diff options
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/plat-omap/devices.c | 40 | ||||
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 695 | ||||
| -rw-r--r-- | arch/arm/plat-omap/gpio.c | 665 | ||||
| -rw-r--r-- | arch/arm/plat-omap/i2c.c | 128 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/dma.h | 232 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/fpga.h | 4 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/gpio.h | 46 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/i2c.h | 13 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/io.h | 4 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/iommu.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/irqs.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/l4_3xxx.h | 24 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/mailbox.h | 8 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap-serial.h | 14 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/uncompress.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/io.c | 58 | ||||
| -rw-r--r-- | arch/arm/plat-omap/iommu.c | 24 | ||||
| -rw-r--r-- | arch/arm/plat-omap/iovmm.c | 81 | ||||
| -rw-r--r-- | arch/arm/plat-omap/mailbox.c | 130 | ||||
| -rw-r--r-- | arch/arm/plat-omap/mcbsp.c | 16 | ||||
| -rw-r--r-- | arch/arm/plat-omap/sram.c | 2 |
22 files changed, 910 insertions, 1286 deletions
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 92c5bb7909f5..5e63e5069e0d 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -109,6 +109,9 @@ config OMAP_IOMMU_DEBUG Say N unless you know you need this. +config OMAP_IOMMU_IVA2 + bool + choice prompt "System timer" default OMAP_32K_TIMER if !ARCH_OMAP15XX diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index fc819120978d..10245b837c10 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c @@ -232,46 +232,6 @@ static void omap_init_uwire(void) static inline void omap_init_uwire(void) {} #endif -/*-------------------------------------------------------------------------*/ - -#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE) - -static struct resource wdt_resources[] = { - { - .flags = IORESOURCE_MEM, - }, -}; - -static struct platform_device omap_wdt_device = { - .name = "omap_wdt", - .id = -1, - .num_resources = ARRAY_SIZE(wdt_resources), - .resource = wdt_resources, -}; - -static void omap_init_wdt(void) -{ - if (cpu_is_omap16xx()) - wdt_resources[0].start = 0xfffeb000; - else if (cpu_is_omap2420()) - wdt_resources[0].start = 0x48022000; /* WDT2 */ - else if (cpu_is_omap2430()) - wdt_resources[0].start = 0x49016000; /* WDT2 */ - else if (cpu_is_omap343x()) - wdt_resources[0].start = 0x48314000; /* WDT2 */ - else if (cpu_is_omap44xx()) - wdt_resources[0].start = 0x4a314000; - else - return; - - wdt_resources[0].end = wdt_resources[0].start + 0x4f; - - (void) platform_device_register(&omap_wdt_device); -} -#else -static inline void omap_init_wdt(void) {} -#endif - #if defined(CONFIG_TIDSPBRIDGE) || defined(CONFIG_TIDSPBRIDGE_MODULE) static phys_addr_t omap_dsp_phys_mempool_base; diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 2c2826571d45..c4b2b478b1a5 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -15,6 +15,10 @@ * * Support functions for the OMAP internal DMA channels. * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * Converted DMA library into DMA platform driver. + * - G, Manjunath Kondaiah <manjugk@ti.com> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. @@ -53,7 +57,11 @@ enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED }; #define OMAP_FUNC_MUX_ARM_BASE (0xfffe1000 + 0xec) +static struct omap_system_dma_plat_info *p; +static struct omap_dma_dev_attr *d; + static int enable_1510_mode; +static u32 errata; static struct omap_dma_global_context_registers { u32 dma_irqenable_l0; @@ -61,27 +69,6 @@ static struct omap_dma_global_context_registers { u32 dma_gcr; } omap_dma_global_context; -struct omap_dma_lch { - int next_lch; - int dev_id; - u16 saved_csr; - u16 enabled_irqs; - const char *dev_name; - void (*callback)(int lch, u16 ch_status, void *data); - void *data; - -#ifndef CONFIG_ARCH_OMAP1 - /* required for Dynamic chaining */ - int prev_linked_ch; - int next_linked_ch; - int state; - int chain_id; - - int status; -#endif - long flags; -}; - struct dma_link_info { int *linked_dmach_q; int no_of_lchs_linked; @@ -137,15 +124,6 @@ static int omap_dma_reserve_channels; static spinlock_t dma_chan_lock; static struct omap_dma_lch *dma_chan; -static void __iomem *omap_dma_base; - -static const u8 omap1_dma_irq[OMAP1_LOGICAL_DMA_CH_COUNT] = { - INT_DMA_CH0_6, INT_DMA_CH1_7, INT_DMA_CH2_8, INT_DMA_CH3, - INT_DMA_CH4, INT_DMA_CH5, INT_1610_DMA_CH6, INT_1610_DMA_CH7, - INT_1610_DMA_CH8, INT_1610_DMA_CH9, INT_1610_DMA_CH10, - INT_1610_DMA_CH11, INT_1610_DMA_CH12, INT_1610_DMA_CH13, - INT_1610_DMA_CH14, INT_1610_DMA_CH15, INT_DMA_LCD -}; static inline void disable_lnk(int lch); static void omap_disable_channel_irq(int lch); @@ -154,24 +132,6 @@ static inline void omap_enable_channel_irq(int lch); #define REVISIT_24XX() printk(KERN_ERR "FIXME: no %s on 24xx\n", \ __func__); -#define dma_read(reg) \ -({ \ - u32 __val; \ - if (cpu_class_is_omap1()) \ - __val = __raw_readw(omap_dma_base + OMAP1_DMA_##reg); \ - else \ - __val = __raw_readl(omap_dma_base + OMAP_DMA4_##reg); \ - __val; \ -}) - -#define dma_write(val, reg) \ -({ \ - if (cpu_class_is_omap1()) \ - __raw_writew((u16)(val), omap_dma_base + OMAP1_DMA_##reg); \ - else \ - __raw_writel((val), omap_dma_base + OMAP_DMA4_##reg); \ -}) - #ifdef CONFIG_ARCH_OMAP15XX /* Returns 1 if the DMA module is in OMAP1510-compatible mode, 0 otherwise */ int omap_dma_in_1510_mode(void) @@ -206,16 +166,6 @@ static inline void set_gdma_dev(int req, int dev) #define set_gdma_dev(req, dev) do {} while (0) #endif -/* Omap1 only */ -static void clear_lch_regs(int lch) -{ - int i; - void __iomem *lch_base = omap_dma_base + OMAP1_DMA_CH_BASE(lch); - - for (i = 0; i < 0x2c; i += 2) - __raw_writew(0, lch_base + i); -} - void omap_set_dma_priority(int lch, int dst_port, int priority) { unsigned long reg; @@ -248,12 +198,12 @@ void omap_set_dma_priority(int lch, int dst_port, int priority) if (cpu_class_is_omap2()) { u32 ccr; - ccr = dma_read(CCR(lch)); + ccr = p->dma_read(CCR, lch); if (priority) ccr |= (1 << 6); else ccr &= ~(1 << 6); - dma_write(ccr, CCR(lch)); + p->dma_write(ccr, CCR, lch); } } EXPORT_SYMBOL(omap_set_dma_priority); @@ -264,31 +214,31 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, { u32 l; - l = dma_read(CSDP(lch)); + l = p->dma_read(CSDP, lch); l &= ~0x03; l |= data_type; - dma_write(l, CSDP(lch)); + p->dma_write(l, CSDP, lch); if (cpu_class_is_omap1()) { u16 ccr; - ccr = dma_read(CCR(lch)); + ccr = p->dma_read(CCR, lch); ccr &= ~(1 << 5); if (sync_mode == OMAP_DMA_SYNC_FRAME) ccr |= 1 << 5; - dma_write(ccr, CCR(lch)); + p->dma_write(ccr, CCR, lch); - ccr = dma_read(CCR2(lch)); + ccr = p->dma_read(CCR2, lch); ccr &= ~(1 << 2); if (sync_mode == OMAP_DMA_SYNC_BLOCK) ccr |= 1 << 2; - dma_write(ccr, CCR2(lch)); + p->dma_write(ccr, CCR2, lch); } if (cpu_class_is_omap2() && dma_trigger) { u32 val; - val = dma_read(CCR(lch)); + val = p->dma_read(CCR, lch); /* DMA_SYNCHRO_CONTROL_UPPER depends on the channel number */ val &= ~((1 << 23) | (3 << 19) | 0x1f); @@ -313,11 +263,11 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, } else { val &= ~(1 << 24); /* dest synch */ } - dma_write(val, CCR(lch)); + p->dma_write(val, CCR, lch); } - dma_write(elem_count, CEN(lch)); - dma_write(frame_count, CFN(lch)); + p->dma_write(elem_count, CEN, lch); + p->dma_write(frame_count, CFN, lch); } EXPORT_SYMBOL(omap_set_dma_transfer_params); @@ -328,7 +278,7 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) if (cpu_class_is_omap1()) { u16 w; - w = dma_read(CCR2(lch)); + w = p->dma_read(CCR2, lch); w &= ~0x03; switch (mode) { @@ -343,23 +293,22 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) default: BUG(); } - dma_write(w, CCR2(lch)); + p->dma_write(w, CCR2, lch); - w = dma_read(LCH_CTRL(lch)); + w = p->dma_read(LCH_CTRL, lch); w &= ~0x0f; /* Default is channel type 2D */ if (mode) { - dma_write((u16)color, COLOR_L(lch)); - dma_write((u16)(color >> 16), COLOR_U(lch)); + p->dma_write(color, COLOR, lch); w |= 1; /* Channel type G */ } - dma_write(w, LCH_CTRL(lch)); + p->dma_write(w, LCH_CTRL, lch); } if (cpu_class_is_omap2()) { u32 val; - val = dma_read(CCR(lch)); + val = p->dma_read(CCR, lch); val &= ~((1 << 17) | (1 << 16)); switch (mode) { @@ -374,10 +323,10 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) default: BUG(); } - dma_write(val, CCR(lch)); + p->dma_write(val, CCR, lch); color &= 0xffffff; - dma_write(color, COLOR(lch)); + p->dma_write(color, COLOR, lch); } } EXPORT_SYMBOL(omap_set_dma_color_mode); @@ -387,10 +336,10 @@ void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode) if (cpu_class_is_omap2()) { u32 csdp; - csdp = dma_read(CSDP(lch)); + csdp = p->dma_read(CSDP, lch); csdp &= ~(0x3 << 16); csdp |= (mode << 16); - dma_write(csdp, CSDP(lch)); + p->dma_write(csdp, CSDP, lch); } } EXPORT_SYMBOL(omap_set_dma_write_mode); @@ -400,10 +349,10 @@ void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode) if (cpu_class_is_omap1() && !cpu_is_omap15xx()) { u32 l; - l = dma_read(LCH_CTRL(lch)); + l = p->dma_read(LCH_CTRL, lch); l &= ~0x7; l |= mode; - dma_write(l, LCH_CTRL(lch)); + p->dma_write(l, LCH_CTRL, lch); } } EXPORT_SYMBOL(omap_set_dma_channel_mode); @@ -418,27 +367,21 @@ void omap_set_dma_src_params(int lch, int src_port, int src_amode, if (cpu_class_is_omap1()) { u16 w; - w = dma_read(CSDP(lch)); + w = p->dma_read(CSDP, lch); w &= ~(0x1f << 2); w |= src_port << 2; - dma_write(w, CSDP(lch)); + p->dma_write(w, CSDP, lch); } - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); l &= ~(0x03 << 12); l |= src_amode << 12; - dma_write(l, CCR(lch)); - - if (cpu_class_is_omap1()) { - dma_write(src_start >> 16, CSSA_U(lch)); - dma_write((u16)src_start, CSSA_L(lch)); - } + p->dma_write(l, CCR, lch); - if (cpu_class_is_omap2()) - dma_write(src_start, CSSA(lch)); + p->dma_write(src_start, CSSA, lch); - dma_write(src_ei, CSEI(lch)); - dma_write(src_fi, CSFI(lch)); + p->dma_write(src_ei, CSEI, lch); + p->dma_write(src_fi, CSFI, lch); } EXPORT_SYMBOL(omap_set_dma_src_params); @@ -466,8 +409,8 @@ void omap_set_dma_src_index(int lch, int eidx, int fidx) if (cpu_class_is_omap2()) return; - dma_write(eidx, CSEI(lch)); - dma_write(fidx, CSFI(lch)); + p->dma_write(eidx, CSEI, lch); + p->dma_write(fidx, CSFI, lch); } EXPORT_SYMBOL(omap_set_dma_src_index); @@ -475,11 +418,11 @@ void omap_set_dma_src_data_pack(int lch, int enable) { u32 l; - l = dma_read(CSDP(lch)); + l = p->dma_read(CSDP, lch); l &= ~(1 << 6); if (enable) l |= (1 << 6); - dma_write(l, CSDP(lch)); + p->dma_write(l, CSDP, lch); } EXPORT_SYMBOL(omap_set_dma_src_data_pack); @@ -488,7 +431,7 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) unsigned int burst = 0; u32 l; - l = dma_read(CSDP(lch)); + l = p->dma_read(CSDP, lch); l &= ~(0x03 << 7); switch (burst_mode) { @@ -524,7 +467,7 @@ void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) } l |= (burst << 7); - dma_write(l, CSDP(lch)); + p->dma_write(l, CSDP, lch); } EXPORT_SYMBOL(omap_set_dma_src_burst_mode); @@ -536,27 +479,21 @@ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, u32 l; if (cpu_class_is_omap1()) { - l = dma_read(CSDP(lch)); + l = p->dma_read(CSDP, lch); l &= ~(0x1f << 9); l |= dest_port << 9; - dma_write(l, CSDP(lch)); + p->dma_write(l, CSDP, lch); } - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); l &= ~(0x03 << 14); l |= dest_amode << 14; - dma_write(l, CCR(lch)); - - if (cpu_class_is_omap1()) { - dma_write(dest_start >> 16, CDSA_U(lch)); - dma_write(dest_start, CDSA_L(lch)); - } + p->dma_write(l, CCR, lch); - if (cpu_class_is_omap2()) - dma_write(dest_start, CDSA(lch)); + p->dma_write(dest_start, CDSA, lch); - dma_write(dst_ei, CDEI(lch)); - dma_write(dst_fi, CDFI(lch)); + p->dma_write(dst_ei, CDEI, lch); + p->dma_write(dst_fi, CDFI, lch); } EXPORT_SYMBOL(omap_set_dma_dest_params); @@ -565,8 +502,8 @@ void omap_set_dma_dest_index(int lch, int eidx, int fidx) if (cpu_class_is_omap2()) return; - dma_write(eidx, CDEI(lch)); - dma_write(fidx, CDFI(lch)); + p->dma_write(eidx, CDEI, lch); + p->dma_write(fidx, CDFI, lch); } EXPORT_SYMBOL(omap_set_dma_dest_index); @@ -574,11 +511,11 @@ void omap_set_dma_dest_data_pack(int lch, int enable) { u32 l; - l = dma_read(CSDP(lch)); + l = p->dma_read(CSDP, lch); l &= ~(1 << 13); if (enable) l |= 1 << 13; - dma_write(l, CSDP(lch)); + p->dma_write(l, CSDP, lch); } EXPORT_SYMBOL(omap_set_dma_dest_data_pack); @@ -587,7 +524,7 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) unsigned int burst = 0; u32 l; - l = dma_read(CSDP(lch)); + l = p->dma_read(CSDP, lch); l &= ~(0x03 << 14); switch (burst_mode) { @@ -620,7 +557,7 @@ void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode) return; } l |= (burst << 14); - dma_write(l, CSDP(lch)); + p->dma_write(l, CSDP, lch); } EXPORT_SYMBOL(omap_set_dma_dest_burst_mode); @@ -630,18 +567,18 @@ static inline void omap_enable_channel_irq(int lch) /* Clear CSR */ if (cpu_class_is_omap1()) - status = dma_read(CSR(lch)); + status = p->dma_read(CSR, lch); else if (cpu_class_is_omap2()) - dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(lch)); + p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); /* Enable some nice interrupts. */ - dma_write(dma_chan[lch].enabled_irqs, CICR(lch)); + p->dma_write(dma_chan[lch].enabled_irqs, CICR, lch); } static void omap_disable_channel_irq(int lch) { if (cpu_class_is_omap2()) - dma_write(0, CICR(lch)); + p->dma_write(0, CICR, lch); } void omap_enable_dma_irq(int lch, u16 bits) @@ -660,7 +597,7 @@ static inline void enable_lnk(int lch) { u32 l; - l = dma_read(CLNK_CTRL(lch)); + l = p->dma_read(CLNK_CTRL, lch); if (cpu_class_is_omap1()) l &= ~(1 << 14); @@ -675,18 +612,18 @@ static inline void enable_lnk(int lch) l = dma_chan[lch].next_linked_ch | (1 << 15); #endif - dma_write(l, CLNK_CTRL(lch)); + p->dma_write(l, CLNK_CTRL, lch); } static inline void disable_lnk(int lch) { u32 l; - l = dma_read(CLNK_CTRL(lch)); + l = p->dma_read(CLNK_CTRL, lch); /* Disable interrupts */ if (cpu_class_is_omap1()) { - dma_write(0, CICR(lch)); + p->dma_write(0, CICR, lch); /* Set the STOP_LNK bit */ l |= 1 << 14; } @@ -697,7 +634,7 @@ static inline void disable_lnk(int lch) l &= ~(1 << 15); } - dma_write(l, CLNK_CTRL(lch)); + p->dma_write(l, CLNK_CTRL, lch); dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE; } @@ -710,9 +647,9 @@ static inline void omap2_enable_irq_lch(int lch) return; spin_lock_irqsave(&dma_chan_lock, flags); - val = dma_read(IRQENABLE_L0); + val = p->dma_read(IRQENABLE_L0, lch); val |= 1 << lch; - dma_write(val, IRQENABLE_L0); + p->dma_write(val, IRQENABLE_L0, lch); spin_unlock_irqrestore(&dma_chan_lock, flags); } @@ -725,9 +662,9 @@ static inline void omap2_disable_irq_lch(int lch) return; spin_lock_irqsave(&dma_chan_lock, flags); - val = dma_read(IRQENABLE_L0); + val = p->dma_read(IRQENABLE_L0, lch); val &= ~(1 << lch); - dma_write(val, IRQENABLE_L0); + p->dma_write(val, IRQENABLE_L0, lch); spin_unlock_irqrestore(&dma_chan_lock, flags); } @@ -754,8 +691,8 @@ int omap_request_dma(int dev_id, const char *dev_name, chan = dma_chan + free_ch; chan->dev_id = dev_id; - if (cpu_class_is_omap1()) - clear_lch_regs(free_ch); + if (p->clear_lch_regs) + p->clear_lch_regs(free_ch); if (cpu_class_is_omap2()) omap_clear_dma(free_ch); @@ -792,17 +729,17 @@ int omap_request_dma(int dev_id, const char *dev_name, * Disable the 1510 compatibility mode and set the sync device * id. */ - dma_write(dev_id | (1 << 10), CCR(free_ch)); + p->dma_write(dev_id | (1 << 10), CCR, free_ch); } else if (cpu_is_omap7xx() || cpu_is_omap15xx()) { - dma_write(dev_id, CCR(free_ch)); + p->dma_write(dev_id, CCR, free_ch); } if (cpu_class_is_omap2()) { omap2_enable_irq_lch(free_ch); omap_enable_channel_irq(free_ch); /* Clear the CSR register and IRQ status register */ - dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(free_ch)); - dma_write(1 << free_ch, IRQSTATUS_L0); + p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, free_ch); + p->dma_write(1 << free_ch, IRQSTATUS_L0, 0); } *dma_ch_out = free_ch; @@ -823,23 +760,23 @@ void omap_free_dma(int lch) if (cpu_class_is_omap1()) { /* Disable all DMA interrupts for the channel. */ - dma_write(0, CICR(lch)); + p->dma_write(0, CICR, lch); /* Make sure the DMA transfer is stopped. */ - dma_write(0, CCR(lch)); + p->dma_write(0, CCR, lch); } if (cpu_class_is_omap2()) { omap2_disable_irq_lch(lch); /* Clear the CSR register and IRQ status register */ - dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(lch)); - dma_write(1 << lch, IRQSTATUS_L0); + p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, lch); + p->dma_write(1 << lch, IRQSTATUS_L0, lch); /* Disable all DMA interrupts for the channel. */ - dma_write(0, CICR(lch)); + p->dma_write(0, CICR, lch); /* Make sure the DMA transfer is stopped. */ - dma_write(0, CCR(lch)); + p->dma_write(0, CCR, lch); omap_clear_dma(lch); } @@ -880,7 +817,7 @@ omap_dma_set_global_params(int arb_rate, int max_fifo_depth, int tparams) reg |= (0x3 & tparams) << 12; reg |= (arb_rate & 0xff) << 16; - dma_write(reg, GCR); + p->dma_write(reg, GCR, 0); } EXPORT_SYMBOL(omap_dma_set_global_params); @@ -903,14 +840,14 @@ omap_dma_set_prio_lch(int lch, unsigned char read_prio, printk(KERN_ERR "Invalid channel id\n"); return -EINVAL; } - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); l &= ~((1 << 6) | (1 << 26)); if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx()) l |= ((read_prio & 0x1) << 6) | ((write_prio & 0x1) << 26); else l |= ((read_prio & 0x1) << 6); - dma_write(l, CCR(lch)); + p->dma_write(l, CCR, lch); return 0; } @@ -925,25 +862,7 @@ void omap_clear_dma(int lch) unsigned long flags; local_irq_save(flags); - - if (cpu_class_is_omap1()) { - u32 l; - - l = dma_read(CCR(lch)); - l &= ~OMAP_DMA_CCR_EN; - dma_write(l, CCR(lch)); - - /* Clear pending interrupts */ - l = dma_read(CSR(lch)); - } - - if (cpu_class_is_omap2()) { - int i; - void __iomem *lch_base = omap_dma_base + OMAP_DMA4_CH_BASE(lch); - for (i = 0; i < 0x44; i += 4) - __raw_writel(0, lch_base + i); - } - + p->clear_dma(lch); local_irq_restore(flags); } EXPORT_SYMBOL(omap_clear_dma); @@ -957,13 +876,13 @@ void omap_start_dma(int lch) * before starting dma transfer. */ if (cpu_is_omap15xx()) - dma_write(0, CPC(lch)); + p->dma_write(0, CPC, lch); else - dma_write(0, CDAC(lch)); + p->dma_write(0, CDAC, lch); if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) { int next_lch, cur_lch; - char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT]; + char dma_chan_link_map[dma_lch_count]; dma_chan_link_map[lch] = 1; /* Set the link register of the first channel */ @@ -985,32 +904,18 @@ void omap_start_dma(int lch) cur_lch = next_lch; } while (next_lch != -1); - } else if (cpu_is_omap242x() || - (cpu_is_omap243x() && omap_type() <= OMAP2430_REV_ES1_0)) { - - /* Errata: Need to write lch even if not using chaining */ - dma_write(lch, CLNK_CTRL(lch)); - } + } else if (IS_DMA_ERRATA(DMA_ERRATA_PARALLEL_CHANNELS)) + p->dma_write(lch, CLNK_CTRL, lch); omap_enable_channel_irq(lch); - l = dma_read(CCR(lch)); - - /* - * Errata: Inter Frame DMA buffering issue (All OMAP2420 and - * OMAP2430ES1.0): DMA will wrongly buffer elements if packing and - * bursting is enabled. This might result in data gets stalled in - * FIFO at the end of the block. - * Workaround: DMA channels must have BUFFERING_DISABLED bit set to - * guarantee no data will stay in the DMA FIFO in case inter frame - * buffering occurs. - */ - if (cpu_is_omap2420() || - (cpu_is_omap2430() && (omap_type() == OMAP2430_REV_ES1_0))) - l |= OMAP_DMA_CCR_BUFFERING_DISABLE; + l = p->dma_read(CCR, lch); + if (IS_DMA_ERRATA(DMA_ERRATA_IFRAME_BUFFERING)) + l |= OMAP_DMA_CCR_BUFFERING_DISABLE; l |= OMAP_DMA_CCR_EN; - dma_write(l, CCR(lch)); + + p->dma_write(l, CCR, lch); dma_chan[lch].flags |= OMAP_DMA_ACTIVE; } @@ -1022,46 +927,46 @@ void omap_stop_dma(int lch) /* Disable all interrupts on the channel */ if (cpu_class_is_omap1()) - dma_write(0, CICR(lch)); + p->dma_write(0, CICR, lch); - l = dma_read(CCR(lch)); - /* OMAP3 Errata i541: sDMA FIFO draining does not finish */ - if (cpu_is_omap34xx() && (l & OMAP_DMA_CCR_SEL_SRC_DST_SYNC)) { + l = p->dma_read(CCR, lch); + if (IS_DMA_ERRATA(DMA_ERRATA_i541) && + (l & OMAP_DMA_CCR_SEL_SRC_DST_SYNC)) { int i = 0; u32 sys_cf; /* Configure No-Standby */ - l = dma_read(OCP_SYSCONFIG); + l = p->dma_read(OCP_SYSCONFIG, lch); sys_cf = l; l &= ~DMA_SYSCONFIG_MIDLEMODE_MASK; l |= DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_NO_IDLE); - dma_write(l , OCP_SYSCONFIG); + p->dma_write(l , OCP_SYSCONFIG, 0); - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); l &= ~OMAP_DMA_CCR_EN; - dma_write(l, CCR(lch)); + p->dma_write(l, CCR, lch); /* Wait for sDMA FIFO drain */ - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); while (i < 100 && (l & (OMAP_DMA_CCR_RD_ACTIVE | OMAP_DMA_CCR_WR_ACTIVE))) { udelay(5); i++; - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); } if (i >= 100) printk(KERN_ERR "DMA drain did not complete on " "lch %d\n", lch); /* Restore OCP_SYSCONFIG */ - dma_write(sys_cf, OCP_SYSCONFIG); + p->dma_write(sys_cf, OCP_SYSCONFIG, lch); } else { l &= ~OMAP_DMA_CCR_EN; - dma_write(l, CCR(lch)); + p->dma_write(l, CCR, lch); } if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) { int next_lch, cur_lch = lch; - char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT]; + char dma_chan_link_map[dma_lch_count]; memset(dma_chan_link_map, 0, sizeof(dma_chan_link_map)); do { @@ -1122,19 +1027,15 @@ dma_addr_t omap_get_dma_src_pos(int lch) dma_addr_t offset = 0; if (cpu_is_omap15xx()) - offset = dma_read(CPC(lch)); + offset = p->dma_read(CPC, lch); else - offset = dma_read(CSAC(lch)); + offset = p->dma_read(CSAC, lch); - /* - * omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is - * read before the DMA controller finished disabling the channel. - */ - if (!cpu_is_omap15xx() && offset == 0) - offset = dma_read(CSAC(lch)); + if (IS_DMA_ERRATA(DMA_ERRATA_3_3) && offset == 0) + offset = p->dma_read(CSAC, lch); if (cpu_class_is_omap1()) - offset |= (dma_read(CSSA_U(lch)) << 16); + offset |= (p->dma_read(CSSA, lch) & 0xFFFF0000); return offset; } @@ -1153,19 +1054,19 @@ dma_addr_t omap_get_dma_dst_pos(int lch) dma_addr_t offset = 0; if (cpu_is_omap15xx()) - offset = dma_read(CPC(lch)); + offset = p->dma_read(CPC, lch); else - offset = dma_read(CDAC(lch)); + offset = p->dma_read(CDAC, lch); /* * omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is * read before the DMA controller finished disabling the channel. */ if (!cpu_is_omap15xx() && offset == 0) - offset = dma_read(CDAC(lch)); + offset = p->dma_read(CDAC, lch); if (cpu_class_is_omap1()) - offset |= (dma_read(CDSA_U(lch)) << 16); + offset |= (p->dma_read(CDSA, lch) & 0xFFFF0000); return offset; } @@ -1173,7 +1074,7 @@ EXPORT_SYMBOL(omap_get_dma_dst_pos); int omap_get_dma_active_status(int lch) { - return (dma_read(CCR(lch)) & OMAP_DMA_CCR_EN) != 0; + return (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN) != 0; } EXPORT_SYMBOL(omap_get_dma_active_status); @@ -1186,7 +1087,7 @@ int omap_dma_running(void) return 1; for (lch = 0; lch < dma_chan_count; lch++) - if (dma_read(CCR(lch)) & OMAP_DMA_CCR_EN) + if (p->dma_read(CCR, lch) & OMAP_DMA_CCR_EN) return 1; return 0; @@ -1201,8 +1102,8 @@ void omap_dma_link_lch(int lch_head, int lch_queue) { if (omap_dma_in_1510_mode()) { if (lch_head == lch_queue) { - dma_write(dma_read(CCR(lch_head)) | (3 << 8), - CCR(lch_head)); + p->dma_write(p->dma_read(CCR, lch_head) | (3 << 8), + CCR, lch_head); return; } printk(KERN_ERR "DMA linking is not supported in 1510 mode\n"); @@ -1228,8 +1129,8 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue) { if (omap_dma_in_1510_mode()) { if (lch_head == lch_queue) { - dma_write(dma_read(CCR(lch_head)) & ~(3 << 8), - CCR(lch_head)); + p->dma_write(p->dma_read(CCR, lch_head) & ~(3 << 8), + CCR, lch_head); return; } printk(KERN_ERR "DMA linking is not supported in 1510 mode\n"); @@ -1255,8 +1156,6 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue) } EXPORT_SYMBOL(omap_dma_unlink_lch); -/*----------------------------------------------------------------------------*/ - #ifndef CONFIG_ARCH_OMAP1 /* Create chain of DMA channesls */ static void create_dma_lch_chain(int lch_head, int lch_queue) @@ -1281,15 +1180,15 @@ static void create_dma_lch_chain(int lch_head, int lch_queue) lch_queue; } - l = dma_read(CLNK_CTRL(lch_head)); + l = p->dma_read(CLNK_CTRL, lch_head); l &= ~(0x1f); l |= lch_queue; - dma_write(l, CLNK_CTRL(lch_head)); + p->dma_write(l, CLNK_CTRL, lch_head); - l = dma_read(CLNK_CTRL(lch_queue)); + l = p->dma_read(CLNK_CTRL, lch_queue); l &= ~(0x1f); l |= (dma_chan[lch_queue].next_linked_ch); - dma_write(l, CLNK_CTRL(lch_queue)); + p->dma_write(l, CLNK_CTRL, lch_queue); } /** @@ -1565,13 +1464,13 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start, /* Set the params to the free channel */ if (src_start != 0) - dma_write(src_start, CSSA(lch)); + p->dma_write(src_start, CSSA, lch); if (dest_start != 0) - dma_write(dest_start, CDSA(lch)); + p->dma_write(dest_start, CDSA, lch); /* Write the buffer size */ - dma_write(elem_count, CEN(lch)); - dma_write(frame_count, CFN(lch)); + p->dma_write(elem_count, CEN, lch); + p->dma_write(frame_count, CFN, lch); /* * If the chain is dynamically linked, @@ -1604,8 +1503,8 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start, enable_lnk(dma_chan[lch].prev_linked_ch); dma_chan[lch].state = DMA_CH_QUEUED; start_dma = 0; - if (0 == ((1 << 7) & dma_read( - CCR(dma_chan[lch].prev_linked_ch)))) { + if (0 == ((1 << 7) & p->dma_read( + CCR, dma_chan[lch].prev_linked_ch))) { disable_lnk(dma_chan[lch]. prev_linked_ch); pr_debug("\n prev ch is stopped\n"); @@ -1621,7 +1520,7 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start, } omap_enable_channel_irq(lch); - l = dma_read(CCR(lch)); + l = p->dma_read(CCR, lch); if ((0 == (l & (1 << 24)))) l &= ~(1 << 25); @@ -1632,12 +1531,12 @@ int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start, l |= (1 << 7); dma_chan[lch].state = DMA_CH_STARTED; pr_debug("starting %d\n", lch); - dma_write(l, CCR(lch)); + p->dma_write(l, CCR, lch); } else start_dma = 0; } else { if (0 == (l & (1 << 7))) - dma_write(l, CCR(lch)); + p->dma_write(l, CCR, lch); } dma_chan[lch].flags |= OMAP_DMA_ACTIVE; } @@ -1682,7 +1581,7 @@ int omap_start_dma_chain_transfers(int chain_id) omap_enable_channel_irq(channels[0]); } - l = dma_read(CCR(channels[0])); + l = p->dma_read(CCR, channels[0]); l |= (1 << 7); dma_linked_lch[chain_id].chain_state = DMA_CHAIN_STARTED; dma_chan[channels[0]].state = DMA_CH_STARTED; @@ -1691,7 +1590,7 @@ int omap_start_dma_chain_transfers(int chain_id) l &= ~(1 << 25); else l |= (1 << 25); - dma_write(l, CCR(channels[0])); + p->dma_write(l, CCR, channels[0]); dma_chan[channels[0]].flags |= OMAP_DMA_ACTIVE; @@ -1711,7 +1610,7 @@ int omap_stop_dma_chain_transfers(int chain_id) { int *channels; u32 l, i; - u32 sys_cf; + u32 sys_cf = 0; /* Check for input params */ if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { @@ -1726,22 +1625,20 @@ int omap_stop_dma_chain_transfers(int chain_id) } channels = dma_linked_lch[chain_id].linked_dmach_q; - /* - * DMA Errata: - * Special programming model needed to disable DMA before end of block - */ - sys_cf = dma_read(OCP_SYSCONFIG); - l = sys_cf; - /* Middle mode reg set no Standby */ - l &= ~((1 << 12)|(1 << 13)); - dma_write(l, OCP_SYSCONFIG); + if (IS_DMA_ERRATA(DMA_ERRATA_i88)) { + sys_cf = p->dma_read(OCP_SYSCONFIG, 0); + l = sys_cf; + /* Middle mode reg set no Standby */ + l &= ~((1 << 12)|(1 << 13)); + p->dma_write(l, OCP_SYSCONFIG, 0); + } for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) { /* Stop the Channel transmission */ - l = dma_read(CCR(channels[i])); + l = p->dma_read(CCR, channels[i]); l &= ~(1 << 7); - dma_write(l, CCR(channels[i])); + p->dma_write(l, CCR, channels[i]); /* Disable the link in all the channels */ disable_lnk(channels[i]); @@ -1753,8 +1650,8 @@ int omap_stop_dma_chain_transfers(int chain_id) /* Reset the Queue pointers */ OMAP_DMA_CHAIN_QINIT(chain_id); - /* Errata - put in the old value */ - dma_write(sys_cf, OCP_SYSCONFIG); + if (IS_DMA_ERRATA(DMA_ERRATA_i88)) + p->dma_write(sys_cf, OCP_SYSCONFIG, 0); return 0; } @@ -1796,8 +1693,8 @@ int omap_get_dma_chain_index(int chain_id, int *ei, int *fi) /* Get the current channel */ lch = channels[dma_linked_lch[chain_id].q_head]; - *ei = dma_read(CCEN(lch)); - *fi = dma_read(CCFN(lch)); + *ei = p->dma_read(CCEN, lch); + *fi = p->dma_read(CCFN, lch); return 0; } @@ -1834,7 +1731,7 @@ int omap_get_dma_chain_dst_pos(int chain_id) /* Get the current channel */ lch = channels[dma_linked_lch[chain_id].q_head]; - return dma_read(CDAC(lch)); + return p->dma_read(CDAC, lch); } EXPORT_SYMBOL(omap_get_dma_chain_dst_pos); @@ -1868,7 +1765,7 @@ int omap_get_dma_chain_src_pos(int chain_id) /* Get the current channel */ lch = channels[dma_linked_lch[chain_id].q_head]; - return dma_read(CSAC(lch)); + return p->dma_read(CSAC, lch); } EXPORT_SYMBOL(omap_get_dma_chain_src_pos); #endif /* ifndef CONFIG_ARCH_OMAP1 */ @@ -1885,7 +1782,7 @@ static int omap1_dma_handle_ch(int ch) csr = dma_chan[ch].saved_csr; dma_chan[ch].saved_csr = 0; } else - csr = dma_read(CSR(ch)); + csr = p->dma_read(CSR, ch); if (enable_1510_mode && ch <= 2 && (csr >> 7) != 0) { dma_chan[ch + 6].saved_csr = csr >> 7; csr &= 0x7f; @@ -1938,13 +1835,13 @@ static irqreturn_t omap1_dma_irq_handler(int irq, void *dev_id) static int omap2_dma_handle_ch(int ch) { - u32 status = dma_read(CSR(ch)); + u32 status = p->dma_read(CSR, ch); if (!status) { if (printk_ratelimit()) printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n", ch); - dma_write(1 << ch, IRQSTATUS_L0); + p->dma_write(1 << ch, IRQSTATUS_L0, ch); return 0; } if (unlikely(dma_chan[ch].dev_id == -1)) { @@ -1960,17 +1857,12 @@ static int omap2_dma_handle_ch(int ch) if (unlikely(status & OMAP2_DMA_TRANS_ERR_IRQ)) { printk(KERN_INFO "DMA transaction error with device %d\n", dma_chan[ch].dev_id); - if (cpu_class_is_omap2()) { - /* - * Errata: sDMA Channel is not disabled - * after a transaction error. So we explicitely - * disable the channel - */ + if (IS_DMA_ERRATA(DMA_ERRATA_i378)) { u32 ccr; - ccr = dma_read(CCR(ch)); + ccr = p->dma_read(CCR, ch); ccr &= ~OMAP_DMA_CCR_EN; - dma_write(ccr, CCR(ch)); + p->dma_write(ccr, CCR, ch); dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE; } } @@ -1981,16 +1873,16 @@ static int omap2_dma_handle_ch(int ch) printk(KERN_INFO "DMA misaligned error with device %d\n", dma_chan[ch].dev_id); - dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR(ch)); - dma_write(1 << ch, IRQSTATUS_L0); + p->dma_write(OMAP2_DMA_CSR_CLEAR_MASK, CSR, ch); + p->dma_write(1 << ch, IRQSTATUS_L0, ch); /* read back the register to flush the write */ - dma_read(IRQSTATUS_L0); + p->dma_read(IRQSTATUS_L0, ch); /* If the ch is not chained then chain_id will be -1 */ if (dma_chan[ch].chain_id != -1) { int chain_id = dma_chan[ch].chain_id; dma_chan[ch].state = DMA_CH_NOTSTARTED; - if (dma_read(CLNK_CTRL(ch)) & (1 << 15)) + if (p->dma_read(CLNK_CTRL, ch) & (1 << 15)) dma_chan[dma_chan[ch].next_linked_ch].state = DMA_CH_STARTED; if (dma_linked_lch[chain_id].chain_mode == @@ -2000,10 +1892,10 @@ static int omap2_dma_handle_ch(int ch) if (!OMAP_DMA_CHAIN_QEMPTY(chain_id)) OMAP_DMA_CHAIN_INCQHEAD(chain_id); - status = dma_read(CSR(ch)); + status = p->dma_read(CSR, ch); } - dma_write(status, CSR(ch)); + p->dma_write(status, CSR, ch); if (likely(dma_chan[ch].callback != NULL)) dma_chan[ch].callback(ch, status, dma_chan[ch].data); @@ -2017,13 +1909,13 @@ static irqreturn_t omap2_dma_irq_handler(int irq, void *dev_id) u32 val, enable_reg; int i; - val = dma_read(IRQSTATUS_L0); + val = p->dma_read(IRQSTATUS_L0, 0); if (val == 0) { if (printk_ratelimit()) printk(KERN_WARNING "Spurious DMA IRQ\n"); return IRQ_HANDLED; } - enable_reg = dma_read(IRQENABLE_L0); + enable_reg = p->dma_read(IRQENABLE_L0, 0); val &= enable_reg; /* Dispatch only relevant interrupts */ for (i = 0; i < dma_lch_count && val != 0; i++) { if (val & 1) @@ -2049,119 +1941,66 @@ static struct irqaction omap24xx_dma_irq; void omap_dma_global_context_save(void) { omap_dma_global_context.dma_irqenable_l0 = - dma_read(IRQENABLE_L0); + p->dma_read(IRQENABLE_L0, 0); omap_dma_global_context.dma_ocp_sysconfig = - dma_read(OCP_SYSCONFIG); - omap_dma_global_context.dma_gcr = dma_read(GCR); + p->dma_read(OCP_SYSCONFIG, 0); + omap_dma_global_context.dma_gcr = p->dma_read(GCR, 0); } void omap_dma_global_context_restore(void) { int ch; - dma_write(omap_dma_global_context.dma_gcr, GCR); - dma_write(omap_dma_global_context.dma_ocp_sysconfig, - OCP_SYSCONFIG); - dma_write(omap_dma_global_context.dma_irqenable_l0, - IRQENABLE_L0); + p->dma_write(omap_dma_global_context.dma_gcr, GCR, 0); + p->dma_write(omap_dma_global_context.dma_ocp_sysconfig, + OCP_SYSCONFIG, 0); + p->dma_write(omap_dma_global_context.dma_irqenable_l0, + IRQENABLE_L0, 0); - /* - * A bug in ROM code leaves IRQ status for channels 0 and 1 uncleared - * after secure sram context save and restore. Hence we need to - * manually clear those IRQs to avoid spurious interrupts. This - * affects only secure devices. - */ - if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP)) - dma_write(0x3 , IRQSTATUS_L0); + if (IS_DMA_ERRATA(DMA_ROMCODE_BUG)) + p->dma_write(0x3 , IRQSTATUS_L0, 0); for (ch = 0; ch < dma_chan_count; ch++) if (dma_chan[ch].dev_id != -1) omap_clear_dma(ch); } -/*----------------------------------------------------------------------------*/ - -static int __init omap_init_dma(void) +static int __devinit omap_system_dma_probe(struct platform_device *pdev) { - unsigned long base; - int ch, r; - - if (cpu_class_is_omap1()) { - base = OMAP1_DMA_BASE; - dma_lch_count = OMAP1_LOGICAL_DMA_CH_COUNT; - } else if (cpu_is_omap24xx()) { - base = OMAP24XX_DMA4_BASE; - dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; - } else if (cpu_is_omap34xx()) { - base = OMAP34XX_DMA4_BASE; - dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; - } else if (cpu_is_omap44xx()) { - base = OMAP44XX_DMA4_BASE; - dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT; - } else { - pr_err("DMA init failed for unsupported omap\n"); - return -ENODEV; + int ch, ret = 0; + int dma_irq; + char irq_name[4]; + int irq_rel; + + p = pdev->dev.platform_data; + if (!p) { + dev_err(&pdev->dev, "%s: System DMA initialized without" + "platform data\n", __func__); + return -EINVAL; } - omap_dma_base = ioremap(base, SZ_4K); - BUG_ON(!omap_dma_base); + d = p->dma_attr; + errata = p->errata; - if (cpu_class_is_omap2() && omap_dma_reserve_channels + if ((d->dev_caps & RESERVE_CHANNEL) && omap_dma_reserve_channels && (omap_dma_reserve_channels <= dma_lch_count)) - dma_lch_count = omap_dma_reserve_channels; + d->lch_count = omap_dma_reserve_channels; - dma_chan = kzalloc(sizeof(struct omap_dma_lch) * dma_lch_count, - GFP_KERNEL); - if (!dma_chan) { - r = -ENOMEM; - goto out_unmap; - } + dma_lch_count = d->lch_count; + dma_chan_count = dma_lch_count; + dma_chan = d->chan; + enable_1510_mode = d->dev_caps & ENABLE_1510_MODE; if (cpu_class_is_omap2()) { dma_linked_lch = kzalloc(sizeof(struct dma_link_info) * dma_lch_count, GFP_KERNEL); if (!dma_linked_lch) { - r = -ENOMEM; - goto out_free; + ret = -ENOMEM; + goto exit_dma_lch_fail; } } - if (cpu_is_omap15xx()) { - printk(KERN_INFO "DMA support for OMAP15xx initialized\n"); - dma_chan_count = 9; - enable_1510_mode = 1; - } else if (cpu_is_omap16xx() || cpu_is_omap7xx()) { - printk(KERN_INFO "OMAP DMA hardware version %d\n", - dma_read(HW_ID)); - printk(KERN_INFO "DMA capabilities: %08x:%08x:%04x:%04x:%04x\n", - (dma_read(CAPS_0_U) << 16) | - dma_read(CAPS_0_L), - (dma_read(CAPS_1_U) << 16) | - dma_read(CAPS_1_L), - dma_read(CAPS_2), dma_read(CAPS_3), - dma_read(CAPS_4)); - if (!enable_1510_mode) { - u16 w; - - /* Disable OMAP 3.0/3.1 compatibility mode. */ - w = dma_read(GSCR); - w |= 1 << 3; - dma_write(w, GSCR); - dma_chan_count = 16; - } else - dma_chan_count = 9; - } else if (cpu_class_is_omap2()) { - u8 revision = dma_read(REVISION) & 0xff; - printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n", - revision >> 4, revision & 0xf); - dma_chan_count = dma_lch_count; - } else { - dma_chan_count = 0; - return 0; - } - spin_lock_init(&dma_chan_lock); - for (ch = 0; ch < dma_chan_count; ch++) { omap_clear_dma(ch); if (cpu_class_is_omap2()) @@ -2178,20 +2017,23 @@ static int __init omap_init_dma(void) * request_irq() doesn't like dev_id (ie. ch) being * zero, so we have to kludge around this. */ - r = request_irq(omap1_dma_irq[ch], + sprintf(&irq_name[0], "%d", ch); + dma_irq = platform_get_irq_byname(pdev, irq_name); + + if (dma_irq < 0) { + ret = dma_irq; + goto exit_dma_irq_fail; + } + + /* INT_DMA_LCD is handled in lcd_dma.c */ + if (dma_irq == INT_DMA_LCD) + continue; + + ret = request_irq(dma_irq, omap1_dma_irq_handler, 0, "DMA", (void *) (ch + 1)); - if (r != 0) { - int i; - - printk(KERN_ERR "unable to request IRQ %d " - "for DMA (error %d)\n", - omap1_dma_irq[ch], r); - for (i = 0; i < ch; i++) - free_irq(omap1_dma_irq[i], - (void *) (i + 1)); - goto out_free; - } + if (ret != 0) + goto exit_dma_irq_fail; } } @@ -2200,46 +2042,91 @@ static int __init omap_init_dma(void) DMA_DEFAULT_FIFO_DEPTH, 0); if (cpu_class_is_omap2()) { - int irq; - if (cpu_is_omap44xx()) - irq = OMAP44XX_IRQ_SDMA_0; - else - irq = INT_24XX_SDMA_IRQ0; - setup_irq(irq, &omap24xx_dma_irq); - } - - if (cpu_is_omap34xx() || cpu_is_omap44xx()) { - /* Enable smartidle idlemodes and autoidle */ - u32 v = dma_read(OCP_SYSCONFIG); - v &= ~(DMA_SYSCONFIG_MIDLEMODE_MASK | - DMA_SYSCONFIG_SIDLEMODE_MASK | - DMA_SYSCONFIG_AUTOIDLE); - v |= (DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_SMARTIDLE) | - DMA_SYSCONFIG_SIDLEMODE(DMA_IDLEMODE_SMARTIDLE) | - DMA_SYSCONFIG_AUTOIDLE); - dma_write(v , OCP_SYSCONFIG); - /* reserve dma channels 0 and 1 in high security devices */ - if (cpu_is_omap34xx() && - (omap_type() != OMAP2_DEVICE_TYPE_GP)) { - printk(KERN_INFO "Reserving DMA channels 0 and 1 for " - "HS ROM code\n"); - dma_chan[0].dev_id = 0; - dma_chan[1].dev_id = 1; + strcpy(irq_name, "0"); + dma_irq = platform_get_irq_byname(pdev, irq_name); + if (dma_irq < 0) { + dev_err(&pdev->dev, "failed: request IRQ %d", dma_irq); + goto exit_dma_lch_fail; + } + ret = setup_irq(dma_irq, &omap24xx_dma_irq); + if (ret) { + dev_err(&pdev->dev, "set_up failed for IRQ %d" + "for DMA (error %d)\n", dma_irq, ret); + goto exit_dma_lch_fail; } } + /* reserve dma channels 0 and 1 in high security devices */ + if (cpu_is_omap34xx() && + (omap_type() != OMAP2_DEVICE_TYPE_GP)) { + printk(KERN_INFO "Reserving DMA channels 0 and 1 for " + "HS ROM code\n"); + dma_chan[0].dev_id = 0; + dma_chan[1].dev_id = 1; + } + p->show_dma_caps(); return 0; -out_free: +exit_dma_irq_fail: + dev_err(&pdev->dev, "unable to request IRQ %d" + "for DMA (error %d)\n", dma_irq, ret); + for (irq_rel = 0; irq_rel < ch; irq_rel++) { + dma_irq = platform_get_irq(pdev, irq_rel); + free_irq(dma_irq, (void *)(irq_rel + 1)); + } + +exit_dma_lch_fail: + kfree(p); + kfree(d); kfree(dma_chan); + return ret; +} -out_unmap: - iounmap(omap_dma_base); +static int __devexit omap_system_dma_remove(struct platform_device *pdev) +{ + int dma_irq; - return r; + if (cpu_class_is_omap2()) { + char irq_name[4]; + strcpy(irq_name, "0"); + dma_irq = platform_get_irq_byname(pdev, irq_name); + remove_irq(dma_irq, &omap24xx_dma_irq); + } else { + int irq_rel = 0; + for ( ; irq_rel < dma_chan_count; irq_rel++) { + dma_irq = platform_get_irq(pdev, irq_rel); + free_irq(dma_irq, (void *)(irq_rel + 1)); + } + } + kfree(p); + kfree(d); + kfree(dma_chan); + return 0; +} + +static struct platform_driver omap_system_dma_driver = { + .probe = omap_system_dma_probe, + .remove = omap_system_dma_remove, + .driver = { + .name = "omap_dma_system" + }, +}; + +static int __init omap_system_dma_init(void) +{ + return platform_driver_register(&omap_system_dma_driver); +} +arch_initcall(omap_system_dma_init); + +static void __exit omap_system_dma_exit(void) +{ + platform_driver_unregister(&omap_system_dma_driver); } -arch_initcall(omap_init_dma); +MODULE_DESCRIPTION("OMAP SYSTEM DMA DRIVER"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRIVER_NAME); +MODULE_AUTHOR("Texas Instruments Inc"); /* * Reserve the omap SDMA channels using cmdline bootarg diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index c05c653d1674..8d493b992e70 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -21,6 +21,8 @@ #include <linux/err.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/slab.h> +#include <linux/pm_runtime.h> #include <mach/hardware.h> #include <asm/irq.h> @@ -32,7 +34,6 @@ /* * OMAP1510 GPIO registers */ -#define OMAP1510_GPIO_BASE 0xfffce000 #define OMAP1510_GPIO_DATA_INPUT 0x00 #define OMAP1510_GPIO_DATA_OUTPUT 0x04 #define OMAP1510_GPIO_DIR_CONTROL 0x08 @@ -46,10 +47,6 @@ /* * OMAP1610 specific GPIO registers */ -#define OMAP1610_GPIO1_BASE 0xfffbe400 -#define OMAP1610_GPIO2_BASE 0xfffbec00 -#define OMAP1610_GPIO3_BASE 0xfffbb400 -#define OMAP1610_GPIO4_BASE 0xfffbbc00 #define OMAP1610_GPIO_REVISION 0x0000 #define OMAP1610_GPIO_SYSCONFIG 0x0010 #define OMAP1610_GPIO_SYSSTATUS 0x0014 @@ -71,12 +68,6 @@ /* * OMAP7XX specific GPIO registers */ -#define OMAP7XX_GPIO1_BASE 0xfffbc000 -#define OMAP7XX_GPIO2_BASE 0xfffbc800 -#define OMAP7XX_GPIO3_BASE 0xfffbd000 -#define OMAP7XX_GPIO4_BASE 0xfffbd800 -#define OMAP7XX_GPIO5_BASE 0xfffbe000 -#define OMAP7XX_GPIO6_BASE 0xfffbe800 #define OMAP7XX_GPIO_DATA_INPUT 0x00 #define OMAP7XX_GPIO_DATA_OUTPUT 0x04 #define OMAP7XX_GPIO_DIR_CONTROL 0x08 @@ -84,25 +75,10 @@ #define OMAP7XX_GPIO_INT_MASK 0x10 #define OMAP7XX_GPIO_INT_STATUS 0x14 -#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE - /* - * omap24xx specific GPIO registers + * omap2+ specific GPIO registers */ -#define OMAP242X_GPIO1_BASE 0x48018000 -#define OMAP242X_GPIO2_BASE 0x4801a000 -#define OMAP242X_GPIO3_BASE 0x4801c000 -#define OMAP242X_GPIO4_BASE 0x4801e000 - -#define OMAP243X_GPIO1_BASE 0x4900C000 -#define OMAP243X_GPIO2_BASE 0x4900E000 -#define OMAP243X_GPIO3_BASE 0x49010000 -#define OMAP243X_GPIO4_BASE 0x49012000 -#define OMAP243X_GPIO5_BASE 0x480B6000 - #define OMAP24XX_GPIO_REVISION 0x0000 -#define OMAP24XX_GPIO_SYSCONFIG 0x0010 -#define OMAP24XX_GPIO_SYSSTATUS 0x0014 #define OMAP24XX_GPIO_IRQSTATUS1 0x0018 #define OMAP24XX_GPIO_IRQSTATUS2 0x0028 #define OMAP24XX_GPIO_IRQENABLE2 0x002c @@ -126,7 +102,6 @@ #define OMAP24XX_GPIO_SETDATAOUT 0x0094 #define OMAP4_GPIO_REVISION 0x0000 -#define OMAP4_GPIO_SYSCONFIG 0x0010 #define OMAP4_GPIO_EOI 0x0020 #define OMAP4_GPIO_IRQSTATUSRAW0 0x0024 #define OMAP4_GPIO_IRQSTATUSRAW1 0x0028 @@ -138,7 +113,6 @@ #define OMAP4_GPIO_IRQSTATUSCLR1 0x0040 #define OMAP4_GPIO_IRQWAKEN0 0x0044 #define OMAP4_GPIO_IRQWAKEN1 0x0048 -#define OMAP4_GPIO_SYSSTATUS 0x0114 #define OMAP4_GPIO_IRQENABLE1 0x011c #define OMAP4_GPIO_WAKE_EN 0x0120 #define OMAP4_GPIO_IRQSTATUS2 0x0128 @@ -159,26 +133,6 @@ #define OMAP4_GPIO_SETWKUENA 0x0184 #define OMAP4_GPIO_CLEARDATAOUT 0x0190 #define OMAP4_GPIO_SETDATAOUT 0x0194 -/* - * omap34xx specific GPIO registers - */ - -#define OMAP34XX_GPIO1_BASE 0x48310000 -#define OMAP34XX_GPIO2_BASE 0x49050000 -#define OMAP34XX_GPIO3_BASE 0x49052000 -#define OMAP34XX_GPIO4_BASE 0x49054000 -#define OMAP34XX_GPIO5_BASE 0x49056000 -#define OMAP34XX_GPIO6_BASE 0x49058000 - -/* - * OMAP44XX specific GPIO registers - */ -#define OMAP44XX_GPIO1_BASE 0x4a310000 -#define OMAP44XX_GPIO2_BASE 0x48055000 -#define OMAP44XX_GPIO3_BASE 0x48057000 -#define OMAP44XX_GPIO4_BASE 0x48059000 -#define OMAP44XX_GPIO5_BASE 0x4805B000 -#define OMAP44XX_GPIO6_BASE 0x4805D000 struct gpio_bank { unsigned long pbase; @@ -190,14 +144,12 @@ struct gpio_bank { u32 suspend_wakeup; u32 saved_wakeup; #endif -#ifdef CONFIG_ARCH_OMAP2PLUS u32 non_wakeup_gpios; u32 enabled_non_wakeup_gpios; u32 saved_datain; u32 saved_fallingdetect; u32 saved_risingdetect; -#endif u32 level_mask; u32 toggle_mask; spinlock_t lock; @@ -205,104 +157,13 @@ struct gpio_bank { struct clk *dbck; u32 mod_usage; u32 dbck_enable_mask; + struct device *dev; + bool dbck_flag; + int stride; }; -#define METHOD_MPUIO 0 -#define METHOD_GPIO_1510 1 -#define METHOD_GPIO_1610 2 -#define METHOD_GPIO_7XX 3 -#define METHOD_GPIO_24XX 5 -#define METHOD_GPIO_44XX 6 - -#ifdef CONFIG_ARCH_OMAP16XX -static struct gpio_bank gpio_bank_1610[5] = { - { OMAP1_MPUIO_VBASE, NULL, INT_MPUIO, IH_MPUIO_BASE, - METHOD_MPUIO }, - { OMAP1610_GPIO1_BASE, NULL, INT_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_1610 }, - { OMAP1610_GPIO2_BASE, NULL, INT_1610_GPIO_BANK2, IH_GPIO_BASE + 16, - METHOD_GPIO_1610 }, - { OMAP1610_GPIO3_BASE, NULL, INT_1610_GPIO_BANK3, IH_GPIO_BASE + 32, - METHOD_GPIO_1610 }, - { OMAP1610_GPIO4_BASE, NULL, INT_1610_GPIO_BANK4, IH_GPIO_BASE + 48, - METHOD_GPIO_1610 }, -}; -#endif - -#ifdef CONFIG_ARCH_OMAP15XX -static struct gpio_bank gpio_bank_1510[2] = { - { OMAP1_MPUIO_VBASE, NULL, INT_MPUIO, IH_MPUIO_BASE, - METHOD_MPUIO }, - { OMAP1510_GPIO_BASE, NULL, INT_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_1510 } -}; -#endif - -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) -static struct gpio_bank gpio_bank_7xx[7] = { - { OMAP1_MPUIO_VBASE, NULL, INT_7XX_MPUIO, IH_MPUIO_BASE, - METHOD_MPUIO }, - { OMAP7XX_GPIO1_BASE, NULL, INT_7XX_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_7XX }, - { OMAP7XX_GPIO2_BASE, NULL, INT_7XX_GPIO_BANK2, IH_GPIO_BASE + 32, - METHOD_GPIO_7XX }, - { OMAP7XX_GPIO3_BASE, NULL, INT_7XX_GPIO_BANK3, IH_GPIO_BASE + 64, - METHOD_GPIO_7XX }, - { OMAP7XX_GPIO4_BASE, NULL, INT_7XX_GPIO_BANK4, IH_GPIO_BASE + 96, - METHOD_GPIO_7XX }, - { OMAP7XX_GPIO5_BASE, NULL, INT_7XX_GPIO_BANK5, IH_GPIO_BASE + 128, - METHOD_GPIO_7XX }, - { OMAP7XX_GPIO6_BASE, NULL, INT_7XX_GPIO_BANK6, IH_GPIO_BASE + 160, - METHOD_GPIO_7XX }, -}; -#endif - -#ifdef CONFIG_ARCH_OMAP2 - -static struct gpio_bank gpio_bank_242x[4] = { - { OMAP242X_GPIO1_BASE, NULL, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_24XX }, - { OMAP242X_GPIO2_BASE, NULL, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, - METHOD_GPIO_24XX }, - { OMAP242X_GPIO3_BASE, NULL, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, - METHOD_GPIO_24XX }, - { OMAP242X_GPIO4_BASE, NULL, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, - METHOD_GPIO_24XX }, -}; - -static struct gpio_bank gpio_bank_243x[5] = { - { OMAP243X_GPIO1_BASE, NULL, INT_24XX_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_24XX }, - { OMAP243X_GPIO2_BASE, NULL, INT_24XX_GPIO_BANK2, IH_GPIO_BASE + 32, - METHOD_GPIO_24XX }, - { OMAP243X_GPIO3_BASE, NULL, INT_24XX_GPIO_BANK3, IH_GPIO_BASE + 64, - METHOD_GPIO_24XX }, - { OMAP243X_GPIO4_BASE, NULL, INT_24XX_GPIO_BANK4, IH_GPIO_BASE + 96, - METHOD_GPIO_24XX }, - { OMAP243X_GPIO5_BASE, NULL, INT_24XX_GPIO_BANK5, IH_GPIO_BASE + 128, - METHOD_GPIO_24XX }, -}; - -#endif - #ifdef CONFIG_ARCH_OMAP3 -static struct gpio_bank gpio_bank_34xx[6] = { - { OMAP34XX_GPIO1_BASE, NULL, INT_34XX_GPIO_BANK1, IH_GPIO_BASE, - METHOD_GPIO_24XX }, - { OMAP34XX_GPIO2_BASE, NULL, INT_34XX_GPIO_BANK2, IH_GPIO_BASE + 32, - METHOD_GPIO_24XX }, - { OMAP34XX_GPIO3_BASE, NULL, INT_34XX_GPIO_BANK3, IH_GPIO_BASE + 64, - METHOD_GPIO_24XX }, - { OMAP34XX_GPIO4_BASE, NULL, INT_34XX_GPIO_BANK4, IH_GPIO_BASE + 96, - METHOD_GPIO_24XX }, - { OMAP34XX_GPIO5_BASE, NULL, INT_34XX_GPIO_BANK5, IH_GPIO_BASE + 128, - METHOD_GPIO_24XX }, - { OMAP34XX_GPIO6_BASE, NULL, INT_34XX_GPIO_BANK6, IH_GPIO_BASE + 160, - METHOD_GPIO_24XX }, -}; - struct omap3_gpio_regs { - u32 sysconfig; u32 irqenable1; u32 irqenable2; u32 wake_en; @@ -318,26 +179,16 @@ struct omap3_gpio_regs { static struct omap3_gpio_regs gpio_context[OMAP34XX_NR_GPIOS]; #endif -#ifdef CONFIG_ARCH_OMAP4 -static struct gpio_bank gpio_bank_44xx[6] = { - { OMAP44XX_GPIO1_BASE, NULL, OMAP44XX_IRQ_GPIO1, IH_GPIO_BASE, - METHOD_GPIO_44XX }, - { OMAP44XX_GPIO2_BASE, NULL, OMAP44XX_IRQ_GPIO2, IH_GPIO_BASE + 32, - METHOD_GPIO_44XX }, - { OMAP44XX_GPIO3_BASE, NULL, OMAP44XX_IRQ_GPIO3, IH_GPIO_BASE + 64, - METHOD_GPIO_44XX }, - { OMAP44XX_GPIO4_BASE, NULL, OMAP44XX_IRQ_GPIO4, IH_GPIO_BASE + 96, - METHOD_GPIO_44XX }, - { OMAP44XX_GPIO5_BASE, NULL, OMAP44XX_IRQ_GPIO5, IH_GPIO_BASE + 128, - METHOD_GPIO_44XX }, - { OMAP44XX_GPIO6_BASE, NULL, OMAP44XX_IRQ_GPIO6, IH_GPIO_BASE + 160, - METHOD_GPIO_44XX }, -}; +/* + * TODO: Cleanup gpio_bank usage as it is having information + * related to all instances of the device + */ +static struct gpio_bank *gpio_bank; -#endif +static int bank_width; -static struct gpio_bank *gpio_bank; -static int gpio_bank_count; +/* TODO: Analyze removing gpio_bank_count usage from driver code */ +int gpio_bank_count; static inline struct gpio_bank *get_gpio_bank(int gpio) { @@ -417,7 +268,7 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input) switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_IO_CNTL; + reg += OMAP_MPUIO_IO_CNTL / bank->stride; break; #endif #ifdef CONFIG_ARCH_OMAP15XX @@ -465,7 +316,7 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_OUTPUT; + reg += OMAP_MPUIO_OUTPUT / bank->stride; l = __raw_readl(reg); if (enable) l |= 1 << gpio; @@ -537,7 +388,7 @@ static int _get_gpio_datain(struct gpio_bank *bank, int gpio) switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_INPUT_LATCH; + reg += OMAP_MPUIO_INPUT_LATCH / bank->stride; break; #endif #ifdef CONFIG_ARCH_OMAP15XX @@ -583,7 +434,7 @@ static int _get_gpio_dataout(struct gpio_bank *bank, int gpio) switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_OUTPUT; + reg += OMAP_MPUIO_OUTPUT / bank->stride; break; #endif #ifdef CONFIG_ARCH_OMAP15XX @@ -642,6 +493,9 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, u32 val; u32 l; + if (!bank->dbck_flag) + return; + if (debounce < 32) debounce = 0x01; else if (debounce > 7936) @@ -651,7 +505,7 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, l = 1 << get_gpio_index(gpio); - if (cpu_is_omap44xx()) + if (bank->method == METHOD_GPIO_44XX) reg += OMAP4_GPIO_DEBOUNCINGTIME; else reg += OMAP24XX_GPIO_DEBOUNCE_VAL; @@ -659,7 +513,7 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, __raw_writel(debounce, reg); reg = bank->base; - if (cpu_is_omap44xx()) + if (bank->method == METHOD_GPIO_44XX) reg += OMAP4_GPIO_DEBOUNCENABLE; else reg += OMAP24XX_GPIO_DEBOUNCE_EN; @@ -668,12 +522,10 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, if (debounce) { val |= l; - if (cpu_is_omap34xx() || cpu_is_omap44xx()) - clk_enable(bank->dbck); + clk_enable(bank->dbck); } else { val &= ~l; - if (cpu_is_omap34xx() || cpu_is_omap44xx()) - clk_disable(bank->dbck); + clk_disable(bank->dbck); } bank->dbck_enable_mask = val; @@ -769,7 +621,7 @@ static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio) switch (bank->method) { case METHOD_MPUIO: - reg += OMAP_MPUIO_GPIO_INT_EDGE; + reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride; break; #ifdef CONFIG_ARCH_OMAP15XX case METHOD_GPIO_1510: @@ -803,7 +655,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_GPIO_INT_EDGE; + reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride; l = __raw_readl(reg); if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) bank->toggle_mask |= 1 << gpio; @@ -989,7 +841,7 @@ static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank) switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_GPIO_MASKIT; + reg += OMAP_MPUIO_GPIO_MASKIT / bank->stride; mask = 0xffff; inv = 1; break; @@ -1046,7 +898,7 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab switch (bank->method) { #ifdef CONFIG_ARCH_OMAP1 case METHOD_MPUIO: - reg += OMAP_MPUIO_GPIO_MASKIT; + reg += OMAP_MPUIO_GPIO_MASKIT / bank->stride; l = __raw_readl(reg); if (enable) l &= ~(gpio_mask); @@ -1296,7 +1148,8 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) bank = get_irq_data(irq); #ifdef CONFIG_ARCH_OMAP1 if (bank->method == METHOD_MPUIO) - isr_reg = bank->base + OMAP_MPUIO_GPIO_INT; + isr_reg = bank->base + + OMAP_MPUIO_GPIO_INT / bank->stride; #endif #ifdef CONFIG_ARCH_OMAP15XX if (bank->method == METHOD_GPIO_1510) @@ -1318,6 +1171,10 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) if (bank->method == METHOD_GPIO_44XX) isr_reg = bank->base + OMAP4_GPIO_IRQSTATUS0; #endif + + if (WARN_ON(!isr_reg)) + goto exit; + while(1) { u32 isr_saved, level_mask = 0; u32 enabled; @@ -1377,6 +1234,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) configured, we must unmask the bank interrupt only after handler(s) are executed in order to avoid spurious bank interrupt */ +exit: if (!unmasked) desc->chip->unmask(irq); @@ -1489,7 +1347,8 @@ static int omap_mpuio_suspend_noirq(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct gpio_bank *bank = platform_get_drvdata(pdev); - void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; + void __iomem *mask_reg = bank->base + + OMAP_MPUIO_GPIO_MASKIT / bank->stride; unsigned long flags; spin_lock_irqsave(&bank->lock, flags); @@ -1504,7 +1363,8 @@ static int omap_mpuio_resume_noirq(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct gpio_bank *bank = platform_get_drvdata(pdev); - void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT; + void __iomem *mask_reg = bank->base + + OMAP_MPUIO_GPIO_MASKIT / bank->stride; unsigned long flags; spin_lock_irqsave(&bank->lock, flags); @@ -1540,7 +1400,8 @@ static struct platform_device omap_mpuio_device = { static inline void mpuio_init(void) { - platform_set_drvdata(&omap_mpuio_device, &gpio_bank_1610[0]); + struct gpio_bank *bank = get_gpio_bank(OMAP_MPUIO(0)); + platform_set_drvdata(&omap_mpuio_device, bank); if (platform_driver_register(&omap_mpuio_driver) == 0) (void) platform_device_register(&omap_mpuio_device); @@ -1583,7 +1444,7 @@ static int gpio_is_input(struct gpio_bank *bank, int mask) switch (bank->method) { case METHOD_MPUIO: - reg += OMAP_MPUIO_IO_CNTL; + reg += OMAP_MPUIO_IO_CNTL / bank->stride; break; case METHOD_GPIO_1510: reg += OMAP1510_GPIO_DIR_CONTROL; @@ -1645,6 +1506,13 @@ static int gpio_debounce(struct gpio_chip *chip, unsigned offset, unsigned long flags; bank = container_of(chip, struct gpio_bank, chip); + + if (!bank->dbck) { + bank->dbck = clk_get(bank->dev, "dbclk"); + if (IS_ERR(bank->dbck)) + dev_err(bank->dev, "Could not get gpio dbck\n"); + } + spin_lock_irqsave(&bank->lock, flags); _set_gpio_debounce(bank, offset, debounce); spin_unlock_irqrestore(&bank->lock, flags); @@ -1673,34 +1541,16 @@ static int gpio_2irq(struct gpio_chip *chip, unsigned offset) /*---------------------------------------------------------------------*/ -static int initialized; -#if defined(CONFIG_ARCH_OMAP1) || defined(CONFIG_ARCH_OMAP2) -static struct clk * gpio_ick; -#endif - -#if defined(CONFIG_ARCH_OMAP2) -static struct clk * gpio_fck; -#endif - -#if defined(CONFIG_ARCH_OMAP2430) -static struct clk * gpio5_ick; -static struct clk * gpio5_fck; -#endif - -#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) -static struct clk *gpio_iclks[OMAP34XX_NR_GPIOS]; -#endif - -static void __init omap_gpio_show_rev(void) +static void __init omap_gpio_show_rev(struct gpio_bank *bank) { u32 rev; - if (cpu_is_omap16xx()) - rev = __raw_readw(gpio_bank[1].base + OMAP1610_GPIO_REVISION); + if (cpu_is_omap16xx() && !(bank->method != METHOD_MPUIO)) + rev = __raw_readw(bank->base + OMAP1610_GPIO_REVISION); else if (cpu_is_omap24xx() || cpu_is_omap34xx()) - rev = __raw_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION); + rev = __raw_readl(bank->base + OMAP24XX_GPIO_REVISION); else if (cpu_is_omap44xx()) - rev = __raw_readl(gpio_bank[0].base + OMAP4_GPIO_REVISION); + rev = __raw_readl(bank->base + OMAP4_GPIO_REVISION); else return; @@ -1713,250 +1563,190 @@ static void __init omap_gpio_show_rev(void) */ static struct lock_class_key gpio_lock_class; -static int __init _omap_gpio_init(void) +static inline int init_gpio_info(struct platform_device *pdev) { - int i; - int gpio = 0; - struct gpio_bank *bank; - int bank_size = SZ_8K; /* Module 4KB + L4 4KB except on omap1 */ - char clk_name[11]; - - initialized = 1; - -#if defined(CONFIG_ARCH_OMAP1) - if (cpu_is_omap15xx()) { - gpio_ick = clk_get(NULL, "arm_gpio_ck"); - if (IS_ERR(gpio_ick)) - printk("Could not get arm_gpio_ck\n"); - else - clk_enable(gpio_ick); + /* TODO: Analyze removing gpio_bank_count usage from driver code */ + gpio_bank = kzalloc(gpio_bank_count * sizeof(struct gpio_bank), + GFP_KERNEL); + if (!gpio_bank) { + dev_err(&pdev->dev, "Memory alloc failed for gpio_bank\n"); + return -ENOMEM; } -#endif -#if defined(CONFIG_ARCH_OMAP2) - if (cpu_class_is_omap2()) { - gpio_ick = clk_get(NULL, "gpios_ick"); - if (IS_ERR(gpio_ick)) - printk("Could not get gpios_ick\n"); - else - clk_enable(gpio_ick); - gpio_fck = clk_get(NULL, "gpios_fck"); - if (IS_ERR(gpio_fck)) - printk("Could not get gpios_fck\n"); - else - clk_enable(gpio_fck); + return 0; +} - /* - * On 2430 & 3430 GPIO 5 uses CORE L4 ICLK - */ -#if defined(CONFIG_ARCH_OMAP2430) - if (cpu_is_omap2430()) { - gpio5_ick = clk_get(NULL, "gpio5_ick"); - if (IS_ERR(gpio5_ick)) - printk("Could not get gpio5_ick\n"); - else - clk_enable(gpio5_ick); - gpio5_fck = clk_get(NULL, "gpio5_fck"); - if (IS_ERR(gpio5_fck)) - printk("Could not get gpio5_fck\n"); - else - clk_enable(gpio5_fck); +/* TODO: Cleanup cpu_is_* checks */ +static void omap_gpio_mod_init(struct gpio_bank *bank, int id) +{ + if (cpu_class_is_omap2()) { + if (cpu_is_omap44xx()) { + __raw_writel(0xffffffff, bank->base + + OMAP4_GPIO_IRQSTATUSCLR0); + __raw_writel(0x00000000, bank->base + + OMAP4_GPIO_DEBOUNCENABLE); + /* Initialize interface clk ungated, module enabled */ + __raw_writel(0, bank->base + OMAP4_GPIO_CTRL); + } else if (cpu_is_omap34xx()) { + __raw_writel(0x00000000, bank->base + + OMAP24XX_GPIO_IRQENABLE1); + __raw_writel(0xffffffff, bank->base + + OMAP24XX_GPIO_IRQSTATUS1); + __raw_writel(0x00000000, bank->base + + OMAP24XX_GPIO_DEBOUNCE_EN); + + /* Initialize interface clk ungated, module enabled */ + __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL); + } else if (cpu_is_omap24xx()) { + static const u32 non_wakeup_gpios[] = { + 0xe203ffc0, 0x08700040 + }; + if (id < ARRAY_SIZE(non_wakeup_gpios)) + bank->non_wakeup_gpios = non_wakeup_gpios[id]; } -#endif - } -#endif + } else if (cpu_class_is_omap1()) { + if (bank_is_mpuio(bank)) + __raw_writew(0xffff, bank->base + + OMAP_MPUIO_GPIO_MASKIT / bank->stride); + if (cpu_is_omap15xx() && bank->method == METHOD_GPIO_1510) { + __raw_writew(0xffff, bank->base + + OMAP1510_GPIO_INT_MASK); + __raw_writew(0x0000, bank->base + + OMAP1510_GPIO_INT_STATUS); + } + if (cpu_is_omap16xx() && bank->method == METHOD_GPIO_1610) { + __raw_writew(0x0000, bank->base + + OMAP1610_GPIO_IRQENABLE1); + __raw_writew(0xffff, bank->base + + OMAP1610_GPIO_IRQSTATUS1); + __raw_writew(0x0014, bank->base + + OMAP1610_GPIO_SYSCONFIG); -#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) - if (cpu_is_omap34xx() || cpu_is_omap44xx()) { - for (i = 0; i < OMAP34XX_NR_GPIOS; i++) { - sprintf(clk_name, "gpio%d_ick", i + 1); - gpio_iclks[i] = clk_get(NULL, clk_name); - if (IS_ERR(gpio_iclks[i])) - printk(KERN_ERR "Could not get %s\n", clk_name); - else - clk_enable(gpio_iclks[i]); + /* + * Enable system clock for GPIO module. + * The CAM_CLK_CTRL *is* really the right place. + */ + omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04, + ULPD_CAM_CLK_CTRL); + } + if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_7XX) { + __raw_writel(0xffffffff, bank->base + + OMAP7XX_GPIO_INT_MASK); + __raw_writel(0x00000000, bank->base + + OMAP7XX_GPIO_INT_STATUS); } } -#endif +} +static void __init omap_gpio_chip_init(struct gpio_bank *bank) +{ + int j; + static int gpio; -#ifdef CONFIG_ARCH_OMAP15XX - if (cpu_is_omap15xx()) { - gpio_bank_count = 2; - gpio_bank = gpio_bank_1510; - bank_size = SZ_2K; - } -#endif -#if defined(CONFIG_ARCH_OMAP16XX) - if (cpu_is_omap16xx()) { - gpio_bank_count = 5; - gpio_bank = gpio_bank_1610; - bank_size = SZ_2K; - } -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - if (cpu_is_omap7xx()) { - gpio_bank_count = 7; - gpio_bank = gpio_bank_7xx; - bank_size = SZ_2K; - } -#endif -#ifdef CONFIG_ARCH_OMAP2 - if (cpu_is_omap242x()) { - gpio_bank_count = 4; - gpio_bank = gpio_bank_242x; - } - if (cpu_is_omap243x()) { - gpio_bank_count = 5; - gpio_bank = gpio_bank_243x; - } + bank->mod_usage = 0; + /* + * REVISIT eventually switch from OMAP-specific gpio structs + * over to the generic ones + */ + bank->chip.request = omap_gpio_request; + bank->chip.free = omap_gpio_free; + bank->chip.direction_input = gpio_input; + bank->chip.get = gpio_get; + bank->chip.direction_output = gpio_output; + bank->chip.set_debounce = gpio_debounce; + bank->chip.set = gpio_set; + bank->chip.to_irq = gpio_2irq; + if (bank_is_mpuio(bank)) { + bank->chip.label = "mpuio"; +#ifdef CONFIG_ARCH_OMAP16XX + bank->chip.dev = &omap_mpuio_device.dev; #endif -#ifdef CONFIG_ARCH_OMAP3 - if (cpu_is_omap34xx()) { - gpio_bank_count = OMAP34XX_NR_GPIOS; - gpio_bank = gpio_bank_34xx; + bank->chip.base = OMAP_MPUIO(0); + } else { + bank->chip.label = "gpio"; + bank->chip.base = gpio; + gpio += bank_width; } -#endif -#ifdef CONFIG_ARCH_OMAP4 - if (cpu_is_omap44xx()) { - gpio_bank_count = OMAP34XX_NR_GPIOS; - gpio_bank = gpio_bank_44xx; + bank->chip.ngpio = bank_width; + + gpiochip_add(&bank->chip); + + for (j = bank->virtual_irq_start; + j < bank->virtual_irq_start + bank_width; j++) { + lockdep_set_class(&irq_desc[j].lock, &gpio_lock_class); + set_irq_chip_data(j, bank); + if (bank_is_mpuio(bank)) + set_irq_chip(j, &mpuio_irq_chip); + else + set_irq_chip(j, &gpio_irq_chip); + set_irq_handler(j, handle_simple_irq); + set_irq_flags(j, IRQF_VALID); } -#endif - for (i = 0; i < gpio_bank_count; i++) { - int j, gpio_count = 16; + set_irq_chained_handler(bank->irq, gpio_irq_handler); + set_irq_data(bank->irq, bank); +} + +static int __devinit omap_gpio_probe(struct platform_device *pdev) +{ + static int gpio_init_done; + struct omap_gpio_platform_data *pdata; + struct resource *res; + int id; + struct gpio_bank *bank; - bank = &gpio_bank[i]; - spin_lock_init(&bank->lock); + if (!pdev->dev.platform_data) + return -EINVAL; - /* Static mapping, never released */ - bank->base = ioremap(bank->pbase, bank_size); - if (!bank->base) { - printk(KERN_ERR "Could not ioremap gpio bank%i\n", i); - continue; - } + pdata = pdev->dev.platform_data; - if (bank_is_mpuio(bank)) - __raw_writew(0xffff, bank->base + OMAP_MPUIO_GPIO_MASKIT); - if (cpu_is_omap15xx() && bank->method == METHOD_GPIO_1510) { - __raw_writew(0xffff, bank->base + OMAP1510_GPIO_INT_MASK); - __raw_writew(0x0000, bank->base + OMAP1510_GPIO_INT_STATUS); - } - if (cpu_is_omap16xx() && bank->method == METHOD_GPIO_1610) { - __raw_writew(0x0000, bank->base + OMAP1610_GPIO_IRQENABLE1); - __raw_writew(0xffff, bank->base + OMAP1610_GPIO_IRQSTATUS1); - __raw_writew(0x0014, bank->base + OMAP1610_GPIO_SYSCONFIG); - } - if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_7XX) { - __raw_writel(0xffffffff, bank->base + OMAP7XX_GPIO_INT_MASK); - __raw_writel(0x00000000, bank->base + OMAP7XX_GPIO_INT_STATUS); + if (!gpio_init_done) { + int ret; - gpio_count = 32; /* 7xx has 32-bit GPIOs */ - } + ret = init_gpio_info(pdev); + if (ret) + return ret; + } -#ifdef CONFIG_ARCH_OMAP2PLUS - if ((bank->method == METHOD_GPIO_24XX) || - (bank->method == METHOD_GPIO_44XX)) { - static const u32 non_wakeup_gpios[] = { - 0xe203ffc0, 0x08700040 - }; + id = pdev->id; + bank = &gpio_bank[id]; - if (cpu_is_omap44xx()) { - __raw_writel(0xffffffff, bank->base + - OMAP4_GPIO_IRQSTATUSCLR0); - __raw_writew(0x0015, bank->base + - OMAP4_GPIO_SYSCONFIG); - __raw_writel(0x00000000, bank->base + - OMAP4_GPIO_DEBOUNCENABLE); - /* - * Initialize interface clock ungated, - * module enabled - */ - __raw_writel(0, bank->base + OMAP4_GPIO_CTRL); - } else { - __raw_writel(0x00000000, bank->base + - OMAP24XX_GPIO_IRQENABLE1); - __raw_writel(0xffffffff, bank->base + - OMAP24XX_GPIO_IRQSTATUS1); - __raw_writew(0x0015, bank->base + - OMAP24XX_GPIO_SYSCONFIG); - __raw_writel(0x00000000, bank->base + - OMAP24XX_GPIO_DEBOUNCE_EN); - - /* - * Initialize interface clock ungated, - * module enabled - */ - __raw_writel(0, bank->base + - OMAP24XX_GPIO_CTRL); - } - if (cpu_is_omap24xx() && - i < ARRAY_SIZE(non_wakeup_gpios)) - bank->non_wakeup_gpios = non_wakeup_gpios[i]; - gpio_count = 32; - } -#endif + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (unlikely(!res)) { + dev_err(&pdev->dev, "GPIO Bank %i Invalid IRQ resource\n", id); + return -ENODEV; + } - bank->mod_usage = 0; - /* REVISIT eventually switch from OMAP-specific gpio structs - * over to the generic ones - */ - bank->chip.request = omap_gpio_request; - bank->chip.free = omap_gpio_free; - bank->chip.direction_input = gpio_input; - bank->chip.get = gpio_get; - bank->chip.direction_output = gpio_output; - bank->chip.set_debounce = gpio_debounce; - bank->chip.set = gpio_set; - bank->chip.to_irq = gpio_2irq; - if (bank_is_mpuio(bank)) { - bank->chip.label = "mpuio"; -#ifdef CONFIG_ARCH_OMAP16XX - bank->chip.dev = &omap_mpuio_device.dev; -#endif - bank->chip.base = OMAP_MPUIO(0); - } else { - bank->chip.label = "gpio"; - bank->chip.base = gpio; - gpio += gpio_count; - } - bank->chip.ngpio = gpio_count; + bank->irq = res->start; + bank->virtual_irq_start = pdata->virtual_irq_start; + bank->method = pdata->bank_type; + bank->dev = &pdev->dev; + bank->dbck_flag = pdata->dbck_flag; + bank->stride = pdata->bank_stride; + bank_width = pdata->bank_width; - gpiochip_add(&bank->chip); + spin_lock_init(&bank->lock); - for (j = bank->virtual_irq_start; - j < bank->virtual_irq_start + gpio_count; j++) { - lockdep_set_class(&irq_desc[j].lock, &gpio_lock_class); - set_irq_chip_data(j, bank); - if (bank_is_mpuio(bank)) - set_irq_chip(j, &mpuio_irq_chip); - else - set_irq_chip(j, &gpio_irq_chip); - set_irq_handler(j, handle_simple_irq); - set_irq_flags(j, IRQF_VALID); - } - set_irq_chained_handler(bank->irq, gpio_irq_handler); - set_irq_data(bank->irq, bank); - - if (cpu_is_omap34xx() || cpu_is_omap44xx()) { - sprintf(clk_name, "gpio%d_dbck", i + 1); - bank->dbck = clk_get(NULL, clk_name); - if (IS_ERR(bank->dbck)) - printk(KERN_ERR "Could not get %s\n", clk_name); - } + /* Static mapping, never released */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (unlikely(!res)) { + dev_err(&pdev->dev, "GPIO Bank %i Invalid mem resource\n", id); + return -ENODEV; } - /* Enable system clock for GPIO module. - * The CAM_CLK_CTRL *is* really the right place. */ - if (cpu_is_omap16xx()) - omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04, ULPD_CAM_CLK_CTRL); + bank->base = ioremap(res->start, resource_size(res)); + if (!bank->base) { + dev_err(&pdev->dev, "Could not ioremap gpio bank%i\n", id); + return -ENOMEM; + } - /* Enable autoidle for the OCP interface */ - if (cpu_is_omap24xx()) - omap_writel(1 << 0, 0x48019010); - if (cpu_is_omap34xx()) - omap_writel(1 << 0, 0x48306814); + pm_runtime_enable(bank->dev); + pm_runtime_get_sync(bank->dev); + + omap_gpio_mod_init(bank, id); + omap_gpio_chip_init(bank); + omap_gpio_show_rev(bank); - omap_gpio_show_rev(); + if (!gpio_init_done) + gpio_init_done = 1; return 0; } @@ -2251,8 +2041,6 @@ void omap_gpio_save_context(void) /* saving banks from 2-6 only since GPIO1 is in WKUP */ for (i = 1; i < gpio_bank_count; i++) { struct gpio_bank *bank = &gpio_bank[i]; - gpio_context[i].sysconfig = - __raw_readl(bank->base + OMAP24XX_GPIO_SYSCONFIG); gpio_context[i].irqenable1 = __raw_readl(bank->base + OMAP24XX_GPIO_IRQENABLE1); gpio_context[i].irqenable2 = @@ -2283,8 +2071,6 @@ void omap_gpio_restore_context(void) for (i = 1; i < gpio_bank_count; i++) { struct gpio_bank *bank = &gpio_bank[i]; - __raw_writel(gpio_context[i].sysconfig, - bank->base + OMAP24XX_GPIO_SYSCONFIG); __raw_writel(gpio_context[i].irqenable1, bank->base + OMAP24XX_GPIO_IRQENABLE1); __raw_writel(gpio_context[i].irqenable2, @@ -2309,25 +2095,28 @@ void omap_gpio_restore_context(void) } #endif +static struct platform_driver omap_gpio_driver = { + .probe = omap_gpio_probe, + .driver = { + .name = "omap_gpio", + }, +}; + /* - * This may get called early from board specific init - * for boards that have interrupts routed via FPGA. + * gpio driver register needs to be done before + * machine_init functions access gpio APIs. + * Hence omap_gpio_drv_reg() is a postcore_initcall. */ -int __init omap_gpio_init(void) +static int __init omap_gpio_drv_reg(void) { - if (!initialized) - return _omap_gpio_init(); - else - return 0; + return platform_driver_register(&omap_gpio_driver); } +postcore_initcall(omap_gpio_drv_reg); static int __init omap_gpio_sysinit(void) { int ret = 0; - if (!initialized) - ret = _omap_gpio_init(); - mpuio_init(); #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS) diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c index a5ce4f0aad35..a4f8003de664 100644 --- a/arch/arm/plat-omap/i2c.c +++ b/arch/arm/plat-omap/i2c.c @@ -27,20 +27,20 @@ #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/i2c-omap.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/clk.h> #include <mach/irqs.h> #include <plat/mux.h> #include <plat/i2c.h> #include <plat/omap-pm.h> +#include <plat/omap_device.h> #define OMAP_I2C_SIZE 0x3f #define OMAP1_I2C_BASE 0xfffb3800 -#define OMAP2_I2C_BASE1 0x48070000 -#define OMAP2_I2C_BASE2 0x48072000 -#define OMAP2_I2C_BASE3 0x48060000 -#define OMAP4_I2C_BASE4 0x48350000 -static const char name[] = "i2c_omap"; +static const char name[] = "omap_i2c"; #define I2C_RESOURCE_BUILDER(base, irq) \ { \ @@ -55,15 +55,6 @@ static const char name[] = "i2c_omap"; static struct resource i2c_resources[][2] = { { I2C_RESOURCE_BUILDER(0, 0) }, -#if defined(CONFIG_ARCH_OMAP2PLUS) - { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE2, 0) }, -#endif -#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) - { I2C_RESOURCE_BUILDER(OMAP2_I2C_BASE3, 0) }, -#endif -#if defined(CONFIG_ARCH_OMAP4) - { I2C_RESOURCE_BUILDER(OMAP4_I2C_BASE4, 0) }, -#endif }; #define I2C_DEV_BUILDER(bus_id, res, data) \ @@ -77,18 +68,11 @@ static struct resource i2c_resources[][2] = { }, \ } -static struct omap_i2c_bus_platform_data i2c_pdata[ARRAY_SIZE(i2c_resources)]; +#define MAX_OMAP_I2C_HWMOD_NAME_LEN 16 +#define OMAP_I2C_MAX_CONTROLLERS 4 +static struct omap_i2c_bus_platform_data i2c_pdata[OMAP_I2C_MAX_CONTROLLERS]; static struct platform_device omap_i2c_devices[] = { I2C_DEV_BUILDER(1, i2c_resources[0], &i2c_pdata[0]), -#if defined(CONFIG_ARCH_OMAP2PLUS) - I2C_DEV_BUILDER(2, i2c_resources[1], &i2c_pdata[1]), -#endif -#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) - I2C_DEV_BUILDER(3, i2c_resources[2], &i2c_pdata[2]), -#endif -#if defined(CONFIG_ARCH_OMAP4) - I2C_DEV_BUILDER(4, i2c_resources[3], &i2c_pdata[3]), -#endif }; #define OMAP_I2C_CMDLINE_SETUP (BIT(31)) @@ -109,35 +93,25 @@ static int __init omap_i2c_nr_ports(void) return ports; } -/* Shared between omap2 and 3 */ -static resource_size_t omap2_i2c_irq[3] __initdata = { - INT_24XX_I2C1_IRQ, - INT_24XX_I2C2_IRQ, - INT_34XX_I2C3_IRQ, -}; - -static resource_size_t omap4_i2c_irq[4] __initdata = { - OMAP44XX_IRQ_I2C1, - OMAP44XX_IRQ_I2C2, - OMAP44XX_IRQ_I2C3, - OMAP44XX_IRQ_I2C4, -}; - -static inline int omap1_i2c_add_bus(struct platform_device *pdev, int bus_id) +static inline int omap1_i2c_add_bus(int bus_id) { - struct omap_i2c_bus_platform_data *pd; + struct platform_device *pdev; + struct omap_i2c_bus_platform_data *pdata; struct resource *res; - pd = pdev->dev.platform_data; + omap1_i2c_mux_pins(bus_id); + + pdev = &omap_i2c_devices[bus_id - 1]; res = pdev->resource; res[0].start = OMAP1_I2C_BASE; res[0].end = res[0].start + OMAP_I2C_SIZE; res[1].start = INT_I2C; - omap1_i2c_mux_pins(bus_id); + pdata = &i2c_pdata[bus_id - 1]; return platform_device_register(pdev); } + /* * XXX This function is a temporary compatibility wrapper - only * needed until the I2C driver can be converted to call @@ -148,52 +122,64 @@ static void omap_pm_set_max_mpu_wakeup_lat_compat(struct device *dev, long t) omap_pm_set_max_mpu_wakeup_lat(dev, t); } -static inline int omap2_i2c_add_bus(struct platform_device *pdev, int bus_id) -{ - struct resource *res; - resource_size_t *irq; +static struct omap_device_pm_latency omap_i2c_latency[] = { + [0] = { + .deactivate_func = omap_device_idle_hwmods, + .activate_func = omap_device_enable_hwmods, + .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST, + }, +}; - res = pdev->resource; +#ifdef CONFIG_ARCH_OMAP2PLUS +static inline int omap2_i2c_add_bus(int bus_id) +{ + int l; + struct omap_hwmod *oh; + struct omap_device *od; + char oh_name[MAX_OMAP_I2C_HWMOD_NAME_LEN]; + struct omap_i2c_bus_platform_data *pdata; - if (!cpu_is_omap44xx()) - irq = omap2_i2c_irq; - else - irq = omap4_i2c_irq; + omap2_i2c_mux_pins(bus_id); - if (bus_id == 1) { - res[0].start = OMAP2_I2C_BASE1; - res[0].end = res[0].start + OMAP_I2C_SIZE; + l = snprintf(oh_name, MAX_OMAP_I2C_HWMOD_NAME_LEN, "i2c%d", bus_id); + WARN(l >= MAX_OMAP_I2C_HWMOD_NAME_LEN, + "String buffer overflow in I2C%d device setup\n", bus_id); + oh = omap_hwmod_lookup(oh_name); + if (!oh) { + pr_err("Could not look up %s\n", oh_name); + return -EEXIST; } - res[1].start = irq[bus_id - 1]; - omap2_i2c_mux_pins(bus_id); - + pdata = &i2c_pdata[bus_id - 1]; /* * When waiting for completion of a i2c transfer, we need to * set a wake up latency constraint for the MPU. This is to * ensure quick enough wakeup from idle, when transfer * completes. + * Only omap3 has support for constraints */ - if (cpu_is_omap34xx()) { - struct omap_i2c_bus_platform_data *pd; - - pd = pdev->dev.platform_data; - pd->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat; - } - - return platform_device_register(pdev); + if (cpu_is_omap34xx()) + pdata->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat; + od = omap_device_build(name, bus_id, oh, pdata, + sizeof(struct omap_i2c_bus_platform_data), + omap_i2c_latency, ARRAY_SIZE(omap_i2c_latency), 0); + WARN(IS_ERR(od), "Could not build omap_device for %s\n", name); + + return PTR_ERR(od); } +#else +static inline int omap2_i2c_add_bus(int bus_id) +{ + return 0; +} +#endif static int __init omap_i2c_add_bus(int bus_id) { - struct platform_device *pdev; - - pdev = &omap_i2c_devices[bus_id - 1]; - if (cpu_class_is_omap1()) - return omap1_i2c_add_bus(pdev, bus_id); + return omap1_i2c_add_bus(bus_id); else - return omap2_i2c_add_bus(pdev, bus_id); + return omap2_i2c_add_bus(bus_id); } /** diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h index 0cce4ca83aa0..d1c916fcf770 100644 --- a/arch/arm/plat-omap/include/plat/dma.h +++ b/arch/arm/plat-omap/include/plat/dma.h @@ -21,141 +21,15 @@ #ifndef __ASM_ARCH_DMA_H #define __ASM_ARCH_DMA_H -/* Move omap4 specific defines to dma-44xx.h */ -#include "dma-44xx.h" +#include <linux/platform_device.h> -/* Hardware registers for omap1 */ -#define OMAP1_DMA_BASE (0xfffed800) - -#define OMAP1_DMA_GCR 0x400 -#define OMAP1_DMA_GSCR 0x404 -#define OMAP1_DMA_GRST 0x408 -#define OMAP1_DMA_HW_ID 0x442 -#define OMAP1_DMA_PCH2_ID 0x444 -#define OMAP1_DMA_PCH0_ID 0x446 -#define OMAP1_DMA_PCH1_ID 0x448 -#define OMAP1_DMA_PCHG_ID 0x44a -#define OMAP1_DMA_PCHD_ID 0x44c -#define OMAP1_DMA_CAPS_0_U 0x44e -#define OMAP1_DMA_CAPS_0_L 0x450 -#define OMAP1_DMA_CAPS_1_U 0x452 -#define OMAP1_DMA_CAPS_1_L 0x454 -#define OMAP1_DMA_CAPS_2 0x456 -#define OMAP1_DMA_CAPS_3 0x458 -#define OMAP1_DMA_CAPS_4 0x45a -#define OMAP1_DMA_PCH2_SR 0x460 -#define OMAP1_DMA_PCH0_SR 0x480 -#define OMAP1_DMA_PCH1_SR 0x482 -#define OMAP1_DMA_PCHD_SR 0x4c0 - -/* Hardware registers for omap2 and omap3 */ -#define OMAP24XX_DMA4_BASE (L4_24XX_BASE + 0x56000) -#define OMAP34XX_DMA4_BASE (L4_34XX_BASE + 0x56000) -#define OMAP44XX_DMA4_BASE (L4_44XX_BASE + 0x56000) - -#define OMAP_DMA4_REVISION 0x00 -#define OMAP_DMA4_GCR 0x78 -#define OMAP_DMA4_IRQSTATUS_L0 0x08 -#define OMAP_DMA4_IRQSTATUS_L1 0x0c -#define OMAP_DMA4_IRQSTATUS_L2 0x10 -#define OMAP_DMA4_IRQSTATUS_L3 0x14 -#define OMAP_DMA4_IRQENABLE_L0 0x18 -#define OMAP_DMA4_IRQENABLE_L1 0x1c -#define OMAP_DMA4_IRQENABLE_L2 0x20 -#define OMAP_DMA4_IRQENABLE_L3 0x24 -#define OMAP_DMA4_SYSSTATUS 0x28 -#define OMAP_DMA4_OCP_SYSCONFIG 0x2c -#define OMAP_DMA4_CAPS_0 0x64 -#define OMAP_DMA4_CAPS_2 0x6c -#define OMAP_DMA4_CAPS_3 0x70 -#define OMAP_DMA4_CAPS_4 0x74 - -#define OMAP1_LOGICAL_DMA_CH_COUNT 17 -#define OMAP_DMA4_LOGICAL_DMA_CH_COUNT 32 /* REVISIT: Is this 32 + 2? */ - -/* Common channel specific registers for omap1 */ -#define OMAP1_DMA_CH_BASE(n) (0x40 * (n) + 0x00) -#define OMAP1_DMA_CSDP(n) (0x40 * (n) + 0x00) -#define OMAP1_DMA_CCR(n) (0x40 * (n) + 0x02) -#define OMAP1_DMA_CICR(n) (0x40 * (n) + 0x04) -#define OMAP1_DMA_CSR(n) (0x40 * (n) + 0x06) -#define OMAP1_DMA_CEN(n) (0x40 * (n) + 0x10) -#define OMAP1_DMA_CFN(n) (0x40 * (n) + 0x12) -#define OMAP1_DMA_CSFI(n) (0x40 * (n) + 0x14) -#define OMAP1_DMA_CSEI(n) (0x40 * (n) + 0x16) -#define OMAP1_DMA_CPC(n) (0x40 * (n) + 0x18) /* 15xx only */ -#define OMAP1_DMA_CSAC(n) (0x40 * (n) + 0x18) -#define OMAP1_DMA_CDAC(n) (0x40 * (n) + 0x1a) -#define OMAP1_DMA_CDEI(n) (0x40 * (n) + 0x1c) -#define OMAP1_DMA_CDFI(n) (0x40 * (n) + 0x1e) -#define OMAP1_DMA_CLNK_CTRL(n) (0x40 * (n) + 0x28) - -/* Common channel specific registers for omap2 */ -#define OMAP_DMA4_CH_BASE(n) (0x60 * (n) + 0x80) -#define OMAP_DMA4_CCR(n) (0x60 * (n) + 0x80) -#define OMAP_DMA4_CLNK_CTRL(n) (0x60 * (n) + 0x84) -#define OMAP_DMA4_CICR(n) (0x60 * (n) + 0x88) -#define OMAP_DMA4_CSR(n) (0x60 * (n) + 0x8c) -#define OMAP_DMA4_CSDP(n) (0x60 * (n) + 0x90) -#define OMAP_DMA4_CEN(n) (0x60 * (n) + 0x94) -#define OMAP_DMA4_CFN(n) (0x60 * (n) + 0x98) -#define OMAP_DMA4_CSEI(n) (0x60 * (n) + 0xa4) -#define OMAP_DMA4_CSFI(n) (0x60 * (n) + 0xa8) -#define OMAP_DMA4_CDEI(n) (0x60 * (n) + 0xac) -#define OMAP_DMA4_CDFI(n) (0x60 * (n) + 0xb0) -#define OMAP_DMA4_CSAC(n) (0x60 * (n) + 0xb4) -#define OMAP_DMA4_CDAC(n) (0x60 * (n) + 0xb8) - -/* Channel specific registers only on omap1 */ -#define OMAP1_DMA_CSSA_L(n) (0x40 * (n) + 0x08) -#define OMAP1_DMA_CSSA_U(n) (0x40 * (n) + 0x0a) -#define OMAP1_DMA_CDSA_L(n) (0x40 * (n) + 0x0c) -#define OMAP1_DMA_CDSA_U(n) (0x40 * (n) + 0x0e) -#define OMAP1_DMA_COLOR_L(n) (0x40 * (n) + 0x20) -#define OMAP1_DMA_COLOR_U(n) (0x40 * (n) + 0x22) -#define OMAP1_DMA_CCR2(n) (0x40 * (n) + 0x24) -#define OMAP1_DMA_LCH_CTRL(n) (0x40 * (n) + 0x2a) /* not on 15xx */ -#define OMAP1_DMA_CCEN(n) 0 -#define OMAP1_DMA_CCFN(n) 0 - -/* Channel specific registers only on omap2 */ -#define OMAP_DMA4_CSSA(n) (0x60 * (n) + 0x9c) -#define OMAP_DMA4_CDSA(n) (0x60 * (n) + 0xa0) -#define OMAP_DMA4_CCEN(n) (0x60 * (n) + 0xbc) -#define OMAP_DMA4_CCFN(n) (0x60 * (n) + 0xc0) -#define OMAP_DMA4_COLOR(n) (0x60 * (n) + 0xc4) - -/* Additional registers available on OMAP4 */ -#define OMAP_DMA4_CDP(n) (0x60 * (n) + 0xd0) -#define OMAP_DMA4_CNDP(n) (0x60 * (n) + 0xd4) -#define OMAP_DMA4_CCDN(n) (0x60 * (n) + 0xd8) - -/* Dummy defines to keep multi-omap compiles happy */ -#define OMAP1_DMA_REVISION 0 -#define OMAP1_DMA_IRQSTATUS_L0 0 -#define OMAP1_DMA_IRQENABLE_L0 0 -#define OMAP1_DMA_OCP_SYSCONFIG 0 -#define OMAP_DMA4_HW_ID 0 -#define OMAP_DMA4_CAPS_0_L 0 -#define OMAP_DMA4_CAPS_0_U 0 -#define OMAP_DMA4_CAPS_1_L 0 -#define OMAP_DMA4_CAPS_1_U 0 -#define OMAP_DMA4_GSCR 0 -#define OMAP_DMA4_CPC(n) 0 - -#define OMAP_DMA4_LCH_CTRL(n) 0 -#define OMAP_DMA4_COLOR_L(n) 0 -#define OMAP_DMA4_COLOR_U(n) 0 -#define OMAP_DMA4_CCR2(n) 0 -#define OMAP1_DMA_CSSA(n) 0 -#define OMAP1_DMA_CDSA(n) 0 -#define OMAP_DMA4_CSSA_L(n) 0 -#define OMAP_DMA4_CSSA_U(n) 0 -#define OMAP_DMA4_CDSA_L(n) 0 -#define OMAP_DMA4_CDSA_U(n) 0 -#define OMAP1_DMA_COLOR(n) 0 +/* + * TODO: These dma channel defines should go away once all + * the omap drivers hwmod adapted. + */ -/*----------------------------------------------------------------------------*/ +/* Move omap4 specific defines to dma-44xx.h */ +#include "dma-44xx.h" /* DMA channels for omap1 */ #define OMAP_DMA_NO_DEVICE 0 @@ -405,6 +279,63 @@ #define DMA_CH_PRIO_HIGH 0x1 #define DMA_CH_PRIO_LOW 0x0 /* Def */ +/* Errata handling */ +#define IS_DMA_ERRATA(id) (errata & (id)) +#define SET_DMA_ERRATA(id) (errata |= (id)) + +#define DMA_ERRATA_IFRAME_BUFFERING BIT(0x0) +#define DMA_ERRATA_PARALLEL_CHANNELS BIT(0x1) +#define DMA_ERRATA_i378 BIT(0x2) +#define DMA_ERRATA_i541 BIT(0x3) +#define DMA_ERRATA_i88 BIT(0x4) +#define DMA_ERRATA_3_3 BIT(0x5) +#define DMA_ROMCODE_BUG BIT(0x6) + +/* Attributes for OMAP DMA Contrller */ +#define DMA_LINKED_LCH BIT(0x0) +#define GLOBAL_PRIORITY BIT(0x1) +#define RESERVE_CHANNEL BIT(0x2) +#define IS_CSSA_32 BIT(0x3) +#define IS_CDSA_32 BIT(0x4) +#define IS_RW_PRIORITY BIT(0x5) +#define ENABLE_1510_MODE BIT(0x6) +#define SRC_PORT BIT(0x7) +#define DST_PORT BIT(0x8) +#define SRC_INDEX BIT(0x9) +#define DST_INDEX BIT(0xA) +#define IS_BURST_ONLY4 BIT(0xB) +#define CLEAR_CSR_ON_READ BIT(0xC) +#define IS_WORD_16 BIT(0xD) + +enum omap_reg_offsets { + +GCR, GSCR, GRST1, HW_ID, +PCH2_ID, PCH0_ID, PCH1_ID, PCHG_ID, +PCHD_ID, CAPS_0, CAPS_1, CAPS_2, +CAPS_3, CAPS_4, PCH2_SR, PCH0_SR, +PCH1_SR, PCHD_SR, REVISION, IRQSTATUS_L0, +IRQSTATUS_L1, IRQSTATUS_L2, IRQSTATUS_L3, IRQENABLE_L0, +IRQENABLE_L1, IRQENABLE_L2, IRQENABLE_L3, SYSSTATUS, +OCP_SYSCONFIG, + +/* omap1+ specific */ +CPC, CCR2, LCH_CTRL, + +/* Common registers for all omap's */ +CSDP, CCR, CICR, CSR, +CEN, CFN, CSFI, CSEI, +CSAC, CDAC, CDEI, +CDFI, CLNK_CTRL, + +/* Channel specific registers */ +CSSA, CDSA, COLOR, +CCEN, CCFN, + +/* omap3630 and omap4 specific */ +CDP, CNDP, CCDN, + +}; + enum omap_dma_burst_mode { OMAP_DMA_DATA_BURST_DIS = 0, OMAP_DMA_DATA_BURST_4, @@ -470,6 +401,41 @@ struct omap_dma_channel_params { #endif }; +struct omap_dma_lch { + int next_lch; + int dev_id; + u16 saved_csr; + u16 enabled_irqs; + const char *dev_name; + void (*callback)(int lch, u16 ch_status, void *data); + void *data; + long flags; + /* required for Dynamic chaining */ + int prev_linked_ch; + int next_linked_ch; + int state; + int chain_id; + int status; +}; + +struct omap_dma_dev_attr { + u32 dev_caps; + u16 lch_count; + u16 chan_count; + struct omap_dma_lch *chan; +}; + +/* System DMA platform data structure */ +struct omap_system_dma_plat_info { + struct omap_dma_dev_attr *dma_attr; + u32 errata; + void (*disable_irq_lch)(int lch); + void (*show_dma_caps)(void); + void (*clear_lch_regs)(int lch); + void (*clear_dma)(int lch); + void (*dma_write)(u32 val, int reg, int lch); + u32 (*dma_read)(int reg, int lch); +}; extern void omap_set_dma_priority(int lch, int dst_port, int priority); extern int omap_request_dma(int dev_id, const char *dev_name, diff --git a/arch/arm/plat-omap/include/plat/fpga.h b/arch/arm/plat-omap/include/plat/fpga.h index f1864a652f7a..ae39bcb3f5ba 100644 --- a/arch/arm/plat-omap/include/plat/fpga.h +++ b/arch/arm/plat-omap/include/plat/fpga.h @@ -19,11 +19,7 @@ #ifndef __ASM_ARCH_OMAP_FPGA_H #define __ASM_ARCH_OMAP_FPGA_H -#if defined(CONFIG_MACH_OMAP_INNOVATOR) && defined(CONFIG_ARCH_OMAP15XX) extern void omap1510_fpga_init_irq(void); -#else -#define omap1510_fpga_init_irq() (0) -#endif #define fpga_read(reg) __raw_readb(reg) #define fpga_write(val, reg) __raw_writeb(val, reg) diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h index de1c604962eb..41ff2f8943f0 100644 --- a/arch/arm/plat-omap/include/plat/gpio.h +++ b/arch/arm/plat-omap/include/plat/gpio.h @@ -27,26 +27,15 @@ #define __ASM_ARCH_OMAP_GPIO_H #include <linux/io.h> +#include <linux/platform_device.h> #include <mach/irqs.h> #define OMAP1_MPUIO_BASE 0xfffb5000 -#if (defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)) - -#define OMAP_MPUIO_INPUT_LATCH 0x00 -#define OMAP_MPUIO_OUTPUT 0x02 -#define OMAP_MPUIO_IO_CNTL 0x04 -#define OMAP_MPUIO_KBR_LATCH 0x08 -#define OMAP_MPUIO_KBC 0x0a -#define OMAP_MPUIO_GPIO_EVENT_MODE 0x0c -#define OMAP_MPUIO_GPIO_INT_EDGE 0x0e -#define OMAP_MPUIO_KBD_INT 0x10 -#define OMAP_MPUIO_GPIO_INT 0x12 -#define OMAP_MPUIO_KBD_MASKIT 0x14 -#define OMAP_MPUIO_GPIO_MASKIT 0x16 -#define OMAP_MPUIO_GPIO_DEBOUNCING 0x18 -#define OMAP_MPUIO_LATCH 0x1a -#else +/* + * These are the omap15xx/16xx offsets. The omap7xx offset are + * OMAP_MPUIO_ / 2 offsets below. + */ #define OMAP_MPUIO_INPUT_LATCH 0x00 #define OMAP_MPUIO_OUTPUT 0x04 #define OMAP_MPUIO_IO_CNTL 0x08 @@ -60,7 +49,6 @@ #define OMAP_MPUIO_GPIO_MASKIT 0x2c #define OMAP_MPUIO_GPIO_DEBOUNCING 0x30 #define OMAP_MPUIO_LATCH 0x34 -#endif #define OMAP34XX_NR_GPIOS 6 @@ -71,7 +59,29 @@ IH_MPUIO_BASE + ((nr) & 0x0f) : \ IH_GPIO_BASE + (nr)) -extern int omap_gpio_init(void); /* Call from board init only */ +#define METHOD_MPUIO 0 +#define METHOD_GPIO_1510 1 +#define METHOD_GPIO_1610 2 +#define METHOD_GPIO_7XX 3 +#define METHOD_GPIO_24XX 5 +#define METHOD_GPIO_44XX 6 + +struct omap_gpio_dev_attr { + int bank_width; /* GPIO bank width */ + bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ +}; + +struct omap_gpio_platform_data { + u16 virtual_irq_start; + int bank_type; + int bank_width; /* GPIO bank width */ + int bank_stride; /* Only needed for omap1 MPUIO */ + bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ +}; + +/* TODO: Analyze removing gpio_bank_count usage from driver code */ +extern int gpio_bank_count; + extern void omap2_gpio_prepare_for_idle(int power_state); extern void omap2_gpio_resume_after_idle(void); extern void omap_set_gpio_debounce(int gpio, int enable); diff --git a/arch/arm/plat-omap/include/plat/i2c.h b/arch/arm/plat-omap/include/plat/i2c.h index 36a0befd6168..878d632c4092 100644 --- a/arch/arm/plat-omap/include/plat/i2c.h +++ b/arch/arm/plat-omap/include/plat/i2c.h @@ -36,6 +36,19 @@ static inline int omap_register_i2c_bus(int bus_id, u32 clkrate, } #endif +/** + * i2c_dev_attr - OMAP I2C controller device attributes for omap_hwmod + * @fifo_depth: total controller FIFO size (in bytes) + * @flags: differences in hardware support capability + * + * @fifo_depth represents what exists on the hardware, not what is + * actually configured at runtime by the device driver. + */ +struct omap_i2c_dev_attr { + u8 fifo_depth; + u8 flags; +}; + void __init omap1_i2c_mux_pins(int bus_id); void __init omap2_i2c_mux_pins(int bus_id); diff --git a/arch/arm/plat-omap/include/plat/io.h b/arch/arm/plat-omap/include/plat/io.h index 128b549c2796..204865f91d93 100644 --- a/arch/arm/plat-omap/include/plat/io.h +++ b/arch/arm/plat-omap/include/plat/io.h @@ -294,8 +294,8 @@ static inline void omap44xx_map_common_io(void) extern void omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, struct omap_sdrc_params *sdrc_cs1); -#define __arch_ioremap(p,s,t) omap_ioremap(p,s,t) -#define __arch_iounmap(v) omap_iounmap(v) +#define __arch_ioremap omap_ioremap +#define __arch_iounmap omap_iounmap void __iomem *omap_ioremap(unsigned long phys, size_t size, unsigned int type); void omap_iounmap(volatile void __iomem *addr); diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h index 33c7d41cb6a5..69230d685538 100644 --- a/arch/arm/plat-omap/include/plat/iommu.h +++ b/arch/arm/plat-omap/include/plat/iommu.h @@ -50,6 +50,8 @@ struct iommu { int (*isr)(struct iommu *obj); void *ctx; /* iommu context: registres saved area */ + u32 da_start; + u32 da_end; }; struct cr_regs { @@ -103,6 +105,8 @@ struct iommu_platform_data { const char *name; const char *clk_name; const int nr_tlb_entries; + u32 da_start; + u32 da_end; }; #if defined(CONFIG_ARCH_OMAP1) @@ -152,6 +156,7 @@ extern void flush_iotlb_all(struct iommu *obj); extern int iopgtable_store_entry(struct iommu *obj, struct iotlb_entry *e); extern size_t iopgtable_clear_entry(struct iommu *obj, u32 iova); +extern int iommu_set_da_range(struct iommu *obj, u32 start, u32 end); extern struct iommu *iommu_get(const char *name); extern void iommu_put(struct iommu *obj); diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h index 65e20a686713..2910de921c52 100644 --- a/arch/arm/plat-omap/include/plat/irqs.h +++ b/arch/arm/plat-omap/include/plat/irqs.h @@ -77,7 +77,7 @@ /* * OMAP-1610 specific IRQ numbers for interrupt handler 1 */ -#define INT_1610_IH2_IRQ 0 +#define INT_1610_IH2_IRQ INT_1510_IH2_IRQ #define INT_1610_IH2_FIQ 2 #define INT_1610_McBSP2_TX 4 #define INT_1610_McBSP2_RX 5 diff --git a/arch/arm/plat-omap/include/plat/l4_3xxx.h b/arch/arm/plat-omap/include/plat/l4_3xxx.h new file mode 100644 index 000000000000..5e1949375422 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/l4_3xxx.h @@ -0,0 +1,24 @@ +/* + * arch/arm/plat-omap/include/mach/l4_3xxx.h - L4 firewall definitions + * + * Copyright (C) 2009 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_L4_3XXX_H +#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_L4_3XXX_H + +/* L4 CORE */ +#define OMAP3_L4_CORE_FW_I2C1_REGION 21 +#define OMAP3_L4_CORE_FW_I2C1_TA_REGION 22 +#define OMAP3_L4_CORE_FW_I2C2_REGION 23 +#define OMAP3_L4_CORE_FW_I2C2_TA_REGION 24 +#define OMAP3_L4_CORE_FW_I2C3_REGION 73 +#define OMAP3_L4_CORE_FW_I2C3_TA_REGION 74 + +#endif diff --git a/arch/arm/plat-omap/include/plat/mailbox.h b/arch/arm/plat-omap/include/plat/mailbox.h index 997656552109..cc3921e9059c 100644 --- a/arch/arm/plat-omap/include/plat/mailbox.h +++ b/arch/arm/plat-omap/include/plat/mailbox.h @@ -46,8 +46,8 @@ struct omap_mbox_queue { struct kfifo fifo; struct work_struct work; struct tasklet_struct tasklet; - int (*callback)(void *); struct omap_mbox *mbox; + bool full; }; struct omap_mbox { @@ -57,13 +57,15 @@ struct omap_mbox { struct omap_mbox_ops *ops; struct device *dev; void *priv; + int use_count; + struct blocking_notifier_head notifier; }; int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg); void omap_mbox_init_seq(struct omap_mbox *); -struct omap_mbox *omap_mbox_get(const char *); -void omap_mbox_put(struct omap_mbox *); +struct omap_mbox *omap_mbox_get(const char *, struct notifier_block *nb); +void omap_mbox_put(struct omap_mbox *mbox, struct notifier_block *nb); int omap_mbox_register(struct device *parent, struct omap_mbox **); int omap_mbox_unregister(void); diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index c8dae02f0704..2682043f5a5b 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -22,7 +22,7 @@ #include <plat/mux.h> -#define DRIVER_NAME "omap-hsuart" +#define DRIVER_NAME "omap_uart" /* * Use tty device name as ttyO, [O -> OMAP] @@ -31,20 +31,8 @@ */ #define OMAP_SERIAL_NAME "ttyO" -#define OMAP_MDR1_DISABLE 0x07 -#define OMAP_MDR1_MODE13X 0x03 -#define OMAP_MDR1_MODE16X 0x00 #define OMAP_MODE13X_SPEED 230400 -/* - * LCR = 0XBF: Switch to Configuration Mode B. - * In configuration mode b allow access - * to EFR,DLL,DLH. - * Reference OMAP TRM Chapter 17 - * Section: 1.4.3 Mode Selection - */ -#define OMAP_UART_LCR_CONF_MDB 0XBF - /* WER = 0x7F * Enable module level wakeup in WER reg */ diff --git a/arch/arm/plat-omap/include/plat/uncompress.h b/arch/arm/plat-omap/include/plat/uncompress.h index 9036e374e0ac..7bbc0740cb46 100644 --- a/arch/arm/plat-omap/include/plat/uncompress.h +++ b/arch/arm/plat-omap/include/plat/uncompress.h @@ -145,8 +145,10 @@ static inline void __arch_decomp_setup(unsigned long arch_id) /* omap3 based boards using UART3 */ DEBUG_LL_OMAP3(3, cm_t35); DEBUG_LL_OMAP3(3, cm_t3517); + DEBUG_LL_OMAP3(3, craneboard); DEBUG_LL_OMAP3(3, igep0020); DEBUG_LL_OMAP3(3, igep0030); + DEBUG_LL_OMAP3(3, nokia_rm680); DEBUG_LL_OMAP3(3, nokia_rx51); DEBUG_LL_OMAP3(3, omap3517evm); DEBUG_LL_OMAP3(3, omap3_beagle); diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c index b0078cf96281..f1295fafcd31 100644 --- a/arch/arm/plat-omap/io.c +++ b/arch/arm/plat-omap/io.c @@ -136,61 +136,3 @@ void omap_iounmap(volatile void __iomem *addr) __iounmap(addr); } EXPORT_SYMBOL(omap_iounmap); - -/* - * NOTE: Please use ioremap + __raw_read/write where possible instead of these - */ - -u8 omap_readb(u32 pa) -{ - if (cpu_class_is_omap1()) - return __raw_readb(OMAP1_IO_ADDRESS(pa)); - else - return __raw_readb(OMAP2_L4_IO_ADDRESS(pa)); -} -EXPORT_SYMBOL(omap_readb); - -u16 omap_readw(u32 pa) -{ - if (cpu_class_is_omap1()) - return __raw_readw(OMAP1_IO_ADDRESS(pa)); - else - return __raw_readw(OMAP2_L4_IO_ADDRESS(pa)); -} -EXPORT_SYMBOL(omap_readw); - -u32 omap_readl(u32 pa) -{ - if (cpu_class_is_omap1()) - return __raw_readl(OMAP1_IO_ADDRESS(pa)); - else - return __raw_readl(OMAP2_L4_IO_ADDRESS(pa)); -} -EXPORT_SYMBOL(omap_readl); - -void omap_writeb(u8 v, u32 pa) -{ - if (cpu_class_is_omap1()) - __raw_writeb(v, OMAP1_IO_ADDRESS(pa)); - else - __raw_writeb(v, OMAP2_L4_IO_ADDRESS(pa)); -} -EXPORT_SYMBOL(omap_writeb); - -void omap_writew(u16 v, u32 pa) -{ - if (cpu_class_is_omap1()) - __raw_writew(v, OMAP1_IO_ADDRESS(pa)); - else - __raw_writew(v, OMAP2_L4_IO_ADDRESS(pa)); -} -EXPORT_SYMBOL(omap_writew); - -void omap_writel(u32 v, u32 pa) -{ - if (cpu_class_is_omap1()) - __raw_writel(v, OMAP1_IO_ADDRESS(pa)); - else - __raw_writel(v, OMAP2_L4_IO_ADDRESS(pa)); -} -EXPORT_SYMBOL(omap_writel); diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index 6cd151b31bc5..b1107c08da56 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -830,6 +830,28 @@ static int device_match_by_alias(struct device *dev, void *data) } /** + * iommu_set_da_range - Set a valid device address range + * @obj: target iommu + * @start Start of valid range + * @end End of valid range + **/ +int iommu_set_da_range(struct iommu *obj, u32 start, u32 end) +{ + + if (!obj) + return -EFAULT; + + if (end < start || !PAGE_ALIGN(start | end)) + return -EINVAL; + + obj->da_start = start; + obj->da_end = end; + + return 0; +} +EXPORT_SYMBOL_GPL(iommu_set_da_range); + +/** * iommu_get - Get iommu handler * @name: target iommu name **/ @@ -922,6 +944,8 @@ static int __devinit omap_iommu_probe(struct platform_device *pdev) obj->name = pdata->name; obj->dev = &pdev->dev; obj->ctx = (void *)obj + sizeof(*obj); + obj->da_start = pdata->da_start; + obj->da_end = pdata->da_end; mutex_init(&obj->iommu_lock); mutex_init(&obj->mmap_lock); diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c index 8ce0de247c71..6dc1296c8c77 100644 --- a/arch/arm/plat-omap/iovmm.c +++ b/arch/arm/plat-omap/iovmm.c @@ -87,35 +87,43 @@ static size_t sgtable_len(const struct sg_table *sgt) } #define sgtable_ok(x) (!!sgtable_len(x)) +static unsigned max_alignment(u32 addr) +{ + int i; + unsigned pagesize[] = { SZ_16M, SZ_1M, SZ_64K, SZ_4K, }; + for (i = 0; i < ARRAY_SIZE(pagesize) && addr & (pagesize[i] - 1); i++) + ; + return (i < ARRAY_SIZE(pagesize)) ? pagesize[i] : 0; +} + /* * calculate the optimal number sg elements from total bytes based on * iommu superpages */ -static unsigned int sgtable_nents(size_t bytes) +static unsigned sgtable_nents(size_t bytes, u32 da, u32 pa) { - int i; - unsigned int nr_entries; - const unsigned long pagesize[] = { SZ_16M, SZ_1M, SZ_64K, SZ_4K, }; + unsigned nr_entries = 0, ent_sz; if (!IS_ALIGNED(bytes, PAGE_SIZE)) { pr_err("%s: wrong size %08x\n", __func__, bytes); return 0; } - nr_entries = 0; - for (i = 0; i < ARRAY_SIZE(pagesize); i++) { - if (bytes >= pagesize[i]) { - nr_entries += (bytes / pagesize[i]); - bytes %= pagesize[i]; - } + while (bytes) { + ent_sz = max_alignment(da | pa); + ent_sz = min_t(unsigned, ent_sz, iopgsz_max(bytes)); + nr_entries++; + da += ent_sz; + pa += ent_sz; + bytes -= ent_sz; } - BUG_ON(bytes); return nr_entries; } /* allocate and initialize sg_table header(a kind of 'superblock') */ -static struct sg_table *sgtable_alloc(const size_t bytes, u32 flags) +static struct sg_table *sgtable_alloc(const size_t bytes, u32 flags, + u32 da, u32 pa) { unsigned int nr_entries; int err; @@ -127,9 +135,8 @@ static struct sg_table *sgtable_alloc(const size_t bytes, u32 flags) if (!IS_ALIGNED(bytes, PAGE_SIZE)) return ERR_PTR(-EINVAL); - /* FIXME: IOVMF_DA_FIXED should support 'superpages' */ - if ((flags & IOVMF_LINEAR) && (flags & IOVMF_DA_ANON)) { - nr_entries = sgtable_nents(bytes); + if (flags & IOVMF_LINEAR) { + nr_entries = sgtable_nents(bytes, da, pa); if (!nr_entries) return ERR_PTR(-EINVAL); } else @@ -273,13 +280,14 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, alignement = PAGE_SIZE; if (flags & IOVMF_DA_ANON) { - /* - * Reserve the first page for NULL - */ - start = PAGE_SIZE; + start = obj->da_start; + if (flags & IOVMF_LINEAR) alignement = iopgsz_max(bytes); start = roundup(start, alignement); + } else if (start < obj->da_start || start > obj->da_end || + obj->da_end - start < bytes) { + return ERR_PTR(-EINVAL); } tmp = NULL; @@ -289,19 +297,19 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, prev_end = 0; list_for_each_entry(tmp, &obj->mmap, list) { - if (prev_end >= start) + if (prev_end > start) break; - if (start + bytes < tmp->da_start) + if (tmp->da_start > start && (tmp->da_start - start) >= bytes) goto found; - if (flags & IOVMF_DA_ANON) + if (tmp->da_end >= start && flags & IOVMF_DA_ANON) start = roundup(tmp->da_end + 1, alignement); prev_end = tmp->da_end; } - if ((start > prev_end) && (ULONG_MAX - start >= bytes)) + if ((start >= prev_end) && (obj->da_end - start >= bytes)) goto found; dev_dbg(obj->dev, "%s: no space to fit %08x(%x) flags: %08x\n", @@ -409,7 +417,8 @@ static inline void sgtable_drain_vmalloc(struct sg_table *sgt) BUG_ON(!sgt); } -static void sgtable_fill_kmalloc(struct sg_table *sgt, u32 pa, size_t len) +static void sgtable_fill_kmalloc(struct sg_table *sgt, u32 pa, u32 da, + size_t len) { unsigned int i; struct scatterlist *sg; @@ -418,9 +427,10 @@ static void sgtable_fill_kmalloc(struct sg_table *sgt, u32 pa, size_t len) va = phys_to_virt(pa); for_each_sg(sgt->sgl, sg, sgt->nents, i) { - size_t bytes; + unsigned bytes; - bytes = iopgsz_max(len); + bytes = max_alignment(da | pa); + bytes = min_t(unsigned, bytes, iopgsz_max(len)); BUG_ON(!iopgsz_ok(bytes)); @@ -429,6 +439,7 @@ static void sgtable_fill_kmalloc(struct sg_table *sgt, u32 pa, size_t len) * 'pa' is cotinuous(linear). */ pa += bytes; + da += bytes; len -= bytes; } BUG_ON(len); @@ -695,18 +706,18 @@ u32 iommu_vmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags) if (!va) return -ENOMEM; - sgt = sgtable_alloc(bytes, flags); + flags &= IOVMF_HW_MASK; + flags |= IOVMF_DISCONT; + flags |= IOVMF_ALLOC; + flags |= (da ? IOVMF_DA_FIXED : IOVMF_DA_ANON); + + sgt = sgtable_alloc(bytes, flags, da, 0); if (IS_ERR(sgt)) { da = PTR_ERR(sgt); goto err_sgt_alloc; } sgtable_fill_vmalloc(sgt, va); - flags &= IOVMF_HW_MASK; - flags |= IOVMF_DISCONT; - flags |= IOVMF_ALLOC; - flags |= (da ? IOVMF_DA_FIXED : IOVMF_DA_ANON); - da = __iommu_vmap(obj, da, sgt, va, bytes, flags); if (IS_ERR_VALUE(da)) goto err_iommu_vmap; @@ -746,11 +757,11 @@ static u32 __iommu_kmap(struct iommu *obj, u32 da, u32 pa, void *va, { struct sg_table *sgt; - sgt = sgtable_alloc(bytes, flags); + sgt = sgtable_alloc(bytes, flags, da, pa); if (IS_ERR(sgt)) return PTR_ERR(sgt); - sgtable_fill_kmalloc(sgt, pa, bytes); + sgtable_fill_kmalloc(sgt, pa, da, bytes); da = map_iommu_region(obj, da, sgt, va, bytes, flags); if (IS_ERR_VALUE(da)) { @@ -811,7 +822,7 @@ void iommu_kunmap(struct iommu *obj, u32 da) struct sg_table *sgt; typedef void (*func_t)(const void *); - sgt = unmap_vm_area(obj, da, (func_t)__iounmap, + sgt = unmap_vm_area(obj, da, (func_t)iounmap, IOVMF_LINEAR | IOVMF_MMIO); if (!sgt) dev_dbg(obj->dev, "%s: No sgt\n", __func__); diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c index d2fafb892f7f..459b319a9fad 100644 --- a/arch/arm/plat-omap/mailbox.c +++ b/arch/arm/plat-omap/mailbox.c @@ -28,12 +28,12 @@ #include <linux/slab.h> #include <linux/kfifo.h> #include <linux/err.h> +#include <linux/notifier.h> #include <plat/mailbox.h> static struct workqueue_struct *mboxd; static struct omap_mbox **mboxes; -static bool rq_full; static int mbox_configured; static DEFINE_MUTEX(mbox_configured_lock); @@ -93,20 +93,25 @@ int omap_mbox_msg_send(struct omap_mbox *mbox, mbox_msg_t msg) struct omap_mbox_queue *mq = mbox->txq; int ret = 0, len; - spin_lock(&mq->lock); + spin_lock_bh(&mq->lock); if (kfifo_avail(&mq->fifo) < sizeof(msg)) { ret = -ENOMEM; goto out; } + if (kfifo_is_empty(&mq->fifo) && !__mbox_poll_for_space(mbox)) { + mbox_fifo_write(mbox, msg); + goto out; + } + len = kfifo_in(&mq->fifo, (unsigned char *)&msg, sizeof(msg)); WARN_ON(len != sizeof(msg)); tasklet_schedule(&mbox->txq->tasklet); out: - spin_unlock(&mq->lock); + spin_unlock_bh(&mq->lock); return ret; } EXPORT_SYMBOL(omap_mbox_msg_send); @@ -146,8 +151,14 @@ static void mbox_rx_work(struct work_struct *work) len = kfifo_out(&mq->fifo, (unsigned char *)&msg, sizeof(msg)); WARN_ON(len != sizeof(msg)); - if (mq->callback) - mq->callback((void *)msg); + blocking_notifier_call_chain(&mq->mbox->notifier, len, + (void *)msg); + spin_lock_irq(&mq->lock); + if (mq->full) { + mq->full = false; + omap_mbox_enable_irq(mq->mbox, IRQ_RX); + } + spin_unlock_irq(&mq->lock); } } @@ -170,7 +181,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox) while (!mbox_fifo_empty(mbox)) { if (unlikely(kfifo_avail(&mq->fifo) < sizeof(msg))) { omap_mbox_disable_irq(mbox, IRQ_RX); - rq_full = true; + mq->full = true; goto nomem; } @@ -239,73 +250,77 @@ static int omap_mbox_startup(struct omap_mbox *mbox) int ret = 0; struct omap_mbox_queue *mq; - if (mbox->ops->startup) { - mutex_lock(&mbox_configured_lock); - if (!mbox_configured) + mutex_lock(&mbox_configured_lock); + if (!mbox_configured++) { + if (likely(mbox->ops->startup)) { ret = mbox->ops->startup(mbox); - - if (ret) { - mutex_unlock(&mbox_configured_lock); - return ret; - } - mbox_configured++; - mutex_unlock(&mbox_configured_lock); - } - - ret = request_irq(mbox->irq, mbox_interrupt, IRQF_SHARED, - mbox->name, mbox); - if (ret) { - printk(KERN_ERR - "failed to register mailbox interrupt:%d\n", ret); - goto fail_request_irq; + if (unlikely(ret)) + goto fail_startup; + } else + goto fail_startup; } - mq = mbox_queue_alloc(mbox, NULL, mbox_tx_tasklet); - if (!mq) { - ret = -ENOMEM; - goto fail_alloc_txq; - } - mbox->txq = mq; + if (!mbox->use_count++) { + ret = request_irq(mbox->irq, mbox_interrupt, IRQF_SHARED, + mbox->name, mbox); + if (unlikely(ret)) { + pr_err("failed to register mailbox interrupt:%d\n", + ret); + goto fail_request_irq; + } + mq = mbox_queue_alloc(mbox, NULL, mbox_tx_tasklet); + if (!mq) { + ret = -ENOMEM; + goto fail_alloc_txq; + } + mbox->txq = mq; - mq = mbox_queue_alloc(mbox, mbox_rx_work, NULL); - if (!mq) { - ret = -ENOMEM; - goto fail_alloc_rxq; + mq = mbox_queue_alloc(mbox, mbox_rx_work, NULL); + if (!mq) { + ret = -ENOMEM; + goto fail_alloc_rxq; + } + mbox->rxq = mq; + mq->mbox = mbox; } - mbox->rxq = mq; - + mutex_unlock(&mbox_configured_lock); return 0; - fail_alloc_rxq: +fail_alloc_rxq: mbox_queue_free(mbox->txq); - fail_alloc_txq: +fail_alloc_txq: free_irq(mbox->irq, mbox); - fail_request_irq: +fail_request_irq: if (mbox->ops->shutdown) mbox->ops->shutdown(mbox); - + mbox->use_count--; +fail_startup: + mbox_configured--; + mutex_unlock(&mbox_configured_lock); return ret; } static void omap_mbox_fini(struct omap_mbox *mbox) { - free_irq(mbox->irq, mbox); - tasklet_kill(&mbox->txq->tasklet); - flush_work(&mbox->rxq->work); - mbox_queue_free(mbox->txq); - mbox_queue_free(mbox->rxq); + mutex_lock(&mbox_configured_lock); + + if (!--mbox->use_count) { + free_irq(mbox->irq, mbox); + tasklet_kill(&mbox->txq->tasklet); + flush_work(&mbox->rxq->work); + mbox_queue_free(mbox->txq); + mbox_queue_free(mbox->rxq); + } - if (mbox->ops->shutdown) { - mutex_lock(&mbox_configured_lock); - if (mbox_configured > 0) - mbox_configured--; - if (!mbox_configured) + if (likely(mbox->ops->shutdown)) { + if (!--mbox_configured) mbox->ops->shutdown(mbox); - mutex_unlock(&mbox_configured_lock); } + + mutex_unlock(&mbox_configured_lock); } -struct omap_mbox *omap_mbox_get(const char *name) +struct omap_mbox *omap_mbox_get(const char *name, struct notifier_block *nb) { struct omap_mbox *mbox; int ret; @@ -324,12 +339,16 @@ struct omap_mbox *omap_mbox_get(const char *name) if (ret) return ERR_PTR(-ENODEV); + if (nb) + blocking_notifier_chain_register(&mbox->notifier, nb); + return mbox; } EXPORT_SYMBOL(omap_mbox_get); -void omap_mbox_put(struct omap_mbox *mbox) +void omap_mbox_put(struct omap_mbox *mbox, struct notifier_block *nb) { + blocking_notifier_chain_unregister(&mbox->notifier, nb); omap_mbox_fini(mbox); } EXPORT_SYMBOL(omap_mbox_put); @@ -353,6 +372,8 @@ int omap_mbox_register(struct device *parent, struct omap_mbox **list) ret = PTR_ERR(mbox->dev); goto err_out; } + + BLOCKING_INIT_NOTIFIER_HEAD(&mbox->notifier); } return 0; @@ -391,7 +412,8 @@ static int __init omap_mbox_init(void) /* kfifo size sanity check: alignment and minimal size */ mbox_kfifo_size = ALIGN(mbox_kfifo_size, sizeof(mbox_msg_t)); - mbox_kfifo_size = max_t(unsigned int, mbox_kfifo_size, sizeof(mbox_msg_t)); + mbox_kfifo_size = max_t(unsigned int, mbox_kfifo_size, + sizeof(mbox_msg_t)); return 0; } diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index eac4b978e9fd..fdecd339d4f8 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -755,7 +755,7 @@ int omap_mcbsp_request(unsigned int id) goto err_kfree; } - mcbsp->free = 0; + mcbsp->free = false; mcbsp->reg_cache = reg_cache; spin_unlock(&mcbsp->lock); @@ -815,7 +815,7 @@ err_clk_disable: clk_disable(mcbsp->iclk); spin_lock(&mcbsp->lock); - mcbsp->free = 1; + mcbsp->free = true; mcbsp->reg_cache = NULL; err_kfree: spin_unlock(&mcbsp->lock); @@ -858,7 +858,7 @@ void omap_mcbsp_free(unsigned int id) if (mcbsp->free) dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id); else - mcbsp->free = 1; + mcbsp->free = true; mcbsp->reg_cache = NULL; spin_unlock(&mcbsp->lock); @@ -1771,7 +1771,7 @@ static int __devinit omap_mcbsp_probe(struct platform_device *pdev) spin_lock_init(&mcbsp->lock); mcbsp->id = id + 1; - mcbsp->free = 1; + mcbsp->free = true; mcbsp->dma_tx_lch = -1; mcbsp->dma_rx_lch = -1; @@ -1836,17 +1836,11 @@ static int __devexit omap_mcbsp_remove(struct platform_device *pdev) omap34xx_device_exit(mcbsp); - clk_disable(mcbsp->fclk); - clk_disable(mcbsp->iclk); clk_put(mcbsp->fclk); clk_put(mcbsp->iclk); iounmap(mcbsp->io_base); - - mcbsp->fclk = NULL; - mcbsp->iclk = NULL; - mcbsp->free = 0; - mcbsp->dev = NULL; + kfree(mcbsp); } return 0; diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 86f3eb720f0c..1a686c89d8dd 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -267,7 +267,7 @@ void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl) _omap_sram_reprogram_clock(dpllctl, ckctl); } -int __init omap1_sram_init(void) +static int __init omap1_sram_init(void) { _omap_sram_reprogram_clock = omap_sram_push(omap1_sram_reprogram_clock, |
