diff options
Diffstat (limited to 'arch/arm/mach-davinci')
| -rw-r--r-- | arch/arm/mach-davinci/board-da830-evm.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/board-da850-evm.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/board-mityomapl138.c | 9 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/clock.c | 39 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/clock.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/da850.c | 17 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/devices-da8xx.c | 16 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/clock.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/da8xx.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/psc.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/psc.c | 29 |
11 files changed, 117 insertions, 24 deletions
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c index e3742716cbaa..6da25eebf911 100644 --- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -652,8 +652,13 @@ static __init void da830_evm_init(void) if (ret) pr_warning("da830_evm_init: rtc setup failed: %d\n", ret); - ret = da8xx_register_spi(0, da830evm_spi_info, - ARRAY_SIZE(da830evm_spi_info)); + ret = spi_register_board_info(da830evm_spi_info, + ARRAY_SIZE(da830evm_spi_info)); + if (ret) + pr_warn("%s: spi info registration failed: %d\n", __func__, + ret); + + ret = da8xx_register_spi_bus(0, ARRAY_SIZE(da830evm_spi_info)); if (ret) pr_warning("da830_evm_init: spi 0 registration failed: %d\n", ret); diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index 3b3356097bb0..3a76a47df39c 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -1565,8 +1565,13 @@ static __init void da850_evm_init(void) da850_vpif_init(); - ret = da8xx_register_spi(1, da850evm_spi_info, - ARRAY_SIZE(da850evm_spi_info)); + ret = spi_register_board_info(da850evm_spi_info, + ARRAY_SIZE(da850evm_spi_info)); + if (ret) + pr_warn("%s: spi info registration failed: %d\n", __func__, + ret); + + ret = da8xx_register_spi_bus(1, ARRAY_SIZE(da850evm_spi_info)); if (ret) pr_warning("da850_evm_init: spi 1 registration failed: %d\n", ret); diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c index b0df578bf744..9549d53aa63f 100644 --- a/arch/arm/mach-davinci/board-mityomapl138.c +++ b/arch/arm/mach-davinci/board-mityomapl138.c @@ -529,8 +529,13 @@ static void __init mityomapl138_init(void) mityomapl138_setup_nand(); - ret = da8xx_register_spi(1, mityomapl138_spi_flash_info, - ARRAY_SIZE(mityomapl138_spi_flash_info)); + ret = spi_register_board_info(mityomapl138_spi_flash_info, + ARRAY_SIZE(mityomapl138_spi_flash_info)); + if (ret) + pr_warn("spi info registration failed: %d\n", ret); + + ret = da8xx_register_spi_bus(1, + ARRAY_SIZE(mityomapl138_spi_flash_info)); if (ret) pr_warning("spi 1 registration failed: %d\n", ret); diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c index 34668ead53c7..d458558ee84a 100644 --- a/arch/arm/mach-davinci/clock.c +++ b/arch/arm/mach-davinci/clock.c @@ -52,6 +52,40 @@ static void __clk_disable(struct clk *clk) __clk_disable(clk->parent); } +int davinci_clk_reset(struct clk *clk, bool reset) +{ + unsigned long flags; + + if (clk == NULL || IS_ERR(clk)) + return -EINVAL; + + spin_lock_irqsave(&clockfw_lock, flags); + if (clk->flags & CLK_PSC) + davinci_psc_reset(clk->gpsc, clk->lpsc, reset); + spin_unlock_irqrestore(&clockfw_lock, flags); + + return 0; +} +EXPORT_SYMBOL(davinci_clk_reset); + +int davinci_clk_reset_assert(struct clk *clk) +{ + if (clk == NULL || IS_ERR(clk) || !clk->reset) + return -EINVAL; + + return clk->reset(clk, true); +} +EXPORT_SYMBOL(davinci_clk_reset_assert); + +int davinci_clk_reset_deassert(struct clk *clk) +{ + if (clk == NULL || IS_ERR(clk) || !clk->reset) + return -EINVAL; + + return clk->reset(clk, false); +} +EXPORT_SYMBOL(davinci_clk_reset_deassert); + int clk_enable(struct clk *clk) { unsigned long flags; @@ -535,7 +569,7 @@ int davinci_set_refclk_rate(unsigned long rate) } int __init davinci_clk_init(struct clk_lookup *clocks) - { +{ struct clk_lookup *c; struct clk *clk; size_t num_clocks = 0; @@ -576,6 +610,9 @@ int __init davinci_clk_init(struct clk_lookup *clocks) if (clk->lpsc) clk->flags |= CLK_PSC; + if (clk->flags & PSC_LRST) + clk->reset = davinci_clk_reset; + clk_register(clk); num_clocks++; diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h index 46f0f1bf1a4c..8694b395fc92 100644 --- a/arch/arm/mach-davinci/clock.h +++ b/arch/arm/mach-davinci/clock.h @@ -103,6 +103,7 @@ struct clk { unsigned long (*recalc) (struct clk *); int (*set_rate) (struct clk *clk, unsigned long rate); int (*round_rate) (struct clk *clk, unsigned long rate); + int (*reset) (struct clk *clk, bool reset); }; /* Clock flags: SoC-specific flags start at BIT(16) */ @@ -112,6 +113,7 @@ struct clk { #define PRE_PLL BIT(4) /* source is before PLL mult/div */ #define PSC_SWRSTDISABLE BIT(5) /* Disable state is SwRstDisable */ #define PSC_FORCE BIT(6) /* Force module state transtition */ +#define PSC_LRST BIT(8) /* Use local reset on enable/disable */ #define CLK(dev, con, ck) \ { \ @@ -126,6 +128,7 @@ int davinci_set_pllrate(struct pll_data *pll, unsigned int prediv, int davinci_set_sysclk_rate(struct clk *clk, unsigned long rate); int davinci_set_refclk_rate(unsigned long rate); int davinci_simple_set_rate(struct clk *clk, unsigned long rate); +int davinci_clk_reset(struct clk *clk, bool reset); extern struct platform_device davinci_wdt_device; extern void davinci_watchdog_reset(struct platform_device *); diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 6b9154e9f908..0c4a26ddebba 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -76,6 +76,13 @@ static struct clk pll0_aux_clk = { .flags = CLK_PLL | PRE_PLL, }; +static struct clk pll0_sysclk1 = { + .name = "pll0_sysclk1", + .parent = &pll0_clk, + .flags = CLK_PLL, + .div_reg = PLLDIV1, +}; + static struct clk pll0_sysclk2 = { .name = "pll0_sysclk2", .parent = &pll0_clk, @@ -368,10 +375,19 @@ static struct clk sata_clk = { .flags = PSC_FORCE, }; +static struct clk dsp_clk = { + .name = "dsp", + .parent = &pll0_sysclk1, + .domain = DAVINCI_GPSC_DSPDOMAIN, + .lpsc = DA8XX_LPSC0_GEM, + .flags = PSC_LRST | PSC_FORCE, +}; + static struct clk_lookup da850_clks[] = { CLK(NULL, "ref", &ref_clk), CLK(NULL, "pll0", &pll0_clk), CLK(NULL, "pll0_aux", &pll0_aux_clk), + CLK(NULL, "pll0_sysclk1", &pll0_sysclk1), CLK(NULL, "pll0_sysclk2", &pll0_sysclk2), CLK(NULL, "pll0_sysclk3", &pll0_sysclk3), CLK(NULL, "pll0_sysclk4", &pll0_sysclk4), @@ -413,6 +429,7 @@ static struct clk_lookup da850_clks[] = { CLK("spi_davinci.1", NULL, &spi1_clk), CLK("vpif", NULL, &vpif_clk), CLK("ahci", NULL, &sata_clk), + CLK("davinci-rproc.0", NULL, &dsp_clk), CLK(NULL, NULL, NULL), }; diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 2d5502d84a22..aa402bc160c8 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -751,7 +751,7 @@ void __iomem * __init da8xx_get_mem_ctlr(void) da8xx_ddr2_ctlr_base = ioremap(DA8XX_DDR2_CTL_BASE, SZ_32K); if (!da8xx_ddr2_ctlr_base) - pr_warning("%s: Unable to map DDR2 controller", __func__); + pr_warn("%s: Unable to map DDR2 controller", __func__); return da8xx_ddr2_ctlr_base; } @@ -832,7 +832,7 @@ static struct resource da8xx_spi1_resources[] = { }, }; -struct davinci_spi_platform_data da8xx_spi_pdata[] = { +static struct davinci_spi_platform_data da8xx_spi_pdata[] = { [0] = { .version = SPI_VERSION_2, .intr_line = 1, @@ -866,20 +866,12 @@ static struct platform_device da8xx_spi_device[] = { }, }; -int __init da8xx_register_spi(int instance, const struct spi_board_info *info, - unsigned len) +int __init da8xx_register_spi_bus(int instance, unsigned num_chipselect) { - int ret; - if (instance < 0 || instance > 1) return -EINVAL; - ret = spi_register_board_info(info, len); - if (ret) - pr_warning("%s: failed to register board info for spi %d :" - " %d\n", __func__, instance, ret); - - da8xx_spi_pdata[instance].num_chipselect = len; + da8xx_spi_pdata[instance].num_chipselect = num_chipselect; if (instance == 1 && cpu_is_davinci_da850()) { da8xx_spi1_resources[0].start = DA850_SPI1_BASE; diff --git a/arch/arm/mach-davinci/include/mach/clock.h b/arch/arm/mach-davinci/include/mach/clock.h index a3b040219876..3e8af6a0b64c 100644 --- a/arch/arm/mach-davinci/include/mach/clock.h +++ b/arch/arm/mach-davinci/include/mach/clock.h @@ -18,4 +18,7 @@ struct clk; extern int clk_register(struct clk *clk); extern void clk_unregister(struct clk *clk); +int davinci_clk_reset_assert(struct clk *c); +int davinci_clk_reset_deassert(struct clk *c); + #endif diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 700d311c6854..1b14aea40310 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -82,8 +82,7 @@ void __init da850_init(void); int da830_register_edma(struct edma_rsv_info *rsv); int da850_register_edma(struct edma_rsv_info *rsv[2]); int da8xx_register_i2c(int instance, struct davinci_i2c_platform_data *pdata); -int da8xx_register_spi(int instance, - const struct spi_board_info *info, unsigned len); +int da8xx_register_spi_bus(int instance, unsigned num_chipselect); int da8xx_register_watchdog(void); int da8xx_register_usb20(unsigned mA, unsigned potpgt); int da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata); @@ -110,7 +109,6 @@ extern struct platform_device da8xx_serial_device; extern struct emac_platform_data da8xx_emac_pdata; extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata; extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata; -extern struct davinci_spi_platform_data da8xx_spi_pdata[]; extern struct platform_device da8xx_wdt_device; diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h index 40a0027838e8..0a22710493fd 100644 --- a/arch/arm/mach-davinci/include/mach/psc.h +++ b/arch/arm/mach-davinci/include/mach/psc.h @@ -246,6 +246,7 @@ #define MDSTAT_STATE_MASK 0x3f #define PDSTAT_STATE_MASK 0x1f +#define MDCTL_LRST BIT(8) #define MDCTL_FORCE BIT(31) #define PDCTL_NEXT BIT(0) #define PDCTL_EPCGOOD BIT(8) @@ -253,6 +254,8 @@ #ifndef __ASSEMBLER__ extern int davinci_psc_is_clk_active(unsigned int ctlr, unsigned int id); +extern void davinci_psc_reset(unsigned int ctlr, unsigned int id, + bool reset); extern void davinci_psc_config(unsigned int domain, unsigned int ctlr, unsigned int id, bool enable, u32 flags); diff --git a/arch/arm/mach-davinci/psc.c b/arch/arm/mach-davinci/psc.c index d7e210f4b55c..82fdc69d5728 100644 --- a/arch/arm/mach-davinci/psc.c +++ b/arch/arm/mach-davinci/psc.c @@ -35,7 +35,7 @@ int __init davinci_psc_is_clk_active(unsigned int ctlr, unsigned int id) struct davinci_soc_info *soc_info = &davinci_soc_info; if (!soc_info->psc_bases || (ctlr >= soc_info->psc_bases_num)) { - pr_warning("PSC: Bad psc data: 0x%x[%d]\n", + pr_warn("PSC: Bad psc data: 0x%x[%d]\n", (int)soc_info->psc_bases, ctlr); return 0; } @@ -48,6 +48,31 @@ int __init davinci_psc_is_clk_active(unsigned int ctlr, unsigned int id) return mdstat & BIT(12); } +/* Control "reset" line associated with PSC domain */ +void davinci_psc_reset(unsigned int ctlr, unsigned int id, bool reset) +{ + u32 mdctl; + void __iomem *psc_base; + struct davinci_soc_info *soc_info = &davinci_soc_info; + + if (!soc_info->psc_bases || (ctlr >= soc_info->psc_bases_num)) { + pr_warn("PSC: Bad psc data: 0x%x[%d]\n", + (int)soc_info->psc_bases, ctlr); + return; + } + + psc_base = ioremap(soc_info->psc_bases[ctlr], SZ_4K); + + mdctl = readl(psc_base + MDCTL + 4 * id); + if (reset) + mdctl &= ~MDCTL_LRST; + else + mdctl |= MDCTL_LRST; + writel(mdctl, psc_base + MDCTL + 4 * id); + + iounmap(psc_base); +} + /* Enable or disable a PSC domain */ void davinci_psc_config(unsigned int domain, unsigned int ctlr, unsigned int id, bool enable, u32 flags) @@ -58,7 +83,7 @@ void davinci_psc_config(unsigned int domain, unsigned int ctlr, u32 next_state = PSC_STATE_ENABLE; if (!soc_info->psc_bases || (ctlr >= soc_info->psc_bases_num)) { - pr_warning("PSC: Bad psc data: 0x%x[%d]\n", + pr_warn("PSC: Bad psc data: 0x%x[%d]\n", (int)soc_info->psc_bases, ctlr); return; } |
