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-rw-r--r--arch/arm/plat-omap/Kconfig2
-rw-r--r--arch/arm/plat-omap/clock.c31
-rw-r--r--arch/arm/plat-omap/common.c1
-rw-r--r--arch/arm/plat-omap/cpu-omap.c18
-rw-r--r--arch/arm/plat-omap/devices.c31
-rw-r--r--arch/arm/plat-omap/dma.c183
-rw-r--r--arch/arm/plat-omap/dmtimer.c474
-rw-r--r--arch/arm/plat-omap/fb.c1
-rw-r--r--arch/arm/plat-omap/gpio.c160
-rw-r--r--arch/arm/plat-omap/mcbsp.c9
-rw-r--r--arch/arm/plat-omap/mux.c1
-rw-r--r--arch/arm/plat-omap/ocpi.c1
-rw-r--r--arch/arm/plat-omap/pm.c670
-rw-r--r--arch/arm/plat-omap/sram-fn.S1
-rw-r--r--arch/arm/plat-omap/sram.c15
-rw-r--r--arch/arm/plat-omap/timer32k.c163
-rw-r--r--arch/arm/plat-omap/usb.c3
17 files changed, 785 insertions, 979 deletions
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index ec49495e651e..ec752e16d618 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -91,7 +91,7 @@ config OMAP_32K_TIMER_HZ
config OMAP_DM_TIMER
bool "Use dual-mode timer"
- depends on ARCH_OMAP16XX
+ depends on ARCH_OMAP16XX || ARCH_OMAP24XX
help
Select this option if you want to use OMAP Dual-Mode timers.
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 32ec04c58bcd..f1179ad4be1b 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -11,7 +11,6 @@
* published by the Free Software Foundation.
*/
#include <linux/version.h>
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -28,9 +27,9 @@
#include <asm/arch/clock.h>
-LIST_HEAD(clocks);
+static LIST_HEAD(clocks);
static DEFINE_MUTEX(clocks_mutex);
-DEFINE_SPINLOCK(clockfw_lock);
+static DEFINE_SPINLOCK(clockfw_lock);
static struct clk_functions *arch_clock;
@@ -101,6 +100,7 @@ void clk_disable(struct clk *clk)
return;
spin_lock_irqsave(&clockfw_lock, flags);
+ BUG_ON(clk->usecount == 0);
if (arch_clock->clk_disable)
arch_clock->clk_disable(clk);
spin_unlock_irqrestore(&clockfw_lock, flags);
@@ -323,6 +323,31 @@ EXPORT_SYMBOL(clk_allow_idle);
/*-------------------------------------------------------------------------*/
+#ifdef CONFIG_OMAP_RESET_CLOCKS
+/*
+ * Disable any unused clocks left on by the bootloader
+ */
+static int __init clk_disable_unused(void)
+{
+ struct clk *ck;
+ unsigned long flags;
+
+ list_for_each_entry(ck, &clocks, node) {
+ if (ck->usecount > 0 || (ck->flags & ALWAYS_ENABLED) ||
+ ck->enable_reg == 0)
+ continue;
+
+ spin_lock_irqsave(&clockfw_lock, flags);
+ if (arch_clock->clk_disable_unused)
+ arch_clock->clk_disable_unused(ck);
+ spin_unlock_irqrestore(&clockfw_lock, flags);
+ }
+
+ return 0;
+}
+late_initcall(clk_disable_unused);
+#endif
+
int __init clk_init(struct clk_functions * custom_clocks)
{
if (!custom_clocks) {
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index adffc5a859ee..57b7b93674a4 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -7,7 +7,6 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c
index 98edc9fdd6d1..a0c71dca2373 100644
--- a/arch/arm/plat-omap/cpu-omap.c
+++ b/arch/arm/plat-omap/cpu-omap.c
@@ -25,6 +25,14 @@
#include <asm/io.h>
#include <asm/system.h>
+#define VERY_HI_RATE 900000000
+
+#ifdef CONFIG_ARCH_OMAP1
+#define MPU_CLK "mpu"
+#else
+#define MPU_CLK "virt_prcm_set"
+#endif
+
/* TODO: Add support for SDRAM timing changes */
int omap_verify_speed(struct cpufreq_policy *policy)
@@ -36,7 +44,7 @@ int omap_verify_speed(struct cpufreq_policy *policy)
cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
policy->cpuinfo.max_freq);
- mpu_clk = clk_get(NULL, "mpu");
+ mpu_clk = clk_get(NULL, MPU_CLK);
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
policy->min = clk_round_rate(mpu_clk, policy->min * 1000) / 1000;
@@ -56,7 +64,7 @@ unsigned int omap_getspeed(unsigned int cpu)
if (cpu)
return 0;
- mpu_clk = clk_get(NULL, "mpu");
+ mpu_clk = clk_get(NULL, MPU_CLK);
if (IS_ERR(mpu_clk))
return 0;
rate = clk_get_rate(mpu_clk) / 1000;
@@ -73,7 +81,7 @@ static int omap_target(struct cpufreq_policy *policy,
struct cpufreq_freqs freqs;
int ret = 0;
- mpu_clk = clk_get(NULL, "mpu");
+ mpu_clk = clk_get(NULL, MPU_CLK);
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
@@ -93,7 +101,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy)
{
struct clk * mpu_clk;
- mpu_clk = clk_get(NULL, "mpu");
+ mpu_clk = clk_get(NULL, MPU_CLK);
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
@@ -102,7 +110,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy)
policy->cur = policy->min = policy->max = omap_getspeed(0);
policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
policy->cpuinfo.min_freq = clk_round_rate(mpu_clk, 0) / 1000;
- policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, 216000000) / 1000;
+ policy->cpuinfo.max_freq = clk_round_rate(mpu_clk, VERY_HI_RATE) / 1000;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
clk_put(mpu_clk);
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index 5d5d6eb222dd..dbc3f44e07a6 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -9,7 +9,6 @@
* (at your option) any later version.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@@ -105,7 +104,7 @@ static void omap_init_kp(void)
omap_cfg_reg(E20_1610_KBR3);
omap_cfg_reg(E19_1610_KBR4);
omap_cfg_reg(N19_1610_KBR5);
- } else if (machine_is_omap_perseus2()) {
+ } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
omap_cfg_reg(E2_730_KBR0);
omap_cfg_reg(J7_730_KBR1);
omap_cfg_reg(E1_730_KBR2);
@@ -149,7 +148,7 @@ static inline void omap_init_kp(void) {}
#ifdef CONFIG_ARCH_OMAP24XX
#define OMAP_MMC1_BASE 0x4809c000
-#define OMAP_MMC1_INT 83
+#define OMAP_MMC1_INT INT_24XX_MMC_IRQ
#else
#define OMAP_MMC1_BASE 0xfffb7800
#define OMAP_MMC1_INT INT_MMC
@@ -162,8 +161,8 @@ static u64 mmc1_dmamask = 0xffffffff;
static struct resource mmc1_resources[] = {
{
- .start = IO_ADDRESS(OMAP_MMC1_BASE),
- .end = IO_ADDRESS(OMAP_MMC1_BASE) + 0x7f,
+ .start = OMAP_MMC1_BASE,
+ .end = OMAP_MMC1_BASE + 0x7f,
.flags = IORESOURCE_MEM,
},
{
@@ -191,8 +190,8 @@ static u64 mmc2_dmamask = 0xffffffff;
static struct resource mmc2_resources[] = {
{
- .start = IO_ADDRESS(OMAP_MMC2_BASE),
- .end = IO_ADDRESS(OMAP_MMC2_BASE) + 0x7f,
+ .start = OMAP_MMC2_BASE,
+ .end = OMAP_MMC2_BASE + 0x7f,
.flags = IORESOURCE_MEM,
},
{
@@ -226,7 +225,14 @@ static void __init omap_init_mmc(void)
/* block 1 is always available and has just one pinout option */
mmc = &mmc_conf->mmc[0];
if (mmc->enabled) {
- if (!cpu_is_omap24xx()) {
+ if (cpu_is_omap24xx()) {
+ omap_cfg_reg(H18_24XX_MMC_CMD);
+ omap_cfg_reg(H15_24XX_MMC_CLKI);
+ omap_cfg_reg(G19_24XX_MMC_CLKO);
+ omap_cfg_reg(F20_24XX_MMC_DAT0);
+ omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
+ omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
+ } else {
omap_cfg_reg(MMC_CMD);
omap_cfg_reg(MMC_CLK);
omap_cfg_reg(MMC_DAT0);
@@ -237,7 +243,14 @@ static void __init omap_init_mmc(void)
}
}
if (mmc->wire4) {
- if (!cpu_is_omap24xx()) {
+ if (cpu_is_omap24xx()) {
+ omap_cfg_reg(H14_24XX_MMC_DAT1);
+ omap_cfg_reg(E19_24XX_MMC_DAT2);
+ omap_cfg_reg(D19_24XX_MMC_DAT3);
+ omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
+ omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
+ omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
+ } else {
omap_cfg_reg(MMC_DAT1);
/* NOTE: DAT2 can be on W10 (here) or M15 */
if (!mmc->nomux)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 5dac4230360d..1bbb431843ce 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -24,9 +24,9 @@
#include <linux/spinlock.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <asm/system.h>
-#include <asm/irq.h>
#include <asm/hardware.h>
#include <asm/dma.h>
#include <asm/io.h>
@@ -43,6 +43,7 @@
#define OMAP_DMA_ACTIVE 0x01
#define OMAP_DMA_CCR_EN (1 << 7)
+#define OMAP2_DMA_CSR_CLEAR_MASK 0xffe
#define OMAP_FUNC_MUX_ARM_BASE (0xfffe1000 + 0xec)
@@ -118,32 +119,41 @@ static void clear_lch_regs(int lch)
omap_writew(0, lch_base + i);
}
-void omap_set_dma_priority(int dst_port, int priority)
+void omap_set_dma_priority(int lch, int dst_port, int priority)
{
unsigned long reg;
u32 l;
- switch (dst_port) {
- case OMAP_DMA_PORT_OCP_T1: /* FFFECC00 */
- reg = OMAP_TC_OCPT1_PRIOR;
- break;
- case OMAP_DMA_PORT_OCP_T2: /* FFFECCD0 */
- reg = OMAP_TC_OCPT2_PRIOR;
- break;
- case OMAP_DMA_PORT_EMIFF: /* FFFECC08 */
- reg = OMAP_TC_EMIFF_PRIOR;
- break;
- case OMAP_DMA_PORT_EMIFS: /* FFFECC04 */
- reg = OMAP_TC_EMIFS_PRIOR;
- break;
- default:
- BUG();
- return;
+ if (cpu_class_is_omap1()) {
+ switch (dst_port) {
+ case OMAP_DMA_PORT_OCP_T1: /* FFFECC00 */
+ reg = OMAP_TC_OCPT1_PRIOR;
+ break;
+ case OMAP_DMA_PORT_OCP_T2: /* FFFECCD0 */
+ reg = OMAP_TC_OCPT2_PRIOR;
+ break;
+ case OMAP_DMA_PORT_EMIFF: /* FFFECC08 */
+ reg = OMAP_TC_EMIFF_PRIOR;
+ break;
+ case OMAP_DMA_PORT_EMIFS: /* FFFECC04 */
+ reg = OMAP_TC_EMIFS_PRIOR;
+ break;
+ default:
+ BUG();
+ return;
+ }
+ l = omap_readl(reg);
+ l &= ~(0xf << 8);
+ l |= (priority & 0xf) << 8;
+ omap_writel(l, reg);
+ }
+
+ if (cpu_is_omap24xx()) {
+ if (priority)
+ OMAP_DMA_CCR_REG(lch) |= (1 << 6);
+ else
+ OMAP_DMA_CCR_REG(lch) &= ~(1 << 6);
}
- l = omap_readl(reg);
- l &= ~(0xf << 8);
- l |= (priority & 0xf) << 8;
- omap_writel(l, reg);
}
void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
@@ -166,18 +176,24 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
if (cpu_is_omap24xx() && dma_trigger) {
u32 val = OMAP_DMA_CCR_REG(lch);
+ val &= ~(3 << 19);
if (dma_trigger > 63)
val |= 1 << 20;
if (dma_trigger > 31)
val |= 1 << 19;
+ val &= ~(0x1f);
val |= (dma_trigger & 0x1f);
if (sync_mode & OMAP_DMA_SYNC_FRAME)
val |= 1 << 5;
+ else
+ val &= ~(1 << 5);
if (sync_mode & OMAP_DMA_SYNC_BLOCK)
val |= 1 << 18;
+ else
+ val &= ~(1 << 18);
if (src_or_dst_synch)
val |= 1 << 24; /* source synch */
@@ -227,6 +243,14 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
OMAP1_DMA_LCH_CTRL_REG(lch) = w;
}
+void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode)
+{
+ if (cpu_is_omap24xx()) {
+ OMAP_DMA_CSDP_REG(lch) &= ~(0x3 << 16);
+ OMAP_DMA_CSDP_REG(lch) |= (mode << 16);
+ }
+}
+
/* Note that src_port is only for omap1 */
void omap_set_dma_src_params(int lch, int src_port, int src_amode,
unsigned long src_start,
@@ -286,22 +310,39 @@ void omap_set_dma_src_data_pack(int lch, int enable)
void omap_set_dma_src_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
{
+ unsigned int burst = 0;
OMAP_DMA_CSDP_REG(lch) &= ~(0x03 << 7);
switch (burst_mode) {
case OMAP_DMA_DATA_BURST_DIS:
break;
case OMAP_DMA_DATA_BURST_4:
- OMAP_DMA_CSDP_REG(lch) |= (0x02 << 7);
+ if (cpu_is_omap24xx())
+ burst = 0x1;
+ else
+ burst = 0x2;
break;
case OMAP_DMA_DATA_BURST_8:
- /* not supported by current hardware
+ if (cpu_is_omap24xx()) {
+ burst = 0x2;
+ break;
+ }
+ /* not supported by current hardware on OMAP1
* w |= (0x03 << 7);
* fall through
*/
+ case OMAP_DMA_DATA_BURST_16:
+ if (cpu_is_omap24xx()) {
+ burst = 0x3;
+ break;
+ }
+ /* OMAP1 don't support burst 16
+ * fall through
+ */
default:
BUG();
}
+ OMAP_DMA_CSDP_REG(lch) |= (burst << 7);
}
/* Note that dest_port is only for OMAP1 */
@@ -348,30 +389,49 @@ void omap_set_dma_dest_data_pack(int lch, int enable)
void omap_set_dma_dest_burst_mode(int lch, enum omap_dma_burst_mode burst_mode)
{
+ unsigned int burst = 0;
OMAP_DMA_CSDP_REG(lch) &= ~(0x03 << 14);
switch (burst_mode) {
case OMAP_DMA_DATA_BURST_DIS:
break;
case OMAP_DMA_DATA_BURST_4:
- OMAP_DMA_CSDP_REG(lch) |= (0x02 << 14);
+ if (cpu_is_omap24xx())
+ burst = 0x1;
+ else
+ burst = 0x2;
break;
case OMAP_DMA_DATA_BURST_8:
- OMAP_DMA_CSDP_REG(lch) |= (0x03 << 14);
+ if (cpu_is_omap24xx())
+ burst = 0x2;
+ else
+ burst = 0x3;
break;
+ case OMAP_DMA_DATA_BURST_16:
+ if (cpu_is_omap24xx()) {
+ burst = 0x3;
+ break;
+ }
+ /* OMAP1 don't support burst 16
+ * fall through
+ */
default:
printk(KERN_ERR "Invalid DMA burst mode\n");
BUG();
return;
}
+ OMAP_DMA_CSDP_REG(lch) |= (burst << 14);
}
static inline void omap_enable_channel_irq(int lch)
{
u32 status;
- /* Read CSR to make sure it's cleared. */
- status = OMAP_DMA_CSR_REG(lch);
+ /* Clear CSR */
+ if (cpu_class_is_omap1())
+ status = OMAP_DMA_CSR_REG(lch);
+ else if (cpu_is_omap24xx())
+ OMAP_DMA_CSR_REG(lch) = OMAP2_DMA_CSR_CLEAR_MASK;
/* Enable some nice interrupts. */
OMAP_DMA_CICR_REG(lch) = dma_chan[lch].enabled_irqs;
@@ -470,11 +530,13 @@ int omap_request_dma(int dev_id, const char *dev_name,
chan->dev_name = dev_name;
chan->callback = callback;
chan->data = data;
- chan->enabled_irqs = OMAP_DMA_TOUT_IRQ | OMAP_DMA_DROP_IRQ |
- OMAP_DMA_BLOCK_IRQ;
+ chan->enabled_irqs = OMAP_DMA_DROP_IRQ | OMAP_DMA_BLOCK_IRQ;
- if (cpu_is_omap24xx())
- chan->enabled_irqs |= OMAP2_DMA_TRANS_ERR_IRQ;
+ if (cpu_class_is_omap1())
+ chan->enabled_irqs |= OMAP1_DMA_TOUT_IRQ;
+ else if (cpu_is_omap24xx())
+ chan->enabled_irqs |= OMAP2_DMA_MISALIGNED_ERR_IRQ |
+ OMAP2_DMA_TRANS_ERR_IRQ;
if (cpu_is_omap16xx()) {
/* If the sync device is set, configure it dynamically. */
@@ -494,7 +556,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
omap_enable_channel_irq(free_ch);
/* Clear the CSR register and IRQ status register */
- OMAP_DMA_CSR_REG(free_ch) = 0x0;
+ OMAP_DMA_CSR_REG(free_ch) = OMAP2_DMA_CSR_CLEAR_MASK;
omap_writel(~0x0, OMAP_DMA4_IRQSTATUS_L0);
}
@@ -534,7 +596,7 @@ void omap_free_dma(int lch)
omap_writel(val, OMAP_DMA4_IRQENABLE_L0);
/* Clear the CSR register and IRQ status register */
- OMAP_DMA_CSR_REG(lch) = 0x0;
+ OMAP_DMA_CSR_REG(lch) = OMAP2_DMA_CSR_CLEAR_MASK;
val = omap_readl(OMAP_DMA4_IRQSTATUS_L0);
val |= 1 << lch;
@@ -653,6 +715,32 @@ void omap_stop_dma(int lch)
}
/*
+ * Allows changing the DMA callback function or data. This may be needed if
+ * the driver shares a single DMA channel for multiple dma triggers.
+ */
+int omap_set_dma_callback(int lch,
+ void (* callback)(int lch, u16 ch_status, void *data),
+ void *data)
+{
+ unsigned long flags;
+
+ if (lch < 0)
+ return -ENODEV;
+
+ spin_lock_irqsave(&dma_chan_lock, flags);
+ if (dma_chan[lch].dev_id == -1) {
+ printk(KERN_ERR "DMA callback for not set for free channel\n");
+ spin_unlock_irqrestore(&dma_chan_lock, flags);
+ return -EINVAL;
+ }
+ dma_chan[lch].callback = callback;
+ dma_chan[lch].data = data;
+ spin_unlock_irqrestore(&dma_chan_lock, flags);
+
+ return 0;
+}
+
+/*
* Returns current physical source address for the given DMA channel.
* If the channel is running the caller must disable interrupts prior calling
* this function and process the returned value before re-enabling interrupt to
@@ -798,7 +886,7 @@ static int omap1_dma_handle_ch(int ch)
"%d (CSR %04x)\n", ch, csr);
return 0;
}
- if (unlikely(csr & OMAP_DMA_TOUT_IRQ))
+ if (unlikely(csr & OMAP1_DMA_TOUT_IRQ))
printk(KERN_WARNING "DMA timeout with device %d\n",
dma_chan[ch].dev_id);
if (unlikely(csr & OMAP_DMA_DROP_IRQ))
@@ -846,20 +934,21 @@ static int omap2_dma_handle_ch(int ch)
return 0;
if (unlikely(dma_chan[ch].dev_id == -1))
return 0;
- /* REVISIT: According to 24xx TRM, there's no TOUT_IE */
- if (unlikely(status & OMAP_DMA_TOUT_IRQ))
- printk(KERN_INFO "DMA timeout with device %d\n",
- dma_chan[ch].dev_id);
if (unlikely(status & OMAP_DMA_DROP_IRQ))
printk(KERN_INFO
"DMA synchronization event drop occurred with device "
"%d\n", dma_chan[ch].dev_id);
-
if (unlikely(status & OMAP2_DMA_TRANS_ERR_IRQ))
printk(KERN_INFO "DMA transaction error with device %d\n",
dma_chan[ch].dev_id);
+ if (unlikely(status & OMAP2_DMA_SECURE_ERR_IRQ))
+ printk(KERN_INFO "DMA secure error with device %d\n",
+ dma_chan[ch].dev_id);
+ if (unlikely(status & OMAP2_DMA_MISALIGNED_ERR_IRQ))
+ printk(KERN_INFO "DMA misaligned error with device %d\n",
+ dma_chan[ch].dev_id);
- OMAP_DMA_CSR_REG(ch) = 0x20;
+ OMAP_DMA_CSR_REG(ch) = OMAP2_DMA_CSR_CLEAR_MASK;
val = omap_readl(OMAP_DMA4_IRQSTATUS_L0);
/* ch in this function is from 0-31 while in register it is 1-32 */
@@ -893,7 +982,7 @@ static irqreturn_t omap2_dma_irq_handler(int irq, void *dev_id,
static struct irqaction omap24xx_dma_irq = {
.name = "DMA",
.handler = omap2_dma_irq_handler,
- .flags = SA_INTERRUPT
+ .flags = IRQF_DISABLED
};
#else
@@ -1293,6 +1382,14 @@ static int __init omap_init_dma(void)
dma_chan_count = 16;
} else
dma_chan_count = 9;
+ if (cpu_is_omap16xx()) {
+ u16 w;
+
+ /* this would prevent OMAP sleep */
+ w = omap_readw(OMAP1610_DMA_LCD_CTRL);
+ w &= ~(1 << 8);
+ omap_writew(w, OMAP1610_DMA_LCD_CTRL);
+ }
} else if (cpu_is_omap24xx()) {
u8 revision = omap_readb(OMAP_DMA4_REVISION);
printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n",
@@ -1368,11 +1465,13 @@ EXPORT_SYMBOL(omap_request_dma);
EXPORT_SYMBOL(omap_free_dma);
EXPORT_SYMBOL(omap_start_dma);
EXPORT_SYMBOL(omap_stop_dma);
+EXPORT_SYMBOL(omap_set_dma_callback);
EXPORT_SYMBOL(omap_enable_dma_irq);
EXPORT_SYMBOL(omap_disable_dma_irq);
EXPORT_SYMBOL(omap_set_dma_transfer_params);
EXPORT_SYMBOL(omap_set_dma_color_mode);
+EXPORT_SYMBOL(omap_set_dma_write_mode);
EXPORT_SYMBOL(omap_set_dma_src_params);
EXPORT_SYMBOL(omap_set_dma_src_index);
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index eba3cb52ad87..bcbb8d7392be 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -4,7 +4,8 @@
* OMAP Dual-Mode Timers
*
* Copyright (C) 2005 Nokia Corporation
- * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
+ * OMAP2 support by Juha Yrjola
+ * API improvements and OMAP2 clock framework support by Timo Teras
*
* 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
@@ -26,15 +27,17 @@
*/
#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
#include <asm/hardware.h>
#include <asm/arch/dmtimer.h>
#include <asm/io.h>
#include <asm/arch/irqs.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-
-#define OMAP_TIMER_COUNT 8
+/* register offsets */
#define OMAP_TIMER_ID_REG 0x00
#define OMAP_TIMER_OCP_CFG_REG 0x10
#define OMAP_TIMER_SYS_STAT_REG 0x14
@@ -50,52 +53,228 @@
#define OMAP_TIMER_CAPTURE_REG 0x3c
#define OMAP_TIMER_IF_CTRL_REG 0x40
+/* timer control reg bits */
+#define OMAP_TIMER_CTRL_GPOCFG (1 << 14)
+#define OMAP_TIMER_CTRL_CAPTMODE (1 << 13)
+#define OMAP_TIMER_CTRL_PT (1 << 12)
+#define OMAP_TIMER_CTRL_TCM_LOWTOHIGH (0x1 << 8)
+#define OMAP_TIMER_CTRL_TCM_HIGHTOLOW (0x2 << 8)
+#define OMAP_TIMER_CTRL_TCM_BOTHEDGES (0x3 << 8)
+#define OMAP_TIMER_CTRL_SCPWM (1 << 7)
+#define OMAP_TIMER_CTRL_CE (1 << 6) /* compare enable */
+#define OMAP_TIMER_CTRL_PRE (1 << 5) /* prescaler enable */
+#define OMAP_TIMER_CTRL_PTV_SHIFT 2 /* how much to shift the prescaler value */
+#define OMAP_TIMER_CTRL_AR (1 << 1) /* auto-reload enable */
+#define OMAP_TIMER_CTRL_ST (1 << 0) /* start timer */
+
+struct omap_dm_timer {
+ unsigned long phys_base;
+ int irq;
+#ifdef CONFIG_ARCH_OMAP2
+ struct clk *iclk, *fclk;
+#endif
+ void __iomem *io_base;
+ unsigned reserved:1;
+ unsigned enabled:1;
+};
+
+#ifdef CONFIG_ARCH_OMAP1
-static struct dmtimer_info_struct {
- struct list_head unused_timers;
- struct list_head reserved_timers;
-} dm_timer_info;
+#define omap_dm_clk_enable(x)
+#define omap_dm_clk_disable(x)
static struct omap_dm_timer dm_timers[] = {
- { .base=0xfffb1400, .irq=INT_1610_GPTIMER1 },
- { .base=0xfffb1c00, .irq=INT_1610_GPTIMER2 },
- { .base=0xfffb2400, .irq=INT_1610_GPTIMER3 },
- { .base=0xfffb2c00, .irq=INT_1610_GPTIMER4 },
- { .base=0xfffb3400, .irq=INT_1610_GPTIMER5 },
- { .base=0xfffb3c00, .irq=INT_1610_GPTIMER6 },
- { .base=0xfffb4400, .irq=INT_1610_GPTIMER7 },
- { .base=0xfffb4c00, .irq=INT_1610_GPTIMER8 },
- { .base=0x0 },
+ { .phys_base = 0xfffb1400, .irq = INT_1610_GPTIMER1 },
+ { .phys_base = 0xfffb1c00, .irq = INT_1610_GPTIMER2 },
+ { .phys_base = 0xfffb2400, .irq = INT_1610_GPTIMER3 },
+ { .phys_base = 0xfffb2c00, .irq = INT_1610_GPTIMER4 },
+ { .phys_base = 0xfffb3400, .irq = INT_1610_GPTIMER5 },
+ { .phys_base = 0xfffb3c00, .irq = INT_1610_GPTIMER6 },
+ { .phys_base = 0xfffb4400, .irq = INT_1610_GPTIMER7 },
+ { .phys_base = 0xfffb4c00, .irq = INT_1610_GPTIMER8 },
};
+#elif defined(CONFIG_ARCH_OMAP2)
+
+#define omap_dm_clk_enable(x) clk_enable(x)
+#define omap_dm_clk_disable(x) clk_disable(x)
+
+static struct omap_dm_timer dm_timers[] = {
+ { .phys_base = 0x48028000, .irq = INT_24XX_GPTIMER1 },
+ { .phys_base = 0x4802a000, .irq = INT_24XX_GPTIMER2 },
+ { .phys_base = 0x48078000, .irq = INT_24XX_GPTIMER3 },
+ { .phys_base = 0x4807a000, .irq = INT_24XX_GPTIMER4 },
+ { .phys_base = 0x4807c000, .irq = INT_24XX_GPTIMER5 },
+ { .phys_base = 0x4807e000, .irq = INT_24XX_GPTIMER6 },
+ { .phys_base = 0x48080000, .irq = INT_24XX_GPTIMER7 },
+ { .phys_base = 0x48082000, .irq = INT_24XX_GPTIMER8 },
+ { .phys_base = 0x48084000, .irq = INT_24XX_GPTIMER9 },
+ { .phys_base = 0x48086000, .irq = INT_24XX_GPTIMER10 },
+ { .phys_base = 0x48088000, .irq = INT_24XX_GPTIMER11 },
+ { .phys_base = 0x4808a000, .irq = INT_24XX_GPTIMER12 },
+};
+static const char *dm_source_names[] = {
+ "sys_ck",
+ "func_32k_ck",
+ "alt_ck"
+};
+
+static struct clk *dm_source_clocks[3];
+
+#else
+
+#error OMAP architecture not supported!
+
+#endif
+
+static const int dm_timer_count = ARRAY_SIZE(dm_timers);
static spinlock_t dm_timer_lock;
+static inline u32 omap_dm_timer_read_reg(struct omap_dm_timer *timer, int reg)
+{
+ return readl(timer->io_base + reg);
+}
-inline void omap_dm_timer_write_reg(struct omap_dm_timer *timer, int reg, u32 value)
+static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, int reg, u32 value)
{
- omap_writel(value, timer->base + reg);
+ writel(value, timer->io_base + reg);
while (omap_dm_timer_read_reg(timer, OMAP_TIMER_WRITE_PEND_REG))
;
}
-u32 omap_dm_timer_read_reg(struct omap_dm_timer *timer, int reg)
+static void omap_dm_timer_wait_for_reset(struct omap_dm_timer *timer)
{
- return omap_readl(timer->base + reg);
+ int c;
+
+ c = 0;
+ while (!(omap_dm_timer_read_reg(timer, OMAP_TIMER_SYS_STAT_REG) & 1)) {
+ c++;
+ if (c > 100000) {
+ printk(KERN_ERR "Timer failed to reset\n");
+ return;
+ }
+ }
}
-int omap_dm_timers_active(void)
+static void omap_dm_timer_reset(struct omap_dm_timer *timer)
+{
+ u32 l;
+
+ if (!cpu_class_is_omap2() || timer != &dm_timers[0]) {
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);
+ omap_dm_timer_wait_for_reset(timer);
+ }
+ omap_dm_timer_set_source(timer, OMAP_TIMER_SRC_32_KHZ);
+
+ /* Set to smart-idle mode */
+ l = omap_dm_timer_read_reg(timer, OMAP_TIMER_OCP_CFG_REG);
+ l |= 0x02 << 3;
+
+ if (cpu_class_is_omap2() && timer == &dm_timers[0]) {
+ /* Enable wake-up only for GPT1 on OMAP2 CPUs*/
+ l |= 1 << 2;
+ /* Non-posted mode */
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0);
+ }
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG, l);
+}
+
+static void omap_dm_timer_prepare(struct omap_dm_timer *timer)
+{
+ omap_dm_timer_enable(timer);
+ omap_dm_timer_reset(timer);
+}
+
+struct omap_dm_timer *omap_dm_timer_request(void)
+{
+ struct omap_dm_timer *timer = NULL;
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&dm_timer_lock, flags);
+ for (i = 0; i < dm_timer_count; i++) {
+ if (dm_timers[i].reserved)
+ continue;
+
+ timer = &dm_timers[i];
+ timer->reserved = 1;
+ break;
+ }
+ spin_unlock_irqrestore(&dm_timer_lock, flags);
+
+ if (timer != NULL)
+ omap_dm_timer_prepare(timer);
+
+ return timer;
+}
+
+struct omap_dm_timer *omap_dm_timer_request_specific(int id)
{
struct omap_dm_timer *timer;
+ unsigned long flags;
- for (timer = &dm_timers[0]; timer->base; ++timer)
- if (omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG) &
- OMAP_TIMER_CTRL_ST)
- return 1;
+ spin_lock_irqsave(&dm_timer_lock, flags);
+ if (id <= 0 || id > dm_timer_count || dm_timers[id-1].reserved) {
+ spin_unlock_irqrestore(&dm_timer_lock, flags);
+ printk("BUG: warning at %s:%d/%s(): unable to get timer %d\n",
+ __FILE__, __LINE__, __FUNCTION__, id);
+ dump_stack();
+ return NULL;
+ }
- return 0;
+ timer = &dm_timers[id-1];
+ timer->reserved = 1;
+ spin_unlock_irqrestore(&dm_timer_lock, flags);
+
+ omap_dm_timer_prepare(timer);
+
+ return timer;
}
+void omap_dm_timer_free(struct omap_dm_timer *timer)
+{
+ omap_dm_timer_enable(timer);
+ omap_dm_timer_reset(timer);
+ omap_dm_timer_disable(timer);
+
+ WARN_ON(!timer->reserved);
+ timer->reserved = 0;
+}
+
+void omap_dm_timer_enable(struct omap_dm_timer *timer)
+{
+ if (timer->enabled)
+ return;
+
+ omap_dm_clk_enable(timer->fclk);
+ omap_dm_clk_enable(timer->iclk);
+
+ timer->enabled = 1;
+}
+
+void omap_dm_timer_disable(struct omap_dm_timer *timer)
+{
+ if (!timer->enabled)
+ return;
+
+ omap_dm_clk_disable(timer->iclk);
+ omap_dm_clk_disable(timer->fclk);
+
+ timer->enabled = 0;
+}
+
+int omap_dm_timer_get_irq(struct omap_dm_timer *timer)
+{
+ return timer->irq;
+}
+
+#if defined(CONFIG_ARCH_OMAP1)
+
+struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)
+{
+ BUG();
+}
/**
* omap_dm_timer_modify_idlect_mask - Check if any running timers use ARMXOR
@@ -103,184 +282,243 @@ int omap_dm_timers_active(void)
*/
__u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
{
- int n;
+ int i;
/* If ARMXOR cannot be idled this function call is unnecessary */
if (!(inputmask & (1 << 1)))
return inputmask;
/* If any active timer is using ARMXOR return modified mask */
- for (n = 0; dm_timers[n].base; ++n)
- if (omap_dm_timer_read_reg(&dm_timers[n], OMAP_TIMER_CTRL_REG)&
- OMAP_TIMER_CTRL_ST) {
- if (((omap_readl(MOD_CONF_CTRL_1)>>(n*2)) & 0x03) == 0)
+ for (i = 0; i < dm_timer_count; i++) {
+ u32 l;
+
+ l = omap_dm_timer_read_reg(&dm_timers[i], OMAP_TIMER_CTRL_REG);
+ if (l & OMAP_TIMER_CTRL_ST) {
+ if (((omap_readl(MOD_CONF_CTRL_1) >> (i * 2)) & 0x03) == 0)
inputmask &= ~(1 << 1);
else
inputmask &= ~(1 << 2);
}
+ }
return inputmask;
}
+#elif defined(CONFIG_ARCH_OMAP2)
-void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
+struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)
{
- int n = (timer - dm_timers) << 1;
- u32 l;
+ return timer->fclk;
+}
- l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
- l |= source << n;
- omap_writel(l, MOD_CONF_CTRL_1);
+__u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
+{
+ BUG();
}
+#endif
-static void omap_dm_timer_reset(struct omap_dm_timer *timer)
+void omap_dm_timer_trigger(struct omap_dm_timer *timer)
{
- /* Reset and set posted mode */
- omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);
- omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG, 0x02);
-
- omap_dm_timer_set_source(timer, OMAP_TIMER_SRC_ARMXOR);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);
}
+void omap_dm_timer_start(struct omap_dm_timer *timer)
+{
+ u32 l;
+ l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
+ if (!(l & OMAP_TIMER_CTRL_ST)) {
+ l |= OMAP_TIMER_CTRL_ST;
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
+ }
+}
-struct omap_dm_timer * omap_dm_timer_request(void)
+void omap_dm_timer_stop(struct omap_dm_timer *timer)
{
- struct omap_dm_timer *timer = NULL;
- unsigned long flags;
+ u32 l;
- spin_lock_irqsave(&dm_timer_lock, flags);
- if (!list_empty(&dm_timer_info.unused_timers)) {
- timer = (struct omap_dm_timer *)
- dm_timer_info.unused_timers.next;
- list_move_tail((struct list_head *)timer,
- &dm_timer_info.reserved_timers);
+ l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
+ if (l & OMAP_TIMER_CTRL_ST) {
+ l &= ~0x1;
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
}
- spin_unlock_irqrestore(&dm_timer_lock, flags);
-
- return timer;
}
+#ifdef CONFIG_ARCH_OMAP1
-void omap_dm_timer_free(struct omap_dm_timer *timer)
+void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
{
- unsigned long flags;
-
- omap_dm_timer_reset(timer);
+ int n = (timer - dm_timers) << 1;
+ u32 l;
- spin_lock_irqsave(&dm_timer_lock, flags);
- list_move_tail((struct list_head *)timer, &dm_timer_info.unused_timers);
- spin_unlock_irqrestore(&dm_timer_lock, flags);
+ l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
+ l |= source << n;
+ omap_writel(l, MOD_CONF_CTRL_1);
}
-void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
- unsigned int value)
-{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG, value);
-}
+#else
-unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
+void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
{
- return omap_dm_timer_read_reg(timer, OMAP_TIMER_STAT_REG);
-}
+ if (source < 0 || source >= 3)
+ return;
-void omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)
-{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG, value);
+ clk_disable(timer->fclk);
+ clk_set_parent(timer->fclk, dm_source_clocks[source]);
+ clk_enable(timer->fclk);
+
+ /* When the functional clock disappears, too quick writes seem to
+ * cause an abort. */
+ __delay(15000);
}
-void omap_dm_timer_enable_autoreload(struct omap_dm_timer *timer)
+#endif
+
+void omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,
+ unsigned int load)
{
u32 l;
+
l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
- l |= OMAP_TIMER_CTRL_AR;
+ if (autoreload)
+ l |= OMAP_TIMER_CTRL_AR;
+ else
+ l &= ~OMAP_TIMER_CTRL_AR;
omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG, load);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);
}
-void omap_dm_timer_trigger(struct omap_dm_timer *timer)
-{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 1);
-}
-
-void omap_dm_timer_set_trigger(struct omap_dm_timer *timer, unsigned int value)
+void omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,
+ unsigned int match)
{
u32 l;
l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
- l |= value & 0x3;
+ if (enable)
+ l |= OMAP_TIMER_CTRL_CE;
+ else
+ l &= ~OMAP_TIMER_CTRL_CE;
omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG, match);
}
-void omap_dm_timer_start(struct omap_dm_timer *timer)
+
+void omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,
+ int toggle, int trigger)
{
u32 l;
l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
- l |= OMAP_TIMER_CTRL_ST;
+ l &= ~(OMAP_TIMER_CTRL_GPOCFG | OMAP_TIMER_CTRL_SCPWM |
+ OMAP_TIMER_CTRL_PT | (0x03 << 10));
+ if (def_on)
+ l |= OMAP_TIMER_CTRL_SCPWM;
+ if (toggle)
+ l |= OMAP_TIMER_CTRL_PT;
+ l |= trigger << 10;
omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
}
-void omap_dm_timer_stop(struct omap_dm_timer *timer)
+void omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)
{
u32 l;
l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
- l &= ~0x1;
+ l &= ~(OMAP_TIMER_CTRL_PRE | (0x07 << 2));
+ if (prescaler >= 0x00 && prescaler <= 0x07) {
+ l |= OMAP_TIMER_CTRL_PRE;
+ l |= prescaler << 2;
+ }
omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
}
-unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)
+void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
+ unsigned int value)
{
- return omap_dm_timer_read_reg(timer, OMAP_TIMER_COUNTER_REG);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG, value);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, value);
}
-void omap_dm_timer_reset_counter(struct omap_dm_timer *timer)
+unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)
{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, 0);
+ unsigned int l;
+
+ l = omap_dm_timer_read_reg(timer, OMAP_TIMER_STAT_REG);
+
+ return l;
}
-void omap_dm_timer_set_load(struct omap_dm_timer *timer, unsigned int load)
+void omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)
{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG, load);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG, value);
}
-void omap_dm_timer_set_match(struct omap_dm_timer *timer, unsigned int match)
+unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)
{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG, match);
+ unsigned int l;
+
+ l = omap_dm_timer_read_reg(timer, OMAP_TIMER_COUNTER_REG);
+
+ return l;
}
-void omap_dm_timer_enable_compare(struct omap_dm_timer *timer)
+void omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)
{
- u32 l;
-
- l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
- l |= OMAP_TIMER_CTRL_CE;
- omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, value);
}
+int omap_dm_timers_active(void)
+{
+ int i;
+
+ for (i = 0; i < dm_timer_count; i++) {
+ struct omap_dm_timer *timer;
+
+ timer = &dm_timers[i];
+
+ if (!timer->enabled)
+ continue;
+
+ if (omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG) &
+ OMAP_TIMER_CTRL_ST) {
+ return 1;
+ }
+ }
+ return 0;
+}
-static inline void __dm_timer_init(void)
+int omap_dm_timer_init(void)
{
struct omap_dm_timer *timer;
+ int i;
+
+ if (!(cpu_is_omap16xx() || cpu_is_omap24xx()))
+ return -ENODEV;
spin_lock_init(&dm_timer_lock);
- INIT_LIST_HEAD(&dm_timer_info.unused_timers);
- INIT_LIST_HEAD(&dm_timer_info.reserved_timers);
-
- timer = &dm_timers[0];
- while (timer->base) {
- list_add_tail((struct list_head *)timer, &dm_timer_info.unused_timers);
- omap_dm_timer_reset(timer);
- timer++;
+#ifdef CONFIG_ARCH_OMAP2
+ for (i = 0; i < ARRAY_SIZE(dm_source_names); i++) {
+ dm_source_clocks[i] = clk_get(NULL, dm_source_names[i]);
+ BUG_ON(dm_source_clocks[i] == NULL);
+ }
+#endif
+
+ for (i = 0; i < dm_timer_count; i++) {
+#ifdef CONFIG_ARCH_OMAP2
+ char clk_name[16];
+#endif
+
+ timer = &dm_timers[i];
+ timer->io_base = (void __iomem *) io_p2v(timer->phys_base);
+#ifdef CONFIG_ARCH_OMAP2
+ sprintf(clk_name, "gpt%d_ick", i + 1);
+ timer->iclk = clk_get(NULL, clk_name);
+ sprintf(clk_name, "gpt%d_fck", i + 1);
+ timer->fclk = clk_get(NULL, clk_name);
+#endif
}
-}
-static int __init omap_dm_timer_init(void)
-{
- if (cpu_is_omap16xx())
- __dm_timer_init();
return 0;
}
-
-arch_initcall(omap_dm_timer_init);
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index 305e9b990b71..56acb8720f78 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -1,4 +1,3 @@
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index d3c8ea7eecfd..f55f99ae58ae 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -11,7 +11,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/sched.h>
@@ -95,6 +94,8 @@
#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
#define OMAP24XX_GPIO_IRQENABLE1 0x001c
#define OMAP24XX_GPIO_CTRL 0x0030
#define OMAP24XX_GPIO_OE 0x0034
@@ -111,8 +112,6 @@
#define OMAP24XX_GPIO_CLEARDATAOUT 0x0090
#define OMAP24XX_GPIO_SETDATAOUT 0x0094
-#define OMAP_MPUIO_MASK (~OMAP_MAX_GPIO_LINES & 0xff)
-
struct gpio_bank {
void __iomem *base;
u16 irq;
@@ -217,11 +216,13 @@ static inline int gpio_valid(int gpio)
{
if (gpio < 0)
return -1;
+#ifndef CONFIG_ARCH_OMAP24XX
if (OMAP_GPIO_IS_MPUIO(gpio)) {
- if ((gpio & OMAP_MPUIO_MASK) > 16)
+ if (gpio >= OMAP_MAX_GPIO_LINES + 16)
return -1;
return 0;
}
+#endif
#ifdef CONFIG_ARCH_OMAP15XX
if (cpu_is_omap15xx() && gpio < 16)
return 0;
@@ -530,6 +531,10 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
return;
}
__raw_writel(gpio_mask, reg);
+
+ /* Workaround for clearing DSP GPIO interrupts to allow retention */
+ if (cpu_is_omap2420())
+ __raw_writel(gpio_mask, bank->base + OMAP24XX_GPIO_IRQSTATUS2);
}
static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio)
@@ -537,6 +542,49 @@ static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio)
_clear_gpio_irqbank(bank, 1 << get_gpio_index(gpio));
}
+static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank)
+{
+ void __iomem *reg = bank->base;
+ int inv = 0;
+ u32 l;
+ u32 mask;
+
+ switch (bank->method) {
+ case METHOD_MPUIO:
+ reg += OMAP_MPUIO_GPIO_MASKIT;
+ mask = 0xffff;
+ inv = 1;
+ break;
+ case METHOD_GPIO_1510:
+ reg += OMAP1510_GPIO_INT_MASK;
+ mask = 0xffff;
+ inv = 1;
+ break;
+ case METHOD_GPIO_1610:
+ reg += OMAP1610_GPIO_IRQENABLE1;
+ mask = 0xffff;
+ break;
+ case METHOD_GPIO_730:
+ reg += OMAP730_GPIO_INT_MASK;
+ mask = 0xffffffff;
+ inv = 1;
+ break;
+ case METHOD_GPIO_24XX:
+ reg += OMAP24XX_GPIO_IRQENABLE1;
+ mask = 0xffffffff;
+ break;
+ default:
+ BUG();
+ return 0;
+ }
+
+ l = __raw_readl(reg);
+ if (inv)
+ l = ~l;
+ l &= mask;
+ return l;
+}
+
static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enable)
{
void __iomem *reg = bank->base;
@@ -620,6 +668,14 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable)
}
}
+static void _reset_gpio(struct gpio_bank *bank, int gpio)
+{
+ _set_gpio_direction(bank, get_gpio_index(gpio), 1);
+ _set_gpio_irqenable(bank, gpio, 0);
+ _clear_gpio_irqstatus(bank, gpio);
+ _set_gpio_triggering(bank, get_gpio_index(gpio), IRQT_NOEDGE);
+}
+
/* Use disable_irq_wake() and enable_irq_wake() functions from drivers */
static int gpio_wake_enable(unsigned int irq, unsigned int enable)
{
@@ -630,9 +686,7 @@ static int gpio_wake_enable(unsigned int irq, unsigned int enable)
if (check_gpio(gpio) < 0)
return -ENODEV;
bank = get_gpio_bank(gpio);
- spin_lock(&bank->lock);
retval = _set_gpio_wakeup(bank, get_gpio_index(gpio), enable);
- spin_unlock(&bank->lock);
return retval;
}
@@ -654,7 +708,9 @@ int omap_request_gpio(int gpio)
}
bank->reserved_map |= (1 << get_gpio_index(gpio));
- /* Set trigger to none. You need to enable the trigger after request_irq */
+ /* Set trigger to none. You need to enable the desired trigger with
+ * request_irq() or set_irq_type().
+ */
_set_gpio_triggering(bank, get_gpio_index(gpio), IRQT_NOEDGE);
#ifdef CONFIG_ARCH_OMAP15XX
@@ -714,9 +770,7 @@ void omap_free_gpio(int gpio)
}
#endif
bank->reserved_map &= ~(1 << get_gpio_index(gpio));
- _set_gpio_direction(bank, get_gpio_index(gpio), 1);
- _set_gpio_irqenable(bank, gpio, 0);
- _clear_gpio_irqstatus(bank, gpio);
+ _reset_gpio(bank, gpio);
spin_unlock(&bank->lock);
}
@@ -736,10 +790,12 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
u32 isr;
unsigned int gpio_irq;
struct gpio_bank *bank;
+ u32 retrigger = 0;
+ int unmasked = 0;
desc->chip->ack(irq);
- bank = (struct gpio_bank *) desc->data;
+ bank = get_irq_data(irq);
if (bank->method == METHOD_MPUIO)
isr_reg = bank->base + OMAP_MPUIO_GPIO_INT;
#ifdef CONFIG_ARCH_OMAP15XX
@@ -760,18 +816,22 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
#endif
while(1) {
u32 isr_saved, level_mask = 0;
+ u32 enabled;
- isr_saved = isr = __raw_readl(isr_reg);
+ enabled = _get_gpio_irqbank_mask(bank);
+ isr_saved = isr = __raw_readl(isr_reg) & enabled;
if (cpu_is_omap15xx() && (bank->method == METHOD_MPUIO))
isr &= 0x0000ffff;
- if (cpu_is_omap24xx())
+ if (cpu_is_omap24xx()) {
level_mask =
__raw_readl(bank->base +
OMAP24XX_GPIO_LEVELDETECT0) |
__raw_readl(bank->base +
OMAP24XX_GPIO_LEVELDETECT1);
+ level_mask &= enabled;
+ }
/* clear edge sensitive interrupts before handler(s) are
called so that we don't miss any interrupt occurred while
@@ -782,19 +842,55 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
/* if there is only edge sensitive GPIO pin interrupts
configured, we could unmask GPIO bank interrupt immediately */
- if (!level_mask)
+ if (!level_mask && !unmasked) {
+ unmasked = 1;
desc->chip->unmask(irq);
+ }
+ isr |= retrigger;
+ retrigger = 0;
if (!isr)
break;
gpio_irq = bank->virtual_irq_start;
for (; isr != 0; isr >>= 1, gpio_irq++) {
struct irqdesc *d;
+ int irq_mask;
if (!(isr & 1))
continue;
d = irq_desc + gpio_irq;
+ /* Don't run the handler if it's already running
+ * or was disabled lazely.
+ */
+ if (unlikely((d->depth ||
+ (d->status & IRQ_INPROGRESS)))) {
+ irq_mask = 1 <<
+ (gpio_irq - bank->virtual_irq_start);
+ /* The unmasking will be done by
+ * enable_irq in case it is disabled or
+ * after returning from the handler if
+ * it's already running.
+ */
+ _enable_gpio_irqbank(bank, irq_mask, 0);
+ if (!d->depth) {
+ /* Level triggered interrupts
+ * won't ever be reentered
+ */
+ BUG_ON(level_mask & irq_mask);
+ d->status |= IRQ_PENDING;
+ }
+ continue;
+ }
+
desc_handle_irq(gpio_irq, d, regs);
+
+ if (unlikely((d->status & IRQ_PENDING) && !d->depth)) {
+ irq_mask = 1 <<
+ (gpio_irq - bank->virtual_irq_start);
+ d->status &= ~IRQ_PENDING;
+ _enable_gpio_irqbank(bank, irq_mask, 1);
+ retrigger |= irq_mask;
+ }
}
if (cpu_is_omap24xx()) {
@@ -804,13 +900,22 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
_enable_gpio_irqbank(bank, isr_saved & level_mask, 1);
}
- /* if bank has any level sensitive GPIO pin interrupt
- configured, we must unmask the bank interrupt only after
- handler(s) are executed in order to avoid spurious bank
- interrupt */
- if (level_mask)
- desc->chip->unmask(irq);
}
+ /* if bank has any level sensitive GPIO pin interrupt
+ configured, we must unmask the bank interrupt only after
+ handler(s) are executed in order to avoid spurious bank
+ interrupt */
+ if (!unmasked)
+ desc->chip->unmask(irq);
+
+}
+
+static void gpio_irq_shutdown(unsigned int irq)
+{
+ unsigned int gpio = irq - IH_GPIO_BASE;
+ struct gpio_bank *bank = get_gpio_bank(gpio);
+
+ _reset_gpio(bank, gpio);
}
static void gpio_ack_irq(unsigned int irq)
@@ -859,7 +964,9 @@ static void mpuio_unmask_irq(unsigned int irq)
_set_gpio_irqenable(bank, gpio, 1);
}
-static struct irqchip gpio_irq_chip = {
+static struct irq_chip gpio_irq_chip = {
+ .name = "GPIO",
+ .shutdown = gpio_irq_shutdown,
.ack = gpio_ack_irq,
.mask = gpio_mask_irq,
.unmask = gpio_unmask_irq,
@@ -867,10 +974,11 @@ static struct irqchip gpio_irq_chip = {
.set_wake = gpio_wake_enable,
};
-static struct irqchip mpuio_irq_chip = {
+static struct irq_chip mpuio_irq_chip = {
+ .name = "MPUIO",
.ack = mpuio_ack_irq,
.mask = mpuio_mask_irq,
- .unmask = mpuio_unmask_irq
+ .unmask = mpuio_unmask_irq
};
static int initialized;
@@ -898,7 +1006,7 @@ static int __init _omap_gpio_init(void)
else
clk_enable(gpio_ick);
gpio_fck = clk_get(NULL, "gpios_fck");
- if (IS_ERR(gpio_ick))
+ if (IS_ERR(gpio_fck))
printk("Could not get gpios_fck\n");
else
clk_enable(gpio_fck);
@@ -1057,8 +1165,8 @@ static int omap_gpio_resume(struct sys_device *dev)
wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA;
break;
case METHOD_GPIO_24XX:
- wake_clear = bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA;
- wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA;
+ wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
+ wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA;
break;
default:
continue;
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 196aac3ac329..ade9a0fa6ef6 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -75,8 +75,6 @@ static struct clk *mcbsp1_ick = 0;
static struct clk *mcbsp1_fck = 0;
static struct clk *mcbsp2_ick = 0;
static struct clk *mcbsp2_fck = 0;
-static struct clk *sys_ck = 0;
-static struct clk *sys_clkout = 0;
#endif
static void omap_mcbsp_dump_reg(u8 id)
@@ -232,7 +230,6 @@ static void omap2_mcbsp2_mux_setup(void)
omap_cfg_reg(W15_24XX_MCBSP2_DR);
omap_cfg_reg(V15_24XX_MCBSP2_DX);
omap_cfg_reg(V14_24XX_GPIO117);
- omap_cfg_reg(W14_24XX_SYS_CLKOUT);
}
#endif
@@ -984,13 +981,7 @@ static int __init omap_mcbsp_init(void)
if (cpu_is_omap24xx()) {
mcbsp_info = mcbsp_24xx;
mcbsp_count = ARRAY_SIZE(mcbsp_24xx);
-
- /* REVISIT: where's the right place? */
omap2_mcbsp2_mux_setup();
- sys_ck = clk_get(0, "sys_ck");
- sys_clkout = clk_get(0, "sys_clkout");
- clk_set_parent(sys_clkout, sys_ck);
- clk_enable(sys_clkout);
}
#endif
for (i = 0; i < OMAP_MAX_MCBSP_COUNT ; i++) {
diff --git a/arch/arm/plat-omap/mux.c b/arch/arm/plat-omap/mux.c
index 8c1c016aa689..042105ac30b8 100644
--- a/arch/arm/plat-omap/mux.c
+++ b/arch/arm/plat-omap/mux.c
@@ -22,7 +22,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
diff --git a/arch/arm/plat-omap/ocpi.c b/arch/arm/plat-omap/ocpi.c
index 37792d43738b..b5d307026c82 100644
--- a/arch/arm/plat-omap/ocpi.c
+++ b/arch/arm/plat-omap/ocpi.c
@@ -23,7 +23,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
diff --git a/arch/arm/plat-omap/pm.c b/arch/arm/plat-omap/pm.c
deleted file mode 100644
index 1a24e2c10714..000000000000
--- a/arch/arm/plat-omap/pm.c
+++ /dev/null
@@ -1,670 +0,0 @@
-/*
- * linux/arch/arm/plat-omap/pm.c
- *
- * OMAP Power Management Routines
- *
- * Original code for the SA11x0:
- * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
- *
- * Modified for the PXA250 by Nicolas Pitre:
- * Copyright (c) 2002 Monta Vista Software, Inc.
- *
- * Modified for the OMAP1510 by David Singleton:
- * Copyright (c) 2002 Monta Vista Software, Inc.
- *
- * Cleanup 2004 for OMAP1510/1610 by Dirk Behme <dirk.behme@de.bosch.com>
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/pm.h>
-#include <linux/sched.h>
-#include <linux/proc_fs.h>
-#include <linux/pm.h>
-#include <linux/interrupt.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach/time.h>
-#include <asm/mach/irq.h>
-
-#include <asm/mach-types.h>
-#include <asm/arch/irqs.h>
-#include <asm/arch/tc.h>
-#include <asm/arch/pm.h>
-#include <asm/arch/mux.h>
-#include <asm/arch/tps65010.h>
-#include <asm/arch/dsp_common.h>
-
-#include <asm/arch/clock.h>
-#include <asm/arch/sram.h>
-
-static unsigned int arm_sleep_save[ARM_SLEEP_SAVE_SIZE];
-static unsigned short ulpd_sleep_save[ULPD_SLEEP_SAVE_SIZE];
-static unsigned int mpui730_sleep_save[MPUI730_SLEEP_SAVE_SIZE];
-static unsigned int mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_SIZE];
-static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE];
-
-static void (*omap_sram_idle)(void) = NULL;
-static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
-
-/*
- * Let's power down on idle, but only if we are really
- * idle, because once we start down the path of
- * going idle we continue to do idle even if we get
- * a clock tick interrupt . .
- */
-void omap_pm_idle(void)
-{
- unsigned int mask32 = 0;
-
- /*
- * If the DSP is being used let's just idle the CPU, the overhead
- * to wake up from Big Sleep is big, milliseconds versus micro
- * seconds for wait for interrupt.
- */
-
- local_irq_disable();
- local_fiq_disable();
- if (need_resched()) {
- local_fiq_enable();
- local_irq_enable();
- return;
- }
- mask32 = omap_readl(ARM_SYSST);
-
- /*
- * Prevent the ULPD from entering low power state by setting
- * POWER_CTRL_REG:4 = 0
- */
- omap_writew(omap_readw(ULPD_POWER_CTRL) &
- ~ULPD_DEEP_SLEEP_TRANSITION_EN, ULPD_POWER_CTRL);
-
- /*
- * Since an interrupt may set up a timer, we don't want to
- * reprogram the hardware timer with interrupts enabled.
- * Re-enable interrupts only after returning from idle.
- */
- timer_dyn_reprogram();
-
- if ((mask32 & DSP_IDLE) == 0) {
- __asm__ volatile ("mcr p15, 0, r0, c7, c0, 4");
- } else
- omap_sram_idle();
-
- local_fiq_enable();
- local_irq_enable();
-}
-
-/*
- * Configuration of the wakeup event is board specific. For the
- * moment we put it into this helper function. Later it may move
- * to board specific files.
- */
-static void omap_pm_wakeup_setup(void)
-{
- u32 level1_wake = 0;
- u32 level2_wake = OMAP_IRQ_BIT(INT_UART2);
-
- /*
- * Turn off all interrupts except GPIO bank 1, L1-2nd level cascade,
- * and the L2 wakeup interrupts: keypad and UART2. Note that the
- * drivers must still separately call omap_set_gpio_wakeup() to
- * wake up to a GPIO interrupt.
- */
- if (cpu_is_omap730())
- level1_wake = OMAP_IRQ_BIT(INT_730_GPIO_BANK1) |
- OMAP_IRQ_BIT(INT_730_IH2_IRQ);
- else if (cpu_is_omap1510())
- level1_wake = OMAP_IRQ_BIT(INT_GPIO_BANK1) |
- OMAP_IRQ_BIT(INT_1510_IH2_IRQ);
- else if (cpu_is_omap16xx())
- level1_wake = OMAP_IRQ_BIT(INT_GPIO_BANK1) |
- OMAP_IRQ_BIT(INT_1610_IH2_IRQ);
-
- omap_writel(~level1_wake, OMAP_IH1_MIR);
-
- if (cpu_is_omap730()) {
- omap_writel(~level2_wake, OMAP_IH2_0_MIR);
- omap_writel(~(OMAP_IRQ_BIT(INT_730_WAKE_UP_REQ) | OMAP_IRQ_BIT(INT_730_MPUIO_KEYPAD)), OMAP_IH2_1_MIR);
- } else if (cpu_is_omap1510()) {
- level2_wake |= OMAP_IRQ_BIT(INT_KEYBOARD);
- omap_writel(~level2_wake, OMAP_IH2_MIR);
- } else if (cpu_is_omap16xx()) {
- level2_wake |= OMAP_IRQ_BIT(INT_KEYBOARD);
- omap_writel(~level2_wake, OMAP_IH2_0_MIR);
-
- /* INT_1610_WAKE_UP_REQ is needed for GPIO wakeup... */
- omap_writel(~OMAP_IRQ_BIT(INT_1610_WAKE_UP_REQ), OMAP_IH2_1_MIR);
- omap_writel(~0x0, OMAP_IH2_2_MIR);
- omap_writel(~0x0, OMAP_IH2_3_MIR);
- }
-
- /* New IRQ agreement, recalculate in cascade order */
- omap_writel(1, OMAP_IH2_CONTROL);
- omap_writel(1, OMAP_IH1_CONTROL);
-}
-
-void omap_pm_suspend(void)
-{
- unsigned long arg0 = 0, arg1 = 0;
-
- printk("PM: OMAP%x is trying to enter deep sleep...\n", system_rev);
-
- omap_serial_wake_trigger(1);
-
- if (machine_is_omap_osk()) {
- /* Stop LED1 (D9) blink */
- tps65010_set_led(LED1, OFF);
- }
-
- omap_writew(0xffff, ULPD_SOFT_DISABLE_REQ_REG);
-
- /*
- * Step 1: turn off interrupts (FIXME: NOTE: already disabled)
- */
-
- local_irq_disable();
- local_fiq_disable();
-
- /*
- * Step 2: save registers
- *
- * The omap is a strange/beautiful device. The caches, memory
- * and register state are preserved across power saves.
- * We have to save and restore very little register state to
- * idle the omap.
- *
- * Save interrupt, MPUI, ARM and UPLD control registers.
- */
-
- if (cpu_is_omap730()) {
- MPUI730_SAVE(OMAP_IH1_MIR);
- MPUI730_SAVE(OMAP_IH2_0_MIR);
- MPUI730_SAVE(OMAP_IH2_1_MIR);
- MPUI730_SAVE(MPUI_CTRL);
- MPUI730_SAVE(MPUI_DSP_BOOT_CONFIG);
- MPUI730_SAVE(MPUI_DSP_API_CONFIG);
- MPUI730_SAVE(EMIFS_CONFIG);
- MPUI730_SAVE(EMIFF_SDRAM_CONFIG);
-
- } else if (cpu_is_omap1510()) {
- MPUI1510_SAVE(OMAP_IH1_MIR);
- MPUI1510_SAVE(OMAP_IH2_MIR);
- MPUI1510_SAVE(MPUI_CTRL);
- MPUI1510_SAVE(MPUI_DSP_BOOT_CONFIG);
- MPUI1510_SAVE(MPUI_DSP_API_CONFIG);
- MPUI1510_SAVE(EMIFS_CONFIG);
- MPUI1510_SAVE(EMIFF_SDRAM_CONFIG);
- } else if (cpu_is_omap16xx()) {
- MPUI1610_SAVE(OMAP_IH1_MIR);
- MPUI1610_SAVE(OMAP_IH2_0_MIR);
- MPUI1610_SAVE(OMAP_IH2_1_MIR);
- MPUI1610_SAVE(OMAP_IH2_2_MIR);
- MPUI1610_SAVE(OMAP_IH2_3_MIR);
- MPUI1610_SAVE(MPUI_CTRL);
- MPUI1610_SAVE(MPUI_DSP_BOOT_CONFIG);
- MPUI1610_SAVE(MPUI_DSP_API_CONFIG);
- MPUI1610_SAVE(EMIFS_CONFIG);
- MPUI1610_SAVE(EMIFF_SDRAM_CONFIG);
- }
-
- ARM_SAVE(ARM_CKCTL);
- ARM_SAVE(ARM_IDLECT1);
- ARM_SAVE(ARM_IDLECT2);
- if (!(cpu_is_omap1510()))
- ARM_SAVE(ARM_IDLECT3);
- ARM_SAVE(ARM_EWUPCT);
- ARM_SAVE(ARM_RSTCT1);
- ARM_SAVE(ARM_RSTCT2);
- ARM_SAVE(ARM_SYSST);
- ULPD_SAVE(ULPD_CLOCK_CTRL);
- ULPD_SAVE(ULPD_STATUS_REQ);
-
- /* (Step 3 removed - we now allow deep sleep by default) */
-
- /*
- * Step 4: OMAP DSP Shutdown
- */
-
-
- /*
- * Step 5: Wakeup Event Setup
- */
-
- omap_pm_wakeup_setup();
-
- /*
- * Step 6: ARM and Traffic controller shutdown
- */
-
- /* disable ARM watchdog */
- omap_writel(0x00F5, OMAP_WDT_TIMER_MODE);
- omap_writel(0x00A0, OMAP_WDT_TIMER_MODE);
-
- /*
- * Step 6b: ARM and Traffic controller shutdown
- *
- * Step 6 continues here. Prepare jump to power management
- * assembly code in internal SRAM.
- *
- * Since the omap_cpu_suspend routine has been copied to
- * SRAM, we'll do an indirect procedure call to it and pass the
- * contents of arm_idlect1 and arm_idlect2 so it can restore
- * them when it wakes up and it will return.
- */
-
- arg0 = arm_sleep_save[ARM_SLEEP_SAVE_ARM_IDLECT1];
- arg1 = arm_sleep_save[ARM_SLEEP_SAVE_ARM_IDLECT2];
-
- /*
- * Step 6c: ARM and Traffic controller shutdown
- *
- * Jump to assembly code. The processor will stay there
- * until wake up.
- */
- omap_sram_suspend(arg0, arg1);
-
- /*
- * If we are here, processor is woken up!
- */
-
- /*
- * Restore ARM state, except ARM_IDLECT1/2 which omap_cpu_suspend did
- */
-
- if (!(cpu_is_omap1510()))
- ARM_RESTORE(ARM_IDLECT3);
- ARM_RESTORE(ARM_CKCTL);
- ARM_RESTORE(ARM_EWUPCT);
- ARM_RESTORE(ARM_RSTCT1);
- ARM_RESTORE(ARM_RSTCT2);
- ARM_RESTORE(ARM_SYSST);
- ULPD_RESTORE(ULPD_CLOCK_CTRL);
- ULPD_RESTORE(ULPD_STATUS_REQ);
-
- if (cpu_is_omap730()) {
- MPUI730_RESTORE(EMIFS_CONFIG);
- MPUI730_RESTORE(EMIFF_SDRAM_CONFIG);
- MPUI730_RESTORE(OMAP_IH1_MIR);
- MPUI730_RESTORE(OMAP_IH2_0_MIR);
- MPUI730_RESTORE(OMAP_IH2_1_MIR);
- } else if (cpu_is_omap1510()) {
- MPUI1510_RESTORE(MPUI_CTRL);
- MPUI1510_RESTORE(MPUI_DSP_BOOT_CONFIG);
- MPUI1510_RESTORE(MPUI_DSP_API_CONFIG);
- MPUI1510_RESTORE(EMIFS_CONFIG);
- MPUI1510_RESTORE(EMIFF_SDRAM_CONFIG);
- MPUI1510_RESTORE(OMAP_IH1_MIR);
- MPUI1510_RESTORE(OMAP_IH2_MIR);
- } else if (cpu_is_omap16xx()) {
- MPUI1610_RESTORE(MPUI_CTRL);
- MPUI1610_RESTORE(MPUI_DSP_BOOT_CONFIG);
- MPUI1610_RESTORE(MPUI_DSP_API_CONFIG);
- MPUI1610_RESTORE(EMIFS_CONFIG);
- MPUI1610_RESTORE(EMIFF_SDRAM_CONFIG);
-
- MPUI1610_RESTORE(OMAP_IH1_MIR);
- MPUI1610_RESTORE(OMAP_IH2_0_MIR);
- MPUI1610_RESTORE(OMAP_IH2_1_MIR);
- MPUI1610_RESTORE(OMAP_IH2_2_MIR);
- MPUI1610_RESTORE(OMAP_IH2_3_MIR);
- }
-
- omap_writew(0, ULPD_SOFT_DISABLE_REQ_REG);
-
- /*
- * Reenable interrupts
- */
-
- local_irq_enable();
- local_fiq_enable();
-
- omap_serial_wake_trigger(0);
-
- printk("PM: OMAP%x is re-starting from deep sleep...\n", system_rev);
-
- if (machine_is_omap_osk()) {
- /* Let LED1 (D9) blink again */
- tps65010_set_led(LED1, BLINK);
- }
-}
-
-#if defined(DEBUG) && defined(CONFIG_PROC_FS)
-static int g_read_completed;
-
-/*
- * Read system PM registers for debugging
- */
-static int omap_pm_read_proc(
- char *page_buffer,
- char **my_first_byte,
- off_t virtual_start,
- int length,
- int *eof,
- void *data)
-{
- int my_buffer_offset = 0;
- char * const my_base = page_buffer;
-
- ARM_SAVE(ARM_CKCTL);
- ARM_SAVE(ARM_IDLECT1);
- ARM_SAVE(ARM_IDLECT2);
- if (!(cpu_is_omap1510()))
- ARM_SAVE(ARM_IDLECT3);
- ARM_SAVE(ARM_EWUPCT);
- ARM_SAVE(ARM_RSTCT1);
- ARM_SAVE(ARM_RSTCT2);
- ARM_SAVE(ARM_SYSST);
-
- ULPD_SAVE(ULPD_IT_STATUS);
- ULPD_SAVE(ULPD_CLOCK_CTRL);
- ULPD_SAVE(ULPD_SOFT_REQ);
- ULPD_SAVE(ULPD_STATUS_REQ);
- ULPD_SAVE(ULPD_DPLL_CTRL);
- ULPD_SAVE(ULPD_POWER_CTRL);
-
- if (cpu_is_omap730()) {
- MPUI730_SAVE(MPUI_CTRL);
- MPUI730_SAVE(MPUI_DSP_STATUS);
- MPUI730_SAVE(MPUI_DSP_BOOT_CONFIG);
- MPUI730_SAVE(MPUI_DSP_API_CONFIG);
- MPUI730_SAVE(EMIFF_SDRAM_CONFIG);
- MPUI730_SAVE(EMIFS_CONFIG);
- } else if (cpu_is_omap1510()) {
- MPUI1510_SAVE(MPUI_CTRL);
- MPUI1510_SAVE(MPUI_DSP_STATUS);
- MPUI1510_SAVE(MPUI_DSP_BOOT_CONFIG);
- MPUI1510_SAVE(MPUI_DSP_API_CONFIG);
- MPUI1510_SAVE(EMIFF_SDRAM_CONFIG);
- MPUI1510_SAVE(EMIFS_CONFIG);
- } else if (cpu_is_omap16xx()) {
- MPUI1610_SAVE(MPUI_CTRL);
- MPUI1610_SAVE(MPUI_DSP_STATUS);
- MPUI1610_SAVE(MPUI_DSP_BOOT_CONFIG);
- MPUI1610_SAVE(MPUI_DSP_API_CONFIG);
- MPUI1610_SAVE(EMIFF_SDRAM_CONFIG);
- MPUI1610_SAVE(EMIFS_CONFIG);
- }
-
- if (virtual_start == 0) {
- g_read_completed = 0;
-
- my_buffer_offset += sprintf(my_base + my_buffer_offset,
- "ARM_CKCTL_REG: 0x%-8x \n"
- "ARM_IDLECT1_REG: 0x%-8x \n"
- "ARM_IDLECT2_REG: 0x%-8x \n"
- "ARM_IDLECT3_REG: 0x%-8x \n"
- "ARM_EWUPCT_REG: 0x%-8x \n"
- "ARM_RSTCT1_REG: 0x%-8x \n"
- "ARM_RSTCT2_REG: 0x%-8x \n"
- "ARM_SYSST_REG: 0x%-8x \n"
- "ULPD_IT_STATUS_REG: 0x%-4x \n"
- "ULPD_CLOCK_CTRL_REG: 0x%-4x \n"
- "ULPD_SOFT_REQ_REG: 0x%-4x \n"
- "ULPD_DPLL_CTRL_REG: 0x%-4x \n"
- "ULPD_STATUS_REQ_REG: 0x%-4x \n"
- "ULPD_POWER_CTRL_REG: 0x%-4x \n",
- ARM_SHOW(ARM_CKCTL),
- ARM_SHOW(ARM_IDLECT1),
- ARM_SHOW(ARM_IDLECT2),
- ARM_SHOW(ARM_IDLECT3),
- ARM_SHOW(ARM_EWUPCT),
- ARM_SHOW(ARM_RSTCT1),
- ARM_SHOW(ARM_RSTCT2),
- ARM_SHOW(ARM_SYSST),
- ULPD_SHOW(ULPD_IT_STATUS),
- ULPD_SHOW(ULPD_CLOCK_CTRL),
- ULPD_SHOW(ULPD_SOFT_REQ),
- ULPD_SHOW(ULPD_DPLL_CTRL),
- ULPD_SHOW(ULPD_STATUS_REQ),
- ULPD_SHOW(ULPD_POWER_CTRL));
-
- if (cpu_is_omap730()) {
- my_buffer_offset += sprintf(my_base + my_buffer_offset,
- "MPUI730_CTRL_REG 0x%-8x \n"
- "MPUI730_DSP_STATUS_REG: 0x%-8x \n"
- "MPUI730_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
- "MPUI730_DSP_API_CONFIG_REG: 0x%-8x \n"
- "MPUI730_SDRAM_CONFIG_REG: 0x%-8x \n"
- "MPUI730_EMIFS_CONFIG_REG: 0x%-8x \n",
- MPUI730_SHOW(MPUI_CTRL),
- MPUI730_SHOW(MPUI_DSP_STATUS),
- MPUI730_SHOW(MPUI_DSP_BOOT_CONFIG),
- MPUI730_SHOW(MPUI_DSP_API_CONFIG),
- MPUI730_SHOW(EMIFF_SDRAM_CONFIG),
- MPUI730_SHOW(EMIFS_CONFIG));
- } else if (cpu_is_omap1510()) {
- my_buffer_offset += sprintf(my_base + my_buffer_offset,
- "MPUI1510_CTRL_REG 0x%-8x \n"
- "MPUI1510_DSP_STATUS_REG: 0x%-8x \n"
- "MPUI1510_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
- "MPUI1510_DSP_API_CONFIG_REG: 0x%-8x \n"
- "MPUI1510_SDRAM_CONFIG_REG: 0x%-8x \n"
- "MPUI1510_EMIFS_CONFIG_REG: 0x%-8x \n",
- MPUI1510_SHOW(MPUI_CTRL),
- MPUI1510_SHOW(MPUI_DSP_STATUS),
- MPUI1510_SHOW(MPUI_DSP_BOOT_CONFIG),
- MPUI1510_SHOW(MPUI_DSP_API_CONFIG),
- MPUI1510_SHOW(EMIFF_SDRAM_CONFIG),
- MPUI1510_SHOW(EMIFS_CONFIG));
- } else if (cpu_is_omap16xx()) {
- my_buffer_offset += sprintf(my_base + my_buffer_offset,
- "MPUI1610_CTRL_REG 0x%-8x \n"
- "MPUI1610_DSP_STATUS_REG: 0x%-8x \n"
- "MPUI1610_DSP_BOOT_CONFIG_REG: 0x%-8x \n"
- "MPUI1610_DSP_API_CONFIG_REG: 0x%-8x \n"
- "MPUI1610_SDRAM_CONFIG_REG: 0x%-8x \n"
- "MPUI1610_EMIFS_CONFIG_REG: 0x%-8x \n",
- MPUI1610_SHOW(MPUI_CTRL),
- MPUI1610_SHOW(MPUI_DSP_STATUS),
- MPUI1610_SHOW(MPUI_DSP_BOOT_CONFIG),
- MPUI1610_SHOW(MPUI_DSP_API_CONFIG),
- MPUI1610_SHOW(EMIFF_SDRAM_CONFIG),
- MPUI1610_SHOW(EMIFS_CONFIG));
- }
-
- g_read_completed++;
- } else if (g_read_completed >= 1) {
- *eof = 1;
- return 0;
- }
- g_read_completed++;
-
- *my_first_byte = page_buffer;
- return my_buffer_offset;
-}
-
-static void omap_pm_init_proc(void)
-{
- struct proc_dir_entry *entry;
-
- entry = create_proc_read_entry("driver/omap_pm",
- S_IWUSR | S_IRUGO, NULL,
- omap_pm_read_proc, NULL);
-}
-
-#endif /* DEBUG && CONFIG_PROC_FS */
-
-/*
- * omap_pm_prepare - Do preliminary suspend work.
- * @state: suspend state we're entering.
- *
- */
-//#include <asm/hardware.h>
-
-static int omap_pm_prepare(suspend_state_t state)
-{
- int error = 0;
-
- switch (state)
- {
- case PM_SUSPEND_STANDBY:
- case PM_SUSPEND_MEM:
- break;
-
- case PM_SUSPEND_DISK:
- return -ENOTSUPP;
-
- default:
- return -EINVAL;
- }
-
- return error;
-}
-
-
-/*
- * omap_pm_enter - Actually enter a sleep state.
- * @state: State we're entering.
- *
- */
-
-static int omap_pm_enter(suspend_state_t state)
-{
- switch (state)
- {
- case PM_SUSPEND_STANDBY:
- case PM_SUSPEND_MEM:
- omap_pm_suspend();
- break;
-
- case PM_SUSPEND_DISK:
- return -ENOTSUPP;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-
-/**
- * omap_pm_finish - Finish up suspend sequence.
- * @state: State we're coming out of.
- *
- * This is called after we wake back up (or if entering the sleep state
- * failed).
- */
-
-static int omap_pm_finish(suspend_state_t state)
-{
- return 0;
-}
-
-
-static irqreturn_t omap_wakeup_interrupt(int irq, void * dev,
- struct pt_regs * regs)
-{
- return IRQ_HANDLED;
-}
-
-static struct irqaction omap_wakeup_irq = {
- .name = "peripheral wakeup",
- .flags = SA_INTERRUPT,
- .handler = omap_wakeup_interrupt
-};
-
-
-
-static struct pm_ops omap_pm_ops ={
- .pm_disk_mode = 0,
- .prepare = omap_pm_prepare,
- .enter = omap_pm_enter,
- .finish = omap_pm_finish,
-};
-
-static int __init omap_pm_init(void)
-{
- printk("Power Management for TI OMAP.\n");
- /*
- * We copy the assembler sleep/wakeup routines to SRAM.
- * These routines need to be in SRAM as that's the only
- * memory the MPU can see when it wakes up.
- */
- if (cpu_is_omap730()) {
- omap_sram_idle = omap_sram_push(omap730_idle_loop_suspend,
- omap730_idle_loop_suspend_sz);
- omap_sram_suspend = omap_sram_push(omap730_cpu_suspend,
- omap730_cpu_suspend_sz);
- } else if (cpu_is_omap1510()) {
- omap_sram_idle = omap_sram_push(omap1510_idle_loop_suspend,
- omap1510_idle_loop_suspend_sz);
- omap_sram_suspend = omap_sram_push(omap1510_cpu_suspend,
- omap1510_cpu_suspend_sz);
- } else if (cpu_is_omap16xx()) {
- omap_sram_idle = omap_sram_push(omap1610_idle_loop_suspend,
- omap1610_idle_loop_suspend_sz);
- omap_sram_suspend = omap_sram_push(omap1610_cpu_suspend,
- omap1610_cpu_suspend_sz);
- }
-
- if (omap_sram_idle == NULL || omap_sram_suspend == NULL) {
- printk(KERN_ERR "PM not initialized: Missing SRAM support\n");
- return -ENODEV;
- }
-
- pm_idle = omap_pm_idle;
-
- if (cpu_is_omap730())
- setup_irq(INT_730_WAKE_UP_REQ, &omap_wakeup_irq);
- else if (cpu_is_omap16xx())
- setup_irq(INT_1610_WAKE_UP_REQ, &omap_wakeup_irq);
-
-#if 0
- /* --- BEGIN BOARD-DEPENDENT CODE --- */
- /* Sleepx mask direction */
- omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
- /* Unmask sleepx signal */
- omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
- /* --- END BOARD-DEPENDENT CODE --- */
-#endif
-
- /* Program new power ramp-up time
- * (0 for most boards since we don't lower voltage when in deep sleep)
- */
- omap_writew(ULPD_SETUP_ANALOG_CELL_3_VAL, ULPD_SETUP_ANALOG_CELL_3);
-
- /* Setup ULPD POWER_CTRL_REG - enter deep sleep whenever possible */
- omap_writew(ULPD_POWER_CTRL_REG_VAL, ULPD_POWER_CTRL);
-
- /* Configure IDLECT3 */
- if (cpu_is_omap730())
- omap_writel(OMAP730_IDLECT3_VAL, OMAP730_IDLECT3);
- else if (cpu_is_omap16xx())
- omap_writel(OMAP1610_IDLECT3_VAL, OMAP1610_IDLECT3);
-
- pm_set_ops(&omap_pm_ops);
-
-#if defined(DEBUG) && defined(CONFIG_PROC_FS)
- omap_pm_init_proc();
-#endif
-
- if (cpu_is_omap16xx()) {
- /* configure LOW_PWR pin */
- omap_cfg_reg(T20_1610_LOW_PWR);
- }
-
- return 0;
-}
-__initcall(omap_pm_init);
-
diff --git a/arch/arm/plat-omap/sram-fn.S b/arch/arm/plat-omap/sram-fn.S
index 66414cc8e6e3..85cffe2c6266 100644
--- a/arch/arm/plat-omap/sram-fn.S
+++ b/arch/arm/plat-omap/sram-fn.S
@@ -8,7 +8,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/arch/io.h>
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index b7bf09b1b412..19014b2ff4c6 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -11,7 +11,6 @@
* published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@@ -158,14 +157,12 @@ static struct map_desc omap_sram_io_desc[] __initdata = {
{ /* .length gets filled in at runtime */
.virtual = OMAP1_SRAM_VA,
.pfn = __phys_to_pfn(OMAP1_SRAM_PA),
- .type = MT_DEVICE
+ .type = MT_MEMORY
}
};
/*
- * In order to use last 2kB of SRAM on 1611b, we must round the size
- * up to multiple of PAGE_SIZE. We cannot use ioremap for SRAM, as
- * clock init needs SRAM early.
+ * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early.
*/
void __init omap_map_sram(void)
{
@@ -177,16 +174,12 @@ void __init omap_map_sram(void)
if (cpu_is_omap24xx()) {
omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
- if (is_sram_locked())
- base = OMAP2_SRAM_PUB_PA;
- else
- base = OMAP2_SRAM_PA;
+ base = OMAP2_SRAM_PA;
base = ROUND_DOWN(base, PAGE_SIZE);
omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
}
- omap_sram_io_desc[0].length = (omap_sram_size + PAGE_SIZE-1)/PAGE_SIZE;
- omap_sram_io_desc[0].length *= PAGE_SIZE;
+ omap_sram_io_desc[0].length = 1024 * 1024; /* Use section desc */
iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",
diff --git a/arch/arm/plat-omap/timer32k.c b/arch/arm/plat-omap/timer32k.c
index 3461a6c9665c..cf6df3378d37 100644
--- a/arch/arm/plat-omap/timer32k.c
+++ b/arch/arm/plat-omap/timer32k.c
@@ -7,6 +7,7 @@
* Partial timer rewrite and additional dynamic tick timer support by
* Tony Lindgen <tony@atomide.com> and
* Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ * OMAP Dual-mode timer framework support by Timo Teras
*
* MPU timer code based on the older MPU timer code for OMAP
* Copyright (C) 2000 RidgeRun, Inc.
@@ -33,7 +34,6 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
@@ -50,6 +50,7 @@
#include <asm/irq.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
+#include <asm/arch/dmtimer.h>
struct sys_timer omap_timer;
@@ -79,18 +80,6 @@ struct sys_timer omap_timer;
#define OMAP1_32K_TIMER_TVR 0x00
#define OMAP1_32K_TIMER_TCR 0x04
-/* 24xx specific defines */
-#define OMAP2_GP_TIMER_BASE 0x48028000
-#define CM_CLKSEL_WKUP 0x48008440
-#define GP_TIMER_TIDR 0x00
-#define GP_TIMER_TISR 0x18
-#define GP_TIMER_TIER 0x1c
-#define GP_TIMER_TCLR 0x24
-#define GP_TIMER_TCRR 0x28
-#define GP_TIMER_TLDR 0x2c
-#define GP_TIMER_TTGR 0x30
-#define GP_TIMER_TSICR 0x40
-
#define OMAP_32K_TICKS_PER_HZ (32768 / HZ)
/*
@@ -102,54 +91,64 @@ struct sys_timer omap_timer;
#define JIFFIES_TO_HW_TICKS(nr_jiffies, clock_rate) \
(((nr_jiffies) * (clock_rate)) / HZ)
+#if defined(CONFIG_ARCH_OMAP1)
+
static inline void omap_32k_timer_write(int val, int reg)
{
- if (cpu_class_is_omap1())
- omap_writew(val, OMAP1_32K_TIMER_BASE + reg);
-
- if (cpu_is_omap24xx())
- omap_writel(val, OMAP2_GP_TIMER_BASE + reg);
+ omap_writew(val, OMAP1_32K_TIMER_BASE + reg);
}
static inline unsigned long omap_32k_timer_read(int reg)
{
- if (cpu_class_is_omap1())
- return omap_readl(OMAP1_32K_TIMER_BASE + reg) & 0xffffff;
+ return omap_readl(OMAP1_32K_TIMER_BASE + reg) & 0xffffff;
+}
- if (cpu_is_omap24xx())
- return omap_readl(OMAP2_GP_TIMER_BASE + reg);
+static inline void omap_32k_timer_start(unsigned long load_val)
+{
+ if (!load_val)
+ load_val = 1;
+ omap_32k_timer_write(load_val, OMAP1_32K_TIMER_TVR);
+ omap_32k_timer_write(0x0f, OMAP1_32K_TIMER_CR);
}
-/*
- * The 32KHz synchronized timer is an additional timer on 16xx.
- * It is always running.
- */
-static inline unsigned long omap_32k_sync_timer_read(void)
+static inline void omap_32k_timer_stop(void)
{
- return omap_readl(TIMER_32K_SYNCHRONIZED);
+ omap_32k_timer_write(0x0, OMAP1_32K_TIMER_CR);
}
+#define omap_32k_timer_ack_irq()
+
+#elif defined(CONFIG_ARCH_OMAP2)
+
+static struct omap_dm_timer *gptimer;
+
static inline void omap_32k_timer_start(unsigned long load_val)
{
- if (cpu_class_is_omap1()) {
- omap_32k_timer_write(load_val, OMAP1_32K_TIMER_TVR);
- omap_32k_timer_write(0x0f, OMAP1_32K_TIMER_CR);
- }
-
- if (cpu_is_omap24xx()) {
- omap_32k_timer_write(0xffffffff - load_val, GP_TIMER_TCRR);
- omap_32k_timer_write((1 << 1), GP_TIMER_TIER);
- omap_32k_timer_write((1 << 1) | 1, GP_TIMER_TCLR);
- }
+ omap_dm_timer_set_load(gptimer, 1, 0xffffffff - load_val);
+ omap_dm_timer_set_int_enable(gptimer, OMAP_TIMER_INT_OVERFLOW);
+ omap_dm_timer_start(gptimer);
}
static inline void omap_32k_timer_stop(void)
{
- if (cpu_class_is_omap1())
- omap_32k_timer_write(0x0, OMAP1_32K_TIMER_CR);
+ omap_dm_timer_stop(gptimer);
+}
- if (cpu_is_omap24xx())
- omap_32k_timer_write(0x0, GP_TIMER_TCLR);
+static inline void omap_32k_timer_ack_irq(void)
+{
+ u32 status = omap_dm_timer_read_status(gptimer);
+ omap_dm_timer_write_status(gptimer, status);
+}
+
+#endif
+
+/*
+ * The 32KHz synchronized timer is an additional timer on 16xx.
+ * It is always running.
+ */
+static inline unsigned long omap_32k_sync_timer_read(void)
+{
+ return omap_readl(TIMER_32K_SYNCHRONIZED);
}
/*
@@ -195,19 +194,12 @@ unsigned long long sched_clock(void)
* issues with dynamic tick. In the dynamic tick case, we need to lock
* with irqsave.
*/
-static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id,
- struct pt_regs *regs)
+static inline irqreturn_t _omap_32k_timer_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
{
- unsigned long flags;
unsigned long now;
- write_seqlock_irqsave(&xtime_lock, flags);
-
- if (cpu_is_omap24xx()) {
- u32 status = omap_32k_timer_read(GP_TIMER_TISR);
- omap_32k_timer_write(status, GP_TIMER_TISR);
- }
-
+ omap_32k_timer_ack_irq();
now = omap_32k_sync_timer_read();
while ((signed long)(now - omap_32k_last_tick)
@@ -222,6 +214,23 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id,
* continuous timer can be overridden from pm_idle to be longer.
*/
omap_32k_timer_start(omap_32k_last_tick + OMAP_32K_TICKS_PER_HZ - now);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t omap_32k_timer_handler(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ return _omap_32k_timer_interrupt(irq, dev_id, regs);
+}
+
+static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ unsigned long flags;
+
+ write_seqlock_irqsave(&xtime_lock, flags);
+ _omap_32k_timer_interrupt(irq, dev_id, regs);
write_sequnlock_irqrestore(&xtime_lock, flags);
return IRQ_HANDLED;
@@ -237,7 +246,15 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id,
*/
void omap_32k_timer_reprogram(unsigned long next_tick)
{
- omap_32k_timer_start(JIFFIES_TO_HW_TICKS(next_tick, 32768) + 1);
+ unsigned long ticks = JIFFIES_TO_HW_TICKS(next_tick, 32768) + 1;
+ unsigned long now = omap_32k_sync_timer_read();
+ unsigned long idled = now - omap_32k_last_tick;
+
+ if (idled + 1 < ticks)
+ ticks -= idled;
+ else
+ ticks = 1;
+ omap_32k_timer_start(ticks);
}
static struct irqaction omap_32k_timer_irq;
@@ -259,19 +276,16 @@ static struct dyn_tick_timer omap_dyn_tick_timer = {
.enable = omap_32k_timer_enable_dyn_tick,
.disable = omap_32k_timer_disable_dyn_tick,
.reprogram = omap_32k_timer_reprogram,
- .handler = omap_32k_timer_interrupt,
+ .handler = omap_32k_timer_handler,
};
#endif /* CONFIG_NO_IDLE_HZ */
static struct irqaction omap_32k_timer_irq = {
.name = "32KHz timer",
- .flags = SA_INTERRUPT | SA_TIMER,
+ .flags = IRQF_DISABLED | IRQF_TIMER,
.handler = omap_32k_timer_interrupt,
};
-static struct clk * gpt1_ick;
-static struct clk * gpt1_fck;
-
static __init void omap_init_32k_timer(void)
{
#ifdef CONFIG_NO_IDLE_HZ
@@ -280,32 +294,22 @@ static __init void omap_init_32k_timer(void)
if (cpu_class_is_omap1())
setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);
- if (cpu_is_omap24xx())
- setup_irq(37, &omap_32k_timer_irq);
omap_timer.offset = omap_32k_timer_gettimeoffset;
omap_32k_last_tick = omap_32k_sync_timer_read();
+#ifdef CONFIG_ARCH_OMAP2
/* REVISIT: Check 24xx TIOCP_CFG settings after idle works */
if (cpu_is_omap24xx()) {
- omap_32k_timer_write(0, GP_TIMER_TCLR);
- omap_writel(0, CM_CLKSEL_WKUP); /* 32KHz clock source */
-
- gpt1_ick = clk_get(NULL, "gpt1_ick");
- if (IS_ERR(gpt1_ick))
- printk(KERN_ERR "Could not get gpt1_ick\n");
- else
- clk_enable(gpt1_ick);
-
- gpt1_fck = clk_get(NULL, "gpt1_fck");
- if (IS_ERR(gpt1_fck))
- printk(KERN_ERR "Could not get gpt1_fck\n");
- else
- clk_enable(gpt1_fck);
-
- mdelay(100); /* Wait for clocks to stabilize */
-
- omap_32k_timer_write(0x7, GP_TIMER_TISR);
+ gptimer = omap_dm_timer_request_specific(1);
+ BUG_ON(gptimer == NULL);
+
+ omap_dm_timer_set_source(gptimer, OMAP_TIMER_SRC_32_KHZ);
+ setup_irq(omap_dm_timer_get_irq(gptimer), &omap_32k_timer_irq);
+ omap_dm_timer_set_int_enable(gptimer,
+ OMAP_TIMER_INT_CAPTURE | OMAP_TIMER_INT_OVERFLOW |
+ OMAP_TIMER_INT_MATCH);
}
+#endif
omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
}
@@ -317,6 +321,9 @@ static __init void omap_init_32k_timer(void)
*/
static void __init omap_timer_init(void)
{
+#ifdef CONFIG_OMAP_DM_TIMER
+ omap_dm_timer_init();
+#endif
omap_init_32k_timer();
}
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c
index 00afc7a8c2ab..7e8096809be2 100644
--- a/arch/arm/plat-omap/usb.c
+++ b/arch/arm/plat-omap/usb.c
@@ -20,14 +20,13 @@
#undef DEBUG
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/platform_device.h>
-#include <linux/usb_otg.h>
+#include <linux/usb/otg.h>
#include <asm/io.h>
#include <asm/irq.h>
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