diff options
Diffstat (limited to 'arch/arm/mach-msm/dma.c')
| -rw-r--r-- | arch/arm/mach-msm/dma.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/arch/arm/mach-msm/dma.c b/arch/arm/mach-msm/dma.c index 02cae5e2951..fb976246471 100644 --- a/arch/arm/mach-msm/dma.c +++ b/arch/arm/mach-msm/dma.c @@ -18,10 +18,37 @@ #include <linux/io.h> #include <linux/interrupt.h> #include <linux/completion.h> +#include <linux/module.h> #include <mach/dma.h> +#include <mach/msm_iomap.h> #define MSM_DMOV_CHANNEL_COUNT 16 +#define DMOV_SD0(off, ch) (MSM_DMOV_BASE + 0x0000 + (off) + ((ch) << 2)) +#define DMOV_SD1(off, ch) (MSM_DMOV_BASE + 0x0400 + (off) + ((ch) << 2)) +#define DMOV_SD2(off, ch) (MSM_DMOV_BASE + 0x0800 + (off) + ((ch) << 2)) +#define DMOV_SD3(off, ch) (MSM_DMOV_BASE + 0x0C00 + (off) + ((ch) << 2)) + +#if defined(CONFIG_ARCH_MSM7X30) +#define DMOV_SD_AARM DMOV_SD2 +#else +#define DMOV_SD_AARM DMOV_SD3 +#endif + +#define DMOV_CMD_PTR(ch) DMOV_SD_AARM(0x000, ch) +#define DMOV_RSLT(ch) DMOV_SD_AARM(0x040, ch) +#define DMOV_FLUSH0(ch) DMOV_SD_AARM(0x080, ch) +#define DMOV_FLUSH1(ch) DMOV_SD_AARM(0x0C0, ch) +#define DMOV_FLUSH2(ch) DMOV_SD_AARM(0x100, ch) +#define DMOV_FLUSH3(ch) DMOV_SD_AARM(0x140, ch) +#define DMOV_FLUSH4(ch) DMOV_SD_AARM(0x180, ch) +#define DMOV_FLUSH5(ch) DMOV_SD_AARM(0x1C0, ch) + +#define DMOV_STATUS(ch) DMOV_SD_AARM(0x200, ch) +#define DMOV_ISR DMOV_SD_AARM(0x380, 0) + +#define DMOV_CONFIG(ch) DMOV_SD_AARM(0x300, ch) + enum { MSM_DMOV_PRINT_ERRORS = 1, MSM_DMOV_PRINT_IO = 2, @@ -51,6 +78,7 @@ void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful) { writel((graceful << 31), DMOV_FLUSH0(id)); } +EXPORT_SYMBOL_GPL(msm_dmov_stop_cmd); void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd) { @@ -89,6 +117,7 @@ void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd) } spin_unlock_irqrestore(&msm_dmov_lock, irq_flags); } +EXPORT_SYMBOL_GPL(msm_dmov_enqueue_cmd); struct msm_dmov_exec_cmdptr_cmd { struct msm_dmov_cmd dmov_cmd; @@ -223,8 +252,7 @@ static irqreturn_t msm_datamover_irq_handler(int irq, void *dev_id) PRINT_FLOW("msm_datamover_irq_handler id %d, status %x\n", id, ch_status); if ((ch_status & DMOV_STATUS_CMD_PTR_RDY) && !list_empty(&ready_commands[id])) { cmd = list_entry(ready_commands[id].next, typeof(*cmd), list); - list_del(&cmd->list); - list_add_tail(&cmd->list, &active_commands[id]); + list_move_tail(&cmd->list, &active_commands[id]); if (cmd->execute_func) cmd->execute_func(cmd); PRINT_FLOW("msm_datamover_irq_handler id %d, start command\n", id); @@ -259,6 +287,7 @@ static int __init msm_init_datamover(void) clk = clk_get(NULL, "adm_clk"); if (IS_ERR(clk)) return PTR_ERR(clk); + clk_prepare(clk); msm_dmov_clk = clk; ret = request_irq(INT_ADM_AARM, msm_datamover_irq_handler, 0, "msmdatamover", NULL); if (ret) @@ -266,6 +295,4 @@ static int __init msm_init_datamover(void) disable_irq(INT_ADM_AARM); return 0; } - -arch_initcall(msm_init_datamover); - +module_init(msm_init_datamover); |