From c9e0020d49587b1b214d65256a88a2978329aefe Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Wed, 7 Jan 2009 23:14:39 +0800 Subject: Blackfin arch: push bf561 PERIPHERAL_MAP oddity into bf561-specific code Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- arch/blackfin/kernel/bfin_dma_5xx.c | 16 +++++----------- arch/blackfin/mach-bf561/include/mach/dma.h | 3 +++ 2 files changed, 8 insertions(+), 11 deletions(-) (limited to 'arch') diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 1882fd82879..36f78c1648b 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -411,15 +411,14 @@ unsigned long get_dma_curr_addr(unsigned int channel) EXPORT_SYMBOL(get_dma_curr_addr); #ifdef CONFIG_PM +# ifndef MAX_DMA_SUSPEND_CHANNELS +# define MAX_DMA_SUSPEND_CHANNELS MAX_DMA_CHANNELS +# endif int blackfin_dma_suspend(void) { int i; -#ifdef CONFIG_BF561 /* IMDMA channels doesn't have a PERIPHERAL_MAP */ - for (i = 0; i <= CH_MEM_STREAM3_SRC; i++) { -#else - for (i = 0; i < MAX_DMA_CHANNELS; i++) { -#endif + for (i = 0; i < MAX_DMA_SUSPEND_CHANNELS; ++i) { if (dma_ch[i].chan_status == DMA_CHANNEL_ENABLED) { printk(KERN_ERR "DMA Channel %d failed to suspend\n", i); return -EBUSY; @@ -434,12 +433,7 @@ int blackfin_dma_suspend(void) void blackfin_dma_resume(void) { int i; - -#ifdef CONFIG_BF561 /* IMDMA channels doesn't have a PERIPHERAL_MAP */ - for (i = 0; i <= CH_MEM_STREAM3_SRC; i++) -#else - for (i = 0; i < MAX_DMA_CHANNELS; i++) -#endif + for (i = 0; i < MAX_DMA_SUSPEND_CHANNELS; ++i) dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map; } #endif diff --git a/arch/blackfin/mach-bf561/include/mach/dma.h b/arch/blackfin/mach-bf561/include/mach/dma.h index 2597a09a012..13647c71f1c 100644 --- a/arch/blackfin/mach-bf561/include/mach/dma.h +++ b/arch/blackfin/mach-bf561/include/mach/dma.h @@ -10,6 +10,9 @@ #define MAX_DMA_CHANNELS 36 +/* [#4267] IMDMA channels have no PERIPHERAL_MAP MMR */ +#define MAX_DMA_SUSPEND_CHANNELS 32 + #define CH_PPI0 0 #define CH_PPI (CH_PPI0) #define CH_PPI1 1 -- cgit v1.2.3