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| author | Linus Walleij <linus.walleij@stericsson.com> | 2010-06-23 03:06:42 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-06-23 03:06:42 +0200 |
| commit | f41855929c9fdc3b4f2863ada9df3e0cf4231b5b (patch) | |
| tree | 4a31c0bd50af7c13664352e929edcdd2bd5bbf26 /arch | |
| parent | DMAENGINE: ste_dma40: support disabling physical channels (diff) | |
| download | linux-f41855929c9fdc3b4f2863ada9df3e0cf4231b5b.tar.xz linux-f41855929c9fdc3b4f2863ada9df3e0cf4231b5b.zip | |
DMAENGINE: ste_dma40: support older silicon
This makes sure the DMA40 driver will also work on the oldest
silicon revisions that have the on-chip memory on another location
in the DB8500 and also requires explicit suspend before starting
or resuming a logical channel.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
[added parenthesis to the definition of U8500_DMA_LCPA_BASE_ED]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-ux500/devices-db8500.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/include/mach/db8500-regs.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c index e2b7c31ef372..c62cdbee3bd9 100644 --- a/arch/arm/mach-ux500/devices-db8500.c +++ b/arch/arm/mach-ux500/devices-db8500.c @@ -213,4 +213,6 @@ void dma40_u8500ed_fixup(void) dma40_plat_data.memcpy_len = 0; dma40_resources[0].start = U8500_DMA_BASE_ED; dma40_resources[0].end = U8500_DMA_BASE_ED + SZ_4K - 1; + dma40_resources[1].start = U8500_DMA_LCPA_BASE_ED; + dma40_resources[1].end = U8500_DMA_LCPA_BASE_ED + 2 * SZ_1K - 1; } diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h index 897fa35078ef..f000218210c9 100644 --- a/arch/arm/mach-ux500/include/mach/db8500-regs.h +++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h @@ -17,6 +17,7 @@ #define U8500_ESRAM_BANK4 (U8500_ESRAM_BANK3 + U8500_ESRAM_BANK_SIZE) /* Use bank 4 for DMA LCPA */ #define U8500_DMA_LCPA_BASE U8500_ESRAM_BANK4 +#define U8500_DMA_LCPA_BASE_ED (U8500_ESRAM_BANK4 + 0x4000) #define U8500_PER3_BASE 0x80000000 #define U8500_STM_BASE 0x80100000 |