diff options
| author | Leo Yan <leoy@marvell.com> | 2011-08-15 11:09:54 +0800 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2011-10-25 20:29:20 +0800 |
| commit | bca7ab316edd819edd0e3d59f9ccb26c6b2173f5 (patch) | |
| tree | cee77ea94d3305dcbd1ca0c96fbc70c9042209ee /arch/arm/mach-mmp | |
| parent | 101bf4c19672b519f6d50a7b11e1e03b25a929b6 (diff) | |
| download | linux-3.10-bca7ab316edd819edd0e3d59f9ccb26c6b2173f5.tar.gz linux-3.10-bca7ab316edd819edd0e3d59f9ccb26c6b2173f5.tar.bz2 linux-3.10-bca7ab316edd819edd0e3d59f9ccb26c6b2173f5.zip | |
ARM: mmp: register internal sram bank
MMP2 have the internal sram, this sram can be allocated
for video, power management and secure processor.
Now the sram usage is:
0xd1000000 ~ 0xd101ffff (128KB) : reserved for secure processor
0xd1020000 ~ 0xd1037fff (96KB) : for video and PM
Register the internal sram's second half 96KB buffer,
so that video and PM can dynamically alloc/free from it.
Signed-off-by: Leo Yan <leoy@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-mmp')
| -rw-r--r-- | arch/arm/mach-mmp/brownstone.c | 6 | ||||
| -rw-r--r-- | arch/arm/mach-mmp/include/mach/mmp2.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-mmp/mmp2.c | 2 |
3 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c index db4b5fd4e9d..59dcf9df153 100644 --- a/arch/arm/mach-mmp/brownstone.c +++ b/arch/arm/mach-mmp/brownstone.c @@ -191,6 +191,11 @@ static struct sram_platdata mmp2_asram_platdata = { .granularity = SRAM_GRANULARITY, }; +static struct sram_platdata mmp2_isram_platdata = { + .pool_name = "isram", + .granularity = SRAM_GRANULARITY, +}; + static void __init brownstone_init(void) { mfp_config(ARRAY_AND_SIZE(brownstone_pin_config)); @@ -202,6 +207,7 @@ static void __init brownstone_init(void) mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */ mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */ mmp2_add_asram(&mmp2_asram_platdata); + mmp2_add_isram(&mmp2_isram_platdata); /* enable 5v regulator */ platform_device_register(&brownstone_v_5vp_device); diff --git a/arch/arm/mach-mmp/include/mach/mmp2.h b/arch/arm/mach-mmp/include/mach/mmp2.h index c2273287eda..2f7b2d3c2b1 100644 --- a/arch/arm/mach-mmp/include/mach/mmp2.h +++ b/arch/arm/mach-mmp/include/mach/mmp2.h @@ -30,6 +30,7 @@ extern struct pxa_device_desc mmp2_device_sdh1; extern struct pxa_device_desc mmp2_device_sdh2; extern struct pxa_device_desc mmp2_device_sdh3; extern struct pxa_device_desc mmp2_device_asram; +extern struct pxa_device_desc mmp2_device_isram; static inline int mmp2_add_uart(int id) { @@ -92,5 +93,10 @@ static inline int mmp2_add_asram(struct sram_platdata *data) return pxa_register_device(&mmp2_device_asram, data, sizeof(*data)); } +static inline int mmp2_add_isram(struct sram_platdata *data) +{ + return pxa_register_device(&mmp2_device_isram, data, sizeof(*data)); +} + #endif /* __ASM_MACH_MMP2_H */ diff --git a/arch/arm/mach-mmp/mmp2.c b/arch/arm/mach-mmp/mmp2.c index 9d007547534..43266c44cb3 100644 --- a/arch/arm/mach-mmp/mmp2.c +++ b/arch/arm/mach-mmp/mmp2.c @@ -227,4 +227,6 @@ MMP2_DEVICE(sdh1, "sdhci-pxav3", 1, MMC2, 0xd4280800, 0x120); MMP2_DEVICE(sdh2, "sdhci-pxav3", 2, MMC3, 0xd4281000, 0x120); MMP2_DEVICE(sdh3, "sdhci-pxav3", 3, MMC4, 0xd4281800, 0x120); MMP2_DEVICE(asram, "asram", -1, NONE, 0xe0000000, 0x4000); +/* 0xd1000000 ~ 0xd101ffff is reserved for secure processor */ +MMP2_DEVICE(isram, "isram", -1, NONE, 0xd1020000, 0x18000); |