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>

diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c
index db4b5fd4e9d26c447e13bb181cbae4cc28fce3e3..59dcf9df15375968ec814516159e742f855c798e 100644 (file)
--- 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 c2273287eda4ae85351af9514adf4c73b8cac361..2f7b2d3c2b184f9717307076d281c82619f628c8 100644 (file)
--- 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 9d0075475349b3d3dd884e672d8db89ffcade757..43266c44cb36a65ddb755a400328967543bdf2af 100644 (file)
--- 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);