Commit bca7ab31 authored by Leo Yan's avatar Leo Yan Committed by Eric Miao
Browse files

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: default avatarLeo Yan <leoy@marvell.com>
Acked-by: default avatarHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
parent 101bf4c1

arch/arm/mach-mmp/brownstone.c

+6 −0
Original line number Diff line number Diff line
@@ -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);

arch/arm/mach-mmp/include/mach/mmp2.h

+6 −0
Original line number Diff line number Diff line
@@ -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 */

arch/arm/mach-mmp/mmp2.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

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