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davinci: da850/omap-l138: create static map for SRAM

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Create static map for internal SRAM and populate SRAM base
and size in soc_info structure to allow SRAM allocation
functions from arch/arm/mach-davinci/sram.c to work.

On DA850 SRAM is used for suspend-to-RAM implementation
in places where DDR2 cannot be accessed as its clocks are
stopped.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Sekhar Nori
2009-11-16 17:21:39 +05:30
committed by Kevin Hilman
parent 7aad472bb5
commit 60cd02e1f4
2 changed files with 9 additions and 0 deletions
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8
arch/arm/mach-davinci/da850.c
View File

@@ -771,6 +771,12 @@ static struct map_desc da850_io_desc[] = {
.length = DA8XX_CP_INTC_SIZE, .length = DA8XX_CP_INTC_SIZE,
.type = MT_DEVICE .type = MT_DEVICE
}, },
{
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
.length = SZ_8K,
.type = MT_DEVICE
},
}; };
static void __iomem *da850_psc_bases[] = { static void __iomem *da850_psc_bases[] = {
@@ -1044,6 +1050,8 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
.gpio_irq = IRQ_DA8XX_GPIO0, .gpio_irq = IRQ_DA8XX_GPIO0,
.serial_dev = &da8xx_serial_device, .serial_dev = &da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata, .emac_pdata = &da8xx_emac_pdata,
.sram_dma = DA8XX_ARM_RAM_BASE,
.sram_len = SZ_8K,
}; };
void __init da850_init(void) void __init da850_init(void)

1
arch/arm/mach-davinci/include/mach/da8xx.h
View File

@@ -57,6 +57,7 @@ extern void __iomem *da8xx_syscfg1_base;
#define DA8XX_AEMIF_CS3_BASE 0x62000000 #define DA8XX_AEMIF_CS3_BASE 0x62000000
#define DA8XX_AEMIF_CTL_BASE 0x68000000 #define DA8XX_AEMIF_CTL_BASE 0x68000000
#define DA8XX_DDR2_CTL_BASE 0xb0000000 #define DA8XX_DDR2_CTL_BASE 0xb0000000
#define DA8XX_ARM_RAM_BASE 0xffff0000
#define PINMUX0 0x00 #define PINMUX0 0x00
#define PINMUX1 0x04 #define PINMUX1 0x04