RE: [PATCH 1/1] davinci: changed SRAM allocator to shared ram.

From: Nori, Sekhar
Date: Wed Feb 23 2011 - 10:30:51 EST


Hi Subhasish,

On Fri, Feb 11, 2011 at 19:51:28, Subhasish Ghosh wrote:
> This patch modifies the sram allocator to allocate memory
> from the DA8XX shared RAM.

It will be nice to know if you tried suspend-to-RAM
after this change and found it to be working.

Thanks,
Sekhar

>
> Signed-off-by: Subhasish Ghosh <subhasish@xxxxxxxxxxxxxxxxxxxx>
> ---
> arch/arm/mach-davinci/da850.c | 6 +++---
> arch/arm/mach-davinci/include/mach/da8xx.h | 1 +
> 2 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
> index 3443d97..8a4de97 100644
> --- a/arch/arm/mach-davinci/da850.c
> +++ b/arch/arm/mach-davinci/da850.c
> @@ -711,7 +711,7 @@ static struct map_desc da850_io_desc[] = {
> },
> {
> .virtual = SRAM_VIRT,
> - .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
> + .pfn = __phys_to_pfn(DA8XX_SHARED_RAM_BASE),
> .length = SZ_8K,
> .type = MT_DEVICE
> },
> @@ -1083,8 +1083,8 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
> .gpio_irq = IRQ_DA8XX_GPIO0,
> .serial_dev = &da8xx_serial_device,
> .emac_pdata = &da8xx_emac_pdata,
> - .sram_dma = DA8XX_ARM_RAM_BASE,
> - .sram_len = SZ_8K,
> + .sram_dma = DA8XX_SHARED_RAM_BASE,
> + .sram_len = SZ_128K,
> .reset_device = &da8xx_wdt_device,
> };
>
> diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
> index cfcb223..c3c3339 100644
> --- a/arch/arm/mach-davinci/include/mach/da8xx.h
> +++ b/arch/arm/mach-davinci/include/mach/da8xx.h
> @@ -70,6 +70,7 @@ extern unsigned int da850_max_speed;
> #define DA8XX_AEMIF_CTL_BASE 0x68000000
> #define DA8XX_DDR2_CTL_BASE 0xb0000000
> #define DA8XX_ARM_RAM_BASE 0xffff0000
> +#define DA8XX_SHARED_RAM_BASE 0x80000000
>
> void __init da830_init(void);
> void __init da850_init(void);
> --
> 1.7.2.3
>
>

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