* Dasu, Karthik P <karthik-dp@xxxxxx> [080303 23:54]:
> Sram Driver support for 3430
I've pushed the 34xx SRAM init part of this.
Tony
> Signed-off-by: Karthik Dasu<karthik-dp@xxxxxx>
> Acked-by: Richard Woodruff <r-woodruff2@xxxxxx>
> Acked-by: Vikram Pandita <vikram.pandita@xxxxxx>
> ---
> arch/arm/plat-omap/sram.c | 105 +++++++++++++++++++++++++++++++++++----
> include/asm-arm/arch-omap/sram.h | 8 ++
> 2 files changed, 103 insertions(+), 10 deletions(-)
>
> Index: git-latest5/arch/arm/plat-omap/sram.c
> ===================================================================
> --- git-latest5.orig/arch/arm/plat-omap/sram.c 2008-02-29 21:54:22.276024670 +0530
> +++ git-latest5/arch/arm/plat-omap/sram.c 2008-02-29 21:55:31.614787643 +0530
> @@ -39,6 +39,10 @@
> #define OMAP2_SRAM_PUB_PA 0x4020f800
> #define OMAP2_SRAM_VA VMALLOC_END
> #define OMAP2_SRAM_PUB_VA (VMALLOC_END + 0x800)
> +#define OMAP3_SRAM_PA 0x40200000
> +#define OMAP3_SRAM_VA 0xd7000000
> +#define OMAP3_SRAM_PUB_PA 0x40208000
> +#define OMAP3_SRAM_PUB_VA 0xd7008000
>
> #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
> #define SRAM_BOOTLOADER_SZ 0x00
> @@ -46,9 +50,19 @@
> #define SRAM_BOOTLOADER_SZ 0x80
> #endif
>
> +#if defined(CONFIG_ARCH_OMAP34XX)
> +#define VA_REQINFOPERM0 IO_ADDRESS(0x68012848)
> +#define VA_READPERM0 IO_ADDRESS(0x68012850)
> +#define VA_WRITEPERM0 IO_ADDRESS(0x68012858)
> +#else
> #define VA_REQINFOPERM0 IO_ADDRESS(0x68005048)
> #define VA_READPERM0 IO_ADDRESS(0x68005050)
> #define VA_WRITEPERM0 IO_ADDRESS(0x68005058)
> +#endif
> +#define VA_ADDR_MATCH2 IO_ADDRESS(0x68012880)
> +#define VA_SMS_RG_ATT0 IO_ADDRESS(0x6C000048)
> +#define VA_CONTROL_STAT IO_ADDRESS(0x480022F0)
> +
> #define GP_DEVICE 0x300
>
> #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
> @@ -102,6 +116,13 @@
> __raw_writel(0xCFDE, VA_READPERM0); /* all i-read */
> __raw_writel(0xCFDE, VA_WRITEPERM0); /* all i-write */
> }
> + if (cpu_is_omap34xx()) {
> + __raw_writel(0xFFFF, VA_REQINFOPERM0); /* all q-vects */
> + __raw_writel(0xFFFF, VA_READPERM0); /* all i-read */
> + __raw_writel(0xFFFF, VA_WRITEPERM0); /* all i-write */
> + __raw_writel(0x0, VA_ADDR_MATCH2);
> + __raw_writel(0xFFFFFFFF, VA_SMS_RG_ATT0);
> + }
> return 0;
> } else
> return 1; /* assume locked with no PPA or security driver */
> @@ -119,16 +140,28 @@
>
> if (cpu_class_is_omap2()) {
> if (is_sram_locked()) {
> - omap_sram_base = OMAP2_SRAM_PUB_VA;
> - omap_sram_start = OMAP2_SRAM_PUB_PA;
> - omap_sram_size = 0x800; /* 2K */
> + if (cpu_is_omap34xx()) {
> + omap_sram_base = OMAP3_SRAM_PUB_VA;
> + omap_sram_start = OMAP3_SRAM_PUB_PA;
> + omap_sram_size = 0x8000; /* 32K */
> + } else {
> + omap_sram_base = OMAP2_SRAM_PUB_VA;
> + omap_sram_start = OMAP2_SRAM_PUB_PA;
> + omap_sram_size = 0x800; /* 2K */
> + }
> } else {
> - omap_sram_base = OMAP2_SRAM_VA;
> - omap_sram_start = OMAP2_SRAM_PA;
> - if (cpu_is_omap242x())
> - omap_sram_size = 0xa0000; /* 640K */
> - else if (cpu_is_omap243x() || cpu_is_omap34xx())
> + if (cpu_is_omap34xx()) {
> + omap_sram_base = OMAP3_SRAM_VA;
> + omap_sram_start = OMAP3_SRAM_PA;
> omap_sram_size = 0x10000; /* 64K */
> + } else {
> + omap_sram_base = OMAP2_SRAM_VA;
> + omap_sram_start = OMAP2_SRAM_PA;
> + if (cpu_is_omap242x())
> + omap_sram_size = 0xa0000; /* 640K */
> + else if (cpu_is_omap243x())
> + omap_sram_size = 0x10000; /* 64K */
> + }
> }
> } else {
> omap_sram_base = OMAP1_SRAM_VA;
> @@ -174,7 +207,7 @@
> if (omap_sram_size == 0)
> return;
>
> - if (cpu_class_is_omap2()) {
> + if (cpu_is_omap24xx()) {
> omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
>
> base = OMAP2_SRAM_PA;
> @@ -182,6 +215,13 @@
> omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
> }
>
> + if (cpu_is_omap34xx()) {
> + omap_sram_io_desc[0].virtual = OMAP3_SRAM_VA;
> + base = OMAP3_SRAM_PA;
> + base = ROUND_DOWN(base, PAGE_SIZE);
> + omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
> + }
> +
> omap_sram_io_desc[0].length = 1024 * 1024; /* Use section desc */
> iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
>
> @@ -336,6 +376,9 @@
> return _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type);
> }
>
> +#endif
> +
> +#if !defined(CONFIG_OMAP3_PM)
> static u32 (*_omap2_set_prcm)(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
>
> u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass)
> @@ -346,8 +389,38 @@
> return _omap2_set_prcm(dpll_ctrl_val, sdrc_rfr_val, bypass);
> }
>
> +#endif
> +
> +#if defined(CONFIG_OMAP3_PM)
> +static u32 (*_omap3_configure_core_dpll)(u32 m, u32 n, u32 freqsel, u32 m2);
> +
> +u32 omap3_configure_core_dpll(u32 m, u32 n, u32 freqsel, u32 m2)
> +{
> + if (!_omap3_configure_core_dpll)
> + omap_sram_error();
> + return _omap3_configure_core_dpll(m, n, freqsel, m2);
> +}
> +
> +static u32 (*_omap3_sram_reprogram_gpmc)(u32 perf_level);
> +
> +u32 omap3_sram_reprogram_gpmc(u32 perf_level)
> +{
> + if (!_omap3_sram_reprogram_gpmc)
> + omap_sram_error();
> +
> + return _omap3_sram_reprogram_gpmc(perf_level);
> +}
> +#endif
> +
> +#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
> int __init omap2_sram_init(void)
> {
> +#if defined(CONFIG_OMAP3_PM)
> + _omap3_configure_core_dpll = omap_sram_push(sram_configure_core_dpll,
> + sram_configure_core_dpll_sz);
> + _omap3_sram_reprogram_gpmc = omap_sram_push(sram_reprogram_gpmc,
> + sram_reprogram_gpmc_sz);
> +#else
> _omap2_sram_ddr_init = omap_sram_push(sram_ddr_init, sram_ddr_init_sz);
>
> /* Patch in the correct register addresses for multiboot */
> @@ -403,7 +476,7 @@
> omap_sram_patch_va(sram_set_prcm, &omap2_ssp_dlla_ctrl,
> _omap2_set_prcm,
> OMAP_SDRC_REGADDR(SDRC_DLLA_CTRL));
> -
> +#endif
> return 0;
> }
> #else
> @@ -422,3 +495,15 @@
>
> return 0;
> }
> +
> +#if defined(CONFIG_OMAP3_PM)
> +void restore_sram_functions(void)
> +{
> + omap_sram_ceil = omap_sram_base + omap_sram_size;
> + _omap3_configure_core_dpll =
> + omap_sram_push(sram_configure_core_dpll,
> + sram_configure_core_dpll_sz);
> + _omap3_sram_reprogram_gpmc = omap_sram_push(sram_reprogram_gpmc,
> + sram_reprogram_gpmc_sz);
> +}
> +#endif
> Index: git-latest5/include/asm-arm/arch-omap/sram.h
> ===================================================================
> --- git-latest5.orig/include/asm-arm/arch-omap/sram.h 2008-02-29 21:54:22.276024670 +0530
> +++ git-latest5/include/asm-arm/arch-omap/sram.h 2008-02-29 21:55:31.615787611 +0530
> @@ -37,4 +37,12 @@
> extern void sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type);
> extern unsigned long sram_reprogram_sdrc_sz;
>
> +#if defined(CONFIG_ARCH_OMAP34XX)
> +extern u32 sram_reprogram_gpmc(u32 perf_level);
> +extern unsigned long sram_reprogram_gpmc_sz;
> +
> +extern u32 sram_configure_core_dpll(u32 m, u32 n, u32 freqsel, u32 m2);
> +extern unsigned long sram_configure_core_dpll_sz;
> +#endif
> +
> #endif
> --
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