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authorTony Lindgren <tony@atomide.com>2012-10-29 09:35:35 -0700
committerTony Lindgren <tony@atomide.com>2012-10-31 10:14:14 -0700
commitbb77209432873214a796a70a4539e4ebdf3feb54 (patch)
tree553788c2f89f80a6ad826ec832f0da4617043d20 /arch/arm/plat-omap/sram.c
parentf205cfaf6c1287aca040c51c1789b46ed63a4d78 (diff)
ARM: OMAP: Move omap2+ specific parts of sram.c to mach-omap2
Let's make the omap2+ specific parts private to mach-omap2. This leaves just a minimal shared code into plat-omap like it should be. Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/sram.c')
-rw-r--r--arch/arm/plat-omap/sram.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 6fd32162964..743fc2836f7 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -26,159 +26,14 @@
#include <asm/mach/map.h>
-#include "../mach-omap2/soc.h"
-#include "../mach-omap2/sram.h"
-
-/* XXX These "sideways" includes will disappear when sram.c becomes a driver */
-#include "../mach-omap2/iomap.h"
-#include "../mach-omap2/prm2xxx_3xxx.h"
-#include "../mach-omap2/sdrc.h"
-
-#define OMAP2_SRAM_PUB_PA (OMAP2_SRAM_PA + 0xf800)
-#define OMAP3_SRAM_PUB_PA (OMAP3_SRAM_PA + 0x8000)
-#ifdef CONFIG_OMAP4_ERRATA_I688
-#define OMAP4_SRAM_PUB_PA OMAP4_SRAM_PA
-#else
-#define OMAP4_SRAM_PUB_PA (OMAP4_SRAM_PA + 0x4000)
-#endif
-#define OMAP5_SRAM_PA 0x40300000
-
-#if defined(CONFIG_ARCH_OMAP2PLUS)
-#define SRAM_BOOTLOADER_SZ 0x00
-#else
-#define SRAM_BOOTLOADER_SZ 0x80
-#endif
-
-#define OMAP24XX_VA_REQINFOPERM0 OMAP2_L3_IO_ADDRESS(0x68005048)
-#define OMAP24XX_VA_READPERM0 OMAP2_L3_IO_ADDRESS(0x68005050)
-#define OMAP24XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68005058)
-
-#define OMAP34XX_VA_REQINFOPERM0 OMAP2_L3_IO_ADDRESS(0x68012848)
-#define OMAP34XX_VA_READPERM0 OMAP2_L3_IO_ADDRESS(0x68012850)
-#define OMAP34XX_VA_WRITEPERM0 OMAP2_L3_IO_ADDRESS(0x68012858)
-#define OMAP34XX_VA_ADDR_MATCH2 OMAP2_L3_IO_ADDRESS(0x68012880)
-#define OMAP34XX_VA_SMS_RG_ATT0 OMAP2_L3_IO_ADDRESS(0x6C000048)
-
-#define GP_DEVICE 0x300
-
#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
-static unsigned long omap_sram_start;
static void __iomem *omap_sram_base;
static unsigned long omap_sram_skip;
static unsigned long omap_sram_size;
static void __iomem *omap_sram_ceil;
/*
- * Depending on the target RAMFS firewall setup, the public usable amount of
- * SRAM varies. The default accessible size for all device types is 2k. A GP
- * device allows ARM11 but not other initiators for full size. This
- * functionality seems ok until some nice security API happens.
- */
-static int is_sram_locked(void)
-{
- if (OMAP2_DEVICE_TYPE_GP == omap_type()) {
- /* RAMFW: R/W access to all initiators for all qualifier sets */
- if (cpu_is_omap242x()) {
- __raw_writel(0xFF, OMAP24XX_VA_REQINFOPERM0); /* all q-vects */
- __raw_writel(0xCFDE, OMAP24XX_VA_READPERM0); /* all i-read */
- __raw_writel(0xCFDE, OMAP24XX_VA_WRITEPERM0); /* all i-write */
- }
- if (cpu_is_omap34xx()) {
- __raw_writel(0xFFFF, OMAP34XX_VA_REQINFOPERM0); /* all q-vects */
- __raw_writel(0xFFFF, OMAP34XX_VA_READPERM0); /* all i-read */
- __raw_writel(0xFFFF, OMAP34XX_VA_WRITEPERM0); /* all i-write */
- __raw_writel(0x0, OMAP34XX_VA_ADDR_MATCH2);
- __raw_writel(0xFFFFFFFF, OMAP34XX_VA_SMS_RG_ATT0);
- }
- return 0;
- } else
- return 1; /* assume locked with no PPA or security driver */
-}
-
-/*
- * The amount of SRAM depends on the core type.
- * Note that we cannot try to test for SRAM here because writes
- * to secure SRAM will hang the system. Also the SRAM is not
- * yet mapped at this point.
- */
-static void __init omap_detect_sram(void)
-{
- omap_sram_skip = SRAM_BOOTLOADER_SZ;
- if (cpu_class_is_omap2()) {
- if (is_sram_locked()) {
- if (cpu_is_omap34xx()) {
- omap_sram_start = OMAP3_SRAM_PUB_PA;
- if ((omap_type() == OMAP2_DEVICE_TYPE_EMU) ||
- (omap_type() == OMAP2_DEVICE_TYPE_SEC)) {
- omap_sram_size = 0x7000; /* 28K */
- omap_sram_skip += SZ_16K;
- } else {
- omap_sram_size = 0x8000; /* 32K */
- }
- } else if (cpu_is_omap44xx()) {
- omap_sram_start = OMAP4_SRAM_PUB_PA;
- omap_sram_size = 0xa000; /* 40K */
- } else if (soc_is_omap54xx()) {
- omap_sram_start = OMAP5_SRAM_PA;
- omap_sram_size = SZ_128K; /* 128KB */
- } else {
- omap_sram_start = OMAP2_SRAM_PUB_PA;
- omap_sram_size = 0x800; /* 2K */
- }
- } else {
- if (soc_is_am33xx()) {
- omap_sram_start = AM33XX_SRAM_PA;
- omap_sram_size = 0x10000; /* 64K */
- } else if (cpu_is_omap34xx()) {
- omap_sram_start = OMAP3_SRAM_PA;
- omap_sram_size = 0x10000; /* 64K */
- } else if (cpu_is_omap44xx()) {
- omap_sram_start = OMAP4_SRAM_PA;
- omap_sram_size = 0xe000; /* 56K */
- } else if (soc_is_omap54xx()) {
- omap_sram_start = OMAP5_SRAM_PA;
- omap_sram_size = SZ_128K; /* 128KB */
- } else {
- 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 */
- }
- }
- }
-}
-
-/*
- * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early.
- */
-static void __init omap_fix_and_map_sram(void)
-{
- int cached = 1;
-
-#ifdef CONFIG_OMAP4_ERRATA_I688
- if (cpu_is_omap44xx()) {
- omap_sram_start += PAGE_SIZE;
- omap_sram_size -= SZ_16K;
- }
-#endif
- if (cpu_is_omap34xx()) {
- /*
- * SRAM must be marked as non-cached on OMAP3 since the
- * CORE DPLL M2 divider change code (in SRAM) runs with the
- * SDRAM controller disabled, and if it is marked cached,
- * the ARM may attempt to write cache lines back to SDRAM
- * which will cause the system to hang.
- */
- cached = 0;
- }
-
- omap_map_sram(omap_sram_start, omap_sram_size,
- omap_sram_skip, cached);
-}
-
-/*
* Memory allocator for SRAM: calculates the new ceiling address
* for pushing a function using the fncpy API.
*
@@ -239,146 +94,3 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
memset_io(omap_sram_base + omap_sram_skip, 0,
omap_sram_size - omap_sram_skip);
}
-
-#if defined(CONFIG_ARCH_OMAP2)
-
-static void (*_omap2_sram_ddr_init)(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
- u32 base_cs, u32 force_unlock);
-
-void omap2_sram_ddr_init(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
- u32 base_cs, u32 force_unlock)
-{
- BUG_ON(!_omap2_sram_ddr_init);
- _omap2_sram_ddr_init(slow_dll_ctrl, fast_dll_ctrl,
- base_cs, force_unlock);
-}
-
-static void (*_omap2_sram_reprogram_sdrc)(u32 perf_level, u32 dll_val,
- u32 mem_type);
-
-void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type)
-{
- BUG_ON(!_omap2_sram_reprogram_sdrc);
- _omap2_sram_reprogram_sdrc(perf_level, dll_val, mem_type);
-}
-
-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)
-{
- BUG_ON(!_omap2_set_prcm);
- return _omap2_set_prcm(dpll_ctrl_val, sdrc_rfr_val, bypass);
-}
-#endif
-
-#ifdef CONFIG_SOC_OMAP2420
-static int __init omap242x_sram_init(void)
-{
- _omap2_sram_ddr_init = omap_sram_push(omap242x_sram_ddr_init,
- omap242x_sram_ddr_init_sz);
-
- _omap2_sram_reprogram_sdrc = omap_sram_push(omap242x_sram_reprogram_sdrc,
- omap242x_sram_reprogram_sdrc_sz);
-
- _omap2_set_prcm = omap_sram_push(omap242x_sram_set_prcm,
- omap242x_sram_set_prcm_sz);
-
- return 0;
-}
-#else
-static inline int omap242x_sram_init(void)
-{
- return 0;
-}
-#endif
-
-#ifdef CONFIG_SOC_OMAP2430
-static int __init omap243x_sram_init(void)
-{
- _omap2_sram_ddr_init = omap_sram_push(omap243x_sram_ddr_init,
- omap243x_sram_ddr_init_sz);
-
- _omap2_sram_reprogram_sdrc = omap_sram_push(omap243x_sram_reprogram_sdrc,
- omap243x_sram_reprogram_sdrc_sz);
-
- _omap2_set_prcm = omap_sram_push(omap243x_sram_set_prcm,
- omap243x_sram_set_prcm_sz);
-
- return 0;
-}
-#else
-static inline int omap243x_sram_init(void)
-{
- return 0;
-}
-#endif
-
-#ifdef CONFIG_ARCH_OMAP3
-
-static u32 (*_omap3_sram_configure_core_dpll)(
- u32 m2, u32 unlock_dll, u32 f, u32 inc,
- u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
- u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
- u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
- u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
-
-u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc,
- u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
- u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
- u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
- u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1)
-{
- BUG_ON(!_omap3_sram_configure_core_dpll);
- return _omap3_sram_configure_core_dpll(
- m2, unlock_dll, f, inc,
- sdrc_rfr_ctrl_0, sdrc_actim_ctrl_a_0,
- sdrc_actim_ctrl_b_0, sdrc_mr_0,
- sdrc_rfr_ctrl_1, sdrc_actim_ctrl_a_1,
- sdrc_actim_ctrl_b_1, sdrc_mr_1);
-}
-
-void omap3_sram_restore_context(void)
-{
- omap_sram_reset();
-
- _omap3_sram_configure_core_dpll =
- omap_sram_push(omap3_sram_configure_core_dpll,
- omap3_sram_configure_core_dpll_sz);
- omap_push_sram_idle();
-}
-
-static inline int omap34xx_sram_init(void)
-{
- omap3_sram_restore_context();
- return 0;
-}
-#else
-static inline int omap34xx_sram_init(void)
-{
- return 0;
-}
-#endif /* CONFIG_ARCH_OMAP3 */
-
-static inline int am33xx_sram_init(void)
-{
- return 0;
-}
-
-#ifdef CONFIG_ARCH_OMAP2PLUS
-int __init omap_sram_init(void)
-{
- omap_detect_sram();
- omap_fix_and_map_sram();
-
- if (cpu_is_omap242x())
- omap242x_sram_init();
- else if (cpu_is_omap2430())
- omap243x_sram_init();
- else if (soc_is_am33xx())
- am33xx_sram_init();
- else if (cpu_is_omap34xx())
- omap34xx_sram_init();
-
- return 0;
-}
-#endif