diff options
| author | Aneesh V <aneesh@ti.com> | 2011-07-21 09:10:12 -0400 |
|---|---|---|
| committer | U-Boot <uboot@aari01-12.(none)> | 2011-08-03 12:49:19 +0200 |
| commit | 095aea293b70114dda0d958788a8acc15e3cd665 (patch) | |
| tree | 7b8aac0828ca5a801aac25bb0e2c7ac8c3626189 /arch/arm/include/asm/arch-omap4 | |
| parent | 2ae610f030c376323515321280352b3fe6278a0f (diff) | |
omap4: calculate EMIF register values
Calculate EMIF register values based on AC timing parameters
from the SDRAM datasheet and the DDR frequency rather than
using the hard-coded values.
For a new board the user doen't have to go through the tedious
process of calculating the register values. Instead, just
provide the AC timings from the device data sheet as input
and the driver will automatically calculate the register values.
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'arch/arm/include/asm/arch-omap4')
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/emif.h | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/omap4.h | 10 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/sys_proto.h | 1 |
3 files changed, 14 insertions, 6 deletions
diff --git a/arch/arm/include/asm/arch-omap4/emif.h b/arch/arm/include/asm/arch-omap4/emif.h index 09e9baa19..a16750840 100644 --- a/arch/arm/include/asm/arch-omap4/emif.h +++ b/arch/arm/include/asm/arch-omap4/emif.h @@ -1019,7 +1019,16 @@ struct emif_regs { #define emif_assert(c) ({ if (0) hang(); }) #endif +#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs); void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs); +#else +void emif_get_device_details(u32 emif_nr, + struct lpddr2_device_details *cs0_device_details, + struct lpddr2_device_details *cs1_device_details); +void emif_get_device_timings(u32 emif_nr, + const struct lpddr2_device_timings **cs0_device_timings, + const struct lpddr2_device_timings **cs1_device_timings); +#endif #endif diff --git a/arch/arm/include/asm/arch-omap4/omap4.h b/arch/arm/include/asm/arch-omap4/omap4.h index c9c86e1c7..a8dbedb45 100644 --- a/arch/arm/include/asm/arch-omap4/omap4.h +++ b/arch/arm/include/asm/arch-omap4/omap4.h @@ -84,12 +84,6 @@ /* GPMC */ #define OMAP44XX_GPMC_BASE 0x50000000 -/* DMM */ -#define OMAP44XX_DMM_BASE 0x4E000000 -#define DMM_LISA_MAP_BASE (OMAP44XX_DMM_BASE + 0x40) -#define DMM_LISA_MAP_SYS_SIZE_MASK (7 << 20) -#define DMM_LISA_MAP_SYS_SIZE_SHIFT 20 -#define DMM_LISA_MAP_SYS_ADDR_MASK (0xFF << 24) /* * Hardware Register Details */ @@ -137,6 +131,10 @@ struct s32ktimer { #define SRAM_SCRATCH_SPACE_ADDR NON_SECURE_SRAM_START /* SRAM scratch space entries */ #define OMAP4_SRAM_SCRATCH_OMAP4_REV SRAM_SCRATCH_SPACE_ADDR +#define OMAP4_SRAM_SCRATCH_EMIF_SIZE (SRAM_SCRATCH_SPACE_ADDR + 0x4) +#define OMAP4_SRAM_SCRATCH_EMIF_T_NUM (SRAM_SCRATCH_SPACE_ADDR + 0xC) +#define OMAP4_SRAM_SCRATCH_EMIF_T_DEN (SRAM_SCRATCH_SPACE_ADDR + 0x10) +#define OMAP4_SRAM_SCRATCH_SPACE_END (SRAM_SCRATCH_SPACE_ADDR + 0x14) /* Silicon revisions */ #define OMAP4430_SILICON_ID_INVALID 0xFFFFFFFF diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h index 7183a9063..1e62878ea 100644 --- a/arch/arm/include/asm/arch-omap4/sys_proto.h +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -49,6 +49,7 @@ void bypass_dpll(u32 *const base); void freq_update_core(void); u32 get_sys_clk_freq(void); u32 omap4_ddr_clk(void); +void cancel_out(u32 *num, u32 *den, u32 den_limit); void sdram_init(void); u32 omap4_sdram_size(void); |