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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2013-02-12 01:33:45 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-03-11 11:06:11 -0400 |
| commit | d4d986ee27fe6a78e50d4789d5b08b87a5e64892 (patch) | |
| tree | 0bc6adb8e8d303a5512194a6f5cb4a426e678079 /arch/arm/include/asm/arch-omap5 | |
| parent | 9100edecf8379c357037c34044757202f85480b2 (diff) | |
| download | u-boot-imx-d4d986ee27fe6a78e50d4789d5b08b87a5e64892.zip u-boot-imx-d4d986ee27fe6a78e50d4789d5b08b87a5e64892.tar.gz u-boot-imx-d4d986ee27fe6a78e50d4789d5b08b87a5e64892.tar.bz2 | |
ARM: OMAP5: srcomp: enable slew rate compensation cells after powerup
After power-up SRCOMP cells are by-passed by default in OMAP5.
Software has to enable these SRCOMP sells.
For ES2: All 5 SRCOMP cells needs to be enabled.
For ES1: Only 4 SRCOMP cells in core power domain are enabled.
The 1 in wkup domain is not enabled because smart i/os
of wkup domain work with default compensation code.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>
Cc: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/include/asm/arch-omap5')
| -rw-r--r-- | arch/arm/include/asm/arch-omap5/clocks.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap5/omap.h | 19 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-omap5/sys_proto.h | 1 |
3 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-omap5/clocks.h b/arch/arm/include/asm/arch-omap5/clocks.h index 6ee40be..cfde374 100644 --- a/arch/arm/include/asm/arch-omap5/clocks.h +++ b/arch/arm/include/asm/arch-omap5/clocks.h @@ -186,6 +186,10 @@ #define OPTFCLKEN_SCRM_CORE_SHIFT 8 #define OPTFCLKEN_SCRM_CORE_MASK (1 << 8) +/* CM_COREAON_IO_SRCOMP_CLKCTRL */ +#define OPTFCLKEN_SRCOMP_FCLK_SHIFT 8 +#define OPTFCLKEN_SRCOMP_FCLK_MASK (1 << 8) + /* Clock frequencies */ #define OMAP_SYS_CLK_FREQ_38_4_MHZ 38400000 #define OMAP_SYS_CLK_IND_38_4_MHZ 6 diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h index ba2775b..d29be93 100644 --- a/arch/arm/include/asm/arch-omap5/omap.h +++ b/arch/arm/include/asm/arch-omap5/omap.h @@ -229,7 +229,26 @@ struct s32ktimer { #define CH_FLAGS_CHFLASH (0x1 << 2) #define CH_FLAGS_CHMMCSD (0x1 << 3) +/* CONTROL_SRCOMP_XXX_SIDE */ +#define OVERRIDE_XS_SHIFT 30 +#define OVERRIDE_XS_MASK (1 << 30) +#define SRCODE_READ_XS_SHIFT 12 +#define SRCODE_READ_XS_MASK (0xff << 12) +#define PWRDWN_XS_SHIFT 11 +#define PWRDWN_XS_MASK (1 << 11) +#define DIVIDE_FACTOR_XS_SHIFT 4 +#define DIVIDE_FACTOR_XS_MASK (0x7f << 4) +#define MULTIPLY_FACTOR_XS_SHIFT 1 +#define MULTIPLY_FACTOR_XS_MASK (0x7 << 1) +#define SRCODE_OVERRIDE_SEL_XS_SHIFT 0 +#define SRCODE_OVERRIDE_SEL_XS_MASK (1 << 0) + #ifndef __ASSEMBLY__ +struct srcomp_params { + s8 divide_factor; + s8 multiply_factor; +}; + struct omap_boot_parameters { char *boot_message; unsigned int mem_boot_descriptor; diff --git a/arch/arm/include/asm/arch-omap5/sys_proto.h b/arch/arm/include/asm/arch-omap5/sys_proto.h index 201ed6f..b8d841d 100644 --- a/arch/arm/include/asm/arch-omap5/sys_proto.h +++ b/arch/arm/include/asm/arch-omap5/sys_proto.h @@ -59,6 +59,7 @@ int omap_vc_bypass_send_value(u8 sa, u8 reg_addr, u8 reg_data); u32 warm_reset(void); void force_emif_self_refresh(void); void get_ioregs(const struct ctrl_ioregs **regs); +void srcomp_enable(void); /* * This is used to verify if the configuration header |