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mmc: omap_hsmmc: Add support to get pinctrl values and max frequency for different hw revisions

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AM572x SR1.1 requires different IODelay values to be used than that used
in AM572x SR2.0. These values are populated in device tree. Add
capability in omap_hsmmc driver to extract IOdelay values for different
silicon revision. The maximum frequency is also reduced when using a ES1.1.
To keep the ability to boot both revsions with the same dtb, those values
can be provided by the platform code.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Kishon Vijay Abraham I
2018-01-30 16:01:41 +01:00
committed by Jaehoon Chung
parent 33c1d77f4a
commit 2d28eeda33
3 changed files with 52 additions and 14 deletions
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7
arch/arm/include/asm/arch-omap5/sys_proto.h
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@ -35,6 +35,12 @@ struct pad_conf_entry {
u32 val;
};
struct mmc_platform_fixups {
const char *hw_rev;
u32 unsupported_caps;
u32 max_freq;
};
struct omap_sysinfo {
char *board_string;
};
@ -71,6 +77,7 @@ void force_emif_self_refresh(void);
void get_ioregs(const struct ctrl_ioregs **regs);
void srcomp_enable(void);
void setup_warmreset_time(void);
const struct mmc_platform_fixups *platform_fixups_mmc(uint32_t addr);
static inline u32 div_round_up(u32 num, u32 den)
{

1
arch/arm/include/asm/omap_mmc.h
View File

@ -70,6 +70,7 @@ struct omap_hsmmc_plat {
struct mmc mmc;
bool cd_inverted;
u32 controller_flags;
const char *hw_rev;
};
/*