leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: sunxi: add support for automatic delay calibration

Browse Source 
A64 and H6 support automatic delay calibration and Linux driver uses it
instead of hardcoded delays. Add support for it to u-boot driver.

Fixes eMMC instability on Pinebook

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Cc: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Vasily Khoruzhick
2018-11-05 20:24:28 -08:00
committed by Jagan Teki
parent 4f9d34e633
commit 20940ef2a3
2 changed files with 25 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/include/asm/arch-sunxi/mmc.h
View File

@@ -46,7 +46,9 @@ struct sunxi_mmc {
u32 cbda; /* 0x94 */
u32 res2[26];
#if defined(CONFIG_SUNXI_GEN_SUN6I) || defined(CONFIG_MACH_SUN50I_H6)
u32 res3[64];
u32 res3[17];
u32 samp_dl;
u32 res4[46];
#endif
u32 fifo; /* 0x100 / 0x200 FIFO access address */
};
@@ -130,5 +132,7 @@ struct sunxi_mmc {
#define SUNXI_MMC_COMMON_CLK_GATE (1 << 16)
#define SUNXI_MMC_COMMON_RESET (1 << 18)
#define SUNXI_MMC_CAL_DL_SW_EN (0x1 << 7)
struct mmc *sunxi_mmc_init(int sdc_no);
#endif /* _SUNXI_MMC_H */