diff options
| author | Tom Warren | 2019-05-29 09:30:01 -0700 |
|---|---|---|
| committer | Tom Warren | 2020-04-02 14:30:01 -0700 |
| commit | 5e965e814067e7539943bbaeb47d7bf9738a701b (patch) | |
| tree | ffea3021ca7f4c6664b8cbbb9f48c2f92143c01b /arch/arm | |
| parent | 224595abaae918a64fba2625553e51a482ead084 (diff) | |
mmc: t210: Add autocal and tap/trim updates for SDMMC1/3
As per the T210 TRM, when running at 3.3v, the SDMMC1 tap/trim and
autocal values need to be set to condition the signals correctly before
talking to the SD-card. This is the same as what's being done in CBoot,
but it gets reset when the SDMMC1 HW is soft-reset during SD driver
init, so needs to be repeated here. Also set autocal and tap/trim for
SDMMC3, although no T210 boards use it for SD-card at this time.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/arch-tegra/tegra_mmc.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/arm/include/asm/arch-tegra/tegra_mmc.h b/arch/arm/include/asm/arch-tegra/tegra_mmc.h index a2b6f63ff0e..a8bfa466c02 100644 --- a/arch/arm/include/asm/arch-tegra/tegra_mmc.h +++ b/arch/arm/include/asm/arch-tegra/tegra_mmc.h @@ -2,7 +2,7 @@ /* * (C) Copyright 2009 SAMSUNG Electronics * Minkyu Kang <mk7.kang@samsung.com> - * Portions Copyright (C) 2011-2012 NVIDIA Corporation + * Portions Copyright (C) 2011-2012,2019 NVIDIA Corporation */ #ifndef __TEGRA_MMC_H_ @@ -52,7 +52,7 @@ struct tegra_mmc { unsigned char admaerr; /* offset 54h */ unsigned char res4[3]; /* RESERVED, offset 55h-57h */ unsigned long admaaddr; /* offset 58h-5Fh */ - unsigned char res5[0xa0]; /* RESERVED, offset 60h-FBh */ + unsigned char res5[0x9c]; /* RESERVED, offset 60h-FBh */ unsigned short slotintstatus; /* offset FCh */ unsigned short hcver; /* HOST Version */ unsigned int venclkctl; /* _VENDOR_CLOCK_CNTRL_0, 100h */ @@ -127,11 +127,23 @@ struct tegra_mmc { #define TEGRA_MMC_NORINTSIGEN_XFER_COMPLETE (1 << 1) -/* SDMMC1/3 settings from section 24.6 of T30 TRM */ +/* SDMMC1/3 settings from SDMMCx Initialization Sequence of TRM */ #define MEMCOMP_PADCTRL_VREF 7 -#define AUTO_CAL_ENABLED (1 << 29) +#define AUTO_CAL_ENABLE (1 << 29) +#if defined(CONFIG_TEGRA210) +#define AUTO_CAL_ACTIVE (1 << 31) +#define AUTO_CAL_START (1 << 31) +#define AUTO_CAL_PD_OFFSET (0x7D << 8) +#define AUTO_CAL_PU_OFFSET (0 << 0) +#define IO_TRIM_BYPASS_MASK (1 << 2) +#define TRIM_VAL_SHIFT 24 +#define TRIM_VAL_MASK (0x1F << TRIM_VAL_SHIFT) +#define TAP_VAL_SHIFT 16 +#define TAP_VAL_MASK (0xFF << TAP_VAL_SHIFT) +#else #define AUTO_CAL_PD_OFFSET (0x70 << 8) #define AUTO_CAL_PU_OFFSET (0x62 << 0) +#endif #endif /* __ASSEMBLY__ */ #endif /* __TEGRA_MMC_H_ */ |