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https://github.com/AsahiLinux/u-boot
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c78ae11e07
Cleanup this driver to use dt in U-boot and static platdata in SPL.
This requires the following steps:
1. Move all platdata assignment from probe() to ofdata_to_platdata().
This function is only called in U-boot.
2. Replicate all the platdata assignment being done in
ofdata_to_platdata() in the omapl138 board file. This data is used in
the SPL case where SPL_OF_CONTROL is not enabled.
3. Remove SPL_OF_CONTROL and related configs from omapl138_lcdk_defconfig
This cleanup effectively reverts 3ef94715cc ('mmc: davinci: fix mmc boot in SPL')
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
164 lines
4.2 KiB
C
164 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Davinci MMC Controller Defines - Based on Linux davinci_mmc.c
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*
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* Copyright (C) 2010 Texas Instruments Incorporated
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*/
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#ifndef _SDMMC_DEFS_H_
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#define _SDMMC_DEFS_H_
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#include <asm/arch/hardware.h>
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/* MMC Control Reg fields */
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#define MMCCTL_DATRST (1 << 0)
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#define MMCCTL_CMDRST (1 << 1)
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#define MMCCTL_WIDTH_4_BIT (1 << 2)
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#define MMCCTL_DATEG_DISABLED (0 << 6)
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#define MMCCTL_DATEG_RISING (1 << 6)
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#define MMCCTL_DATEG_FALLING (2 << 6)
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#define MMCCTL_DATEG_BOTH (3 << 6)
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#define MMCCTL_PERMDR_LE (0 << 9)
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#define MMCCTL_PERMDR_BE (1 << 9)
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#define MMCCTL_PERMDX_LE (0 << 10)
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#define MMCCTL_PERMDX_BE (1 << 10)
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/* MMC Clock Control Reg fields */
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#define MMCCLK_CLKEN (1 << 8)
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#define MMCCLK_CLKRT_MASK (0xFF << 0)
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/* MMC Status Reg0 fields */
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#define MMCST0_DATDNE (1 << 0)
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#define MMCST0_BSYDNE (1 << 1)
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#define MMCST0_RSPDNE (1 << 2)
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#define MMCST0_TOUTRD (1 << 3)
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#define MMCST0_TOUTRS (1 << 4)
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#define MMCST0_CRCWR (1 << 5)
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#define MMCST0_CRCRD (1 << 6)
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#define MMCST0_CRCRS (1 << 7)
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#define MMCST0_DXRDY (1 << 9)
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#define MMCST0_DRRDY (1 << 10)
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#define MMCST0_DATED (1 << 11)
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#define MMCST0_TRNDNE (1 << 12)
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#define MMCST0_ERR_MASK (0x00F8)
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/* MMC Status Reg1 fields */
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#define MMCST1_BUSY (1 << 0)
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#define MMCST1_CLKSTP (1 << 1)
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#define MMCST1_DXEMP (1 << 2)
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#define MMCST1_DRFUL (1 << 3)
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#define MMCST1_DAT3ST (1 << 4)
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#define MMCST1_FIFOEMP (1 << 5)
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#define MMCST1_FIFOFUL (1 << 6)
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/* MMC INT Mask Reg fields */
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#define MMCIM_EDATDNE (1 << 0)
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#define MMCIM_EBSYDNE (1 << 1)
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#define MMCIM_ERSPDNE (1 << 2)
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#define MMCIM_ETOUTRD (1 << 3)
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#define MMCIM_ETOUTRS (1 << 4)
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#define MMCIM_ECRCWR (1 << 5)
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#define MMCIM_ECRCRD (1 << 6)
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#define MMCIM_ECRCRS (1 << 7)
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#define MMCIM_EDXRDY (1 << 9)
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#define MMCIM_EDRRDY (1 << 10)
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#define MMCIM_EDATED (1 << 11)
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#define MMCIM_ETRNDNE (1 << 12)
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#define MMCIM_MASKALL (0xFFFFFFFF)
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/* MMC Resp Tout Reg fields */
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#define MMCTOR_TOR_MASK (0xFF) /* dont write to reg, | it */
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#define MMCTOR_TOD_20_16_SHIFT (8)
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/* MMC Data Read Tout Reg fields */
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#define MMCTOD_TOD_0_15_MASK (0xFFFF)
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/* MMC Block len Reg fields */
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#define MMCBLEN_BLEN_MASK (0xFFF)
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/* MMC Num Blocks Reg fields */
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#define MMCNBLK_NBLK_MASK (0xFFFF)
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#define MMCNBLK_NBLK_MAX (0xFFFF)
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/* MMC Num Blocks Counter Reg fields */
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#define MMCNBLC_NBLC_MASK (0xFFFF)
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/* MMC Cmd Reg fields */
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#define MMCCMD_CMD_MASK (0x3F)
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#define MMCCMD_PPLEN (1 << 7)
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#define MMCCMD_BSYEXP (1 << 8)
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#define MMCCMD_RSPFMT_NONE (0 << 9)
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#define MMCCMD_RSPFMT_R1567 (1 << 9)
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#define MMCCMD_RSPFMT_R2 (2 << 9)
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#define MMCCMD_RSPFMT_R3 (3 << 9)
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#define MMCCMD_DTRW (1 << 11)
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#define MMCCMD_STRMTP (1 << 12)
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#define MMCCMD_WDATX (1 << 13)
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#define MMCCMD_INITCK (1 << 14)
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#define MMCCMD_DCLR (1 << 15)
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#define MMCCMD_DMATRIG (1 << 16)
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/* FIFO control Reg fields */
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#define MMCFIFOCTL_FIFORST (1 << 0)
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#define MMCFIFOCTL_FIFODIR (1 << 1)
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#define MMCFIFOCTL_FIFOLEV (1 << 2)
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#define MMCFIFOCTL_ACCWD_4 (0 << 3) /* access width of 4 bytes */
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#define MMCFIFOCTL_ACCWD_3 (1 << 3) /* access width of 3 bytes */
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#define MMCFIFOCTL_ACCWD_2 (2 << 3) /* access width of 2 bytes */
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#define MMCFIFOCTL_ACCWD_1 (3 << 3) /* access width of 1 byte */
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/* Davinci MMC Register definitions */
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struct davinci_mmc_regs {
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dv_reg mmcctl;
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dv_reg mmcclk;
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dv_reg mmcst0;
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dv_reg mmcst1;
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dv_reg mmcim;
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dv_reg mmctor;
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dv_reg mmctod;
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dv_reg mmcblen;
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dv_reg mmcnblk;
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dv_reg mmcnblc;
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dv_reg mmcdrr;
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dv_reg mmcdxr;
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dv_reg mmccmd;
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dv_reg mmcarghl;
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dv_reg mmcrsp01;
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dv_reg mmcrsp23;
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dv_reg mmcrsp45;
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dv_reg mmcrsp67;
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dv_reg mmcdrsp;
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dv_reg mmcetok;
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dv_reg mmccidx;
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dv_reg mmcckc;
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dv_reg mmctorc;
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dv_reg mmctodc;
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dv_reg mmcblnc;
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dv_reg sdioctl;
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dv_reg sdiost0;
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dv_reg sdioien;
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dv_reg sdioist;
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dv_reg mmcfifoctl;
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};
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/* Davinci MMC board definitions */
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struct davinci_mmc {
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struct davinci_mmc_regs *reg_base; /* Register base address */
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uint input_clk; /* Input clock to MMC controller */
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uint host_caps; /* Host capabilities */
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uint voltages; /* Host supported voltages */
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struct mmc_config cfg;
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};
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#define DAVINCI_MAX_BLOCKS (32)
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struct davinci_mmc_plat {
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struct davinci_mmc_regs *reg_base; /* Register base address */
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struct mmc_config cfg;
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struct mmc mmc;
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};
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int davinci_mmc_init(bd_t *bis, struct davinci_mmc *host);
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#endif /* _SDMMC_DEFS_H */
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