diff options
Diffstat (limited to 'arch/arm/include/asm/arch-meson/sd_emmc.h')
| -rw-r--r-- | arch/arm/include/asm/arch-meson/sd_emmc.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-meson/sd_emmc.h b/arch/arm/include/asm/arch-meson/sd_emmc.h new file mode 100644 index 0000000..e3a72c8 --- /dev/null +++ b/arch/arm/include/asm/arch-meson/sd_emmc.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2016 Carlo Caione <carlo@caione.org> + */ + +#ifndef __SD_EMMC_H__ +#define __SD_EMMC_H__ + +#include <mmc.h> + +#define SDIO_PORT_A 0 +#define SDIO_PORT_B 1 +#define SDIO_PORT_C 2 + +#define SD_EMMC_CLKSRC_24M 24000000 /* 24 MHz */ +#define SD_EMMC_CLKSRC_DIV2 1000000000 /* 1 GHz */ + +#define MESON_SD_EMMC_CLOCK 0x00 +#define CLK_MAX_DIV 63 +#define CLK_SRC_24M (0 << 6) +#define CLK_SRC_DIV2 (1 << 6) +#define CLK_CO_PHASE_000 (0 << 8) +#define CLK_CO_PHASE_090 (1 << 8) +#define CLK_CO_PHASE_180 (2 << 8) +#define CLK_CO_PHASE_270 (3 << 8) +#define CLK_TX_PHASE_000 (0 << 10) +#define CLK_TX_PHASE_090 (1 << 10) +#define CLK_TX_PHASE_180 (2 << 10) +#define CLK_TX_PHASE_270 (3 << 10) +#define CLK_ALWAYS_ON BIT(24) + +#define MESON_SD_EMMC_CFG 0x44 +#define CFG_BUS_WIDTH_MASK GENMASK(1, 0) +#define CFG_BUS_WIDTH_1 0 +#define CFG_BUS_WIDTH_4 1 +#define CFG_BUS_WIDTH_8 2 +#define CFG_BL_LEN_MASK GENMASK(7, 4) +#define CFG_BL_LEN_SHIFT 4 +#define CFG_BL_LEN_512 (9 << 4) +#define CFG_RESP_TIMEOUT_MASK GENMASK(11, 8) +#define CFG_RESP_TIMEOUT_256 (8 << 8) +#define CFG_RC_CC_MASK GENMASK(15, 12) +#define CFG_RC_CC_16 (4 << 12) +#define CFG_SDCLK_ALWAYS_ON BIT(18) +#define CFG_AUTO_CLK BIT(23) + +#define MESON_SD_EMMC_STATUS 0x48 +#define STATUS_MASK GENMASK(15, 0) +#define STATUS_ERR_MASK GENMASK(12, 0) +#define STATUS_RXD_ERR_MASK GENMASK(7, 0) +#define STATUS_TXD_ERR BIT(8) +#define STATUS_DESC_ERR BIT(9) +#define STATUS_RESP_ERR BIT(10) +#define STATUS_RESP_TIMEOUT BIT(11) +#define STATUS_DESC_TIMEOUT BIT(12) +#define STATUS_END_OF_CHAIN BIT(13) + +#define MESON_SD_EMMC_IRQ_EN 0x4c + +#define MESON_SD_EMMC_CMD_CFG 0x50 +#define CMD_CFG_LENGTH_MASK GENMASK(8, 0) +#define CMD_CFG_BLOCK_MODE BIT(9) +#define CMD_CFG_R1B BIT(10) +#define CMD_CFG_END_OF_CHAIN BIT(11) +#define CMD_CFG_TIMEOUT_4S (12 << 12) +#define CMD_CFG_NO_RESP BIT(16) +#define CMD_CFG_DATA_IO BIT(18) +#define CMD_CFG_DATA_WR BIT(19) +#define CMD_CFG_RESP_NOCRC BIT(20) +#define CMD_CFG_RESP_128 BIT(21) +#define CMD_CFG_CMD_INDEX_SHIFT 24 +#define CMD_CFG_OWNER BIT(31) + +#define MESON_SD_EMMC_CMD_ARG 0x54 +#define MESON_SD_EMMC_CMD_DAT 0x58 +#define MESON_SD_EMMC_CMD_RSP 0x5c +#define MESON_SD_EMMC_CMD_RSP1 0x60 +#define MESON_SD_EMMC_CMD_RSP2 0x64 +#define MESON_SD_EMMC_CMD_RSP3 0x68 + +struct meson_mmc_platdata { + struct mmc_config cfg; + struct mmc mmc; + void *regbase; + void *w_buf; +}; + +#endif |