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/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MATSUSHITA_COMMON_H__
#define __MATSUSHITA_COMMON_H__
#define MATSU_SD_CMD 0x000 /* command */
#define MATSU_SD_CMD_NOSTOP BIT(14) /* No automatic CMD12 issue */
#define MATSU_SD_CMD_MULTI BIT(13) /* multiple block transfer */
#define MATSU_SD_CMD_RD BIT(12) /* 1: read, 0: write */
#define MATSU_SD_CMD_DATA BIT(11) /* data transfer */
#define MATSU_SD_CMD_APP BIT(6) /* ACMD preceded by CMD55 */
#define MATSU_SD_CMD_NORMAL (0 << 8)/* auto-detect of resp-type */
#define MATSU_SD_CMD_RSP_NONE (3 << 8)/* response: none */
#define MATSU_SD_CMD_RSP_R1 (4 << 8)/* response: R1, R5, R6, R7 */
#define MATSU_SD_CMD_RSP_R1B (5 << 8)/* response: R1b, R5b */
#define MATSU_SD_CMD_RSP_R2 (6 << 8)/* response: R2 */
#define MATSU_SD_CMD_RSP_R3 (7 << 8)/* response: R3, R4 */
#define MATSU_SD_ARG 0x008 /* command argument */
#define MATSU_SD_STOP 0x010 /* stop action control */
#define MATSU_SD_STOP_SEC BIT(8) /* use sector count */
#define MATSU_SD_STOP_STP BIT(0) /* issue CMD12 */
#define MATSU_SD_SECCNT 0x014 /* sector counter */
#define MATSU_SD_RSP10 0x018 /* response[39:8] */
#define MATSU_SD_RSP32 0x020 /* response[71:40] */
#define MATSU_SD_RSP54 0x028 /* response[103:72] */
#define MATSU_SD_RSP76 0x030 /* response[127:104] */
#define MATSU_SD_INFO1 0x038 /* IRQ status 1 */
#define MATSU_SD_INFO1_CD BIT(5) /* state of card detect */
#define MATSU_SD_INFO1_INSERT BIT(4) /* card inserted */
#define MATSU_SD_INFO1_REMOVE BIT(3) /* card removed */
#define MATSU_SD_INFO1_CMP BIT(2) /* data complete */
#define MATSU_SD_INFO1_RSP BIT(0) /* response complete */
#define MATSU_SD_INFO2 0x03c /* IRQ status 2 */
#define MATSU_SD_INFO2_ERR_ILA BIT(15) /* illegal access err */
#define MATSU_SD_INFO2_CBSY BIT(14) /* command busy */
#define MATSU_SD_INFO2_BWE BIT(9) /* write buffer ready */
#define MATSU_SD_INFO2_BRE BIT(8) /* read buffer ready */
#define MATSU_SD_INFO2_DAT0 BIT(7) /* SDDAT0 */
#define MATSU_SD_INFO2_ERR_RTO BIT(6) /* response time out */
#define MATSU_SD_INFO2_ERR_ILR BIT(5) /* illegal read err */
#define MATSU_SD_INFO2_ERR_ILW BIT(4) /* illegal write err */
#define MATSU_SD_INFO2_ERR_TO BIT(3) /* time out error */
#define MATSU_SD_INFO2_ERR_END BIT(2) /* END bit error */
#define MATSU_SD_INFO2_ERR_CRC BIT(1) /* CRC error */
#define MATSU_SD_INFO2_ERR_IDX BIT(0) /* cmd index error */
#define MATSU_SD_INFO1_MASK 0x040
#define MATSU_SD_INFO2_MASK 0x044
#define MATSU_SD_CLKCTL 0x048 /* clock divisor */
#define MATSU_SD_CLKCTL_DIV_MASK 0x104ff
#define MATSU_SD_CLKCTL_DIV1024 BIT(16) /* SDCLK = CLK / 1024 */
#define MATSU_SD_CLKCTL_DIV512 BIT(7) /* SDCLK = CLK / 512 */
#define MATSU_SD_CLKCTL_DIV256 BIT(6) /* SDCLK = CLK / 256 */
#define MATSU_SD_CLKCTL_DIV128 BIT(5) /* SDCLK = CLK / 128 */
#define MATSU_SD_CLKCTL_DIV64 BIT(4) /* SDCLK = CLK / 64 */
#define MATSU_SD_CLKCTL_DIV32 BIT(3) /* SDCLK = CLK / 32 */
#define MATSU_SD_CLKCTL_DIV16 BIT(2) /* SDCLK = CLK / 16 */
#define MATSU_SD_CLKCTL_DIV8 BIT(1) /* SDCLK = CLK / 8 */
#define MATSU_SD_CLKCTL_DIV4 BIT(0) /* SDCLK = CLK / 4 */
#define MATSU_SD_CLKCTL_DIV2 0 /* SDCLK = CLK / 2 */
#define MATSU_SD_CLKCTL_DIV1 BIT(10) /* SDCLK = CLK */
#define MATSU_SD_CLKCTL_RCAR_DIV1 0xff /* SDCLK = CLK (RCar ver.) */
#define MATSU_SD_CLKCTL_OFFEN BIT(9) /* stop SDCLK when unused */
#define MATSU_SD_CLKCTL_SCLKEN BIT(8) /* SDCLK output enable */
#define MATSU_SD_SIZE 0x04c /* block size */
#define MATSU_SD_OPTION 0x050
#define MATSU_SD_OPTION_WIDTH_MASK (5 << 13)
#define MATSU_SD_OPTION_WIDTH_1 (4 << 13)
#define MATSU_SD_OPTION_WIDTH_4 (0 << 13)
#define MATSU_SD_OPTION_WIDTH_8 (1 << 13)
#define MATSU_SD_BUF 0x060 /* read/write buffer */
#define MATSU_SD_EXTMODE 0x1b0
#define MATSU_SD_EXTMODE_DMA_EN BIT(1) /* transfer 1: DMA, 0: pio */
#define MATSU_SD_SOFT_RST 0x1c0
#define MATSU_SD_SOFT_RST_RSTX BIT(0) /* reset deassert */
#define MATSU_SD_VERSION 0x1c4 /* version register */
#define MATSU_SD_VERSION_IP 0xff /* IP version */
#define MATSU_SD_HOST_MODE 0x1c8
#define MATSU_SD_IF_MODE 0x1cc
#define MATSU_SD_IF_MODE_DDR BIT(0) /* DDR mode */
#define MATSU_SD_VOLT 0x1e4 /* voltage switch */
#define MATSU_SD_VOLT_MASK (3 << 0)
#define MATSU_SD_VOLT_OFF (0 << 0)
#define MATSU_SD_VOLT_330 (1 << 0)/* 3.3V signal */
#define MATSU_SD_VOLT_180 (2 << 0)/* 1.8V signal */
#define MATSU_SD_DMA_MODE 0x410
#define MATSU_SD_DMA_MODE_DIR_RD BIT(16) /* 1: from device, 0: to dev */
#define MATSU_SD_DMA_MODE_ADDR_INC BIT(0) /* 1: address inc, 0: fixed */
#define MATSU_SD_DMA_CTL 0x414
#define MATSU_SD_DMA_CTL_START BIT(0) /* start DMA (auto cleared) */
#define MATSU_SD_DMA_RST 0x418
#define MATSU_SD_DMA_RST_RD BIT(9)
#define MATSU_SD_DMA_RST_WR BIT(8)
#define MATSU_SD_DMA_INFO1 0x420
#define MATSU_SD_DMA_INFO1_END_RD2 BIT(20) /* DMA from device is complete (uniphier) */
#define MATSU_SD_DMA_INFO1_END_RD BIT(17) /* DMA from device is complete (renesas) */
#define MATSU_SD_DMA_INFO1_END_WR BIT(16) /* DMA to device is complete */
#define MATSU_SD_DMA_INFO1_MASK 0x424
#define MATSU_SD_DMA_INFO2 0x428
#define MATSU_SD_DMA_INFO2_ERR_RD BIT(17)
#define MATSU_SD_DMA_INFO2_ERR_WR BIT(16)
#define MATSU_SD_DMA_INFO2_MASK 0x42c
#define MATSU_SD_DMA_ADDR_L 0x440
#define MATSU_SD_DMA_ADDR_H 0x444
/* alignment required by the DMA engine of this controller */
#define MATSU_SD_DMA_MINALIGN 0x10
struct matsu_sd_plat {
struct mmc_config cfg;
struct mmc mmc;
};
struct matsu_sd_priv {
void __iomem *regbase;
unsigned long mclk;
unsigned int version;
u32 caps;
#define MATSU_SD_CAP_NONREMOVABLE BIT(0) /* Nonremovable e.g. eMMC */
#define MATSU_SD_CAP_DMA_INTERNAL BIT(1) /* have internal DMA engine */
#define MATSU_SD_CAP_DIV1024 BIT(2) /* divisor 1024 is available */
#define MATSU_SD_CAP_64BIT BIT(3) /* Controller is 64bit */
#define MATSU_SD_CAP_16BIT BIT(4) /* Controller is 16bit */
#define MATSU_SD_CAP_RCAR_GEN2 BIT(5) /* Renesas RCar version of IP */
#define MATSU_SD_CAP_RCAR_GEN3 BIT(6) /* Renesas RCar version of IP */
#define MATSU_SD_CAP_RCAR_UHS BIT(7) /* Renesas RCar UHS/SDR modes */
#define MATSU_SD_CAP_RCAR \
(MATSU_SD_CAP_RCAR_GEN2 | MATSU_SD_CAP_RCAR_GEN3)
#ifdef CONFIG_DM_REGULATOR
struct udevice *vqmmc_dev;
#endif
};
int matsu_sd_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
struct mmc_data *data);
int matsu_sd_set_ios(struct udevice *dev);
int matsu_sd_get_cd(struct udevice *dev);
int matsu_sd_bind(struct udevice *dev);
int matsu_sd_probe(struct udevice *dev, u32 quirks);
u32 matsu_sd_readl(struct matsu_sd_priv *priv, unsigned int reg);
void matsu_sd_writel(struct matsu_sd_priv *priv,
u32 val, unsigned int reg);
#endif /* __MATSUSHITA_COMMON_H__ */
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