mmc: uniphier: Split out SoC specific bits from the driver

Factor out common code from the uniphier SD driver, change the prefix
of the functions from uniphier_sd_ to matsu_sd_ and create separate
renesas-sdhi.c driver. Thus far, all the code is still compiled when
CONFIG_UNIPHIER_MMC is selected and there is no functional change.
This patch is a preparation for further split of the SoC specific
parts of the Matsushita SD driver, used both on Uniphier and R-Car.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

1 files changed, 8 insertions, 839 deletions

diff --git a/drivers/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c
index 525b1702b9..72f0d46758 100644
--- a/drivers/mmc/uniphier-sd.c
+++ b/drivers/mmc/uniphier-sd.c
@@ -17,846 +17,15 @@
 #include <power/regulator.h>
 #include <asm/unaligned.h>
 
-DECLARE_GLOBAL_DATA_PTR;
-
-#define UNIPHIER_SD_CMD			0x000	/* command */
-#define   UNIPHIER_SD_CMD_NOSTOP	BIT(14)	/* No automatic CMD12 issue */
-#define   UNIPHIER_SD_CMD_MULTI		BIT(13)	/* multiple block transfer */
-#define   UNIPHIER_SD_CMD_RD		BIT(12)	/* 1: read, 0: write */
-#define   UNIPHIER_SD_CMD_DATA		BIT(11)	/* data transfer */
-#define   UNIPHIER_SD_CMD_APP		BIT(6)	/* ACMD preceded by CMD55 */
-#define   UNIPHIER_SD_CMD_NORMAL	(0 << 8)/* auto-detect of resp-type */
-#define   UNIPHIER_SD_CMD_RSP_NONE	(3 << 8)/* response: none */
-#define   UNIPHIER_SD_CMD_RSP_R1	(4 << 8)/* response: R1, R5, R6, R7 */
-#define   UNIPHIER_SD_CMD_RSP_R1B	(5 << 8)/* response: R1b, R5b */
-#define   UNIPHIER_SD_CMD_RSP_R2	(6 << 8)/* response: R2 */
-#define   UNIPHIER_SD_CMD_RSP_R3	(7 << 8)/* response: R3, R4 */
-#define UNIPHIER_SD_ARG			0x008	/* command argument */
-#define UNIPHIER_SD_STOP		0x010	/* stop action control */
-#define   UNIPHIER_SD_STOP_SEC		BIT(8)	/* use sector count */
-#define   UNIPHIER_SD_STOP_STP		BIT(0)	/* issue CMD12 */
-#define UNIPHIER_SD_SECCNT		0x014	/* sector counter */
-#define UNIPHIER_SD_RSP10		0x018	/* response[39:8] */
-#define UNIPHIER_SD_RSP32		0x020	/* response[71:40] */
-#define UNIPHIER_SD_RSP54		0x028	/* response[103:72] */
-#define UNIPHIER_SD_RSP76		0x030	/* response[127:104] */
-#define UNIPHIER_SD_INFO1		0x038	/* IRQ status 1 */
-#define   UNIPHIER_SD_INFO1_CD		BIT(5)	/* state of card detect */
-#define   UNIPHIER_SD_INFO1_INSERT	BIT(4)	/* card inserted */
-#define   UNIPHIER_SD_INFO1_REMOVE	BIT(3)	/* card removed */
-#define   UNIPHIER_SD_INFO1_CMP		BIT(2)	/* data complete */
-#define   UNIPHIER_SD_INFO1_RSP		BIT(0)	/* response complete */
-#define UNIPHIER_SD_INFO2		0x03c	/* IRQ status 2 */
-#define   UNIPHIER_SD_INFO2_ERR_ILA	BIT(15)	/* illegal access err */
-#define   UNIPHIER_SD_INFO2_CBSY	BIT(14)	/* command busy */
-#define   UNIPHIER_SD_INFO2_BWE		BIT(9)	/* write buffer ready */
-#define   UNIPHIER_SD_INFO2_BRE		BIT(8)	/* read buffer ready */
-#define   UNIPHIER_SD_INFO2_DAT0	BIT(7)	/* SDDAT0 */
-#define   UNIPHIER_SD_INFO2_ERR_RTO	BIT(6)	/* response time out */
-#define   UNIPHIER_SD_INFO2_ERR_ILR	BIT(5)	/* illegal read err */
-#define   UNIPHIER_SD_INFO2_ERR_ILW	BIT(4)	/* illegal write err */
-#define   UNIPHIER_SD_INFO2_ERR_TO	BIT(3)	/* time out error */
-#define   UNIPHIER_SD_INFO2_ERR_END	BIT(2)	/* END bit error */
-#define   UNIPHIER_SD_INFO2_ERR_CRC	BIT(1)	/* CRC error */
-#define   UNIPHIER_SD_INFO2_ERR_IDX	BIT(0)	/* cmd index error */
-#define UNIPHIER_SD_INFO1_MASK		0x040
-#define UNIPHIER_SD_INFO2_MASK		0x044
-#define UNIPHIER_SD_CLKCTL		0x048	/* clock divisor */
-#define   UNIPHIER_SD_CLKCTL_DIV_MASK	0x104ff
-#define   UNIPHIER_SD_CLKCTL_DIV1024	BIT(16)	/* SDCLK = CLK / 1024 */
-#define   UNIPHIER_SD_CLKCTL_DIV512	BIT(7)	/* SDCLK = CLK / 512 */
-#define   UNIPHIER_SD_CLKCTL_DIV256	BIT(6)	/* SDCLK = CLK / 256 */
-#define   UNIPHIER_SD_CLKCTL_DIV128	BIT(5)	/* SDCLK = CLK / 128 */
-#define   UNIPHIER_SD_CLKCTL_DIV64	BIT(4)	/* SDCLK = CLK / 64 */
-#define   UNIPHIER_SD_CLKCTL_DIV32	BIT(3)	/* SDCLK = CLK / 32 */
-#define   UNIPHIER_SD_CLKCTL_DIV16	BIT(2)	/* SDCLK = CLK / 16 */
-#define   UNIPHIER_SD_CLKCTL_DIV8	BIT(1)	/* SDCLK = CLK / 8 */
-#define   UNIPHIER_SD_CLKCTL_DIV4	BIT(0)	/* SDCLK = CLK / 4 */
-#define   UNIPHIER_SD_CLKCTL_DIV2	0	/* SDCLK = CLK / 2 */
-#define   UNIPHIER_SD_CLKCTL_DIV1	BIT(10)	/* SDCLK = CLK */
-#define   UNIPHIER_SD_CLKCTL_OFFEN	BIT(9)	/* stop SDCLK when unused */
-#define   UNIPHIER_SD_CLKCTL_SCLKEN	BIT(8)	/* SDCLK output enable */
-#define UNIPHIER_SD_SIZE		0x04c	/* block size */
-#define UNIPHIER_SD_OPTION		0x050
-#define   UNIPHIER_SD_OPTION_WIDTH_MASK	(5 << 13)
-#define   UNIPHIER_SD_OPTION_WIDTH_1	(4 << 13)
-#define   UNIPHIER_SD_OPTION_WIDTH_4	(0 << 13)
-#define   UNIPHIER_SD_OPTION_WIDTH_8	(1 << 13)
-#define UNIPHIER_SD_BUF			0x060	/* read/write buffer */
-#define UNIPHIER_SD_EXTMODE		0x1b0
-#define   UNIPHIER_SD_EXTMODE_DMA_EN	BIT(1)	/* transfer 1: DMA, 0: pio */
-#define UNIPHIER_SD_SOFT_RST		0x1c0
-#define UNIPHIER_SD_SOFT_RST_RSTX	BIT(0)	/* reset deassert */
-#define UNIPHIER_SD_VERSION		0x1c4	/* version register */
-#define UNIPHIER_SD_VERSION_IP		0xff	/* IP version */
-#define UNIPHIER_SD_HOST_MODE		0x1c8
-#define UNIPHIER_SD_IF_MODE		0x1cc
-#define   UNIPHIER_SD_IF_MODE_DDR	BIT(0)	/* DDR mode */
-#define UNIPHIER_SD_VOLT		0x1e4	/* voltage switch */
-#define   UNIPHIER_SD_VOLT_MASK		(3 << 0)
-#define   UNIPHIER_SD_VOLT_OFF		(0 << 0)
-#define   UNIPHIER_SD_VOLT_330		(1 << 0)/* 3.3V signal */
-#define   UNIPHIER_SD_VOLT_180		(2 << 0)/* 1.8V signal */
-#define UNIPHIER_SD_DMA_MODE		0x410
-#define   UNIPHIER_SD_DMA_MODE_DIR_RD	BIT(16)	/* 1: from device, 0: to dev */
-#define   UNIPHIER_SD_DMA_MODE_ADDR_INC	BIT(0)	/* 1: address inc, 0: fixed */
-#define UNIPHIER_SD_DMA_CTL		0x414
-#define   UNIPHIER_SD_DMA_CTL_START	BIT(0)	/* start DMA (auto cleared) */
-#define UNIPHIER_SD_DMA_RST		0x418
-#define   UNIPHIER_SD_DMA_RST_RD	BIT(9)
-#define   UNIPHIER_SD_DMA_RST_WR	BIT(8)
-#define UNIPHIER_SD_DMA_INFO1		0x420
-#define   UNIPHIER_SD_DMA_INFO1_END_RD2	BIT(20)	/* DMA from device is complete*/
-#define   UNIPHIER_SD_DMA_INFO1_END_RD	BIT(17)	/* Don't use!  Hardware bug */
-#define   UNIPHIER_SD_DMA_INFO1_END_WR	BIT(16)	/* DMA to device is complete */
-#define UNIPHIER_SD_DMA_INFO1_MASK	0x424
-#define UNIPHIER_SD_DMA_INFO2		0x428
-#define   UNIPHIER_SD_DMA_INFO2_ERR_RD	BIT(17)
-#define   UNIPHIER_SD_DMA_INFO2_ERR_WR	BIT(16)
-#define UNIPHIER_SD_DMA_INFO2_MASK	0x42c
-#define UNIPHIER_SD_DMA_ADDR_L		0x440
-#define UNIPHIER_SD_DMA_ADDR_H		0x444
-
-/* alignment required by the DMA engine of this controller */
-#define UNIPHIER_SD_DMA_MINALIGN	0x10
-
-struct uniphier_sd_plat {
-	struct mmc_config cfg;
-	struct mmc mmc;
-};
-
-struct uniphier_sd_priv {
-	void __iomem *regbase;
-	unsigned long mclk;
-	unsigned int version;
-	u32 caps;
-#define UNIPHIER_SD_CAP_NONREMOVABLE	BIT(0)	/* Nonremovable e.g. eMMC */
-#define UNIPHIER_SD_CAP_DMA_INTERNAL	BIT(1)	/* have internal DMA engine */
-#define UNIPHIER_SD_CAP_DIV1024		BIT(2)	/* divisor 1024 is available */
-#define UNIPHIER_SD_CAP_64BIT		BIT(3)	/* Controller is 64bit */
-};
-
-static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, unsigned int reg)
-{
-	if (priv->caps & UNIPHIER_SD_CAP_64BIT)
-		return readq(priv->regbase + (reg << 1));
-	else
-		return readq(priv->regbase + reg);
-}
-
-static void uniphier_sd_writeq(struct uniphier_sd_priv *priv,
-			       u64 val, unsigned int reg)
-{
-	if (priv->caps & UNIPHIER_SD_CAP_64BIT)
-		writeq(val, priv->regbase + (reg << 1));
-	else
-		writeq(val, priv->regbase + reg);
-}
-
-static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, unsigned int reg)
-{
-	if (priv->caps & UNIPHIER_SD_CAP_64BIT)
-		return readl(priv->regbase + (reg << 1));
-	else
-		return readl(priv->regbase + reg);
-}
-
-static void uniphier_sd_writel(struct uniphier_sd_priv *priv,
-			       u32 val, unsigned int reg)
-{
-	if (priv->caps & UNIPHIER_SD_CAP_64BIT)
-		writel(val, priv->regbase + (reg << 1));
-	else
-		writel(val, priv->regbase + reg);
-}
-
-static dma_addr_t __dma_map_single(void *ptr, size_t size,
-				   enum dma_data_direction dir)
-{
-	unsigned long addr = (unsigned long)ptr;
-
-	if (dir == DMA_FROM_DEVICE)
-		invalidate_dcache_range(addr, addr + size);
-	else
-		flush_dcache_range(addr, addr + size);
-
-	return addr;
-}
-
-static void __dma_unmap_single(dma_addr_t addr, size_t size,
-			       enum dma_data_direction dir)
-{
-	if (dir != DMA_TO_DEVICE)
-		invalidate_dcache_range(addr, addr + size);
-}
-
-static int uniphier_sd_check_error(struct udevice *dev)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	u32 info2 = uniphier_sd_readl(priv, UNIPHIER_SD_INFO2);
-
-	if (info2 & UNIPHIER_SD_INFO2_ERR_RTO) {
-		/*
-		 * TIMEOUT must be returned for unsupported command.  Do not
-		 * display error log since this might be a part of sequence to
-		 * distinguish between SD and MMC.
-		 */
-		return -ETIMEDOUT;
-	}
-
-	if (info2 & UNIPHIER_SD_INFO2_ERR_TO) {
-		dev_err(dev, "timeout error\n");
-		return -ETIMEDOUT;
-	}
-
-	if (info2 & (UNIPHIER_SD_INFO2_ERR_END | UNIPHIER_SD_INFO2_ERR_CRC |
-		     UNIPHIER_SD_INFO2_ERR_IDX)) {
-		dev_err(dev, "communication out of sync\n");
-		return -EILSEQ;
-	}
-
-	if (info2 & (UNIPHIER_SD_INFO2_ERR_ILA | UNIPHIER_SD_INFO2_ERR_ILR |
-		     UNIPHIER_SD_INFO2_ERR_ILW)) {
-		dev_err(dev, "illegal access\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int uniphier_sd_wait_for_irq(struct udevice *dev, unsigned int reg,
-				    u32 flag)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	long wait = 1000000;
-	int ret;
-
-	while (!(uniphier_sd_readl(priv, reg) & flag)) {
-		if (wait-- < 0) {
-			dev_err(dev, "timeout\n");
-			return -ETIMEDOUT;
-		}
-
-		ret = uniphier_sd_check_error(dev);
-		if (ret)
-			return ret;
-
-		udelay(1);
-	}
-
-	return 0;
-}
-
-static int uniphier_sd_pio_read_one_block(struct udevice *dev, char *pbuf,
-					  uint blocksize)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	int i, ret;
-
-	/* wait until the buffer is filled with data */
-	ret = uniphier_sd_wait_for_irq(dev, UNIPHIER_SD_INFO2,
-				       UNIPHIER_SD_INFO2_BRE);
-	if (ret)
-		return ret;
-
-	/*
-	 * Clear the status flag _before_ read the buffer out because
-	 * UNIPHIER_SD_INFO2_BRE is edge-triggered, not level-triggered.
-	 */
-	uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2);
-
-	if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
-		u64 *buf = (u64 *)pbuf;
-		if (likely(IS_ALIGNED((uintptr_t)buf, 8))) {
-			for (i = 0; i < blocksize / 8; i++) {
-				*buf++ = uniphier_sd_readq(priv,
-							   UNIPHIER_SD_BUF);
-			}
-		} else {
-			for (i = 0; i < blocksize / 8; i++) {
-				u64 data;
-				data = uniphier_sd_readq(priv,
-							 UNIPHIER_SD_BUF);
-				put_unaligned(data, buf++);
-			}
-		}
-	} else {
-		u32 *buf = (u32 *)pbuf;
-		if (likely(IS_ALIGNED((uintptr_t)buf, 4))) {
-			for (i = 0; i < blocksize / 4; i++) {
-				*buf++ = uniphier_sd_readl(priv,
-							   UNIPHIER_SD_BUF);
-			}
-		} else {
-			for (i = 0; i < blocksize / 4; i++) {
-				u32 data;
-				data = uniphier_sd_readl(priv, UNIPHIER_SD_BUF);
-				put_unaligned(data, buf++);
-			}
-		}
-	}
-
-	return 0;
-}
-
-static int uniphier_sd_pio_write_one_block(struct udevice *dev,
-					   const char *pbuf, uint blocksize)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	int i, ret;
-
-	/* wait until the buffer becomes empty */
-	ret = uniphier_sd_wait_for_irq(dev, UNIPHIER_SD_INFO2,
-				       UNIPHIER_SD_INFO2_BWE);
-	if (ret)
-		return ret;
-
-	uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2);
-
-	if (priv->caps & UNIPHIER_SD_CAP_64BIT) {
-		const u64 *buf = (const u64 *)pbuf;
-		if (likely(IS_ALIGNED((uintptr_t)buf, 8))) {
-			for (i = 0; i < blocksize / 8; i++) {
-				uniphier_sd_writeq(priv, *buf++,
-						   UNIPHIER_SD_BUF);
-			}
-		} else {
-			for (i = 0; i < blocksize / 8; i++) {
-				u64 data = get_unaligned(buf++);
-				uniphier_sd_writeq(priv, data,
-						   UNIPHIER_SD_BUF);
-			}
-		}
-	} else {
-		const u32 *buf = (const u32 *)pbuf;
-		if (likely(IS_ALIGNED((uintptr_t)buf, 4))) {
-			for (i = 0; i < blocksize / 4; i++) {
-				uniphier_sd_writel(priv, *buf++,
-						   UNIPHIER_SD_BUF);
-			}
-		} else {
-			for (i = 0; i < blocksize / 4; i++) {
-				u32 data = get_unaligned(buf++);
-				uniphier_sd_writel(priv, data,
-						   UNIPHIER_SD_BUF);
-			}
-		}
-	}
-
-	return 0;
-}
-
-static int uniphier_sd_pio_xfer(struct udevice *dev, struct mmc_data *data)
-{
-	const char *src = data->src;
-	char *dest = data->dest;
-	int i, ret;
-
-	for (i = 0; i < data->blocks; i++) {
-		if (data->flags & MMC_DATA_READ)
-			ret = uniphier_sd_pio_read_one_block(dev, dest,
-							     data->blocksize);
-		else
-			ret = uniphier_sd_pio_write_one_block(dev, src,
-							      data->blocksize);
-		if (ret)
-			return ret;
-
-		if (data->flags & MMC_DATA_READ)
-			dest += data->blocksize;
-		else
-			src += data->blocksize;
-	}
-
-	return 0;
-}
-
-static void uniphier_sd_dma_start(struct uniphier_sd_priv *priv,
-				  dma_addr_t dma_addr)
-{
-	u32 tmp;
-
-	uniphier_sd_writel(priv, 0, UNIPHIER_SD_DMA_INFO1);
-	uniphier_sd_writel(priv, 0, UNIPHIER_SD_DMA_INFO2);
-
-	/* enable DMA */
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_EXTMODE);
-	tmp |= UNIPHIER_SD_EXTMODE_DMA_EN;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_EXTMODE);
-
-	uniphier_sd_writel(priv, dma_addr & U32_MAX, UNIPHIER_SD_DMA_ADDR_L);
-
-	/* suppress the warning "right shift count >= width of type" */
-	dma_addr >>= min_t(int, 32, 8 * sizeof(dma_addr));
-
-	uniphier_sd_writel(priv, dma_addr & U32_MAX, UNIPHIER_SD_DMA_ADDR_H);
-
-	uniphier_sd_writel(priv, UNIPHIER_SD_DMA_CTL_START, UNIPHIER_SD_DMA_CTL);
-}
-
-static int uniphier_sd_dma_wait_for_irq(struct udevice *dev, u32 flag,
-					unsigned int blocks)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	long wait = 1000000 + 10 * blocks;
-
-	while (!(uniphier_sd_readl(priv, UNIPHIER_SD_DMA_INFO1) & flag)) {
-		if (wait-- < 0) {
-			dev_err(dev, "timeout during DMA\n");
-			return -ETIMEDOUT;
-		}
-
-		udelay(10);
-	}
-
-	if (uniphier_sd_readl(priv, UNIPHIER_SD_DMA_INFO2)) {
-		dev_err(dev, "error during DMA\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int uniphier_sd_dma_xfer(struct udevice *dev, struct mmc_data *data)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	size_t len = data->blocks * data->blocksize;
-	void *buf;
-	enum dma_data_direction dir;
-	dma_addr_t dma_addr;
-	u32 poll_flag, tmp;
-	int ret;
-
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_DMA_MODE);
-
-	if (data->flags & MMC_DATA_READ) {
-		buf = data->dest;
-		dir = DMA_FROM_DEVICE;
-		poll_flag = UNIPHIER_SD_DMA_INFO1_END_RD2;
-		tmp |= UNIPHIER_SD_DMA_MODE_DIR_RD;
-	} else {
-		buf = (void *)data->src;
-		dir = DMA_TO_DEVICE;
-		poll_flag = UNIPHIER_SD_DMA_INFO1_END_WR;
-		tmp &= ~UNIPHIER_SD_DMA_MODE_DIR_RD;
-	}
-
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_DMA_MODE);
-
-	dma_addr = __dma_map_single(buf, len, dir);
-
-	uniphier_sd_dma_start(priv, dma_addr);
-
-	ret = uniphier_sd_dma_wait_for_irq(dev, poll_flag, data->blocks);
-
-	__dma_unmap_single(dma_addr, len, dir);
-
-	return ret;
-}
-
-/* check if the address is DMA'able */
-static bool uniphier_sd_addr_is_dmaable(unsigned long addr)
-{
-	if (!IS_ALIGNED(addr, UNIPHIER_SD_DMA_MINALIGN))
-		return false;
-
-#if defined(CONFIG_ARCH_UNIPHIER) && !defined(CONFIG_ARM64) && \
-	defined(CONFIG_SPL_BUILD)
-	/*
-	 * For UniPhier ARMv7 SoCs, the stack is allocated in the locked ways
-	 * of L2, which is unreachable from the DMA engine.
-	 */
-	if (addr < CONFIG_SPL_STACK)
-		return false;
-#endif
-
-	return true;
-}
-
-static int uniphier_sd_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
-				struct mmc_data *data)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	int ret;
-	u32 tmp;
-
-	if (uniphier_sd_readl(priv, UNIPHIER_SD_INFO2) & UNIPHIER_SD_INFO2_CBSY) {
-		dev_err(dev, "command busy\n");
-		return -EBUSY;
-	}
-
-	/* clear all status flags */
-	uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO1);
-	uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2);
-
-	/* disable DMA once */
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_EXTMODE);
-	tmp &= ~UNIPHIER_SD_EXTMODE_DMA_EN;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_EXTMODE);
-
-	uniphier_sd_writel(priv, cmd->cmdarg, UNIPHIER_SD_ARG);
-
-	tmp = cmd->cmdidx;
-
-	if (data) {
-		uniphier_sd_writel(priv, data->blocksize, UNIPHIER_SD_SIZE);
-		uniphier_sd_writel(priv, data->blocks, UNIPHIER_SD_SECCNT);
-
-		/* Do not send CMD12 automatically */
-		tmp |= UNIPHIER_SD_CMD_NOSTOP | UNIPHIER_SD_CMD_DATA;
-
-		if (data->blocks > 1)
-			tmp |= UNIPHIER_SD_CMD_MULTI;
-
-		if (data->flags & MMC_DATA_READ)
-			tmp |= UNIPHIER_SD_CMD_RD;
-	}
-
-	/*
-	 * Do not use the response type auto-detection on this hardware.
-	 * CMD8, for example, has different response types on SD and eMMC,
-	 * while this controller always assumes the response type for SD.
-	 * Set the response type manually.
-	 */
-	switch (cmd->resp_type) {
-	case MMC_RSP_NONE:
-		tmp |= UNIPHIER_SD_CMD_RSP_NONE;
-		break;
-	case MMC_RSP_R1:
-		tmp |= UNIPHIER_SD_CMD_RSP_R1;
-		break;
-	case MMC_RSP_R1b:
-		tmp |= UNIPHIER_SD_CMD_RSP_R1B;
-		break;
-	case MMC_RSP_R2:
-		tmp |= UNIPHIER_SD_CMD_RSP_R2;
-		break;
-	case MMC_RSP_R3:
-		tmp |= UNIPHIER_SD_CMD_RSP_R3;
-		break;
-	default:
-		dev_err(dev, "unknown response type\n");
-		return -EINVAL;
-	}
-
-	dev_dbg(dev, "sending CMD%d (SD_CMD=%08x, SD_ARG=%08x)\n",
-		cmd->cmdidx, tmp, cmd->cmdarg);
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_CMD);
-
-	ret = uniphier_sd_wait_for_irq(dev, UNIPHIER_SD_INFO1,
-				       UNIPHIER_SD_INFO1_RSP);
-	if (ret)
-		return ret;
-
-	if (cmd->resp_type & MMC_RSP_136) {
-		u32 rsp_127_104 = uniphier_sd_readl(priv, UNIPHIER_SD_RSP76);
-		u32 rsp_103_72 = uniphier_sd_readl(priv, UNIPHIER_SD_RSP54);
-		u32 rsp_71_40 = uniphier_sd_readl(priv, UNIPHIER_SD_RSP32);
-		u32 rsp_39_8 = uniphier_sd_readl(priv, UNIPHIER_SD_RSP10);
-
-		cmd->response[0] = ((rsp_127_104 & 0x00ffffff) << 8) |
-				   ((rsp_103_72  & 0xff000000) >> 24);
-		cmd->response[1] = ((rsp_103_72  & 0x00ffffff) << 8) |
-				   ((rsp_71_40   & 0xff000000) >> 24);
-		cmd->response[2] = ((rsp_71_40   & 0x00ffffff) << 8) |
-				   ((rsp_39_8    & 0xff000000) >> 24);
-		cmd->response[3] = (rsp_39_8     & 0xffffff)   << 8;
-	} else {
-		/* bit 39-8 */
-		cmd->response[0] = uniphier_sd_readl(priv, UNIPHIER_SD_RSP10);
-	}
-
-	if (data) {
-		/* use DMA if the HW supports it and the buffer is aligned */
-		if (priv->caps & UNIPHIER_SD_CAP_DMA_INTERNAL &&
-		    uniphier_sd_addr_is_dmaable((long)data->src))
-			ret = uniphier_sd_dma_xfer(dev, data);
-		else
-			ret = uniphier_sd_pio_xfer(dev, data);
-
-		ret = uniphier_sd_wait_for_irq(dev, UNIPHIER_SD_INFO1,
-					       UNIPHIER_SD_INFO1_CMP);
-		if (ret)
-			return ret;
-	}
-
-	return ret;
-}
-
-static int uniphier_sd_set_bus_width(struct uniphier_sd_priv *priv,
-				     struct mmc *mmc)
-{
-	u32 val, tmp;
-
-	switch (mmc->bus_width) {
-	case 1:
-		val = UNIPHIER_SD_OPTION_WIDTH_1;
-		break;
-	case 4:
-		val = UNIPHIER_SD_OPTION_WIDTH_4;
-		break;
-	case 8:
-		val = UNIPHIER_SD_OPTION_WIDTH_8;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_OPTION);
-	tmp &= ~UNIPHIER_SD_OPTION_WIDTH_MASK;
-	tmp |= val;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_OPTION);
-
-	return 0;
-}
-
-static void uniphier_sd_set_ddr_mode(struct uniphier_sd_priv *priv,
-				     struct mmc *mmc)
-{
-	u32 tmp;
-
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_IF_MODE);
-	if (mmc->ddr_mode)
-		tmp |= UNIPHIER_SD_IF_MODE_DDR;
-	else
-		tmp &= ~UNIPHIER_SD_IF_MODE_DDR;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_IF_MODE);
-}
-
-static void uniphier_sd_set_clk_rate(struct uniphier_sd_priv *priv,
-				     struct mmc *mmc)
-{
-	unsigned int divisor;
-	u32 val, tmp;
-
-	if (!mmc->clock)
-		return;
-
-	divisor = DIV_ROUND_UP(priv->mclk, mmc->clock);
-
-	if (divisor <= 1)
-		val = UNIPHIER_SD_CLKCTL_DIV1;
-	else if (divisor <= 2)
-		val = UNIPHIER_SD_CLKCTL_DIV2;
-	else if (divisor <= 4)
-		val = UNIPHIER_SD_CLKCTL_DIV4;
-	else if (divisor <= 8)
-		val = UNIPHIER_SD_CLKCTL_DIV8;
-	else if (divisor <= 16)
-		val = UNIPHIER_SD_CLKCTL_DIV16;
-	else if (divisor <= 32)
-		val = UNIPHIER_SD_CLKCTL_DIV32;
-	else if (divisor <= 64)
-		val = UNIPHIER_SD_CLKCTL_DIV64;
-	else if (divisor <= 128)
-		val = UNIPHIER_SD_CLKCTL_DIV128;
-	else if (divisor <= 256)
-		val = UNIPHIER_SD_CLKCTL_DIV256;
-	else if (divisor <= 512 || !(priv->caps & UNIPHIER_SD_CAP_DIV1024))
-		val = UNIPHIER_SD_CLKCTL_DIV512;
-	else
-		val = UNIPHIER_SD_CLKCTL_DIV1024;
-
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_CLKCTL);
-	if (tmp & UNIPHIER_SD_CLKCTL_SCLKEN &&
-	    (tmp & UNIPHIER_SD_CLKCTL_DIV_MASK) == val)
-		return;
-
-	/* stop the clock before changing its rate to avoid a glitch signal */
-	tmp &= ~UNIPHIER_SD_CLKCTL_SCLKEN;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_CLKCTL);
-
-	tmp &= ~UNIPHIER_SD_CLKCTL_DIV_MASK;
-	tmp |= val | UNIPHIER_SD_CLKCTL_OFFEN;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_CLKCTL);
-
-	tmp |= UNIPHIER_SD_CLKCTL_SCLKEN;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_CLKCTL);
-
-	udelay(1000);
-}
-
-static int uniphier_sd_set_ios(struct udevice *dev)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	struct mmc *mmc = mmc_get_mmc_dev(dev);
-	int ret;
-
-	dev_dbg(dev, "clock %uHz, DDRmode %d, width %u\n",
-		mmc->clock, mmc->ddr_mode, mmc->bus_width);
-
-	ret = uniphier_sd_set_bus_width(priv, mmc);
-	if (ret)
-		return ret;
-	uniphier_sd_set_ddr_mode(priv, mmc);
-	uniphier_sd_set_clk_rate(priv, mmc);
-
-	return 0;
-}
-
-static int uniphier_sd_get_cd(struct udevice *dev)
-{
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-
-	if (priv->caps & UNIPHIER_SD_CAP_NONREMOVABLE)
-		return 1;
-
-	return !!(uniphier_sd_readl(priv, UNIPHIER_SD_INFO1) &
-		  UNIPHIER_SD_INFO1_CD);
-}
+#include "matsushita-common.h"
 
 static const struct dm_mmc_ops uniphier_sd_ops = {
-	.send_cmd = uniphier_sd_send_cmd,
-	.set_ios = uniphier_sd_set_ios,
-	.get_cd = uniphier_sd_get_cd,
+	.send_cmd = matsu_sd_send_cmd,
+	.set_ios = matsu_sd_set_ios,
+	.get_cd = matsu_sd_get_cd,
 };
 
-static void uniphier_sd_host_init(struct uniphier_sd_priv *priv)
-{
-	u32 tmp;
-
-	/* soft reset of the host */
-	tmp = uniphier_sd_readl(priv, UNIPHIER_SD_SOFT_RST);
-	tmp &= ~UNIPHIER_SD_SOFT_RST_RSTX;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_SOFT_RST);
-	tmp |= UNIPHIER_SD_SOFT_RST_RSTX;
-	uniphier_sd_writel(priv, tmp, UNIPHIER_SD_SOFT_RST);
-
-	/* FIXME: implement eMMC hw_reset */
-
-	uniphier_sd_writel(priv, UNIPHIER_SD_STOP_SEC, UNIPHIER_SD_STOP);
-
-	/*
-	 * Connected to 32bit AXI.
-	 * This register dropped backward compatibility at version 0x10.
-	 * Write an appropriate value depending on the IP version.
-	 */
-	uniphier_sd_writel(priv, priv->version >= 0x10 ? 0x00000101 : 0x00000000,
-			   UNIPHIER_SD_HOST_MODE);
-
-	if (priv->caps & UNIPHIER_SD_CAP_DMA_INTERNAL) {
-		tmp = uniphier_sd_readl(priv, UNIPHIER_SD_DMA_MODE);
-		tmp |= UNIPHIER_SD_DMA_MODE_ADDR_INC;
-		uniphier_sd_writel(priv, tmp, UNIPHIER_SD_DMA_MODE);
-	}
-}
-
-static int uniphier_sd_bind(struct udevice *dev)
-{
-	struct uniphier_sd_plat *plat = dev_get_platdata(dev);
-
-	return mmc_bind(dev, &plat->mmc, &plat->cfg);
-}
-
-static int uniphier_sd_probe(struct udevice *dev)
-{
-	struct uniphier_sd_plat *plat = dev_get_platdata(dev);
-	struct uniphier_sd_priv *priv = dev_get_priv(dev);
-	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
-	const u32 quirks = dev_get_driver_data(dev);
-	fdt_addr_t base;
-	struct clk clk;
-	int ret;
-#ifdef CONFIG_DM_REGULATOR
-	struct udevice *vqmmc_dev;
-#endif
-
-	base = devfdt_get_addr(dev);
-	if (base == FDT_ADDR_T_NONE)
-		return -EINVAL;
-
-	priv->regbase = devm_ioremap(dev, base, SZ_2K);
-	if (!priv->regbase)
-		return -ENOMEM;
-
-#ifdef CONFIG_DM_REGULATOR
-	ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev);
-	if (!ret) {
-		/* Set the regulator to 3.3V until we support 1.8V modes */
-		regulator_set_value(vqmmc_dev, 3300000);
-		regulator_set_enable(vqmmc_dev, true);
-	}
-#endif
-
-	ret = clk_get_by_index(dev, 0, &clk);
-	if (ret < 0) {
-		dev_err(dev, "failed to get host clock\n");
-		return ret;
-	}
-
-	/* set to max rate */
-	priv->mclk = clk_set_rate(&clk, ULONG_MAX);
-	if (IS_ERR_VALUE(priv->mclk)) {
-		dev_err(dev, "failed to set rate for host clock\n");
-		clk_free(&clk);
-		return priv->mclk;
-	}
-
-	ret = clk_enable(&clk);
-	clk_free(&clk);
-	if (ret) {
-		dev_err(dev, "failed to enable host clock\n");
-		return ret;
-	}
-
-	plat->cfg.name = dev->name;
-	plat->cfg.host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS;
-
-	switch (fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "bus-width",
-			       1)) {
-	case 8:
-		plat->cfg.host_caps |= MMC_MODE_8BIT;
-		break;
-	case 4:
-		plat->cfg.host_caps |= MMC_MODE_4BIT;
-		break;
-	case 1:
-		break;
-	default:
-		dev_err(dev, "Invalid \"bus-width\" value\n");
-		return -EINVAL;
-	}
-
-	if (quirks) {
-		priv->caps = quirks;
-	} else {
-		priv->version = uniphier_sd_readl(priv, UNIPHIER_SD_VERSION) &
-							UNIPHIER_SD_VERSION_IP;
-		dev_dbg(dev, "version %x\n", priv->version);
-		if (priv->version >= 0x10) {
-			priv->caps |= UNIPHIER_SD_CAP_DMA_INTERNAL;
-			priv->caps |= UNIPHIER_SD_CAP_DIV1024;
-		}
-	}
-
-	if (fdt_get_property(gd->fdt_blob, dev_of_offset(dev), "non-removable",
-			     NULL))
-		priv->caps |= UNIPHIER_SD_CAP_NONREMOVABLE;
-
-	uniphier_sd_host_init(priv);
-
-	plat->cfg.voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34;
-	plat->cfg.f_min = priv->mclk /
-			(priv->caps & UNIPHIER_SD_CAP_DIV1024 ? 1024 : 512);
-	plat->cfg.f_max = priv->mclk;
-	plat->cfg.b_max = U32_MAX; /* max value of UNIPHIER_SD_SECCNT */
-
-	upriv->mmc = &plat->mmc;
-
-	return 0;
-}
-
 static const struct udevice_id uniphier_sd_match[] = {
-	{ .compatible = "renesas,sdhi-r8a7790", .data = 0 },
-	{ .compatible = "renesas,sdhi-r8a7791", .data = 0 },
-	{ .compatible = "renesas,sdhi-r8a7792", .data = 0 },
-	{ .compatible = "renesas,sdhi-r8a7793", .data = 0 },
-	{ .compatible = "renesas,sdhi-r8a7794", .data = 0 },
-	{ .compatible = "renesas,sdhi-r8a7795", .data = UNIPHIER_SD_CAP_64BIT },
-	{ .compatible = "renesas,sdhi-r8a7796", .data = UNIPHIER_SD_CAP_64BIT },
-	{ .compatible = "renesas,sdhi-r8a77965", .data = UNIPHIER_SD_CAP_64BIT },
-	{ .compatible = "renesas,sdhi-r8a77970", .data = UNIPHIER_SD_CAP_64BIT },
-	{ .compatible = "renesas,sdhi-r8a77995", .data = UNIPHIER_SD_CAP_64BIT },
 	{ .compatible = "socionext,uniphier-sdhc", .data = 0 },
 	{ /* sentinel */ }
 };
@@ -865,9 +34,9 @@ U_BOOT_DRIVER(uniphier_mmc) = {
 	.name = "uniphier-mmc",
 	.id = UCLASS_MMC,
 	.of_match = uniphier_sd_match,
-	.bind = uniphier_sd_bind,
-	.probe = uniphier_sd_probe,
-	.priv_auto_alloc_size = sizeof(struct uniphier_sd_priv),
-	.platdata_auto_alloc_size = sizeof(struct uniphier_sd_plat),
+	.bind = matsu_sd_bind,
+	.probe = matsu_sd_probe,
+	.priv_auto_alloc_size = sizeof(struct matsu_sd_priv),
+	.platdata_auto_alloc_size = sizeof(struct matsu_sd_plat),
 	.ops = &uniphier_sd_ops,
 };