samsung: mmc: Drop s3c_sdi driver

This is no-longer used in U-Boot. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

2 files changed, 0 insertions, 324 deletions

diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index a078649899..2d781c38a6 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -40,7 +40,6 @@ obj-$(CONFIG_MMC_MXS)			+= mxsmmc.o
 obj-$(CONFIG_MMC_PCI)			+= pci_mmc.o
 obj-$(CONFIG_PXA_MMC_GENERIC) += pxa_mmc_gen.o
 obj-$(CONFIG_SUPPORT_EMMC_RPMB) += rpmb.o
-obj-$(CONFIG_S3C_SDI) += s3c_sdi.o
 obj-$(CONFIG_MMC_SANDBOX)		+= sandbox_mmc.o
 obj-$(CONFIG_SH_MMCIF) += sh_mmcif.o
 obj-$(CONFIG_SH_SDHI) += sh_sdhi.o
diff --git a/drivers/mmc/s3c_sdi.c b/drivers/mmc/s3c_sdi.c
deleted file mode 100644
index faf7b83a14..0000000000
--- a/drivers/mmc/s3c_sdi.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * S3C24xx SD/MMC driver
- *
- * Based on OpenMoko S3C24xx driver by Harald Welte <laforge@openmoko.org>
- *
- * Copyright (C) 2014 Marek Vasut <marex@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <mmc.h>
-#include <errno.h>
-#include <asm/arch/s3c24x0_cpu.h>
-#include <asm/io.h>
-#include <asm/unaligned.h>
-
-#define S3C2440_SDICON_SDRESET		(1 << 8)
-#define S3C2410_SDICON_FIFORESET	(1 << 1)
-#define S3C2410_SDICON_CLOCKTYPE	(1 << 0)
-
-#define S3C2410_SDICMDCON_LONGRSP	(1 << 10)
-#define S3C2410_SDICMDCON_WAITRSP	(1 << 9)
-#define S3C2410_SDICMDCON_CMDSTART	(1 << 8)
-#define S3C2410_SDICMDCON_SENDERHOST	(1 << 6)
-#define S3C2410_SDICMDCON_INDEX		0x3f
-
-#define S3C2410_SDICMDSTAT_CRCFAIL	(1 << 12)
-#define S3C2410_SDICMDSTAT_CMDSENT	(1 << 11)
-#define S3C2410_SDICMDSTAT_CMDTIMEOUT	(1 << 10)
-#define S3C2410_SDICMDSTAT_RSPFIN	(1 << 9)
-
-#define S3C2440_SDIDCON_DS_WORD		(2 << 22)
-#define S3C2410_SDIDCON_TXAFTERRESP	(1 << 20)
-#define S3C2410_SDIDCON_RXAFTERCMD	(1 << 19)
-#define S3C2410_SDIDCON_BLOCKMODE	(1 << 17)
-#define S3C2410_SDIDCON_WIDEBUS		(1 << 16)
-#define S3C2440_SDIDCON_DATSTART	(1 << 14)
-#define S3C2410_SDIDCON_XFER_RXSTART	(2 << 12)
-#define S3C2410_SDIDCON_XFER_TXSTART	(3 << 12)
-#define S3C2410_SDIDCON_BLKNUM		0x7ff
-
-#define S3C2410_SDIDSTA_FIFOFAIL	(1 << 8)
-#define S3C2410_SDIDSTA_CRCFAIL		(1 << 7)
-#define S3C2410_SDIDSTA_RXCRCFAIL	(1 << 6)
-#define S3C2410_SDIDSTA_DATATIMEOUT	(1 << 5)
-#define S3C2410_SDIDSTA_XFERFINISH	(1 << 4)
-
-#define S3C2410_SDIFSTA_TFHALF		(1 << 11)
-#define S3C2410_SDIFSTA_COUNTMASK	0x7f
-
-/*
- * WARNING: We only support one SD IP block.
- * NOTE: It's not likely there will ever exist an S3C24xx with two,
- *       at least not in this universe all right.
- */
-static int wide_bus;
-
-static int
-s3cmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
-{
-	struct s3c24x0_sdi *sdi_regs = s3c24x0_get_base_sdi();
-	uint32_t sdiccon, sdicsta, sdidcon, sdidsta, sdidat, sdifsta;
-	uint32_t sdicsta_wait_bit = S3C2410_SDICMDSTAT_CMDSENT;
-	unsigned int timeout = 100000;
-	int ret = 0, xfer_len, data_offset = 0;
-	const uint32_t sdidsta_err_mask = S3C2410_SDIDSTA_FIFOFAIL |
-		S3C2410_SDIDSTA_CRCFAIL | S3C2410_SDIDSTA_RXCRCFAIL |
-		S3C2410_SDIDSTA_DATATIMEOUT;
-
-
-	writel(0xffffffff, &sdi_regs->sdicsta);
-	writel(0xffffffff, &sdi_regs->sdidsta);
-	writel(0xffffffff, &sdi_regs->sdifsta);
-
-	/* Set up data transfer (if applicable). */
-	if (data) {
-		writel(data->blocksize, &sdi_regs->sdibsize);
-
-		sdidcon = data->blocks & S3C2410_SDIDCON_BLKNUM;
-		sdidcon |= S3C2410_SDIDCON_BLOCKMODE;
-#if defined(CONFIG_S3C2440)
-		sdidcon |= S3C2440_SDIDCON_DS_WORD | S3C2440_SDIDCON_DATSTART;
-#endif
-		if (wide_bus)
-			sdidcon |= S3C2410_SDIDCON_WIDEBUS;
-
-		if (data->flags & MMC_DATA_READ) {
-			sdidcon |= S3C2410_SDIDCON_RXAFTERCMD;
-			sdidcon |= S3C2410_SDIDCON_XFER_RXSTART;
-		} else {
-			sdidcon |= S3C2410_SDIDCON_TXAFTERRESP;
-			sdidcon |= S3C2410_SDIDCON_XFER_TXSTART;
-		}
-
-		writel(sdidcon, &sdi_regs->sdidcon);
-	}
-
-	/* Write CMD arg. */
-	writel(cmd->cmdarg, &sdi_regs->sdicarg);
-
-	/* Write CMD index. */
-	sdiccon = cmd->cmdidx & S3C2410_SDICMDCON_INDEX;
-	sdiccon |= S3C2410_SDICMDCON_SENDERHOST;
-	sdiccon |= S3C2410_SDICMDCON_CMDSTART;
-
-	/* Command with short response. */
-	if (cmd->resp_type & MMC_RSP_PRESENT) {
-		sdiccon |= S3C2410_SDICMDCON_WAITRSP;
-		sdicsta_wait_bit = S3C2410_SDICMDSTAT_RSPFIN;
-	}
-
-	/* Command with long response. */
-	if (cmd->resp_type & MMC_RSP_136)
-		sdiccon |= S3C2410_SDICMDCON_LONGRSP;
-
-	/* Start the command. */
-	writel(sdiccon, &sdi_regs->sdiccon);
-
-	/* Wait for the command to complete or for response. */
-	for (timeout = 100000; timeout; timeout--) {
-		sdicsta = readl(&sdi_regs->sdicsta);
-		if (sdicsta & sdicsta_wait_bit)
-			break;
-
-		if (sdicsta & S3C2410_SDICMDSTAT_CMDTIMEOUT)
-			timeout = 1;
-	}
-
-	/* Clean the status bits. */
-	setbits_le32(&sdi_regs->sdicsta, 0xf << 9);
-
-	if (!timeout) {
-		puts("S3C SDI: Command timed out!\n");
-		ret = -ETIMEDOUT;
-		goto error;
-	}
-
-	/* Read out the response. */
-	if (cmd->resp_type & MMC_RSP_136) {
-		cmd->response[0] = readl(&sdi_regs->sdirsp0);
-		cmd->response[1] = readl(&sdi_regs->sdirsp1);
-		cmd->response[2] = readl(&sdi_regs->sdirsp2);
-		cmd->response[3] = readl(&sdi_regs->sdirsp3);
-	} else {
-		cmd->response[0] = readl(&sdi_regs->sdirsp0);
-	}
-
-	/* If there are no data, we're done. */
-	if (!data)
-		return 0;
-
-	xfer_len = data->blocksize * data->blocks;
-
-	while (xfer_len > 0) {
-		sdidsta = readl(&sdi_regs->sdidsta);
-		sdifsta = readl(&sdi_regs->sdifsta);
-
-		if (sdidsta & sdidsta_err_mask) {
-			printf("S3C SDI: Data error (sdta=0x%08x)\n", sdidsta);
-			ret = -EIO;
-			goto error;
-		}
-
-		if (data->flags & MMC_DATA_READ) {
-			if ((sdifsta & S3C2410_SDIFSTA_COUNTMASK) < 4)
-				continue;
-			sdidat = readl(&sdi_regs->sdidat);
-			put_unaligned_le32(sdidat, data->dest + data_offset);
-		} else {	/* Write */
-			/* TX FIFO half full. */
-			if (!(sdifsta & S3C2410_SDIFSTA_TFHALF))
-				continue;
-
-			/* TX FIFO is below 32b full, write. */
-			sdidat = get_unaligned_le32(data->src + data_offset);
-			writel(sdidat, &sdi_regs->sdidat);
-		}
-		data_offset += 4;
-		xfer_len -= 4;
-	}
-
-	/* Wait for the command to complete or for response. */
-	for (timeout = 100000; timeout; timeout--) {
-		sdidsta = readl(&sdi_regs->sdidsta);
-		if (sdidsta & S3C2410_SDIDSTA_XFERFINISH)
-			break;
-
-		if (sdidsta & S3C2410_SDIDSTA_DATATIMEOUT)
-			timeout = 1;
-	}
-
-	/* Clear status bits. */
-	writel(0x6f8, &sdi_regs->sdidsta);
-
-	if (!timeout) {
-		puts("S3C SDI: Command timed out!\n");
-		ret = -ETIMEDOUT;
-		goto error;
-	}
-
-	writel(0, &sdi_regs->sdidcon);
-
-	return 0;
-error:
-	return ret;
-}
-
-static int s3cmmc_set_ios(struct mmc *mmc)
-{
-	struct s3c24x0_sdi *sdi_regs = s3c24x0_get_base_sdi();
-	uint32_t divider = 0;
-
-	wide_bus = (mmc->bus_width == 4);
-
-	if (!mmc->clock)
-		return 0;
-
-	divider = DIV_ROUND_UP(get_PCLK(), mmc->clock);
-	if (divider)
-		divider--;
-
-	writel(divider, &sdi_regs->sdipre);
-	mdelay(125);
-
-	return 0;
-}
-
-static int s3cmmc_init(struct mmc *mmc)
-{
-	struct s3c24x0_clock_power *clk_power = s3c24x0_get_base_clock_power();
-	struct s3c24x0_sdi *sdi_regs = s3c24x0_get_base_sdi();
-
-	/* Start the clock. */
-	setbits_le32(&clk_power->clkcon, 1 << 9);
-
-#if defined(CONFIG_S3C2440)
-	writel(S3C2440_SDICON_SDRESET, &sdi_regs->sdicon);
-	mdelay(10);
-	writel(0x7fffff, &sdi_regs->sdidtimer);
-#else
-	writel(0xffff, &sdi_regs->sdidtimer);
-#endif
-	writel(MMC_MAX_BLOCK_LEN, &sdi_regs->sdibsize);
-	writel(0x0, &sdi_regs->sdiimsk);
-
-	writel(S3C2410_SDICON_FIFORESET | S3C2410_SDICON_CLOCKTYPE,
-	       &sdi_regs->sdicon);
-
-	mdelay(125);
-
-	return 0;
-}
-
-struct s3cmmc_priv {
-	struct mmc_config	cfg;
-	int (*getcd)(struct mmc *);
-	int (*getwp)(struct mmc *);
-};
-
-static int s3cmmc_getcd(struct mmc *mmc)
-{
-	struct s3cmmc_priv *priv = mmc->priv;
-	if (priv->getcd)
-		return priv->getcd(mmc);
-	else
-		return 0;
-}
-
-static int s3cmmc_getwp(struct mmc *mmc)
-{
-	struct s3cmmc_priv *priv = mmc->priv;
-	if (priv->getwp)
-		return priv->getwp(mmc);
-	else
-		return 0;
-}
-
-static const struct mmc_ops s3cmmc_ops = {
-	.send_cmd	= s3cmmc_send_cmd,
-	.set_ios	= s3cmmc_set_ios,
-	.init		= s3cmmc_init,
-	.getcd		= s3cmmc_getcd,
-	.getwp		= s3cmmc_getwp,
-};
-
-int s3cmmc_initialize(bd_t *bis, int (*getcd)(struct mmc *),
-		      int (*getwp)(struct mmc *))
-{
-	struct s3cmmc_priv	*priv;
-	struct mmc		*mmc;
-	struct mmc_config	*cfg;
-
-	priv = calloc(1, sizeof(*priv));
-	if (!priv)
-		return -ENOMEM;
-	cfg = &priv->cfg;
-
-	cfg->name = "S3C MMC";
-	cfg->ops = &s3cmmc_ops;
-	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
-	cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_HS;
-	cfg->f_min = 400000;
-	cfg->f_max = get_PCLK() / 2;
-	cfg->b_max = 0x80;
-
-#if defined(CONFIG_S3C2410)
-	/*
-	 * S3C2410 has some bug that prevents reliable
-	 * operation at higher speed
-	 */
-	cfg->f_max /= 2;
-#endif
-
-	mmc = mmc_create(cfg, priv);
-	if (!mmc) {
-		free(priv);
-		return -ENOMEM;
-	}
-
-	return 0;
-}