X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmmc%2Fs5p_mmc.c;h=7786ecf2be87e02ed5727082326f8b15d5632ddf;hb=4d28db8a1e8b90e1e3ffd95d7f949b849e33fa2f;hp=669b1d0d2f91c2755689c9ce1d857761dc802c6a;hpb=201532a69cf7e7a84bff354fdab45947425d22b4;p=u-boot

diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c
index 669b1d0d2f..7786ecf2be 100644
--- a/drivers/mmc/s5p_mmc.c
+++ b/drivers/mmc/s5p_mmc.c
@@ -22,12 +22,7 @@
 #include <mmc.h>
 #include <asm/io.h>
 #include <asm/arch/mmc.h>
-
-#ifdef DEBUG_S5P_HSMMC
-#define dbg(x...)       printf(x)
-#else
-#define dbg(x...)       do { } while (0)
-#endif
+#include <asm/arch/clk.h>
 
 /* support 4 mmc hosts */
 struct mmc mmc_dev[4];
@@ -36,18 +31,14 @@ struct mmc_host mmc_host[4];
 static inline struct s5p_mmc *s5p_get_base_mmc(int dev_index)
 {
 	unsigned long offset = dev_index * sizeof(struct s5p_mmc);
-
-	if (cpu_is_s5pc100())
-		return (struct s5p_mmc *)(S5PC100_MMC_BASE + offset);
-	else
-		return (struct s5p_mmc *)(S5PC110_MMC_BASE + offset);
+	return (struct s5p_mmc *)(samsung_get_base_mmc() + offset);
 }
 
 static void mmc_prepare_data(struct mmc_host *host, struct mmc_data *data)
 {
 	unsigned char ctrl;
 
-	dbg("data->dest: %08x\n", (u32)data->dest);
+	debug("data->dest: %08x\n", (u32)data->dest);
 	writel((u32)data->dest, &host->reg->sysad);
 	/*
 	 * DMASEL[4:3]
@@ -61,7 +52,7 @@ static void mmc_prepare_data(struct mmc_host *host, struct mmc_data *data)
 	writeb(ctrl, &host->reg->hostctl);
 
 	/* We do not handle DMA boundaries, so set it to max (512 KiB) */
-	writew((7 << 12) | (512 << 0), &host->reg->blksize);
+	writew((7 << 12) | (data->blocksize & 0xFFF), &host->reg->blksize);
 	writew(data->blocks, &host->reg->blkcnt);
 }
 
@@ -128,7 +119,7 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 	if (data)
 		mmc_prepare_data(host, data);
 
-	dbg("cmd->arg: %08x\n", cmd->cmdarg);
+	debug("cmd->arg: %08x\n", cmd->cmdarg);
 	writel(cmd->cmdarg, &host->reg->argument);
 
 	if (data)
@@ -165,7 +156,7 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 	if (data)
 		flags |= (1 << 5);
 
-	dbg("cmd: %d\n", cmd->cmdidx);
+	debug("cmd: %d\n", cmd->cmdidx);
 
 	writew((cmd->cmdidx << 8) | flags, &host->reg->cmdreg);
 
@@ -186,11 +177,11 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 
 	if (mask & (1 << 16)) {
 		/* Timeout Error */
-		dbg("timeout: %08x cmd %d\n", mask, cmd->cmdidx);
+		debug("timeout: %08x cmd %d\n", mask, cmd->cmdidx);
 		return TIMEOUT;
 	} else if (mask & (1 << 15)) {
 		/* Error Interrupt */
-		dbg("error: %08x cmd %d\n", mask, cmd->cmdidx);
+		debug("error: %08x cmd %d\n", mask, cmd->cmdidx);
 		return -1;
 	}
 
@@ -206,7 +197,7 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 					cmd->response[i] |=
 						readb(offset - 1);
 				}
-				dbg("cmd->resp[%d]: %08x\n",
+				debug("cmd->resp[%d]: %08x\n",
 						i, cmd->response[i]);
 			}
 		} else if (cmd->resp_type & MMC_RSP_BUSY) {
@@ -223,10 +214,10 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 			}
 
 			cmd->response[0] = readl(&host->reg->rspreg0);
-			dbg("cmd->resp[0]: %08x\n", cmd->response[0]);
+			debug("cmd->resp[0]: %08x\n", cmd->response[0]);
 		} else {
 			cmd->response[0] = readl(&host->reg->rspreg0);
-			dbg("cmd->resp[0]: %08x\n", cmd->response[0]);
+			debug("cmd->resp[0]: %08x\n", cmd->response[0]);
 		}
 	}
 
@@ -241,12 +232,18 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 						__func__, mask);
 				return -1;
 			} else if (mask & (1 << 3)) {
-				/* DMA Interrupt */
-				dbg("DMA end\n");
-				break;
+				/*
+				 * DMA Interrupt, restart the transfer where
+				 * it was interrupted.
+				 */
+				unsigned int address = readl(&host->reg->sysad);
+
+				debug("DMA end\n");
+				writel((1 << 3), &host->reg->norintsts);
+				writel(address, &host->reg->sysad);
 			} else if (mask & (1 << 1)) {
 				/* Transfer Complete */
-				dbg("r/w is done\n");
+				debug("r/w is done\n");
 				break;
 			}
 		}
@@ -288,7 +285,7 @@ static void mmc_change_clock(struct mmc_host *host, uint clock)
 		div = 2;
 	else
 		div = 1;
-	dbg("div: %d\n", div);
+	debug("div: %d\n", div);
 
 	div >>= 1;
 	/*
@@ -301,6 +298,8 @@ static void mmc_change_clock(struct mmc_host *host, uint clock)
 	clk = (div << 8) | (1 << 0);
 	writew(clk, &host->reg->clkcon);
 
+	set_mmc_clk(host->dev_index, div);
+
 	/* Wait max 10 ms */
 	timeout = 10;
 	while (!(readw(&host->reg->clkcon) & (1 << 1))) {
@@ -325,7 +324,7 @@ static void mmc_set_ios(struct mmc *mmc)
 	unsigned char ctrl;
 	unsigned long val;
 
-	dbg("set_ios: bus_width: %x, clock: %d\n", mmc->bus_width, mmc->clock);
+	debug("bus_width: %x, clock: %d\n", mmc->bus_width, mmc->clock);
 
 	/*
 	 * SELCLKPADDS[17:16]
@@ -362,11 +361,16 @@ static void mmc_set_ios(struct mmc *mmc)
 	ctrl = readb(&host->reg->hostctl);
 
 	/*
+	 * WIDE8[5]
+	 * 0 = Depend on WIDE4
+	 * 1 = 8-bit mode
 	 * WIDE4[1]
 	 * 1 = 4-bit mode
 	 * 0 = 1-bit mode
 	 */
-	if (mmc->bus_width == 4)
+	if (mmc->bus_width == 8)
+		ctrl |= (1 << 5);
+	else if (mmc->bus_width == 4)
 		ctrl |= (1 << 1);
 	else
 		ctrl &= ~(1 << 1);
@@ -427,12 +431,13 @@ static int mmc_core_init(struct mmc *mmc)
 	 * NORMAL Interrupt Status Enable Register init
 	 * [5] ENSTABUFRDRDY : Buffer Read Ready Status Enable
 	 * [4] ENSTABUFWTRDY : Buffer write Ready Status Enable
+	 * [3] ENSTADMAINT : DMA Interrupt Status Enable
 	 * [1] ENSTASTANSCMPLT : Transfre Complete Status Enable
 	 * [0] ENSTACMDCMPLT : Command Complete Status Enable
-	*/
+	 */
 	mask = readl(&host->reg->norintstsen);
 	mask &= ~(0xffff);
-	mask |= (1 << 5) | (1 << 4) | (1 << 1) | (1 << 0);
+	mask |= (1 << 5) | (1 << 4) | (1 << 3) | (1 << 1) | (1 << 0);
 	writel(mask, &host->reg->norintstsen);
 
 	/*
@@ -447,7 +452,7 @@ static int mmc_core_init(struct mmc *mmc)
 	return 0;
 }
 
-static int s5p_mmc_initialize(int dev_index)
+static int s5p_mmc_initialize(int dev_index, int bus_width)
 {
 	struct mmc *mmc;
 
@@ -460,19 +465,25 @@ static int s5p_mmc_initialize(int dev_index)
 	mmc->init = mmc_core_init;
 
 	mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
-	mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS;
+	if (bus_width == 8)
+		mmc->host_caps = MMC_MODE_8BIT;
+	else
+		mmc->host_caps = MMC_MODE_4BIT;
+	mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS | MMC_MODE_HC;
 
 	mmc->f_min = 400000;
 	mmc->f_max = 52000000;
 
+	mmc_host[dev_index].dev_index = dev_index;
 	mmc_host[dev_index].clock = 0;
 	mmc_host[dev_index].reg = s5p_get_base_mmc(dev_index);
+	mmc->b_max = 0;
 	mmc_register(mmc);
 
 	return 0;
 }
 
-int s5p_mmc_init(int dev_index)
+int s5p_mmc_init(int dev_index, int bus_width)
 {
-	return s5p_mmc_initialize(dev_index);
+	return s5p_mmc_initialize(dev_index, bus_width);
 }