X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmmc%2Fmmc.c;h=e6a296a5762c939736d47aed83529f113c983635;hb=f866a46d6ee86335f60c542e294ec2c01d689eba;hp=2590f1bcce5e1fa223732e15c33cdd980ff0e725;hpb=ec7023db8dc95966919589541f1ca09355a3f7a5;p=u-boot

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 2590f1bcce..e6a296a576 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -301,10 +301,12 @@ mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
 		return 0;
 	}
 
-	if (blkcnt > 1)
-		cmd.cmdidx = MMC_CMD_WRITE_MULTIPLE_BLOCK;
-	else
+	if (blkcnt == 0)
+		return 0;
+	else if (blkcnt == 1)
 		cmd.cmdidx = MMC_CMD_WRITE_SINGLE_BLOCK;
+	else
+		cmd.cmdidx = MMC_CMD_WRITE_MULTIPLE_BLOCK;
 
 	if (mmc->high_capacity)
 		cmd.cmdarg = start;
@@ -524,48 +526,70 @@ static int sd_send_op_cond(struct mmc *mmc)
 	return 0;
 }
 
-static int mmc_send_op_cond(struct mmc *mmc)
+/* We pass in the cmd since otherwise the init seems to fail */
+static int mmc_send_op_cond_iter(struct mmc *mmc, struct mmc_cmd *cmd,
+		int use_arg)
 {
-	int timeout = 10000;
-	struct mmc_cmd cmd;
 	int err;
 
+	cmd->cmdidx = MMC_CMD_SEND_OP_COND;
+	cmd->resp_type = MMC_RSP_R3;
+	cmd->cmdarg = 0;
+	if (use_arg && !mmc_host_is_spi(mmc)) {
+		cmd->cmdarg =
+			(mmc->voltages &
+			(mmc->op_cond_response & OCR_VOLTAGE_MASK)) |
+			(mmc->op_cond_response & OCR_ACCESS_MODE);
+
+		if (mmc->host_caps & MMC_MODE_HC)
+			cmd->cmdarg |= OCR_HCS;
+	}
+	err = mmc_send_cmd(mmc, cmd, NULL);
+	if (err)
+		return err;
+	mmc->op_cond_response = cmd->response[0];
+	return 0;
+}
+
+int mmc_send_op_cond(struct mmc *mmc)
+{
+	struct mmc_cmd cmd;
+	int err, i;
+
 	/* Some cards seem to need this */
 	mmc_go_idle(mmc);
 
  	/* Asking to the card its capabilities */
- 	cmd.cmdidx = MMC_CMD_SEND_OP_COND;
- 	cmd.resp_type = MMC_RSP_R3;
- 	cmd.cmdarg = 0;
-
- 	err = mmc_send_cmd(mmc, &cmd, NULL);
+	mmc->op_cond_pending = 1;
+	for (i = 0; i < 2; i++) {
+		err = mmc_send_op_cond_iter(mmc, &cmd, i != 0);
+		if (err)
+			return err;
 
- 	if (err)
- 		return err;
+		/* exit if not busy (flag seems to be inverted) */
+		if (mmc->op_cond_response & OCR_BUSY)
+			return 0;
+	}
+	return IN_PROGRESS;
+}
 
- 	udelay(1000);
+int mmc_complete_op_cond(struct mmc *mmc)
+{
+	struct mmc_cmd cmd;
+	int timeout = 1000;
+	uint start;
+	int err;
 
+	mmc->op_cond_pending = 0;
+	start = get_timer(0);
 	do {
-		cmd.cmdidx = MMC_CMD_SEND_OP_COND;
-		cmd.resp_type = MMC_RSP_R3;
-		cmd.cmdarg = (mmc_host_is_spi(mmc) ? 0 :
-				(mmc->voltages &
-				(cmd.response[0] & OCR_VOLTAGE_MASK)) |
-				(cmd.response[0] & OCR_ACCESS_MODE));
-
-		if (mmc->host_caps & MMC_MODE_HC)
-			cmd.cmdarg |= OCR_HCS;
-
-		err = mmc_send_cmd(mmc, &cmd, NULL);
-
+		err = mmc_send_op_cond_iter(mmc, &cmd, 1);
 		if (err)
 			return err;
-
-		udelay(1000);
-	} while (!(cmd.response[0] & OCR_BUSY) && timeout--);
-
-	if (timeout <= 0)
-		return UNUSABLE_ERR;
+		if (get_timer(start) > timeout)
+			return UNUSABLE_ERR;
+		udelay(100);
+	} while (!(mmc->op_cond_response & OCR_BUSY));
 
 	if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
 		cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
@@ -678,16 +702,49 @@ static int mmc_change_freq(struct mmc *mmc)
 	return 0;
 }
 
+static int mmc_set_capacity(struct mmc *mmc, int part_num)
+{
+	switch (part_num) {
+	case 0:
+		mmc->capacity = mmc->capacity_user;
+		break;
+	case 1:
+	case 2:
+		mmc->capacity = mmc->capacity_boot;
+		break;
+	case 3:
+		mmc->capacity = mmc->capacity_rpmb;
+		break;
+	case 4:
+	case 5:
+	case 6:
+	case 7:
+		mmc->capacity = mmc->capacity_gp[part_num - 4];
+		break;
+	default:
+		return -1;
+	}
+
+	mmc->block_dev.lba = lldiv(mmc->capacity, mmc->read_bl_len);
+
+	return 0;
+}
+
 int mmc_switch_part(int dev_num, unsigned int part_num)
 {
 	struct mmc *mmc = find_mmc_device(dev_num);
+	int ret;
 
 	if (!mmc)
 		return -1;
 
-	return mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
-			  (mmc->part_config & ~PART_ACCESS_MASK)
-			  | (part_num & PART_ACCESS_MASK));
+	ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
+			 (mmc->part_config & ~PART_ACCESS_MASK)
+			 | (part_num & PART_ACCESS_MASK));
+	if (ret)
+		return ret;
+
+	return mmc_set_capacity(mmc, part_num);
 }
 
 int mmc_getcd(struct mmc *mmc)
@@ -895,7 +952,7 @@ static void mmc_set_bus_width(struct mmc *mmc, uint width)
 
 static int mmc_startup(struct mmc *mmc)
 {
-	int err;
+	int err, i;
 	uint mult, freq;
 	u64 cmult, csize, capacity;
 	struct mmc_cmd cmd;
@@ -1013,8 +1070,12 @@ static int mmc_startup(struct mmc *mmc)
 		cmult = (mmc->csd[2] & 0x00038000) >> 15;
 	}
 
-	mmc->capacity = (csize + 1) << (cmult + 2);
-	mmc->capacity *= mmc->read_bl_len;
+	mmc->capacity_user = (csize + 1) << (cmult + 2);
+	mmc->capacity_user *= mmc->read_bl_len;
+	mmc->capacity_boot = 0;
+	mmc->capacity_rpmb = 0;
+	for (i = 0; i < 4; i++)
+		mmc->capacity_gp[i] = 0;
 
 	if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN)
 		mmc->read_bl_len = MMC_MAX_BLOCK_LEN;
@@ -1053,7 +1114,7 @@ static int mmc_startup(struct mmc *mmc)
 					| ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
 			capacity *= MMC_MAX_BLOCK_LEN;
 			if ((capacity >> 20) > 2 * 1024)
-				mmc->capacity = capacity;
+				mmc->capacity_user = capacity;
 		}
 
 		switch (ext_csd[EXT_CSD_REV]) {
@@ -1095,8 +1156,25 @@ static int mmc_startup(struct mmc *mmc)
 		if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) ||
 		    ext_csd[EXT_CSD_BOOT_MULT])
 			mmc->part_config = ext_csd[EXT_CSD_PART_CONF];
+
+		mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17;
+
+		mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17;
+
+		for (i = 0; i < 4; i++) {
+			int idx = EXT_CSD_GP_SIZE_MULT + i * 3;
+			mmc->capacity_gp[i] = (ext_csd[idx + 2] << 16) +
+				(ext_csd[idx + 1] << 8) + ext_csd[idx];
+			mmc->capacity_gp[i] *=
+				ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+			mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+		}
 	}
 
+	err = mmc_set_capacity(mmc, mmc->part_num);
+	if (err)
+		return err;
+
 	if (IS_SD(mmc))
 		err = sd_change_freq(mmc);
 	else
@@ -1274,7 +1352,7 @@ block_dev_desc_t *mmc_get_dev(int dev)
 }
 #endif
 
-int mmc_init(struct mmc *mmc)
+int mmc_start_init(struct mmc *mmc)
 {
 	int err;
 
@@ -1314,17 +1392,48 @@ int mmc_init(struct mmc *mmc)
 	if (err == TIMEOUT) {
 		err = mmc_send_op_cond(mmc);
 
-		if (err) {
+		if (err && err != IN_PROGRESS) {
 			printf("Card did not respond to voltage select!\n");
 			return UNUSABLE_ERR;
 		}
 	}
 
-	err = mmc_startup(mmc);
+	if (err == IN_PROGRESS)
+		mmc->init_in_progress = 1;
+
+	return err;
+}
+
+static int mmc_complete_init(struct mmc *mmc)
+{
+	int err = 0;
+
+	if (mmc->op_cond_pending)
+		err = mmc_complete_op_cond(mmc);
+
+	if (!err)
+		err = mmc_startup(mmc);
 	if (err)
 		mmc->has_init = 0;
 	else
 		mmc->has_init = 1;
+	mmc->init_in_progress = 0;
+	return err;
+}
+
+int mmc_init(struct mmc *mmc)
+{
+	int err = IN_PROGRESS;
+	unsigned start = get_timer(0);
+
+	if (mmc->has_init)
+		return 0;
+	if (!mmc->init_in_progress)
+		err = mmc_start_init(mmc);
+
+	if (!err || err == IN_PROGRESS)
+		err = mmc_complete_init(mmc);
+	debug("%s: %d, time %lu\n", __func__, err, get_timer(start));
 	return err;
 }
 
@@ -1362,6 +1471,25 @@ int get_mmc_num(void)
 	return cur_dev_num;
 }
 
+void mmc_set_preinit(struct mmc *mmc, int preinit)
+{
+	mmc->preinit = preinit;
+}
+
+static void do_preinit(void)
+{
+	struct mmc *m;
+	struct list_head *entry;
+
+	list_for_each(entry, &mmc_devices) {
+		m = list_entry(entry, struct mmc, link);
+
+		if (m->preinit)
+			mmc_start_init(m);
+	}
+}
+
+
 int mmc_initialize(bd_t *bis)
 {
 	INIT_LIST_HEAD (&mmc_devices);
@@ -1372,5 +1500,6 @@ int mmc_initialize(bd_t *bis)
 
 	print_mmc_devices(',');
 
+	do_preinit();
 	return 0;
 }