Merge tag 'mmc-2021-6-22' of https://source.denx.de/u-boot/custodians/u-boot-mmc

- Revert fsl_esdhc_imx using VENDORSPEC_FRC_SDCLK_ON
- Fix data read for dw_mmc
- Increase minimum bus freq for mtk-sd
- Minor cleanup

10 files changed, 44 insertions, 58 deletions

diff --git a/cmd/mmc.c b/cmd/mmc.c
index a10f137..b942576 100644
--- a/cmd/mmc.c
+++ b/cmd/mmc.c
@@ -808,7 +808,7 @@ static int do_mmc_boot_resize(struct cmd_tbl *cmdtp, int flag,
 	return CMD_RET_SUCCESS;
 }
 
-static int mmc_partconf_print(struct mmc *mmc)
+static int mmc_partconf_print(struct mmc *mmc, const char *varname)
 {
 	u8 ack, access, part;
 
@@ -821,6 +821,9 @@ static int mmc_partconf_print(struct mmc *mmc)
 	ack = EXT_CSD_EXTRACT_BOOT_ACK(mmc->part_config);
 	part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config);
 
+	if(varname)
+		env_set_hex(varname, part);
+
 	printf("EXT_CSD[179], PARTITION_CONFIG:\n"
 		"BOOT_ACK: 0x%x\n"
 		"BOOT_PARTITION_ENABLE: 0x%x\n"
@@ -836,7 +839,7 @@ static int do_mmc_partconf(struct cmd_tbl *cmdtp, int flag,
 	struct mmc *mmc;
 	u8 ack, part_num, access;
 
-	if (argc != 2 && argc != 5)
+	if (argc != 2 && argc != 3 && argc != 5)
 		return CMD_RET_USAGE;
 
 	dev = simple_strtoul(argv[1], NULL, 10);
@@ -850,8 +853,8 @@ static int do_mmc_partconf(struct cmd_tbl *cmdtp, int flag,
 		return CMD_RET_FAILURE;
 	}
 
-	if (argc == 2)
-		return mmc_partconf_print(mmc);
+	if (argc == 2 || argc == 3)
+		return mmc_partconf_print(mmc, argc == 3 ? argv[2] : NULL);
 
 	ack = simple_strtoul(argv[2], NULL, 10);
 	part_num = simple_strtoul(argv[3], NULL, 10);
@@ -1061,8 +1064,9 @@ U_BOOT_CMD(
 	" - Set the BOOT_BUS_WIDTH field of the specified device\n"
 	"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
 	" - Change sizes of boot and RPMB partitions of specified device\n"
-	"mmc partconf <dev> [boot_ack boot_partition partition_access]\n"
+	"mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]\n"
 	" - Show or change the bits of the PARTITION_CONFIG field of the specified device\n"
+	"   If showing the bits, optionally store the boot_partition field into varname\n"
 	"mmc rst-function <dev> <value>\n"
 	" - Change the RST_n_FUNCTION field of the specified device\n"
 	"   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
diff --git a/doc/usage/mmc.rst b/doc/usage/mmc.rst
index 458c7642..f20efe3 100644
--- a/doc/usage/mmc.rst
+++ b/doc/usage/mmc.rst
@@ -19,7 +19,7 @@ Synopsis
     mmc wp
     mmc bootbus <dev> <boot_bus_width> <reset_boot_bus_width> <boot_mode>
     mmc bootpart-resize <dev> <dev part size MB> <RPMB part size MB>
-    mmc partconf <dev> [boot_ack boot_partition partition_access]
+    mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]
     mmc rst-function <dev> <value>
 
 Description
@@ -92,6 +92,8 @@ The 'mmc bootbus' command sets the BOOT_BUS_WIDTH field. (*Refer to eMMC specifi
 
 The 'mmc partconf' command shows or changes PARTITION_CONFIG field.
 
+    varname
+        When showing the PARTITION_CONFIG, an optional environment variable to store the current boot_partition value into.
     boot_ack
         boot acknowledge value
     boot_partition
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index 7c8a312..a949dad 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -166,7 +166,9 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
 		if (host->fifo_mode && size) {
 			len = 0;
 			if (data->flags == MMC_DATA_READ &&
-			    (mask & DWMCI_INTMSK_RXDR)) {
+			    (mask & (DWMCI_INTMSK_RXDR | DWMCI_INTMSK_DTO))) {
+				dwmci_writel(host, DWMCI_RINTSTS,
+					     DWMCI_INTMSK_RXDR | DWMCI_INTMSK_DTO);
 				while (size) {
 					ret = dwmci_fifo_ready(host,
 							DWMCI_FIFO_EMPTY,
@@ -182,8 +184,6 @@ static int dwmci_data_transfer(struct dwmci_host *host, struct mmc_data *data)
 						dwmci_readl(host, DWMCI_DATA);
 					size = size > len ? (size - len) : 0;
 				}
-				dwmci_writel(host, DWMCI_RINTSTS,
-					     DWMCI_INTMSK_RXDR);
 			} else if (data->flags == MMC_DATA_WRITE &&
 				   (mask & DWMCI_INTMSK_TXDR)) {
 				while (size) {
diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
index 566ce046..465d935 100644
--- a/drivers/mmc/fsl_esdhc_imx.c
+++ b/drivers/mmc/fsl_esdhc_imx.c
@@ -653,10 +653,7 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
 	clk = (pre_div << 8) | (div << 4);
 
 #ifdef CONFIG_FSL_USDHC
-	esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
-	ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp, tmp & PRSSTAT_SDOFF, 100);
-	if (ret)
-		pr_warn("fsl_esdhc_imx: Internal clock never gate off.\n");
+	esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_CKEN);
 #else
 	esdhc_clrbits32(&regs->sysctl, SYSCTL_CKEN);
 #endif
@@ -668,7 +665,7 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
 		pr_warn("fsl_esdhc_imx: Internal clock never stabilised.\n");
 
 #ifdef CONFIG_FSL_USDHC
-	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
+	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN | VENDORSPEC_CKEN);
 #else
 	esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
 #endif
@@ -723,14 +720,8 @@ static void esdhc_set_strobe_dll(struct mmc *mmc)
 	struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
 	struct fsl_esdhc *regs = priv->esdhc_regs;
 	u32 val;
-	u32 tmp;
-	int ret;
 
 	if (priv->clock > ESDHC_STROBE_DLL_CLK_FREQ) {
-		esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
-		ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp, tmp & PRSSTAT_SDOFF, 100);
-		if (ret)
-			pr_warn("fsl_esdhc_imx: Internal clock never gate off.\n");
 		esdhc_write32(&regs->strobe_dllctrl, ESDHC_STROBE_DLL_CTRL_RESET);
 
 		/*
@@ -748,7 +739,6 @@ static void esdhc_set_strobe_dll(struct mmc *mmc)
 			pr_warn("HS400 strobe DLL status REF not lock!\n");
 		if (!(val & ESDHC_STROBE_DLL_STS_SLV_LOCK))
 			pr_warn("HS400 strobe DLL status SLV not lock!\n");
-		esdhc_setbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
 	}
 }
 
@@ -865,7 +855,7 @@ static void esdhc_stop_tuning(struct mmc *mmc)
 	cmd.cmdarg = 0;
 	cmd.resp_type = MMC_RSP_R1b;
 
-	dm_mmc_send_cmd(mmc->dev, &cmd, NULL);
+	mmc_send_cmd(mmc, &cmd, NULL);
 }
 
 static int fsl_esdhc_execute_tuning(struct udevice *dev, uint32_t opcode)
@@ -980,18 +970,14 @@ static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
 #ifdef MMC_SUPPORTS_TUNING
 	if (mmc->clk_disable) {
 #ifdef CONFIG_FSL_USDHC
-		u32 tmp;
-
-		esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
-		ret = readx_poll_timeout(esdhc_read32, &regs->prsstat, tmp, tmp & PRSSTAT_SDOFF, 100);
-		if (ret)
-			pr_warn("fsl_esdhc_imx: Internal clock never gate off.\n");
+		esdhc_clrbits32(&regs->vendorspec, VENDORSPEC_CKEN);
 #else
 		esdhc_clrbits32(&regs->sysctl, SYSCTL_CKEN);
 #endif
 	} else {
 #ifdef CONFIG_FSL_USDHC
-		esdhc_setbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
+		esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN |
+				VENDORSPEC_CKEN);
 #else
 		esdhc_setbits32(&regs->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
 #endif
@@ -1067,7 +1053,7 @@ static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
 #ifndef CONFIG_FSL_USDHC
 	esdhc_setbits32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
 #else
-	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
+	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_HCKEN | VENDORSPEC_IPGEN);
 #endif
 
 	/* Set the initial clock speed */
@@ -1205,7 +1191,8 @@ static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
 	esdhc_write32(&regs->autoc12err, 0);
 	esdhc_write32(&regs->clktunectrlstatus, 0);
 #else
-	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_FRC_SDCLK_ON);
+	esdhc_setbits32(&regs->vendorspec, VENDORSPEC_PEREN |
+			VENDORSPEC_HCKEN | VENDORSPEC_IPGEN | VENDORSPEC_CKEN);
 #endif
 
 	if (priv->vs18_enable)
diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c
index d36aae3..579d7a1 100644
--- a/drivers/mmc/mmc-uclass.c
+++ b/drivers/mmc/mmc-uclass.c
@@ -15,7 +15,7 @@
 #include <linux/compat.h>
 #include "mmc_private.h"
 
-int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt)
+static int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 	struct mmc *mmc = mmc_get_mmc_dev(dev);
@@ -31,7 +31,7 @@ int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt)
 	return dm_mmc_get_b_max(mmc->dev, dst, blkcnt);
 }
 
-int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
+static int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
 		    struct mmc_data *data)
 {
 	struct mmc *mmc = mmc_get_mmc_dev(dev);
@@ -53,7 +53,7 @@ int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 	return dm_mmc_send_cmd(mmc->dev, cmd, data);
 }
 
-int dm_mmc_set_ios(struct udevice *dev)
+static int dm_mmc_set_ios(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -67,7 +67,7 @@ int mmc_set_ios(struct mmc *mmc)
 	return dm_mmc_set_ios(mmc->dev);
 }
 
-int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
+static int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -81,7 +81,7 @@ int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us)
 	return dm_mmc_wait_dat0(mmc->dev, state, timeout_us);
 }
 
-int dm_mmc_get_wp(struct udevice *dev)
+static int dm_mmc_get_wp(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -95,7 +95,7 @@ int mmc_getwp(struct mmc *mmc)
 	return dm_mmc_get_wp(mmc->dev);
 }
 
-int dm_mmc_get_cd(struct udevice *dev)
+static int dm_mmc_get_cd(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -110,7 +110,7 @@ int mmc_getcd(struct mmc *mmc)
 }
 
 #ifdef MMC_SUPPORTS_TUNING
-int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
+static int dm_mmc_execute_tuning(struct udevice *dev, uint opcode)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -126,7 +126,7 @@ int mmc_execute_tuning(struct mmc *mmc, uint opcode)
 #endif
 
 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
-int dm_mmc_set_enhanced_strobe(struct udevice *dev)
+static int dm_mmc_set_enhanced_strobe(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -142,7 +142,7 @@ int mmc_set_enhanced_strobe(struct mmc *mmc)
 }
 #endif
 
-int dm_mmc_hs400_prepare_ddr(struct udevice *dev)
+static int dm_mmc_hs400_prepare_ddr(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -157,7 +157,7 @@ int mmc_hs400_prepare_ddr(struct mmc *mmc)
 	return dm_mmc_hs400_prepare_ddr(mmc->dev);
 }
 
-int dm_mmc_host_power_cycle(struct udevice *dev)
+static int dm_mmc_host_power_cycle(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -171,7 +171,7 @@ int mmc_host_power_cycle(struct mmc *mmc)
 	return dm_mmc_host_power_cycle(mmc->dev);
 }
 
-int dm_mmc_deferred_probe(struct udevice *dev)
+static int dm_mmc_deferred_probe(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
@@ -186,7 +186,7 @@ int mmc_deferred_probe(struct mmc *mmc)
 	return dm_mmc_deferred_probe(mmc->dev);
 }
 
-int dm_mmc_reinit(struct udevice *dev)
+static int dm_mmc_reinit(struct udevice *dev)
 {
 	struct dm_mmc_ops *ops = mmc_get_ops(dev);
 
diff --git a/drivers/mmc/mmc_private.h b/drivers/mmc/mmc_private.h
index a0900e8..a6cd250 100644
--- a/drivers/mmc/mmc_private.h
+++ b/drivers/mmc/mmc_private.h
@@ -12,7 +12,6 @@
 
 #include <mmc.h>
 
-int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data);
 int mmc_send_status(struct mmc *mmc, unsigned int *status);
 int mmc_poll_for_busy(struct mmc *mmc, int timeout);
 
diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
index 48a764b..8599f09 100644
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -232,6 +232,8 @@
 
 #define SCLK_CYCLES_SHIFT		20
 
+#define MIN_BUS_CLK			200000
+
 #define CMD_INTS_MASK	\
 	(MSDC_INT_CMDRDY | MSDC_INT_RSPCRCERR | MSDC_INT_CMDTMO)
 
@@ -1639,6 +1641,9 @@ static int msdc_drv_probe(struct udevice *dev)
 	else
 		cfg->f_min = host->src_clk_freq / (4 * 4095);
 
+	if (cfg->f_min < MIN_BUS_CLK)
+		cfg->f_min = MIN_BUS_CLK;
+
 	if (cfg->f_max < cfg->f_min || cfg->f_max > host->src_clk_freq)
 		cfg->f_max = host->src_clk_freq;
 
diff --git a/drivers/mmc/socfpga_dw_mmc.c b/drivers/mmc/socfpga_dw_mmc.c
index d6d2d57..be3d8bf 100644
--- a/drivers/mmc/socfpga_dw_mmc.c
+++ b/drivers/mmc/socfpga_dw_mmc.c
@@ -144,6 +144,8 @@ static int socfpga_dwmmc_of_to_plat(struct udevice *dev)
 					"smplsel", 0);
 	host->priv = priv;
 
+	host->fifo_mode = dev_read_bool(dev, "fifo-mode");
+
 	return 0;
 }
 
diff --git a/include/fsl_esdhc_imx.h b/include/fsl_esdhc_imx.h
index b092034..45ed635 100644
--- a/include/fsl_esdhc_imx.h
+++ b/include/fsl_esdhc_imx.h
@@ -39,7 +39,6 @@
 #define VENDORSPEC_HCKEN	0x00001000
 #define VENDORSPEC_IPGEN	0x00000800
 #define VENDORSPEC_INIT		0x20007809
-#define VENDORSPEC_FRC_SDCLK_ON 0x00000100
 
 #define IRQSTAT			0x0002e030
 #define IRQSTAT_DMAE		(0x10000000)
@@ -97,7 +96,6 @@
 #define PRSSTAT_CINS		(0x00010000)
 #define PRSSTAT_BREN		(0x00000800)
 #define PRSSTAT_BWEN		(0x00000400)
-#define PRSSTAT_SDOFF		(0x00000080)
 #define PRSSTAT_SDSTB		(0X00000008)
 #define PRSSTAT_DLA		(0x00000004)
 #define PRSSTAT_CICHB		(0x00000002)
diff --git a/include/mmc.h b/include/mmc.h
index 8600881..6f943e7 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -539,18 +539,6 @@ struct dm_mmc_ops {
 
 #define mmc_get_ops(dev)        ((struct dm_mmc_ops *)(dev)->driver->ops)
 
-int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
-		    struct mmc_data *data);
-int dm_mmc_set_ios(struct udevice *dev);
-int dm_mmc_get_cd(struct udevice *dev);
-int dm_mmc_get_wp(struct udevice *dev);
-int dm_mmc_execute_tuning(struct udevice *dev, uint opcode);
-int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us);
-int dm_mmc_host_power_cycle(struct udevice *dev);
-int dm_mmc_deferred_probe(struct udevice *dev);
-int dm_mmc_reinit(struct udevice *dev);
-int dm_mmc_get_b_max(struct udevice *dev, void *dst, lbaint_t blkcnt);
-
 /* Transition functions for compatibility */
 int mmc_set_ios(struct mmc *mmc);
 int mmc_getcd(struct mmc *mmc);
@@ -795,6 +783,7 @@ int mmc_initialize(struct bd_info *bis);
 int mmc_init_device(int num);
 int mmc_init(struct mmc *mmc);
 int mmc_send_tuning(struct mmc *mmc, u32 opcode, int *cmd_error);
+int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data);
 
 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) || \
     CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || \