[U-Boot] [PATCH v4 4/9] mmc: arm_pl180_mmci: Update to support CONFIG_BLK

[Patrice Chotard]

Config flag CONFIG_BLK becomes mandatory, update arm_pl180_mmci
to support this config.

This driver is used by STM32Fx and by Vexpress platforms.
Only STM32Fx are DM ready. No DM code is isolated and will be
removed easily when wexpress will be converted to DM.

Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2:
 - replace devfdt_get_addr() by dev_read_addr()
 - re-introduce arm_pl180_mmc_ofdata_to_platdata()

 drivers/mmc/arm_pl180_mmci.c | 67 ++++++++++++++++++++++++++------------------
 1 file changed, 40 insertions(+), 27 deletions(-)

diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c
index e267cd782e8b..c4d94d102cc1 100644
--- a/drivers/mmc/arm_pl180_mmci.c
+++ b/drivers/mmc/arm_pl180_mmci.c
@@ -357,13 +357,13 @@ static const struct mmc_ops arm_pl180_mmci_ops = {
 	.set_ios = host_set_ios,
 	.init = mmc_host_reset,
 };
-#endif
 
 /*
  * mmc_host_init - initialize the mmc controller.
  * Set initial clock and power for mmc slot.
  * Initialize mmc struct and register with mmc framework.
  */
+
 int arm_pl180_mmci_init(struct pl180_mmc_host *host, struct mmc **mmc)
 {
 	u32 sdi_u32;
@@ -377,9 +377,8 @@ int arm_pl180_mmci_init(struct pl180_mmc_host *host, struct mmc **mmc)
 	writel(sdi_u32, &host->base->mask0);
 
 	host->cfg.name = host->name;
-#ifndef CONFIG_DM_MMC
 	host->cfg.ops = &arm_pl180_mmci_ops;
-#endif
+
 	/* TODO remove the duplicates */
 	host->cfg.host_caps = host->caps;
 	host->cfg.voltages = host->voltages;
@@ -393,20 +392,34 @@ int arm_pl180_mmci_init(struct pl180_mmc_host *host, struct mmc **mmc)
 	*mmc = mmc_create(&host->cfg, host);
 	if (!*mmc)
 		return -1;
-
 	debug("registered mmc interface number is:%d\n",
 	      (*mmc)->block_dev.devnum);
 
 	return 0;
 }
+#endif
 
 #ifdef CONFIG_DM_MMC
+static void arm_pl180_mmc_init(struct pl180_mmc_host *host)
+{
+	u32 sdi_u32;
+
+	writel(host->pwr_init, &host->base->power);
+	writel(host->clkdiv_init, &host->base->clock);
+	udelay(CLK_CHANGE_DELAY);
+
+	/* Disable mmc interrupts */
+	sdi_u32 = readl(&host->base->mask0) & ~SDI_MASK0_MASK;
+	writel(sdi_u32, &host->base->mask0);
+}
+
 static int arm_pl180_mmc_probe(struct udevice *dev)
 {
 	struct arm_pl180_mmc_plat *pdata = dev_get_platdata(dev);
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
 	struct mmc *mmc = &pdata->mmc;
-	struct pl180_mmc_host *host = mmc->priv;
+	struct pl180_mmc_host *host = dev->priv;
+	struct mmc_config *cfg = &pdata->cfg;
 	struct clk clk;
 	u32 bus_width;
 	int ret;
@@ -421,27 +434,28 @@ static int arm_pl180_mmc_probe(struct udevice *dev)
 		return ret;
 	}
 
-	strcpy(host->name, "MMC");
 	host->pwr_init = INIT_PWR;
 	host->clkdiv_init = SDI_CLKCR_CLKDIV_INIT_V1 | SDI_CLKCR_CLKEN |
 			    SDI_CLKCR_HWFC_EN;
-	host->voltages = VOLTAGE_WINDOW_SD;
-	host->caps = 0;
 	host->clock_in = clk_get_rate(&clk);
-	host->clock_min = host->clock_in / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
-	host->clock_max = dev_read_u32_default(dev, "max-frequency",
-					       MMC_CLOCK_MAX);
 	host->version2 = dev_get_driver_data(dev);
 
+	cfg->name = dev->name;
+	cfg->voltages = VOLTAGE_WINDOW_SD;
+	cfg->host_caps = 0;
+	cfg->f_min = host->clock_in / (2 * (SDI_CLKCR_CLKDIV_INIT_V1 + 1));
+	cfg->f_max = dev_read_u32_default(dev, "max-frequency", MMC_CLOCK_MAX);
+	cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+
 	gpio_request_by_name(dev, "cd-gpios", 0, &host->cd_gpio, GPIOD_IS_IN);
 
 	bus_width = dev_read_u32_default(dev, "bus-width", 1);
 	switch (bus_width) {
 	case 8:
-		host->caps |= MMC_MODE_8BIT;
+		cfg->host_caps |= MMC_MODE_8BIT;
 		/* Hosts capable of 8-bit transfers can also do 4 bits */
 	case 4:
-		host->caps |= MMC_MODE_4BIT;
+		cfg->host_caps |= MMC_MODE_4BIT;
 		break;
 	case 1:
 		break;
@@ -449,19 +463,21 @@ static int arm_pl180_mmc_probe(struct udevice *dev)
 		dev_err(dev, "Invalid bus-width value %u\n", bus_width);
 	}
 
-	ret = arm_pl180_mmci_init(host, &mmc);
-	if (ret) {
-		dev_err(dev, "arm_pl180_mmci init failed\n");
-		return ret;
-	}
-
+	arm_pl180_mmc_init(host);
+	mmc->priv = host;
 	mmc->dev = dev;
-	dev->priv = host;
 	upriv->mmc = mmc;
 
 	return 0;
 }
 
+int arm_pl180_mmc_bind(struct udevice *dev)
+{
+	struct arm_pl180_mmc_plat *plat = dev_get_platdata(dev);
+
+	return mmc_bind(dev, &plat->mmc, &plat->cfg);
+}
+
 static int dm_host_request(struct udevice *dev, struct mmc_cmd *cmd,
 			   struct mmc_data *data)
 {
@@ -479,9 +495,7 @@ static int dm_host_set_ios(struct udevice *dev)
 
 static int dm_mmc_getcd(struct udevice *dev)
 {
-	struct arm_pl180_mmc_plat *pdata = dev_get_platdata(dev);
-	struct mmc *mmc = &pdata->mmc;
-	struct pl180_mmc_host *host = mmc->priv;
+	struct pl180_mmc_host *host = dev->priv;
 	int value = 1;
 
 	if (dm_gpio_is_valid(&host->cd_gpio)) {
@@ -501,12 +515,10 @@ static const struct dm_mmc_ops arm_pl180_dm_mmc_ops = {
 
 static int arm_pl180_mmc_ofdata_to_platdata(struct udevice *dev)
 {
-	struct arm_pl180_mmc_plat *pdata = dev_get_platdata(dev);
-	struct mmc *mmc = &pdata->mmc;
-	struct pl180_mmc_host *host = mmc->priv;
+	struct pl180_mmc_host *host = dev->priv;
 	fdt_addr_t addr;
 
-	addr = devfdt_get_addr(dev);
+	addr = dev_read_addr(dev);
 	if (addr == FDT_ADDR_T_NONE)
 		return -EINVAL;
 
@@ -527,6 +539,7 @@ U_BOOT_DRIVER(arm_pl180_mmc) = {
 	.ops = &arm_pl180_dm_mmc_ops,
 	.probe = arm_pl180_mmc_probe,
 	.ofdata_to_platdata = arm_pl180_mmc_ofdata_to_platdata,
+	.bind = arm_pl180_mmc_bind,
 	.priv_auto_alloc_size = sizeof(struct pl180_mmc_host),
 	.platdata_auto_alloc_size = sizeof(struct arm_pl180_mmc_plat),
 };
-- 
1.9.1