mmc: dwmmc: socfpga: Add reset ctrl to driver

[u-boot] / drivers / mmc / socfpga_dw_mmc.c

diff --git a/drivers/mmc/socfpga_dw_mmc.c b/drivers/mmc/socfpga_dw_mmc.c
index 6a0e9719b8a49cb354b46ed711350e2bb47a2293..ed8ba10c9328e1db2e285c6196bf355e891ae1a0 100644 (file)
--- a/drivers/mmc/socfpga_dw_mmc.c
+++ b/drivers/mmc/socfpga_dw_mmc.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2013 Altera Corporation <www.altera.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -11,9 +10,10 @@
 #include <dwmmc.h>
 #include <errno.h>
 #include <fdtdec.h>
-#include <libfdt.h>
+#include <linux/libfdt.h>
 #include <linux/err.h>
 #include <malloc.h>
+#include <reset.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -22,6 +22,11 @@ static const struct socfpga_clock_manager *clock_manager_base =
 static const struct socfpga_system_manager *system_manager_base =
                (void *)SOCFPGA_SYSMGR_ADDRESS;
 
+struct socfpga_dwmci_plat {
+       struct mmc_config cfg;
+       struct mmc mmc;
+};
+
 /* socfpga implmentation specific driver private data */
 struct dwmci_socfpga_priv_data {
        struct dwmci_host       host;
@@ -29,6 +34,20 @@ struct dwmci_socfpga_priv_data {
        unsigned int            smplsel;
 };
 
+static void socfpga_dwmci_reset(struct udevice *dev)
+{
+       struct reset_ctl_bulk reset_bulk;
+       int ret;
+
+       ret = reset_get_bulk(dev, &reset_bulk);
+       if (ret) {
+               dev_warn(dev, "Can't get reset: %d\n", ret);
+               return;
+       }
+
+       reset_deassert_bulk(&reset_bulk);
+}
+
 static void socfpga_dwmci_clksel(struct dwmci_host *host)
 {
        struct dwmci_socfpga_priv_data *priv = host->priv;
@@ -65,7 +84,7 @@ static int socfpga_dwmmc_ofdata_to_platdata(struct udevice *dev)
                return -EINVAL;
        }
 
-       fifo_depth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+       fifo_depth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
                                    "fifo-depth", 0);
        if (fifo_depth < 0) {
                printf("DWMMC: Can't get FIFO depth\n");
@@ -73,8 +92,8 @@ static int socfpga_dwmmc_ofdata_to_platdata(struct udevice *dev)
        }
 
        host->name = dev->name;
-       host->ioaddr = (void *)dev_get_addr(dev);
-       host->buswidth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+       host->ioaddr = (void *)devfdt_get_addr(dev);
+       host->buswidth = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
                                        "bus-width", 4);
        host->clksel = socfpga_dwmci_clksel;
 
@@ -87,9 +106,9 @@ static int socfpga_dwmmc_ofdata_to_platdata(struct udevice *dev)
        host->bus_hz = clk;
        host->fifoth_val = MSIZE(0x2) |
                RX_WMARK(fifo_depth / 2 - 1) | TX_WMARK(fifo_depth / 2);
-       priv->drvsel = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
+       priv->drvsel = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
                                       "drvsel", 3);
-       priv->smplsel = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
+       priv->smplsel = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
                                        "smplsel", 0);
        host->priv = priv;
 
@@ -98,18 +117,43 @@ static int socfpga_dwmmc_ofdata_to_platdata(struct udevice *dev)
 
 static int socfpga_dwmmc_probe(struct udevice *dev)
 {
+#ifdef CONFIG_BLK
+       struct socfpga_dwmci_plat *plat = dev_get_platdata(dev);
+#endif
        struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
        struct dwmci_socfpga_priv_data *priv = dev_get_priv(dev);
        struct dwmci_host *host = &priv->host;
+
+       socfpga_dwmci_reset(dev);
+
+#ifdef CONFIG_BLK
+       dwmci_setup_cfg(&plat->cfg, host, host->bus_hz, 400000);
+       host->mmc = &plat->mmc;
+#else
        int ret;
 
        ret = add_dwmci(host, host->bus_hz, 400000);
        if (ret)
                return ret;
-
+#endif
+       host->mmc->priv = &priv->host;
        upriv->mmc = host->mmc;
        host->mmc->dev = dev;
 
+       return dwmci_probe(dev);
+}
+
+static int socfpga_dwmmc_bind(struct udevice *dev)
+{
+#ifdef CONFIG_BLK
+       struct socfpga_dwmci_plat *plat = dev_get_platdata(dev);
+       int ret;
+
+       ret = dwmci_bind(dev, &plat->mmc, &plat->cfg);
+       if (ret)
+               return ret;
+#endif
+
        return 0;
 }
 
@@ -123,6 +167,9 @@ U_BOOT_DRIVER(socfpga_dwmmc_drv) = {
        .id             = UCLASS_MMC,
        .of_match       = socfpga_dwmmc_ids,
        .ofdata_to_platdata = socfpga_dwmmc_ofdata_to_platdata,
+       .ops            = &dm_dwmci_ops,
+       .bind           = socfpga_dwmmc_bind,
        .probe          = socfpga_dwmmc_probe,
        .priv_auto_alloc_size = sizeof(struct dwmci_socfpga_priv_data),
+       .platdata_auto_alloc_size = sizeof(struct socfpga_dwmci_plat),
 };