x86: Convert MMC to driver model

Convert the pci_mmc driver over to driver model and migrate all x86 boards
that use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: remove DM_MMC from edison_defconfig]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

arch/Kconfig

@@ -98,6 +98,7 @@ config X86
 	imply DM_ETH
 	imply DM_GPIO
 	imply DM_KEYBOARD
+	imply DM_MMC
 	imply DM_RTC
 	imply DM_SERIAL
 	imply DM_SPI

arch/x86/cpu/baytrail/valleyview.c

@@ -11,18 +11,6 @@
 #include <asm/mrccache.h>
 #include <asm/post.h>
 
-static struct pci_device_id mmc_supported[] = {
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_SDIO },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_SD },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_EMMC2 },
-	{},
-};
-
-int cpu_mmc_init(bd_t *bis)
-{
-	return pci_mmc_init("ValleyView SDHCI", mmc_supported);
-}
-
 #ifndef CONFIG_EFI_APP
 int arch_cpu_init(void)
 {

arch/x86/cpu/quark/quark.c

@@ -16,11 +16,6 @@
 #include <asm/arch/msg_port.h>
 #include <asm/arch/quark.h>
 
-static struct pci_device_id mmc_supported[] = {
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_SDIO },
-	{},
-};
-
 static void quark_setup_mtrr(void)
 {
 	u32 base, mask;
@@ -328,11 +323,6 @@ int arch_early_init_r(void)
 	return 0;
 }
 
-int cpu_mmc_init(bd_t *bis)
-{
-	return pci_mmc_init("Quark SDHCI", mmc_supported);
-}
-
 int arch_misc_init(void)
 {
 #ifdef CONFIG_ENABLE_MRC_CACHE

arch/x86/cpu/queensbay/Makefile

@@ -5,4 +5,4 @@
 #
 
 obj-y += fsp_configs.o irq.o
-obj-y += tnc.o topcliff.o
+obj-y += tnc.o

arch/x86/cpu/queensbay/topcliff.c

@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <mmc.h>
-#include <pci_ids.h>
-
-static struct pci_device_id mmc_supported[] = {
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SDIO_0 },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SDIO_1 },
-	{},
-};
-
-int cpu_mmc_init(bd_t *bis)
-{
-	return pci_mmc_init("Topcliff SDHCI", mmc_supported);
-}

configs/edison_defconfig

@@ -27,7 +27,6 @@ CONFIG_OF_EMBED=y
 CONFIG_CPU=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_RAM=y
-CONFIG_DM_MMC=y
 CONFIG_DM_PCI_COMPAT=y
 CONFIG_USB_DWC3_GADGET=y
 CONFIG_USB_GADGET=y

drivers/mmc/pci_mmc.c

@@ -6,37 +6,71 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <errno.h>
 #include <malloc.h>
+#include <mapmem.h>
 #include <sdhci.h>
 #include <asm/pci.h>
 
-int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported)
+struct pci_mmc_plat {
+	struct mmc_config cfg;
+	struct mmc mmc;
+};
+
+struct pci_mmc_priv {
+	struct sdhci_host host;
+	void *base;
+};
+
+static int pci_mmc_probe(struct udevice *dev)
 {
-	struct sdhci_host *mmc_host;
-	u32 iobase;
+	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
+	struct pci_mmc_plat *plat = dev_get_platdata(dev);
+	struct pci_mmc_priv *priv = dev_get_priv(dev);
+	struct sdhci_host *host = &priv->host;
+	u32 ioaddr;
 	int ret;
-	int i;
-
-	for (i = 0; ; i++) {
-		struct udevice *dev;
-
-		ret = pci_find_device_id(mmc_supported, i, &dev);
-		if (ret)
-			return ret;
-		mmc_host = malloc(sizeof(struct sdhci_host));
-		if (!mmc_host)
-			return -ENOMEM;
-
-		mmc_host->name = name;
-		dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
-		mmc_host->ioaddr = (void *)(ulong)iobase;
-		mmc_host->quirks = 0;
-		mmc_host->max_clk = 0;
-		ret = add_sdhci(mmc_host, 0, 0);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
+
+	dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &ioaddr);
+	host->ioaddr = map_sysmem(ioaddr, 0);
+	host->name = dev->name;
+	ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
+	if (ret)
+		return ret;
+	host->mmc = &plat->mmc;
+	host->mmc->priv = &priv->host;
+	host->mmc->dev = dev;
+	upriv->mmc = host->mmc;
+
+	return sdhci_probe(dev);
 }
+
+static int pci_mmc_bind(struct udevice *dev)
+{
+	struct pci_mmc_plat *plat = dev_get_platdata(dev);
+
+	return sdhci_bind(dev, &plat->mmc, &plat->cfg);
+}
+
+U_BOOT_DRIVER(pci_mmc) = {
+	.name	= "pci_mmc",
+	.id	= UCLASS_MMC,
+	.bind	= pci_mmc_bind,
+	.probe	= pci_mmc_probe,
+	.ops	= &sdhci_ops,
+	.priv_auto_alloc_size = sizeof(struct pci_mmc_priv),
+	.platdata_auto_alloc_size = sizeof(struct pci_mmc_plat),
+};
+
+static struct pci_device_id mmc_supported[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_SDIO) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_SD) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_EMMC2) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_SDIO) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SDIO_0) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TCF_SDIO_1) },
+	{},
+};
+
+U_BOOT_PCI_DEVICE(pci_mmc, mmc_supported);

include/mmc.h

@@ -585,18 +585,6 @@ int cpu_mmc_init(bd_t *bis);
 int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr);
 int mmc_get_env_dev(void);
 
-struct pci_device_id;
-
-/**
- * pci_mmc_init() - set up PCI MMC devices
- *
- * This finds all the matching PCI IDs and sets them up as MMC devices.
- *
- * @name:		Name to use for devices
- * @mmc_supported:	PCI IDs to search for, terminated by {0, 0}
- */
-int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported);
-
 /* Set block count limit because of 16 bit register limit on some hardware*/
 #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
 #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535