From aada6276c68daf0229442aa8bf6e60aae4c4fd0d Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Wed, 17 Dec 2014 15:50:46 +0800
Subject: [PATCH] x86: crownbay: Add SDHCI support

There are two standard SD card slots on the Crown Bay board, which
are connected to the Topcliff PCH SDIO controllers. Enable the SDHC
support so that we can use them.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---
 arch/x86/cpu/queensbay/Makefile   |  2 +-
 arch/x86/cpu/queensbay/topcliff.c | 47 +++++++++++++++++++++++++++++++
 include/configs/crownbay.h        |  6 ++++
 3 files changed, 54 insertions(+), 1 deletion(-)
 create mode 100644 arch/x86/cpu/queensbay/topcliff.c

diff --git a/arch/x86/cpu/queensbay/Makefile b/arch/x86/cpu/queensbay/Makefile
index ace04ca4d0..2c2ec01ed2 100644
--- a/arch/x86/cpu/queensbay/Makefile
+++ b/arch/x86/cpu/queensbay/Makefile
@@ -4,6 +4,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y += tnc_car.o tnc_dram.o tnc.o
+obj-y += tnc_car.o tnc_dram.o tnc.o topcliff.o
 obj-y += fsp_configs.o fsp_support.o
 obj-$(CONFIG_PCI) += tnc_pci.o
diff --git a/arch/x86/cpu/queensbay/topcliff.c b/arch/x86/cpu/queensbay/topcliff.c
new file mode 100644
index 0000000000..b01422a965
--- /dev/null
+++ b/arch/x86/cpu/queensbay/topcliff.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <malloc.h>
+#include <pci.h>
+#include <pci_ids.h>
+#include <sdhci.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)
+{
+	struct sdhci_host *mmc_host;
+	pci_dev_t devbusfn;
+	u32 iobase;
+	int ret;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mmc_supported); i++) {
+		devbusfn =  pci_find_devices(mmc_supported, i);
+		if (devbusfn == -1)
+			return -ENODEV;
+
+		mmc_host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
+		if (!mmc_host)
+			return -ENOMEM;
+
+		mmc_host->name = "Topcliff SDHCI";
+		pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &iobase);
+		mmc_host->ioaddr = (void *)iobase;
+		mmc_host->quirks = 0;
+		ret = add_sdhci(mmc_host, 0, 0);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
diff --git a/include/configs/crownbay.h b/include/configs/crownbay.h
index 09a52ab0df..b9db6b7649 100644
--- a/include/configs/crownbay.h
+++ b/include/configs/crownbay.h
@@ -48,6 +48,12 @@
 
 #define CONFIG_SPI_FLASH_SST
 
+#define CONFIG_MMC
+#define CONFIG_SDHCI
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MMC_SDMA
+#define CONFIG_CMD_MMC
+
 /* Video is not supported */
 #undef CONFIG_VIDEO
 #undef CONFIG_CFB_CONSOLE
-- 
2.39.5