[U-Boot] [PATCH] mmc: atmel: Add support fo atmel sdhci

[Wenyou Yang]

Signed-off-by: Wenyou Yang <wenyou.yang at atmel.com>
---

 arch/arm/mach-at91/include/mach/atmel_sdhci.h |   13 +++++++++
 drivers/mmc/Makefile                          |    1 +
 drivers/mmc/atmel_sdhci.c                     |   35 +++++++++++++++++++++++++
 3 files changed, 49 insertions(+)
 create mode 100644 arch/arm/mach-at91/include/mach/atmel_sdhci.h
 create mode 100644 drivers/mmc/atmel_sdhci.c

diff --git a/arch/arm/mach-at91/include/mach/atmel_sdhci.h b/arch/arm/mach-at91/include/mach/atmel_sdhci.h
new file mode 100644
index 0000000..cf3bf89
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/atmel_sdhci.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2015 Atmel Corporation
+ *		      Wenyou.Yang <wenyou.yang at atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef	__ATMEL_SDHCI_H
+#define	__ATMEL_SDHCI_H
+
+int atmel_sdhci_init(void *regbase, u32 id);
+
+#endif
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 99d0295..5d35705 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -8,6 +8,7 @@
 obj-$(CONFIG_DM_MMC) += mmc-uclass.o
 
 obj-$(CONFIG_ARM_PL180_MMCI) += arm_pl180_mmci.o
+obj-$(CONFIG_ATMEL_SDHCI) += atmel_sdhci.o
 obj-$(CONFIG_BCM2835_SDHCI) += bcm2835_sdhci.o
 obj-$(CONFIG_BFIN_SDH) += bfin_sdh.o
 obj-$(CONFIG_DAVINCI_MMC) += davinci_mmc.o
diff --git a/drivers/mmc/atmel_sdhci.c b/drivers/mmc/atmel_sdhci.c
new file mode 100644
index 0000000..64776a1
--- /dev/null
+++ b/drivers/mmc/atmel_sdhci.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2015 Atmel Corporation
+ *		      Wenyou.Yang <wenyou.yang at atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <sdhci.h>
+#include <asm/arch/clk.h>
+
+#define ATMEL_SDHC_MIN_FRQ	400000
+
+int atmel_sdhci_init(void *regbase, u32 id)
+{
+	struct sdhci_host *host = NULL;
+	u32 max_clk, min_clk = ATMEL_SDHC_MIN_FRQ;
+
+	host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
+	if (!host) {
+		printf("atmel_sdhci_init: sdhci_host malloc fail\n");
+		return -1;
+	}
+
+	host->name = "atmel_sdhci";
+	host->ioaddr = (void *)regbase;
+	host->quirks = 0;
+	host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
+	max_clk = at91_get_periph_generated_clk(id);
+
+	add_sdhci(host, max_clk, min_clk);
+
+	return 0;
+}
-- 
1.7.9.5