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mmc: Add support for Xilinx Zynq sdhci controller

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Add support for SD, MMC and eMMC card on Xilinx Zynq.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Michal Simek
2013-04-22 14:56:49 +02:00
parent f97d7e8be9
commit 293eb33fcb
6 changed files with 79 additions and 0 deletions
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1
drivers/mmc/Makefile
View File

@@ -49,6 +49,7 @@ COBJS-$(CONFIG_SH_MMCIF) += sh_mmcif.o
COBJS-$(CONFIG_TEGRA_MMC) += tegra_mmc.o
COBJS-$(CONFIG_DWMMC) += dw_mmc.o
COBJS-$(CONFIG_EXYNOS_DWMMC) += exynos_dw_mmc.o
COBJS-$(CONFIG_ZYNQ_SDHCI) += zynq_sdhci.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)

40
drivers/mmc/zynq_sdhci.c Normal file
View File

@@ -0,0 +1,40 @@
/*
* (C) Copyright 2013 Inc.
*
* Xilinx Zynq SD Host Controller Interface
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <common.h>
#include <malloc.h>
#include <sdhci.h>
#include <asm/arch/sys_proto.h>
int zynq_sdhci_init(u32 regbase)
{
struct sdhci_host *host = NULL;
host = (struct sdhci_host *)malloc(sizeof(struct sdhci_host));
if (!host) {
printf("zynq_sdhci_init: sdhci_host malloc fail\n");
return 1;
}
host->name = "zynq_sdhci";
host->ioaddr = (void *)regbase;
host->quirks = SDHCI_QUIRK_NO_CD | SDHCI_QUIRK_WAIT_SEND_CMD;
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
host->host_caps = MMC_MODE_HC;
add_sdhci(host, 52000000, 52000000 >> 9);
return 0;
}