On 3 July 2012 16:58, Jaehoon Chung jh80.chung@samsung.com wrote:

Support DesignWare MMC Controller for Samsung Specific.

Signed-off-by: Jaehoon Chung jh80.chung@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com Signed-off-by: Rajeshawari Shinde rajeshwari.s@samsung.com

---

arch/arm/include/asm/arch-exynos/dwmmc.h | 36 ++++++++++++++++++ drivers/mmc/exynos_dw_mmc.c | 58 ++++++++++++++++++++++++++++++ 2 files changed, 94 insertions(+), 0 deletions(-) create mode 100644 arch/arm/include/asm/arch-exynos/dwmmc.h create mode 100644 drivers/mmc/exynos_dw_mmc.c

diff --git a/arch/arm/include/asm/arch-exynos/dwmmc.h b/arch/arm/include/asm/arch-exynos/dwmmc.h new file mode 100644 index 0000000..8acdf9b --- /dev/null +++ b/arch/arm/include/asm/arch-exynos/dwmmc.h @@ -0,0 +1,36 @@ +/*

• • (C) Copyright 2012 SAMSUNG Electronics
• • Jaehoon Chung jh80.chung@samsung.com
• • This program is free software; you can redistribute it and/or modify
• • it under the terms of the GNU General Public License as published by
• • the Free Software Foundation; either version 2 of the License, or
• • (at your option) any later version.
• • This program is distributed in the hope that it will be useful,
• • but WITHOUT ANY WARRANTY; without even the implied warranty of
• • MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
• • GNU General Public License for more details.
• • 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
• */

+#define DWMCI_CLKSEL 0x09C +#define DWMCI_SHIFT_0 0x0 +#define DWMCI_SHIFT_1 0x1 +#define DWMCI_SHIFT_2 0x2 +#define DWMCI_SHIFT_3 0x3 +#define DWMCI_SET_SAMPLE_CLK(x) (x) +#define DWMCI_SET_DRV_CLK(x) ((x) << 16) +#define DWMCI_SET_DIV_RATIO(x) ((x) << 24)

+int exynos_dwmci_init(u32 regbase, int bus_width, int index);

+static inline unsigned int exynos_dwmmc_init(int index, int bus_width) +{

•   unsigned int base = samsung_get_base_mmc() + (0x10000 * index);
  

•   return exynos_dwmci_init(base, bus_width, index);
  

+} diff --git a/drivers/mmc/exynos_dw_mmc.c b/drivers/mmc/exynos_dw_mmc.c new file mode 100644 index 0000000..286a7df --- /dev/null +++ b/drivers/mmc/exynos_dw_mmc.c @@ -0,0 +1,58 @@ +/*

• • (C) Copyright 2012 SAMSUNG Electronics
• • Jaehoon Chung jh80.chung@samsung.com
• • This program is free software; you can redistribute it and/or
• • modify it under the terms of the GNU General Public License as
• • published by the Free Software Foundation; either version 2 of
• • the License, or (at your option) any later version.
• • This program is distributed in the hope that it will be useful,
• • but WITHOUT ANY WARRANTY; without even the implied warranty of
• • MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
• • GNU General Public License for more details.
• • 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 <dwmmc.h> +#include <asm/arch/dwmmc.h> +#include <asm/arch/clk.h>

+static char *EXYNOS_NAME = "EXYNOS DWMMC";

+static void exynos_dwmci_clksel(struct dwmci_host *host) +{

•   u32 val;
  

•   val = DWMCI_SET_SAMPLE_CLK(DWMCI_SHIFT_0) |
  

•           DWMCI_SET_DRV_CLK(DWMCI_SHIFT_0) | DWMCI_SET_DIV_RATIO(0);
  

•   dwmci_writel(host, DWMCI_CLKSEL, val);
  

+}

+int exynos_dwmci_init(u32 regbase, int bus_width, int index) +{

•   struct dwmci_host *host = NULL;
  

•   host = (struct dwmci_host *)malloc(sizeof(struct dwmci_host));
  

•   if (!host) {
  

•           printf("dwmci_host malloc fail!\n");
  

•           return 1;
  

•   }
  

•   host->name = EXYNOS_NAME;
  

•   host->ioaddr = (void *)regbase;
  

•   host->buswidth = bus_width;
  

•   host->clksel = exynos_dwmci_clksel;
  

•   host->dev_index = index;
  

•   host->mmc_clk = get_mmc_clk;
  

•   add_dwmci(host, 52000000, 400000, index);
  

•   return 0;
  

+}

remove this space.

Thanks. Minkyu Kang.