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.