Message ID | 4FF2A60C.4090703@samsung.com |
---|---|
State | Changes Requested |
Delegated to: | Andy Fleming |
Headers | show |
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.
On Tue, Jul 3, 2012 at 12:58 AM, 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 ++++++++++++++++++++++++++++++ > +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)); It is not necessary (or desirable) to cast the result of malloc. Andy
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; +} +