[PATCH v2 1/2] ARM: SAMSUNG: Add device definition for HSMMC3
Maurus Cuelenaere
mcuelenaere at gmail.com
Fri Jul 2 20:17:48 EDT 2010
Op 03-07-10 02:07, Kukjin Kim schreef:
> From: Hyuk Lee <hyuk1.lee at samsung.com>
>
> This patch adds hsmmc3 device definition in plat-samsung. Because now
> S5PV210 can support 4 hsmmc such as hsmmc0, hsmmc1, hsmmc2 and hsmmc3
> and that can be used in further Samsung SoCs.
>
> Signed-off-by: Hyuk Lee <hyuk1.lee at samsung.com>
> Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
> ---
> Changes since previous patch:
>
> - coding style fixes
>
> arch/arm/plat-samsung/Kconfig | 5 ++
> arch/arm/plat-samsung/Makefile | 1 +
> arch/arm/plat-samsung/dev-hsmmc3.c | 72 ++++++++++++++++++++++++++++
> arch/arm/plat-samsung/include/plat/devs.h | 1 +
> arch/arm/plat-samsung/include/plat/sdhci.h | 15 ++++++
> 5 files changed, 94 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/plat-samsung/dev-hsmmc3.c
>
> diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
> index 2753fb3..8efb012 100644
> --- a/arch/arm/plat-samsung/Kconfig
> +++ b/arch/arm/plat-samsung/Kconfig
> @@ -160,6 +160,11 @@ config S3C_DEV_HSMMC2
> help
> Compile in platform device definitions for HSMMC channel 2
>
> +config S3C_DEV_HSMMC3
> + bool
> + help
> + Compile in platform device definitions for HSMMC channel 3
> +
> config S3C_DEV_HWMON
> bool
> help
> diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
> index b1d82cc..c9abae5 100644
> --- a/arch/arm/plat-samsung/Makefile
> +++ b/arch/arm/plat-samsung/Makefile
> @@ -33,6 +33,7 @@ obj-$(CONFIG_S3C_ADC) += adc.o
> obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o
> obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o
> obj-$(CONFIG_S3C_DEV_HSMMC2) += dev-hsmmc2.o
> +obj-$(CONFIG_S3C_DEV_HSMMC3) += dev-hsmmc3.o
> obj-$(CONFIG_S3C_DEV_HWMON) += dev-hwmon.o
> obj-y += dev-i2c0.o
> obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o
> diff --git a/arch/arm/plat-samsung/dev-hsmmc3.c b/arch/arm/plat-samsung/dev-hsmmc3.c
> new file mode 100644
> index 0000000..57bd394
> --- /dev/null
> +++ b/arch/arm/plat-samsung/dev-hsmmc3.c
> @@ -0,0 +1,72 @@
> +/* linux/arch/arm/plat-samsung/dev-hsmmc3.c
> + *
> + * Copyright (c) 2010 Samsung Electronics Co., Ltd.
> + * http://www.samsung.com
> + *
> + * Copyright (c) 2008 Simtec Electronics
> + * Ben Dooks <ben at simtec.co.uk>
> + * http://armlinux.simtec.co.uk/
> + *
> + * Based on arch/arm/plat-samsung/dev-hsmmc1.c
> + *
> + * Samsung device definition for hsmmc device 3
> + *
> + * 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.
> +*/
> +
> +#include <linux/kernel.h>
> +#include <linux/platform_device.h>
> +#include <linux/mmc/host.h>
> +
> +#include <mach/map.h>
> +#include <plat/sdhci.h>
> +#include <plat/devs.h>
> +
> +#define S3C_SZ_HSMMC (0x1000)
> +
> +static struct resource s3c_hsmmc3_resource[] = {
> + [0] = {
> + .start = S3C_PA_HSMMC3,
> + .end = S3C_PA_HSMMC3 + S3C_SZ_HSMMC - 1,
> + .flags = IORESOURCE_MEM,
> + },
> + [1] = {
> + .start = IRQ_MMC3,
> + .end = IRQ_MMC3,
> + .flags = IORESOURCE_IRQ,
> + }
> +};
> +
> +static u64 s3c_device_hsmmc3_dmamask = 0xffffffffUL;
> +
> +struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata = {
> + .max_width = 4,
> + .host_caps = (MMC_CAP_4_BIT_DATA |
> + MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
> +};
> +
> +struct platform_device s3c_device_hsmmc3 = {
> + .name = "s3c-sdhci",
> + .id = 3,
> + .num_resources = ARRAY_SIZE(s3c_hsmmc3_resource),
> + .resource = s3c_hsmmc3_resource,
> + .dev = {
> + .dma_mask = &s3c_device_hsmmc3_dmamask,
> + .coherent_dma_mask = 0xffffffffUL,
> + .platform_data = &s3c_hsmmc3_def_platdata,
> + },
> +};
> +
> +void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd)
> +{
> + struct s3c_sdhci_platdata *set = &s3c_hsmmc3_def_platdata;
> +
> + set->max_width = pd->max_width;
> +
> + if (pd->cfg_gpio)
> + set->cfg_gpio = pd->cfg_gpio;
> + if (pd->cfg_card)
> + set->cfg_card = pd->cfg_card;
> +}
> diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
> index e6144e4..7842acd 100644
> --- a/arch/arm/plat-samsung/include/plat/devs.h
> +++ b/arch/arm/plat-samsung/include/plat/devs.h
> @@ -54,6 +54,7 @@ extern struct platform_device s3c_device_hwmon;
> extern struct platform_device s3c_device_hsmmc0;
> extern struct platform_device s3c_device_hsmmc1;
> extern struct platform_device s3c_device_hsmmc2;
> +extern struct platform_device s3c_device_hsmmc3;
>
> extern struct platform_device s3c_device_spi0;
> extern struct platform_device s3c_device_spi1;
> diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h
> index 98ebd50..1314ffa 100644
> --- a/arch/arm/plat-samsung/include/plat/sdhci.h
> +++ b/arch/arm/plat-samsung/include/plat/sdhci.h
> @@ -58,6 +58,7 @@ struct s3c_sdhci_platdata {
> extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
> extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
> extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
> +extern void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd);
>
> /* Default platform data, exported so that per-cpu initialisation can
> * set the correct one when there are more than one cpu type selected.
> @@ -66,6 +67,7 @@ extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
> extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
> extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
> extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
> +extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;
>
> /* Helper function availablity */
>
> @@ -78,6 +80,7 @@ extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
> extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
> extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
> extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
> +extern void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
Shouldn't this be in PATCH 2/2?
>
> /* S3C6400 SDHCI setup */
>
> @@ -264,10 +267,22 @@ static inline void s5pv210_default_sdhci2(void)
> static inline void s5pv210_default_sdhci2(void) { }
> #endif /* CONFIG_S3C_DEV_HSMMC2 */
>
> +#ifdef CONFIG_S3C_DEV_HSMMC3
> +static inline void s5pv210_default_sdhci3(void)
> +{
> + s3c_hsmmc3_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
> + s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio;
> + s3c_hsmmc3_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
> +}
> +#else
> +static inline void s5pv210_default_sdhci3(void) { }
> +#endif /* CONFIG_S3C_DEV_HSMMC3 */
This could be simplified by putting the #ifdef inside the function.
Also, same comment as above.
> +
> #else
> static inline void s5pv210_default_sdhci0(void) { }
> static inline void s5pv210_default_sdhci1(void) { }
> static inline void s5pv210_default_sdhci2(void) { }
> +static inline void s5pv210_default_sdhci3(void) { }
> #endif /* CONFIG_S5PC100_SETUP_SDHCI */
>
>
--
Maurus Cuelenaere
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