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ARM: S3C64XX: add HSMMC2 support 

This adds support for the third SDHCI controller.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Maurus Cuelenaere 2009-11-23 13:34:46 +01:00 committed by Ben Dooks
parent 6a88e9838f
commit 92b118f696
7 changed files with 122 additions and 0 deletions
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1
arch/arm/mach-s3c6400/s3c6400.c
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@ -45,6 +45,7 @@ void __init s3c6400_map_io(void)
s3c6400_default_sdhci0();
s3c6400_default_sdhci1();
s3c6400_default_sdhci2();
/* the i2c devices are directly compatible with s3c2440 */
s3c_i2c0_setname("s3c2440-i2c");

1
arch/arm/mach-s3c6410/cpu.c
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@ -58,6 +58,7 @@ void __init s3c6410_map_io(void)
/* initialise device information early */
s3c6410_default_sdhci0();
s3c6410_default_sdhci1();
s3c6410_default_sdhci2();
/* the i2c devices are directly compatible with s3c2440 */
s3c_i2c0_setname("s3c2440-i2c");

5
arch/arm/plat-s3c/Kconfig
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@ -178,6 +178,11 @@ config S3C_DEV_HSMMC1
help
Compile in platform device definitions for HSMMC channel 1
config S3C_DEV_HSMMC2
bool
help
Compile in platform device definitions for HSMMC channel 2
config S3C_DEV_I2C1
bool
help

1
arch/arm/plat-s3c/Makefile
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@ -36,6 +36,7 @@ obj-$(CONFIG_HAVE_PWM) += pwm.o
obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o
obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o
obj-$(CONFIG_S3C_DEV_HSMMC2) += dev-hsmmc2.o
obj-y += dev-i2c0.o
obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o
obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o

69
arch/arm/plat-s3c/dev-hsmmc2.c Normal file
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@ -0,0 +1,69 @@
/* linux/arch/arm/plat-s3c/dev-hsmmc2.c
*
* Copyright (c) 2009 Maurus Cuelenaere
*
* Based on arch/arm/plat-s3c/dev-hsmmc1.c
* original file Copyright (c) 2008 Simtec Electronics
*
* S3C series device definition for hsmmc device 2
*
* 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>
#include <plat/cpu.h>
#define S3C_SZ_HSMMC (0x1000)
static struct resource s3c_hsmmc2_resource[] = {
[0] = {
.start = S3C_PA_HSMMC2,
.end = S3C_PA_HSMMC2 + S3C_SZ_HSMMC - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_HSMMC2,
.end = IRQ_HSMMC2,
.flags = IORESOURCE_IRQ,
}
};
static u64 s3c_device_hsmmc2_dmamask = 0xffffffffUL;
struct s3c_sdhci_platdata s3c_hsmmc2_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_hsmmc2 = {
.name = "s3c-sdhci",
.id = 2,
.num_resources = ARRAY_SIZE(s3c_hsmmc2_resource),
.resource = s3c_hsmmc2_resource,
.dev = {
.dma_mask = &s3c_device_hsmmc2_dmamask,
.coherent_dma_mask = 0xffffffffUL,
.platform_data = &s3c_hsmmc2_def_platdata,
},
};
void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd)
{
struct s3c_sdhci_platdata *set = &s3c_hsmmc2_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;
}

25
arch/arm/plat-s3c/include/plat/sdhci.h
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@ -57,6 +57,7 @@ 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);
/* Default platform data, exported so that per-cpu initialisation can
* set the correct one when there are more than one cpu type selected.
@ -64,11 +65,13 @@ extern void s3c_sdhci1_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;
/* Helper function availablity */
extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
/* S3C6400 SDHCI setup */
@ -103,6 +106,17 @@ static inline void s3c6400_default_sdhci1(void)
static inline void s3c6400_default_sdhci1(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC1 */
#ifdef CONFIG_S3C_DEV_HSMMC2
static inline void s3c6400_default_sdhci2(void)
{
s3c_hsmmc2_def_platdata.clocks = s3c6400_hsmmc_clksrcs;
s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
s3c_hsmmc2_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
}
#else
static inline void s3c6400_default_sdhci2(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC2 */
#else
static inline void s3c6400_default_sdhci0(void) { }
static inline void s3c6400_default_sdhci1(void) { }
@ -140,6 +154,17 @@ static inline void s3c6410_default_sdhci1(void)
static inline void s3c6410_default_sdhci1(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC1 */
#ifdef CONFIG_S3C_DEV_HSMMC2
static inline void s3c6410_default_sdhci2(void)
{
s3c_hsmmc2_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
s3c_hsmmc2_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
}
#else
static inline void s3c6410_default_sdhci2(void) { }
#endif /* CONFIG_S3C_DEV_HSMMC2 */
#else
static inline void s3c6410_default_sdhci0(void) { }
static inline void s3c6410_default_sdhci1(void) { }

20
arch/arm/plat-s3c64xx/setup-sdhci-gpio.c
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@ -53,3 +53,23 @@ void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP);
s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3));
}
void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
{
unsigned int gpio;
unsigned int end;
end = S3C64XX_GPH(6 + width);
/* Set all the necessary GPH pins to special-function 1 */
for (gpio = S3C64XX_GPH(6); gpio < end; gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
/* Set all the necessary GPC pins to special-function 1 */
for (gpio = S3C64XX_GPC(4); gpio < S3C64XX_GPC(6); gpio++) {
s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
}
}