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[ARM] S3C: Add SDHCI (HSMMC) channel 1 device definition

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Add device definition and support code for the Samsung
HSMMC channel 1 device.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks 2008-10-31 16:14:39 +00:00
parent 5cc7fd88fc
commit a2205cd2cb
5 changed files with 89 additions and 1 deletions
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1
arch/arm/mach-s3c6410/cpu.c
View File

@ -55,6 +55,7 @@ void __init s3c6410_map_io(void)
/* initialise device information early */
s3c6410_default_sdhci0();
s3c6410_default_sdhci1();
}
void __init s3c6410_init_clocks(int xtal)

6
arch/arm/plat-s3c/Kconfig
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@ -154,3 +154,9 @@ config S3C_DEV_HSMMC
depends on PLAT_S3C
help
Compile in platform device definitions for HSMMC code
config S3C_DEV_HSMMC1
bool
depends on PLAT_S3C
help
Compile in platform device definitions for HSMMC channel 1

1
arch/arm/plat-s3c/Makefile
View File

@ -21,3 +21,4 @@ obj-y += gpio-config.o
# devices
obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o
obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o

68
arch/arm/plat-s3c/dev-hsmmc1.c Normal file
View File

@ -0,0 +1,68 @@
/* linux/arch/arm/plat-s3c/dev-hsmmc1.c
*
* Copyright (c) 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* S3C series device definition for hsmmc device 1
*
* 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_hsmmc1_resource[] = {
[0] = {
.start = S3C_PA_HSMMC1,
.end = S3C_PA_HSMMC1 + S3C_SZ_HSMMC - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_HSMMC1,
.end = IRQ_HSMMC1,
.flags = IORESOURCE_IRQ,
}
};
static u64 s3c_device_hsmmc1_dmamask = 0xffffffffUL;
struct s3c_sdhci_platdata s3c_hsmmc1_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_hsmmc1 = {
.name = "s3c-sdhci",
.id = 1,
.num_resources = ARRAY_SIZE(s3c_hsmmc1_resource),
.resource = s3c_hsmmc1_resource,
.dev = {
.dma_mask = &s3c_device_hsmmc1_dmamask,
.coherent_dma_mask = 0xffffffffUL,
.platform_data = &s3c_hsmmc1_def_platdata,
},
};
void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd)
{
struct s3c_sdhci_platdata *set = &s3c_hsmmc1_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;
}

14
arch/arm/plat-s3c/include/plat/sdhci.h
View File

@ -56,12 +56,14 @@ struct s3c_sdhci_platdata {
* make the structure itself __initdata.
*/
extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
extern void s3c_sdhci1_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.
*/
extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platata;
extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
/* Helper function availablity */
@ -69,6 +71,8 @@ extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platata;
extern char *s3c6410_hsmmc_clksrcs[4];
extern void s3c6410_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s3c6410_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev,
void __iomem *r,
struct mmc_ios *ios,
@ -80,8 +84,16 @@ static inline void s3c6410_default_sdhci0(void)
s3c_hsmmc0_def_platdata.cfg_gpio = s3c6410_setup_sdhci0_cfg_gpio;
s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
}
static inline void s3c6410_default_sdhci1(void)
{
s3c_hsmmc1_def_platdata.clocks = s3c6410_hsmmc_clksrcs;
s3c_hsmmc1_def_platdata.cfg_gpio = s3c6410_setup_sdhci0_cfg_gpio;
s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card;
}
#else
static inline void s3c6410_default_sdhci0(void) { }
static inline void s3c6410_default_sdhci1(void) { }
#endif /* CONFIG_S3C6410_SETUP_SDHCI */
#endif /* __PLAT_S3C_SDHCI_H */