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ARM: ux500: Enable Device Tree support mmci for Snowball

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Allow proper initialisation for MMC via the mmci driver
for the Snowball low-cost development board using DT. At
the moment we continue to use DMA setup from platform code.
Once the DMA generic DT bindings have been completed we
can then port the remainder over to DT.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones 2012-05-29 14:40:04 +08:00
parent 2b667a2d80
commit 5e1ac7db04
4 changed files with 24 additions and 5 deletions
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19
arch/arm/boot/dts/snowball.dts
View file

@ -101,15 +101,30 @@
};
};
// External Micro SD slot
sdi@80126000 {
status = "enabled";
arm,primecell-periphid = <0x10480180>;
max-frequency = <50000000>;
bus-width = <8>;
mmc-cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
#gpio-cells = <1>;
cd-gpios = <&gpio6 26 0x4>; // 218
cd-inverted;
status = "okay";
};
// On-board eMMC
sdi@80114000 {
status = "enabled";
arm,primecell-periphid = <0x10480180>;
max-frequency = <50000000>;
bus-width = <8>;
mmc-cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux2_reg>;
status = "okay";
};
uart@80120000 {

4
arch/arm/mach-ux500/board-mop500-sdi.c
View file

@ -80,7 +80,7 @@ static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = {
};
#endif
static struct mmci_platform_data mop500_sdi0_data = {
struct mmci_platform_data mop500_sdi0_data = {
.ios_handler = mop500_sdi0_ios_handler,
.ocr_mask = MMC_VDD_29_30,
.f_max = 50000000,
@ -227,7 +227,7 @@ static struct stedma40_chan_cfg mop500_sdi4_dma_cfg_tx = {
};
#endif
static struct mmci_platform_data mop500_sdi4_data = {
struct mmci_platform_data mop500_sdi4_data = {
.ocr_mask = MMC_VDD_29_30,
.f_max = 50000000,
.capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA |

3
arch/arm/mach-ux500/board-mop500.c
View file

@ -776,6 +776,8 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", &uart2_plat),
/* Requires DMA bindings. */
OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0", &ssp0_plat),
OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", &mop500_sdi0_data),
OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", &mop500_sdi4_data),
/* Requires clock name bindings. */
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e000, "gpio.0", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e080, "gpio.1", NULL),
@ -851,7 +853,6 @@ static void __init u8500_init_machine(void)
platform_add_devices(snowball_of_platform_devs,
ARRAY_SIZE(snowball_of_platform_devs));
snowball_sdi_init(parent);
} else if (of_machine_is_compatible("st-ericsson,hrefv60+")) {
/*
* The HREFv60 board removed a GPIO expander and routed

3
arch/arm/mach-ux500/board-mop500.h
View file

@ -9,6 +9,7 @@
/* For NOMADIK_NR_GPIO */
#include <mach/irqs.h>
#include <linux/amba/mmci.h>
/* Snowball specific GPIO assignments, this board has no GPIO expander */
#define SNOWBALL_ACCEL_INT1_GPIO 163
@ -78,6 +79,8 @@
struct device;
struct i2c_board_info;
extern struct mmci_platform_data mop500_sdi0_data;
extern struct mmci_platform_data mop500_sdi4_data;
extern void mop500_sdi_init(struct device *parent);
extern void snowball_sdi_init(struct device *parent);