diff options
| author | Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> | 2010-10-27 14:40:55 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-11-24 09:57:16 +0100 |
| commit | c2932bf47001697fc48e89f1d136532703ed4779 (patch) | |
| tree | ef58c1fa9596da632ae8080f9757b4acd9cbb4b1 /arch/arm | |
| parent | c6e34a4cbe8d4e126c3f603d11cce6979952cbb1 (diff) | |
| download | kernel_samsung_smdk4412-c2932bf47001697fc48e89f1d136532703ed4779.zip kernel_samsung_smdk4412-c2932bf47001697fc48e89f1d136532703ed4779.tar.gz kernel_samsung_smdk4412-c2932bf47001697fc48e89f1d136532703ed4779.tar.bz2 | |
efikamx: add reset
The efikamx board is using a gpio to reset the board so add support
for it
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_efikamx.c | 24 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/common.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/system.c | 8 |
3 files changed, 33 insertions, 1 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index f84452f..4b2718b 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -56,6 +56,10 @@ #define EFIKAMX_SPI_CS0 (3*32 + 24) #define EFIKAMX_SPI_CS1 (3*32 + 25) +/* board 1.1 doesn't have same reset gpio */ +#define EFIKAMX_RESET1_1 (2*32 + 2) +#define EFIKAMX_RESET (0*32 + 4) + /* the pci ids pin have pull up. they're driven low according to board id */ #define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) #define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) @@ -110,6 +114,10 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { MX51_PAD_CSPI1_SS1__GPIO_4_25, MX51_PAD_CSPI1_RDY__ECSPI1_RDY, MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, + + /* reset */ + MX51_PAD_DI1_PIN13__GPIO_3_2, + MX51_PAD_GPIO_1_4__GPIO_1_4, }; /* Serial ports */ @@ -296,6 +304,14 @@ static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = { .num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs), }; +void mx51_efikamx_reset(void) +{ + if (system_rev == 0x11) + gpio_direction_output(EFIKAMX_RESET1_1, 0); + else + gpio_direction_output(EFIKAMX_RESET, 0); +} + static void __init mxc_board_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads, @@ -317,6 +333,14 @@ static void __init mxc_board_init(void) spi_register_board_info(mx51_efikamx_spi_board_info, ARRAY_SIZE(mx51_efikamx_spi_board_info)); imx51_add_ecspi(0, &mx51_efikamx_spi_pdata); + + if (system_rev == 0x11) { + gpio_request(EFIKAMX_RESET1_1, "reset"); + gpio_direction_output(EFIKAMX_RESET1_1, 1); + } else { + gpio_request(EFIKAMX_RESET, "reset"); + gpio_direction_output(EFIKAMX_RESET, 1); + } } static void __init mx51_efikamx_timer_init(void) diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 7a1e1f8..05676fb 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -50,5 +50,5 @@ extern void mxc_arch_reset_init(void __iomem *); extern void mxc91231_power_off(void); extern void mxc91231_arch_reset(int, const char *); extern void mxc91231_prepare_idle(void); - +extern void mx51_efikamx_reset(void); #endif diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c index 925bce4..c3972c5 100644 --- a/arch/arm/plat-mxc/system.c +++ b/arch/arm/plat-mxc/system.c @@ -26,6 +26,7 @@ #include <mach/common.h> #include <asm/proc-fns.h> #include <asm/system.h> +#include <asm/mach-types.h> static void __iomem *wdog_base; @@ -42,6 +43,13 @@ void arch_reset(char mode, const char *cmd) return; } #endif +#ifdef CONFIG_MACH_MX51_EFIKAMX + if (machine_is_mx51_efikamx()) { + mx51_efikamx_reset(); + return; + } +#endif + if (cpu_is_mx1()) { wcr_enable = (1 << 0); } else { |