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>
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 @@
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 @@
.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 @@
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)