gpio: Add support for microblaze xilinx GPIO

[J-u-boot.git] / board / xilinx / microblaze-generic / microblaze-generic.c

diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c
index befbb3a3e59afb4e1c4a1326da2fdeeb835938b3..2f5f20ea32decae9b1a2f34508a05bf16301f9d3 100644 (file)
--- a/board/xilinx/microblaze-generic/microblaze-generic.c
+++ b/board/xilinx/microblaze-generic/microblaze-generic.c
@@ -31,12 +31,17 @@
 #include <asm/processor.h>
 #include <asm/microblaze_intc.h>
 #include <asm/asm.h>
+#include <asm/gpio.h>
+
+#ifdef CONFIG_XILINX_GPIO
+static int reset_pin = -1;
+#endif
 
 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-#ifdef CONFIG_SYS_GPIO_0
-       *((unsigned long *)(CONFIG_SYS_GPIO_0_ADDR)) =
-           ++(*((unsigned long *)(CONFIG_SYS_GPIO_0_ADDR)));
+#ifdef CONFIG_XILINX_GPIO
+       if (reset_pin != -1)
+               gpio_direction_output(reset_pin, 1);
 #endif
 
 #ifdef CONFIG_XILINX_TB_WATCHDOG
@@ -52,8 +57,10 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 int gpio_init (void)
 {
-#ifdef CONFIG_SYS_GPIO_0
-       *((unsigned long *)(CONFIG_SYS_GPIO_0_ADDR)) = 0xFFFFFFFF;
+#ifdef CONFIG_XILINX_GPIO
+       reset_pin = gpio_alloc(CONFIG_SYS_GPIO_0_ADDR, "reset", 1);
+       if (reset_pin != -1)
+               gpio_request(reset_pin, "reset_pin");
 #endif
        return 0;
 }