OMAP3: twister: add support to boot Linux from SPL
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Tom Rini <tom.rini@gmail.com>
CC: Wolfgang Denk <wd@denx.de>
CC: Simon Schwarz <simonschwarzcor@gmail.com>
diff --git a/board/technexion/twister/twister.c b/board/technexion/twister/twister.c
index 50c70ab..b927586 100644
--- a/board/technexion/twister/twister.c
+++ b/board/technexion/twister/twister.c
@@ -136,3 +136,26 @@
return omap_mmc_init(0);
}
#endif
+
+#ifdef CONFIG_SPL_OS_BOOT
+/*
+ * Do board specific preperation before SPL
+ * Linux boot
+ */
+void spl_board_prepare_for_linux(void)
+{
+ /* init cs for extern lan */
+ enable_gpmc_cs_config(gpmc_smc911, &gpmc_cfg->cs[5],
+ CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
+}
+int spl_start_uboot(void)
+{
+ int val = 0;
+ if (!gpio_request(CONFIG_SPL_OS_BOOT_KEY, "U-Boot key")) {
+ gpio_direction_input(CONFIG_SPL_OS_BOOT_KEY);
+ val = gpio_get_value(CONFIG_SPL_OS_BOOT_KEY);
+ gpio_free(CONFIG_SPL_OS_BOOT_KEY);
+ }
+ return val;
+}
+#endif