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authorStefan Roese <sr@denx.de>2008-03-05 12:31:53 +0100
committerStefan Roese <sr@denx.de>2008-03-15 07:28:05 +0100
commit41712b4e8c95dff23354bcd620e1f9477160c190 (patch)
treec3800ca822f1717ed06bb269689a5d6af2a6e7e3 /board/amcc/canyonlands/canyonlands.c
parent2596f5b9d353ff3e4387a3325d05740f16958038 (diff)
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ppc4xx: Add USB OHCI support to AMCC Canyonlands 460EX eval board
This patch adds USB OHCI support to the Canyonlands board port. It also enables EXT2 support. Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/amcc/canyonlands/canyonlands.c')
-rw-r--r--board/amcc/canyonlands/canyonlands.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/board/amcc/canyonlands/canyonlands.c b/board/amcc/canyonlands/canyonlands.c
index 3551429..36779f5 100644
--- a/board/amcc/canyonlands/canyonlands.c
+++ b/board/amcc/canyonlands/canyonlands.c
@@ -26,6 +26,7 @@
#include <asm/io.h>
#include <asm/mmu.h>
#include <asm/4xx_pcie.h>
+#include <asm/gpio.h>
extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
@@ -100,6 +101,19 @@ int board_early_init_f(void)
mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
+ /* Setup PLB4-AHB bridge based on the system address map */
+ mtdcr(AHB_TOP, 0x8000004B);
+ mtdcr(AHB_BOT, 0x8000004B);
+
+ /*
+ * Configure USB-STP pins as alternate and not GPIO
+ * It seems to be neccessary to configure the STP pins as GPIO
+ * input at powerup (perhaps while USB reset is asserted). So
+ * we configure those pins to their "real" function now.
+ */
+ gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
+ gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
+
return 0;
}