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>
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 @@
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;
}
diff --git a/board/amcc/canyonlands/init.S b/board/amcc/canyonlands/init.S
index b7cac23..bd4cab5 100644
--- a/board/amcc/canyonlands/init.S
+++ b/board/amcc/canyonlands/init.S
@@ -88,6 +88,9 @@
/* TLB-entry for Local Configuration registers => peripherals */
tlbentry(CFG_LOCAL_CONF_REGS, SZ_16M, CFG_LOCAL_CONF_REGS, 4, AC_R|AC_W|AC_X|SA_G|SA_I)
+ /* AHB: Internal USB Peripherals (USB, SATA) */
+ tlbentry(CFG_AHB_BASE, SZ_1M, 0xbff00000, 4, AC_R|AC_W|AC_X|SA_G|SA_I)
+
tlbtab_end
#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)