[U-Boot-Users] [PATCH 9/9] ppc4xx: Add USB OHCI support to AMCC Canyonlands 460EX eval board

Stefan Roese
2008-03-11T10:06:12Z

This patch adds USB OHCI support to the Canyonlands board port. It also
enables EXT2 support.

Signed-off-by: Stefan Roese <sr@denx.de>
---
board/amcc/canyonlands/canyonlands.c | 14 +++++++
board/amcc/canyonlands/init.S | 3 +
include/configs/canyonlands.h | 68 +++++++++++++++++++++++-----------
include/ppc440.h | 3 +
4 files changed, 66 insertions(+), 22 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;
}

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 @@ tlbtab:
/* 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)
diff --git a/include/configs/canyonlands.h b/include/configs/canyonlands.h
index 0e6484f..55390ca 100644
--- a/include/configs/canyonlands.h
+++ b/include/configs/canyonlands.h
@@ -79,6 +79,8 @@

#define CFG_PERIPHERAL_BASE 0xEF600000 /* internal peripherals */

+#define CFG_AHB_BASE 0xE2000000 /* internal AHB peripherals */
+
#define CFG_MONITOR_BASE TEXT_BASE
#define CFG_MONITOR_LEN (384 * 1024) /* Reserve 384 kB for Monitor */
#define CFG_MALLOC_LEN (512 * 1024) /* Reserve 512 kB for malloc()*/
@@ -270,6 +272,21 @@

#define CFG_RX_ETH_BUFFER 32 /* Number of ethernet rx buffers & descriptors */

+/*-----------------------------------------------------------------------
+ * USB-OHCI
+ *----------------------------------------------------------------------*/
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_USB_STORAGE
+#undef CFG_OHCI_BE_CONTROLLER /* 460EX has little endian descriptors */
+#define CFG_OHCI_SWAP_REG_ACCESS /* 460EX has little endian register */
+#define CFG_OHCI_USE_NPS /* force NoPowerSwitching mode */
+#define CFG_USB_OHCI_REGS_BASE (CFG_AHB_BASE | 0xd0000)
+#define CFG_USB_OHCI_SLOT_NAME "ppc440"
+#define CFG_USB_OHCI_MAX_ROOT_PORTS 15
+
+/*-----------------------------------------------------------------------
+ * Default environment
+ *----------------------------------------------------------------------*/
#define CONFIG_PREBOOT "echo;" \
"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
"echo"
@@ -344,6 +361,7 @@
#define CONFIG_CMD_DIAG
#define CONFIG_CMD_EEPROM
#define CONFIG_CMD_ELF
+#define CONFIG_CMD_EXT2
#define CONFIG_CMD_FAT
#define CONFIG_CMD_I2C
#define CONFIG_CMD_IRQ
@@ -355,6 +373,12 @@
#define CONFIG_CMD_PING
#define CONFIG_CMD_REGINFO
#define CONFIG_CMD_SDRAM
+#define CONFIG_CMD_USB
+
+/* Partitions */
+#define CONFIG_MAC_PARTITION
+#define CONFIG_DOS_PARTITION
+#define CONFIG_ISO_PARTITION

/*-----------------------------------------------------------------------
* Miscellaneous configurable options
@@ -466,28 +490,28 @@
#define CFG_4xx_GPIO_TABLE { /* Out GPIO Alternate1 Alternate2 Alternate3 */ \
{ \
/* GPIO Core 0 */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO0 GMC1TxD(0) USB2HostD(0) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO1 GMC1TxD(1) USB2HostD(1) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO2 GMC1TxD(2) USB2HostD(2) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO3 GMC1TxD(3) USB2HostD(3) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO4 GMC1TxD(4) USB2HostD(4) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO5 GMC1TxD(5) USB2HostD(5) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO6 GMC1TxD(6) USB2HostD(6) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO7 GMC1TxD(7) USB2HostD(7) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO8 GMC1RxD(0) USB2OTGD(0) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO9 GMC1RxD(1) USB2OTGD(1) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO10 GMC1RxD(2) USB2OTGD(2) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO11 GMC1RxD(3) USB2OTGD(3) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO12 GMC1RxD(4) USB2OTGD(4) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO13 GMC1RxD(5) USB2OTGD(5) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO14 GMC1RxD(6) USB2OTGD(6) */ \
-{GPIO0_BASE, GPIO_BI , GPIO_ALT2, GPIO_OUT_0}, /* GPIO15 GMC1RxD(7) USB2OTGD(7) */ \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO16 GMC1TxER USB2HostStop */ \
-{GPIO0_BASE, GPIO_IN , GPIO_ALT2, GPIO_OUT_0}, /* GPIO17 GMC1CD USB2HostNext */ \
-{GPIO0_BASE, GPIO_IN , GPIO_ALT2, GPIO_OUT_0}, /* GPIO18 GMC1RxER USB2HostDir */ \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO19 GMC1TxEN USB2OTGStop */ \
-{GPIO0_BASE, GPIO_IN , GPIO_ALT2, GPIO_OUT_0}, /* GPIO20 GMC1CRS USB2OTGNext */ \
-{GPIO0_BASE, GPIO_IN , GPIO_ALT2, GPIO_OUT_0}, /* GPIO21 GMC1RxDV USB2OTGDir */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO0 GMC1TxD(0) USB2HostD(0) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO1 GMC1TxD(1) USB2HostD(1) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO2 GMC1TxD(2) USB2HostD(2) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO3 GMC1TxD(3) USB2HostD(3) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO4 GMC1TxD(4) USB2HostD(4) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO5 GMC1TxD(5) USB2HostD(5) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO6 GMC1TxD(6) USB2HostD(6) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO7 GMC1TxD(7) USB2HostD(7) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO8 GMC1RxD(0) USB2OTGD(0) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO9 GMC1RxD(1) USB2OTGD(1) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO10 GMC1RxD(2) USB2OTGD(2) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO11 GMC1RxD(3) USB2OTGD(3) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO12 GMC1RxD(4) USB2OTGD(4) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO13 GMC1RxD(5) USB2OTGD(5) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO14 GMC1RxD(6) USB2OTGD(6) */ \
+{GPIO0_BASE, GPIO_BI , GPIO_ALT1, GPIO_OUT_0}, /* GPIO15 GMC1RxD(7) USB2OTGD(7) */ \
+{GPIO0_BASE, GPIO_IN , GPIO_SEL, GPIO_OUT_0}, /* GPIO16 GMC1TxER USB2HostStop */ \
+{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO17 GMC1CD USB2HostNext */ \
+{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO18 GMC1RxER USB2HostDir */ \
+{GPIO0_BASE, GPIO_IN, GPIO_SEL, GPIO_OUT_0}, /* GPIO19 GMC1TxEN USB2OTGStop */ \
+{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO20 GMC1CRS USB2OTGNext */ \
+{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO21 GMC1RxDV USB2OTGDir */ \
{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO22 NFRDY */ \
{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO23 NFREN */ \
{GPIO0_BASE, GPIO_IN , GPIO_ALT1, GPIO_OUT_0}, /* GPIO24 NFWEN */ \
diff --git a/include/ppc440.h b/include/ppc440.h
index cf29fe7..80dd332 100644
--- a/include/ppc440.h
+++ b/include/ppc440.h
@@ -3355,6 +3355,9 @@
#define SDR0_DDR0_DDRM_DECODE(n) ((((unsigned long)(n))>>29)&0x03)
#define SDR0_DDR0_TUNE_ENCODE(n) ((((unsigned long)(n))&0x2FF)<<0)
#define SDR0_DDR0_TUNE_DECODE(n) ((((unsigned long)(n))>>0)&0x2FF)
+
+#define AHB_TOP 0xA4
+#define AHB_BOT 0xA5
#endif /* CONFIG_460EX || CONFIG_460GT */

#define SDR0_SDCS_SDD (0x80000000 >> 31)
--
1.5.4.4