ppc4xx: 405EX: Correctly enable USB pins

This patch selects the USB data pins in the 405EX GPIO and MFC (multi
function control) registers. This is done for the AMCC Kilauea and
Makalu eval boards.

Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/board/amcc/kilauea/kilauea.c b/board/amcc/kilauea/kilauea.c
index 36e9e4a..96c0dd4 100644 (file)
--- a/board/amcc/kilauea/kilauea.c
+++ b/board/amcc/kilauea/kilauea.c
@@ -206,6 +206,13 @@ int board_early_init_f (void)
                (0x80000000 >> (28 + CFG_NAND_CS));
        mtsdr(SDR0_CUST0, val);
 
+       /*
+        * Configure PFC (Pin Function Control) registers
+        * -> Enable USB
+        */
+       val = SDR0_PFC1_USBEN | SDR0_PFC1_USBBIGEN | SDR0_PFC1_GPT_FREQ;
+       mtsdr(SDR0_PFC1, val);
+
        return 0;
 }
 

diff --git a/board/amcc/makalu/makalu.c b/board/amcc/makalu/makalu.c
index b7933a0..15e51f4 100644 (file)
--- a/board/amcc/makalu/makalu.c
+++ b/board/amcc/makalu/makalu.c
@@ -43,6 +43,8 @@ extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips  */
  */
 int board_early_init_f (void)
 {
+       u32 val;
+
        /*--------------------------------------------------------------------+
         | Interrupt controller setup for the AMCC 405EX(r) PINE evaluation board.
         +--------------------------------------------------------------------+
@@ -195,6 +197,13 @@ int board_early_init_f (void)
        udelay(100);
        gpio_write_bit(CFG_GPIO_PCIE_RST, 1);
 
+       /*
+        * Configure PFC (Pin Function Control) registers
+        * -> Enable USB
+        */
+       val = SDR0_PFC1_USBEN | SDR0_PFC1_USBBIGEN | SDR0_PFC1_GPT_FREQ;
+       mtsdr(SDR0_PFC1, val);
+
        return 0;
 }
 

diff --git a/include/configs/kilauea.h b/include/configs/kilauea.h
index 98d745c..e3f24a4 100644 (file)
--- a/include/configs/kilauea.h
+++ b/include/configs/kilauea.h
@@ -447,8 +447,8 @@
 {GPIO0_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_0}, /* GPIO11 IRQ(6)                                */      \
 {GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO12 EBC_DATA(16)  USB2_DATA(0)    */      \
 {GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO13 EBC_DATA(17)  USB2_DATA(1)    */      \
-{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_1}, /* GPIO14 EBC_DATA(18)  USB2_DATA(2)    */      \
-{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_1}, /* GPIO15 EBC_DATA(19)  USB2_DATA(3)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO14 EBC_DATA(18)  USB2_DATA(2)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO15 EBC_DATA(19)  USB2_DATA(3)    */      \
 {GPIO0_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_0}, /* GPIO16 UART0_DCD     UART1_CTS       */      \
 {GPIO0_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_0}, /* GPIO17 UART0_DSR     UART1_RTS       */      \
 {GPIO0_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_0}, /* GPIO18 UART0_CTS                     */      \

diff --git a/include/configs/makalu.h b/include/configs/makalu.h
index e04efb7..2871a6c 100644 (file)
--- a/include/configs/makalu.h
+++ b/include/configs/makalu.h
@@ -342,18 +342,18 @@
 {GPIO0_BASE, GPIO_IN,  GPIO_SEL,  GPIO_OUT_0}, /* GPIO1        EBC_DATA_PAR(1)                 */      \
 {GPIO0_BASE, GPIO_IN,  GPIO_SEL,  GPIO_OUT_0}, /* GPIO2        EBC_DATA_PAR(2)                 */      \
 {GPIO0_BASE, GPIO_IN,  GPIO_SEL,  GPIO_OUT_0}, /* GPIO3        EBC_DATA_PAR(3)                 */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO4        EBC_DATA(20)    USB2_DATA(4)    */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO5        EBC_DATA(21)    USB2_DATA(5)    */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO6        EBC_DATA(22)    USB2_DATA(6)    */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO7        EBC_DATA(23)    USB2_DATA(7)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO4        EBC_DATA(20)    USB2_DATA(4)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO5        EBC_DATA(21)    USB2_DATA(5)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO6        EBC_DATA(22)    USB2_DATA(6)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO7        EBC_DATA(23)    USB2_DATA(7)    */      \
 {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO8        CS(1)/NFCE(1)   IRQ(7)          */      \
 {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO9        CS(2)/NFCE(2)   IRQ(8)          */      \
 {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO10 CS(3)/NFCE(3) IRQ(9)          */      \
 {GPIO0_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO11 IRQ(6)                                */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO12 EBC_DATA(16)  USB2_DATA(0)    */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_0}, /* GPIO13 EBC_DATA(17)  USB2_DATA(1)    */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_1}, /* GPIO14 EBC_DATA(18)  USB2_DATA(2)    */      \
-{GPIO0_BASE, GPIO_OUT, GPIO_ALT2, GPIO_OUT_1}, /* GPIO15 EBC_DATA(19)  USB2_DATA(3)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO12 EBC_DATA(16)  USB2_DATA(0)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO13 EBC_DATA(17)  USB2_DATA(1)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO14 EBC_DATA(18)  USB2_DATA(2)    */      \
+{GPIO0_BASE, GPIO_BI,  GPIO_ALT2, GPIO_OUT_0}, /* GPIO15 EBC_DATA(19)  USB2_DATA(3)    */      \
 {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO16 UART0_DCD     UART1_CTS       */      \
 {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO17 UART0_DSR     UART1_RTS       */      \
 {GPIO0_BASE, GPIO_IN,  GPIO_ALT1, GPIO_OUT_0}, /* GPIO18 UART0_CTS                     */      \

diff --git a/include/ppc405.h b/include/ppc405.h
index e5051d4..b5ad38f 100644 (file)
--- a/include/ppc405.h
+++ b/include/ppc405.h
@@ -1574,6 +1574,19 @@
 #define   SDR0_CUST0_CHIPSELGAT_EN1   0x00000004       /* Chip Select1 Gating Enable */
 #define   SDR0_CUST0_CHIPSELGAT_EN2   0x00000002       /* Chip Select2 Gating Enable */
 #define   SDR0_CUST0_CHIPSELGAT_EN3   0x00000001       /* Chip Select3 Gating Enable */
+
+#define SDR0_PFC0              0x4100
+#define SDR0_PFC1              0x4101
+#define SDR0_PFC1_U1ME         0x02000000
+#define SDR0_PFC1_U0ME         0x00080000
+#define SDR0_PFC1_U0IM         0x00040000
+#define SDR0_PFC1_SIS          0x00020000
+#define SDR0_PFC1_DMAAEN       0x00010000
+#define SDR0_PFC1_DMADEN       0x00008000
+#define SDR0_PFC1_USBEN                0x00004000
+#define SDR0_PFC1_AHBSWAP      0x00000020
+#define SDR0_PFC1_USBBIGEN     0x00000010
+#define SDR0_PFC1_GPT_FREQ     0x0000000f
 #endif
 
 #endif /* __PPC405_H__ */