ARM: at91: do not pin mux the UARTs in init_early

There is no need to pinmux the UART so early in the kernel.
Move it to the board init.

This will also allow to finally move the gpio driver to platform device/driver.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

1 files changed, 18 insertions, 19 deletions

diff --git a/arch/arm/mach-at91/board-cpuat91.c b/arch/arm/mach-at91/board-cpuat91.c
index 76c62ed4183..895cf2dba61 100644
--- a/arch/arm/mach-at91/board-cpuat91.c
+++ b/arch/arm/mach-at91/board-cpuat91.c
@@ -59,25 +59,6 @@ static void __init cpuat91_init_early(void)
 
         /* Initialize processor: 18.432 MHz crystal */
         at91_initialize(18432000);
-
-        /* DBGU on ttyS0. (Rx & Tx only) */
-        at91_register_uart(0, 0, 0);
-
-        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
-        at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
-                ATMEL_UART_RTS);
-
-        /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
-        at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
-                ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
-                ATMEL_UART_DCD | ATMEL_UART_RI);
-
-        /* USART2 on ttyS3 (Rx, Tx) */
-        at91_register_uart(AT91RM9200_ID_US2, 3, 0);
-
-        /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
-        at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
-                ATMEL_UART_RTS);
 }
 
 static struct macb_platform_data __initdata cpuat91_eth_data = {
@@ -158,6 +139,24 @@ static struct platform_device *platform_devices[] __initdata = {
 static void __init cpuat91_board_init(void)
 {
         /* Serial */
+        /* DBGU on ttyS0. (Rx & Tx only) */
+        at91_register_uart(0, 0, 0);
+
+        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS) */
+        at91_register_uart(AT91RM9200_ID_US0, 1, ATMEL_UART_CTS |
+                ATMEL_UART_RTS);
+
+        /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+        at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS |
+                ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
+                ATMEL_UART_DCD | ATMEL_UART_RI);
+
+        /* USART2 on ttyS3 (Rx, Tx) */
+        at91_register_uart(AT91RM9200_ID_US2, 3, 0);
+
+        /* USART3 on ttyS4 (Rx, Tx, CTS, RTS) */
+        at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_CTS |
+                ATMEL_UART_RTS);
         at91_add_device_serial();
         /* LEDs. */
         at91_gpio_leds(cpuat91_leds, ARRAY_SIZE(cpuat91_leds));