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, 10 insertions, 11 deletions

diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
index 05f846784ce4..3d615532ae5c 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -65,17 +65,6 @@ static void __init ek_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, DTR, DSR, DCD, RI) */
-        at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
-                           | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
-                           | ATMEL_UART_RI);
-
-        /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
-        at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 }
 
 /*
@@ -369,6 +358,16 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = {
 static void __init ek_board_init(void)
 {
         /* Serial */
+        /* DBGU on ttyS0. (Rx & Tx only) */
+        at91_register_uart(0, 0, 0);
+
+        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+        at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
+                           | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
+                           | ATMEL_UART_RI);
+
+        /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
+        at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
         at91_add_device_serial();
         /* USB Host */
         at91_add_device_usbh(&ek_usbh_data);