OMAP3: serial: Fix uart4 handling for 3630

This patch makes the following:
 - Adds missing wakeup padding register handling.
 - Fixes a hardcode to use PER module ONLY on UART3.

Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 72b5c9896390..0bcc9df0c034 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -487,7 +487,7 @@ static void omap_uart_idle_init(struct omap_uart_state *uart)
         omap_uart_smart_idle_enable(uart, 0);
 
         if (cpu_is_omap34xx()) {
-                u32 mod = (uart->num == 2) ? OMAP3430_PER_MOD : CORE_MOD;
+                u32 mod = (uart->num > 1) ? OMAP3430_PER_MOD : CORE_MOD;
                 u32 wk_mask = 0;
                 u32 padconf = 0;
 
@@ -506,6 +506,10 @@ static void omap_uart_idle_init(struct omap_uart_state *uart)
                         wk_mask = OMAP3430_ST_UART3_MASK;
                         padconf = 0x19e;
                         break;
+                case 3:
+                        wk_mask = OMAP3630_ST_UART4_MASK;
+                        padconf = 0x0d2;
+                        break;
                 }
                 uart->wk_mask = wk_mask;
                 uart->padconf = padconf;