TI816X: Add low level debug support

This patch adds support for low level debugging on TI816X boards. Currently the
support for UART3 console on TI816X EVM is added.

Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S
index 6a4d4136002e..e1b0f17b0927 100644
--- a/arch/arm/mach-omap2/include/mach/debug-macro.S
+++ b/arch/arm/mach-omap2/include/mach/debug-macro.S
@@ -69,6 +69,12 @@ omap_uart_lsr:	.word	0
                 beq     34f                     @ configure OMAP3UART4
                 cmp     \rp, #OMAP4UART4        @ only on 44xx
                 beq     44f                     @ configure OMAP4UART4
+                cmp     \rp, #TI816XUART1       @ ti816x UART offsets different
+                beq     81f                     @ configure UART1
+                cmp     \rp, #TI816XUART2       @ ti816x UART offsets different
+                beq     82f                     @ configure UART2
+                cmp     \rp, #TI816XUART3       @ ti816x UART offsets different
+                beq     83f                     @ configure UART3
                 cmp     \rp, #ZOOM_UART         @ only on zoom2/3
                 beq     95f                     @ configure ZOOM_UART
 
@@ -91,6 +97,12 @@ omap_uart_lsr:	.word	0
                 b       98f
 44:             mov     \rp, #UART_OFFSET(OMAP4_UART4_BASE)
                 b       98f
+81:             mov     \rp, #UART_OFFSET(TI816X_UART1_BASE)
+                b       98f
+82:             mov     \rp, #UART_OFFSET(TI816X_UART2_BASE)
+                b       98f
+83:             mov     \rp, #UART_OFFSET(TI816X_UART3_BASE)
+                b       98f
 95:             ldr     \rp, =ZOOM_UART_BASE
                 mrc     p15, 0, \rv, c1, c0
                 tst     \rv, #1                 @ MMU enabled?