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Diffstat (limited to 'arch/arm/mach-davinci/include/mach/debug-macro.S')
-rw-r--r--arch/arm/mach-davinci/include/mach/debug-macro.S50
1 files changed, 39 insertions, 11 deletions
diff --git a/arch/arm/mach-davinci/include/mach/debug-macro.S b/arch/arm/mach-davinci/include/mach/debug-macro.S
index 3cd93a801d9b..f761dfdb8689 100644
--- a/arch/arm/mach-davinci/include/mach/debug-macro.S
+++ b/arch/arm/mach-davinci/include/mach/debug-macro.S
@@ -17,22 +17,50 @@
*/
#include <linux/serial_reg.h>
+
+#include <asm/memory.h>
+
+#include <mach/serial.h>
+
#define UART_SHIFT 2
+ .pushsection .data
+davinci_uart_phys: .word 0
+davinci_uart_virt: .word 0
+ .popsection
+
.macro addruart, rx, tmp
+
+ /* Use davinci_uart_phys/virt if already configured */
+10: mrc p15, 0, \rx, c1, c0
+ tst \rx, #1 @ MMU enabled?
+ ldreq \rx, =__virt_to_phys(davinci_uart_phys)
+ ldrne \rx, =davinci_uart_virt
+ ldr \rx, [\rx]
+ cmp \rx, #0 @ is port configured?
+ bne 99f @ already configured
+
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
- moveq \rx, #0x01000000 @ physical base address
- movne \rx, #0xfe000000 @ virtual base
-#if defined(CONFIG_ARCH_DAVINCI_DA8XX) && defined(CONFIG_ARCH_DAVINCI_DMx)
-#error Cannot enable DaVinci and DA8XX platforms concurrently
-#elif defined(CONFIG_MACH_DAVINCI_DA830_EVM) || \
- defined(CONFIG_MACH_DAVINCI_DA850_EVM)
- orr \rx, \rx, #0x00d00000 @ physical base address
- orr \rx, \rx, #0x0000d000 @ of UART 2
-#else
- orr \rx, \rx, #0x00c20000 @ UART 0
-#endif
+
+ /* Copy uart phys address from decompressor uart info */
+ ldreq \tmp, =__virt_to_phys(davinci_uart_phys)
+ ldrne \tmp, =davinci_uart_phys
+ ldreq \rx, =DAVINCI_UART_INFO
+ ldrne \rx, =__phys_to_virt(DAVINCI_UART_INFO)
+ ldr \rx, [\rx, #0]
+ str \rx, [\tmp]
+
+ /* Copy uart virt address from decompressor uart info */
+ ldreq \tmp, =__virt_to_phys(davinci_uart_virt)
+ ldrne \tmp, =davinci_uart_virt
+ ldreq \rx, =DAVINCI_UART_INFO
+ ldrne \rx, =__phys_to_virt(DAVINCI_UART_INFO)
+ ldr \rx, [\rx, #4]
+ str \rx, [\tmp]
+
+ b 10b
+99:
.endm
.macro senduart,rd,rx