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-rw-r--r--arch/arm/include/debug/vexpress.S11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm/include/debug/vexpress.S b/arch/arm/include/debug/vexpress.S
index 9f509f55d078..dc8e882a6257 100644
--- a/arch/arm/include/debug/vexpress.S
+++ b/arch/arm/include/debug/vexpress.S
@@ -21,14 +21,17 @@
#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
.macro addruart,rp,rv,tmp
+ .arch armv7-a
@ Make an educated guess regarding the memory map:
- @ - the original A9 core tile, which has MPCore peripherals
- @ located at 0x1e000000, should use UART at 0x10009000
+ @ - the original A9 core tile (based on ARM Cortex-A9 r0p1)
+ @ should use UART at 0x10009000
@ - all other (RS1 complaint) tiles use UART mapped
@ at 0x1c090000
- mrc p15, 4, \tmp, c15, c0, 0
- cmp \tmp, #0x1e000000
+ mrc p15, 0, \rp, c0, c0, 0
+ movw \rv, #0xc091
+ movt \rv, #0x410f
+ cmp \rp, \rv
@ Original memory map
moveq \rp, #DEBUG_LL_UART_OFFSET
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