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powerpc: Add early debug for WSP platforms

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Signed-off-by: Jack Miller <jack@codezen.org>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Jack Miller
2011-04-14 22:32:08 +00:00
committed by Benjamin Herrenschmidt
parent a1d0d98daf
commit a0496d450a
6 changed files with 85 additions and 0 deletions
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9
arch/powerpc/include/asm/reg_a2.h
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@@ -110,6 +110,15 @@
#define TLB1_UR ASM_CONST(0x0000000000000002)
#define TLB1_SR ASM_CONST(0x0000000000000001)
#ifdef CONFIG_PPC_EARLY_DEBUG_WSP
#define WSP_UART_PHYS 0xffc000c000
/* This needs to be careful chosen to hit a !0 congruence class
* in the TLB since we bolt it in way 3, which is already occupied
* by our linear mapping primary bolted entry in CC 0.
*/
#define WSP_UART_VIRT 0xf000000000001000
#endif
/* A2 erativax attributes definitions */
#define ERATIVAX_RS_IS_ALL 0x000
#define ERATIVAX_RS_IS_TID 0x040