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authorJack Miller <jack@codezen.org>2011-04-14 22:32:08 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-06 13:32:41 +1000
commita0496d450ab8c17f6c4d86979b1f6ba486fe9365 (patch)
treeaccb4fa5d2695770a1c6992f7437df57e9f14868 /arch/powerpc/include
parenta1d0d98daf6ce580d017a43b09fe30a375cde3e8 (diff)
powerpc: Add early debug for WSP platforms
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>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/reg_a2.h9
-rw-r--r--arch/powerpc/include/asm/udbg.h1
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/reg_a2.h b/arch/powerpc/include/asm/reg_a2.h
index 3ba9c6f096fc..3d52a1132f3d 100644
--- a/arch/powerpc/include/asm/reg_a2.h
+++ b/arch/powerpc/include/asm/reg_a2.h
@@ -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
diff --git a/arch/powerpc/include/asm/udbg.h b/arch/powerpc/include/asm/udbg.h
index 11ae699135ba..58580e94a2bb 100644
--- a/arch/powerpc/include/asm/udbg.h
+++ b/arch/powerpc/include/asm/udbg.h
@@ -52,6 +52,7 @@ extern void __init udbg_init_44x_as1(void);
extern void __init udbg_init_40x_realmode(void);
extern void __init udbg_init_cpm(void);
extern void __init udbg_init_usbgecko(void);
+extern void __init udbg_init_wsp(void);
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_UDBG_H */