omap2/3: Fix DEBUG_LL for omap zoom2/3
Zoom2 and 3 have UARTs only on the external debug board.
GPMC needs to be mapped early to use it for DEBUG_LL.
Additionally, 0xfb000000 overlaps with other areas, so
use 0xfa400000 for the virtual address instead.
Note that with the pending serial.c patches you need to
set console=ttyS0,115200n8 as it will be the only UART
mapped. To use DEBUG_LL, you need to pass also earlyprintk
in cmdline.
Cc: Allen Pais <allen.pais@ti.com>
Acked-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 87f676a..3cfb425 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -166,6 +166,15 @@
.length = L4_EMU_34XX_SIZE,
.type = MT_DEVICE
},
+#if defined(CONFIG_DEBUG_LL) && \
+ (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
+ {
+ .virtual = ZOOM_UART_VIRT,
+ .pfn = __phys_to_pfn(ZOOM_UART_BASE),
+ .length = SZ_1M,
+ .type = MT_DEVICE
+ },
+#endif
};
#endif
#ifdef CONFIG_ARCH_OMAP4