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omap2/3: Fix DEBUG_LL for omap zoom2/3

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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>
This commit is contained in:
Tony Lindgren
2010-04-30 12:57:14 -07:00
parent 96554d7077
commit a4f57b8138
6 changed files with 17 additions and 8 deletions
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4
arch/arm/mach-omap2/include/mach/debug-macro.S
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@ -88,10 +88,10 @@ omap_uart_lsr: .word 0
b 98f
44: mov \rx, #UART_OFFSET(OMAP4_UART4_BASE)
b 98f
95: mov \rx, #ZOOM_UART_BASE
95: ldr \rx, =ZOOM_UART_BASE
ldr \tmp, =omap_uart_phys
str \rx, [\tmp, #0]
mov \rx, #ZOOM_UART_VIRT
ldr \rx, =ZOOM_UART_VIRT
ldr \tmp, =omap_uart_virt
str \rx, [\tmp, #0]
mov \rx, #(UART_LSR << ZOOM_PORT_SHIFT)