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| author | Arnd Bergmann <arnd@arndb.de> | 2011-10-31 23:11:46 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-11-01 00:25:01 +0100 |
| commit | 5725aeae5ff2e39f3815bbef788ee326c9afea2c (patch) | |
| tree | 4f32f936ba18384d48ab1e537b787a8ce666263f /arch/arm/mach-omap1/include/mach/debug-macro.S | |
| parent | 43872fa788060eef91ae437957e0a5e39f1c56fd (diff) | |
| parent | 0cdc8b921d68817b687755b4f6ae20cd8ff1d026 (diff) | |
| download | linux-5725aeae5ff2e39f3815bbef788ee326c9afea2c.tar.bz2 | |
Merge branch 'depends/rmk/memory_h' into next/fixes
Fix up all conflicts between the memory.h cleanup and bug fixes.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-omap1/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-omap1/include/mach/debug-macro.S | 48 |
1 files changed, 21 insertions, 27 deletions
diff --git a/arch/arm/mach-omap1/include/mach/debug-macro.S b/arch/arm/mach-omap1/include/mach/debug-macro.S index 62856044eb63..2b36a281dc84 100644 --- a/arch/arm/mach-omap1/include/mach/debug-macro.S +++ b/arch/arm/mach-omap1/include/mach/debug-macro.S @@ -13,13 +13,8 @@ #include <linux/serial_reg.h> -#include <asm/memory.h> - #include <plat/serial.h> -#define omap_uart_v2p(x) ((x) - PAGE_OFFSET + PLAT_PHYS_OFFSET) -#define omap_uart_p2v(x) ((x) - PLAT_PHYS_OFFSET + PAGE_OFFSET) - .pushsection .data omap_uart_phys: .word 0x0 omap_uart_virt: .word 0x0 @@ -31,26 +26,24 @@ omap_uart_virt: .word 0x0 * the desired UART phys and virt addresses temporarily into * the omap_uart_phys and omap_uart_virt above. */ - .macro addruart, rp, rv + .macro addruart, rp, rv, tmp /* Use omap_uart_phys/virt if already configured */ -9: mrc p15, 0, \rp, c1, c0 - tst \rp, #1 @ MMU enabled? - ldreq \rp, =omap_uart_v2p(omap_uart_phys) @ MMU disabled - ldrne \rp, =omap_uart_phys @ MMU enabled - add \rv, \rp, #4 @ omap_uart_virt - ldr \rp, [\rp, #0] - ldr \rv, [\rv, #0] +9: adr \rp, 99f @ get effective addr of 99f + ldr \rv, [\rp] @ get absolute addr of 99f + sub \rv, \rv, \rp @ offset between the two + ldr \rp, [\rp, #4] @ abs addr of omap_uart_phys + sub \tmp, \rp, \rv @ make it effective + ldr \rp, [\tmp, #0] @ omap_uart_phys + ldr \rv, [\tmp, #4] @ omap_uart_virt cmp \rp, #0 @ is port configured? cmpne \rv, #0 - bne 99f @ already configured + bne 100f @ already configured /* Check the debug UART configuration set in uncompress.h */ - mrc p15, 0, \rp, c1, c0 - tst \rp, #1 @ MMU enabled? - ldreq \rp, =OMAP_UART_INFO @ MMU not enabled - ldrne \rp, =omap_uart_p2v(OMAP_UART_INFO) @ MMU enabled - ldr \rp, [\rp, #0] + and \rp, pc, #0xff000000 + ldr \rv, =OMAP_UART_INFO_OFS + ldr \rp, [\rp, \rv] /* Select the UART to use based on the UART1 scratchpad value */ 10: cmp \rp, #0 @ no port configured? @@ -74,17 +67,18 @@ omap_uart_virt: .word 0x0 /* Store both phys and virt address for the uart */ 98: add \rp, \rp, #0xff000000 @ phys base - mrc p15, 0, \rv, c1, c0 - tst \rv, #1 @ MMU enabled? - ldreq \rv, =omap_uart_v2p(omap_uart_phys) @ MMU disabled - ldrne \rv, =omap_uart_phys @ MMU enabled - str \rp, [\rv, #0] + str \rp, [\tmp, #0] @ omap_uart_phys sub \rp, \rp, #0xff000000 @ phys base add \rp, \rp, #0xfe000000 @ virt base - add \rv, \rv, #4 @ omap_uart_lsr - str \rp, [\rv, #0] + str \rp, [\tmp, #4] @ omap_uart_virt b 9b -99: + + .align +99: .word . + .word omap_uart_phys + .ltorg + +100: .endm .macro senduart,rd,rx |