diff options
| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2012-03-18 20:29:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-05-04 16:56:46 +0100 |
| commit | f67860a76f162ebcc6a2cacf3b0538d8a67d55ae (patch) | |
| tree | c7f09427e97be3a5ffc11574d99080ceb72bc9aa | |
| parent | c5102f5935503ebebad46e137d0eef68f272cc16 (diff) | |
ARM: 7363/1: DEBUG_LL: limit early mapping to the minimum
There is just no point mapping up to 512MB for a serial port.
Using a single 1MB entry is way sufficient for all users.
This will create less interference for the following debugging patch.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/head.S | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 3bf0c7f8b043..835898e7d704 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -277,10 +277,6 @@ __create_page_tables: mov r3, r3, lsl #PMD_ORDER add r0, r4, r3 - rsb r3, r3, #0x4000 @ PTRS_PER_PGD*sizeof(long) - cmp r3, #0x0800 @ limit to 512MB - movhi r3, #0x0800 - add r6, r0, r3 mov r3, r7, lsr #SECTION_SHIFT ldr r7, [r10, #PROCINFO_IO_MMUFLAGS] @ io_mmuflags orr r3, r7, r3, lsl #SECTION_SHIFT @@ -289,13 +285,10 @@ __create_page_tables: #else orr r3, r3, #PMD_SECT_XN #endif -1: str r3, [r0], #4 + str r3, [r0], #4 #ifdef CONFIG_ARM_LPAE str r7, [r0], #4 #endif - add r3, r3, #1 << SECTION_SHIFT - cmp r0, r6 - blo 1b #else /* CONFIG_DEBUG_ICEDCC || CONFIG_DEBUG_SEMIHOSTING */ /* we don't need any serial debugging mappings */ |