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| author | Mark Brown <broonie@kernel.org> | 2014-11-26 20:37:57 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-11-26 20:37:57 +0000 |
| commit | cf2394f70cf7774a107fbaa1ef5010db4bd69baa (patch) | |
| tree | e79e3e479d04213a67ecd47b31c7db648b0313c2 /arch/arm/mach-socfpga/headsmp.S | |
| parent | 45fc84c668ba6cc08cbae74042be838bf9283d98 (diff) | |
| parent | 206c5f60a3d902bc4b56dab2de3e88de5eb06108 (diff) | |
| download | linux-cf2394f70cf7774a107fbaa1ef5010db4bd69baa.tar.bz2 | |
Merge tag 'v3.18-rc4' into regulator-max77802
Linux 3.18-rc4
Diffstat (limited to 'arch/arm/mach-socfpga/headsmp.S')
| -rw-r--r-- | arch/arm/mach-socfpga/headsmp.S | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/arch/arm/mach-socfpga/headsmp.S b/arch/arm/mach-socfpga/headsmp.S index 95c115d8b5ee..f65ea0af4af3 100644 --- a/arch/arm/mach-socfpga/headsmp.S +++ b/arch/arm/mach-socfpga/headsmp.S @@ -9,21 +9,26 @@ */ #include <linux/linkage.h> #include <linux/init.h> +#include <asm/memory.h> .arch armv7-a ENTRY(secondary_trampoline) - movw r2, #:lower16:cpu1start_addr - movt r2, #:upper16:cpu1start_addr - - /* The socfpga VT cannot handle a 0xC0000000 page offset when loading - the cpu1start_addr, we bit clear it. Tested on HW and VT. */ - bic r2, r2, #0x40000000 - - ldr r0, [r2] - ldr r1, [r0] - bx r1 + /* CPU1 will always fetch from 0x0 when it is brought out of reset. + * Thus, we can just subtract the PAGE_OFFSET to get the physical + * address of &cpu1start_addr. This would not work for platforms + * where the physical memory does not start at 0x0. + */ + adr r0, 1f + ldmia r0, {r1, r2} + sub r2, r2, #PAGE_OFFSET + ldr r3, [r2] + ldr r4, [r3] + bx r4 + .align +1: .long . + .long socfpga_cpu1start_addr ENTRY(secondary_trampoline_end) ENTRY(socfpga_secondary_startup) |