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| author | David S. Miller <davem@davemloft.net> | 2010-04-03 15:49:14 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-03 15:49:14 -0700 |
| commit | 87e8b821ed8db3dab03d96cd542e29666bf210aa (patch) | |
| tree | 0027060473aafbbb125655ba027319c8a1a665fc /arch/microblaze/kernel/head.S | |
| parent | 33cd9dfa3a13e3d8e41aef225a9f98169816723b (diff) | |
| parent | 5e11611a5d22252f3f9c169a3c9377eac0c32033 (diff) | |
| download | linux-87e8b821ed8db3dab03d96cd542e29666bf210aa.tar.bz2 | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'arch/microblaze/kernel/head.S')
| -rw-r--r-- | arch/microblaze/kernel/head.S | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S index 30916193fcc7..da6a5f5dc766 100644 --- a/arch/microblaze/kernel/head.S +++ b/arch/microblaze/kernel/head.S @@ -51,6 +51,12 @@ swapper_pg_dir: .text ENTRY(_start) +#if CONFIG_KERNEL_BASE_ADDR == 0 + brai TOPHYS(real_start) + .org 0x100 +real_start: +#endif + mfs r1, rmsr andi r1, r1, ~2 mts rmsr, r1 @@ -99,8 +105,8 @@ no_fdt_arg: tophys(r4,r4) /* convert to phys address */ ori r3, r0, COMMAND_LINE_SIZE - 1 /* number of loops */ _copy_command_line: - lbu r7, r5, r6 /* r7=r5+r6 - r5 contain pointer to command line */ - sb r7, r4, r6 /* addr[r4+r6]= r7*/ + lbu r2, r5, r6 /* r2=r5+r6 - r5 contain pointer to command line */ + sb r2, r4, r6 /* addr[r4+r6]= r2*/ addik r6, r6, 1 /* increment counting */ bgtid r3, _copy_command_line /* loop for all entries */ addik r3, r3, -1 /* descrement loop */ @@ -128,7 +134,7 @@ _copy_bram: * virtual to physical. */ nop - addik r3, r0, 63 /* Invalidate all TLB entries */ + addik r3, r0, MICROBLAZE_TLB_SIZE -1 /* Invalidate all TLB entries */ _invalidate: mts rtlbx, r3 mts rtlbhi, r0 /* flush: ensure V is clear */ @@ -136,6 +142,11 @@ _invalidate: addik r3, r3, -1 /* sync */ + /* Setup the kernel PID */ + mts rpid,r0 /* Load the kernel PID */ + nop + bri 4 + /* * We should still be executing code at physical address area * RAM_BASEADDR at this point. However, kernel code is at @@ -146,10 +157,6 @@ _invalidate: addik r3,r0, CONFIG_KERNEL_START /* Load the kernel virtual address */ tophys(r4,r3) /* Load the kernel physical address */ - mts rpid,r0 /* Load the kernel PID */ - nop - bri 4 - /* * Configure and load two entries into TLB slots 0 and 1. * In case we are pinning TLBs, these are reserved in by the |