diff options
| author | Matt Porter <mporter@kernel.crashing.org> | 2005-07-31 22:34:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-08-01 19:14:01 -0700 |
| commit | c9cf73aee140baa425429902aaed2c758401343f (patch) | |
| tree | 7e28361e87950e7e66a453e4218745a4b0912119 /arch/ppc/kernel | |
| parent | e8be1c8e065691c332fd8e9bae70c7096a69c31d (diff) | |
[PATCH] ppc32: add 440ep support
Add PPC440EP core support. PPC440EP is a PPC440-based SoC with a classic PPC
FPU and another set of peripherals.
Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc/kernel')
| -rw-r--r-- | arch/ppc/kernel/cputable.c | 20 | ||||
| -rw-r--r-- | arch/ppc/kernel/entry.S | 1 | ||||
| -rw-r--r-- | arch/ppc/kernel/head_44x.S | 12 | ||||
| -rw-r--r-- | arch/ppc/kernel/misc.S | 1 |
4 files changed, 34 insertions, 0 deletions
diff --git a/arch/ppc/kernel/cputable.c b/arch/ppc/kernel/cputable.c index 50936cda0af..8a3d74f2531 100644 --- a/arch/ppc/kernel/cputable.c +++ b/arch/ppc/kernel/cputable.c @@ -852,6 +852,26 @@ struct cpu_spec cpu_specs[] = { #endif /* CONFIG_40x */ #ifdef CONFIG_44x + { + .pvr_mask = 0xf0000fff, + .pvr_value = 0x40000850, + .cpu_name = "440EP Rev. A", + .cpu_features = CPU_FTR_SPLIT_ID_CACHE | + CPU_FTR_USE_TB, + .cpu_user_features = COMMON_PPC, /* 440EP has an FPU */ + .icache_bsize = 32, + .dcache_bsize = 32, + }, + { + .pvr_mask = 0xf0000fff, + .pvr_value = 0x400008d3, + .cpu_name = "440EP Rev. B", + .cpu_features = CPU_FTR_SPLIT_ID_CACHE | + CPU_FTR_USE_TB, + .cpu_user_features = COMMON_PPC, /* 440EP has an FPU */ + .icache_bsize = 32, + .dcache_bsize = 32, + }, { /* 440GP Rev. B */ .pvr_mask = 0xf0000fff, .pvr_value = 0x40000440, diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S index d4df68629cc..cb83045e2ed 100644 --- a/arch/ppc/kernel/entry.S +++ b/arch/ppc/kernel/entry.S @@ -215,6 +215,7 @@ syscall_dotrace_cont: lwzx r10,r10,r0 /* Fetch system call handler [ptr] */ mtlr r10 addi r9,r1,STACK_FRAME_OVERHEAD + PPC440EP_ERR42 blrl /* Call handler */ .globl ret_from_syscall ret_from_syscall: diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S index 72ee8f33bde..69ff3a9961e 100644 --- a/arch/ppc/kernel/head_44x.S +++ b/arch/ppc/kernel/head_44x.S @@ -190,7 +190,9 @@ skpinv: addi r4,r4,1 /* Increment */ /* xlat fields */ lis r4,UART0_PHYS_IO_BASE@h /* RPN depends on SoC */ +#ifndef CONFIG_440EP ori r4,r4,0x0001 /* ERPN is 1 for second 4GB page */ +#endif /* attrib fields */ li r5,0 @@ -228,6 +230,16 @@ skpinv: addi r4,r4,1 /* Increment */ lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */ mtspr SPRN_IVPR,r4 +#ifdef CONFIG_440EP + /* Clear DAPUIB flag in CCR0 (enable APU between CPU and FPU) */ + mfspr r2,SPRN_CCR0 + lis r3,0xffef + ori r3,r3,0xffff + and r2,r2,r3 + mtspr SPRN_CCR0,r2 + isync +#endif + /* * This is where the main kernel code starts. */ diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S index c2fb85b49a1..ce71b4a0158 100644 --- a/arch/ppc/kernel/misc.S +++ b/arch/ppc/kernel/misc.S @@ -1145,6 +1145,7 @@ _GLOBAL(kernel_thread) stwu r0,-16(r1) mtlr r30 /* fn addr in lr */ mr r3,r31 /* load arg and call fn */ + PPC440EP_ERR42 blrl li r0,__NR_exit /* exit if function returns */ li r3,0 |