diff options
| author | York Sun <yorksun@freescale.com> | 2012-10-08 07:44:30 +0000 |
|---|---|---|
| committer | Andy Fleming <afleming@freescale.com> | 2012-10-22 14:31:32 -0500 |
| commit | ffd06e0231ac3fd0c5810f39f6e23527948df1c7 (patch) | |
| tree | 7d648c2c312b9cc7a75c0350101aacc67afca399 /arch/powerpc/cpu/mpc85xx/fdt.c | |
| parent | 3f0997b3255c1498ac92453aa3a7a1cc95914dfd (diff) | |
powerpc/mpc85xx: Rewrite spin table to comply with ePAPR v1.1
Move spin table to cached memory to comply with ePAPR v1.1.
Load R3 with 64-bit value if CONFIG_SYS_PPC64 is defined.
'M' bit is set for DDR TLB to maintain cache coherence.
See details in doc/README.mpc85xx-spin-table.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/fdt.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/fdt.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c index 8221481359..a364ef216a 100644 --- a/arch/powerpc/cpu/mpc85xx/fdt.c +++ b/arch/powerpc/cpu/mpc85xx/fdt.c @@ -47,7 +47,7 @@ extern void ft_srio_setup(void *blob); void ft_fixup_cpu(void *blob, u64 memory_limit) { int off; - ulong spin_tbl_addr = get_spin_phys_addr(); + phys_addr_t spin_tbl_addr = get_spin_phys_addr(); u32 bootpg = determine_mp_bootpg(NULL); u32 id = get_my_id(); const char *enable_method; @@ -97,7 +97,16 @@ void ft_fixup_cpu(void *blob, u64 memory_limit) if ((u64)bootpg < memory_limit) { off = fdt_add_mem_rsv(blob, bootpg, (u64)4096); if (off < 0) - printf("%s: %s\n", __FUNCTION__, fdt_strerror(off)); + printf("Failed to reserve memory for bootpg: %s\n", + fdt_strerror(off)); + } + /* Reserve spin table page */ + if (spin_tbl_addr < memory_limit) { + off = fdt_add_mem_rsv(blob, + (spin_tbl_addr & ~0xffful), 4096); + if (off < 0) + printf("Failed to reserve memory for spin table: %s\n", + fdt_strerror(off)); } } #endif |