diff options
| author | Michal Simek <monstr@monstr.eu> | 2010-08-13 10:47:42 (GMT) |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2010-10-21 05:51:57 (GMT) |
| commit | 8e2ad016b20f98790d5995aae1d157d1613ab9e6 (patch) | |
| tree | e1eb651eff6d7f45c0a3e8316a26112611ad5f4d | |
| parent | 44180a573ec936cd989a7c0478f5fd1cf8e1ebc3 (diff) | |
| download | linux-8e2ad016b20f98790d5995aae1d157d1613ab9e6.tar.xz | |
microblaze: Add PVR for endians plus detection
Upcomming microblaze version will support little-endian.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
| -rw-r--r-- | arch/microblaze/include/asm/cpuinfo.h | 1 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pvr.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo-static.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/mb.c | 3 | ||||
| -rw-r--r-- | arch/microblaze/platform/generic/system.dts | 1 |
6 files changed, 9 insertions, 1 deletions
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h index b4f5ca3..0d4f0ce 100644 --- a/arch/microblaze/include/asm/cpuinfo.h +++ b/arch/microblaze/include/asm/cpuinfo.h @@ -38,6 +38,7 @@ struct cpuinfo { u32 use_exc; u32 ver_code; u32 mmu; + u32 endian; /* CPU caches */ u32 use_icache; diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h index 3161055..37db96a 100644 --- a/arch/microblaze/include/asm/pvr.h +++ b/arch/microblaze/include/asm/pvr.h @@ -32,6 +32,7 @@ struct pvr_s { #define PVR0_USE_DCACHE_MASK 0x01000000 #define PVR0_USE_MMU 0x00800000 #define PVR0_USE_BTC 0x00400000 +#define PVR0_ENDI 0x00200000 #define PVR0_VERSION_MASK 0x0000FF00 #define PVR0_USER1_MASK 0x000000FF @@ -209,6 +210,8 @@ struct pvr_s { #define PVR_MMU_TLB_ACCESS(pvr) (pvr.pvr[11] & PVR11_MMU_TLB_ACCESS) #define PVR_MMU_ZONES(pvr) (pvr.pvr[11] & PVR11_MMU_ZONES) +/* endian */ +#define PVR_ENDIAN(pvr) (pvr.pvr[0] & PVR0_ENDI) int cpu_has_pvr(void); void get_pvr(struct pvr_s *pvr); diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c index f72dbd6..f70a604 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c +++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c @@ -72,6 +72,7 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu) CI(pvr_user2, USER2); CI(mmu, USE_MMU); + CI(endian, ENDIAN); CI(use_icache, USE_ICACHE); CI(icache_tagbits, ICACHE_ADDR_TAG_BITS); diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c index 6095aa6..b16b994 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo-static.c +++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c @@ -119,6 +119,7 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu) ci->pvr_user2 = fcpu(cpu, "xlnx,pvr-user2"); ci->mmu = fcpu(cpu, "xlnx,use-mmu"); + ci->endian = fcpu(cpu, "xlnx,endianness"); ci->ver_code = 0; ci->fpga_family_code = 0; diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c index 7086e35..b4048af 100644 --- a/arch/microblaze/kernel/cpu/mb.c +++ b/arch/microblaze/kernel/cpu/mb.c @@ -51,11 +51,12 @@ static int show_cpuinfo(struct seq_file *m, void *v) count = seq_printf(m, "CPU-Family: MicroBlaze\n" "FPGA-Arch: %s\n" - "CPU-Ver: %s\n" + "CPU-Ver: %s, %s endian\n" "CPU-MHz: %d.%02d\n" "BogoMips: %lu.%02lu\n", fpga_family, cpu_ver, + cpuinfo.endian ? "little" : "big", cpuinfo.cpu_clock_freq / 1000000, cpuinfo.cpu_clock_freq % diff --git a/arch/microblaze/platform/generic/system.dts b/arch/microblaze/platform/generic/system.dts index ef667d1..3f85df2 100644 --- a/arch/microblaze/platform/generic/system.dts +++ b/arch/microblaze/platform/generic/system.dts @@ -85,6 +85,7 @@ xlnx,dynamic-bus-sizing = <0x1>; xlnx,edge-is-positive = <0x1>; xlnx,family = "virtex5"; + xlnx,endianness = <0x1>; xlnx,fpu-exception = <0x1>; xlnx,fsl-data-size = <0x20>; xlnx,fsl-exception = <0x0>; |