diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2006-01-12 16:28:16 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-12 16:28:16 +0000 |
| commit | 6b090a25fe58067e4bf4515d5056df1f07b64849 (patch) | |
| tree | de48a1d78c55f5ec119d6c8d2a31b72748a3bf60 /arch | |
| parent | 37134cd55d57e95d3f606c6f2a57fa496bdad333 (diff) | |
[ARM] 3234/1: Update cpu_architecture() to deal with the new ID format
Patch from Catalin Marinas
Since ARM1176, the CPU ID format has changed and it will also be used for
future ARM architectures.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/setup.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 2cab741ad0f..c45d10d07bd 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -205,7 +205,7 @@ static const char *proc_arch[] = { "5TE", "5TEJ", "6TEJ", - "?(10)", + "7", "?(11)", "?(12)", "?(13)", @@ -258,14 +258,17 @@ int cpu_architecture(void) { int cpu_arch; - if ((processor_id & 0x0000f000) == 0) { + if ((processor_id & 0x0008f000) == 0) { cpu_arch = CPU_ARCH_UNKNOWN; - } else if ((processor_id & 0x0000f000) == 0x00007000) { + } else if ((processor_id & 0x0008f000) == 0x00007000) { cpu_arch = (processor_id & (1 << 23)) ? CPU_ARCH_ARMv4T : CPU_ARCH_ARMv3; - } else { + } else if ((processor_id & 0x00080000) == 0x00000000) { cpu_arch = (processor_id >> 16) & 7; if (cpu_arch) cpu_arch += CPU_ARCH_ARMv3; + } else { + /* the revised CPUID */ + cpu_arch = ((processor_id >> 12) & 0xf) - 0xb + CPU_ARCH_ARMv6; } return cpu_arch; @@ -863,11 +866,11 @@ static int c_show(struct seq_file *m, void *v) seq_printf(m, "\nCPU implementer\t: 0x%02x\n", processor_id >> 24); seq_printf(m, "CPU architecture: %s\n", proc_arch[cpu_architecture()]); - if ((processor_id & 0x0000f000) == 0x00000000) { + if ((processor_id & 0x0008f000) == 0x00000000) { /* pre-ARM7 */ seq_printf(m, "CPU part\t\t: %07x\n", processor_id >> 4); } else { - if ((processor_id & 0x0000f000) == 0x00007000) { + if ((processor_id & 0x0008f000) == 0x00007000) { /* ARM7 */ seq_printf(m, "CPU variant\t: 0x%02x\n", (processor_id >> 16) & 127); |