diff options
Diffstat (limited to 'arch/arm/mach-mx3/cpu.c')
| -rw-r--r-- | arch/arm/mach-mx3/cpu.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/cpu.c b/arch/arm/mach-mx3/cpu.c index 47b0573c11f5..d00a75457812 100644 --- a/arch/arm/mach-mx3/cpu.c +++ b/arch/arm/mach-mx3/cpu.c @@ -55,3 +55,30 @@ void __init mx31_read_cpu_rev(void) printk(KERN_WARNING "Unknown CPU identifier. srev = %02x\n", srev); } + +unsigned int mx35_cpu_rev; +EXPORT_SYMBOL(mx35_cpu_rev); + +void __init mx35_read_cpu_rev(void) +{ + u32 rev; + char *srev = "unknown"; + + rev = __raw_readl(MX35_IO_ADDRESS(MX35_IIM_BASE_ADDR + MXC_IIMSREV)); + switch (rev) { + case 0x00: + mx35_cpu_rev = MX3x_CHIP_REV_1_0; + srev = "1.0"; + break; + case 0x10: + mx35_cpu_rev = MX3x_CHIP_REV_2_0; + srev = "2.0"; + break; + case 0x11: + mx35_cpu_rev = MX3x_CHIP_REV_2_1; + srev = "2.1"; + break; + } + + printk(KERN_INFO "CPU identified as i.MX35, silicon rev %s\n", srev); +} |