diff options
| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2013-02-26 21:42:26 -0700 |
|---|---|---|
| committer | Eric Nelson <eric.nelson@boundarydevices.com> | 2013-03-03 08:14:51 -0700 |
| commit | 250d1ea40b08689ca99d6d63cc260c2c059ef6f9 (patch) | |
| tree | d5945070fb2704c09f507d9a77eedd73018d7ca7 | |
| parent | b4b0bbad31a089aa4dc01daf5e428cf9aa0cd3a5 (diff) | |
i.MX6: default to 1GHz on TO 1.0
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
| -rw-r--r-- | arch/arm/mach-mx6/cpu_op-mx6.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/mach-mx6/cpu_op-mx6.c b/arch/arm/mach-mx6/cpu_op-mx6.c index 5124c5ee5985..9281faa51c44 100644 --- a/arch/arm/mach-mx6/cpu_op-mx6.c +++ b/arch/arm/mach-mx6/cpu_op-mx6.c @@ -342,7 +342,7 @@ void mx6_cpu_op_init(void) { unsigned int reg; void __iomem *base; - if (cpu_is_mx6q()) { + if (cpu_is_mx6q() && (mx6q_revision() > IMX_CHIP_REVISION_1_0)) { /*read fuse bit to know the max cpu freq : offset 0x440 * bit[17:16]:SPEED_GRADING[1:0]*/ base = IO_ADDRESS(OCOTP_BASE_ADDR); @@ -351,8 +351,10 @@ void mx6_cpu_op_init(void) reg >>= OCOTP_SPEED_BIT_OFFSET; /*choose the little value to run lower max cpufreq*/ arm_max_freq = (reg > arm_max_freq) ? arm_max_freq : reg; - } else + } else { + /* TO 1.0 didn't have cpu frequency fuses blown */ arm_max_freq = CPU_AT_1GHz;/*mx6dl/sl max freq is 1Ghz*/ + } printk(KERN_INFO "arm_max_freq=%x\n", arm_max_freq); get_cpu_op = mx6_get_cpu_op; set_num_cpu_op = mx6_set_num_cpu_op; |