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-rw-r--r--arch/arm/cpu/armv7/mx7/soc.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx7/soc.c b/arch/arm/cpu/armv7/mx7/soc.c
index ba6cfb9dce..073bbc6d01 100644
--- a/arch/arm/cpu/armv7/mx7/soc.c
+++ b/arch/arm/cpu/armv7/mx7/soc.c
@@ -165,6 +165,21 @@ u32 get_cpu_temp_grade(int *minc, int *maxc)
return val;
}
+static bool is_mx7d(void)
+{
+ struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+ struct fuse_bank *bank = &ocotp->bank[1];
+ struct fuse_bank1_regs *fuse =
+ (struct fuse_bank1_regs *)bank->fuse_regs;
+ int val;
+
+ val = readl(&fuse->tester4);
+ if (val & 1)
+ return false;
+ else
+ return true;
+}
+
u32 get_cpu_rev(void)
{
struct mxc_ccm_anatop_reg *ccm_anatop = (struct mxc_ccm_anatop_reg *)
@@ -172,6 +187,9 @@ u32 get_cpu_rev(void)
u32 reg = readl(&ccm_anatop->digprog);
u32 type = (reg >> 16) & 0xff;
+ if (!is_mx7d())
+ type = MXC_CPU_MX7S;
+
reg &= 0xff;
return (type << 12) | reg;
}
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