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riscv: cpu: correctly handle the setting of CPU_FEAT_MMU bit

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The conditional check to read "mmu-type" from the device tree
is not rightly handled due to which the cpu feature doesn't include
CPU_FEAT_MMU even if it's corresponding entry is present in the device
tree.

The initialization of cpu features is now taken care in cpu-uclass
driver, so no need to zero out cpu_freq in riscv_cpu driver and can be
removed.

Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
This commit is contained in:
Sagar Shrikant Kadam 2020-06-28 07:45:02 -07:00 committed by Andes
parent 969251a5a4
commit b6b233ddb7
1 changed files with 1 additions and 4 deletions
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5
drivers/cpu/riscv_cpu.c
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@ -36,9 +36,6 @@ static int riscv_cpu_get_info(struct udevice *dev, struct cpu_info *info)
struct clk clk;
const char *mmu;
/* Zero out the frequency, in case sizeof(ulong) != sizeof(u32) */
info->cpu_freq = 0;
/* First try getting the frequency from the assigned clock */
ret = clk_get_by_index(dev, 0, &clk);
if (!ret) {
@ -52,7 +49,7 @@ static int riscv_cpu_get_info(struct udevice *dev, struct cpu_info *info)
dev_read_u32(dev, "clock-frequency", (u32 *)&info->cpu_freq);
mmu = dev_read_string(dev, "mmu-type");
if (!mmu)
if (mmu)
info->features |= BIT(CPU_FEAT_MMU);
return 0;