diff mbox series

[v7,3/4] riscv: cpu: correctly handle the setting of CPU_FEAT_MMU bit

Message ID 1593355503-24938-4-git-send-email-sagar.kadam@sifive.com
State Accepted
Commit b6b233ddb78205abc76dde60179bd129368dc3e8
Headers show
Series update clock handler and proper cpu features | expand

Commit Message

Sagar Shrikant Kadam June 28, 2020, 2:45 p.m. UTC 
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 at sifive.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel at sifive.com>
Reviewed-by: Bin Meng <bin.meng at windriver.com>
---
 drivers/cpu/riscv_cpu.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/cpu/riscv_cpu.c b/drivers/cpu/riscv_cpu.c
index 76b0489..112690f 100644
--- a/drivers/cpu/riscv_cpu.c
+++ b/drivers/cpu/riscv_cpu.c
@@ -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;