summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorYork Sun <yorksun@freescale.com>2015-03-20 19:28:07 -0700
committerYork Sun <yorksun@freescale.com>2015-04-23 08:55:55 -0700
commit19f9175027b14f11b5a30df17ce76fb6f64dc724 (patch)
tree62277da3b592039dcc6840dd3114591e7f5d6d24 /arch
parentf3f8c564a1cb745cef41c98dd2c29e3aad37dc4c (diff)
downloadu-boot-imx-19f9175027b14f11b5a30df17ce76fb6f64dc724.zip
u-boot-imx-19f9175027b14f11b5a30df17ce76fb6f64dc724.tar.gz
u-boot-imx-19f9175027b14f11b5a30df17ce76fb6f64dc724.tar.bz2
armv8/fsl-lsch3: Fix platform clock calculation
Platform clock is half of platform PLL. There is an additional divisor in place. Clean up code copied from powerpc. Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv8/fsl-lsch3/speed.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/speed.c b/arch/arm/cpu/armv8/fsl-lsch3/speed.c
index 72cd999..2b140cd 100644
--- a/arch/arm/cpu/armv8/fsl-lsch3/speed.c
+++ b/arch/arm/cpu/armv8/fsl-lsch3/speed.c
@@ -86,6 +86,8 @@ void get_sys_info(struct sys_info *sys_info)
sys_info->freq_systembus *= (in_le32(&gur->rcwsr[0]) >>
FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_SHIFT) &
FSL_CHASSIS3_RCWSR0_SYS_PLL_RAT_MASK;
+ /* Platform clock is half of platform PLL */
+ sys_info->freq_systembus /= 2;
sys_info->freq_ddrbus *= (in_le32(&gur->rcwsr[0]) >>
FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_SHIFT) &
FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_MASK;
@@ -102,10 +104,7 @@ void get_sys_info(struct sys_info *sys_info)
offsetof(struct ccsr_clk_cluster_group,
pllngsr[i%3].gsr));
ratio[i] = (in_le32(offset) >> 1) & 0x3f;
- if (ratio[i] > 4)
- freq_c_pll[i] = sysclk * ratio[i];
- else
- freq_c_pll[i] = sys_info->freq_systembus * ratio[i];
+ freq_c_pll[i] = sysclk * ratio[i];
}
for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) {