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| author | York Sun <yorksun@freescale.com> | 2015-03-20 19:28:07 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2015-04-23 08:55:55 -0700 |
| commit | 19f9175027b14f11b5a30df17ce76fb6f64dc724 (patch) | |
| tree | 62277da3b592039dcc6840dd3114591e7f5d6d24 /arch/arm/cpu/armv8/fsl-lsch3 | |
| parent | f3f8c564a1cb745cef41c98dd2c29e3aad37dc4c (diff) | |
| download | u-boot-19f9175027b14f11b5a30df17ce76fb6f64dc724.tar.gz u-boot-19f9175027b14f11b5a30df17ce76fb6f64dc724.tar.xz u-boot-19f9175027b14f11b5a30df17ce76fb6f64dc724.zip | |
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/arm/cpu/armv8/fsl-lsch3')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-lsch3/speed.c | 7 |
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 72cd999c5f..2b140cd76f 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()) { |