[U-Boot] [PATCH] armv8/fsl_lsch2: Correct the cores frequency initialization
Zhiqiang Hou
Zhiqiang.Hou at nxp.com
Sun Jun 12 08:42:04 CEST 2016
From: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
The register CLKCNCSR controls the frequency of all cores in the same
cluster.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
---
arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
index 453a93d..d57f4da 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
@@ -11,6 +11,7 @@
#include <asm/arch/clock.h>
#include <asm/arch/soc.h>
#include <fsl_ifc.h>
+#include "cpu.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -44,7 +45,7 @@ void get_sys_info(struct sys_info *sys_info)
[5] = 2, /* CC2 PPL / 2 */
};
- uint i;
+ uint i, cluster;
uint freq_c_pll[CONFIG_SYS_FSL_NUM_CC_PLLS];
uint ratio[CONFIG_SYS_FSL_NUM_CC_PLLS];
unsigned long sysclk = CONFIG_SYS_CLK_FREQ;
@@ -71,8 +72,9 @@ void get_sys_info(struct sys_info *sys_info)
freq_c_pll[i] = sys_info->freq_systembus * ratio[i];
}
- for (cpu = 0; cpu < CONFIG_MAX_CPUS; cpu++) {
- u32 c_pll_sel = (in_be32(&clk->clkcsr[cpu].clkcncsr) >> 27)
+ for_each_cpu(i, cpu, cpu_numcores(), cpu_mask()) {
+ cluster = fsl_qoriq_core_to_cluster(cpu);
+ u32 c_pll_sel = (in_be32(&clk->clkcsr[cluster].clkcncsr) >> 27)
& 0xf;
u32 cplx_pll = core_cplx_pll[c_pll_sel];
--
2.1.0.27.g96db324
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