arch: arm: update the IFC IP input clock

IFC IP clock is always a constant divisor of platform clock
pre-defined per SoC. Clock control register (CCR) used in
current implementation governs IFC IP output clock.

Update sys_info->freq_localbus to represent IFC input clock with
value constant divisor of platform clock.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

diff --git a/arch/arm/cpu/armv7/ls102xa/clock.c b/arch/arm/cpu/armv7/ls102xa/clock.c
index 7a337e1..b7d61ad 100644 (file)
--- a/arch/arm/cpu/armv7/ls102xa/clock.c
+++ b/arch/arm/cpu/armv7/ls102xa/clock.c
@@ -19,10 +19,6 @@ DECLARE_GLOBAL_DATA_PTR;
 void get_sys_info(struct sys_info *sys_info)
 {
        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
-#ifdef CONFIG_FSL_IFC
-       struct fsl_ifc ifc_regs = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL};
-       u32 ccr;
-#endif
        struct ccsr_clk *clk = (void *)(CONFIG_SYS_FSL_LS1_CLK_ADDR);
        unsigned int cpu;
        const u8 core_cplx_pll[6] = {
@@ -74,10 +70,7 @@ void get_sys_info(struct sys_info *sys_info)
        }
 
 #if defined(CONFIG_FSL_IFC)
-       ccr = in_be32(&ifc_regs.gregs->ifc_ccr);
-       ccr = ((ccr & IFC_CCR_CLK_DIV_MASK) >> IFC_CCR_CLK_DIV_SHIFT) + 1;
-
-       sys_info->freq_localbus = sys_info->freq_systembus / ccr;
+       sys_info->freq_localbus = sys_info->freq_systembus;
 #endif
 }
 

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 3da7037..2d7775e 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c
@@ -22,10 +22,6 @@ DECLARE_GLOBAL_DATA_PTR;
 void get_sys_info(struct sys_info *sys_info)
 {
        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
-#ifdef CONFIG_FSL_IFC
-       struct fsl_ifc ifc_regs = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL};
-       u32 ccr;
-#endif
 #if (defined(CONFIG_FSL_ESDHC) &&\
        defined(CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK)) ||\
        defined(CONFIG_SYS_DPAA_FMAN)
@@ -156,10 +152,8 @@ void get_sys_info(struct sys_info *sys_info)
 #endif
 
 #if defined(CONFIG_FSL_IFC)
-       ccr = ifc_in32(&ifc_regs.gregs->ifc_ccr);
-       ccr = ((ccr & IFC_CCR_CLK_DIV_MASK) >> IFC_CCR_CLK_DIV_SHIFT) + 1;
-
-       sys_info->freq_localbus = sys_info->freq_systembus / ccr;
+       sys_info->freq_localbus = sys_info->freq_systembus /
+                                               CONFIG_SYS_FSL_IFC_CLK_DIV;
 #endif
 }
 

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c
index f8fefc7..ab46431 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c
@@ -26,10 +26,6 @@ DECLARE_GLOBAL_DATA_PTR;
 void get_sys_info(struct sys_info *sys_info)
 {
        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
-#ifdef CONFIG_FSL_IFC
-       struct fsl_ifc ifc_regs = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL};
-       u32 ccr;
-#endif
        struct ccsr_clk_cluster_group __iomem *clk_grp[2] = {
                (void *)(CONFIG_SYS_FSL_CH3_CLK_GRPA_ADDR),
                (void *)(CONFIG_SYS_FSL_CH3_CLK_GRPB_ADDR)
@@ -128,10 +124,8 @@ void get_sys_info(struct sys_info *sys_info)
        }
 
 #if defined(CONFIG_FSL_IFC)
-       ccr = ifc_in32(&ifc_regs.gregs->ifc_ccr);
-       ccr = ((ccr & IFC_CCR_CLK_DIV_MASK) >> IFC_CCR_CLK_DIV_SHIFT) + 1;
-
-       sys_info->freq_localbus = sys_info->freq_systembus / ccr;
+       sys_info->freq_localbus = sys_info->freq_systembus /
+                                               CONFIG_SYS_FSL_IFC_CLK_DIV;
 #endif
 }