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 --- Changes for v2: Split the patch in 2 patch set Changes for v3: Rebased on top of u-boot commit Changes for v4: Sending as it is Changes for v5: Sending as it is Changes for v6: Subject updated Changes for v7: Sending as it is Changes for v4: Sending as it is
arch/arm/cpu/armv7/ls102xa/clock.c | 9 +-------- arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c | 10 ++-------- arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c | 10 ++-------- 3 files changed, 5 insertions(+), 24 deletions(-)
diff --git a/arch/arm/cpu/armv7/ls102xa/clock.c b/arch/arm/cpu/armv7/ls102xa/clock.c index 7a337e1..b7d61ad 100644 --- 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 --- 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 --- 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 }