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.kushw...@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
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
}
--
2.7.4
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