[U-Boot] [PATCH 2/2][v2] arch: arm: update the IFC IP input clock
Prabhakar Kushwaha
prabhakar.kushwaha at nxp.com
Wed Sep 7 10:36:53 CEST 2016
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.
So update IFC IP clock to be defined as per predefined clock
divisor of platform clock.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>
---
Changes for v2: Split the patch in 2 patch set
arch/arm/cpu/armv7/ls102xa/clock.c | 10 ++--------
arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch2_speed.c | 10 ++--------
arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_speed.c | 10 ++--------
arch/arm/include/asm/arch-fsl-layerscape/config.h | 3 +++
arch/arm/include/asm/arch-ls102xa/config.h | 1 +
5 files changed, 10 insertions(+), 24 deletions(-)
diff --git a/arch/arm/cpu/armv7/ls102xa/clock.c b/arch/arm/cpu/armv7/ls102xa/clock.c
index 7a337e1..5d0411f 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 +70,8 @@ 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 /
+ CONFIG_SYS_FSL_IFC_CLK_DIV;
#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 8922197..dbc56af 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)
@@ -153,10 +149,8 @@ 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 a9b12a4..3b8389e 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)
@@ -129,10 +125,8 @@ 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
}
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h
index 5279981..2856193 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/config.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h
@@ -29,6 +29,7 @@
#ifdef CONFIG_LS2080A
#define CONFIG_MAX_CPUS 16
#define CONFIG_SYS_FSL_IFC_BANK_COUNT 8
+#define CONFIG_SYS_FSL_IFC_CLK_DIV 2
#define CONFIG_NUM_DDR_CONTROLLERS 3
#define CONFIG_SYS_FSL_HAS_DP_DDR /* Runtime check to confirm */
#define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 1, 4, 4 }
@@ -173,6 +174,7 @@
#define CONFIG_SYS_NUM_FM1_DTSEC 7
#define CONFIG_SYS_NUM_FM1_10GEC 1
#define CONFIG_SYS_FSL_IFC_BANK_COUNT 4
+#define CONFIG_SYS_FSL_IFC_CLK_DIV 1
#define CONFIG_SYS_FSL_DDR_BE
#define CONFIG_SYS_DDR_BLOCK1_SIZE ((phys_size_t)2 << 30)
#define CONFIG_MAX_MEM_MAPPED CONFIG_SYS_DDR_BLOCK1_SIZE
@@ -214,6 +216,7 @@
#define CONFIG_SYS_NUM_FM1_DTSEC 8
#define CONFIG_SYS_NUM_FM1_10GEC 2
#define CONFIG_SYS_FSL_IFC_BANK_COUNT 4
+#define CONFIG_SYS_FSL_IFC_CLK_DIV 2
#define CONFIG_SYS_FSL_DDR_BE
#define CONFIG_SYS_DDR_BLOCK1_SIZE ((phys_size_t)2 << 30)
#define CONFIG_MAX_MEM_MAPPED CONFIG_SYS_DDR_BLOCK1_SIZE
diff --git a/arch/arm/include/asm/arch-ls102xa/config.h b/arch/arm/include/asm/arch-ls102xa/config.h
index 56d8f32..5f0d756 100644
--- a/arch/arm/include/asm/arch-ls102xa/config.h
+++ b/arch/arm/include/asm/arch-ls102xa/config.h
@@ -123,6 +123,7 @@
#ifdef CONFIG_LS102XA
#define CONFIG_MAX_CPUS 2
#define CONFIG_SYS_FSL_IFC_BANK_COUNT 8
+#define CONFIG_SYS_FSL_IFC_CLK_DIV 1
#define CONFIG_NUM_DDR_CONTROLLERS 1
#define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_5_0
#define CONFIG_SYS_FSL_SEC_COMPAT 5
--
1.9.1
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