From 6a376046ef3b2417cf9fbfbfad300fa6f026c816 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Sun, 29 Apr 2012 08:11:13 +0000
Subject: [PATCH] imx-common: Factor out get_ahb_clk()
get_ahb_clk() is a common function between mx5 and mx6.
Place it into imx-common directory.
Cc: Dirk Behme <dirk.behme@googlemail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
arch/arm/cpu/armv7/imx-common/cpu.c | 13 +++++++++++++
arch/arm/cpu/armv7/mx5/clock.c | 19 ++-----------------
arch/arm/cpu/armv7/mx6/clock.c | 19 ++++---------------
arch/arm/include/asm/arch-mx5/sys_proto.h | 2 ++
.../asm/arch-mx6/{ccm_regs.h => crm_regs.h} | 2 +-
arch/arm/include/asm/arch-mx6/sys_proto.h | 3 ++-
6 files changed, 24 insertions(+), 34 deletions(-)
rename arch/arm/include/asm/arch-mx6/{ccm_regs.h => crm_regs.h} (99%)
diff --git a/arch/arm/cpu/armv7/imx-common/cpu.c b/arch/arm/cpu/armv7/imx-common/cpu.c
index 3d58d8ae91..b96fa5bdb9 100644
--- a/arch/arm/cpu/armv7/imx-common/cpu.c
+++ b/arch/arm/cpu/armv7/imx-common/cpu.c
@@ -29,6 +29,7 @@
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
#ifdef CONFIG_FSL_ESDHC
#include <fsl_esdhc.h>
@@ -127,3 +128,15 @@ void reset_cpu(ulong addr)
{
__raw_writew(4, WDOG1_BASE_ADDR);
}
+
+u32 get_ahb_clk(void)
+{
+ struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+ u32 reg, ahb_podf;
+
+ reg = __raw_readl(&imx_ccm->cbcdr);
+ reg &= MXC_CCM_CBCDR_AHB_PODF_MASK;
+ ahb_podf = reg >> MXC_CCM_CBCDR_AHB_PODF_OFFSET;
+
+ return get_periph_clk() / (ahb_podf + 1);
+}
diff --git a/arch/arm/cpu/armv7/mx5/clock.c b/arch/arm/cpu/armv7/mx5/clock.c
index d769a4d772..903e207762 100644
--- a/arch/arm/cpu/armv7/mx5/clock.c
+++ b/arch/arm/cpu/armv7/mx5/clock.c
@@ -30,6 +30,7 @@
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <div64.h>
+#include <asm/arch/sys_proto.h>
enum pll_clocks {
PLL1_CLOCK = 0,
@@ -192,7 +193,7 @@ u32 get_mcu_main_clk(void)
/*
* Get the rate of peripheral's root clock.
*/
-static u32 get_periph_clk(void)
+u32 get_periph_clk(void)
{
u32 reg;
@@ -212,22 +213,6 @@ static u32 get_periph_clk(void)
/* NOTREACHED */
}
-/*
- * Get the rate of ahb clock.
- */
-static u32 get_ahb_clk(void)
-{
- uint32_t freq, div, reg;
-
- freq = get_periph_clk();
-
- reg = __raw_readl(&mxc_ccm->cbcdr);
- div = ((reg & MXC_CCM_CBCDR_AHB_PODF_MASK) >>
- MXC_CCM_CBCDR_AHB_PODF_OFFSET) + 1;
-
- return freq / div;
-}
-
/*
* Get the rate of ipg clock.
*/
diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index ef98563ff7..0f05432941 100644
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -24,8 +24,9 @@
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/imx-regs.h>
-#include <asm/arch/ccm_regs.h>
+#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
enum pll_clocks {
PLL_SYS, /* System PLL */
@@ -34,7 +35,7 @@ enum pll_clocks {
PLL_ENET, /* ENET PLL */
};
-struct imx_ccm_reg *imx_ccm = (struct imx_ccm_reg *)CCM_BASE_ADDR;
+struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
void enable_usboh3_clk(unsigned char enable)
{
@@ -92,7 +93,7 @@ static u32 get_mcu_main_clk(void)
return freq / (reg + 1);
}
-static u32 get_periph_clk(void)
+u32 get_periph_clk(void)
{
u32 reg, freq = 0;
@@ -139,18 +140,6 @@ static u32 get_periph_clk(void)
return freq;
}
-
-static u32 get_ahb_clk(void)
-{
- u32 reg, ahb_podf;
-
- reg = __raw_readl(&imx_ccm->cbcdr);
- reg &= MXC_CCM_CBCDR_AHB_PODF_MASK;
- ahb_podf = reg >> MXC_CCM_CBCDR_AHB_PODF_OFFSET;
-
- return get_periph_clk() / (ahb_podf + 1);
-}
-
static u32 get_ipg_clk(void)
{
u32 reg, ipg_podf;
diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h b/arch/arm/include/asm/arch-mx5/sys_proto.h
index 13d12ee1a4..3f10d2914c 100644
--- a/arch/arm/include/asm/arch-mx5/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx5/sys_proto.h
@@ -35,5 +35,7 @@ void set_chipselect_size(int const);
*/
int fecmxc_initialize(bd_t *bis);
+u32 get_ahb_clk(void);
+u32 get_periph_clk(void);
#endif
diff --git a/arch/arm/include/asm/arch-mx6/ccm_regs.h b/arch/arm/include/asm/arch-mx6/crm_regs.h
similarity index 99%
rename from arch/arm/include/asm/arch-mx6/ccm_regs.h
rename to arch/arm/include/asm/arch-mx6/crm_regs.h
index 4af0b90164..0e605c26f5 100644
--- a/arch/arm/include/asm/arch-mx6/ccm_regs.h
+++ b/arch/arm/include/asm/arch-mx6/crm_regs.h
@@ -20,7 +20,7 @@
#ifndef __ARCH_ARM_MACH_MX6_CCM_REGS_H__
#define __ARCH_ARM_MACH_MX6_CCM_REGS_H__
-struct imx_ccm_reg {
+struct mxc_ccm_reg {
u32 ccr; /* 0x0000 */
u32 ccdr;
u32 csr;
diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h b/arch/arm/include/asm/arch-mx6/sys_proto.h
index 668e77af6a..69687a855e 100644
--- a/arch/arm/include/asm/arch-mx6/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx6/sys_proto.h
@@ -34,5 +34,6 @@ u32 get_cpu_rev(void);
*/
int fecmxc_initialize(bd_t *bis);
-
+u32 get_ahb_clk(void);
+u32 get_periph_clk(void);
#endif
--
2.39.5