From: Stefano Babic <sbabic@denx.de>
Date: Wed, 13 Jul 2011 12:34:52 +0000 (+0200)
Subject: MX31: Cleanup clock function
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=9f008bb47dd696d9e539fea2f045ae01b0c78a25;p=u-boot.git

MX31: Cleanup clock function

The patch provide the same API used with other i.MX
processors and get rid of mx31_ functions.

Signed-off-by: Stefano Babic <sbabic@denx.de>
---

diff --git a/arch/arm/cpu/arm1136/mx31/generic.c b/arch/arm/cpu/arm1136/mx31/generic.c
index 4ebf38d765..248431b9bc 100644
--- a/arch/arm/cpu/arm1136/mx31/generic.c
+++ b/arch/arm/cpu/arm1136/mx31/generic.c
@@ -23,6 +23,7 @@
 
 #include <common.h>
 #include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
 #include <asm/io.h>
 
 static u32 mx31_decode_pll(u32 reg, u32 infreq)
@@ -60,7 +61,7 @@ static u32 mx31_get_mcu_main_clk(void)
 	return mx31_get_mpl_dpdgck_clk();
 }
 
-u32 mx31_get_ipg_clk(void)
+static u32 mx31_get_ipg_clk(void)
 {
 	u32 freq = mx31_get_mcu_main_clk();
 	u32 pdr0 = __REG(CCM_PDR0);
@@ -78,6 +79,24 @@ void mx31_dump_clocks(void)
 	printf("ipg clock     : %dHz\n", mx31_get_ipg_clk());
 }
 
+unsigned int mxc_get_clock(enum mxc_clock clk)
+{
+	switch (clk) {
+	case MXC_ARM_CLK:
+		return mx31_get_mcu_main_clk();
+	case MXC_IPG_CLK:
+	case MXC_CSPI_CLK:
+	case MXC_UART_CLK:
+		return mx31_get_ipg_clk();
+	}
+	return -1;
+}
+
+u32 imx_get_uartclk(void)
+{
+	return mxc_get_clock(MXC_UART_CLK);
+}
+
 void mx31_gpio_mux(unsigned long mode)
 {
 	unsigned long reg, shift, tmp;
diff --git a/arch/arm/include/asm/arch-mx31/clock.h b/arch/arm/include/asm/arch-mx31/clock.h
index 9f7ae8036e..fb035c4993 100644
--- a/arch/arm/include/asm/arch-mx31/clock.h
+++ b/arch/arm/include/asm/arch-mx31/clock.h
@@ -24,8 +24,15 @@
 #ifndef __ASM_ARCH_CLOCK_H
 #define __ASM_ARCH_CLOCK_H
 
-extern u32 mx31_get_ipg_clk(void);
-#define imx_get_uartclk mx31_get_ipg_clk
+enum mxc_clock {
+	MXC_ARM_CLK,
+	MXC_IPG_CLK,
+	MXC_CSPI_CLK,
+	MXC_UART_CLK,
+};
+
+unsigned int mxc_get_clock(enum mxc_clock clk);
+extern u32 imx_get_uartclk();
 extern void mx31_gpio_mux(unsigned long mode);
 extern void mx31_set_pad(enum iomux_pins pin, u32 config);
 
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 698e7266e8..81381d9b9a 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -60,8 +60,6 @@ static unsigned long spi_bases[] = {
 	0x53f84000,
 };
 
-#define mxc_get_clock(x)	mx31_get_ipg_clk()
-
 #elif defined(CONFIG_MX51)
 
 #define MXC_CSPICTRL_EN		(1 << 0)