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ARM: mmp: move mmp2 clock definition to separated file 

move mmp2 clock definition to another file. Then mmp2 can
choose common clock framework or private clock framework.

Signed-off-by: Chao Xie <xiechao.mail@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
This commit is contained in:
Chao Xie 2012-08-27 10:54:02 +08:00 committed by Haojian Zhuang
parent 9e73d69823
commit 8430305dc3
4 changed files with 118 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/mach-mmp/Makefile
View File

@ -13,6 +13,7 @@ ifeq ($(CONFIG_COMMON_CLK), )
obj-y += clock.o
obj-$(CONFIG_CPU_PXA168) += clock-pxa168.o
obj-$(CONFIG_CPU_PXA910) += clock-pxa910.o
obj-$(CONFIG_CPU_MMP2) += clock-mmp2.o
endif
ifeq ($(CONFIG_PM),y)
obj-$(CONFIG_CPU_PXA910) += pm-pxa910.o

111
arch/arm/mach-mmp/clock-mmp2.c Normal file
View File

@ -0,0 +1,111 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <mach/addr-map.h>
#include "common.h"
#include "clock.h"
/*
* APB Clock register offsets for MMP2
*/
#define APBC_RTC APBC_REG(0x000)
#define APBC_TWSI1 APBC_REG(0x004)
#define APBC_TWSI2 APBC_REG(0x008)
#define APBC_TWSI3 APBC_REG(0x00c)
#define APBC_TWSI4 APBC_REG(0x010)
#define APBC_KPC APBC_REG(0x018)
#define APBC_UART1 APBC_REG(0x02c)
#define APBC_UART2 APBC_REG(0x030)
#define APBC_UART3 APBC_REG(0x034)
#define APBC_GPIO APBC_REG(0x038)
#define APBC_PWM0 APBC_REG(0x03c)
#define APBC_PWM1 APBC_REG(0x040)
#define APBC_PWM2 APBC_REG(0x044)
#define APBC_PWM3 APBC_REG(0x048)
#define APBC_SSP0 APBC_REG(0x04c)
#define APBC_SSP1 APBC_REG(0x050)
#define APBC_SSP2 APBC_REG(0x054)
#define APBC_SSP3 APBC_REG(0x058)
#define APBC_SSP4 APBC_REG(0x05c)
#define APBC_SSP5 APBC_REG(0x060)
#define APBC_TWSI5 APBC_REG(0x07c)
#define APBC_TWSI6 APBC_REG(0x080)
#define APBC_UART4 APBC_REG(0x088)
#define APMU_USB APMU_REG(0x05c)
#define APMU_NAND APMU_REG(0x060)
#define APMU_SDH0 APMU_REG(0x054)
#define APMU_SDH1 APMU_REG(0x058)
#define APMU_SDH2 APMU_REG(0x0e8)
#define APMU_SDH3 APMU_REG(0x0ec)
static void sdhc_clk_enable(struct clk *clk)
{
uint32_t clk_rst;
clk_rst = __raw_readl(clk->clk_rst);
clk_rst |= clk->enable_val;
__raw_writel(clk_rst, clk->clk_rst);
}
static void sdhc_clk_disable(struct clk *clk)
{
uint32_t clk_rst;
clk_rst = __raw_readl(clk->clk_rst);
clk_rst &= ~clk->enable_val;
__raw_writel(clk_rst, clk->clk_rst);
}
struct clkops sdhc_clk_ops = {
.enable = sdhc_clk_enable,
.disable = sdhc_clk_disable,
};
/* APB peripheral clocks */
static APBC_CLK(uart1, UART1, 1, 26000000);
static APBC_CLK(uart2, UART2, 1, 26000000);
static APBC_CLK(uart3, UART3, 1, 26000000);
static APBC_CLK(uart4, UART4, 1, 26000000);
static APBC_CLK(twsi1, TWSI1, 0, 26000000);
static APBC_CLK(twsi2, TWSI2, 0, 26000000);
static APBC_CLK(twsi3, TWSI3, 0, 26000000);
static APBC_CLK(twsi4, TWSI4, 0, 26000000);
static APBC_CLK(twsi5, TWSI5, 0, 26000000);
static APBC_CLK(twsi6, TWSI6, 0, 26000000);
static APBC_CLK(gpio, GPIO, 0, 26000000);
static APMU_CLK(nand, NAND, 0xbf, 100000000);
static APMU_CLK_OPS(sdh0, SDH0, 0x1b, 200000000, &sdhc_clk_ops);
static APMU_CLK_OPS(sdh1, SDH1, 0x1b, 200000000, &sdhc_clk_ops);
static APMU_CLK_OPS(sdh2, SDH2, 0x1b, 200000000, &sdhc_clk_ops);
static APMU_CLK_OPS(sdh3, SDH3, 0x1b, 200000000, &sdhc_clk_ops);
static struct clk_lookup mmp2_clkregs[] = {
INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL),
INIT_CLKREG(&clk_uart4, "pxa2xx-uart.3", NULL),
INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.0", NULL),
INIT_CLKREG(&clk_twsi2, "pxa2xx-i2c.1", NULL),
INIT_CLKREG(&clk_twsi3, "pxa2xx-i2c.2", NULL),
INIT_CLKREG(&clk_twsi4, "pxa2xx-i2c.3", NULL),
INIT_CLKREG(&clk_twsi5, "pxa2xx-i2c.4", NULL),
INIT_CLKREG(&clk_twsi6, "pxa2xx-i2c.5", NULL),
INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
INIT_CLKREG(&clk_sdh0, "sdhci-pxav3.0", "PXA-SDHCLK"),
INIT_CLKREG(&clk_sdh1, "sdhci-pxav3.1", "PXA-SDHCLK"),
INIT_CLKREG(&clk_sdh2, "sdhci-pxav3.2", "PXA-SDHCLK"),
INIT_CLKREG(&clk_sdh3, "sdhci-pxav3.3", "PXA-SDHCLK"),
};
void __init mmp2_clk_init(void)
{
clkdev_add_table(ARRAY_AND_SIZE(mmp2_clkregs));
}

1
arch/arm/mach-mmp/common.h
View File

@ -9,3 +9,4 @@ extern void __init mmp_map_io(void);
extern void mmp_restart(char, const char *);
extern void __init pxa168_clk_init(void);
extern void __init pxa910_clk_init(void);
extern void __init mmp2_clk_init(void);

71
arch/arm/mach-mmp/mmp2.c
View File

@ -20,7 +20,6 @@
#include <asm/mach/time.h>
#include <mach/addr-map.h>
#include <mach/regs-apbc.h>
#include <mach/regs-apmu.h>
#include <mach/cputype.h>
#include <mach/irqs.h>
#include <mach/dma.h>
@ -29,7 +28,6 @@
#include <mach/mmp2.h>
#include "common.h"
#include "clock.h"
#define MFPR_VIRT_BASE (APB_VIRT_BASE + 0x1e000)
@ -98,67 +96,6 @@ void __init mmp2_init_irq(void)
mmp2_init_icu();
}
static void sdhc_clk_enable(struct clk *clk)
{
uint32_t clk_rst;
clk_rst = __raw_readl(clk->clk_rst);
clk_rst |= clk->enable_val;
__raw_writel(clk_rst, clk->clk_rst);
}
static void sdhc_clk_disable(struct clk *clk)
{
uint32_t clk_rst;
clk_rst = __raw_readl(clk->clk_rst);
clk_rst &= ~clk->enable_val;
__raw_writel(clk_rst, clk->clk_rst);
}
struct clkops sdhc_clk_ops = {
.enable = sdhc_clk_enable,
.disable = sdhc_clk_disable,
};
/* APB peripheral clocks */
static APBC_CLK(uart1, MMP2_UART1, 1, 26000000);
static APBC_CLK(uart2, MMP2_UART2, 1, 26000000);
static APBC_CLK(uart3, MMP2_UART3, 1, 26000000);
static APBC_CLK(uart4, MMP2_UART4, 1, 26000000);
static APBC_CLK(twsi1, MMP2_TWSI1, 0, 26000000);
static APBC_CLK(twsi2, MMP2_TWSI2, 0, 26000000);
static APBC_CLK(twsi3, MMP2_TWSI3, 0, 26000000);
static APBC_CLK(twsi4, MMP2_TWSI4, 0, 26000000);
static APBC_CLK(twsi5, MMP2_TWSI5, 0, 26000000);
static APBC_CLK(twsi6, MMP2_TWSI6, 0, 26000000);
static APBC_CLK(gpio, MMP2_GPIO, 0, 26000000);
static APMU_CLK(nand, NAND, 0xbf, 100000000);
static APMU_CLK_OPS(sdh0, SDH0, 0x1b, 200000000, &sdhc_clk_ops);
static APMU_CLK_OPS(sdh1, SDH1, 0x1b, 200000000, &sdhc_clk_ops);
static APMU_CLK_OPS(sdh2, SDH2, 0x1b, 200000000, &sdhc_clk_ops);
static APMU_CLK_OPS(sdh3, SDH3, 0x1b, 200000000, &sdhc_clk_ops);
static struct clk_lookup mmp2_clkregs[] = {
INIT_CLKREG(&clk_uart1, "pxa2xx-uart.0", NULL),
INIT_CLKREG(&clk_uart2, "pxa2xx-uart.1", NULL),
INIT_CLKREG(&clk_uart3, "pxa2xx-uart.2", NULL),
INIT_CLKREG(&clk_uart4, "pxa2xx-uart.3", NULL),
INIT_CLKREG(&clk_twsi1, "pxa2xx-i2c.0", NULL),
INIT_CLKREG(&clk_twsi2, "pxa2xx-i2c.1", NULL),
INIT_CLKREG(&clk_twsi3, "pxa2xx-i2c.2", NULL),
INIT_CLKREG(&clk_twsi4, "pxa2xx-i2c.3", NULL),
INIT_CLKREG(&clk_twsi5, "pxa2xx-i2c.4", NULL),
INIT_CLKREG(&clk_twsi6, "pxa2xx-i2c.5", NULL),
INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
INIT_CLKREG(&clk_sdh0, "sdhci-pxav3.0", "PXA-SDHCLK"),
INIT_CLKREG(&clk_sdh1, "sdhci-pxav3.1", "PXA-SDHCLK"),
INIT_CLKREG(&clk_sdh2, "sdhci-pxav3.2", "PXA-SDHCLK"),
INIT_CLKREG(&clk_sdh3, "sdhci-pxav3.3", "PXA-SDHCLK"),
};
static int __init mmp2_init(void)
{
if (cpu_is_mmp2()) {
@ -168,25 +105,27 @@ static int __init mmp2_init(void)
mfp_init_base(MFPR_VIRT_BASE);
mfp_init_addr(mmp2_addr_map);
pxa_init_dma(IRQ_MMP2_DMA_RIQ, 16);
clkdev_add_table(ARRAY_AND_SIZE(mmp2_clkregs));
mmp2_clk_init();
}
return 0;
}
postcore_initcall(mmp2_init);
#define APBC_TIMERS APBC_REG(0x024)
static void __init mmp2_timer_init(void)
{
unsigned long clk_rst;
__raw_writel(APBC_APBCLK | APBC_RST, APBC_MMP2_TIMERS);
__raw_writel(APBC_APBCLK | APBC_RST, APBC_TIMERS);
/*
* enable bus/functional clock, enable 6.5MHz (divider 4),
* release reset
*/
clk_rst = APBC_APBCLK | APBC_FNCLK | APBC_FNCLKSEL(1);
__raw_writel(clk_rst, APBC_MMP2_TIMERS);
__raw_writel(clk_rst, APBC_TIMERS);
timer_init(IRQ_MMP2_TIMER1);
}