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Commit c349adde authored by Alexander Shiyan's avatar Alexander Shiyan Committed by Shawn Guo
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ARM: i.MX27 clk: Use of_clk_init() for DT case 



Replace .init_time() hook with of_clk_init() for DT targets.

Signed-off-by: default avatarAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: default avatarShawn Guo <shawn.guo@freescale.com>
parent bb9c3398

arch/arm/mach-imx/clk-imx27.c

+29 −28
Original line number Diff line number Diff line 
#include <linux/clk.h>

#include <linux/io.h>

#include <linux/module.h>

#include <linux/clk-provider.h>

#include <linux/clkdev.h>

#include <linux/err.h>

#include <linux/clk-provider.h>

#include <linux/of.h>

#include <linux/of_address.h>



#include "clk.h"

#include "common.h"

#include "hardware.h"



#define IO_ADDR_CCM(off)	(MX27_IO_ADDRESS(MX27_CCM_BASE_ADDR + (off)))

static void __iomem *ccm __initdata;



/* Register offsets */

#define CCM_CSCR		IO_ADDR_CCM(0x0)

#define CCM_MPCTL0		IO_ADDR_CCM(0x4)

#define CCM_MPCTL1		IO_ADDR_CCM(0x8)

#define CCM_SPCTL0		IO_ADDR_CCM(0xc)

#define CCM_SPCTL1		IO_ADDR_CCM(0x10)

#define CCM_OSC26MCTL		IO_ADDR_CCM(0x14)

#define CCM_PCDR0		IO_ADDR_CCM(0x18)

#define CCM_PCDR1		IO_ADDR_CCM(0x1c)

#define CCM_PCCR0		IO_ADDR_CCM(0x20)

#define CCM_PCCR1		IO_ADDR_CCM(0x24)

#define CCM_CCSR		IO_ADDR_CCM(0x28)

#define CCM_PMCTL		IO_ADDR_CCM(0x2c)

#define CCM_PMCOUNT		IO_ADDR_CCM(0x30)

#define CCM_WKGDCTL		IO_ADDR_CCM(0x34)

#define CCM_CSCR		(ccm + 0x00)

#define CCM_MPCTL0		(ccm + 0x04)

#define CCM_MPCTL1		(ccm + 0x08)

#define CCM_SPCTL0		(ccm + 0x0c)

#define CCM_SPCTL1		(ccm + 0x10)

#define CCM_OSC26MCTL		(ccm + 0x14)

#define CCM_PCDR0		(ccm + 0x18)

#define CCM_PCDR1		(ccm + 0x1c)

#define CCM_PCCR0		(ccm + 0x20)

#define CCM_PCCR1		(ccm + 0x24)

#define CCM_CCSR		(ccm + 0x28)

#define CCM_PMCTL		(ccm + 0x2c)

#define CCM_PMCOUNT		(ccm + 0x30)

#define CCM_WKGDCTL		(ccm + 0x34)



#define CCM_CSCR_UPDATE_DIS	(1 << 31)

#define CCM_CSCR_SSI2		(1 << 23)
@@ -93,6 +92,8 @@ static void __init _mx27_clocks_init(unsigned long fref) 
{

	unsigned i;



	BUG_ON(!ccm);



	clk[dummy] = imx_clk_fixed("dummy", 0);

	clk[ckih] = imx_clk_fixed("ckih", fref);

	clk[ckil] = imx_clk_fixed("ckil", 32768);
@@ -214,6 +215,8 @@ static void __init _mx27_clocks_init(unsigned long fref) 


int __init mx27_clocks_init(unsigned long fref)

{

	ccm = ioremap(MX27_CCM_BASE_ADDR, SZ_4K);



	_mx27_clocks_init(fref);



	clk_register_clkdev(clk[uart1_ipg_gate], "ipg", "imx21-uart.0");
@@ -283,29 +286,27 @@ int __init mx27_clocks_init(unsigned long fref) 
	return 0;

}



int __init mx27_clocks_init_dt(void)

static void __init mx27_clocks_init_dt(struct device_node *np)

{

	struct device_node *np;

	struct device_node *refnp;

	u32 fref = 26000000; /* default */



	for_each_compatible_node(np, NULL, "fixed-clock") {

		if (!of_device_is_compatible(np, "fsl,imx-osc26m"))

	for_each_compatible_node(refnp, NULL, "fixed-clock") {

		if (!of_device_is_compatible(refnp, "fsl,imx-osc26m"))

			continue;



		if (!of_property_read_u32(np, "clock-frequency", &fref))

		if (!of_property_read_u32(refnp, "clock-frequency", &fref))

			break;

	}



	_mx27_clocks_init(fref);

	ccm = of_iomap(np, 0);



	np = of_find_compatible_node(NULL, NULL, "fsl,imx27-ccm");

	BUG_ON(!np);

	_mx27_clocks_init(fref);



	clk_data.clks = clk;

	clk_data.clk_num = ARRAY_SIZE(clk);

	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);



	mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx1-gpt"));



	return 0;

}

CLK_OF_DECLARE(imx27_ccm, "fsl,imx27-ccm", mx27_clocks_init_dt);

arch/arm/mach-imx/common.h

+0 −1
Original line number Diff line number Diff line
@@ -56,7 +56,6 @@ int mx27_clocks_init(unsigned long fref); 
int mx31_clocks_init(unsigned long fref);

int mx35_clocks_init(void);

int mx25_clocks_init_dt(void);

int mx27_clocks_init_dt(void);

int mx31_clocks_init_dt(void);

struct platform_device *mxc_register_gpio(char *name, int id,

	resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);

arch/arm/mach-imx/imx27-dt.c

+0 −6
Original line number Diff line number Diff line
@@ -34,16 +34,10 @@ static const char * const imx27_dt_board_compat[] __initconst = { 
	NULL

};



static void __init imx27_timer_init(void)

{

	mx27_clocks_init_dt();

}



DT_MACHINE_START(IMX27_DT, "Freescale i.MX27 (Device Tree Support)")

	.map_io		= mx27_map_io,

	.init_early	= imx27_init_early,

	.init_irq	= mx27_init_irq,

	.init_time	= imx27_timer_init,

	.init_machine	= imx27_dt_init,

	.dt_compat	= imx27_dt_board_compat,

	.restart	= mxc_restart,