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Commit 9cf705de authored by Tony Lindgren's avatar Tony Lindgren
Browse files

ARM: OMAP2+: Add support for initializing dm814x clocks 



Let's add a minimal clocks for dm814x to get it booted. This is
mostly a placeholder and relies on the PLLs being on from the
bootloader.

Note that the divider clocks work the same way as on dm816x and
am335x.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 7c80a3f8

arch/arm/mach-omap2/io.c

+2 −2
Original line number Diff line number Diff line
@@ -558,7 +558,7 @@ void __init ti814x_init_early(void) 
	ti81xx_hwmod_init();

	omap_hwmod_init_postsetup();

	if (of_have_populated_dt())

		omap_clk_soc_init = ti81xx_dt_clk_init;

		omap_clk_soc_init = dm814x_dt_clk_init;

}



void __init ti816x_init_early(void)
@@ -575,7 +575,7 @@ void __init ti816x_init_early(void) 
	ti81xx_hwmod_init();

	omap_hwmod_init_postsetup();

	if (of_have_populated_dt())

		omap_clk_soc_init = ti81xx_dt_clk_init;

		omap_clk_soc_init = dm816x_dt_clk_init;

}

#endif

drivers/clk/ti/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ obj-y += clk.o autoidle.o clockdomain.o 
clk-common				= dpll.o composite.o divider.o gate.o \

					  fixed-factor.o mux.o apll.o

obj-$(CONFIG_SOC_AM33XX)		+= $(clk-common) clk-33xx.o

obj-$(CONFIG_SOC_TI81XX)		+= $(clk-common) fapll.o clk-816x.o

obj-$(CONFIG_SOC_TI81XX)		+= $(clk-common) fapll.o clk-814x.o clk-816x.o

obj-$(CONFIG_ARCH_OMAP2)		+= $(clk-common) interface.o clk-2xxx.o

obj-$(CONFIG_ARCH_OMAP3)		+= $(clk-common) interface.o \

					   clk-3xxx.o

drivers/clk/ti/clk-814x.c

0 → 100644
+31 −0
Original line number Diff line number Diff line 
/*

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation version 2.

 */



#include <linux/kernel.h>

#include <linux/clk-provider.h>

#include <linux/clk/ti.h>



static struct ti_dt_clk dm814_clks[] = {

	DT_CLK(NULL, "devosc_ck", "devosc_ck"),

	DT_CLK(NULL, "mpu_ck", "mpu_ck"),

	DT_CLK(NULL, "sysclk4_ck", "sysclk4_ck"),

	DT_CLK(NULL, "sysclk6_ck", "sysclk6_ck"),

	DT_CLK(NULL, "sysclk10_ck", "sysclk10_ck"),

	DT_CLK(NULL, "sysclk18_ck", "sysclk18_ck"),

	DT_CLK(NULL, "timer_sys_ck", "devosc_ck"),

	DT_CLK(NULL, "cpsw_125mhz_gclk", "cpsw_125mhz_gclk"),

	DT_CLK(NULL, "cpsw_cpts_rft_clk", "cpsw_cpts_rft_clk"),

	{ .node_name = NULL },

};



int __init dm814x_dt_clk_init(void)

{

	ti_dt_clocks_register(dm814_clks);

	omap2_clk_disable_autoidle_all();

	omap2_clk_enable_init_clocks(NULL, 0);



	return 0;

}

drivers/clk/ti/clk-816x.c

+1 −1
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ static const char *enable_init_clks[] = { 
	"ddr_pll_clk3",

};



int __init ti81xx_dt_clk_init(void)

int __init dm816x_dt_clk_init(void)

{

	ti_dt_clocks_register(dm816x_clks);

	omap2_clk_disable_autoidle_all();

include/linux/clk/ti.h

+2 −1
Original line number Diff line number Diff line
@@ -329,7 +329,8 @@ int ti_clk_add_component(struct device_node *node, struct clk_hw *hw, int type); 
int omap3430_dt_clk_init(void);

int omap3630_dt_clk_init(void);

int am35xx_dt_clk_init(void);

int ti81xx_dt_clk_init(void);

int dm814x_dt_clk_init(void);

int dm816x_dt_clk_init(void);

int omap4xxx_dt_clk_init(void);

int omap5xxx_dt_clk_init(void);

int dra7xx_dt_clk_init(void);