[PATCH 05/12] ARM: OMAP2+: Add support for initializing dm814x clocks

Tony Lindgren tony at atomide.com
Thu Jul 16 22:06:26 PDT 2015


* Stephen Boyd <sboyd at codeaurora.org> [150716 11:27]:
> On 07/16/2015 02:37 AM, Tony Lindgren wrote:
> >
> >Here's this patch updated with the above removed.
> >
> 
> Ok. I fixed up Mike's email in case he wants to look at it. Looks fine to me
> though.

OK thanks for updating Mike's email. 

Regards,

Tony

> >8< -------------
> >From: Tony Lindgren <tony at atomide.com>
> >Date: Thu, 16 Jul 2015 01:55:57 -0700
> >Subject: [PATCH] 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 at gmail.com>
> >Cc: Mike Turquette <mturquette at linaro.org>
> >Cc: Paul Walmsley <paul at pwsan.com>
> >Cc: Stephen Boyd <sboyd at codeaurora.org>
> >Cc: Tero Kristo <t-kristo at ti.com>
> >Signed-off-by: Tony Lindgren <tony at atomide.com>
> 
> Acked-by: Stephen Boyd <sboyd at codeaurora.org>
> 
> >
> >--- a/arch/arm/mach-omap2/io.c
> >+++ b/arch/arm/mach-omap2/io.c
> >@@ -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
> >--- a/drivers/clk/ti/Makefile
> >+++ b/drivers/clk/ti/Makefile
> >@@ -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
> >--- /dev/null
> >+++ b/drivers/clk/ti/clk-814x.c
> >@@ -0,0 +1,31 @@
> >+/*
> >+ * 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;
> >+}
> >--- a/drivers/clk/ti/clk-816x.c
> >+++ b/drivers/clk/ti/clk-816x.c
> >@@ -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();
> >--- a/include/linux/clk/ti.h
> >+++ b/include/linux/clk/ti.h
> >@@ -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);
> 
> 
> -- 
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 



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