From 9cf705de06a27cc99874626c9717b32e9874b3bb Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@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@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: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/mach-omap2/io.c | 4 ++--
drivers/clk/ti/Makefile | 2 +-
drivers/clk/ti/clk-814x.c | 31 +++++++++++++++++++++++++++++++
drivers/clk/ti/clk-816x.c | 2 +-
include/linux/clk/ti.h | 3 ++-
5 files changed, 37 insertions(+), 5 deletions(-)
create mode 100644 drivers/clk/ti/clk-814x.c
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 6779a9ff0d10f..596af73c7549a 100644
--- 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
diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index 105ffd0f5e79d..80b42884a0e97 100644
--- 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
diff --git a/drivers/clk/ti/clk-814x.c b/drivers/clk/ti/clk-814x.c
new file mode 100644
index 0000000000000..d490d427cc203
--- /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;
+}
diff --git a/drivers/clk/ti/clk-816x.c b/drivers/clk/ti/clk-816x.c
index 9451e651a1ff7..43d07456e78d6 100644
--- 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();
diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h
index 79b76e13d9042..1736e29cee1bd 100644
--- 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);
--
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