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authorRob Herring <robh@kernel.org>2014-03-02 05:05:44 +0100
committerRob Herring <robh@kernel.org>2014-06-24 21:21:22 +0200
commita54c959d8be9d057b1a192e34a378b74dd81c5f6 (patch)
tree480857c798d96a8e859ee7d010a21a32733a3d32 /drivers/clk
parentdts: versatile: add clock tree (diff)
downloadlinux-a54c959d8be9d057b1a192e34a378b74dd81c5f6.tar.xz
linux-a54c959d8be9d057b1a192e34a378b74dd81c5f6.zip
clk: versatile: add versatile OSC support
Versatile platforms share the same OSC programming model as Integrator platforms. Add the necessary parameters and init functions for Versatile. Renaming the file to clk-versatile.c as versatile is used as the family name for ARM, Ltd. boards. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Mike Turquette <mturquette@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/versatile/Makefile3
-rw-r--r--drivers/clk/versatile/clk-versatile.c (renamed from drivers/clk/versatile/clk-integrator.c)38
2 files changed, 36 insertions, 5 deletions
diff --git a/drivers/clk/versatile/Makefile b/drivers/clk/versatile/Makefile
index fd449f9b006d..162e519cb0f9 100644
--- a/drivers/clk/versatile/Makefile
+++ b/drivers/clk/versatile/Makefile
@@ -1,6 +1,5 @@
# Makefile for Versatile-specific clocks
-obj-$(CONFIG_ICST) += clk-icst.o
-obj-$(CONFIG_ARCH_INTEGRATOR) += clk-integrator.o
+obj-$(CONFIG_ICST) += clk-icst.o clk-versatile.o
obj-$(CONFIG_INTEGRATOR_IMPD1) += clk-impd1.o
obj-$(CONFIG_ARCH_REALVIEW) += clk-realview.o
obj-$(CONFIG_ARCH_VEXPRESS) += clk-vexpress.o
diff --git a/drivers/clk/versatile/clk-integrator.c b/drivers/clk/versatile/clk-versatile.c
index 734c4b8fe6ab..a76981e88cb6 100644
--- a/drivers/clk/versatile/clk-integrator.c
+++ b/drivers/clk/versatile/clk-versatile.c
@@ -1,5 +1,6 @@
/*
- * Clock driver for the ARM Integrator/AP and Integrator/CP boards
+ * Clock driver for the ARM Integrator/AP, Integrator/CP, Versatile AB and
+ * Versatile PB boards.
* Copyright (C) 2012 Linus Walleij
*
* This program is free software; you can redistribute it and/or modify
@@ -17,6 +18,9 @@
#define INTEGRATOR_HDR_LOCK_OFFSET 0x14
+#define VERSATILE_SYS_OSCCLCD_OFFSET 0x1c
+#define VERSATILE_SYS_LOCK_OFFSET 0x20
+
/* Base offset for the core module */
static void __iomem *cm_base;
@@ -37,11 +41,27 @@ static const struct clk_icst_desc __initdata cm_auxosc_desc = {
.lock_offset = INTEGRATOR_HDR_LOCK_OFFSET,
};
-static void __init of_integrator_cm_osc_setup(struct device_node *np)
+static const struct icst_params versatile_auxosc_params = {
+ .vco_max = ICST307_VCO_MAX,
+ .vco_min = ICST307_VCO_MIN,
+ .vd_min = 4 + 8,
+ .vd_max = 511 + 8,
+ .rd_min = 1 + 2,
+ .rd_max = 127 + 2,
+ .s2div = icst307_s2div,
+ .idx2s = icst307_idx2s,
+};
+
+static const struct clk_icst_desc versatile_auxosc_desc __initconst = {
+ .params = &versatile_auxosc_params,
+ .vco_offset = VERSATILE_SYS_OSCCLCD_OFFSET,
+ .lock_offset = VERSATILE_SYS_LOCK_OFFSET,
+};
+static void __init cm_osc_setup(struct device_node *np,
+ const struct clk_icst_desc *desc)
{
struct clk *clk = ERR_PTR(-EINVAL);
const char *clk_name = np->name;
- const struct clk_icst_desc *desc = &cm_auxosc_desc;
const char *parent_name;
if (!cm_base) {
@@ -65,5 +85,17 @@ static void __init of_integrator_cm_osc_setup(struct device_node *np)
if (!IS_ERR(clk))
of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
+
+static void __init of_integrator_cm_osc_setup(struct device_node *np)
+{
+ cm_osc_setup(np, &cm_auxosc_desc);
+}
CLK_OF_DECLARE(integrator_cm_auxosc_clk,
"arm,integrator-cm-auxosc", of_integrator_cm_osc_setup);
+
+static void __init of_versatile_cm_osc_setup(struct device_node *np)
+{
+ cm_osc_setup(np, &versatile_auxosc_desc);
+}
+CLK_OF_DECLARE(versatile_cm_auxosc_clk,
+ "arm,versatile-cm-auxosc", of_versatile_cm_osc_setup);