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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>
hifive-unleashed-5.1
Rob Herring 2014-03-01 22:05:44 -06:00
parent 2e45278592
commit a54c959d8b
2 changed files with 36 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/clk/versatile/Makefile
View File

@ -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

38
drivers/clk/versatile/clk-integrator.c → drivers/clk/versatile/clk-versatile.c
View File

@ -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);