From a54c959d8be9d057b1a192e34a378b74dd81c5f6 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Sat, 1 Mar 2014 22:05:44 -0600 Subject: [PATCH] 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 Acked-by: Mike Turquette Acked-by: Arnd Bergmann Reviewed-by: Linus Walleij --- drivers/clk/versatile/Makefile | 3 +- .../{clk-integrator.c => clk-versatile.c} | 38 +++++++++++++++++-- 2 files changed, 36 insertions(+), 5 deletions(-) rename drivers/clk/versatile/{clk-integrator.c => clk-versatile.c} (63%) 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 similarity index 63% rename from drivers/clk/versatile/clk-integrator.c rename to 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); -- 2.39.5