From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- arch/sh/kernel/cpu/sh5/clock-sh5.c | 79 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 arch/sh/kernel/cpu/sh5/clock-sh5.c (limited to 'arch/sh/kernel/cpu/sh5/clock-sh5.c') diff --git a/arch/sh/kernel/cpu/sh5/clock-sh5.c b/arch/sh/kernel/cpu/sh5/clock-sh5.c new file mode 100644 index 00000000..c48b93d4 --- /dev/null +++ b/arch/sh/kernel/cpu/sh5/clock-sh5.c @@ -0,0 +1,79 @@ +/* + * arch/sh/kernel/cpu/sh5/clock-sh5.c + * + * SH-5 support for the clock framework + * + * Copyright (C) 2008 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include +#include +#include +#include + +static int ifc_table[] = { 2, 4, 6, 8, 10, 12, 16, 24 }; + +/* Clock, Power and Reset Controller */ +#define CPRC_BLOCK_OFF 0x01010000 +#define CPRC_BASE (PHYS_PERIPHERAL_BLOCK + CPRC_BLOCK_OFF) + +static unsigned long cprc_base; + +static void master_clk_init(struct clk *clk) +{ + int idx = (__raw_readl(cprc_base + 0x00) >> 6) & 0x0007; + clk->rate *= ifc_table[idx]; +} + +static struct sh_clk_ops sh5_master_clk_ops = { + .init = master_clk_init, +}; + +static unsigned long module_clk_recalc(struct clk *clk) +{ + int idx = (__raw_readw(cprc_base) >> 12) & 0x0007; + return clk->parent->rate / ifc_table[idx]; +} + +static struct sh_clk_ops sh5_module_clk_ops = { + .recalc = module_clk_recalc, +}; + +static unsigned long bus_clk_recalc(struct clk *clk) +{ + int idx = (__raw_readw(cprc_base) >> 3) & 0x0007; + return clk->parent->rate / ifc_table[idx]; +} + +static struct sh_clk_ops sh5_bus_clk_ops = { + .recalc = bus_clk_recalc, +}; + +static unsigned long cpu_clk_recalc(struct clk *clk) +{ + int idx = (__raw_readw(cprc_base) & 0x0007); + return clk->parent->rate / ifc_table[idx]; +} + +static struct sh_clk_ops sh5_cpu_clk_ops = { + .recalc = cpu_clk_recalc, +}; + +static struct sh_clk_ops *sh5_clk_ops[] = { + &sh5_master_clk_ops, + &sh5_module_clk_ops, + &sh5_bus_clk_ops, + &sh5_cpu_clk_ops, +}; + +void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx) +{ + cprc_base = (unsigned long)ioremap_nocache(CPRC_BASE, 1024); + BUG_ON(!cprc_base); + + if (idx < ARRAY_SIZE(sh5_clk_ops)) + *ops = sh5_clk_ops[idx]; +} -- cgit