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/sh2a/clock-sh7201.c | 85 ++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 arch/sh/kernel/cpu/sh2a/clock-sh7201.c (limited to 'arch/sh/kernel/cpu/sh2a/clock-sh7201.c') diff --git a/arch/sh/kernel/cpu/sh2a/clock-sh7201.c b/arch/sh/kernel/cpu/sh2a/clock-sh7201.c new file mode 100644 index 00000000..532a36c7 --- /dev/null +++ b/arch/sh/kernel/cpu/sh2a/clock-sh7201.c @@ -0,0 +1,85 @@ +/* + * arch/sh/kernel/cpu/sh2a/clock-sh7201.c + * + * SH7201 support for the clock framework + * + * Copyright (C) 2008 Peter Griffin + * + * Based on clock-sh4.c + * Copyright (C) 2005 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 +#include + +static const int pll1rate[]={1,2,3,4,6,8}; +static const int pfc_divisors[]={1,2,3,4,6,8,12}; +#define ifc_divisors pfc_divisors + +static unsigned int pll2_mult; + +static void master_clk_init(struct clk *clk) +{ + clk->rate = 10000000 * pll2_mult * + pll1rate[(__raw_readw(FREQCR) >> 8) & 0x0007]; +} + +static struct sh_clk_ops sh7201_master_clk_ops = { + .init = master_clk_init, +}; + +static unsigned long module_clk_recalc(struct clk *clk) +{ + int idx = (__raw_readw(FREQCR) & 0x0007); + return clk->parent->rate / pfc_divisors[idx]; +} + +static struct sh_clk_ops sh7201_module_clk_ops = { + .recalc = module_clk_recalc, +}; + +static unsigned long bus_clk_recalc(struct clk *clk) +{ + int idx = (__raw_readw(FREQCR) & 0x0007); + return clk->parent->rate / pfc_divisors[idx]; +} + +static struct sh_clk_ops sh7201_bus_clk_ops = { + .recalc = bus_clk_recalc, +}; + +static unsigned long cpu_clk_recalc(struct clk *clk) +{ + int idx = ((__raw_readw(FREQCR) >> 4) & 0x0007); + return clk->parent->rate / ifc_divisors[idx]; +} + +static struct sh_clk_ops sh7201_cpu_clk_ops = { + .recalc = cpu_clk_recalc, +}; + +static struct sh_clk_ops *sh7201_clk_ops[] = { + &sh7201_master_clk_ops, + &sh7201_module_clk_ops, + &sh7201_bus_clk_ops, + &sh7201_cpu_clk_ops, +}; + +void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx) +{ + if (test_mode_pin(MODE_PIN1 | MODE_PIN0)) + pll2_mult = 1; + else if (test_mode_pin(MODE_PIN1)) + pll2_mult = 2; + else + pll2_mult = 4; + + if (idx < ARRAY_SIZE(sh7201_clk_ops)) + *ops = sh7201_clk_ops[idx]; +} -- cgit