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Diffstat (limited to 'arch/sh/kernel/cpu/sh4/clock-sh7780.c')
-rw-r--r--arch/sh/kernel/cpu/sh4/clock-sh7780.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/arch/sh/kernel/cpu/sh4/clock-sh7780.c b/arch/sh/kernel/cpu/sh4/clock-sh7780.c
deleted file mode 100644
index 9e6a216750c..00000000000
--- a/arch/sh/kernel/cpu/sh4/clock-sh7780.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * arch/sh/kernel/cpu/sh4/clock-sh7780.c
- *
- * SH7780 support for the clock framework
- *
- * 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 <linux/init.h>
-#include <linux/kernel.h>
-#include <asm/clock.h>
-#include <asm/freq.h>
-#include <asm/io.h>
-
-static int ifc_divisors[] = { 2, 4 };
-static int bfc_divisors[] = { 1, 1, 1, 8, 12, 16, 24, 1 };
-static int pfc_divisors[] = { 1, 24, 24, 1 };
-static int cfc_divisors[] = { 1, 1, 4, 1, 6, 1, 1, 1 };
-
-static void master_clk_init(struct clk *clk)
-{
- clk->rate *= pfc_divisors[ctrl_inl(FRQCR) & 0x0003];
-}
-
-static struct clk_ops sh7780_master_clk_ops = {
- .init = master_clk_init,
-};
-
-static void module_clk_recalc(struct clk *clk)
-{
- int idx = (ctrl_inl(FRQCR) & 0x0003);
- clk->rate = clk->parent->rate / pfc_divisors[idx];
-}
-
-static struct clk_ops sh7780_module_clk_ops = {
- .recalc = module_clk_recalc,
-};
-
-static void bus_clk_recalc(struct clk *clk)
-{
- int idx = ((ctrl_inl(FRQCR) >> 16) & 0x0007);
- clk->rate = clk->parent->rate / bfc_divisors[idx];
-}
-
-static struct clk_ops sh7780_bus_clk_ops = {
- .recalc = bus_clk_recalc,
-};
-
-static void cpu_clk_recalc(struct clk *clk)
-{
- int idx = ((ctrl_inl(FRQCR) >> 24) & 0x0001);
- clk->rate = clk->parent->rate / ifc_divisors[idx];
-}
-
-static struct clk_ops sh7780_cpu_clk_ops = {
- .recalc = cpu_clk_recalc,
-};
-
-static struct clk_ops *sh7780_clk_ops[] = {
- &sh7780_master_clk_ops,
- &sh7780_module_clk_ops,
- &sh7780_bus_clk_ops,
- &sh7780_cpu_clk_ops,
-};
-
-void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
-{
- if (idx < ARRAY_SIZE(sh7780_clk_ops))
- *ops = sh7780_clk_ops[idx];
-}
-
-static void shyway_clk_recalc(struct clk *clk)
-{
- int idx = ((ctrl_inl(FRQCR) >> 20) & 0x0007);
- clk->rate = clk->parent->rate / cfc_divisors[idx];
-}
-
-static struct clk_ops sh7780_shyway_clk_ops = {
- .recalc = shyway_clk_recalc,
-};
-
-static struct clk sh7780_shyway_clk = {
- .name = "shyway_clk",
- .flags = CLK_ALWAYS_ENABLED,
- .ops = &sh7780_shyway_clk_ops,
-};
-
-/*
- * Additional SH7780-specific on-chip clocks that aren't already part of the
- * clock framework
- */
-static struct clk *sh7780_onchip_clocks[] = {
- &sh7780_shyway_clk,
-};
-
-static int __init sh7780_clk_init(void)
-{
- struct clk *clk = clk_get(NULL, "master_clk");
- int i;
-
- for (i = 0; i < ARRAY_SIZE(sh7780_onchip_clocks); i++) {
- struct clk *clkp = sh7780_onchip_clocks[i];
-
- clkp->parent = clk;
- clk_register(clkp);
- clk_enable(clkp);
- }
-
- /*
- * Now that we have the rest of the clocks registered, we need to
- * force the parent clock to propagate so that these clocks will
- * automatically figure out their rate. We cheat by handing the
- * parent clock its current rate and forcing child propagation.
- */
- clk_set_rate(clk, clk_get_rate(clk));
-
- clk_put(clk);
-
- return 0;
-}
-
-arch_initcall(sh7780_clk_init);
-