diff options
Diffstat (limited to 'arch/sh/kernel/cpu/clock-cpg.c')
-rw-r--r-- | arch/sh/kernel/cpu/clock-cpg.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/clock-cpg.c b/arch/sh/kernel/cpu/clock-cpg.c new file mode 100644 index 000000000000..b78c237ab366 --- /dev/null +++ b/arch/sh/kernel/cpu/clock-cpg.c @@ -0,0 +1,62 @@ +#include <linux/clk.h> +#include <linux/compiler.h> +#include <asm/clock.h> + +#ifdef CONFIG_SH_CLK_CPG_LEGACY +static struct clk master_clk = { + .name = "master_clk", + .flags = CLK_ENABLE_ON_INIT, + .rate = CONFIG_SH_PCLK_FREQ, +}; + +static struct clk peripheral_clk = { + .name = "peripheral_clk", + .parent = &master_clk, + .flags = CLK_ENABLE_ON_INIT, +}; + +static struct clk bus_clk = { + .name = "bus_clk", + .parent = &master_clk, + .flags = CLK_ENABLE_ON_INIT, +}; + +static struct clk cpu_clk = { + .name = "cpu_clk", + .parent = &master_clk, + .flags = CLK_ENABLE_ON_INIT, +}; + +/* + * The ordering of these clocks matters, do not change it. + */ +static struct clk *onchip_clocks[] = { + &master_clk, + &peripheral_clk, + &bus_clk, + &cpu_clk, +}; + +int __init __deprecated cpg_clk_init(void) +{ + int i, ret = 0; + + for (i = 0; i < ARRAY_SIZE(onchip_clocks); i++) { + struct clk *clk = onchip_clocks[i]; + arch_init_clk_ops(&clk->ops, i); + if (clk->ops) + ret |= clk_register(clk); + } + + return ret; +} + +/* + * Placeholder for compatability, until the lazy CPUs do this + * on their own. + */ +int __init __weak arch_clk_init(void) +{ + return cpg_clk_init(); +} +#endif /* CONFIG_SH_CPG_CLK_LEGACY */ |