diff options
Diffstat (limited to 'target/linux/adm8668/files/arch/mips/adm8668/clock.c')
| -rw-r--r-- | target/linux/adm8668/files/arch/mips/adm8668/clock.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/target/linux/adm8668/files/arch/mips/adm8668/clock.c b/target/linux/adm8668/files/arch/mips/adm8668/clock.c index 96d139e177..6c839a2474 100644 --- a/target/linux/adm8668/files/arch/mips/adm8668/clock.c +++ b/target/linux/adm8668/files/arch/mips/adm8668/clock.c @@ -22,12 +22,19 @@ static struct clk uart_clk = { .rate = ADM8668_UARTCLK_FREQ, }; +static struct clk sys_clk; + struct clk *clk_get(struct device *dev, const char *id) { - const char *name = dev_name(dev); + const char *lookup = id; + + if (dev) + lookup = dev_name(dev); - if (!strcmp(name, "apb:uart0")) + if (!strcmp(lookup, "apb:uart0")) return &uart_clk; + if (!strcmp(lookup, "sys")) + return &sys_clk; return ERR_PTR(-ENOENT); } @@ -54,3 +61,16 @@ void clk_put(struct clk *clk) { } EXPORT_SYMBOL(clk_put); + +void __init adm8668_init_clocks(void) +{ + u32 adj; + + /* adjustable clock selection + * CR3 bit 14~11, 0000 -> 175MHz, 0001 -> 180MHz, etc... + */ + adj = (ADM8668_CONFIG_REG(ADM8668_CR3) >> 11) & 0xf; + sys_clk.rate = SYS_CLOCK + adj * 5000000; + + pr_info("ADM8668 CPU clock: %lu MHz\n", sys_clk.rate / 1000000); +} |