diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-01-26 20:48:39 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-01-26 20:48:39 +0000 |
commit | e388e46ebbf42cacf061b948c231006fbe4831f2 (patch) | |
tree | 5edf5631102c06d0179a1414820f85ccc6a19d73 /target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c | |
parent | 86f7e2834ff8cc45f639d4a22a8af4cfdff015df (diff) |
ramips: implement clock API for RT288x
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25125 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c')
-rw-r--r-- | target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c index e2328fe5eb..65e187d3ac 100644 --- a/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c +++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/setup.c @@ -14,6 +14,8 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/err.h> +#include <linux/clk.h> #include <asm/mips_machine.h> #include <asm/reboot.h> @@ -22,6 +24,7 @@ #include <asm/mach-ralink/common.h> #include <asm/mach-ralink/rt288x.h> #include <asm/mach-ralink/rt288x_regs.h> +#include "common.h" static void rt288x_restart(char *command) { @@ -44,27 +47,43 @@ unsigned int __cpuinit get_c0_compare_irq(void) void __init ramips_soc_setup(void) { + struct clk *clk; + rt288x_sysc_base = ioremap_nocache(RT2880_SYSC_BASE, RT2880_SYSC_SIZE); rt288x_memc_base = ioremap_nocache(RT2880_MEMC_BASE, RT2880_MEMC_SIZE); rt288x_detect_sys_type(); - rt288x_detect_sys_freq(); + rt288x_clocks_init(); + + clk = clk_get(NULL, "cpu"); + if (IS_ERR(clk)) + panic("unable to get CPU clock, err=%ld", PTR_ERR(clk)); printk(KERN_INFO "%s running at %lu.%02lu MHz\n", ramips_sys_type, - rt288x_cpu_freq / 1000000, - (rt288x_cpu_freq % 1000000) * 100 / 1000000); + clk_get_rate(clk) / 1000000, + (clk_get_rate(clk) % 1000000) * 100 / 1000000); _machine_restart = rt288x_restart; _machine_halt = rt288x_halt; pm_power_off = rt288x_halt; - ramips_early_serial_setup(0, RT2880_UART0_BASE, rt288x_sys_freq, + clk = clk_get(NULL, "uart"); + if (IS_ERR(clk)) + panic("unable to get UART clock, err=%ld", PTR_ERR(clk)); + + ramips_early_serial_setup(0, RT2880_UART0_BASE, clk_get_rate(clk), RT2880_INTC_IRQ_UART0); - ramips_early_serial_setup(1, RT2880_UART1_BASE, rt288x_sys_freq, + ramips_early_serial_setup(1, RT2880_UART1_BASE, clk_get_rate(clk), RT2880_INTC_IRQ_UART1); } void __init plat_time_init(void) { - mips_hpt_frequency = rt288x_cpu_freq / 2; + struct clk *clk; + + clk = clk_get(NULL, "cpu"); + if (IS_ERR(clk)) + panic("unable to get CPU clock, err=%ld", PTR_ERR(clk)); + + mips_hpt_frequency = clk_get_rate(clk) / 2; } |