113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
#ifndef _CPU_CLOCK_
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#define _CPU_CLOCK_
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#include "typedef.h"
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int clk_early_init();
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enum sys_vdd_index {
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SYSVDD_VOL_SEL_INDEX = 0,
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VDC14_VOL_SEL_INDEX,
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VDDIOM_VOL_SEL_INDEX,
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SYS_VDD_NUM,
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};
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enum sys_clock_index {
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SYS_CLK_SEL_INDEX = 0,
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HSB_CLK_SEL_INDEX,
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SFC_CLK_SEL_INDEX,
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LSB_CLK_SEL_INDEX,
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P33_CLK_SEL_INDEX,
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SDRAM_CLK_SEL_INDEX,
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SYS_CLK_NUM,
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};
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enum pc0_clock_out_index {
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BT_OSC_CLK_OUT = 1,
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RTC_OSL_OUT,
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CTM_IN_OUT,
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LSB_CLK_OUT,
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HSB_CLK_OUT,
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SFC_CLK_OUT,
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HCO_CLK_OUT,
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};
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enum pa4_clock_out_index {
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RC_CLK_OUT = 1,//16M 250K
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LRC_CLK_OUT,//32K或200K
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WL_RCCL_CLK_OUT,
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DMC_CLK_OUT,//sdram clock
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RING_CLK_OUT,
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OSC_CLK_OUT,
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PLL_SYS_CLK_OUT,
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};
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#define MHZ_UNIT 1000000L
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#define SYS_CLK_320M 320000000L
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#define SYS_CLK_240M 240000000L
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#define SYS_CLK_192M 192000000L
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#define SYS_CLK_160M 160000000L
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#define SYS_CLK_120M 120000000L
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#define SYS_CLK_96M 96000000L
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#define SYS_CLK_48M 48000000L
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#define SYS_CLK_40M 40000000L
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#define SYS_CLK_24M 24000000L
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#define SYS_CLK_12M 12000000L
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#define SYS_CLK_8M 8000000L
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#define SYS_CLK_4M 4800000L
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#define SDRAM_CLK_MIN 96000000L
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/*
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* system enter critical and exit critical handle
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* */
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struct clock_critical_handler {
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void (*enter)();
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void (*exit)();
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};
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#define CLOCK_CRITICAL_HANDLE_REG(name, enter, exit) \
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const struct clock_critical_handler clock_##name \
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SEC_USED(.clock_critical_txt) = {enter, exit};
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extern struct clock_critical_handler clock_critical_handler_begin[];
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extern struct clock_critical_handler clock_critical_handler_end[];
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#define list_for_each_loop_clock_critical(h) \
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for (h=clock_critical_handler_begin; h<clock_critical_handler_end; h++)
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int clk_get(const char *name);
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int clk_set(const char *name, int clk);
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void clk_out_pc0(enum pc0_clock_out_index index);
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void clk_out_pa4(enum pa4_clock_out_index index);
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int sys_clk_source_set(char index);//0:BT_OSC,1:RTC_SOC,2:PLL_OSC
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void sys_clk_source_resume(int value);
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void sys_clk_source_rc_clk_on(int is_16M);//RC_16M / RC_250K
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void sys_clk_source_rc_clk_off(void);
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u32 clk_get_osc_cap();
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//**********************应用层使用API****************************//
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//系统空闲模式时钟切换函数：系统24M和Sdram时钟固定在120M
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int system_clock_set_idle(void);
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//系统时钟切换函数：时钟参数，clk范围：24000000 - 396000000 （24M-396M）
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int system_clock_set(u32 clk);
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//系统时钟+sdram时钟切换sys_clk时钟参数，范围：24000000 - 396000000 （24M-396M）；sdram_clk时钟参数，范围：96000000 - 244000000 （96M-244M）
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int system_sdram_clock_set(u32 sys_clk, u32 sdram_clk);
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//sdram时钟切换：clk时钟参数，范围：96000000 - 244000000 （96M-244M）
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int sdram_clock_set(u32 clk);
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//恢复SDK默认系统+sdram时钟：恢复到系统上电的初始值
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int system_clock_set_default(void);
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//自定义VDD和CLOCK等级
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int system_vdd_clock_set(char index);
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int system_clock_hsb_lsb_div(u8 hsb_div1_4, u8 lsb_div1_8);//与system_clock_hsb_lsb_div_resume成对使用,hsb_clk = sys_pll / hsb_div1_4,lsb_clk = sys_pll / hsb_div1_4 / lsb_div1_8
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void system_clock_hsb_lsb_div_resume(int div);//与system_clock_hsb_lsb_div成对使用
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#endif
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