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clock: Add module actual frequency getter

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CTCaer 2020-12-26 17:25:23 +02:00
parent d15f958b48
commit 15afdf53e4
2 changed files with 215 additions and 15 deletions
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72
bdk/soc/clock.c
View file

@ -21,6 +21,23 @@
#include <storage/sdmmc.h>
#include <utils/util.h>
typedef struct _clock_osc_t
{
u32 freq;
u16 min;
u16 max;
} clock_osc_t;
static const clock_osc_t _clock_osc_cnt[] = {
{ 12000, 706, 757 },
{ 13000, 766, 820 },
{ 16800, 991, 1059 },
{ 19200, 1133, 1210 },
{ 26000, 1535, 1638 },
{ 38400, 2268, 2418 },
{ 48000, 2836, 3023 }
};
/* clock_t: reset, enable, source, index, clk_src, clk_div */
static const clock_t _clock_uart[] = {
@ -42,7 +59,7 @@ static const clock_t _clock_i2c[] = {
};
static clock_t _clock_se = {
CLK_RST_CONTROLLER_RST_DEVICES_V, CLK_RST_CONTROLLER_CLK_OUT_ENB_V, CLK_RST_CONTROLLER_CLK_SOURCE_SE, CLK_V_SE, 0, 0
CLK_RST_CONTROLLER_RST_DEVICES_V, CLK_RST_CONTROLLER_CLK_OUT_ENB_V, CLK_RST_CONTROLLER_CLK_SOURCE_SE, CLK_V_SE, 0, 0 // 408MHz.
};
static clock_t _clock_tzram = {
@ -50,19 +67,19 @@ static clock_t _clock_tzram = {
};
static clock_t _clock_host1x = {
CLK_RST_CONTROLLER_RST_DEVICES_L, CLK_RST_CONTROLLER_CLK_OUT_ENB_L, CLK_RST_CONTROLLER_CLK_SOURCE_HOST1X, CLK_L_HOST1X, 4, 3
CLK_RST_CONTROLLER_RST_DEVICES_L, CLK_RST_CONTROLLER_CLK_OUT_ENB_L, CLK_RST_CONTROLLER_CLK_SOURCE_HOST1X, CLK_L_HOST1X, 4, 3 // 163.2MHz.
};
static clock_t _clock_tsec = {
CLK_RST_CONTROLLER_RST_DEVICES_U, CLK_RST_CONTROLLER_CLK_OUT_ENB_U, CLK_RST_CONTROLLER_CLK_SOURCE_TSEC, CLK_U_TSEC, 0, 2
CLK_RST_CONTROLLER_RST_DEVICES_U, CLK_RST_CONTROLLER_CLK_OUT_ENB_U, CLK_RST_CONTROLLER_CLK_SOURCE_TSEC, CLK_U_TSEC, 0, 2 // 204MHz.
};
static clock_t _clock_sor_safe = {
CLK_RST_CONTROLLER_RST_DEVICES_Y, CLK_RST_CONTROLLER_CLK_OUT_ENB_Y, CLK_NO_SOURCE, CLK_Y_SOR_SAFE, 0, 0
};
static clock_t _clock_sor0 = {
CLK_RST_CONTROLLER_RST_DEVICES_X, CLK_RST_CONTROLLER_CLK_OUT_ENB_X, CLK_NO_SOURCE, CLK_X_SOR0, 0, 0
CLK_RST_CONTROLLER_RST_DEVICES_X, CLK_RST_CONTROLLER_CLK_OUT_ENB_X, CLK_NOT_USED, CLK_X_SOR0, 0, 0
};
static clock_t _clock_sor1 = {
CLK_RST_CONTROLLER_RST_DEVICES_X, CLK_RST_CONTROLLER_CLK_OUT_ENB_X, CLK_RST_CONTROLLER_CLK_SOURCE_SOR1, CLK_X_SOR1, 0, 2
CLK_RST_CONTROLLER_RST_DEVICES_X, CLK_RST_CONTROLLER_CLK_OUT_ENB_X, CLK_RST_CONTROLLER_CLK_SOURCE_SOR1, CLK_X_SOR1, 0, 2 //204MHz.
};
static clock_t _clock_kfuse = {
CLK_RST_CONTROLLER_RST_DEVICES_H, CLK_RST_CONTROLLER_CLK_OUT_ENB_H, CLK_NO_SOURCE, CLK_H_KFUSE, 0, 0
@ -72,11 +89,11 @@ static clock_t _clock_cl_dvfs = {
CLK_RST_CONTROLLER_RST_DEVICES_W, CLK_RST_CONTROLLER_CLK_OUT_ENB_W, CLK_NO_SOURCE, CLK_W_DVFS, 0, 0
};
static clock_t _clock_coresight = {
CLK_RST_CONTROLLER_RST_DEVICES_U, CLK_RST_CONTROLLER_CLK_OUT_ENB_U, CLK_RST_CONTROLLER_CLK_SOURCE_CSITE, CLK_U_CSITE, 0, 4
CLK_RST_CONTROLLER_RST_DEVICES_U, CLK_RST_CONTROLLER_CLK_OUT_ENB_U, CLK_RST_CONTROLLER_CLK_SOURCE_CSITE, CLK_U_CSITE, 0, 4 // 136MHz.
};
static clock_t _clock_pwm = {
CLK_RST_CONTROLLER_RST_DEVICES_L, CLK_RST_CONTROLLER_CLK_OUT_ENB_L, CLK_RST_CONTROLLER_CLK_SOURCE_PWM, CLK_L_PWM, 6, 4 // Fref: 6.4MHz. Stock PLLP / 54: 7.55MHz.
CLK_RST_CONTROLLER_RST_DEVICES_L, CLK_RST_CONTROLLER_CLK_OUT_ENB_L, CLK_RST_CONTROLLER_CLK_SOURCE_PWM, CLK_L_PWM, 6, 4 // Fref: 6.4MHz. HOS: PLLP / 54 = 7.55MHz.
};
static clock_t _clock_sdmmc_legacy_tm = {
@ -721,3 +738,44 @@ void clock_sdmmc_disable(u32 id)
_clock_sdmmc_is_reset(id);
_clock_disable_pllc4(BIT(id));
}
u32 clock_get_osc_freq()
{
CLOCK(CLK_RST_CONTROLLER_OSC_FREQ_DET) = OSC_FREQ_DET_TRIG | (2 - 1); // 2 periods of 32.76KHz window.
while (CLOCK(CLK_RST_CONTROLLER_OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY)
;
u32 cnt = (CLOCK(CLK_RST_CONTROLLER_OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_CNT);
CLOCK(CLK_RST_CONTROLLER_OSC_FREQ_DET) = 0;
// Return frequency in KHz.
for (u32 i = 0; i < ARRAY_SIZE(_clock_osc_cnt); i++)
if (cnt >= _clock_osc_cnt[i].min && cnt <= _clock_osc_cnt[i].max)
return _clock_osc_cnt[i].freq;
return 0;
}
u32 clock_get_dev_freq(clock_pto_id_t id)
{
u32 val = ((id & PTO_SRC_SEL_MASK) << PTO_SRC_SEL_SHIFT) | PTO_DIV_SEL_DIV1 | PTO_CLK_ENABLE | (16 - 1); // 16 periods of 32.76KHz window.
CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_CNTL) = val;
usleep(2);
CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_CNTL) = val | PTO_CNT_RST;
usleep(2);
CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_CNTL) = val;
usleep(2);
CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_CNTL) = val | PTO_CNT_EN;
usleep(502);
while (CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_STATUS) & PTO_CLK_CNT_BUSY)
;
u32 cnt = CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_STATUS) & PTO_CLK_CNT;
CLOCK(CLK_RST_CONTROLLER_PTO_CLK_CNT_CNTL) = 0;
u32 freq = ((cnt << 8) | 0x3E) / 125;
return freq;
}

158
bdk/soc/clock.h
View file

@ -35,6 +35,10 @@
#define CLK_RST_CONTROLLER_CLK_SYSTEM_RATE 0x30
#define CLK_RST_CONTROLLER_MISC_CLK_ENB 0x48
#define CLK_RST_CONTROLLER_OSC_CTRL 0x50
#define CLK_RST_CONTROLLER_OSC_FREQ_DET 0x58
#define CLK_RST_CONTROLLER_OSC_FREQ_DET_STATUS 0x5C
#define CLK_RST_CONTROLLER_PTO_CLK_CNT_CNTL 0x60
#define CLK_RST_CONTROLLER_PTO_CLK_CNT_STATUS 0x64
#define CLK_RST_CONTROLLER_PLLC_BASE 0x80
#define CLK_RST_CONTROLLER_PLLC_OUT 0x84
#define CLK_RST_CONTROLLER_PLLC_MISC 0x88
@ -156,6 +160,7 @@
#define CLK_RST_CONTROLLER_CLK_SOURCE_UARTAPE 0x710
#define CLK_NO_SOURCE 0x0
#define CLK_NOT_USED 0x0
/*! PLL control and status bits */
#define PLLCX_BASE_LOCK BIT(27)
@ -178,6 +183,140 @@
#define UTMIPLL_LOCK BIT(31)
/*! PTO_CLK_CNT */
#define PTO_REF_CLK_WIN_CFG_MASK 0xF
#define PTO_REF_CLK_WIN_CFG_16P 0xF
#define PTO_CNT_EN BIT(9)
#define PTO_CNT_RST BIT(10)
#define PTO_CLK_ENABLE BIT(13)
#define PTO_SRC_SEL_SHIFT 14
#define PTO_SRC_SEL_MASK 0x1FF
#define PTO_DIV_SEL_MASK (3 << 23)
#define PTO_DIV_SEL_GATED (0 << 23)
#define PTO_DIV_SEL_DIV1 (1 << 23)
#define PTO_DIV_SEL_DIV2_RISING (2 << 23)
#define PTO_DIV_SEL_DIV2_FALLING (3 << 23)
#define PTO_DIV_SEL_CPU_EARLY (0 << 23)
#define PTO_DIV_SEL_CPU_LATE (1 << 23)
#define PTO_CLK_CNT_BUSY BIT(31)
#define PTO_CLK_CNT 0xFFFFFF
/*! OSC_FREQ_DET */
#define OSC_REF_CLK_WIN_CFG_MASK 0xF
#define OSC_FREQ_DET_TRIG BIT(31)
#define OSC_FREQ_DET_BUSY BIT(31)
#define OSC_FREQ_DET_CNT 0xFFFF
/*! PLLs omitted as they need PTO enabled in MISC registers. Norm div is 2. */
typedef enum _clock_pto_id_t
{
CLK_PTO_PCLK_SYS = 0x06,
CLK_PTO_HCLK_SYS = 0x07,
CLK_PTO_UTMIP_240 = 0x0C,
CLK_PTO_CCLK_G = 0x12,
CLK_PTO_CCLK_G_DIV2 = 0x13,
CLK_PTO_SPI1 = 0x17,
CLK_PTO_SPI2 = 0x18,
CLK_PTO_SPI3 = 0x19,
CLK_PTO_SPI4 = 0x1A,
CLK_PTO_MAUD = 0x1B,
CLK_PTO_SCLK = 0x1C,
CLK_PTO_SDMMC1 = 0x20,
CLK_PTO_SDMMC2 = 0x21,
CLK_PTO_SDMMC3 = 0x22,
CLK_PTO_SDMMC4 = 0x23,
CLK_PTO_EMC = 0x24,
CLK_PTO_MSELECT = 0x2F,
CLK_PTO_VIC = 0x36,
CLK_PTO_NVDEC = 0x39,
CLK_PTO_NVENC = 0x3A,
CLK_PTO_NVJPG = 0x3B,
CLK_PTO_TSEC = 0x3C,
CLK_PTO_TSECB = 0x3D,
CLK_PTO_SE = 0x3E,
CLK_PTO_DSIA_LP = 0x62,
CLK_PTO_ISP = 0x64,
CLK_PTO_MC = 0x6A,
CLK_PTO_ACTMON = 0x6B,
CLK_PTO_CSITE = 0x6C,
CLK_PTO_HOST1X = 0x6F,
CLK_PTO_SE_2 = 0x74, // Same as CLK_PTO_SE.
CLK_PTO_SOC_THERM = 0x75,
CLK_PTO_TSEC_2 = 0x77, // Same as CLK_PTO_TSEC.
CLK_PTO_ACLK = 0x7C,
CLK_PTO_QSPI = 0x7D,
CLK_PTO_I2S1 = 0x80,
CLK_PTO_I2S2 = 0x81,
CLK_PTO_I2S3 = 0x82,
CLK_PTO_I2S4 = 0x83,
CLK_PTO_I2S5 = 0x84,
CLK_PTO_AHUB = 0x85,
CLK_PTO_APE = 0x86,
CLK_PTO_DVFS_SOC = 0x88,
CLK_PTO_DVFS_REF = 0x89,
CLK_PTO_SPDIF = 0x8F,
CLK_PTO_SPDIF_IN = 0x90,
CLK_PTO_UART_FST_MIPI_CAL = 0x91,
CLK_PTO_PWM = 0x93,
CLK_PTO_I2C1 = 0x94,
CLK_PTO_I2C2 = 0x95,
CLK_PTO_I2C3 = 0x96,
CLK_PTO_I2C4 = 0x97,
CLK_PTO_I2C5 = 0x98,
CLK_PTO_I2C6 = 0x99,
CLK_PTO_I2C_SLOW = 0x9A,
CLK_PTO_UARTAPE = 0x9B,
CLK_PTO_EXTPERIPH1 = 0x9D,
CLK_PTO_EXTPERIPH2 = 0x9E,
CLK_PTO_ENTROPY = 0xA0,
CLK_PTO_UARTA = 0xA1,
CLK_PTO_UARTB = 0xA2,
CLK_PTO_UARTC = 0xA3,
CLK_PTO_UARTD = 0xA4,
CLK_PTO_OWR = 0xA5,
CLK_PTO_HDA2CODEC_2X = 0xA7,
CLK_PTO_HDA = 0xA8,
CLK_PTO_SDMMC_LEGACY_TM = 0xAB,
CLK_PTO_SOR0 = 0xC0,
CLK_PTO_SOR1 = 0xC1,
CLK_PTO_DISP2 = 0xC4,
CLK_PTO_DISP1 = 0xC5,
CLK_PTO_XUSB_FALCON = 0x110,
CLK_PTO_XUSB_FS = 0x136,
CLK_PTO_XUSB_SS_HOST_DEV = 0x137,
CLK_PTO_XUSB_CORE_HOST = 0x138,
CLK_PTO_XUSB_CORE_DEV = 0x139,
} clock_pto_id_t;
/*
* CLOCK Peripherals:
* L 0 - 31
@ -216,7 +355,7 @@ enum CLK_L_DEV
CLK_L_USBD = 22,
CLK_L_ISP = 23,
CLK_L_3D = 24, // HIDDEN.
//CLK_L_ = 25,
CLK_L_IDE = 25, // RESERVED.
CLK_L_DISP2 = 26,
CLK_L_DISP1 = 27,
CLK_L_HOST1X = 28,
@ -244,11 +383,11 @@ enum CLK_H_DEV
CLK_H_SPI3 = 14,
CLK_H_I2C5 = 15,
CLK_H_DSI = 16,
//CLK_H_ = 17,
CLK_H_TVO = 17, // RESERVED.
CLK_H_HSI = 18, // HIDDEN.
CLK_H_HDMI = 19, // HIDDEN.
CLK_H_CSI = 20,
//CLK_H_ = 21,
CLK_H_TVDAC = 21, // RESERVED.
CLK_H_I2C2 = 22,
CLK_H_UARTC = 23,
CLK_H_MIPI_CAL = 24,
@ -263,14 +402,14 @@ enum CLK_H_DEV
enum CLK_U_DEV
{
//CLK_U_ = 0,
CLK_U_SPEEDO = 0, // RESERVED.
CLK_U_UARTD = 1,
CLK_U_UARTE = 2, // HIDDEN.
CLK_U_I2C3 = 3,
CLK_U_SPI4 = 4,
CLK_U_SDMMC3 = 5,
CLK_U_PCIE = 6,
CLK_U_UNUSED = 7, // RESERVED
CLK_U_OWR = 7, // RESERVED.
CLK_U_AFI = 8,
CLK_U_CSITE = 9,
CLK_U_PCIEXCLK = 10, // Only reset.
@ -444,9 +583,9 @@ enum CLK_Y_DEV
/*! Generic clock descriptor. */
typedef struct _clock_t
{
u32 reset;
u32 enable;
u32 source;
u16 reset;
u16 enable;
u16 source;
u8 index;
u8 clk_src;
u8 clk_div;
@ -494,4 +633,7 @@ int clock_sdmmc_is_not_reset_and_enabled(u32 id);
void clock_sdmmc_enable(u32 id, u32 val);
void clock_sdmmc_disable(u32 id);
u32 clock_get_osc_freq();
u32 clock_get_dev_freq(clock_pto_id_t id);
#endif