187 lines
6.7 KiB
C
187 lines
6.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
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*/
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#ifndef _LPC32XX_CLK_H
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#define _LPC32XX_CLK_H
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#include <asm/types.h>
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#define OSC_CLK_FREQUENCY 13000000
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#define RTC_CLK_FREQUENCY 32768
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/* Clocking and Power Control Registers */
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struct clk_pm_regs {
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u32 reserved0[5];
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u32 boot_map; /* Boot Map Control Register */
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u32 p0_intr_er; /* Port 0/1 Start and Interrupt Enable */
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u32 usbdiv_ctrl; /* USB Clock Pre-Divide Register */
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/* Internal Start Signal Sources Registers */
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u32 start_er_int; /* Start Enable Register */
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u32 start_rsr_int; /* Start Raw Status Register */
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u32 start_sr_int; /* Start Status Register */
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u32 start_apr_int; /* Start Activation Polarity Register */
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/* Device Pin Start Signal Sources Registers */
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u32 start_er_pin; /* Start Enable Register */
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u32 start_rsr_pin; /* Start Raw Status Register */
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u32 start_sr_pin; /* Start Status Register */
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u32 start_apr_pin; /* Start Activation Polarity Register */
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/* Clock Control Registers */
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u32 hclkdiv_ctrl; /* HCLK Divider Control Register */
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u32 pwr_ctrl; /* Power Control Register */
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u32 pll397_ctrl; /* PLL397 Control Register */
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u32 osc_ctrl; /* Main Oscillator Control Register */
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u32 sysclk_ctrl; /* SYSCLK Control Register */
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u32 lcdclk_ctrl; /* LCD Clock Control Register */
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u32 hclkpll_ctrl; /* HCLK PLL Control Register */
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u32 reserved1;
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u32 adclk_ctrl1; /* ADC Clock Control1 Register */
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u32 usb_ctrl; /* USB Control Register */
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u32 sdramclk_ctrl; /* SDRAM Clock Control Register */
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u32 ddr_lap_nom; /* DDR Calibration Nominal Value */
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u32 ddr_lap_count; /* DDR Calibration Measured Value */
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u32 ddr_cal_delay; /* DDR Calibration Delay Value */
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u32 ssp_ctrl; /* SSP Control Register */
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u32 i2s_ctrl; /* I2S Clock Control Register */
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u32 ms_ctrl; /* Memory Card Control Register */
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u32 reserved2[3];
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u32 macclk_ctrl; /* Ethernet MAC Clock Control Register */
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u32 reserved3[4];
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u32 test_clk; /* Test Clock Selection Register */
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u32 sw_int; /* Software Interrupt Register */
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u32 i2cclk_ctrl; /* I2C Clock Control Register */
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u32 keyclk_ctrl; /* Keyboard Scan Clock Control Register */
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u32 adclk_ctrl; /* ADC Clock Control Register */
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u32 pwmclk_ctrl; /* PWM Clock Control Register */
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u32 timclk_ctrl; /* Watchdog and Highspeed Timer Control */
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u32 timclk_ctrl1; /* Motor and Timer Clock Control */
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u32 spi_ctrl; /* SPI Control Register */
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u32 flashclk_ctrl; /* NAND Flash Clock Control Register */
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u32 reserved4;
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u32 u3clk; /* UART 3 Clock Control Register */
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u32 u4clk; /* UART 4 Clock Control Register */
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u32 u5clk; /* UART 5 Clock Control Register */
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u32 u6clk; /* UART 6 Clock Control Register */
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u32 irdaclk; /* IrDA Clock Control Register */
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u32 uartclk_ctrl; /* UART Clock Control Register */
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u32 dmaclk_ctrl; /* DMA Clock Control Register */
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u32 autoclk_ctrl; /* Autoclock Control Register */
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};
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/* HCLK Divider Control Register bits */
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#define CLK_HCLK_DDRAM_MASK (0x3 << 7)
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#define CLK_HCLK_DDRAM_HALF (0x2 << 7)
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#define CLK_HCLK_DDRAM_NOMINAL (0x1 << 7)
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#define CLK_HCLK_DDRAM_STOPPED (0x0 << 7)
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#define CLK_HCLK_PERIPH_DIV_MASK (0x1F << 2)
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#define CLK_HCLK_PERIPH_DIV(n) ((((n) - 1) & 0x1F) << 2)
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#define CLK_HCLK_ARM_PLL_DIV_MASK (0x3 << 0)
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#define CLK_HCLK_ARM_PLL_DIV_4 (0x2 << 0)
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#define CLK_HCLK_ARM_PLL_DIV_2 (0x1 << 0)
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#define CLK_HCLK_ARM_PLL_DIV_1 (0x0 << 0)
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/* Power Control Register bits */
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#define CLK_PWR_HCLK_RUN_PERIPH (1 << 10)
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#define CLK_PWR_EMC_SREFREQ (1 << 9)
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#define CLK_PWR_EMC_SREFREQ_UPDATE (1 << 8)
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#define CLK_PWR_SDRAM_SREFREQ (1 << 7)
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#define CLK_PWR_HIGHCORE_LEVEL (1 << 5)
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#define CLK_PWR_SYSCLKEN_LEVEL (1 << 4)
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#define CLK_PWR_SYSCLKEN_CTRL (1 << 3)
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#define CLK_PWR_NORMAL_RUN (1 << 2)
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#define CLK_PWR_HIGHCORE_CTRL (1 << 1)
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#define CLK_PWR_STOP_MODE (1 << 0)
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/* SYSCLK Control Register bits */
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#define CLK_SYSCLK_PLL397 (1 << 1)
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#define CLK_SYSCLK_MUX (1 << 0)
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/* HCLK PLL Control Register bits */
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#define CLK_HCLK_PLL_OPERATING (1 << 16)
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#define CLK_HCLK_PLL_BYPASS (1 << 15)
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#define CLK_HCLK_PLL_DIRECT (1 << 14)
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#define CLK_HCLK_PLL_FEEDBACK (1 << 13)
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#define CLK_HCLK_PLL_POSTDIV_MASK (0x3 << 11)
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#define CLK_HCLK_PLL_POSTDIV_16 (0x3 << 11)
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#define CLK_HCLK_PLL_POSTDIV_8 (0x2 << 11)
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#define CLK_HCLK_PLL_POSTDIV_4 (0x1 << 11)
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#define CLK_HCLK_PLL_POSTDIV_2 (0x0 << 11)
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#define CLK_HCLK_PLL_PREDIV_MASK (0x3 << 9)
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#define CLK_HCLK_PLL_PREDIV_4 (0x3 << 9)
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#define CLK_HCLK_PLL_PREDIV_3 (0x2 << 9)
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#define CLK_HCLK_PLL_PREDIV_2 (0x1 << 9)
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#define CLK_HCLK_PLL_PREDIV_1 (0x0 << 9)
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#define CLK_HCLK_PLL_FEEDBACK_DIV_MASK (0xFF << 1)
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#define CLK_HCLK_PLL_FEEDBACK_DIV(n) ((((n) - 1) & 0xFF) << 1)
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#define CLK_HCLK_PLL_LOCKED (1 << 0)
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/* Ethernet MAC Clock Control Register bits */
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#define CLK_MAC_RMII (0x3 << 3)
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#define CLK_MAC_MII (0x1 << 3)
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#define CLK_MAC_MASTER (1 << 2)
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#define CLK_MAC_SLAVE (1 << 1)
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#define CLK_MAC_REG (1 << 0)
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/* I2C Clock Control Register bits */
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#define CLK_I2C2_ENABLE (1 << 1)
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#define CLK_I2C1_ENABLE (1 << 0)
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/* Timer Clock Control1 Register bits */
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#define CLK_TIMCLK_MOTOR (1 << 6)
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#define CLK_TIMCLK_TIMER3 (1 << 5)
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#define CLK_TIMCLK_TIMER2 (1 << 4)
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#define CLK_TIMCLK_TIMER1 (1 << 3)
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#define CLK_TIMCLK_TIMER0 (1 << 2)
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#define CLK_TIMCLK_TIMER5 (1 << 1)
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#define CLK_TIMCLK_TIMER4 (1 << 0)
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/* Timer Clock Control Register bits */
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#define CLK_TIMCLK_HSTIMER (1 << 1)
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#define CLK_TIMCLK_WATCHDOG (1 << 0)
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/* UART Clock Control Register bits */
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#define CLK_UART(n) (1 << ((n) - 3))
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/* UARTn Clock Select Registers bits */
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#define CLK_UART_HCLK (1 << 16)
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#define CLK_UART_X_DIV(n) (((n) & 0xFF) << 8)
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#define CLK_UART_Y_DIV(n) (((n) & 0xFF) << 0)
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/* DMA Clock Control Register bits */
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#define CLK_DMA_ENABLE (1 << 0)
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/* NAND Clock Control Register bits */
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#define CLK_NAND_SLC (1 << 0)
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#define CLK_NAND_MLC (1 << 1)
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#define CLK_NAND_SLC_SELECT (1 << 2)
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#define CLK_NAND_MLC_INT (1 << 5)
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/* SSP Clock Control Register bits */
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#define CLK_SSP0_ENABLE_CLOCK (1 << 0)
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/* SDRAMCLK register bits */
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#define CLK_SDRAM_DDR_SEL (1 << 1)
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/* USB control register definitions */
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#define CLK_USBCTRL_PLL_STS (1 << 0)
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#define CLK_USBCTRL_FDBK_PLUS1(n) (((n) & 0xFF) << 1)
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#define CLK_USBCTRL_POSTDIV_2POW(n) (((n) & 0x3) << 11)
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#define CLK_USBCTRL_PLL_PWRUP (1 << 16)
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#define CLK_USBCTRL_CLK_EN1 (1 << 17)
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#define CLK_USBCTRL_CLK_EN2 (1 << 18)
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#define CLK_USBCTRL_BUS_KEEPER (0x1 << 19)
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#define CLK_USBCTRL_USBHSTND_EN (1 << 21)
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#define CLK_USBCTRL_USBDVND_EN (1 << 22)
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#define CLK_USBCTRL_HCLK_EN (1 << 24)
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unsigned int get_sys_clk_rate(void);
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unsigned int get_hclk_pll_rate(void);
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unsigned int get_hclk_clk_div(void);
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unsigned int get_hclk_clk_rate(void);
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unsigned int get_periph_clk_div(void);
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unsigned int get_periph_clk_rate(void);
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unsigned int get_sdram_clk_rate(void);
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#endif /* _LPC32XX_CLK_H */
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