| /* |
| * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
| * MA 02110-1301, USA. |
| */ |
| |
| #ifndef _LPC32XX_CLK_H |
| #define _LPC32XX_CLK_H |
| |
| #include <asm/types.h> |
| |
| #define OSC_CLK_FREQUENCY 13000000 |
| #define RTC_CLK_FREQUENCY 32768 |
| |
| /* Clocking and Power Control Registers */ |
| struct clk_pm_regs { |
| u32 reserved0[5]; |
| u32 boot_map; /* Boot Map Control Register */ |
| u32 p0_intr_er; /* Port 0/1 Start and Interrupt Enable */ |
| u32 usbdiv_ctrl; /* USB Clock Pre-Divide Register */ |
| /* Internal Start Signal Sources Registers */ |
| u32 start_er_int; /* Start Enable Register */ |
| u32 start_rsr_int; /* Start Raw Status Register */ |
| u32 start_sr_int; /* Start Status Register */ |
| u32 start_apr_int; /* Start Activation Polarity Register */ |
| /* Device Pin Start Signal Sources Registers */ |
| u32 start_er_pin; /* Start Enable Register */ |
| u32 start_rsr_pin; /* Start Raw Status Register */ |
| u32 start_sr_pin; /* Start Status Register */ |
| u32 start_apr_pin; /* Start Activation Polarity Register */ |
| /* Clock Control Registers */ |
| u32 hclkdiv_ctrl; /* HCLK Divider Control Register */ |
| u32 pwr_ctrl; /* Power Control Register */ |
| u32 pll397_ctrl; /* PLL397 Control Register */ |
| u32 osc_ctrl; /* Main Oscillator Control Register */ |
| u32 sysclk_ctrl; /* SYSCLK Control Register */ |
| u32 lcdclk_ctrl; /* LCD Clock Control Register */ |
| u32 hclkpll_ctrl; /* HCLK PLL Control Register */ |
| u32 reserved1; |
| u32 adclk_ctrl1; /* ADC Clock Control1 Register */ |
| u32 usb_ctrl; /* USB Control Register */ |
| u32 sdramclk_ctrl; /* SDRAM Clock Control Register */ |
| u32 ddr_lap_nom; /* DDR Calibration Nominal Value */ |
| u32 ddr_lap_count; /* DDR Calibration Measured Value */ |
| u32 ddr_cal_delay; /* DDR Calibration Delay Value */ |
| u32 ssp_ctrl; /* SSP Control Register */ |
| u32 i2s_ctrl; /* I2S Clock Control Register */ |
| u32 ms_ctrl; /* Memory Card Control Register */ |
| u32 reserved2[3]; |
| u32 macclk_ctrl; /* Ethernet MAC Clock Control Register */ |
| u32 reserved3[4]; |
| u32 test_clk; /* Test Clock Selection Register */ |
| u32 sw_int; /* Software Interrupt Register */ |
| u32 i2cclk_ctrl; /* I2C Clock Control Register */ |
| u32 keyclk_ctrl; /* Keyboard Scan Clock Control Register */ |
| u32 adclk_ctrl; /* ADC Clock Control Register */ |
| u32 pwmclk_ctrl; /* PWM Clock Control Register */ |
| u32 timclk_ctrl; /* Watchdog and Highspeed Timer Control */ |
| u32 timclk_ctrl1; /* Motor and Timer Clock Control */ |
| u32 spi_ctrl; /* SPI Control Register */ |
| u32 flashclk_ctrl; /* NAND Flash Clock Control Register */ |
| u32 reserved4; |
| u32 u3clk; /* UART 3 Clock Control Register */ |
| u32 u4clk; /* UART 4 Clock Control Register */ |
| u32 u5clk; /* UART 5 Clock Control Register */ |
| u32 u6clk; /* UART 6 Clock Control Register */ |
| u32 irdaclk; /* IrDA Clock Control Register */ |
| u32 uartclk_ctrl; /* UART Clock Control Register */ |
| u32 dmaclk_ctrl; /* DMA Clock Control Register */ |
| u32 autoclk_ctrl; /* Autoclock Control Register */ |
| }; |
| |
| /* HCLK Divider Control Register bits */ |
| #define CLK_HCLK_DDRAM_HALF (0x2 << 7) |
| #define CLK_HCLK_DDRAM_NOMINAL (0x1 << 7) |
| #define CLK_HCLK_DDRAM_STOPPED (0x0 << 7) |
| #define CLK_HCLK_PERIPH_DIV_MASK (0x1F << 2) |
| #define CLK_HCLK_PERIPH_DIV(n) ((((n) - 1) & 0x1F) << 2) |
| #define CLK_HCLK_ARM_PLL_DIV_MASK (0x3 << 0) |
| #define CLK_HCLK_ARM_PLL_DIV_4 (0x2 << 0) |
| #define CLK_HCLK_ARM_PLL_DIV_2 (0x1 << 0) |
| #define CLK_HCLK_ARM_PLL_DIV_1 (0x0 << 0) |
| |
| /* Power Control Register bits */ |
| #define CLK_PWR_HCLK_RUN_PERIPH (1 << 10) |
| #define CLK_PWR_EMC_SREFREQ (1 << 9) |
| #define CLK_PWR_EMC_SREFREQ_UPDATE (1 << 8) |
| #define CLK_PWR_SDRAM_SREFREQ (1 << 7) |
| #define CLK_PWR_HIGHCORE_LEVEL (1 << 5) |
| #define CLK_PWR_SYSCLKEN_LEVEL (1 << 4) |
| #define CLK_PWR_SYSCLKEN_CTRL (1 << 3) |
| #define CLK_PWR_NORMAL_RUN (1 << 2) |
| #define CLK_PWR_HIGHCORE_CTRL (1 << 1) |
| #define CLK_PWR_STOP_MODE (1 << 0) |
| |
| /* SYSCLK Control Register bits */ |
| #define CLK_SYSCLK_PLL397 (1 << 1) |
| #define CLK_SYSCLK_MUX (1 << 0) |
| |
| /* HCLK PLL Control Register bits */ |
| #define CLK_HCLK_PLL_OPERATING (1 << 16) |
| #define CLK_HCLK_PLL_BYPASS (1 << 15) |
| #define CLK_HCLK_PLL_DIRECT (1 << 14) |
| #define CLK_HCLK_PLL_FEEDBACK (1 << 13) |
| #define CLK_HCLK_PLL_POSTDIV_MASK (0x3 << 11) |
| #define CLK_HCLK_PLL_POSTDIV_16 (0x3 << 11) |
| #define CLK_HCLK_PLL_POSTDIV_8 (0x2 << 11) |
| #define CLK_HCLK_PLL_POSTDIV_4 (0x1 << 11) |
| #define CLK_HCLK_PLL_POSTDIV_2 (0x0 << 11) |
| #define CLK_HCLK_PLL_PREDIV_MASK (0x3 << 9) |
| #define CLK_HCLK_PLL_PREDIV_4 (0x3 << 9) |
| #define CLK_HCLK_PLL_PREDIV_3 (0x2 << 9) |
| #define CLK_HCLK_PLL_PREDIV_2 (0x1 << 9) |
| #define CLK_HCLK_PLL_PREDIV_1 (0x0 << 9) |
| #define CLK_HCLK_PLL_FEEDBACK_DIV_MASK (0xFF << 1) |
| #define CLK_HCLK_PLL_FEEDBACK_DIV(n) ((((n) - 1) & 0xFF) << 1) |
| #define CLK_HCLK_PLL_LOCKED (1 << 0) |
| |
| /* Ethernet MAC Clock Control Register bits */ |
| #define CLK_MAC_RMII (0x3 << 3) |
| #define CLK_MAC_MII (0x1 << 3) |
| #define CLK_MAC_MASTER (1 << 2) |
| #define CLK_MAC_SLAVE (1 << 1) |
| #define CLK_MAC_REG (1 << 0) |
| |
| /* Timer Clock Control1 Register bits */ |
| #define CLK_TIMCLK_MOTOR (1 << 6) |
| #define CLK_TIMCLK_TIMER3 (1 << 5) |
| #define CLK_TIMCLK_TIMER2 (1 << 4) |
| #define CLK_TIMCLK_TIMER1 (1 << 3) |
| #define CLK_TIMCLK_TIMER0 (1 << 2) |
| #define CLK_TIMCLK_TIMER5 (1 << 1) |
| #define CLK_TIMCLK_TIMER4 (1 << 0) |
| |
| /* Timer Clock Control Register bits */ |
| #define CLK_TIMCLK_HSTIMER (1 << 1) |
| #define CLK_TIMCLK_WATCHDOG (1 << 0) |
| |
| /* UART Clock Control Register bits */ |
| #define CLK_UART(n) (1 << ((n) - 3)) |
| |
| /* UARTn Clock Select Registers bits */ |
| #define CLK_UART_HCLK (1 << 16) |
| #define CLK_UART_X_DIV(n) (((n) & 0xFF) << 8) |
| #define CLK_UART_Y_DIV(n) (((n) & 0xFF) << 0) |
| |
| /* DMA Clock Control Register bits */ |
| #define CLK_DMA_ENABLE (1 << 0) |
| |
| unsigned int get_sys_clk_rate(void); |
| unsigned int get_hclk_pll_rate(void); |
| unsigned int get_hclk_clk_div(void); |
| unsigned int get_hclk_clk_rate(void); |
| unsigned int get_periph_clk_div(void); |
| unsigned int get_periph_clk_rate(void); |
| |
| #endif /* _LPC32XX_CLK_H */ |