2 * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <asm/types.h>
12 #define OSC_CLK_FREQUENCY 13000000
13 #define RTC_CLK_FREQUENCY 32768
15 /* Clocking and Power Control Registers */
18 u32 boot_map; /* Boot Map Control Register */
19 u32 p0_intr_er; /* Port 0/1 Start and Interrupt Enable */
20 u32 usbdiv_ctrl; /* USB Clock Pre-Divide Register */
21 /* Internal Start Signal Sources Registers */
22 u32 start_er_int; /* Start Enable Register */
23 u32 start_rsr_int; /* Start Raw Status Register */
24 u32 start_sr_int; /* Start Status Register */
25 u32 start_apr_int; /* Start Activation Polarity Register */
26 /* Device Pin Start Signal Sources Registers */
27 u32 start_er_pin; /* Start Enable Register */
28 u32 start_rsr_pin; /* Start Raw Status Register */
29 u32 start_sr_pin; /* Start Status Register */
30 u32 start_apr_pin; /* Start Activation Polarity Register */
31 /* Clock Control Registers */
32 u32 hclkdiv_ctrl; /* HCLK Divider Control Register */
33 u32 pwr_ctrl; /* Power Control Register */
34 u32 pll397_ctrl; /* PLL397 Control Register */
35 u32 osc_ctrl; /* Main Oscillator Control Register */
36 u32 sysclk_ctrl; /* SYSCLK Control Register */
37 u32 lcdclk_ctrl; /* LCD Clock Control Register */
38 u32 hclkpll_ctrl; /* HCLK PLL Control Register */
40 u32 adclk_ctrl1; /* ADC Clock Control1 Register */
41 u32 usb_ctrl; /* USB Control Register */
42 u32 sdramclk_ctrl; /* SDRAM Clock Control Register */
43 u32 ddr_lap_nom; /* DDR Calibration Nominal Value */
44 u32 ddr_lap_count; /* DDR Calibration Measured Value */
45 u32 ddr_cal_delay; /* DDR Calibration Delay Value */
46 u32 ssp_ctrl; /* SSP Control Register */
47 u32 i2s_ctrl; /* I2S Clock Control Register */
48 u32 ms_ctrl; /* Memory Card Control Register */
50 u32 macclk_ctrl; /* Ethernet MAC Clock Control Register */
52 u32 test_clk; /* Test Clock Selection Register */
53 u32 sw_int; /* Software Interrupt Register */
54 u32 i2cclk_ctrl; /* I2C Clock Control Register */
55 u32 keyclk_ctrl; /* Keyboard Scan Clock Control Register */
56 u32 adclk_ctrl; /* ADC Clock Control Register */
57 u32 pwmclk_ctrl; /* PWM Clock Control Register */
58 u32 timclk_ctrl; /* Watchdog and Highspeed Timer Control */
59 u32 timclk_ctrl1; /* Motor and Timer Clock Control */
60 u32 spi_ctrl; /* SPI Control Register */
61 u32 flashclk_ctrl; /* NAND Flash Clock Control Register */
63 u32 u3clk; /* UART 3 Clock Control Register */
64 u32 u4clk; /* UART 4 Clock Control Register */
65 u32 u5clk; /* UART 5 Clock Control Register */
66 u32 u6clk; /* UART 6 Clock Control Register */
67 u32 irdaclk; /* IrDA Clock Control Register */
68 u32 uartclk_ctrl; /* UART Clock Control Register */
69 u32 dmaclk_ctrl; /* DMA Clock Control Register */
70 u32 autoclk_ctrl; /* Autoclock Control Register */
73 /* HCLK Divider Control Register bits */
74 #define CLK_HCLK_DDRAM_MASK (0x3 << 7)
75 #define CLK_HCLK_DDRAM_HALF (0x2 << 7)
76 #define CLK_HCLK_DDRAM_NOMINAL (0x1 << 7)
77 #define CLK_HCLK_DDRAM_STOPPED (0x0 << 7)
78 #define CLK_HCLK_PERIPH_DIV_MASK (0x1F << 2)
79 #define CLK_HCLK_PERIPH_DIV(n) ((((n) - 1) & 0x1F) << 2)
80 #define CLK_HCLK_ARM_PLL_DIV_MASK (0x3 << 0)
81 #define CLK_HCLK_ARM_PLL_DIV_4 (0x2 << 0)
82 #define CLK_HCLK_ARM_PLL_DIV_2 (0x1 << 0)
83 #define CLK_HCLK_ARM_PLL_DIV_1 (0x0 << 0)
85 /* Power Control Register bits */
86 #define CLK_PWR_HCLK_RUN_PERIPH (1 << 10)
87 #define CLK_PWR_EMC_SREFREQ (1 << 9)
88 #define CLK_PWR_EMC_SREFREQ_UPDATE (1 << 8)
89 #define CLK_PWR_SDRAM_SREFREQ (1 << 7)
90 #define CLK_PWR_HIGHCORE_LEVEL (1 << 5)
91 #define CLK_PWR_SYSCLKEN_LEVEL (1 << 4)
92 #define CLK_PWR_SYSCLKEN_CTRL (1 << 3)
93 #define CLK_PWR_NORMAL_RUN (1 << 2)
94 #define CLK_PWR_HIGHCORE_CTRL (1 << 1)
95 #define CLK_PWR_STOP_MODE (1 << 0)
97 /* SYSCLK Control Register bits */
98 #define CLK_SYSCLK_PLL397 (1 << 1)
99 #define CLK_SYSCLK_MUX (1 << 0)
101 /* HCLK PLL Control Register bits */
102 #define CLK_HCLK_PLL_OPERATING (1 << 16)
103 #define CLK_HCLK_PLL_BYPASS (1 << 15)
104 #define CLK_HCLK_PLL_DIRECT (1 << 14)
105 #define CLK_HCLK_PLL_FEEDBACK (1 << 13)
106 #define CLK_HCLK_PLL_POSTDIV_MASK (0x3 << 11)
107 #define CLK_HCLK_PLL_POSTDIV_16 (0x3 << 11)
108 #define CLK_HCLK_PLL_POSTDIV_8 (0x2 << 11)
109 #define CLK_HCLK_PLL_POSTDIV_4 (0x1 << 11)
110 #define CLK_HCLK_PLL_POSTDIV_2 (0x0 << 11)
111 #define CLK_HCLK_PLL_PREDIV_MASK (0x3 << 9)
112 #define CLK_HCLK_PLL_PREDIV_4 (0x3 << 9)
113 #define CLK_HCLK_PLL_PREDIV_3 (0x2 << 9)
114 #define CLK_HCLK_PLL_PREDIV_2 (0x1 << 9)
115 #define CLK_HCLK_PLL_PREDIV_1 (0x0 << 9)
116 #define CLK_HCLK_PLL_FEEDBACK_DIV_MASK (0xFF << 1)
117 #define CLK_HCLK_PLL_FEEDBACK_DIV(n) ((((n) - 1) & 0xFF) << 1)
118 #define CLK_HCLK_PLL_LOCKED (1 << 0)
120 /* Ethernet MAC Clock Control Register bits */
121 #define CLK_MAC_RMII (0x3 << 3)
122 #define CLK_MAC_MII (0x1 << 3)
123 #define CLK_MAC_MASTER (1 << 2)
124 #define CLK_MAC_SLAVE (1 << 1)
125 #define CLK_MAC_REG (1 << 0)
127 /* I2C Clock Control Register bits */
128 #define CLK_I2C2_ENABLE (1 << 1)
129 #define CLK_I2C1_ENABLE (1 << 0)
131 /* Timer Clock Control1 Register bits */
132 #define CLK_TIMCLK_MOTOR (1 << 6)
133 #define CLK_TIMCLK_TIMER3 (1 << 5)
134 #define CLK_TIMCLK_TIMER2 (1 << 4)
135 #define CLK_TIMCLK_TIMER1 (1 << 3)
136 #define CLK_TIMCLK_TIMER0 (1 << 2)
137 #define CLK_TIMCLK_TIMER5 (1 << 1)
138 #define CLK_TIMCLK_TIMER4 (1 << 0)
140 /* Timer Clock Control Register bits */
141 #define CLK_TIMCLK_HSTIMER (1 << 1)
142 #define CLK_TIMCLK_WATCHDOG (1 << 0)
144 /* UART Clock Control Register bits */
145 #define CLK_UART(n) (1 << ((n) - 3))
147 /* UARTn Clock Select Registers bits */
148 #define CLK_UART_HCLK (1 << 16)
149 #define CLK_UART_X_DIV(n) (((n) & 0xFF) << 8)
150 #define CLK_UART_Y_DIV(n) (((n) & 0xFF) << 0)
152 /* DMA Clock Control Register bits */
153 #define CLK_DMA_ENABLE (1 << 0)
155 /* NAND Clock Control Register bits */
156 #define CLK_NAND_SLC (1 << 0)
157 #define CLK_NAND_MLC (1 << 1)
158 #define CLK_NAND_SLC_SELECT (1 << 2)
159 #define CLK_NAND_MLC_INT (1 << 5)
161 /* SSP Clock Control Register bits */
162 #define CLK_SSP0_ENABLE_CLOCK (1 << 0)
164 /* SDRAMCLK register bits */
165 #define CLK_SDRAM_DDR_SEL (1 << 1)
167 /* USB control register definitions */
168 #define CLK_USBCTRL_PLL_STS (1 << 0)
169 #define CLK_USBCTRL_FDBK_PLUS1(n) (((n) & 0xFF) << 1)
170 #define CLK_USBCTRL_POSTDIV_2POW(n) (((n) & 0x3) << 11)
171 #define CLK_USBCTRL_PLL_PWRUP (1 << 16)
172 #define CLK_USBCTRL_CLK_EN1 (1 << 17)
173 #define CLK_USBCTRL_CLK_EN2 (1 << 18)
174 #define CLK_USBCTRL_BUS_KEEPER (0x1 << 19)
175 #define CLK_USBCTRL_USBHSTND_EN (1 << 21)
176 #define CLK_USBCTRL_USBDVND_EN (1 << 22)
177 #define CLK_USBCTRL_HCLK_EN (1 << 24)
179 unsigned int get_sys_clk_rate(void);
180 unsigned int get_hclk_pll_rate(void);
181 unsigned int get_hclk_clk_div(void);
182 unsigned int get_hclk_clk_rate(void);
183 unsigned int get_periph_clk_div(void);
184 unsigned int get_periph_clk_rate(void);
185 unsigned int get_sdram_clk_rate(void);
187 #endif /* _LPC32XX_CLK_H */