text: /*
   * SPDX-License-Identifier:    Apache-2.0
   *
   * Copyright 2018 Canaan Inc.
   * Copyright (c) 2019 Western Digital Corporation or its affiliates.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  #ifndef _K210_SYSCTL_H_
  #define _K210_SYSCTL_H_
  
  #include <sbi/sbi_types.h>
  #include "platform.h"
  
  /**
   * System controller registers
   *
   * | Offset    | Name           | Description                         |
   * |-----------|----------------|-------------------------------------|
   * | 0x00      | git_id         | Git short commit id                 |
   * | 0x04      | clk_freq       | System clock base frequency         |
   * | 0x08      | pll0           | PLL0 controller                     |
   * | 0x0c      | pll1           | PLL1 controller                     |
   * | 0x10      | pll2           | PLL2 controller                     |
   * | 0x14      | resv5          | Reserved                            |
   * | 0x18      | pll_lock       | PLL lock tester                     |
   * | 0x1c      | rom_error      | AXI ROM detector                    |
   * | 0x20      | clk_sel0       | Clock select controller0            |
   * | 0x24      | clk_sel1       | Clock select controller1            |
   * | 0x28      | clk_en_cent    | Central clock enable                |
   * | 0x2c      | clk_en_peri    | Peripheral clock enable             |
   * | 0x30      | soft_reset     | Soft reset ctrl                     |
   * | 0x34      | peri_reset     | Peripheral reset controller         |
   * | 0x38      | clk_th0        | Clock threshold controller 0        |
   * | 0x3c      | clk_th1        | Clock threshold controller 1        |
   * | 0x40      | clk_th2        | Clock threshold controller 2        |
   * | 0x44      | clk_th3        | Clock threshold controller 3        |
   * | 0x48      | clk_th4        | Clock threshold controller 4        |
   * | 0x4c      | clk_th5        | Clock threshold controller 5        |
   * | 0x50      | clk_th6        | Clock threshold controller 6        |
   * | 0x54      | misc           | Miscellaneous controller            |
   * | 0x58      | peri           | Peripheral controller               |
   * | 0x5c      | spi_sleep      | SPI sleep controller                |
   * | 0x60      | reset_status   | Reset source status                 |
   * | 0x64      | dma_sel0       | DMA handshake selector              |
   * | 0x68      | dma_sel1       | DMA handshake selector              |
   * | 0x6c      | power_sel      | IO Power Mode Select controller     |
   * | 0x70      | resv28         | Reserved                            |
   * | 0x74      | resv29         | Reserved                            |
   * | 0x78      | resv30         | Reserved                            |
   * | 0x7c      | resv31         | Reserved                            |
   */
  
  typedef enum _sysctl_pll_t {
  	SYSCTL_PLL0,
  	SYSCTL_PLL1,
  	SYSCTL_PLL2,
  	SYSCTL_PLL_MAX
  } sysctl_pll_t;
  
  typedef enum _sysctl_clock_source_t {
  	SYSCTL_SOURCE_IN0,
  	SYSCTL_SOURCE_PLL0,
  	SYSCTL_SOURCE_PLL1,
  	SYSCTL_SOURCE_PLL2,
  	SYSCTL_SOURCE_ACLK,
  	SYSCTL_SOURCE_MAX
  } sysctl_clock_source_t;
  
  typedef enum _sysctl_dma_channel_t {
  	SYSCTL_DMA_CHANNEL_0,
  	SYSCTL_DMA_CHANNEL_1,
  	SYSCTL_DMA_CHANNEL_2,
  	SYSCTL_DMA_CHANNEL_3,
  	SYSCTL_DMA_CHANNEL_4,
  	SYSCTL_DMA_CHANNEL_5,
  	SYSCTL_DMA_CHANNEL_MAX
  } sysctl_dma_channel_t;
  
  typedef enum _sysctl_dma_select_t {
  	SYSCTL_DMA_SELECT_SSI0_RX_REQ,
  	SYSCTL_DMA_SELECT_SSI0_TX_REQ,
  	SYSCTL_DMA_SELECT_SSI1_RX_REQ,
  	SYSCTL_DMA_SELECT_SSI1_TX_REQ,
  	SYSCTL_DMA_SELECT_SSI2_RX_REQ,
  	SYSCTL_DMA_SELECT_SSI2_TX_REQ,
  	SYSCTL_DMA_SELECT_SSI3_RX_REQ,
  	SYSCTL_DMA_SELECT_SSI3_TX_REQ,
  	SYSCTL_DMA_SELECT_I2C0_RX_REQ,
  	SYSCTL_DMA_SELECT_I2C0_TX_REQ,
  	SYSCTL_DMA_SELECT_I2C1_RX_REQ,
  	SYSCTL_DMA_SELECT_I2C1_TX_REQ,
  	SYSCTL_DMA_SELECT_I2C2_RX_REQ,
  	SYSCTL_DMA_SELECT_I2C2_TX_REQ,
  	SYSCTL_DMA_SELECT_UART1_RX_REQ,
  	SYSCTL_DMA_SELECT_UART1_TX_REQ,
  	SYSCTL_DMA_SELECT_UART2_RX_REQ,
  	SYSCTL_DMA_SELECT_UART2_TX_REQ,
  	SYSCTL_DMA_SELECT_UART3_RX_REQ,
  	SYSCTL_DMA_SELECT_UART3_TX_REQ,
  	SYSCTL_DMA_SELECT_AES_REQ,
  	SYSCTL_DMA_SELECT_SHA_RX_REQ,
  	SYSCTL_DMA_SELECT_AI_RX_REQ,
  	SYSCTL_DMA_SELECT_FFT_RX_REQ,
  	SYSCTL_DMA_SELECT_FFT_TX_REQ,
  	SYSCTL_DMA_SELECT_I2S0_TX_REQ,
  	SYSCTL_DMA_SELECT_I2S0_RX_REQ,
  	SYSCTL_DMA_SELECT_I2S1_TX_REQ,
  	SYSCTL_DMA_SELECT_I2S1_RX_REQ,
  	SYSCTL_DMA_SELECT_I2S2_TX_REQ,
  	SYSCTL_DMA_SELECT_I2S2_RX_REQ,
  	SYSCTL_DMA_SELECT_I2S0_BF_DIR_REQ,
  	SYSCTL_DMA_SELECT_I2S0_BF_VOICE_REQ,
  	SYSCTL_DMA_SELECT_MAX
  } sysctl_dma_select_t;
  
  /**
   * System controller clock id
   */
  typedef enum _sysctl_clock_t {
  	SYSCTL_CLOCK_PLL0,
  	SYSCTL_CLOCK_PLL1,
  	SYSCTL_CLOCK_PLL2,
  	SYSCTL_CLOCK_CPU,
  	SYSCTL_CLOCK_SRAM0,
  	SYSCTL_CLOCK_SRAM1,
  	SYSCTL_CLOCK_APB0,
  	SYSCTL_CLOCK_APB1,
  	SYSCTL_CLOCK_APB2,
  	SYSCTL_CLOCK_ROM,
  	SYSCTL_CLOCK_DMA,
  	SYSCTL_CLOCK_AI,
  	SYSCTL_CLOCK_DVP,
  	SYSCTL_CLOCK_FFT,
  	SYSCTL_CLOCK_GPIO,
  	SYSCTL_CLOCK_SPI0,
  	SYSCTL_CLOCK_SPI1,
  	SYSCTL_CLOCK_SPI2,
  	SYSCTL_CLOCK_SPI3,
  	SYSCTL_CLOCK_I2S0,
  	SYSCTL_CLOCK_I2S1,
  	SYSCTL_CLOCK_I2S2,
  	SYSCTL_CLOCK_I2C0,
  	SYSCTL_CLOCK_I2C1,
  	SYSCTL_CLOCK_I2C2,
  	SYSCTL_CLOCK_UART1,
  	SYSCTL_CLOCK_UART2,
  	SYSCTL_CLOCK_UART3,
  	SYSCTL_CLOCK_AES,
  	SYSCTL_CLOCK_FPIOA,
  	SYSCTL_CLOCK_TIMER0,
  	SYSCTL_CLOCK_TIMER1,
  	SYSCTL_CLOCK_TIMER2,
  	SYSCTL_CLOCK_WDT0,
  	SYSCTL_CLOCK_WDT1,
  	SYSCTL_CLOCK_SHA,
  	SYSCTL_CLOCK_OTP,
  	SYSCTL_CLOCK_RTC,
  	SYSCTL_CLOCK_ACLK = 40,
  	SYSCTL_CLOCK_HCLK,
  	SYSCTL_CLOCK_IN0,
  	SYSCTL_CLOCK_MAX
  } sysctl_clock_t;
  
  /**
   * System controller clock select id
   */
  typedef enum _sysctl_clock_select_t {
  	SYSCTL_CLOCK_SELECT_PLL0_BYPASS,
  	SYSCTL_CLOCK_SELECT_PLL1_BYPASS,
  	SYSCTL_CLOCK_SELECT_PLL2_BYPASS,
  	SYSCTL_CLOCK_SELECT_PLL2,
  	SYSCTL_CLOCK_SELECT_ACLK,
  	SYSCTL_CLOCK_SELECT_SPI3,
  	SYSCTL_CLOCK_SELECT_TIMER0,
  	SYSCTL_CLOCK_SELECT_TIMER1,
  	SYSCTL_CLOCK_SELECT_TIMER2,
  	SYSCTL_CLOCK_SELECT_SPI3_SAMPLE,
  	SYSCTL_CLOCK_SELECT_MAX = 11
  } sysctl_clock_select_t;
  
  /**
   * System controller clock threshold id
   */
  typedef enum _sysctl_threshold_t {
  	SYSCTL_THRESHOLD_ACLK,
  	SYSCTL_THRESHOLD_APB0,
  	SYSCTL_THRESHOLD_APB1,
  	SYSCTL_THRESHOLD_APB2,
  	SYSCTL_THRESHOLD_SRAM0,
  	SYSCTL_THRESHOLD_SRAM1,
  	SYSCTL_THRESHOLD_AI,
  	SYSCTL_THRESHOLD_DVP,
  	SYSCTL_THRESHOLD_ROM,
  	SYSCTL_THRESHOLD_SPI0,
  	SYSCTL_THRESHOLD_SPI1,
  	SYSCTL_THRESHOLD_SPI2,
  	SYSCTL_THRESHOLD_SPI3,
  	SYSCTL_THRESHOLD_TIMER0,
  	SYSCTL_THRESHOLD_TIMER1,
  	SYSCTL_THRESHOLD_TIMER2,
  	SYSCTL_THRESHOLD_I2S0,
  	SYSCTL_THRESHOLD_I2S1,
  	SYSCTL_THRESHOLD_I2S2,
  	SYSCTL_THRESHOLD_I2S0_M,
  	SYSCTL_THRESHOLD_I2S1_M,
  	SYSCTL_THRESHOLD_I2S2_M,
  	SYSCTL_THRESHOLD_I2C0,
  	SYSCTL_THRESHOLD_I2C1,
  	SYSCTL_THRESHOLD_I2C2,
  	SYSCTL_THRESHOLD_WDT0,
  	SYSCTL_THRESHOLD_WDT1,
  	SYSCTL_THRESHOLD_MAX = 28
  } sysctl_threshold_t;
  
  /**
   * System controller reset control id
   */
  typedef enum _sysctl_reset_t {
  	SYSCTL_RESET_SOC,
  	SYSCTL_RESET_ROM,
  	SYSCTL_RESET_DMA,
  	SYSCTL_RESET_AI,
  	SYSCTL_RESET_DVP,
  	SYSCTL_RESET_FFT,
  	SYSCTL_RESET_GPIO,
  	SYSCTL_RESET_SPI0,
  	SYSCTL_RESET_SPI1,
  	SYSCTL_RESET_SPI2,
  	SYSCTL_RESET_SPI3,
  	SYSCTL_RESET_I2S0,
  	SYSCTL_RESET_I2S1,
  	SYSCTL_RESET_I2S2,
  	SYSCTL_RESET_I2C0,
  	SYSCTL_RESET_I2C1,
  	SYSCTL_RESET_I2C2,
  	SYSCTL_RESET_UART1,
  	SYSCTL_RESET_UART2,
  	SYSCTL_RESET_UART3,
  	SYSCTL_RESET_AES,
  	SYSCTL_RESET_FPIOA,
  	SYSCTL_RESET_TIMER0,
  	SYSCTL_RESET_TIMER1,
  	SYSCTL_RESET_TIMER2,
  	SYSCTL_RESET_WDT0,
  	SYSCTL_RESET_WDT1,
  	SYSCTL_RESET_SHA,
  	SYSCTL_RESET_RTC,
  	SYSCTL_RESET_MAX = 31
  } sysctl_reset_t;
  
  typedef enum _sysctl_power_bank {
  	SYSCTL_POWER_BANK0,
  	SYSCTL_POWER_BANK1,
  	SYSCTL_POWER_BANK2,
  	SYSCTL_POWER_BANK3,
  	SYSCTL_POWER_BANK4,
  	SYSCTL_POWER_BANK5,
  	SYSCTL_POWER_BANK6,
  	SYSCTL_POWER_BANK7,
  	SYSCTL_POWER_BANK_MAX,
  } sysctl_power_bank_t;
  
  /**
   * System controller reset control id
   */
  typedef enum _sysctl_io_power_mode {
  	SYSCTL_POWER_V33,
  	SYSCTL_POWER_V18
  } sysctl_io_power_mode_t;
  
  /**
   * Git short commit id
   * No. 0 Register (0x00)
   */
  typedef struct _sysctl_git_id {
  	u32 git_id : 32;
  } __attribute__((packed, aligned(4))) sysctl_git_id_t;
  
  /**
   * System clock base frequency
   * No. 1 Register (0x04)
   */
  typedef struct _sysctl_clk_freq {
  	u32 clk_freq : 32;
  } __attribute__((packed, aligned(4))) sysctl_clk_freq_t;
  
  /**
   * PLL0 controller
   * No. 2 Register (0x08)
   */
  typedef struct _sysctl_pll0 {
  	u32 clkr0 : 4;
  	u32 clkf0 : 6;
  	u32 clkod0 : 4;
  	u32 bwadj0 : 6;
  	u32 pll_reset0 : 1;
  	u32 pll_pwrd0 : 1;
  	u32 pll_intfb0 : 1;
  	u32 pll_bypass0 : 1;
  	u32 pll_test0 : 1;
  	u32 pll_out_en0 : 1;
  	u32 pll_test_en : 1;
  	u32 reserved : 5;
  } __attribute__((packed, aligned(4))) sysctl_pll0_t;
  
  /**
   * PLL1 controller
   * No. 3 Register (0x0c)
   */
  typedef struct _sysctl_pll1 {
  	u32 clkr1 : 4;
  	u32 clkf1 : 6;
  	u32 clkod1 : 4;
  	u32 bwadj1 : 6;
  	u32 pll_reset1 : 1;
  	u32 pll_pwrd1 : 1;
  	u32 pll_intfb1 : 1;
  	u32 pll_bypass1 : 1;
  	u32 pll_test1 : 1;
  	u32 pll_out_en1 : 1;
  	u32 reserved : 6;
  } __attribute__((packed, aligned(4))) sysctl_pll1_t;
  
  /**
   * PLL2 controller
   * No. 4 Register (0x10)
   */
  typedef struct _sysctl_pll2 {
  	u32 clkr2 : 4;
  	u32 clkf2 : 6;
  	u32 clkod2 : 4;
  	u32 bwadj2 : 6;
  	u32 pll_reset2 : 1;
  	u32 pll_pwrd2 : 1;
  	u32 pll_intfb2 : 1;
  	u32 pll_bypass2 : 1;
  	u32 pll_test2 : 1;
  	u32 pll_out_en2 : 1;
  	u32 pll_ckin_sel2 : 2;
  	u32 reserved : 4;
  } __attribute__((packed, aligned(4))) sysctl_pll2_t;
  
  /**
   * PLL lock tester
   * No. 6 Register (0x18)
   */
  typedef struct _sysctl_pll_lock {
  	u32 pll_lock0 : 2;
  	u32 pll_slip_clear0 : 1;
  	u32 test_clk_out0 : 1;
  	u32 reserved0 : 4;
  	u32 pll_lock1 : 2;
  	u32 pll_slip_clear1 : 1;
  	u32 test_clk_out1 : 1;
  	u32 reserved1 : 4;
  	u32 pll_lock2 : 2;
  	u32 pll_slip_clear2 : 1;
  	u32 test_clk_out2 : 1;
  	u32 reserved2 : 12;
  } __attribute__((packed, aligned(4))) sysctl_pll_lock_t;
  
  /**
   * AXI ROM detector
   * No. 7 Register (0x1c)
   */
  typedef struct _sysctl_rom_error {
  	u32 rom_mul_error : 1;
  	u32 rom_one_error : 1;
  	u32 reserved : 30;
  } __attribute__((packed, aligned(4))) sysctl_rom_error_t;
  
  /**
   * Clock select controller0
   * No. 8 Register (0x20)
   */
  typedef struct _sysctl_clk_sel0 {
  	u32 aclk_sel : 1;
  	u32 aclk_divider_sel : 2;
  	u32 apb0_clk_sel : 3;
  	u32 apb1_clk_sel : 3;
  	u32 apb2_clk_sel : 3;
  	u32 spi3_clk_sel : 1;
  	u32 timer0_clk_sel : 1;
  	u32 timer1_clk_sel : 1;
  	u32 timer2_clk_sel : 1;
  	u32 reserved : 16;
  } __attribute__((packed, aligned(4))) sysctl_clk_sel0_t;
  
  /**
   * Clock select controller1
   * No. 9 Register (0x24)
   */
  typedef struct _sysctl_clk_sel1 {
  	u32 spi3_sample_clk_sel : 1;
  	u32 reserved0 : 30;
  	u32 reserved1 : 1;
  } __attribute__((packed, aligned(4))) sysctl_clk_sel1_t;
  
  /**
   * Central clock enable
   * No. 10 Register (0x28)
   */
  typedef struct _sysctl_clk_en_cent {
  	u32 cpu_clk_en : 1;
  	u32 sram0_clk_en : 1;
  	u32 sram1_clk_en : 1;
  	u32 apb0_clk_en : 1;
  	u32 apb1_clk_en : 1;
  	u32 apb2_clk_en : 1;
  	u32 reserved : 26;
  } __attribute__((packed, aligned(4))) sysctl_clk_en_cent_t;
  
  /**
   * Peripheral clock enable
   * No. 11 Register (0x2c)
   */
  typedef struct _sysctl_clk_en_peri {
  	u32 rom_clk_en : 1;
  	u32 dma_clk_en : 1;
  	u32 ai_clk_en : 1;
  	u32 dvp_clk_en : 1;
  	u32 fft_clk_en : 1;
  	u32 gpio_clk_en : 1;
  	u32 spi0_clk_en : 1;
  	u32 spi1_clk_en : 1;
  	u32 spi2_clk_en : 1;
  	u32 spi3_clk_en : 1;
  	u32 i2s0_clk_en : 1;
  	u32 i2s1_clk_en : 1;
  	u32 i2s2_clk_en : 1;
  	u32 i2c0_clk_en : 1;
  	u32 i2c1_clk_en : 1;
  	u32 i2c2_clk_en : 1;
  	u32 uart1_clk_en : 1;
  	u32 uart2_clk_en : 1;
  	u32 uart3_clk_en : 1;
  	u32 aes_clk_en : 1;
  	u32 fpioa_clk_en : 1;
  	u32 timer0_clk_en : 1;
  	u32 timer1_clk_en : 1;
  	u32 timer2_clk_en : 1;
  	u32 wdt0_clk_en : 1;
  	u32 wdt1_clk_en : 1;
  	u32 sha_clk_en : 1;
  	u32 otp_clk_en : 1;
  	u32 reserved : 1;
  	u32 rtc_clk_en : 1;
  	u32 reserved0 : 2;
  } __attribute__((packed, aligned(4))) sysctl_clk_en_peri_t;
  
  /**
   * Soft reset ctrl
   * No. 12 Register (0x30)
   */
  typedef struct _sysctl_soft_reset {
  	u32 soft_reset : 1;
  	u32 reserved : 31;
  } __attribute__((packed, aligned(4))) sysctl_soft_reset_t;
  
  /**
   * Peripheral reset controller
   * No. 13 Register (0x34)
   */
  typedef struct _sysctl_peri_reset {
  	u32 rom_reset : 1;
  	u32 dma_reset : 1;
  	u32 ai_reset : 1;
  	u32 dvp_reset : 1;
  	u32 fft_reset : 1;
  	u32 gpio_reset : 1;
  	u32 spi0_reset : 1;
  	u32 spi1_reset : 1;
  	u32 spi2_reset : 1;
  	u32 spi3_reset : 1;
  	u32 i2s0_reset : 1;
  	u32 i2s1_reset : 1;
  	u32 i2s2_reset : 1;
  	u32 i2c0_reset : 1;
  	u32 i2c1_reset : 1;
  	u32 i2c2_reset : 1;
  	u32 uart1_reset : 1;
  	u32 uart2_reset : 1;
  	u32 uart3_reset : 1;
  	u32 aes_reset : 1;
  	u32 fpioa_reset : 1;
  	u32 timer0_reset : 1;
  	u32 timer1_reset : 1;
  	u32 timer2_reset : 1;
  	u32 wdt0_reset : 1;
  	u32 wdt1_reset : 1;
  	u32 sha_reset : 1;
  	u32 reserved : 2;
  	u32 rtc_reset : 1;
  	u32 reserved0 : 2;
  } __attribute__((packed, aligned(4))) sysctl_peri_reset_t;
  
  /**
   * Clock threshold controller 0
   * No. 14 Register (0x38)
   */
  typedef struct _sysctl_clk_th0 {
  	u32 sram0_gclk_threshold : 4;
  	u32 sram1_gclk_threshold : 4;
  	u32 ai_gclk_threshold : 4;
  	u32 dvp_gclk_threshold : 4;
  	u32 rom_gclk_threshold : 4;
  	u32 reserved : 12;
  } __attribute__((packed, aligned(4))) sysctl_clk_th0_t;
  
  /**
   * Clock threshold controller 1
   * No. 15 Register (0x3c)
   */
  typedef struct _sysctl_clk_th1 {
  	u32 spi0_clk_threshold : 8;
  	u32 spi1_clk_threshold : 8;
  	u32 spi2_clk_threshold : 8;
  	u32 spi3_clk_threshold : 8;
  } __attribute__((packed, aligned(4))) sysctl_clk_th1_t;
  
  /**
   * Clock threshold controller 2
   * No. 16 Register (0x40)
   */
  typedef struct _sysctl_clk_th2 {
  	u32 timer0_clk_threshold : 8;
  	u32 timer1_clk_threshold : 8;
  	u32 timer2_clk_threshold : 8;
  	u32 reserved : 8;
  } __attribute__((packed, aligned(4))) sysctl_clk_th2_t;
  
  /**
   * Clock threshold controller 3
   * No. 17 Register (0x44)
   */
  typedef struct _sysctl_clk_th3 {
  	u32 i2s0_clk_threshold : 16;
  	u32 i2s1_clk_threshold : 16;
  } __attribute__((packed, aligned(4))) sysctl_clk_th3_t;
  
  /**
   * Clock threshold controller 4
   * No. 18 Register (0x48)
   */
  typedef struct _sysctl_clk_th4 {
  	u32 i2s2_clk_threshold : 16;
  	u32 i2s0_mclk_threshold : 8;
  	u32 i2s1_mclk_threshold : 8;
  } __attribute__((packed, aligned(4))) sysctl_clk_th4_t;
  
  /**
   * Clock threshold controller 5
   * No. 19 Register (0x4c)
   */
  typedef struct _sysctl_clk_th5 {
  	u32 i2s2_mclk_threshold : 8;
  	u32 i2c0_clk_threshold : 8;
  	u32 i2c1_clk_threshold : 8;
  	u32 i2c2_clk_threshold : 8;
  } __attribute__((packed, aligned(4))) sysctl_clk_th5_t;
  
  /**
   * Clock threshold controller 6
   * No. 20 Register (0x50)
   */
  typedef struct _sysctl_clk_th6 {
  	u32 wdt0_clk_threshold : 8;
  	u32 wdt1_clk_threshold : 8;
  	u32 reserved0 : 8;
  	u32 reserved1 : 8;
  } __attribute__((packed, aligned(4))) sysctl_clk_th6_t;
  
  /**
   * Miscellaneous controller
   * No. 21 Register (0x54)
   */
  typedef struct _sysctl_misc {
  	u32 debug_sel : 6;
  	u32 reserved0 : 4;
  	u32 spi_dvp_data_enable: 1;
  	u32 reserved1 : 21;
  } __attribute__((packed, aligned(4))) sysctl_misc_t;
  
  /**
   * Peripheral controller
   * No. 22 Register (0x58)
   */
  typedef struct _sysctl_peri {
  	u32 timer0_pause : 1;
  	u32 timer1_pause : 1;
  	u32 timer2_pause : 1;
  	u32 timer3_pause : 1;
  	u32 timer4_pause : 1;
  	u32 timer5_pause : 1;
  	u32 timer6_pause : 1;
  	u32 timer7_pause : 1;
  	u32 timer8_pause : 1;
  	u32 timer9_pause : 1;
  	u32 timer10_pause : 1;
  	u32 timer11_pause : 1;
  	u32 spi0_xip_en : 1;
  	u32 spi1_xip_en : 1;
  	u32 spi2_xip_en : 1;
  	u32 spi3_xip_en : 1;
  	u32 spi0_clk_bypass : 1;
  	u32 spi1_clk_bypass : 1;
  	u32 spi2_clk_bypass : 1;
  	u32 i2s0_clk_bypass : 1;
  	u32 i2s1_clk_bypass : 1;
  	u32 i2s2_clk_bypass : 1;
  	u32 jtag_clk_bypass : 1;
  	u32 dvp_clk_bypass : 1;
  	u32 debug_clk_bypass : 1;
  	u32 reserved0 : 1;
  	u32 reserved1 : 6;
  } __attribute__((packed, aligned(4))) sysctl_peri_t;
  
  /**
   * SPI sleep controller
   * No. 23 Register (0x5c)
   */
  typedef struct _sysctl_spi_sleep {
  	u32 ssi0_sleep : 1;
  	u32 ssi1_sleep : 1;
  	u32 ssi2_sleep : 1;
  	u32 ssi3_sleep : 1;
  	u32 reserved : 28;
  } __attribute__((packed, aligned(4))) sysctl_spi_sleep_t;
  
  /**
   * Reset source status
   * No. 24 Register (0x60)
   */
  typedef struct _sysctl_reset_status {
  	u32 reset_sts_clr : 1;
  	u32 pin_reset_sts : 1;
  	u32 wdt0_reset_sts : 1;
  	u32 wdt1_reset_sts : 1;
  	u32 soft_reset_sts : 1;
  	u32 reserved : 27;
  } __attribute__((packed, aligned(4))) sysctl_reset_status_t;
  
  /**
   * DMA handshake selector
   * No. 25 Register (0x64)
   */
  typedef struct _sysctl_dma_sel0 {
  	u32 dma_sel0 : 6;
  	u32 dma_sel1 : 6;
  	u32 dma_sel2 : 6;
  	u32 dma_sel3 : 6;
  	u32 dma_sel4 : 6;
  	u32 reserved : 2;
  } __attribute__((packed, aligned(4))) sysctl_dma_sel0_t;
  
  /**
   * DMA handshake selector
   * No. 26 Register (0x68)
   */
  typedef struct _sysctl_dma_sel1 {
  	u32 dma_sel5 : 6;
  	u32 reserved : 26;
  } __attribute__((packed, aligned(4))) sysctl_dma_sel1_t;
  
  /**
   * IO Power Mode Select controller
   * No. 27 Register (0x6c)
   */
  typedef struct _sysctl_power_sel {
  	u32 power_mode_sel0 : 1;
  	u32 power_mode_sel1 : 1;
  	u32 power_mode_sel2 : 1;
  	u32 power_mode_sel3 : 1;
  	u32 power_mode_sel4 : 1;
  	u32 power_mode_sel5 : 1;
  	u32 power_mode_sel6 : 1;
  	u32 power_mode_sel7 : 1;
  	u32 reserved : 24;
  } __attribute__((packed, aligned(4))) sysctl_power_sel_t;
  
  /**
   * System controller object
   *
   * The System controller is a peripheral device mapped in the
   * internal memory map, discoverable in the Configuration String.
   * It is responsible for low-level configuration of all system
   * related peripheral device. It contain PLL controller, clock
   * controller, reset controller, DMA handshake controller, SPI
   * controller, timer controller, WDT controller and sleep
   * controller.
   */
  typedef struct _sysctl {
  	/* No. 0 (0x00): Git short commit id */
  	sysctl_git_id_t git_id;
  	/* No. 1 (0x04): System clock base frequency */
  	sysctl_clk_freq_t clk_freq;
  	/* No. 2 (0x08): PLL0 controller */
  	sysctl_pll0_t pll0;
  	/* No. 3 (0x0c): PLL1 controller */
  	sysctl_pll1_t pll1;
  	/* No. 4 (0x10): PLL2 controller */
  	sysctl_pll2_t pll2;
  	/* No. 5 (0x14): Reserved */
  	u32 resv5;
  	/* No. 6 (0x18): PLL lock tester */
  	sysctl_pll_lock_t pll_lock;
  	/* No. 7 (0x1c): AXI ROM detector */
  	sysctl_rom_error_t rom_error;
  	/* No. 8 (0x20): Clock select controller0 */
  	sysctl_clk_sel0_t clk_sel0;
  	/* No. 9 (0x24): Clock select controller1 */
  	sysctl_clk_sel1_t clk_sel1;
  	/* No. 10 (0x28): Central clock enable */
  	sysctl_clk_en_cent_t clk_en_cent;
  	/* No. 11 (0x2c): Peripheral clock enable */
  	sysctl_clk_en_peri_t clk_en_peri;
  	/* No. 12 (0x30): Soft reset ctrl */
  	sysctl_soft_reset_t soft_reset;
  	/* No. 13 (0x34): Peripheral reset controller */
  	sysctl_peri_reset_t peri_reset;
  	/* No. 14 (0x38): Clock threshold controller 0 */
  	sysctl_clk_th0_t clk_th0;
  	/* No. 15 (0x3c): Clock threshold controller 1 */
  	sysctl_clk_th1_t clk_th1;
  	/* No. 16 (0x40): Clock threshold controller 2 */
  	sysctl_clk_th2_t clk_th2;
  	/* No. 17 (0x44): Clock threshold controller 3 */
  	sysctl_clk_th3_t clk_th3;
  	/* No. 18 (0x48): Clock threshold controller 4 */
  	sysctl_clk_th4_t clk_th4;
  	/* No. 19 (0x4c): Clock threshold controller 5 */
  	sysctl_clk_th5_t clk_th5;
  	/* No. 20 (0x50): Clock threshold controller 6 */
  	sysctl_clk_th6_t clk_th6;
  	/* No. 21 (0x54): Miscellaneous controller */
  	sysctl_misc_t misc;
  	/* No. 22 (0x58): Peripheral controller */
  	sysctl_peri_t peri;
  	/* No. 23 (0x5c): SPI sleep controller */
  	sysctl_spi_sleep_t spi_sleep;
  	/* No. 24 (0x60): Reset source status */
  	sysctl_reset_status_t reset_status;
  	/* No. 25 (0x64): DMA handshake selector */
  	sysctl_dma_sel0_t dma_sel0;
  	/* No. 26 (0x68): DMA handshake selector */
  	sysctl_dma_sel1_t dma_sel1;
  	/* No. 27 (0x6c): IO Power Mode Select controller */
  	sysctl_power_sel_t power_sel;
  	/* No. 28 (0x70): Reserved */
  	u32 resv28;
  	/* No. 29 (0x74): Reserved */
  	u32 resv29;
  	/* No. 30 (0x78): Reserved */
  	u32 resv30;
  	/* No. 31 (0x7c): Reserved */
  	u32 resv31;
  } __attribute__((packed, aligned(4))) sysctl_t;
  
  /**
   * Abstruct PLL struct
   */
  typedef struct _sysctl_general_pll {
  	u32 clkr : 4;
  	u32 clkf : 6;
  	u32 clkod : 4;
  	u32 bwadj : 6;
  	u32 pll_reset : 1;
  	u32 pll_pwrd : 1;
  	u32 pll_intfb : 1;
  	u32 pll_bypass : 1;
  	u32 pll_test : 1;
  	u32 pll_out_en : 1;
  	u32 pll_ckin_sel : 2;
  	u32 reserved : 4;
  } __attribute__((packed, aligned(4))) sysctl_general_pll_t;
  
  /**
   * Get frequency of CPU
   * @return      The frequency of the CPU
   */
  u32 sysctl_get_cpu_freq(void);
  
  #endif /* _K210_SYSCTL_H_ */
  