#ifndef SYS_H__ #define SYS_H__ #include #include #include #include #define swap32(x) ((((x) & 0xFF000000UL) >> 24) | \ (((x) & 0x00FF0000UL) >> 8) | \ (((x) & 0x0000FF00UL) << 8) | \ (((x) & 0x000000FFUL) << 24)) typedef volatile uint8_t io8_t; typedef volatile uint16_t io16_t; typedef volatile uint32_t io32_t; #define RAM_BASE (0x00000000UL) #define RAM (*((io32_t *) RAM_BASE)) #define RAM_SIZE (16 * 1024) #define FLASH_BASE (0x10000000UL) #define FLASH (*((io32_t *) FLASH_BASE)) #define FLASH_SIZE (0x39800) #define FLASH_NUM_SECTORS (4) typedef volatile struct flash_config_regs { io32_t SR; io32_t CR; } flash_config_regs_t; #define FLASH_CONFIG_BASE (0x18000000UL) #define FLASH_CONFIG ((flash_config_regs_t *) FLASH_CONFIG_BASE) #define FLASH_SR_STATUS_MASK (3 << 0) #define FLASH_SR_STATUS_IDLE (0) #define FLASH_SR_STATUS_BUSY_ERASE (1) #define FLASH_SR_STATUS_BUSY_WRITE (2) #define FLASH_SR_STATUS_BUSY_READ (3) #define FLASH_SR_READ_SUCCESSFUL (1 << 2) #define FLASH_SR_WRITE_SUCCESSFUL (1 << 3) #define FLASH_SR_ERASE_SUCCESSFUL (1 << 4) #define FLASH_SR_WRITE_PROTECT_BIT (5) #define FLASH_CR_PAGE_ERASE_BIT (0) #define FLASH_CR_SECTOR_ERASE_BIT (20) #define FLASH_CR_SECTOR_ERASE_MASK (7 << FLASH_CR_SECTOR_ERASE_BIT) #define FLASH_CR_WRITE_PROTECT_BIT (23) typedef volatile struct gpio_regs { io8_t ODR; io8_t IDR; io8_t OER; io8_t __padding; } gpio_regs_t; #define GPIO_BASE (0x20000000UL) #define GPIO ((gpio_regs_t *) GPIO_BASE) typedef volatile struct i2c_regs { io32_t SCR; io32_t DR; } i2c_regs_t; #define I2C_BASE (0x30000000UL) #define I2C ((i2c_regs_t *) I2C_BASE) #define I2C_SCR_START (1 << 0) #define I2C_SCR_STOP (1 << 1) #define I2C_SCR_MACK (1 << 2) #define I2C_SCR_ACK (1 << 3) #define I2C_SCR_BUSY (1 << 4) typedef volatile struct usb_regs { io32_t SCR; io8_t DR; io8_t __padding_1[3]; io8_t ESCAPE; io8_t __padding_2[3]; } usb_regs_t; #define USB_BASE (0x40000000UL) #define USB ((usb_regs_t *) USB_BASE) #define USB_SCR_RXNE (1 << 0) #define USB_SCR_TXE (1 << 1) #define USB_SCR_FLUSH_RX (1 << 2) #define USB_SCR_FLUSH_TX (1 << 3) #define USB_SCR_ENABLED (1 << 4) #define USB_SCR_PWREN (1 << 5) #define USB_SCR_ESCAPE_PENDING (1 << 6) #define USB_SCR_ESCAPE_ACK (1 << 7) typedef volatile struct uart_regs { io32_t SCR; io8_t DR; io8_t __padding[3]; } uart_regs_t; #define UART_BASE (0x50000000UL) #define UART ((uart_regs_t *) UART_BASE) #define UART_SCR_RXNE (1 << 0) #define UART_SCR_TXE (1 << 1) typedef volatile struct dma_regs { io32_t SCR; io32_t MADDR; io32_t ID_LEN; } dma_regs_t; #define DMA_BASE (0x60000000UL) #define DMA ((dma_regs_t *) DMA_BASE) #define DMA_SCR_START (1 << 0) #define DMA_SCR_STOP (1 << 1) #define DMA_SCR_DIR (1 << 2) #define DMA_SCR_BUSY (1 << 3) typedef volatile struct cfg_regs { io32_t SCR; io32_t DDIPL_OFFSET; io32_t SAVE_OFFSET; io8_t CMD; io8_t __padding[3]; io32_t DATA[2]; io32_t VERSION; io32_t RECONFIGURE; } cfg_regs_t; #define CFG_BASE (0x70000000UL) #define CFG ((cfg_regs_t *) CFG_BASE) #define CFG_SCR_SDRAM_SWITCH (1 << 0) #define CFG_SCR_SDRAM_WRITABLE (1 << 1) #define CFG_SCR_DD_EN (1 << 2) #define CFG_SCR_SRAM_EN (1 << 3) #define CFG_SCR_SRAM_BANKED (1 << 4) #define CFG_SCR_FLASHRAM_EN (1 << 5) #define CFG_SCR_SKIP_BOOTLOADER (1 << 6) #define CFG_SCR_CMD_ERROR (1 << 28) #define CFG_SCR_USB_WAITING (1 << 29) #define CFG_SCR_CPU_BUSY (1 << 30) #define CFG_SCR_CPU_READY (1 << 31) #define SDRAM_BASE (0x80000000UL) #define SDRAM (*((io32_t *) SDRAM_BASE)) #define SDRAM_SIZE (64 * 1024 * 1024) typedef volatile struct flashram_regs { io32_t SCR; io32_t __padding[31]; io32_t BUFFER[32]; } flashram_regs_t; #define FLASHRAM_BASE (0x90000000UL) #define FLASHRAM ((flashram_regs_t *) FLASHRAM_BASE) #define FLASHRAM_OPERATION_PENDING (1 << 0) #define FLASHRAM_OPERATION_DONE (1 << 1) #define FLASHRAM_WRITE_OR_ERASE (1 << 2) #define FLASHRAM_SECTOR_OR_ALL (1 << 3) #define FLASHRAM_PAGE_BIT (8) typedef volatile struct joybus_regs { io32_t SCR; io32_t DATA[3]; } joybus_regs_t; #define JOYBUS_BASE (0xA0000000UL) #define JOYBUS ((joybus_regs_t *) JOYBUS_BASE) #define JOYBUS_SCR_RX_READY (1 << 0) #define JOYBUS_SCR_RX_STOP_BIT (1 << 1) #define JOYBUS_SCR_TX_START (1 << 2) #define JOYBUS_SCR_TX_BUSY (1 << 3) #define JOYBUS_SCR_RX_RESET (1 << 6) #define JOYBUS_SCR_TX_RESET (1 << 7) #define JOYBUS_SCR_RX_LENGTH_BIT (8) #define JOYBUS_SCR_RX_LENGTH_MASK (0x7F << JOYBUS_SCR_RX_LENGTH_BIT) #define JOYBUS_SCR_TX_LENGTH_BIT (16) typedef volatile struct dd_regs { io32_t SCR; io16_t DATA; io8_t CMD; io8_t __padding_1; io16_t HEAD_TRACK; io16_t __padding_2; io8_t SECTOR_NUM; io8_t SECTOR_SIZE; io8_t SECTOR_SIZE_FULL; io8_t SECTORS_IN_BLOCK; io16_t DRIVE_ID; io16_t __padding_3; io32_t SEEK_TIMER; io32_t __padding_4[58]; io32_t SECTOR_BUFFER[64]; } dd_regs_t; #define DD_BASE (0xB0000000UL) #define DD ((dd_regs_t *) DD_BASE) #define DD_SCR_HARD_RESET (1 << 0) #define DD_SCR_HARD_RESET_CLEAR (1 << 1) #define DD_SCR_CMD_PENDING (1 << 2) #define DD_SCR_CMD_READY (1 << 3) #define DD_SCR_BM_PENDING (1 << 4) #define DD_SCR_BM_READY (1 << 5) #define DD_SCR_DISK_INSERTED (1 << 6) #define DD_SCR_DISK_CHANGED (1 << 7) #define DD_SCR_BM_START (1 << 8) #define DD_SCR_BM_START_CLEAR (1 << 9) #define DD_SCR_BM_STOP (1 << 10) #define DD_SCR_BM_STOP_CLEAR (1 << 11) #define DD_SCR_BM_TRANSFER_MODE (1 << 12) #define DD_SCR_BM_TRANSFER_BLOCKS (1 << 13) #define DD_SCR_BM_TRANSFER_DATA (1 << 14) #define DD_SCR_BM_TRANSFER_C2 (1 << 15) #define DD_SCR_BM_MICRO_ERROR (1 << 16) #define DD_SCR_BM_ACK (1 << 17) #define DD_SCR_BM_ACK_CLEAR (1 << 18) #define DD_SCR_BM_CLEAR (1 << 19) #define DD_SCR_SEEK_TIMER_RESET (1 << 20) #define DD_TRACK_MASK (0x0FFF) #define DD_HEAD_MASK (0x1000) #define DD_HEAD_TRACK_MASK (DD_HEAD_MASK | DD_TRACK_MASK) #define DD_HEAD_TRACK_INDEX_LOCK (1 << 13) void reset_handler(void); #endif