forked from cores/microwatt
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
3.7 KiB
C
93 lines
3.7 KiB
C
#ifndef __MICROWATT_SOC_H
|
|
#define __MICROWATT_SOC_H
|
|
|
|
/*
|
|
* Microwatt SoC memory map
|
|
*/
|
|
|
|
#define MEMORY_BASE 0x00000000 /* "Main" memory alias, either BRAM or DRAM */
|
|
#define DRAM_BASE 0x40000000 /* DRAM if present */
|
|
#define BRAM_BASE 0x80000000 /* Internal BRAM */
|
|
|
|
#define SYSCON_BASE 0xc0000000 /* System control regs */
|
|
#define UART_BASE 0xc0002000 /* UART */
|
|
#define XICS_BASE 0xc0004000 /* Interrupt controller */
|
|
#define SPI_FCTRL_BASE 0xc0006000 /* SPI flash controller registers */
|
|
#define DRAM_CTRL_BASE 0xc8000000 /* LiteDRAM control registers */
|
|
#define SPI_FLASH_BASE 0xf0000000 /* SPI Flash memory map */
|
|
#define DRAM_INIT_BASE 0xff000000 /* Internal DRAM init firmware */
|
|
|
|
/*
|
|
* Interrupt numbers
|
|
*/
|
|
#define IRQ_UART0 0
|
|
|
|
/*
|
|
* Register definitions for the syscon registers
|
|
*/
|
|
|
|
#define SYS_REG_SIGNATURE 0x00
|
|
#define SYS_REG_INFO 0x08
|
|
#define SYS_REG_INFO_HAS_UART (1ull << 0)
|
|
#define SYS_REG_INFO_HAS_DRAM (1ull << 1)
|
|
#define SYS_REG_INFO_HAS_BRAM (1ull << 2)
|
|
#define SYS_REG_INFO_HAS_SPI_FLASH (1ull << 3)
|
|
#define SYS_REG_BRAMINFO 0x10
|
|
#define SYS_REG_BRAMINFO_SIZE_MASK 0xfffffffffffffull
|
|
#define SYS_REG_DRAMINFO 0x18
|
|
#define SYS_REG_DRAMINFO_SIZE_MASK 0xfffffffffffffull
|
|
#define SYS_REG_CLKINFO 0x20
|
|
#define SYS_REG_CLKINFO_FREQ_MASK 0xffffffffffull
|
|
#define SYS_REG_CTRL 0x28
|
|
#define SYS_REG_CTRL_DRAM_AT_0 (1ull << 0)
|
|
#define SYS_REG_CTRL_CORE_RESET (1ull << 1)
|
|
#define SYS_REG_CTRL_SOC_RESET (1ull << 2)
|
|
#define SYS_REG_DRAMINITINFO 0x30
|
|
#define SYS_REG_SPI_INFO 0x38
|
|
#define SYS_REG_SPI_INFO_FLASH_OFF_MASK 0xffffffff
|
|
|
|
|
|
|
|
/*
|
|
* Register definitions for the potato UART
|
|
*/
|
|
#define POTATO_CONSOLE_TX 0x00
|
|
#define POTATO_CONSOLE_RX 0x08
|
|
#define POTATO_CONSOLE_STATUS 0x10
|
|
#define POTATO_CONSOLE_STATUS_RX_EMPTY 0x01
|
|
#define POTATO_CONSOLE_STATUS_TX_EMPTY 0x02
|
|
#define POTATO_CONSOLE_STATUS_RX_FULL 0x04
|
|
#define POTATO_CONSOLE_STATUS_TX_FULL 0x08
|
|
#define POTATO_CONSOLE_CLOCK_DIV 0x18
|
|
#define POTATO_CONSOLE_IRQ_EN 0x20
|
|
|
|
/*
|
|
* Register definitions for the SPI controller
|
|
*/
|
|
#define SPI_REG_DATA 0x00 /* Byte access: single wire transfer */
|
|
#define SPI_REG_DATA_DUAL 0x01 /* Byte access: dual wire transfer */
|
|
#define SPI_REG_DATA_QUAD 0x02 /* Byte access: quad wire transfer */
|
|
#define SPI_REG_CTRL 0x04 /* Reset and manual mode control */
|
|
#define SPI_REG_CTRL_RESET 0x01 /* reset all registers */
|
|
#define SPI_REG_CTRL_MANUAL_CS 0x02 /* assert CS, enable manual mode */
|
|
#define SPI_REG_CTRL_CKDIV_SHIFT 8 /* clock div */
|
|
#define SPI_REG_CTRL_CKDIV_MASK (0xff << SPI_REG_CTRL_CKDIV_SHIFT)
|
|
#define SPI_REG_AUTO_CFG 0x08 /* Automatic map configuration */
|
|
#define SPI_REG_AUTO_CFG_CMD_SHIFT 0 /* Command to use for reads */
|
|
#define SPI_REG_AUTO_CFG_CMD_MASK (0xff << SPI_REG_AUTO_CFG_CMD_SHIFT)
|
|
#define SPI_REG_AUTO_CFG_DUMMIES_SHIFT 8 /* # dummy cycles */
|
|
#define SPI_REG_AUTO_CFG_DUMMIES_MASK (0x7 << SPI_REG_AUTO_CFG_DUMMIES_SHIFT)
|
|
#define SPI_REG_AUTO_CFG_MODE_SHIFT 11 /* SPI wire mode */
|
|
#define SPI_REG_AUTO_CFG_MODE_MASK (0x3 << SPI_REG_AUTO_CFG_MODE_SHIFT)
|
|
#define SPI_REG_AUT_CFG_MODE_SINGLE (0 << 11)
|
|
#define SPI_REG_AUT_CFG_MODE_DUAL (2 << 11)
|
|
#define SPI_REG_AUT_CFG_MODE_QUAD (3 << 11)
|
|
#define SPI_REG_AUTO_CFG_ADDR4 (1u << 13) /* 3 or 4 addr bytes */
|
|
#define SPI_REG_AUTO_CFG_CKDIV_SHIFT 16 /* clock div */
|
|
#define SPI_REG_AUTO_CFG_CKDIV_MASK (0xff << SPI_REG_AUTO_CFG_CKDIV_SHIFT)
|
|
#define SPI_REG_AUTO_CFG_CSTOUT_SHIFT 24 /* CS timeout */
|
|
#define SPI_REG_AUTO_CFG_CSTOUT_MASK (0x3f << SPI_REG_AUTO_CFG_CSTOUT_SHIFT)
|
|
|
|
|
|
#endif /* __MICROWATT_SOC_H */
|