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microwatt/include/microwatt_soc.h

49 lines
1.5 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 DRAM_CTRL_BASE 0xc0100000 /* LiteDRAM control registers */
#define DRAM_INIT_BASE 0xf0000000 /* Internal DRAM init firmware */
/*
* 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_BRAMINFO 0x10
#define SYS_REG_DRAMINFO 0x18
#define SYS_REG_CLKINFO 0x20
#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)
/*
* 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
#endif /* __MICROWATT_SOC_H */