42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
// See LICENSE for license details.
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#ifndef _ISS_PLATFORM_H
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#define _ISS_PLATFORM_H
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// Some things missing from the official encoding.h
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#define MCAUSE_INT 0x80000000
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#define MCAUSE_CAUSE 0x7FFFFFFF
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#define UART0_BASE_ADDR 0xffff0000ULL
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#define UART_REG_TXFIFO 0x00
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#define UART_REG_RXFIFO 0x04
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#define UART_REG_TXCTRL 0x08
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#define UART_REG_RXCTRL 0x0c
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#define UART_REG_IE 0x10
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#define UART_REG_IP 0x14
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#define UART_REG_DIV 0x18
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#define UART_TXEN 0x1
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#define UART0_REG(ADDR) *((volatile uint32_t*) (UART0_BASE_ADDR + ADDR))
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/****************************************************************************
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* Platform definitions
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*****************************************************************************/
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#define MEM_BASE_ADDR _AC(0x00000000,UL)
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// Helper functions
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#define _REG32(p, i) (*(volatile uint32_t *) ((p) + (i)))
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#define _REG32P(p, i) ((volatile uint32_t *) ((p) + (i)))
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// Misc
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#include <stdint.h>
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void init_pll(void);
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unsigned long get_cpu_freq(void);
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unsigned long get_timer_freq(void);
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uint64_t get_timer_value(void);
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#endif /* _ISS_PLATFORM_H */
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