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// The Potato Processor Benchmark Applications

// (c) Kristian Klomsten Skordal 2015 <kristian.skordal@wafflemail.net>

// Report bugs and issues on <http://opencores.org/project,potato,bugtracker>

// This file contains various platform details. The default defines in this file

// correspond to the "official" test platform, the Potato SoC for the Nexys4 board.

#ifndef PLATFORM_H

#define PLATFORM_H

// Clock frequency in Hz:

#define SYSTEM_CLK_FREQ 50000000

// Macro for using the addresses below in C code:

#define IO_ADDRESS(x)   ((volatile void *) x)

// Base addresses for the various peripherals in the system:

#define IMEM_BASE       0x00000000

#define DMEM_BASE       0x00002000

#define GPIO1_BASE      0x00004000 

#define GPIO2_BASE      0x00004800

#define UART_BASE       0x00005000

#define TIMER_BASE      0x00005800

#define SEG7_BASE       0x00006000

// IRQs:

#define IRQ_EXTERNAL    0

#define IRQ_UART_RTS    1

#define IRQ_UART_RECV   2

#define IRQ_TIMER       5

// GPIO register offsets:

#define GPIO_INPUT      0

#define GPIO_OUTPUT     4

#define GPIO_DIR        8

// UART register offsets:

#define UART_TX         0

#define UART_RX         4

#define UART_STATUS     8

// UART status register bits:

#define UART_STATUS_RXBUF_EMPTY 0

#define UART_STATUS_TXBUF_EMPTY 1

#define UART_STATUS_RXBUF_FULL  2

#define UART_STATUS_TXBUF_FULL  3

// Timer register offsets:

#define TIMER_CTRL      0

#define TIMER_COMPARE   4

#define TIMER_COUNTER   8

// Timer control register bits:

#define TIMER_CTRL_RUN          0

#define TIMER_CTRL_CLEAR        1

// 7-Segment register offsets:

#define SEG7_ENABLE     0

#define SEG7_VALUE      4

#endif