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/*
* Arch specific code for ramips based boards
*
* Copyright (C) 2013 John Crispin <blogic@openwrt.org>
* Copyright (C) 2018 Tobias Schramm <tobleminer@gmail.com>
* Copyright (C) 2023 Antonio Vázquez <antoniovazquezblanco@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <stdint.h>
#if defined(SOC_MT7620) || defined(SOC_RT3883)
#define UART_BASE 0xb0000c00
#define UART_THR (UART_BASE + 0x04)
#define UART_LSR (UART_BASE + 0x1c)
#define UART_LSR_THRE_MASK 0x40
#elif defined(SOC_MT7621)
#define UART_BASE 0xbe000c00
#define UART_THR (UART_BASE + 0x00)
#define UART_LSR (UART_BASE + 0x14)
#define UART_LSR_THRE_MASK 0x20
#elif defined(SOC_RT305X)
#define UART_BASE 0x10000500
#define UART_THR (UART_BASE + 0x04)
#define UART_LSR (UART_BASE + 0x1c)
#define UART_LSR_THRE_MASK 0x20
#else
#error "Unsupported SOC..."
#endif
// Helper functions
#define READREG(r) (*(volatile uint32_t *)(r))
#define WRITEREG(r,v) (*(volatile uint32_t *)(r)) = v
void board_init(void)
{
}
void board_putc(int ch)
{
while ((READREG(UART_LSR) & UART_LSR_THRE_MASK) == 0);
WRITEREG(UART_THR, ch);
while ((READREG(UART_LSR) & UART_LSR_THRE_MASK) == 0);
}
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