c31319b669
* Delete unused lantiq makefile * Delete redundant makefiles and unify them into the main makefile * Refactor and unify board code into a single file * Add support and review subtarget specific board support Signed-off-by: Antonio Vázquez <antoniovazquezblanco@gmail.com>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* Arch specific code for ramips based boards
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*
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* Copyright (C) 2013 John Crispin <blogic@openwrt.org>
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* Copyright (C) 2018 Tobias Schramm <tobleminer@gmail.com>
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* Copyright (C) 2023 Antonio Vázquez <antoniovazquezblanco@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <stdint.h>
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#if defined(SOC_MT7620) || defined(SOC_RT3883)
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#define UART_BASE 0xb0000c00
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#define UART_THR (UART_BASE + 0x04)
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#define UART_LSR (UART_BASE + 0x1c)
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#define UART_LSR_THRE_MASK 0x40
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#elif defined(SOC_MT7621)
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#define UART_BASE 0xbe000c00
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#define UART_THR (UART_BASE + 0x00)
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#define UART_LSR (UART_BASE + 0x14)
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#define UART_LSR_THRE_MASK 0x20
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#elif defined(SOC_RT305X)
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#define UART_BASE 0x10000500
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#define UART_THR (UART_BASE + 0x04)
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#define UART_LSR (UART_BASE + 0x1c)
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#define UART_LSR_THRE_MASK 0x20
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#else
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#error "Unsupported SOC..."
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#endif
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// Helper functions
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#define READREG(r) (*(volatile uint32_t *)(r))
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#define WRITEREG(r,v) (*(volatile uint32_t *)(r)) = v
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void board_init(void)
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{
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}
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void board_putc(int ch)
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{
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while ((READREG(UART_LSR) & UART_LSR_THRE_MASK) == 0);
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WRITEREG(UART_THR, ch);
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while ((READREG(UART_LSR) & UART_LSR_THRE_MASK) == 0);
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}
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