Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *  Copyright (C) 2010 John Crispin <john@phrozen.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/cpu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <lantiq_soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define ASC_BUF		1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define LTQ_ASC_FSTAT	((u32 *)(LTQ_EARLY_ASC + 0x0048))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifdef __BIG_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define LTQ_ASC_TBUF	((u32 *)(LTQ_EARLY_ASC + 0x0020 + 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define LTQ_ASC_TBUF	((u32 *)(LTQ_EARLY_ASC + 0x0020))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define TXMASK		0x3F00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define TXOFFSET	8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) void prom_putchar(char c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	local_irq_save(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	do { } while ((ltq_r32(LTQ_ASC_FSTAT) & TXMASK) >> TXOFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	if (c == '\n')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		ltq_w8('\r', LTQ_ASC_TBUF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	ltq_w8(c, LTQ_ASC_TBUF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	local_irq_restore(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) }