| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * arch/arm/mach-ebsa110/include/mach/uncompress.h |
| * |
| * Copyright (C) 1996,1997,1998 Russell King |
| */ |
| |
| #include <linux/serial_reg.h> |
| |
| #define SERIAL_BASE ((unsigned char *)0xf0000be0) |
| |
| /* |
| * This does not append a newline |
| */ |
| static inline void putc(int c) |
| { |
| unsigned char v, *base = SERIAL_BASE; |
| |
| do { |
| v = base[UART_LSR << 2]; |
| barrier(); |
| } while (!(v & UART_LSR_THRE)); |
| |
| base[UART_TX << 2] = c; |
| } |
| |
| static inline void flush(void) |
| { |
| unsigned char v, *base = SERIAL_BASE; |
| |
| do { |
| v = base[UART_LSR << 2]; |
| barrier(); |
| } while ((v & (UART_LSR_TEMT|UART_LSR_THRE)) != |
| (UART_LSR_TEMT|UART_LSR_THRE)); |
| } |
| |
| /* |
| * nothing to do |
| */ |
| #define arch_decomp_setup() |
