diff options
Diffstat (limited to 'arch/arm/mach-ebsa110/include/mach/uncompress.h')
-rw-r--r-- | arch/arm/mach-ebsa110/include/mach/uncompress.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-ebsa110/include/mach/uncompress.h b/arch/arm/mach-ebsa110/include/mach/uncompress.h new file mode 100644 index 000000000..3ec12efe9 --- /dev/null +++ b/arch/arm/mach-ebsa110/include/mach/uncompress.h @@ -0,0 +1,41 @@ +/* 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() |