| 1 | /* |
| 2 | * Copyright (C) 2012, Florian Fainelli <florian@openwrt.org> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_ARCH_UNCOMPRESS_H |
| 10 | #define __ASM_ARCH_UNCOMPRESS_H |
| 11 | |
| 12 | #include <linux/serial_reg.h> |
| 13 | #include <asm/io.h> |
| 14 | #include <mach/mcs814x.h> |
| 15 | #include <mach/cpu.h> |
| 16 | |
| 17 | #define UART_SHIFT (2) |
| 18 | |
| 19 | /* cannot be static because the code will be inlined */ |
| 20 | void __iomem *uart_base; |
| 21 | |
| 22 | static inline void putc(int c) |
| 23 | { |
| 24 | while (!(__raw_readb(uart_base + (UART_LSR << UART_SHIFT)) & UART_LSR_TEMT)); |
| 25 | __raw_writeb(c, uart_base + (UART_TX << UART_SHIFT)); |
| 26 | } |
| 27 | |
| 28 | static inline void flush(void) |
| 29 | { |
| 30 | } |
| 31 | |
| 32 | static inline void arch_decomp_setup(void) |
| 33 | { |
| 34 | if (soc_is_mcs8140()) |
| 35 | uart_base = (void __iomem *)(MCS814X_PHYS_BASE +MCS814X_UART); |
| 36 | } |
| 37 | |
| 38 | #define arch_decomp_wdog() |
| 39 | |
| 40 | #endif |
| 41 | |
