| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/plat-spear/include/plat/uncompress.h |
| 3 | * |
| 4 | * Serial port stubs for kernel decompress status messages |
| 5 | * |
| 6 | * Copyright (C) 2009 ST Microelectronics |
| Viresh Kumar | 10d8935 | 2012-06-20 12:53:02 -0700 | [diff] [blame^] | 7 | * Viresh Kumar <viresh.linux@gmail.com> |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 8 | * |
| 9 | * This file is licensed under the terms of the GNU General Public |
| 10 | * License version 2. This program is licensed "as is" without any |
| 11 | * warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/io.h> |
| 15 | #include <linux/amba/serial.h> |
| Arnd Bergmann | 5019f0b | 2012-04-11 17:30:11 +0000 | [diff] [blame] | 16 | #include <mach/spear.h> |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 17 | |
| 18 | #ifndef __PLAT_UNCOMPRESS_H |
| 19 | #define __PLAT_UNCOMPRESS_H |
| 20 | /* |
| 21 | * This does not append a newline |
| 22 | */ |
| 23 | static inline void putc(int c) |
| 24 | { |
| 25 | void __iomem *base = (void __iomem *)SPEAR_DBG_UART_BASE; |
| 26 | |
| viresh kumar | ac1556b | 2011-02-16 07:41:06 +0100 | [diff] [blame] | 27 | while (readl_relaxed(base + UART01x_FR) & UART01x_FR_TXFF) |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 28 | barrier(); |
| 29 | |
| viresh kumar | ac1556b | 2011-02-16 07:41:06 +0100 | [diff] [blame] | 30 | writel_relaxed(c, base + UART01x_DR); |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | static inline void flush(void) |
| 34 | { |
| 35 | } |
| 36 | |
| 37 | /* |
| 38 | * nothing to do |
| 39 | */ |
| 40 | #define arch_decomp_setup() |
| 41 | #define arch_decomp_wdog() |
| 42 | |
| 43 | #endif /* __PLAT_UNCOMPRESS_H */ |