| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * arch/arm/mach-realview/include/mach/uncompress.h |
| 3 | * |
| 4 | * Copyright (C) 2003 ARM Limited |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <mach/hardware.h> |
| 21 | #include <asm/mach-types.h> |
| 22 | |
| 23 | #include <mach/board-eb.h> |
| 24 | #include <mach/board-pb11mp.h> |
| 25 | #include <mach/board-pb1176.h> |
| 26 | |
| 27 | #define AMBA_UART_DR(base) (*(volatile unsigned char *)((base) + 0x00)) |
| 28 | #define AMBA_UART_LCRH(base) (*(volatile unsigned char *)((base) + 0x2c)) |
| 29 | #define AMBA_UART_CR(base) (*(volatile unsigned char *)((base) + 0x30)) |
| 30 | #define AMBA_UART_FR(base) (*(volatile unsigned char *)((base) + 0x18)) |
| 31 | |
| 32 | /* |
| 33 | * Return the UART base address |
| 34 | */ |
| 35 | static inline unsigned long get_uart_base(void) |
| 36 | { |
| 37 | if (machine_is_realview_eb()) |
| 38 | return REALVIEW_EB_UART0_BASE; |
| 39 | else if (machine_is_realview_pb11mp()) |
| 40 | return REALVIEW_PB11MP_UART0_BASE; |
| 41 | else if (machine_is_realview_pb1176()) |
| 42 | return REALVIEW_PB1176_UART0_BASE; |
| 43 | else |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | /* |
| 48 | * This does not append a newline |
| 49 | */ |
| 50 | static inline void putc(int c) |
| 51 | { |
| 52 | unsigned long base = get_uart_base(); |
| 53 | |
| 54 | while (AMBA_UART_FR(base) & (1 << 5)) |
| 55 | barrier(); |
| 56 | |
| 57 | AMBA_UART_DR(base) = c; |
| 58 | } |
| 59 | |
| 60 | static inline void flush(void) |
| 61 | { |
| 62 | unsigned long base = get_uart_base(); |
| 63 | |
| 64 | while (AMBA_UART_FR(base) & (1 << 3)) |
| 65 | barrier(); |
| 66 | } |
| 67 | |
| 68 | /* |
| 69 | * nothing to do |
| 70 | */ |
| 71 | #define arch_decomp_setup() |
| 72 | #define arch_decomp_wdog() |