2 * linux/include/asm-arm/arch-omap/uncompress.h
4 * Serial port stubs for kernel decompress status messages
7 * linux-2.4.15-rmk1-dsplinux1.6/include/asm-arm/arch-omap1510/uncompress.h
8 * Copyright (C) 2000 RidgeRun, Inc.
9 * Author: Greg Lonnon <glonnon@ridgerun.com>
12 * Author: <source@mvista.com>
13 * 2004 (c) MontaVista Software, Inc.
15 * This file is licensed under the terms of the GNU General Public License
16 * version 2. This program is licensed "as is" without any warranty of any
17 * kind, whether express or implied.
20 #include <linux/config.h>
21 #include <linux/types.h>
22 #include <linux/serial_reg.h>
23 #include <asm/arch/serial.h>
25 unsigned int system_rev;
27 #define UART_OMAP_MDR1 0x08 /* mode definition register */
28 #define OMAP_ID_730 0x355F
29 #define ID_MASK 0x7fff
30 #define check_port(base, shift) ((base[UART_OMAP_MDR1 << shift] & 7) == 0)
31 #define omap_get_id() ((*(volatile unsigned int *)(0xfffed404)) >> 12) & ID_MASK
36 volatile u8 * uart = 0;
39 #ifdef CONFIG_MACH_OMAP_PALMTE
43 #ifdef CONFIG_ARCH_OMAP
44 #ifdef CONFIG_OMAP_LL_DEBUG_UART3
45 uart = (volatile u8 *)(OMAP_UART3_BASE);
46 #elif defined(CONFIG_OMAP_LL_DEBUG_UART2)
47 uart = (volatile u8 *)(OMAP_UART2_BASE);
49 uart = (volatile u8 *)(OMAP_UART1_BASE);
52 #ifdef CONFIG_ARCH_OMAP1
53 /* Determine which serial port to use */
55 /* MMU is not on, so cpu_is_omapXXXX() won't work here */
56 unsigned int omap_id = omap_get_id();
58 if (omap_id == OMAP_ID_730)
61 if (check_port(uart, shift))
63 /* Silent boot if no serial ports are enabled. */
66 #endif /* CONFIG_ARCH_OMAP1 */
70 * Now, xmit each character
73 while (!(uart[UART_LSR << shift] & UART_LSR_THRE))
75 uart[UART_TX << shift] = *s;
77 while (!(uart[UART_LSR << shift] & UART_LSR_THRE))
79 uart[UART_TX << shift] = '\r';
87 #define arch_decomp_setup()
88 #define arch_decomp_wdog()