a081568d70
As per the corresponding change to the serial drivers, arrange for ARM decompressors to give CRLF. Move the common putstr code into misc.c such that machines only need to supply "putc" and "flush" functions. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/*
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* linux/include/asm-arm/arch-omap/uncompress.h
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*
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* Serial port stubs for kernel decompress status messages
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*
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* Initially based on:
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* linux-2.4.15-rmk1-dsplinux1.6/include/asm-arm/arch-omap1510/uncompress.h
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* Copyright (C) 2000 RidgeRun, Inc.
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* Author: Greg Lonnon <glonnon@ridgerun.com>
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*
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* Rewritten by:
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* Author: <source@mvista.com>
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* 2004 (c) MontaVista Software, Inc.
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#include <linux/config.h>
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#include <linux/types.h>
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#include <linux/serial_reg.h>
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#include <asm/arch/serial.h>
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unsigned int system_rev;
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#define UART_OMAP_MDR1 0x08 /* mode definition register */
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#define OMAP_ID_730 0x355F
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#define ID_MASK 0x7fff
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#define check_port(base, shift) ((base[UART_OMAP_MDR1 << shift] & 7) == 0)
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#define omap_get_id() ((*(volatile unsigned int *)(0xfffed404)) >> 12) & ID_MASK
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static void putc(int c)
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{
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volatile u8 * uart = 0;
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int shift = 2;
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#ifdef CONFIG_MACH_OMAP_PALMTE
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return;
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#endif
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#ifdef CONFIG_ARCH_OMAP
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#ifdef CONFIG_OMAP_LL_DEBUG_UART3
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uart = (volatile u8 *)(OMAP_UART3_BASE);
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#elif defined(CONFIG_OMAP_LL_DEBUG_UART2)
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uart = (volatile u8 *)(OMAP_UART2_BASE);
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#else
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uart = (volatile u8 *)(OMAP_UART1_BASE);
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#endif
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#ifdef CONFIG_ARCH_OMAP1
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/* Determine which serial port to use */
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do {
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/* MMU is not on, so cpu_is_omapXXXX() won't work here */
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unsigned int omap_id = omap_get_id();
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if (omap_id == OMAP_ID_730)
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shift = 0;
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if (check_port(uart, shift))
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break;
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/* Silent boot if no serial ports are enabled. */
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return;
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} while (0);
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#endif /* CONFIG_ARCH_OMAP1 */
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#endif
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/*
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* Now, xmit each character
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*/
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while (!(uart[UART_LSR << shift] & UART_LSR_THRE))
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barrier();
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uart[UART_TX << shift] = c;
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}
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static inline void flush(void)
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{
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}
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/*
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* nothing to do
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*/
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#define arch_decomp_setup()
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#define arch_decomp_wdog()
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