27428e39da
The davinci pre-kernel boot code assumes that all platforms use the same UART base address for the console. That assumption is not longer valid with some newer SoCs so determine the console UART base address from the machine number passed in from bootloader. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
50 lines
1,022 B
C
50 lines
1,022 B
C
/*
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* Serial port stubs for kernel decompress status messages
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*
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* Author: Anant Gole
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* (C) Copyright (C) 2006, Texas Instruments, 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/types.h>
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#include <linux/serial_reg.h>
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#include <mach/serial.h>
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#include <asm/mach-types.h>
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extern unsigned int __machine_arch_type;
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static u32 *uart;
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static u32 *get_uart_base(void)
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{
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/* Add logic here for new platforms, using __macine_arch_type */
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return (u32 *)DAVINCI_UART0_BASE;
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}
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/* PORT_16C550A, in polled non-fifo mode */
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static void putc(char c)
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{
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if (!uart)
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uart = get_uart_base();
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while (!(uart[UART_LSR] & UART_LSR_THRE))
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barrier();
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uart[UART_TX] = c;
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}
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static inline void flush(void)
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{
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if (!uart)
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uart = get_uart_base();
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while (!(uart[UART_LSR] & UART_LSR_THRE))
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barrier();
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}
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#define arch_decomp_setup()
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#define arch_decomp_wdog()
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