linux-stable-rt/arch/arm/mach-davinci/include/mach/uncompress.h

/*
 * Serial port stubs for kernel decompress status messages
 *
 *  Author:     Anant Gole
 * (C) Copyright (C) 2006, Texas Instruments, Inc
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

#include <linux/types.h>
#include <linux/serial_reg.h>
#include <mach/serial.h>

#include <asm/mach-types.h>

extern unsigned int __machine_arch_type;

static u32 *uart;

static u32 *get_uart_base(void)
{
	if (__machine_arch_type == MACH_TYPE_DAVINCI_DA830_EVM ||
		__machine_arch_type == MACH_TYPE_DAVINCI_DA850_EVM)
		return (u32 *)DA8XX_UART2_BASE;
	else
		return (u32 *)DAVINCI_UART0_BASE;
}

/* PORT_16C550A, in polled non-fifo mode */

static void putc(char c)
{
	if (!uart)
		uart = get_uart_base();

	while (!(uart[UART_LSR] & UART_LSR_THRE))
		barrier();
	uart[UART_TX] = c;
}

static inline void flush(void)
{
	if (!uart)
		uart = get_uart_base();

	while (!(uart[UART_LSR] & UART_LSR_THRE))
		barrier();
}

#define arch_decomp_setup()
#define arch_decomp_wdog()