mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
437db59036
Header files for the LPC32xx arch Signed-off-by: Kevin Wells <wellsk40@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
|
|
* arch/arm/mach-lpc32xx/include/mach/uncompress.h
|
|
*
|
|
* Author: Kevin Wells <kevin.wells@nxp.com>
|
|
*
|
|
* Copyright (C) 2010 NXP Semiconductors
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef __ASM_ARM_ARCH_UNCOMPRESS_H
|
|
#define __ASM_ARM_ARCH_UNCOMPRESS_H
|
|
|
|
#include <linux/io.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/platform.h>
|
|
|
|
/*
|
|
* Uncompress output is hardcoded to standard UART 5
|
|
*/
|
|
|
|
#define UART_FIFO_CTL_TX_RESET (1 << 2)
|
|
#define UART_STATUS_TX_MT (1 << 6)
|
|
|
|
#define _UARTREG(x) (void __iomem *)(LPC32XX_UART5_BASE + (x))
|
|
|
|
#define LPC32XX_UART_DLLFIFO_O 0x00
|
|
#define LPC32XX_UART_IIRFCR_O 0x08
|
|
#define LPC32XX_UART_LSR_O 0x14
|
|
|
|
static inline void putc(int ch)
|
|
{
|
|
/* Wait for transmit FIFO to empty */
|
|
while ((__raw_readl(_UARTREG(LPC32XX_UART_LSR_O)) &
|
|
UART_STATUS_TX_MT) == 0)
|
|
;
|
|
|
|
__raw_writel((u32) ch, _UARTREG(LPC32XX_UART_DLLFIFO_O));
|
|
}
|
|
|
|
static inline void flush(void)
|
|
{
|
|
__raw_writel(__raw_readl(_UARTREG(LPC32XX_UART_IIRFCR_O)) |
|
|
UART_FIFO_CTL_TX_RESET, _UARTREG(LPC32XX_UART_IIRFCR_O));
|
|
}
|
|
|
|
/* NULL functions; we don't presently need them */
|
|
#define arch_decomp_setup()
|
|
#define arch_decomp_wdog()
|
|
|
|
#endif
|