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    picoxcell: support for Picochip picoxcell devices · af75655c
    Jamie Iles 提交于
    picoXcell is a family of femtocell devices with an ARM application
    processor and picoArray DSP processor array.
    
    This patch adds support for picoXcell boards to be booted using the
    device tree registering the VIC's, UART's and timers.
    
    v3:	- fixup vic compatible string in binding
    v2:	- cleanup empty mach headers
    	- convert to of_platform_populate()
    	- simplify uncompress.h
    	- split vic node into 2 devices
    	- add missing __initconst attributes
    Signed-off-by: NJamie Iles <jamie@jamieiles.com>
    af75655c
debug-macro.S 916 字节
/*
 * Copyright (c) 2011 Picochip Ltd., Jamie Iles
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
 * accesses to the 8250.
 */
#include <linux/serial_reg.h>
#include <mach/hardware.h>
#include <mach/map.h>

#define UART_SHIFT 2

		.macro	addruart, rp, rv
		ldr	\rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE)
		ldr	\rp, =PICOXCELL_UART1_BASE
		.endm

		.macro	senduart,rd,rx
		str	\rd, [\rx, #UART_TX << UART_SHIFT]
		.endm

		.macro	busyuart,rd,rx
1002:		ldr	\rd, [\rx, #UART_LSR << UART_SHIFT]
		and	\rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
		teq	\rd, #UART_LSR_TEMT | UART_LSR_THRE
		bne	1002b
		.endm

		/* The UART's don't have any flow control IO's wired up. */
		.macro	waituart,rd,rx
		.endm
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