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Commit ad1bb1b4 authored by Tony Lindgren's avatar Tony Lindgren
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ARM: OMAP2+: Remove now obsolete uncompress.h and debug-macro.S



These are no longer needed, we now have to select the
debug_ll port manually. The new multiplatform version of the
debug_ll code is in arch/arm/include/debug/omap2plus.S.

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent ef4196fb
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+0 −165
Original line number Original line Diff line number Diff line
/* arch/arm/mach-omap2/include/mach/debug-macro.S
 *
 * Debugging macro include header
 *
 *  Copyright (C) 1994-1999 Russell King
 *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
 *
 * 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.
 *
*/

#include <linux/serial_reg.h>

#include <mach/serial.h>

#define UART_OFFSET(addr)	((addr) & 0x00ffffff)

		.pushsection .data
omap_uart_phys:	.word	0
omap_uart_virt:	.word	0
omap_uart_lsr:	.word	0
		.popsection

		/*
		 * Note that this code won't work if the bootloader passes
		 * a wrong machine ID number in r1. To debug, just hardcode
		 * the desired UART phys and virt addresses temporarily into
		 * the omap_uart_phys and omap_uart_virt above.
		 */
		.macro	addruart, rp, rv, tmp

		/* Use omap_uart_phys/virt if already configured */
10:		adr	\rp, 99f		@ get effective addr of 99f
		ldr	\rv, [\rp]		@ get absolute addr of 99f
		sub	\rv, \rv, \rp		@ offset between the two
		ldr	\rp, [\rp, #4]		@ abs addr of omap_uart_phys
		sub	\tmp, \rp, \rv		@ make it effective
		ldr	\rp, [\tmp, #0]		@ omap_uart_phys
		ldr	\rv, [\tmp, #4]		@ omap_uart_virt
		cmp	\rp, #0			@ is port configured?
		cmpne	\rv, #0
		bne	100f			@ already configured

		/* Check the debug UART configuration set in uncompress.h */
		mov	\rp, pc
		ldr	\rv, =OMAP_UART_INFO_OFS
		and	\rp, \rp, #0xff000000
		ldr	\rp, [\rp, \rv]

		/* Select the UART to use based on the UART1 scratchpad value */
		cmp	\rp, #0			@ no port configured?
		beq	21f			@ if none, try to use UART1
		cmp	\rp, #OMAP2UART1	@ OMAP2/3/4UART1
		beq	21f			@ configure OMAP2/3/4UART1
		cmp	\rp, #OMAP2UART2	@ OMAP2/3/4UART2
		beq	22f			@ configure OMAP2/3/4UART2
		cmp	\rp, #OMAP2UART3	@ only on 24xx
		beq	23f			@ configure OMAP2UART3
		cmp	\rp, #OMAP3UART3	@ only on 34xx
		beq	33f			@ configure OMAP3UART3
		cmp	\rp, #OMAP4UART3	@ only on 44xx/54xx
		beq	43f			@ configure OMAP4/5UART3
		cmp	\rp, #OMAP3UART4	@ only on 36xx
		beq	34f			@ configure OMAP3UART4
		cmp	\rp, #OMAP4UART4	@ only on 44xx/54xx
		beq	44f			@ configure OMAP4/5UART4
		cmp	\rp, #TI81XXUART1	@ ti81Xx UART offsets different
		beq	81f			@ configure UART1
		cmp	\rp, #TI81XXUART2	@ ti81Xx UART offsets different
		beq	82f			@ configure UART2
		cmp	\rp, #TI81XXUART3	@ ti81Xx UART offsets different
		beq	83f			@ configure UART3
		cmp	\rp, #AM33XXUART1	@ AM33XX UART offsets different
		beq	84f			@ configure UART1
		cmp	\rp, #ZOOM_UART		@ only on zoom2/3
		beq	95f			@ configure ZOOM_UART

		/* Configure the UART offset from the phys/virt base */
21:		mov	\rp, #UART_OFFSET(OMAP2_UART1_BASE)	@ omap2/3/4
		b	98f
22:		mov	\rp, #UART_OFFSET(OMAP2_UART2_BASE)	@ omap2/3/4
		b	98f
23:		mov	\rp, #UART_OFFSET(OMAP2_UART3_BASE)
		b	98f
33:		mov	\rp, #UART_OFFSET(OMAP3_UART1_BASE)
		add	\rp, \rp, #0x00fb0000
		add	\rp, \rp, #0x00006000		@ OMAP3_UART3_BASE
		b	98f
34:		mov	\rp, #UART_OFFSET(OMAP3_UART1_BASE)
		add	\rp, \rp, #0x00fb0000
		add	\rp, \rp, #0x00028000		@ OMAP3_UART4_BASE
		b	98f
43:		mov	\rp, #UART_OFFSET(OMAP4_UART3_BASE)
		b	98f
44:		mov	\rp, #UART_OFFSET(OMAP4_UART4_BASE)
		b	98f
81:		mov	\rp, #UART_OFFSET(TI81XX_UART1_BASE)
		b	98f
82:		mov	\rp, #UART_OFFSET(TI81XX_UART2_BASE)
		b	98f
83:		mov	\rp, #UART_OFFSET(TI81XX_UART3_BASE)
		b	98f
84:		ldr	\rp, =AM33XX_UART1_BASE
		and	\rp, \rp, #0x00ffffff
		b	97f
95:		ldr	\rp, =ZOOM_UART_BASE
		str	\rp, [\tmp, #0]		@ omap_uart_phys
		ldr	\rp, =ZOOM_UART_VIRT
		str	\rp, [\tmp, #4]		@ omap_uart_virt
		mov	\rp, #(UART_LSR << ZOOM_PORT_SHIFT)
		str	\rp, [\tmp, #8]		@ omap_uart_lsr
		b	10b

		/* AM33XX: Store both phys and virt address for the uart */
97:		add	\rp, \rp, #0x44000000	@ phys base
		str	\rp, [\tmp, #0]		@ omap_uart_phys
		sub	\rp, \rp, #0x44000000	@ phys base
		add	\rp, \rp, #0xf9000000	@ virt base
		str	\rp, [\tmp, #4]		@ omap_uart_virt
		mov	\rp, #(UART_LSR << OMAP_PORT_SHIFT)
		str	\rp, [\tmp, #8]		@ omap_uart_lsr

		b	10b

		/* Store both phys and virt address for the uart */
98:		add	\rp, \rp, #0x48000000	@ phys base
		str	\rp, [\tmp, #0]		@ omap_uart_phys
		sub	\rp, \rp, #0x48000000	@ phys base
		add	\rp, \rp, #0xfa000000	@ virt base
		str	\rp, [\tmp, #4]		@ omap_uart_virt
		mov	\rp, #(UART_LSR << OMAP_PORT_SHIFT)
		str	\rp, [\tmp, #8]		@ omap_uart_lsr

		b	10b

		.align
99:		.word	.
		.word	omap_uart_phys
		.ltorg

100:		/* Pass the UART_LSR reg address */
		ldr	\tmp, [\tmp, #8]	@ omap_uart_lsr
		add	\rp, \rp, \tmp
		add	\rv, \rv, \tmp
		.endm

		.macro	senduart,rd,rx
		orr	\rd, \rd, \rx, lsl #24	@ preserve LSR reg offset
		bic	\rx, \rx, #0xff		@ get base (THR) reg address
		strb	\rd, [\rx]		@ send lower byte of rd
		orr	\rx, \rx, \rd, lsr #24	@ restore original rx (LSR)
		bic	\rd, \rd, #(0xff << 24)	@ restore original rd
		.endm

		.macro	busyuart,rd,rx
1001:		ldrb	\rd, [\rx]		@ rx contains UART_LSR address
		and	\rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE)
		teq	\rd, #(UART_LSR_TEMT | UART_LSR_THRE)
		bne	1001b
		.endm

		.macro	waituart,rd,rx
		.endm
+0 −37
Original line number Original line Diff line number Diff line
@@ -8,20 +8,6 @@
 * GNU General Public License for more details.
 * GNU General Public License for more details.
 */
 */


/*
 * Memory entry used for the DEBUG_LL UART configuration, relative to
 * start of RAM. See also uncompress.h and debug-macro.S.
 *
 * Note that using a memory location for storing the UART configuration
 * has at least two limitations:
 *
 * 1. Kernel uncompress code cannot overlap OMAP_UART_INFO as the
 *    uncompress code could then partially overwrite itself
 * 2. We assume printascii is called at least once before paging_init,
 *    and addruart has a chance to read OMAP_UART_INFO
 */
#define OMAP_UART_INFO_OFS	0x3ffc

/* OMAP2 serial ports */
/* OMAP2 serial ports */
#define OMAP2_UART1_BASE	0x4806a000
#define OMAP2_UART1_BASE	0x4806a000
#define OMAP2_UART2_BASE	0x4806c000
#define OMAP2_UART2_BASE	0x4806c000
@@ -68,29 +54,6 @@


#define OMAP24XX_BASE_BAUD	(48000000/16)
#define OMAP24XX_BASE_BAUD	(48000000/16)


/*
 * DEBUG_LL port encoding stored into the UART1 scratchpad register by
 * decomp_setup in uncompress.h
 */
#define OMAP2UART1		21
#define OMAP2UART2		22
#define OMAP2UART3		23
#define OMAP3UART1		OMAP2UART1
#define OMAP3UART2		OMAP2UART2
#define OMAP3UART3		33
#define OMAP3UART4		34		/* Only on 36xx */
#define OMAP4UART1		OMAP2UART1
#define OMAP4UART2		OMAP2UART2
#define OMAP4UART3		43
#define OMAP4UART4		44
#define TI81XXUART1		81
#define TI81XXUART2		82
#define TI81XXUART3		83
#define AM33XXUART1		84
#define OMAP5UART3		OMAP4UART3
#define OMAP5UART4		OMAP4UART4
#define ZOOM_UART		95		/* Only on zoom2/3 */

#ifndef __ASSEMBLER__
#ifndef __ASSEMBLER__


struct omap_board_data;
struct omap_board_data;
+0 −176
Original line number Original line Diff line number Diff line
/*
 * arch/arm/plat-omap/include/mach/uncompress.h
 *
 * Serial port stubs for kernel decompress status messages
 *
 * Initially based on:
 * linux-2.4.15-rmk1-dsplinux1.6/arch/arm/plat-omap/include/mach1510/uncompress.h
 * Copyright (C) 2000 RidgeRun, Inc.
 * Author: Greg Lonnon <glonnon@ridgerun.com>
 *
 * Rewritten by:
 * Author: <source@mvista.com>
 * 2004 (c) MontaVista Software, 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 <asm/memory.h>
#include <asm/mach-types.h>

#include <mach/serial.h>

#define MDR1_MODE_MASK			0x07

volatile u8 *uart_base;
int uart_shift;

/*
 * Store the DEBUG_LL uart number into memory.
 * See also debug-macro.S, and serial.c for related code.
 */
static void set_omap_uart_info(unsigned char port)
{
	/*
	 * Get address of some.bss variable and round it down
	 * a la CONFIG_AUTO_ZRELADDR.
	 */
	u32 ram_start = (u32)&uart_shift & 0xf8000000;
	u32 *uart_info = (u32 *)(ram_start + OMAP_UART_INFO_OFS);
	*uart_info = port;
}

static void putc(int c)
{
	if (!uart_base)
		return;

	/* Check for UART 16x mode */
	if ((uart_base[UART_OMAP_MDR1 << uart_shift] & MDR1_MODE_MASK) != 0)
		return;

	while (!(uart_base[UART_LSR << uart_shift] & UART_LSR_THRE))
		barrier();
	uart_base[UART_TX << uart_shift] = c;
}

static inline void flush(void)
{
}

/*
 * Macros to configure UART1 and debug UART
 */
#define _DEBUG_LL_ENTRY(mach, dbg_uart, dbg_shft, dbg_id)		\
	if (machine_is_##mach()) {					\
		uart_base = (volatile u8 *)(dbg_uart);			\
		uart_shift = (dbg_shft);				\
		port = (dbg_id);					\
		set_omap_uart_info(port);				\
		break;							\
	}

#define DEBUG_LL_OMAP2(p, mach)						\
	_DEBUG_LL_ENTRY(mach, OMAP2_UART##p##_BASE, OMAP_PORT_SHIFT,	\
		OMAP2UART##p)

#define DEBUG_LL_OMAP3(p, mach)						\
	_DEBUG_LL_ENTRY(mach, OMAP3_UART##p##_BASE, OMAP_PORT_SHIFT,	\
		OMAP3UART##p)

#define DEBUG_LL_OMAP4(p, mach)						\
	_DEBUG_LL_ENTRY(mach, OMAP4_UART##p##_BASE, OMAP_PORT_SHIFT,	\
		OMAP4UART##p)

#define DEBUG_LL_OMAP5(p, mach)						\
	_DEBUG_LL_ENTRY(mach, OMAP5_UART##p##_BASE, OMAP_PORT_SHIFT,	\
		OMAP5UART##p)
/* Zoom2/3 shift is different for UART1 and external port */
#define DEBUG_LL_ZOOM(mach)						\
	_DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)

#define DEBUG_LL_TI81XX(p, mach)					\
	_DEBUG_LL_ENTRY(mach, TI81XX_UART##p##_BASE, OMAP_PORT_SHIFT,	\
		TI81XXUART##p)

#define DEBUG_LL_AM33XX(p, mach)					\
	_DEBUG_LL_ENTRY(mach, AM33XX_UART##p##_BASE, OMAP_PORT_SHIFT,	\
		AM33XXUART##p)

static inline void arch_decomp_setup(void)
{
	int port = 0;

	/*
	 * Initialize the port based on the machine ID from the bootloader.
	 * Note that we're using macros here instead of switch statement
	 * as machine_is functions are optimized out for the boards that
	 * are not selected.
	 */
	do {
		/* omap2 based boards using UART1 */
		DEBUG_LL_OMAP2(1, omap_2430sdp);
		DEBUG_LL_OMAP2(1, omap_apollon);
		DEBUG_LL_OMAP2(1, omap_h4);

		/* omap2 based boards using UART3 */
		DEBUG_LL_OMAP2(3, nokia_n800);
		DEBUG_LL_OMAP2(3, nokia_n810);
		DEBUG_LL_OMAP2(3, nokia_n810_wimax);

		/* omap3 based boards using UART1 */
		DEBUG_LL_OMAP2(1, omap3evm);
		DEBUG_LL_OMAP3(1, omap_3430sdp);
		DEBUG_LL_OMAP3(1, omap_3630sdp);
		DEBUG_LL_OMAP3(1, omap3530_lv_som);
		DEBUG_LL_OMAP3(1, omap3_torpedo);

		/* omap3 based boards using UART3 */
		DEBUG_LL_OMAP3(3, cm_t35);
		DEBUG_LL_OMAP3(3, cm_t3517);
		DEBUG_LL_OMAP3(3, cm_t3730);
		DEBUG_LL_OMAP3(3, craneboard);
		DEBUG_LL_OMAP3(3, devkit8000);
		DEBUG_LL_OMAP3(3, igep0020);
		DEBUG_LL_OMAP3(3, igep0030);
		DEBUG_LL_OMAP3(3, nokia_rm680);
		DEBUG_LL_OMAP3(3, nokia_rm696);
		DEBUG_LL_OMAP3(3, nokia_rx51);
		DEBUG_LL_OMAP3(3, omap3517evm);
		DEBUG_LL_OMAP3(3, omap3_beagle);
		DEBUG_LL_OMAP3(3, omap3_pandora);
		DEBUG_LL_OMAP3(3, omap_ldp);
		DEBUG_LL_OMAP3(3, overo);
		DEBUG_LL_OMAP3(3, touchbook);

		/* omap4 based boards using UART3 */
		DEBUG_LL_OMAP4(3, omap_4430sdp);
		DEBUG_LL_OMAP4(3, omap4_panda);

		/* omap5 based boards using UART3 */
		DEBUG_LL_OMAP5(3, omap5_sevm);

		/* zoom2/3 external uart */
		DEBUG_LL_ZOOM(omap_zoom2);
		DEBUG_LL_ZOOM(omap_zoom3);

		/* TI8168 base boards using UART3 */
		DEBUG_LL_TI81XX(3, ti8168evm);

		/* TI8148 base boards using UART1 */
		DEBUG_LL_TI81XX(1, ti8148evm);

		/* AM33XX base boards using UART1 */
		DEBUG_LL_AM33XX(1, am335xevm);
	} while (0);
}

/*
 * nothing to do
 */
#define arch_decomp_wdog()