u-boot/board/imgtec/boston/lowlevel_init.S

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2016 Imagination Technologies
 */

#include <config.h>

#include <asm/addrspace.h>
#include <asm/asm.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>

#include "boston-regs.h"

.data

msg_ddr_cal:	.ascii "DDR Cal "
msg_ddr_ok:	.ascii "DDR OK  "

.text

LEAF(lowlevel_init)
	move	s0, ra

	PTR_LA	a0, msg_ddr_cal
	bal	lowlevel_display

	PTR_LI	t0, BOSTON_PLAT_DDR3STAT
1:	lw	t1, 0(t0)
	andi	t1, t1, BOSTON_PLAT_DDR3STAT_CALIB
	beqz	t1, 1b

	PTR_LA	a0, msg_ddr_ok
	bal	lowlevel_display

	jr	s0
	END(lowlevel_init)

LEAF(lowlevel_display)
	.set	push
	.set	noat
	PTR_LI	AT, BOSTON_LCD_BASE
#ifdef CONFIG_64BIT
	ld	k1, 0(a0)
	sd	k1, 0(AT)
#else
	lw	k1, 0(a0)
	sw	k1, 0(AT)
	lw	k1, 4(a0)
	sw	k1, 4(AT)
#endif
	.set	pop
	jr	ra
	END(lowlevel_display)
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 21:58:06 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
boston: Introduce support for the MIPS Boston development board This patch introduces support for building U-Boot to run on the MIPS Boston development board. This is a board built around an FPGA & an Intel EG20T Platform Controller Hub, used largely as part of the development of new CPUs and their software support. It is essentially the successor to the older MIPS Malta board. Signed-off-by: Paul Burton <paul.burton@imgtec.com> 2016-09-08 06:47:39 +00:00			`/*`
			`* Copyright (C) 2016 Imagination Technologies`
			`*/`

			`#include <config.h>`

			`#include <asm/addrspace.h>`
			`#include <asm/asm.h>`
			`#include <asm/mipsregs.h>`
			`#include <asm/regdef.h>`

			`#include "boston-regs.h"`

			`.data`

			`msg_ddr_cal: .ascii "DDR Cal "`
			`msg_ddr_ok: .ascii "DDR OK "`

			`.text`

			`LEAF(lowlevel_init)`
			`move s0, ra`

			`PTR_LA a0, msg_ddr_cal`
			`bal lowlevel_display`

			`PTR_LI t0, BOSTON_PLAT_DDR3STAT`
			`1: lw t1, 0(t0)`
			`andi t1, t1, BOSTON_PLAT_DDR3STAT_CALIB`
			`beqz t1, 1b`

			`PTR_LA a0, msg_ddr_ok`
			`bal lowlevel_display`

			`jr s0`
			`END(lowlevel_init)`

			`LEAF(lowlevel_display)`
			`.set push`
			`.set noat`
			`PTR_LI AT, BOSTON_LCD_BASE`
			`#ifdef CONFIG_64BIT`
			`ld k1, 0(a0)`
			`sd k1, 0(AT)`
			`#else`
			`lw k1, 0(a0)`
			`sw k1, 0(AT)`
			`lw k1, 4(a0)`
			`sw k1, 4(AT)`
			`#endif`
			`.set pop`
boston: Remove unused label in lowlevel_display The lowlevel_display() function includes a "1:" label which is never used. Remove it. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2017-09-15 18:34:31 +00:00			`jr ra`
boston: Introduce support for the MIPS Boston development board This patch introduces support for building U-Boot to run on the MIPS Boston development board. This is a board built around an FPGA & an Intel EG20T Platform Controller Hub, used largely as part of the development of new CPUs and their software support. It is essentially the successor to the older MIPS Malta board. Signed-off-by: Paul Burton <paul.burton@imgtec.com> 2016-09-08 06:47:39 +00:00			`END(lowlevel_display)`