From ad8783cb1cb258b71d81800f72cd64eb44081653 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Thu, 8 Sep 2016 07:47:39 +0100 Subject: 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 --- board/imgtec/boston/lowlevel_init.S | 56 +++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 board/imgtec/boston/lowlevel_init.S (limited to 'board/imgtec/boston/lowlevel_init.S') diff --git a/board/imgtec/boston/lowlevel_init.S b/board/imgtec/boston/lowlevel_init.S new file mode 100644 index 0000000000..0c01aa981d --- /dev/null +++ b/board/imgtec/boston/lowlevel_init.S @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2016 Imagination Technologies + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include + +#include +#include +#include +#include + +#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 + + move v0, zero + 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 +1: jr ra + END(lowlevel_display) -- cgit