| /* 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) |
