projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| ad8783cb PB |
2 | /* |
| 3 | * Copyright (C) 2016 Imagination Technologies | |
| ad8783cb PB |
4 | */ |
| 5 | ||
| 6 | #include <config.h> | |
| 7 | ||
| 8 | #include <asm/addrspace.h> | |
| 9 | #include <asm/asm.h> | |
| 10 | #include <asm/mipsregs.h> | |
| 11 | #include <asm/regdef.h> | |
| 12 | ||
| 13 | #include "boston-regs.h" | |
| 14 | ||
| 15 | .data | |
| 16 | ||
| 17 | msg_ddr_cal: .ascii "DDR Cal " | |
| 18 | msg_ddr_ok: .ascii "DDR OK " | |
| 19 | ||
| 20 | .text | |
| 21 | ||
| 22 | LEAF(lowlevel_init) | |
| 23 | move s0, ra | |
| 24 | ||
| 25 | PTR_LA a0, msg_ddr_cal | |
| 26 | bal lowlevel_display | |
| 27 | ||
| 28 | PTR_LI t0, BOSTON_PLAT_DDR3STAT | |
| 29 | 1: lw t1, 0(t0) | |
| 30 | andi t1, t1, BOSTON_PLAT_DDR3STAT_CALIB | |
| 31 | beqz t1, 1b | |
| 32 | ||
| 33 | PTR_LA a0, msg_ddr_ok | |
| 34 | bal lowlevel_display | |
| 35 | ||
| ad8783cb PB |
36 | jr s0 |
| 37 | END(lowlevel_init) | |
| 38 | ||
| 39 | LEAF(lowlevel_display) | |
| 40 | .set push | |
| 41 | .set noat | |
| 42 | PTR_LI AT, BOSTON_LCD_BASE | |
| 43 | #ifdef CONFIG_64BIT | |
| 44 | ld k1, 0(a0) | |
| 45 | sd k1, 0(AT) | |
| 46 | #else | |
| 47 | lw k1, 0(a0) | |
| 48 | sw k1, 0(AT) | |
| 49 | lw k1, 4(a0) | |
| 50 | sw k1, 4(AT) | |
| 51 | #endif | |
| 52 | .set pop | |
| 64f733d3 | 53 | jr ra |
| ad8783cb | 54 | END(lowlevel_display) |