upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.5 KiB
63 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2010
|
|
* Heiko Schocher, DENX Software Engineering, hs@denx.de.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
const ulong patterns[] = { 0x00000000,
|
|
0xFFFFFFFF,
|
|
0xFF00FF00,
|
|
0x0F0F0F0F,
|
|
0xF0F0F0F0};
|
|
const ulong NBR_OF_PATTERNS = sizeof(patterns) / sizeof(*patterns);
|
|
const ulong OFFS_PATTERN = 3;
|
|
const ulong REPEAT_PATTERN = 1000;
|
|
|
|
void bootcount_store(ulong a)
|
|
{
|
|
ulong *save_addr;
|
|
ulong size = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
|
|
size += gd->bd->bi_dram[i].size;
|
|
save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
|
|
writel(a, save_addr);
|
|
writel(CONFIG_SYS_BOOTCOUNT_MAGIC, &save_addr[1]);
|
|
|
|
for (i = 0; i < REPEAT_PATTERN; i++)
|
|
writel(patterns[i % NBR_OF_PATTERNS],
|
|
&save_addr[i + OFFS_PATTERN]);
|
|
|
|
/* Make sure the data is written to RAM */
|
|
flush_dcache_range((ulong)&save_addr[0],
|
|
(((ulong)&save_addr[REPEAT_PATTERN + OFFS_PATTERN] &
|
|
~(ARCH_DMA_MINALIGN - 1)) + ARCH_DMA_MINALIGN));
|
|
}
|
|
|
|
ulong bootcount_load(void)
|
|
{
|
|
ulong *save_addr;
|
|
ulong size = 0;
|
|
ulong counter = 0;
|
|
int i, tmp;
|
|
|
|
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
|
|
size += gd->bd->bi_dram[i].size;
|
|
save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
|
|
|
|
counter = readl(&save_addr[0]);
|
|
|
|
/* Is the counter reliable, check in the big pattern for bit errors */
|
|
for (i = 0; (i < REPEAT_PATTERN) && (counter != 0); i++) {
|
|
tmp = readl(&save_addr[i + OFFS_PATTERN]);
|
|
if (tmp != patterns[i % NBR_OF_PATTERNS])
|
|
counter = 0;
|
|
}
|
|
return counter;
|
|
}
|
|
|