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.
88 lines
1.6 KiB
88 lines
1.6 KiB
/*
|
|
* Copyright 2014 Freescale Semiconductor, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/immap_85xx.h>
|
|
#include "sleep.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
void __weak board_mem_sleep_setup(void)
|
|
{
|
|
}
|
|
|
|
void __weak board_sleep_prepare(void)
|
|
{
|
|
}
|
|
|
|
bool is_warm_boot(void)
|
|
{
|
|
struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
|
|
|
|
if (in_be32(&gur->scrtsr[0]) & DCFG_CCSR_CRSTSR_WDRFR)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void fsl_dp_disable_console(void)
|
|
{
|
|
gd->flags |= GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE;
|
|
}
|
|
|
|
/*
|
|
* When wakeup from deep sleep, the first 128 bytes space
|
|
* will be used to do DDR training which corrupts the data
|
|
* in there. This function will restore them.
|
|
*/
|
|
static void dp_ddr_restore(void)
|
|
{
|
|
volatile u64 *src, *dst;
|
|
int i;
|
|
struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_MPC85xx_SCFG;
|
|
|
|
/* get the address of ddr date from SPARECR3 */
|
|
src = (u64 *)in_be32(&scfg->sparecr[2]);
|
|
dst = (u64 *)CONFIG_SYS_SDRAM_BASE;
|
|
|
|
for (i = 0; i < DDR_BUFF_LEN / 8; i++)
|
|
*dst++ = *src++;
|
|
|
|
flush_dcache();
|
|
}
|
|
|
|
static void dp_resume_prepare(void)
|
|
{
|
|
dp_ddr_restore();
|
|
|
|
board_sleep_prepare();
|
|
|
|
l2cache_init();
|
|
#if defined(CONFIG_RAMBOOT_PBL)
|
|
disable_cpc_sram();
|
|
#endif
|
|
enable_cpc();
|
|
}
|
|
|
|
int fsl_dp_resume(void)
|
|
{
|
|
u32 start_addr;
|
|
void (*kernel_resume)(void);
|
|
struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_MPC85xx_SCFG;
|
|
|
|
if (!is_warm_boot())
|
|
return 0;
|
|
|
|
dp_resume_prepare();
|
|
|
|
/* Get the entry address and jump to kernel */
|
|
start_addr = in_be32(&scfg->sparecr[1]);
|
|
debug("Entry address is 0x%08x\n", start_addr);
|
|
kernel_resume = (void (*)(void))start_addr;
|
|
kernel_resume();
|
|
|
|
return 0;
|
|
}
|
|
|