u-boot/arch/x86/lib/fsp/fsp_common.c
Sean Anderson 0db588caf9 x86: fsp: Only compile fsp_save_s3_stack if (SPL_)DM_RTC is enabled
This function calls rtc_write32, which has a different signature
depending on if (SPL_)DM_RTC is enabled or not. This could result in a
mismatch in SPL if DM_RTC was enabled but SPL_DM_RTC, as the non-DM
declaration would still be used in SPL even though the implementation
would be for non-DM_RTC. We are switching to the correct definitions in
the next commit, so this will become a compilation error. Since
fsp_save_s3_stack is not called from SPL, avoid compiling it if
(SPL_)DM_RTC is disabled.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
2022-12-09 14:10:28 -05:00

88 lines
1.6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <errno.h>
#include <init.h>
#include <log.h>
#include <rtc.h>
#include <acpi/acpi_s3.h>
#include <asm/cmos_layout.h>
#include <asm/early_cmos.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/mrccache.h>
#include <asm/post.h>
#include <asm/processor.h>
#include <asm/fsp/fsp_support.h>
DECLARE_GLOBAL_DATA_PTR;
int checkcpu(void)
{
return 0;
}
int print_cpuinfo(void)
{
post_code(POST_CPU_INFO);
return default_print_cpuinfo();
}
int fsp_init_phase_pci(void)
{
u32 status;
/* call into FspNotify */
debug("Calling into FSP (notify phase INIT_PHASE_PCI): ");
status = fsp_notify(NULL, INIT_PHASE_PCI);
if (status)
debug("fail, error code %x\n", status);
else
debug("OK\n");
return status ? -EPERM : 0;
}
void board_final_init(void)
{
u32 status;
/* call into FspNotify */
debug("Calling into FSP (notify phase INIT_PHASE_BOOT): ");
status = fsp_notify(NULL, INIT_PHASE_BOOT);
if (status)
debug("fail, error code %x\n", status);
else
debug("OK\n");
}
#if CONFIG_IS_ENABLED(DM_RTC)
int fsp_save_s3_stack(void)
{
struct udevice *dev;
int ret;
if (gd->arch.prev_sleep_state == ACPI_S3)
return 0;
ret = uclass_get_device(UCLASS_RTC, 0, &dev);
if (ret) {
debug("Cannot find RTC: err=%d\n", ret);
return -ENODEV;
}
/* Save the stack address to CMOS */
ret = rtc_write32(dev, CMOS_FSP_STACK_ADDR, gd->start_addr_sp);
if (ret) {
debug("Save stack address to CMOS: err=%d\n", ret);
return -EIO;
}
return 0;
}
#endif