7c55249307
Enable the clocks during syscon probe when they are present in device tree. This patch avoids a freeze when the SYSCFG clock is not enabled by TF-A / OP-TEE. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
37 lines
733 B
C
37 lines
733 B
C
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
|
|
/*
|
|
* Copyright (C) 2018, STMicroelectronics - All Rights Reserved
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <clk.h>
|
|
#include <dm.h>
|
|
#include <syscon.h>
|
|
#include <asm/arch/stm32.h>
|
|
|
|
static const struct udevice_id stm32mp_syscon_ids[] = {
|
|
{ .compatible = "st,stm32mp157-syscfg",
|
|
.data = STM32MP_SYSCON_SYSCFG },
|
|
{ }
|
|
};
|
|
|
|
static int stm32mp_syscon_probe(struct udevice *dev)
|
|
{
|
|
struct clk_bulk clk_bulk;
|
|
int ret;
|
|
|
|
ret = clk_get_bulk(dev, &clk_bulk);
|
|
if (!ret)
|
|
clk_enable_bulk(&clk_bulk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_DRIVER(syscon_stm32mp) = {
|
|
.name = "stmp32mp_syscon",
|
|
.id = UCLASS_SYSCON,
|
|
.of_match = stm32mp_syscon_ids,
|
|
.bind = dm_scan_fdt_dev,
|
|
.probe = stm32mp_syscon_probe,
|
|
};
|