mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-27 15:10:26 +09:00
1327d1678b
zynqmp-power driver for ZynqMP to handle the communication with the PMU firmware. Firmware driver just probes subnodes and power driver handles communication with PMU using the IPI mailbox driver. Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Xilinx Zynq MPSoC Firmware driver
|
|
*
|
|
* Copyright (C) 2018-2019 Xilinx, Inc.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
|
|
#if defined(CONFIG_ZYNQMP_IPI)
|
|
#include <mailbox.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
|
|
struct zynqmp_power {
|
|
struct mbox_chan tx_chan;
|
|
struct mbox_chan rx_chan;
|
|
} zynqmp_power;
|
|
|
|
static int zynqmp_power_probe(struct udevice *dev)
|
|
{
|
|
int ret = 0;
|
|
|
|
debug("%s, (dev=%p)\n", __func__, dev);
|
|
|
|
ret = mbox_get_by_name(dev, "tx", &zynqmp_power.tx_chan);
|
|
if (ret) {
|
|
debug("%s, cannot tx mailbox\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
ret = mbox_get_by_name(dev, "rx", &zynqmp_power.rx_chan);
|
|
if (ret)
|
|
debug("%s, cannot rx mailbox\n", __func__);
|
|
|
|
return ret;
|
|
};
|
|
|
|
static const struct udevice_id zynqmp_power_ids[] = {
|
|
{ .compatible = "xlnx,zynqmp-power" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(zynqmp_power) = {
|
|
.name = "zynqmp_power",
|
|
.id = UCLASS_FIRMWARE,
|
|
.of_match = zynqmp_power_ids,
|
|
.probe = zynqmp_power_probe,
|
|
};
|
|
#endif
|
|
|
|
static const struct udevice_id zynqmp_firmware_ids[] = {
|
|
{ .compatible = "xlnx,zynqmp-firmware" },
|
|
{ .compatible = "xlnx,versal-firmware"},
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(zynqmp_firmware) = {
|
|
.id = UCLASS_FIRMWARE,
|
|
.name = "zynqmp-firmware",
|
|
.probe = dm_scan_fdt_dev,
|
|
.of_match = zynqmp_firmware_ids,
|
|
};
|