mirror of
https://github.com/u-boot/u-boot.git
synced 2025-04-17 10:24:49 +00:00
03de305ec4
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Xilinx Versal NET SOC driver
|
|
*
|
|
* Copyright (C) 2022, Advanced Micro Devices, Inc.
|
|
*/
|
|
|
|
#include <dm.h>
|
|
#include <soc.h>
|
|
#include <zynqmp_firmware.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
|
|
#include <linux/bitfield.h>
|
|
|
|
/*
|
|
* v1 -> 0x10 - ES1
|
|
* v2 -> 0x20 - Production
|
|
*/
|
|
static const char versal_family[] = "Versal NET";
|
|
|
|
struct soc_xilinx_versal_net_priv {
|
|
const char *family;
|
|
char revision;
|
|
};
|
|
|
|
static int soc_xilinx_versal_net_get_family(struct udevice *dev, char *buf, int size)
|
|
{
|
|
struct soc_xilinx_versal_net_priv *priv = dev_get_priv(dev);
|
|
|
|
return snprintf(buf, size, "%s", priv->family);
|
|
}
|
|
|
|
static int soc_xilinx_versal_net_get_revision(struct udevice *dev, char *buf, int size)
|
|
{
|
|
struct soc_xilinx_versal_net_priv *priv = dev_get_priv(dev);
|
|
|
|
return snprintf(buf, size, "v%d", priv->revision);
|
|
}
|
|
|
|
static const struct soc_ops soc_xilinx_versal_net_ops = {
|
|
.get_family = soc_xilinx_versal_net_get_family,
|
|
.get_revision = soc_xilinx_versal_net_get_revision,
|
|
};
|
|
|
|
static int soc_xilinx_versal_net_probe(struct udevice *dev)
|
|
{
|
|
struct soc_xilinx_versal_net_priv *priv = dev_get_priv(dev);
|
|
u32 ret_payload[PAYLOAD_ARG_CNT];
|
|
int ret;
|
|
|
|
priv->family = versal_family;
|
|
|
|
if (IS_ENABLED(CONFIG_ZYNQMP_FIRMWARE)) {
|
|
ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0,
|
|
ret_payload);
|
|
if (ret)
|
|
return ret;
|
|
} else {
|
|
ret_payload[2] = readl(PMC_TAP_VERSION);
|
|
if (!ret_payload[2])
|
|
return -EINVAL;
|
|
}
|
|
|
|
priv->revision = FIELD_GET(PS_VERSION_MASK, ret_payload[2]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_DRIVER(soc_xilinx_versal_net) = {
|
|
.name = "soc_xilinx_versal_net",
|
|
.id = UCLASS_SOC,
|
|
.ops = &soc_xilinx_versal_net_ops,
|
|
.probe = soc_xilinx_versal_net_probe,
|
|
.priv_auto = sizeof(struct soc_xilinx_versal_net_priv),
|
|
.flags = DM_FLAG_PRE_RELOC,
|
|
};
|