1 // SPDX-License-Identifier: GPL-2.0
3 * Xilinx Versal NET SOC driver
5 * Copyright (C) 2022, Advanced Micro Devices, Inc.
11 #include <zynqmp_firmware.h>
13 #include <asm/arch/hardware.h>
15 #include <linux/bitfield.h>
19 * v2 -> 0x20 - Production
21 static const char versal_family[] = "Versal NET";
23 struct soc_xilinx_versal_net_priv {
28 static int soc_xilinx_versal_net_get_family(struct udevice *dev, char *buf, int size)
30 struct soc_xilinx_versal_net_priv *priv = dev_get_priv(dev);
32 return snprintf(buf, size, "%s", priv->family);
35 static int soc_xilinx_versal_net_get_revision(struct udevice *dev, char *buf, int size)
37 struct soc_xilinx_versal_net_priv *priv = dev_get_priv(dev);
39 return snprintf(buf, size, "v%d", priv->revision);
42 static const struct soc_ops soc_xilinx_versal_net_ops = {
43 .get_family = soc_xilinx_versal_net_get_family,
44 .get_revision = soc_xilinx_versal_net_get_revision,
47 static int soc_xilinx_versal_net_probe(struct udevice *dev)
49 struct soc_xilinx_versal_net_priv *priv = dev_get_priv(dev);
50 u32 ret_payload[PAYLOAD_ARG_CNT];
53 priv->family = versal_family;
55 if (IS_ENABLED(CONFIG_ZYNQMP_FIRMWARE)) {
56 ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0,
61 ret_payload[2] = readl(PMC_TAP_VERSION);
66 priv->revision = FIELD_GET(PS_VERSION_MASK, ret_payload[2]);
71 U_BOOT_DRIVER(soc_xilinx_versal_net) = {
72 .name = "soc_xilinx_versal_net",
74 .ops = &soc_xilinx_versal_net_ops,
75 .probe = soc_xilinx_versal_net_probe,
76 .priv_auto = sizeof(struct soc_xilinx_versal_net_priv),
77 .flags = DM_FLAG_PRE_RELOC,