123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * Xilinx ZynqMP SOC driver
- *
- * Copyright (C) 2021 Xilinx, Inc.
- */
- #include <common.h>
- #include <dm.h>
- #include <asm/cache.h>
- #include <soc.h>
- #include <zynqmp_firmware.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/arch/hardware.h>
- /*
- * Zynqmp has 4 silicon revisions
- * v0 -> 0(XCZU9EG-ES1)
- * v1 -> 1(XCZU3EG-ES1, XCZU15EG-ES1)
- * v2 -> 2(XCZU7EV-ES1, XCZU9EG-ES2, XCZU19EG-ES1)
- * v3 -> 3(Production Level)
- */
- static const char zynqmp_family[] = "ZynqMP";
- struct soc_xilinx_zynqmp_priv {
- const char *family;
- char revision;
- };
- static int soc_xilinx_zynqmp_get_family(struct udevice *dev, char *buf, int size)
- {
- struct soc_xilinx_zynqmp_priv *priv = dev_get_priv(dev);
- return snprintf(buf, size, "%s", priv->family);
- }
- static int soc_xilinx_zynqmp_get_revision(struct udevice *dev, char *buf, int size)
- {
- struct soc_xilinx_zynqmp_priv *priv = dev_get_priv(dev);
- return snprintf(buf, size, "v%d", priv->revision);
- }
- static const struct soc_ops soc_xilinx_zynqmp_ops = {
- .get_family = soc_xilinx_zynqmp_get_family,
- .get_revision = soc_xilinx_zynqmp_get_revision,
- };
- static int soc_xilinx_zynqmp_probe(struct udevice *dev)
- {
- struct soc_xilinx_zynqmp_priv *priv = dev_get_priv(dev);
- u32 ret_payload[4];
- int ret;
- priv->family = zynqmp_family;
- if (IS_ENABLED(CONFIG_SPL_BUILD) || current_el() == 3 ||
- !IS_ENABLED(CONFIG_ZYNQMP_FIRMWARE))
- ret = zynqmp_mmio_read(ZYNQMP_PS_VERSION, &ret_payload[2]);
- else
- ret = xilinx_pm_request(PM_GET_CHIPID, 0, 0, 0, 0,
- ret_payload);
- if (ret < 0)
- return ret;
- priv->revision = ret_payload[2] & ZYNQMP_PS_VER_MASK;
- return 0;
- }
- U_BOOT_DRIVER(soc_xilinx_zynqmp) = {
- .name = "soc_xilinx_zynqmp",
- .id = UCLASS_SOC,
- .ops = &soc_xilinx_zynqmp_ops,
- .probe = soc_xilinx_zynqmp_probe,
- .priv_auto = sizeof(struct soc_xilinx_zynqmp_priv),
- .flags = DM_FLAG_PRE_RELOC,
- };
|