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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * phy_uniphier_pcie.c - Socionext UniPhier PCIe PHY driver
- * Copyright 2019-2021 Socionext, Inc.
- */
- #include <common.h>
- #include <dm.h>
- #include <generic-phy.h>
- #include <linux/bitops.h>
- #include <linux/compat.h>
- #include <regmap.h>
- #include <syscon.h>
- /* SG */
- #define SG_USBPCIESEL 0x590
- #define SG_USBPCIESEL_PCIE BIT(0)
- struct uniphier_pciephy_priv {
- int dummy;
- };
- static int uniphier_pciephy_init(struct phy *phy)
- {
- return 0;
- }
- static int uniphier_pciephy_probe(struct udevice *dev)
- {
- struct regmap *regmap;
- regmap = syscon_regmap_lookup_by_phandle(dev,
- "socionext,syscon");
- if (!IS_ERR(regmap))
- regmap_update_bits(regmap, SG_USBPCIESEL,
- SG_USBPCIESEL_PCIE, SG_USBPCIESEL_PCIE);
- return 0;
- }
- static struct phy_ops uniphier_pciephy_ops = {
- .init = uniphier_pciephy_init,
- };
- static const struct udevice_id uniphier_pciephy_ids[] = {
- { .compatible = "socionext,uniphier-pro5-pcie-phy" },
- { .compatible = "socionext,uniphier-ld20-pcie-phy" },
- { .compatible = "socionext,uniphier-pxs3-pcie-phy" },
- { }
- };
- U_BOOT_DRIVER(uniphier_pcie_phy) = {
- .name = "uniphier-pcie-phy",
- .id = UCLASS_PHY,
- .of_match = uniphier_pciephy_ids,
- .ops = &uniphier_pciephy_ops,
- .probe = uniphier_pciephy_probe,
- .priv_auto = sizeof(struct uniphier_pciephy_priv),
- };
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