82 static void fu740_pcie_assert_reset(struct fu740_pcie *afp)  in fu740_pcie_assert_reset()  argument
85 	gpiod_set_value_cansleep(afp->reset, 0);  in fu740_pcie_assert_reset()
87 	writel_relaxed(0x0, afp->mgmt_base + PCIEX8MGMT_PERST_N);  in fu740_pcie_assert_reset()
90 static void fu740_pcie_deassert_reset(struct fu740_pcie *afp)  in fu740_pcie_deassert_reset()  argument
93 	writel_relaxed(0x1, afp->mgmt_base + PCIEX8MGMT_PERST_N);  in fu740_pcie_deassert_reset()
95 	gpiod_set_value_cansleep(afp->reset, 1);  in fu740_pcie_deassert_reset()
98 static void fu740_pcie_power_on(struct fu740_pcie *afp)  in fu740_pcie_power_on()  argument
100 	gpiod_set_value_cansleep(afp->pwren, 1);  in fu740_pcie_power_on()
109 static void fu740_pcie_drive_reset(struct fu740_pcie *afp)  in fu740_pcie_drive_reset()  argument
111 	fu740_pcie_assert_reset(afp);  in fu740_pcie_drive_reset()
112 	fu740_pcie_power_on(afp);  in fu740_pcie_drive_reset()
113 	fu740_pcie_deassert_reset(afp);  in fu740_pcie_drive_reset()
117 			      const uint16_t wrdata, struct fu740_pcie *afp)  in fu740_phyregwrite()  argument
119 	struct device *dev = afp->pci.dev;  in fu740_phyregwrite()
128 		phy_cr_para_addr = afp->mgmt_base + PCIEX8MGMT_PHY1_CR_PARA_ADDR;  in fu740_phyregwrite()
129 		phy_cr_para_wr_data = afp->mgmt_base + PCIEX8MGMT_PHY1_CR_PARA_WR_DATA;  in fu740_phyregwrite()
130 		phy_cr_para_wr_en = afp->mgmt_base + PCIEX8MGMT_PHY1_CR_PARA_WR_EN;  in fu740_phyregwrite()
131 		phy_cr_para_ack = afp->mgmt_base + PCIEX8MGMT_PHY1_CR_PARA_ACK;  in fu740_phyregwrite()
133 		phy_cr_para_addr = afp->mgmt_base + PCIEX8MGMT_PHY0_CR_PARA_ADDR;  in fu740_phyregwrite()
134 		phy_cr_para_wr_data = afp->mgmt_base + PCIEX8MGMT_PHY0_CR_PARA_WR_DATA;  in fu740_phyregwrite()
135 		phy_cr_para_wr_en = afp->mgmt_base + PCIEX8MGMT_PHY0_CR_PARA_WR_EN;  in fu740_phyregwrite()
136 		phy_cr_para_ack = afp->mgmt_base + PCIEX8MGMT_PHY0_CR_PARA_ACK;  in fu740_phyregwrite()
157 static void fu740_pcie_init_phy(struct fu740_pcie *afp)  in fu740_pcie_init_phy()  argument
160 	writel_relaxed(0x1, afp->mgmt_base + PCIEX8MGMT_PHY0_CR_PARA_SEL);  in fu740_pcie_init_phy()
161 	writel_relaxed(0x1, afp->mgmt_base + PCIEX8MGMT_PHY1_CR_PARA_SEL);  in fu740_pcie_init_phy()
170 	fu740_phyregwrite(0, PCIEX8MGMT_PHY_LANE0_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
171 	fu740_phyregwrite(0, PCIEX8MGMT_PHY_LANE1_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
172 	fu740_phyregwrite(0, PCIEX8MGMT_PHY_LANE2_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
173 	fu740_phyregwrite(0, PCIEX8MGMT_PHY_LANE3_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
174 	fu740_phyregwrite(1, PCIEX8MGMT_PHY_LANE0_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
175 	fu740_phyregwrite(1, PCIEX8MGMT_PHY_LANE1_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
176 	fu740_phyregwrite(1, PCIEX8MGMT_PHY_LANE2_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
177 	fu740_phyregwrite(1, PCIEX8MGMT_PHY_LANE3_BASE, PCIEX8MGMT_PHY_INIT_VAL, afp);  in fu740_pcie_init_phy()
183 	struct fu740_pcie *afp = dev_get_drvdata(dev);  in fu740_pcie_start_link()  local
205 	writel_relaxed(0x1, afp->mgmt_base + PCIEX8MGMT_APP_LTSSM_ENABLE);  in fu740_pcie_start_link()
242 	struct fu740_pcie *afp = to_fu740_pcie(pci);  in fu740_pcie_host_init()  local
247 	fu740_pcie_drive_reset(afp);  in fu740_pcie_host_init()
250 	ret = clk_prepare_enable(afp->pcie_aux);  in fu740_pcie_host_init()
260 	writel_relaxed(0x1, afp->mgmt_base + PCIEX8MGMT_APP_HOLD_PHY_RST);  in fu740_pcie_host_init()
263 	ret = reset_control_deassert(afp->rst);  in fu740_pcie_host_init()
269 	fu740_pcie_init_phy(afp);  in fu740_pcie_host_init()
272 	clk_disable_unprepare(afp->pcie_aux);  in fu740_pcie_host_init()
274 	writel_relaxed(0x0, afp->mgmt_base + PCIEX8MGMT_APP_HOLD_PHY_RST);  in fu740_pcie_host_init()
276 	clk_prepare_enable(afp->pcie_aux);  in fu740_pcie_host_init()
278 	writel_relaxed(0x4, afp->mgmt_base + PCIEX8MGMT_DEVICE_TYPE);  in fu740_pcie_host_init()
295 	struct fu740_pcie *afp;  in fu740_pcie_probe()  local
297 	afp = devm_kzalloc(dev, sizeof(*afp), GFP_KERNEL);  in fu740_pcie_probe()
298 	if (!afp)  in fu740_pcie_probe()
300 	pci = &afp->pci;  in fu740_pcie_probe()
306 	afp->mgmt_base = devm_platform_ioremap_resource_byname(pdev, "mgmt");  in fu740_pcie_probe()
307 	if (IS_ERR(afp->mgmt_base))  in fu740_pcie_probe()
308 		return PTR_ERR(afp->mgmt_base);  in fu740_pcie_probe()
311 	afp->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);  in fu740_pcie_probe()
312 	if (IS_ERR(afp->reset))  in fu740_pcie_probe()
313 		return dev_err_probe(dev, PTR_ERR(afp->reset), "unable to get reset-gpios\n");  in fu740_pcie_probe()
315 	afp->pwren = devm_gpiod_get_optional(dev, "pwren", GPIOD_OUT_LOW);  in fu740_pcie_probe()
316 	if (IS_ERR(afp->pwren))  in fu740_pcie_probe()
317 		return dev_err_probe(dev, PTR_ERR(afp->pwren), "unable to get pwren-gpios\n");  in fu740_pcie_probe()
320 	afp->pcie_aux = devm_clk_get(dev, "pcie_aux");  in fu740_pcie_probe()
321 	if (IS_ERR(afp->pcie_aux))  in fu740_pcie_probe()
322 		return dev_err_probe(dev, PTR_ERR(afp->pcie_aux),  in fu740_pcie_probe()
326 	afp->rst = devm_reset_control_get_exclusive(dev, NULL);  in fu740_pcie_probe()
327 	if (IS_ERR(afp->rst))  in fu740_pcie_probe()
328 		return dev_err_probe(dev, PTR_ERR(afp->rst), "unable to get reset\n");  in fu740_pcie_probe()
330 	platform_set_drvdata(pdev, afp);  in fu740_pcie_probe()
337 	struct fu740_pcie *afp = platform_get_drvdata(pdev);  in fu740_pcie_shutdown()  local
340 	fu740_pcie_assert_reset(afp);  in fu740_pcie_shutdown()