usb/mtu3/mtu3_host.c

68 static void ssusb_wakeup_ip_sleep_set(struct ssusb_mtk *ssusb, bool enable)
72 	switch (ssusb->uwk_vers) {
74 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL1;
79 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;
84 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0;
89 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL1_8195;
94 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;
99 		reg = ssusb->uwk_reg_base + PERI_WK_CTRL0_8195;
104 		reg = ssusb->uwk_reg_base + PERI_SSUSB_SPM_CTRL;
111 	regmap_update_bits(ssusb->uwk, reg, msk, val);
114 int ssusb_wakeup_of_property_parse(struct ssusb_mtk *ssusb,
121 	ssusb->uwk_en = of_property_read_bool(dn, "wakeup-source");
122 	if (!ssusb->uwk_en)
130 	ssusb->uwk_reg_base = args.args[0];
131 	ssusb->uwk_vers = args.args[1];
132 	ssusb->uwk = syscon_node_to_regmap(args.np);
134 	dev_info(ssusb->dev, "uwk - reg:0x%x, version:%d\n",
135 			ssusb->uwk_reg_base, ssusb->uwk_vers);
137 	return PTR_ERR_OR_ZERO(ssusb->uwk);
140 void ssusb_wakeup_set(struct ssusb_mtk *ssusb, bool enable)
142 	if (ssusb->uwk_en)
143 		ssusb_wakeup_ip_sleep_set(ssusb, enable);
146 static void host_ports_num_get(struct ssusb_mtk *ssusb)
150 	xhci_cap = mtu3_readl(ssusb->ippc_base, U3D_SSUSB_IP_XHCI_CAP);
151 	ssusb->u2_ports = SSUSB_IP_XHCI_U2_PORT_NUM(xhci_cap);
152 	ssusb->u3_ports = SSUSB_IP_XHCI_U3_PORT_NUM(xhci_cap);
154 	dev_dbg(ssusb->dev, "host - u2_ports:%d, u3_ports:%d\n",
155 		 ssusb->u2_ports, ssusb->u3_ports);
159 static int ssusb_host_enable(struct ssusb_mtk *ssusb)
161 	void __iomem *ibase = ssusb->ippc_base;
162 	int num_u3p = ssusb->u3_ports;
163 	int num_u2p = ssusb->u2_ports;
175 		if ((0x1 << i) & ssusb->u3p_dis_msk) {
188 		if ((0x1 << i) & ssusb->u2p_dis_msk)
201 	return ssusb_check_clocks(ssusb, check_clk);
204 static int ssusb_host_disable(struct ssusb_mtk *ssusb)
206 	void __iomem *ibase = ssusb->ippc_base;
207 	int num_u3p = ssusb->u3_ports;
208 	int num_u2p = ssusb->u2_ports;
214 		if ((0x1 << i) & ssusb->u3p_dis_msk)
224 		if ((0x1 << i) & ssusb->u2p_dis_msk)
238 int ssusb_host_resume(struct ssusb_mtk *ssusb, bool p0_skipped)
240 	void __iomem *ibase = ssusb->ippc_base;
241 	int u3p_skip_msk = ssusb->u3p_dis_msk;
242 	int u2p_skip_msk = ssusb->u2p_dis_msk;
243 	int num_u3p = ssusb->u3_ports;
244 	int num_u2p = ssusb->u2_ports;
250 		if (ssusb->otg_switch.is_u3_drd)
281 int ssusb_host_suspend(struct ssusb_mtk *ssusb)
283 	void __iomem *ibase = ssusb->ippc_base;
284 	int num_u3p = ssusb->u3_ports;
285 	int num_u2p = ssusb->u2_ports;
291 		if ((0x1 << i) & ssusb->u3p_dis_msk)
301 		if ((0x1 << i) & ssusb->u2p_dis_msk)
315 static void ssusb_host_setup(struct ssusb_mtk *ssusb)
317 	host_ports_num_get(ssusb);
323 	ssusb_host_enable(ssusb);
324 	ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST);
327 	ssusb_set_vbus(&ssusb->otg_switch, 1);
330 static void ssusb_host_cleanup(struct ssusb_mtk *ssusb)
332 	if (ssusb->is_host)
333 		ssusb_set_vbus(&ssusb->otg_switch, 0);
335 	ssusb_host_disable(ssusb);
344 int ssusb_host_init(struct ssusb_mtk *ssusb, struct device_node *parent_dn)
346 	struct device *parent_dev = ssusb->dev;
349 	ssusb_host_setup(ssusb);
363 void ssusb_host_exit(struct ssusb_mtk *ssusb)
365 	of_platform_depopulate(ssusb->dev);
366 	ssusb_host_cleanup(ssusb);