Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Setup platform devices needed by the Freescale multi-port host
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * and/or dual-role USB controller modules based on the description
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * in flat device tree.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/fsl_devices.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) struct fsl_usb2_dev_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	char *dr_mode;		/* controller mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	char *drivers[3];	/* drivers to instantiate for this mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	enum fsl_usb2_operating_modes op_mode;	/* operating mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) static struct fsl_usb2_dev_data dr_mode_data[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 		.dr_mode = "host",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		.drivers = { "fsl-ehci", NULL, NULL, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 		.op_mode = FSL_USB2_DR_HOST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		.dr_mode = "otg",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 		.drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		.op_mode = FSL_USB2_DR_OTG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		.dr_mode = "peripheral",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		.drivers = { "fsl-usb2-udc", NULL, NULL, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 		.op_mode = FSL_USB2_DR_DEVICE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	const unsigned char *prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	prop = of_get_property(np, "dr_mode", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	if (prop) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		for (i = 0; i < ARRAY_SIZE(dr_mode_data); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 			if (!strcmp(prop, dr_mode_data[i].dr_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 				return &dr_mode_data[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	pr_warn("%pOF: Invalid 'dr_mode' property, fallback to host mode\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	return &dr_mode_data[0]; /* mode not specified, use host */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	if (!phy_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		return FSL_USB2_PHY_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	if (!strcasecmp(phy_type, "ulpi"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		return FSL_USB2_PHY_ULPI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (!strcasecmp(phy_type, "utmi"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		return FSL_USB2_PHY_UTMI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	if (!strcasecmp(phy_type, "utmi_wide"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		return FSL_USB2_PHY_UTMI_WIDE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	if (!strcasecmp(phy_type, "utmi_dual"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		return FSL_USB2_PHY_UTMI_DUAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	if (!strcasecmp(phy_type, "serial"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		return FSL_USB2_PHY_SERIAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	return FSL_USB2_PHY_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) static struct platform_device *fsl_usb2_device_register(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 					struct platform_device *ofdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 					struct fsl_usb2_platform_data *pdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 					const char *name, int id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	struct platform_device *pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	const struct resource *res = ofdev->resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	unsigned int num = ofdev->num_resources;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	pdev = platform_device_alloc(name, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	if (!pdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		retval = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	pdev->dev.parent = &ofdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	if (!pdev->dev.dma_mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 			goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	if (num) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		retval = platform_device_add_resources(pdev, res, num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	retval = platform_device_add(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	return pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	platform_device_put(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	return ERR_PTR(retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static const struct of_device_id fsl_usb2_mph_dr_of_match[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static enum fsl_usb2_controller_ver usb_get_ver_info(struct device_node *np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	enum fsl_usb2_controller_ver ver = FSL_USB_VER_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	 * returns 1 for usb controller version 1.6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	 * returns 2 for usb controller version 2.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	 * returns 3 for usb controller version 2.4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	 * returns 4 for usb controller version 2.5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	 * returns 0 otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (of_device_is_compatible(np, "fsl-usb2-dr")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		if (of_device_is_compatible(np, "fsl-usb2-dr-v1.6"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 			ver = FSL_USB_VER_1_6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 			ver = FSL_USB_VER_2_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			ver = FSL_USB_VER_2_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			ver = FSL_USB_VER_2_5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		else /* for previous controller versions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 			ver = FSL_USB_VER_OLD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		if (ver > FSL_USB_VER_NONE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			return ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	if (of_device_is_compatible(np, "fsl,mpc5121-usb2-dr"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		return FSL_USB_VER_OLD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	if (of_device_is_compatible(np, "fsl-usb2-mph")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 			ver = FSL_USB_VER_1_6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			ver = FSL_USB_VER_2_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			ver = FSL_USB_VER_2_4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 			ver = FSL_USB_VER_2_5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		else /* for previous controller versions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			ver = FSL_USB_VER_OLD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	return ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static int fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	struct device_node *np = ofdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	struct platform_device *usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	struct fsl_usb2_platform_data data, *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	struct fsl_usb2_dev_data *dev_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	const struct of_device_id *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	const unsigned char *prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	static unsigned int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	if (!of_device_is_available(np))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	match = of_match_device(fsl_usb2_mph_dr_of_match, &ofdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	if (!match)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	pdata = &data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	if (match->data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		memcpy(pdata, match->data, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		memset(pdata, 0, sizeof(data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	dev_data = get_dr_mode_data(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	if (of_device_is_compatible(np, "fsl-usb2-mph")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		if (of_get_property(np, "port0", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 			pdata->port_enables |= FSL_USB2_PORT0_ENABLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		if (of_get_property(np, "port1", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 			pdata->port_enables |= FSL_USB2_PORT1_ENABLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		pdata->operating_mode = FSL_USB2_MPH_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		if (of_get_property(np, "fsl,invert-drvvbus", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			pdata->invert_drvvbus = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		if (of_get_property(np, "fsl,invert-pwr-fault", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 			pdata->invert_pwr_fault = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		/* setup mode selected in the device tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		pdata->operating_mode = dev_data->op_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	prop = of_get_property(np, "phy_type", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	pdata->phy_mode = determine_usb_phy(prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	pdata->controller_ver = usb_get_ver_info(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	/* Activate Erratum by reading property in device tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	pdata->has_fsl_erratum_a007792 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		of_property_read_bool(np, "fsl,usb-erratum-a007792");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	pdata->has_fsl_erratum_a005275 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		of_property_read_bool(np, "fsl,usb-erratum-a005275");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	pdata->has_fsl_erratum_a005697 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		of_property_read_bool(np, "fsl,usb_erratum-a005697");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	pdata->has_fsl_erratum_a006918 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		of_property_read_bool(np, "fsl,usb_erratum-a006918");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	pdata->has_fsl_erratum_14 =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		of_property_read_bool(np, "fsl,usb_erratum-14");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	 * Determine whether phy_clk_valid needs to be checked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	 * by reading property in device tree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	pdata->check_phy_clk_valid =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		of_property_read_bool(np, "phy-clk-valid");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	if (pdata->have_sysif_regs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		if (pdata->controller_ver == FSL_USB_VER_NONE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 			dev_warn(&ofdev->dev, "Could not get controller version\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 			return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		if (!dev_data->drivers[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		usb_dev = fsl_usb2_device_register(ofdev, pdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 					dev_data->drivers[i], idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		if (IS_ERR(usb_dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			dev_err(&ofdev->dev, "Can't register usb device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 			return PTR_ERR(usb_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	idx++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static int __unregister_subdev(struct device *dev, void *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	platform_device_unregister(to_platform_device(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static int fsl_usb2_mph_dr_of_remove(struct platform_device *ofdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	device_for_each_child(&ofdev->dev, NULL, __unregister_subdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) #ifdef CONFIG_PPC_MPC512x
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) #define USBGENCTRL		0x200		/* NOTE: big endian */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) #define GC_WU_INT_CLR		(1 << 5)	/* Wakeup int clear */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) #define GC_ULPI_SEL		(1 << 4)	/* ULPI i/f select (usb0 only)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) #define GC_PPP			(1 << 3)	/* Inv. Port Power Polarity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) #define GC_PFP			(1 << 2)	/* Inv. Power Fault Polarity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) #define GC_WU_ULPI_EN		(1 << 1)	/* Wakeup on ULPI event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) #define GC_WU_IE		(1 << 1)	/* Wakeup interrupt enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) #define ISIPHYCTRL		0x204		/* NOTE: big endian */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) #define PHYCTRL_PHYE		(1 << 4)	/* On-chip UTMI PHY enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #define PHYCTRL_BSENH		(1 << 3)	/* Bit Stuff Enable High */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) #define PHYCTRL_BSEN		(1 << 2)	/* Bit Stuff Enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) #define PHYCTRL_LSFE		(1 << 1)	/* Line State Filter Enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #define PHYCTRL_PXE		(1 << 0)	/* PHY oscillator enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) int fsl_usb2_mpc5121_init(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	struct clk *clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	clk = devm_clk_get(pdev->dev.parent, "ipg");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	if (IS_ERR(clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		dev_err(&pdev->dev, "failed to get clk\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		return PTR_ERR(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	err = clk_prepare_enable(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		dev_err(&pdev->dev, "failed to enable clk\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	pdata->clk = clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		u32 reg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 		if (pdata->invert_drvvbus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 			reg |= GC_PPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		if (pdata->invert_pwr_fault)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 			reg |= GC_PFP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		out_be32(pdata->regs + USBGENCTRL, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static void fsl_usb2_mpc5121_exit(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	pdata->regs = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	if (pdata->clk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 		clk_disable_unprepare(pdata->clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	.big_endian_desc = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	.big_endian_mmio = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	.es = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	.have_sysif_regs = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	.le_setup_buf = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	.init = fsl_usb2_mpc5121_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	.exit = fsl_usb2_mpc5121_exit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) #endif /* CONFIG_PPC_MPC512x */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) static struct fsl_usb2_platform_data fsl_usb2_mpc8xxx_pd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	.have_sysif_regs = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) static const struct of_device_id fsl_usb2_mph_dr_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	{ .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	{ .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) #ifdef CONFIG_PPC_MPC512x
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	{ .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) MODULE_DEVICE_TABLE(of, fsl_usb2_mph_dr_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static struct platform_driver fsl_usb2_mph_dr_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		.name = "fsl-usb2-mph-dr",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		.of_match_table = fsl_usb2_mph_dr_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	.probe	= fsl_usb2_mph_dr_of_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	.remove	= fsl_usb2_mph_dr_of_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) module_platform_driver(fsl_usb2_mph_dr_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) MODULE_DESCRIPTION("FSL MPH DR OF devices driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) MODULE_LICENSE("GPL");