summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/83xx/usb.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/83xx/usb.c')
-rw-r--r--arch/powerpc/platforms/83xx/usb.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c
deleted file mode 100644
index 3d247d726ed5..000000000000
--- a/arch/powerpc/platforms/83xx/usb.c
+++ /dev/null
@@ -1,251 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Freescale 83xx USB SOC setup code
- *
- * Copyright (C) 2007 Freescale Semiconductor, Inc.
- * Author: Li Yang
- */
-
-
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/of.h>
-
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <sysdev/fsl_soc.h>
-
-#include "mpc83xx.h"
-
-
-#ifdef CONFIG_PPC_MPC834x
-int mpc834x_usb_cfg(void)
-{
- unsigned long sccr, sicrl, sicrh;
- void __iomem *immap;
- struct device_node *np = NULL;
- int port0_is_dr = 0, port1_is_dr = 0;
- const void *prop, *dr_mode;
-
- immap = ioremap(get_immrbase(), 0x1000);
- if (!immap)
- return -ENOMEM;
-
- /* Read registers */
- /* Note: DR and MPH must use the same clock setting in SCCR */
- sccr = in_be32(immap + MPC83XX_SCCR_OFFS) & ~MPC83XX_SCCR_USB_MASK;
- sicrl = in_be32(immap + MPC83XX_SICRL_OFFS) & ~MPC834X_SICRL_USB_MASK;
- sicrh = in_be32(immap + MPC83XX_SICRH_OFFS) & ~MPC834X_SICRH_USB_UTMI;
-
- np = of_find_compatible_node(NULL, NULL, "fsl-usb2-dr");
- if (np) {
- sccr |= MPC83XX_SCCR_USB_DRCM_11; /* 1:3 */
-
- prop = of_get_property(np, "phy_type", NULL);
- port1_is_dr = 1;
- if (prop && (!strcmp(prop, "utmi") ||
- !strcmp(prop, "utmi_wide"))) {
- sicrl |= MPC834X_SICRL_USB0 | MPC834X_SICRL_USB1;
- sicrh |= MPC834X_SICRH_USB_UTMI;
- port0_is_dr = 1;
- } else if (prop && !strcmp(prop, "serial")) {
- dr_mode = of_get_property(np, "dr_mode", NULL);
- if (dr_mode && !strcmp(dr_mode, "otg")) {
- sicrl |= MPC834X_SICRL_USB0 | MPC834X_SICRL_USB1;
- port0_is_dr = 1;
- } else {
- sicrl |= MPC834X_SICRL_USB1;
- }
- } else if (prop && !strcmp(prop, "ulpi")) {
- sicrl |= MPC834X_SICRL_USB1;
- } else {
- printk(KERN_WARNING "834x USB PHY type not supported\n");
- }
- of_node_put(np);
- }
- np = of_find_compatible_node(NULL, NULL, "fsl-usb2-mph");
- if (np) {
- sccr |= MPC83XX_SCCR_USB_MPHCM_11; /* 1:3 */
-
- prop = of_get_property(np, "port0", NULL);
- if (prop) {
- if (port0_is_dr)
- printk(KERN_WARNING
- "834x USB port0 can't be used by both DR and MPH!\n");
- sicrl &= ~MPC834X_SICRL_USB0;
- }
- prop = of_get_property(np, "port1", NULL);
- if (prop) {
- if (port1_is_dr)
- printk(KERN_WARNING
- "834x USB port1 can't be used by both DR and MPH!\n");
- sicrl &= ~MPC834X_SICRL_USB1;
- }
- of_node_put(np);
- }
-
- /* Write back */
- out_be32(immap + MPC83XX_SCCR_OFFS, sccr);
- out_be32(immap + MPC83XX_SICRL_OFFS, sicrl);
- out_be32(immap + MPC83XX_SICRH_OFFS, sicrh);
-
- iounmap(immap);
- return 0;
-}
-#endif /* CONFIG_PPC_MPC834x */
-
-#ifdef CONFIG_PPC_MPC831x
-int mpc831x_usb_cfg(void)
-{
- u32 temp;
- void __iomem *immap, *usb_regs;
- struct device_node *np = NULL;
- struct device_node *immr_node = NULL;
- const void *prop;
- struct resource res;
- int ret = 0;
-#ifdef CONFIG_USB_OTG
- const void *dr_mode;
-#endif
-
- np = of_find_compatible_node(NULL, NULL, "fsl-usb2-dr");
- if (!np)
- return -ENODEV;
- prop = of_get_property(np, "phy_type", NULL);
-
- /* Map IMMR space for pin and clock settings */
- immap = ioremap(get_immrbase(), 0x1000);
- if (!immap) {
- of_node_put(np);
- return -ENOMEM;
- }
-
- /* Configure clock */
- immr_node = of_get_parent(np);
- if (immr_node && (of_device_is_compatible(immr_node, "fsl,mpc8315-immr") ||
- of_device_is_compatible(immr_node, "fsl,mpc8308-immr")))
- clrsetbits_be32(immap + MPC83XX_SCCR_OFFS,
- MPC8315_SCCR_USB_MASK,
- MPC8315_SCCR_USB_DRCM_01);
- else
- clrsetbits_be32(immap + MPC83XX_SCCR_OFFS,
- MPC83XX_SCCR_USB_MASK,
- MPC83XX_SCCR_USB_DRCM_11);
-
- /* Configure pin mux for ULPI. There is no pin mux for UTMI */
- if (prop && !strcmp(prop, "ulpi")) {
- if (of_device_is_compatible(immr_node, "fsl,mpc8308-immr")) {
- clrsetbits_be32(immap + MPC83XX_SICRH_OFFS,
- MPC8308_SICRH_USB_MASK,
- MPC8308_SICRH_USB_ULPI);
- } else if (of_device_is_compatible(immr_node, "fsl,mpc8315-immr")) {
- clrsetbits_be32(immap + MPC83XX_SICRL_OFFS,
- MPC8315_SICRL_USB_MASK,
- MPC8315_SICRL_USB_ULPI);
- clrsetbits_be32(immap + MPC83XX_SICRH_OFFS,
- MPC8315_SICRH_USB_MASK,
- MPC8315_SICRH_USB_ULPI);
- } else {
- clrsetbits_be32(immap + MPC83XX_SICRL_OFFS,
- MPC831X_SICRL_USB_MASK,
- MPC831X_SICRL_USB_ULPI);
- clrsetbits_be32(immap + MPC83XX_SICRH_OFFS,
- MPC831X_SICRH_USB_MASK,
- MPC831X_SICRH_USB_ULPI);
- }
- }
-
- iounmap(immap);
-
- of_node_put(immr_node);
-
- /* Map USB SOC space */
- ret = of_address_to_resource(np, 0, &res);
- if (ret) {
- of_node_put(np);
- return ret;
- }
- usb_regs = ioremap(res.start, resource_size(&res));
-
- /* Using on-chip PHY */
- if (prop && (!strcmp(prop, "utmi_wide") ||
- !strcmp(prop, "utmi"))) {
- u32 refsel;
-
- if (of_device_is_compatible(immr_node, "fsl,mpc8308-immr"))
- goto out;
-
- if (of_device_is_compatible(immr_node, "fsl,mpc8315-immr"))
- refsel = CONTROL_REFSEL_24MHZ;
- else
- refsel = CONTROL_REFSEL_48MHZ;
- /* Set UTMI_PHY_EN and REFSEL */
- out_be32(usb_regs + FSL_USB2_CONTROL_OFFS,
- CONTROL_UTMI_PHY_EN | refsel);
- /* Using external UPLI PHY */
- } else if (prop && !strcmp(prop, "ulpi")) {
- /* Set PHY_CLK_SEL to ULPI */
- temp = CONTROL_PHY_CLK_SEL_ULPI;
-#ifdef CONFIG_USB_OTG
- /* Set OTG_PORT */
- if (!of_device_is_compatible(immr_node, "fsl,mpc8308-immr")) {
- dr_mode = of_get_property(np, "dr_mode", NULL);
- if (dr_mode && !strcmp(dr_mode, "otg"))
- temp |= CONTROL_OTG_PORT;
- }
-#endif /* CONFIG_USB_OTG */
- out_be32(usb_regs + FSL_USB2_CONTROL_OFFS, temp);
- } else {
- printk(KERN_WARNING "831x USB PHY type not supported\n");
- ret = -EINVAL;
- }
-
-out:
- iounmap(usb_regs);
- of_node_put(np);
- return ret;
-}
-#endif /* CONFIG_PPC_MPC831x */
-
-#ifdef CONFIG_PPC_MPC837x
-int mpc837x_usb_cfg(void)
-{
- void __iomem *immap;
- struct device_node *np = NULL;
- const void *prop;
- int ret = 0;
-
- np = of_find_compatible_node(NULL, NULL, "fsl-usb2-dr");
- if (!np || !of_device_is_available(np)) {
- of_node_put(np);
- return -ENODEV;
- }
- prop = of_get_property(np, "phy_type", NULL);
-
- if (!prop || (strcmp(prop, "ulpi") && strcmp(prop, "serial"))) {
- printk(KERN_WARNING "837x USB PHY type not supported\n");
- of_node_put(np);
- return -EINVAL;
- }
-
- /* Map IMMR space for pin and clock settings */
- immap = ioremap(get_immrbase(), 0x1000);
- if (!immap) {
- of_node_put(np);
- return -ENOMEM;
- }
-
- /* Configure clock */
- clrsetbits_be32(immap + MPC83XX_SCCR_OFFS, MPC837X_SCCR_USB_DRCM_11,
- MPC837X_SCCR_USB_DRCM_11);
-
- /* Configure pin mux for ULPI/serial */
- clrsetbits_be32(immap + MPC83XX_SICRL_OFFS, MPC837X_SICRL_USB_MASK,
- MPC837X_SICRL_USB_ULPI);
-
- iounmap(immap);
- of_node_put(np);
- return ret;
-}
-#endif /* CONFIG_PPC_MPC837x */
generated by cgit (git 2.34.1) at 2024-05-09 03:42:18 +0000