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u-boot/drivers/usb/musb-new/omap2430.c
Simon Glass 1e94b46f73 common: Drop linux/printk.h from common header 
This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-09-24 09:54:57 -04:00

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7.3 KiB
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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2005-2007 by Texas Instruments
* Some code has been taken from tusb6010.c
* Copyrights for that are attributable to:
* Copyright (C) 2006 Nokia Corporation
* Tony Lindgren <tony@atomide.com>
*
* This file is part of the Inventra Controller Driver for Linux.
*/
#include <common.h>
#include <dm.h>
#include <log.h>
#include <serial.h>
#include <dm/device-internal.h>
#include <dm/device_compat.h>
#include <dm/lists.h>
#include <linux/err.h>
#include <linux/printk.h>
#include <linux/usb/otg.h>
#include <asm/global_data.h>
#include <asm/omap_common.h>
#include <asm/omap_musb.h>
#include <twl4030.h>
#include <twl6030.h>
#include "linux-compat.h"
#include "musb_core.h"
#include "omap2430.h"
#include "musb_uboot.h"
static inline void omap2430_low_level_exit(struct musb *musb)
{
u32 l;
/* in any role */
l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l |= ENABLEFORCE; /* enable MSTANDBY */
musb_writel(musb->mregs, OTG_FORCESTDBY, l);
}
static inline void omap2430_low_level_init(struct musb *musb)
{
u32 l;
l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l &= ~ENABLEFORCE; /* disable MSTANDBY */
musb_writel(musb->mregs, OTG_FORCESTDBY, l);
}
#ifdef CONFIG_DM_USB_GADGET
int dm_usb_gadget_handle_interrupts(struct udevice *dev)
{
struct musb_host_data *host = dev_get_priv(dev);
host->host->isr(0, host->host);
return 0;
}
#endif
static int omap2430_musb_init(struct musb *musb)
{
u32 l;
int status = 0;
unsigned long int start;
struct omap_musb_board_data *data =
(struct omap_musb_board_data *)musb->controller;
/* Reset the controller */
musb_writel(musb->mregs, OTG_SYSCONFIG, SOFTRST);
start = get_timer(0);
while (1) {
l = musb_readl(musb->mregs, OTG_SYSCONFIG);
if ((l & SOFTRST) == 0)
break;
if (get_timer(start) > (CONFIG_SYS_HZ / 1000)) {
dev_err(musb->controller, "MUSB reset is taking too long\n");
return -ENODEV;
}
}
l = musb_readl(musb->mregs, OTG_INTERFSEL);
if (data->interface_type == MUSB_INTERFACE_UTMI) {
/* OMAP4 uses Internal PHY GS70 which uses UTMI interface */
l &= ~ULPI_12PIN; /* Disable ULPI */
l |= UTMI_8BIT; /* Enable UTMI */
} else {
l |= ULPI_12PIN;
}
musb_writel(musb->mregs, OTG_INTERFSEL, l);
pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
"sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
musb_readl(musb->mregs, OTG_REVISION),
musb_readl(musb->mregs, OTG_SYSCONFIG),
musb_readl(musb->mregs, OTG_SYSSTATUS),
musb_readl(musb->mregs, OTG_INTERFSEL),
musb_readl(musb->mregs, OTG_SIMENABLE));
return 0;
err1:
return status;
}
static int omap2430_musb_enable(struct musb *musb)
{
#ifdef CONFIG_TWL4030_USB
if (twl4030_usb_ulpi_init()) {
serial_printf("ERROR: %s Could not initialize PHY\n",
__PRETTY_FUNCTION__);
}
#endif
#ifdef CONFIG_TWL6030_POWER
twl6030_usb_device_settings();
#endif
#ifdef CONFIG_OMAP44XX
u32 *usbotghs_control = (u32 *)((*ctrl)->control_usbotghs_ctrl);
*usbotghs_control = USBOTGHS_CONTROL_AVALID |
USBOTGHS_CONTROL_VBUSVALID | USBOTGHS_CONTROL_IDDIG;
#endif
return 0;
}
static void omap2430_musb_disable(struct musb *musb)
{
}
static int omap2430_musb_exit(struct musb *musb)
{
del_timer_sync(&musb_idle_timer);
omap2430_low_level_exit(musb);
return 0;
}
const struct musb_platform_ops omap2430_ops = {
.init = omap2430_musb_init,
.exit = omap2430_musb_exit,
.enable = omap2430_musb_enable,
.disable = omap2430_musb_disable,
};
#if CONFIG_IS_ENABLED(DM_USB)
struct omap2430_musb_plat {
void *base;
void *ctrl_mod_base;
struct musb_hdrc_platform_data plat;
struct musb_hdrc_config musb_config;
struct omap_musb_board_data otg_board_data;
};
static int omap2430_musb_of_to_plat(struct udevice *dev)
{
struct omap2430_musb_plat *plat = dev_get_plat(dev);
const void *fdt = gd->fdt_blob;
int node = dev_of_offset(dev);
plat->base = (void *)dev_read_addr_ptr(dev);
plat->musb_config.multipoint = fdtdec_get_int(fdt, node, "multipoint",
-1);
if (plat->musb_config.multipoint < 0) {
pr_err("MUSB multipoint DT entry missing\n");
return -ENOENT;
}
plat->musb_config.dyn_fifo = 1;
plat->musb_config.num_eps = fdtdec_get_int(fdt, node, "num-eps", -1);
if (plat->musb_config.num_eps < 0) {
pr_err("MUSB num-eps DT entry missing\n");
return -ENOENT;
}
plat->musb_config.ram_bits = fdtdec_get_int(fdt, node, "ram-bits", -1);
if (plat->musb_config.ram_bits < 0) {
pr_err("MUSB ram-bits DT entry missing\n");
return -ENOENT;
}
plat->plat.power = fdtdec_get_int(fdt, node, "power", -1);
if (plat->plat.power < 0) {
pr_err("MUSB power DT entry missing\n");
return -ENOENT;
}
plat->otg_board_data.interface_type = fdtdec_get_int(fdt, node,
"interface-type",
-1);
if (plat->otg_board_data.interface_type < 0) {
pr_err("MUSB interface-type DT entry missing\n");
return -ENOENT;
}
#if 0 /* In a perfect world, mode would be set to OTG, mode 3 from DT */
plat->plat.mode = fdtdec_get_int(fdt, node, "mode", -1);
if (plat->plat.mode < 0) {
pr_err("MUSB mode DT entry missing\n");
return -ENOENT;
}
#else /* MUSB_OTG, it doesn't work */
#ifdef CONFIG_USB_MUSB_HOST /* Host seems to be the only option that works */
plat->plat.mode = MUSB_HOST;
#else /* For that matter, MUSB_PERIPHERAL doesn't either */
plat->plat.mode = MUSB_PERIPHERAL;
#endif
#endif
plat->otg_board_data.dev = dev;
plat->plat.config = &plat->musb_config;
plat->plat.platform_ops = &omap2430_ops;
plat->plat.board_data = &plat->otg_board_data;
return 0;
}
static int omap2430_musb_probe(struct udevice *dev)
{
struct omap2430_musb_plat *plat = dev_get_plat(dev);
struct omap_musb_board_data *otg_board_data;
int ret = 0;
void *base = dev_read_addr_ptr(dev);
struct musb *musbp;
otg_board_data = &plat->otg_board_data;
if (IS_ENABLED(CONFIG_USB_MUSB_HOST)) {
struct musb_host_data *host = dev_get_priv(dev);
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
priv->desc_before_addr = true;
host->host = musb_init_controller(&plat->plat,
(struct device *)otg_board_data,
plat->base);
if (!host->host)
return -EIO;
return musb_lowlevel_init(host);
} else if (CONFIG_IS_ENABLED(DM_USB_GADGET)) {
struct musb_host_data *host = dev_get_priv(dev);
host->host = musb_init_controller(&plat->plat,
(struct device *)otg_board_data,
plat->base);
if (!host->host)
return -EIO;
return usb_add_gadget_udc((struct device *)otg_board_data, &host->host->g);
}
musbp = musb_register(&plat->plat, (struct device *)otg_board_data,
plat->base);
if (IS_ERR_OR_NULL(musbp))
return -EINVAL;
return 0;
}
static int omap2430_musb_remove(struct udevice *dev)
{
struct musb_host_data *host = dev_get_priv(dev);
musb_stop(host->host);
return 0;
}
static const struct udevice_id omap2430_musb_ids[] = {
{ .compatible = "ti,omap3-musb" },
{ .compatible = "ti,omap4-musb" },
{ }
};
U_BOOT_DRIVER(omap2430_musb) = {
.name = "omap2430-musb",
#ifdef CONFIG_USB_MUSB_HOST
.id = UCLASS_USB,
#else
.id = UCLASS_USB_GADGET_GENERIC,
#endif
.of_match = omap2430_musb_ids,
.of_to_plat = omap2430_musb_of_to_plat,
.probe = omap2430_musb_probe,
.remove = omap2430_musb_remove,
#ifdef CONFIG_USB_MUSB_HOST
.ops = &musb_usb_ops,
#endif
.plat_auto = sizeof(struct omap2430_musb_plat),
.priv_auto = sizeof(struct musb_host_data),
};
#endif /* CONFIG_IS_ENABLED(DM_USB) */
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