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41575d8e4c
u-boot-brain/drivers/usb/musb-new/omap2430.c
Simon Glass 41575d8e4c dm: treewide: Rename auto_alloc_size members to be shorter 
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 08:00:25 -07:00

288 lines
7.0 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/usb/otg.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);
}
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_platdata {
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_ofdata_to_platdata(struct udevice *dev)
{
struct omap2430_musb_platdata *platdata = dev_get_platdata(dev);
const void *fdt = gd->fdt_blob;
int node = dev_of_offset(dev);
platdata->base = (void *)dev_read_addr_ptr(dev);
platdata->musb_config.multipoint = fdtdec_get_int(fdt, node,
"multipoint",
-1);
if (platdata->musb_config.multipoint < 0) {
pr_err("MUSB multipoint DT entry missing\n");
return -ENOENT;
}
platdata->musb_config.dyn_fifo = 1;
platdata->musb_config.num_eps = fdtdec_get_int(fdt, node,
"num-eps", -1);
if (platdata->musb_config.num_eps < 0) {
pr_err("MUSB num-eps DT entry missing\n");
return -ENOENT;
}
platdata->musb_config.ram_bits = fdtdec_get_int(fdt, node,
"ram-bits", -1);
if (platdata->musb_config.ram_bits < 0) {
pr_err("MUSB ram-bits DT entry missing\n");
return -ENOENT;
}
platdata->plat.power = fdtdec_get_int(fdt, node,
"power", -1);
if (platdata->plat.power < 0) {
pr_err("MUSB power DT entry missing\n");
return -ENOENT;
}
platdata->otg_board_data.interface_type = fdtdec_get_int(fdt, node,
"interface-type", -1);
if (platdata->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 */
platdata->plat.mode = fdtdec_get_int(fdt, node,
"mode", -1);
if (platdata->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 */
platdata->plat.mode = MUSB_HOST;
#else /* For that matter, MUSB_PERIPHERAL doesn't either */
platdata->plat.mode = MUSB_PERIPHERAL;
#endif
#endif
platdata->otg_board_data.dev = dev;
platdata->plat.config = &platdata->musb_config;
platdata->plat.platform_ops = &omap2430_ops;
platdata->plat.board_data = &platdata->otg_board_data;
return 0;
}
static int omap2430_musb_probe(struct udevice *dev)
{
#ifdef CONFIG_USB_MUSB_HOST
struct musb_host_data *host = dev_get_priv(dev);
#else
struct musb *musbp;
#endif
struct omap2430_musb_platdata *platdata = dev_get_platdata(dev);
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
struct omap_musb_board_data *otg_board_data;
int ret = 0;
void *base = dev_read_addr_ptr(dev);
priv->desc_before_addr = true;
otg_board_data = &platdata->otg_board_data;
#ifdef CONFIG_USB_MUSB_HOST
host->host = musb_init_controller(&platdata->plat,
(struct device *)otg_board_data,
platdata->base);
if (!host->host) {
return -EIO;
}
ret = musb_lowlevel_init(host);
#else
musbp = musb_register(&platdata->plat,
(struct device *)otg_board_data,
platdata->base);
if (IS_ERR_OR_NULL(musbp))
return -EINVAL;
#endif
return ret;
}
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,
.ofdata_to_platdata = omap2430_musb_ofdata_to_platdata,
.probe = omap2430_musb_probe,
.remove = omap2430_musb_remove,
#ifdef CONFIG_USB_MUSB_HOST
.ops = &musb_usb_ops,
#endif
.platdata_auto = sizeof(struct omap2430_musb_platdata),
.priv_auto = sizeof(struct musb_host_data),
};
#endif /* CONFIG_IS_ENABLED(DM_USB) */
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