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USB: DM: Convert i.MX5 ehci code to driver model

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This commit converts i.MX5's EHCI USB host driver to driver model (DM_USB).
It is a straightforward conversion (to reuse as much code as possible),
based on ehci-mx6.c code.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2019-04-04 12:26:52 +02:00 committed by Stefano Babic
parent 414ba7cda3
commit 22988766da
1 changed files with 103 additions and 0 deletions
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103
drivers/usb/host/ehci-mx5.c
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@ -12,6 +12,8 @@
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/clock.h>
#include <dm.h>
#include <power/regulator.h>
#include "ehci.h"
@ -223,6 +225,7 @@ __weak void mx5_ehci_powerup_fixup(struct ehci_ctrl *ctrl, uint32_t *status_reg,
mdelay(50);
}
#if !CONFIG_IS_ENABLED(DM_USB)
static const struct ehci_ops mx5_ehci_ops = {
.powerup_fixup = mx5_ehci_powerup_fixup,
};
@ -267,3 +270,103 @@ int ehci_hcd_stop(int index)
{
return 0;
}
#else /* CONFIG_IS_ENABLED(DM_USB) */
struct ehci_mx5_priv_data {
struct ehci_ctrl ctrl;
struct usb_ehci *ehci;
struct udevice *vbus_supply;
enum usb_init_type init_type;
int portnr;
};
static const struct ehci_ops mx5_ehci_ops = {
.powerup_fixup = mx5_ehci_powerup_fixup,
};
static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
{
struct usb_platdata *plat = dev_get_platdata(dev);
const char *mode;
mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "dr_mode", NULL);
if (mode) {
if (strcmp(mode, "peripheral") == 0)
plat->init_type = USB_INIT_DEVICE;
else if (strcmp(mode, "host") == 0)
plat->init_type = USB_INIT_HOST;
else
return -EINVAL;
}
return 0;
}
static int ehci_usb_probe(struct udevice *dev)
{
struct usb_platdata *plat = dev_get_platdata(dev);
struct usb_ehci *ehci = (struct usb_ehci *)devfdt_get_addr(dev);
struct ehci_mx5_priv_data *priv = dev_get_priv(dev);
enum usb_init_type type = plat->init_type;
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
int ret;
set_usboh3_clk();
enable_usboh3_clk(true);
set_usb_phy_clk();
enable_usb_phy1_clk(true);
enable_usb_phy2_clk(true);
mdelay(1);
priv->ehci = ehci;
priv->portnr = dev->seq;
priv->init_type = type;
ret = device_get_supply_regulator(dev, "vbus-supply",
&priv->vbus_supply);
if (ret)
debug("%s: No vbus supply\n", dev->name);
if (!ret && priv->vbus_supply) {
ret = regulator_set_enable(priv->vbus_supply,
(type == USB_INIT_DEVICE) ?
false : true);
if (ret) {
puts("Error enabling VBUS supply\n");
return ret;
}
}
hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
hcor = (struct ehci_hcor *)((uint32_t)hccr +
HC_LENGTH(ehci_readl(&(hccr)->cr_capbase)));
setbits_le32(&ehci->usbmode, CM_HOST);
__raw_writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc);
setbits_le32(&ehci->portsc, USB_EN);
mxc_set_usbcontrol(priv->portnr, CONFIG_MXC_USB_FLAGS);
mdelay(10);
return ehci_register(dev, hccr, hcor, &mx5_ehci_ops, 0,
priv->init_type);
}
static const struct udevice_id mx5_usb_ids[] = {
{ .compatible = "fsl,imx53-usb" },
{ }
};
U_BOOT_DRIVER(usb_mx5) = {
.name = "ehci_mx5",
.id = UCLASS_USB,
.of_match = mx5_usb_ids,
.ofdata_to_platdata = ehci_usb_ofdata_to_platdata,
.probe = ehci_usb_probe,
.remove = ehci_deregister,
.ops = &ehci_usb_ops,
.platdata_auto_alloc_size = sizeof(struct usb_platdata),
.priv_auto_alloc_size = sizeof(struct ehci_mx5_priv_data),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};
#endif /* !CONFIG_IS_ENABLED(DM_USB) */