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dm: zynq: usb: Convert to CONFIG_DM_USB

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Convert zynq USB to driver model. Note this is tested on zynq-zybo only.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-07-05 17:10:14 -06:00
parent 04e38905d7
commit dec49e862e
2 changed files with 54 additions and 53 deletions
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2
arch/arm/Kconfig
View file

@ -661,6 +661,7 @@ config ARCH_ZYNQ
select DM_SERIAL
select DM_SPI_FLASH
select SPL_SEPARATE_BSS if SPL
select DM_USB if USB
config ARCH_ZYNQMP
bool "Support Xilinx ZynqMP Platform"
@ -671,6 +672,7 @@ config ARCH_ZYNQMP
select SUPPORT_SPL
select CLK
select SPL_CLK
select DM_USB if USB
config TEGRA
bool "NVIDIA Tegra"

105
drivers/usb/host/ehci-zynq.c
View file

@ -7,55 +7,48 @@
*/
#include <common.h>
#include <dm.h>
#include <usb.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
#include <asm/io.h>
#include <usb.h>
#include <usb/ehci-ci.h>
#include <usb/ulpi.h>
#include "ehci.h"
#define ZYNQ_USB_USBCMD_RST 0x0000002
#define ZYNQ_USB_USBCMD_STOP 0x0000000
#define ZYNQ_USB_NUM_MIO 12
/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
struct ehci_hcor **hcor)
{
struct zynq_ehci_priv {
struct ehci_ctrl ehcictrl;
struct usb_ehci *ehci;
};
static int ehci_zynq_ofdata_to_platdata(struct udevice *dev)
{
struct zynq_ehci_priv *priv = dev_get_priv(dev);
priv->ehci = (struct usb_ehci *)dev_get_addr_ptr(dev);
if (!priv->ehci)
return -EINVAL;
return 0;
}
static int ehci_zynq_probe(struct udevice *dev)
{
struct usb_platdata *plat = dev_get_platdata(dev);
struct zynq_ehci_priv *priv = dev_get_priv(dev);
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
struct ulpi_viewport ulpi_vp;
int ret, mio_usb;
/* Used for writing the ULPI data address */
struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
int ret;
if (!index) {
mio_usb = zynq_slcr_get_mio_pin_status("usb0");
if (mio_usb != ZYNQ_USB_NUM_MIO) {
printf("usb0 wrong num MIO: %d, Index %d\n", mio_usb,
index);
return -1;
}
ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR0;
} else {
mio_usb = zynq_slcr_get_mio_pin_status("usb1");
if (mio_usb != ZYNQ_USB_NUM_MIO) {
printf("usb1 wrong num MIO: %d, Index %d\n", mio_usb,
index);
return -1;
}
ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR1;
}
hccr = (struct ehci_hccr *)((uint32_t)&priv->ehci->caplength);
hcor = (struct ehci_hcor *)((uint32_t) hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
*hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
*hcor = (struct ehci_hcor *)((uint32_t) *hccr +
HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint;
ulpi_vp.viewport_addr = (u32)&priv->ehci->ulpi_viewpoint;
ulpi_vp.port_num = 0;
ret = ulpi_init(&ulpi_vp);
@ -77,28 +70,34 @@ int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set,
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
return 0;
return ehci_register(dev, hccr, hcor, NULL, 0, plat->init_type);
}
/*
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
*/
int ehci_hcd_stop(int index)
static int ehci_zynq_remove(struct udevice *dev)
{
struct usb_ehci *ehci;
int ret;
if (!index)
ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR0;
else
ehci = (struct usb_ehci *)ZYNQ_USB_BASEADDR1;
/* Stop controller */
writel(ZYNQ_USB_USBCMD_STOP, &ehci->usbcmd);
udelay(1000);
/* Initiate controller reset */
writel(ZYNQ_USB_USBCMD_RST, &ehci->usbcmd);
ret = ehci_deregister(dev);
if (ret)
return ret;
return 0;
}
static const struct udevice_id ehci_zynq_ids[] = {
{ .compatible = "xlnx,zynq-usb-2.20a" },
{ }
};
U_BOOT_DRIVER(ehci_zynq) = {
.name = "ehci_zynq",
.id = UCLASS_USB,
.of_match = ehci_zynq_ids,
.ofdata_to_platdata = ehci_zynq_ofdata_to_platdata,
.probe = ehci_zynq_probe,
.remove = ehci_zynq_remove,
.ops = &ehci_usb_ops,
.platdata_auto_alloc_size = sizeof(struct usb_platdata),
.priv_auto_alloc_size = sizeof(struct zynq_ehci_priv),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};