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https://github.com/brain-hackers/u-boot-brain
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dm: ehci-mx6: support driver model
Support driver model for ehci mx6 driver. Consolidate code to be shared between DM and non-DM, such as introducing ehci_mx6_common_init. For simplicity, some old fasion code are keeped for DM usage, such as board_ehci_power and board_usb_phy_mode. And 'dr-mode', usbphy and vbus handling code for DM is not added now. These will be added in future patches. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Marek Vasut <marex@denx.de> Cc: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Simon Glass <sjg@chromium.org>
This commit is contained in:
Peng Fan
Marek Vasut
parent
2863a9bfc2
commit
bb42fb4f10
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@ -15,6 +15,7 @@
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/clock.h>
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#include <asm/imx-common/iomux-v3.h>
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#include <dm.h>
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#include "ehci.h"
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@ -307,21 +308,10 @@ int __weak board_ehci_power(int port, int on)
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return 0;
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}
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int ehci_hcd_init(int index, enum usb_init_type init,
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struct ehci_hccr **hccr, struct ehci_hcor **hcor)
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int ehci_mx6_common_init(struct usb_ehci *ehci, int index)
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{
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enum usb_init_type type;
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#if defined(CONFIG_MX6)
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u32 controller_spacing = 0x200;
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#elif defined(CONFIG_MX7)
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u32 controller_spacing = 0x10000;
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#endif
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struct usb_ehci *ehci = (struct usb_ehci *)(USB_BASE_ADDR +
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(controller_spacing * index));
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int ret;
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if (index > 3)
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return -EINVAL;
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enable_usboh3_clk(1);
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mdelay(1);
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@ -337,11 +327,38 @@ int ehci_hcd_init(int index, enum usb_init_type init,
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usb_internal_phy_clock_gate(index, 1);
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usb_phy_enable(index, ehci);
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#endif
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return 0;
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}
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#ifndef CONFIG_DM_USB
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int ehci_hcd_init(int index, enum usb_init_type init,
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struct ehci_hccr **hccr, struct ehci_hcor **hcor)
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{
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enum usb_init_type type;
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#if defined(CONFIG_MX6)
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u32 controller_spacing = 0x200;
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#elif defined(CONFIG_MX7)
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u32 controller_spacing = 0x10000;
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#endif
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struct usb_ehci *ehci = (struct usb_ehci *)(USB_BASE_ADDR +
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(controller_spacing * index));
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int ret;
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if (index > 3)
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return -EINVAL;
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ret = ehci_mx6_common_init(ehci, index);
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if (ret)
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return ret;
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type = board_usb_phy_mode(index);
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*hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
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*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
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HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
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if (hccr && hcor) {
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*hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
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*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
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HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
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}
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if ((type == init) || (type == USB_INIT_DEVICE))
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board_ehci_power(index, (type == USB_INIT_DEVICE) ? 0 : 1);
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@ -363,3 +380,102 @@ int ehci_hcd_stop(int index)
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{
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return 0;
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}
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#else
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struct ehci_mx6_priv_data {
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struct ehci_ctrl ctrl;
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struct usb_ehci *ehci;
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enum usb_init_type init_type;
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int portnr;
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};
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static int mx6_init_after_reset(struct ehci_ctrl *dev)
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{
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struct ehci_mx6_priv_data *priv = dev->priv;
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enum usb_init_type type = priv->init_type;
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struct usb_ehci *ehci = priv->ehci;
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int ret;
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ret = ehci_mx6_common_init(priv->ehci, priv->portnr);
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if (ret)
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return ret;
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board_ehci_power(priv->portnr, (type == USB_INIT_DEVICE) ? 0 : 1);
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if (type == USB_INIT_DEVICE)
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return 0;
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setbits_le32(&ehci->usbmode, CM_HOST);
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writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc);
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setbits_le32(&ehci->portsc, USB_EN);
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mdelay(10);
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return 0;
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}
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static const struct ehci_ops mx6_ehci_ops = {
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.init_after_reset = mx6_init_after_reset
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};
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static int ehci_usb_probe(struct udevice *dev)
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{
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struct usb_platdata *plat = dev_get_platdata(dev);
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struct usb_ehci *ehci = (struct usb_ehci *)dev_get_addr(dev);
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struct ehci_mx6_priv_data *priv = dev_get_priv(dev);
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struct ehci_hccr *hccr;
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struct ehci_hcor *hcor;
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int ret;
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priv->ehci = ehci;
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priv->portnr = dev->seq;
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priv->init_type = plat->init_type;
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ret = ehci_mx6_common_init(ehci, priv->portnr);
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if (ret)
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return ret;
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board_ehci_power(priv->portnr, (priv->init_type == USB_INIT_DEVICE) ? 0 : 1);
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if (priv->init_type == USB_INIT_HOST) {
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setbits_le32(&ehci->usbmode, CM_HOST);
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writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc);
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setbits_le32(&ehci->portsc, USB_EN);
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}
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mdelay(10);
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hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
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hcor = (struct ehci_hcor *)((uint32_t)hccr +
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HC_LENGTH(ehci_readl(&(hccr)->cr_capbase)));
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return ehci_register(dev, hccr, hcor, &mx6_ehci_ops, 0, priv->init_type);
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}
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static int ehci_usb_remove(struct udevice *dev)
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{
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int ret;
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ret = ehci_deregister(dev);
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if (ret)
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return ret;
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return 0;
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}
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static const struct udevice_id mx6_usb_ids[] = {
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{ .compatible = "fsl,imx27-usb" },
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{ }
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};
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U_BOOT_DRIVER(usb_mx6) = {
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.name = "ehci_mx6",
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.id = UCLASS_USB,
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.of_match = mx6_usb_ids,
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.probe = ehci_usb_probe,
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.remove = ehci_usb_remove,
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.ops = &ehci_usb_ops,
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.platdata_auto_alloc_size = sizeof(struct usb_platdata),
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.priv_auto_alloc_size = sizeof(struct ehci_mx6_priv_data),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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#endif
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