diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-marvell.c | 86 |
2 files changed, 77 insertions, 16 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index b30b43d..2a2bffe 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -52,6 +52,13 @@ config USB_EHCI if USB_EHCI_HCD +config USB_EHCI_MARVELL + bool "Support for MVEBU (AXP / A38x) on-chip EHCI USB controller" + depends on ARCH_MVEBU + default y + ---help--- + Enables support for the on-chip EHCI controller on MVEBU SoCs. + config USB_EHCI_MX6 bool "Support for i.MX6 on-chip EHCI USB controller" depends on ARCH_MX6 diff --git a/drivers/usb/host/ehci-marvell.c b/drivers/usb/host/ehci-marvell.c index 50fa01c..5b0f46a 100644 --- a/drivers/usb/host/ehci-marvell.c +++ b/drivers/usb/host/ehci-marvell.c @@ -12,6 +12,7 @@ #include "ehci.h" #include <linux/mbus.h> #include <asm/arch/cpu.h> +#include <dm.h> #if defined(CONFIG_KIRKWOOD) #include <asm/arch/soc.h> @@ -28,24 +29,19 @@ DECLARE_GLOBAL_DATA_PTR; /* * USB 2.0 Bridge Address Decoding registers setup */ -#ifdef CONFIG_ARMADA_XP +#ifdef CONFIG_DM_USB -/* - * Armada XP and Armada 38x have different base addresses for - * the USB 2.0 EHCI host controller. So we need to provide - * a mechnism to support both here. - */ -#define MVUSB0_BASE \ - (mvebu_soc_family() == MVEBU_SOC_A38X ? \ - MVEBU_USB20_BASE : MVEBU_AXP_USB_BASE) -#define MVUSB_BASE(port) MVUSB0_BASE + ((port) << 12) +struct ehci_mvebu_priv { + struct ehci_ctrl ehci; + fdt_addr_t hcd_base; +}; /* * Once all the older Marvell SoC's (Orion, Kirkwood) are converted * to the common mvebu archticture including the mbus setup, this * will be the only function needed to configure the access windows */ -static void usb_brg_adrdec_setup(int index) +static void usb_brg_adrdec_setup(u32 base) { const struct mbus_dram_target_info *dram; int i; @@ -53,8 +49,8 @@ static void usb_brg_adrdec_setup(int index) dram = mvebu_mbus_dram_info(); for (i = 0; i < 4; i++) { - writel(0, MVUSB_BASE(index) + USB_WINDOW_CTRL(i)); - writel(0, MVUSB_BASE(index) + USB_WINDOW_BASE(i)); + writel(0, base + USB_WINDOW_CTRL(i)); + writel(0, base + USB_WINDOW_BASE(i)); } for (i = 0; i < dram->num_cs; i++) { @@ -63,12 +59,69 @@ static void usb_brg_adrdec_setup(int index) /* Write size, attributes and target id to control register */ writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) | (dram->mbus_dram_target_id << 4) | 1, - MVUSB_BASE(index) + USB_WINDOW_CTRL(i)); + base + USB_WINDOW_CTRL(i)); /* Write base address to base register */ - writel(cs->base, MVUSB_BASE(index) + USB_WINDOW_BASE(i)); + writel(cs->base, base + USB_WINDOW_BASE(i)); } } + +static int ehci_mvebu_probe(struct udevice *dev) +{ + struct ehci_mvebu_priv *priv = dev_get_priv(dev); + struct ehci_hccr *hccr; + struct ehci_hcor *hcor; + + /* + * Get the base address for EHCI controller from the device node + */ + priv->hcd_base = dev_get_addr(dev); + if (priv->hcd_base == FDT_ADDR_T_NONE) { + debug("Can't get the EHCI register base address\n"); + return -ENXIO; + } + + usb_brg_adrdec_setup(priv->hcd_base); + + hccr = (struct ehci_hccr *)(priv->hcd_base + 0x100); + hcor = (struct ehci_hcor *) + ((u32)hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + debug("ehci-marvell: init hccr %x and hcor %x hc_length %d\n", + (u32)hccr, (u32)hcor, + (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST); +} + +static int ehci_mvebu_remove(struct udevice *dev) +{ + int ret; + + ret = ehci_deregister(dev); + if (ret) + return ret; + + return 0; +} + +static const struct udevice_id ehci_usb_ids[] = { + { .compatible = "marvell,orion-ehci", }, + { } +}; + +U_BOOT_DRIVER(ehci_mvebu) = { + .name = "ehci_mvebu", + .id = UCLASS_USB, + .of_match = ehci_usb_ids, + .probe = ehci_mvebu_probe, + .remove = ehci_mvebu_remove, + .ops = &ehci_usb_ops, + .platdata_auto_alloc_size = sizeof(struct usb_platdata), + .priv_auto_alloc_size = sizeof(struct ehci_mvebu_priv), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; + #else #define MVUSB_BASE(port) MVUSB0_BASE @@ -112,7 +165,6 @@ static void usb_brg_adrdec_setup(int index) writel(base, MVUSB0_BASE + USB_WINDOW_BASE(i)); } } -#endif /* * Create the appropriate control structures to manage @@ -142,3 +194,5 @@ int ehci_hcd_stop(int index) { return 0; } + +#endif /* CONFIG_DM_USB */ |