X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fehci-marvell.c;h=73432f2acd0d160de733787256d4fb03ee74d06c;hb=83d290c56fab2d38cd1ab4c4cc7099559c1d5046;hp=52c43fdc5aaa1fdc2a99ed3177c65c35b3a2c979;hpb=d44a5f51288aec60c6bdb4ac939d75c24e5bf9c2;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/usb/host/ehci-marvell.c b/drivers/usb/host/ehci-marvell.c index 52c43fd..73432f2 100644 --- a/drivers/usb/host/ehci-marvell.c +++ b/drivers/usb/host/ehci-marvell.c @@ -1,36 +1,164 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2009 * Marvell Semiconductor * Written-by: Prafulla Wadaskar - * - * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include "ehci.h" +#include #include +#include #if defined(CONFIG_KIRKWOOD) -#include +#include #elif defined(CONFIG_ORION5X) #include #endif DECLARE_GLOBAL_DATA_PTR; -#define rdl(off) readl(MVUSB0_BASE + (off)) -#define wrl(off, val) writel((val), MVUSB0_BASE + (off)) - #define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4)) #define USB_WINDOW_BASE(i) (0x324 + ((i) << 4)) #define USB_TARGET_DRAM 0x0 +#define USB2_SBUSCFG_OFF 0x90 + +#define USB_SBUSCFG_BAWR_OFF 0x6 +#define USB_SBUSCFG_BARD_OFF 0x3 +#define USB_SBUSCFG_AHBBRST_OFF 0x0 + +#define USB_SBUSCFG_BAWR_ALIGN_64B 0x4 +#define USB_SBUSCFG_BARD_ALIGN_64B 0x4 +#define USB_SBUSCFG_AHBBRST_INCR16 0x7 + /* * USB 2.0 Bridge Address Decoding registers setup */ -static void usb_brg_adrdec_setup(void) +#ifdef CONFIG_DM_USB + +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(void *base) +{ + const struct mbus_dram_target_info *dram; + int i; + + dram = mvebu_mbus_dram_info(); + + for (i = 0; i < 4; i++) { + writel(0, base + USB_WINDOW_CTRL(i)); + writel(0, base + USB_WINDOW_BASE(i)); + } + + for (i = 0; i < dram->num_cs; i++) { + const struct mbus_dram_window *cs = dram->cs + i; + + /* 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, + base + USB_WINDOW_CTRL(i)); + + /* Write base address to base register */ + writel(cs->base, base + USB_WINDOW_BASE(i)); + } +} + +static void marvell_ehci_powerup_fixup(struct ehci_ctrl *ctrl, + uint32_t *status_reg, uint32_t *reg) +{ + struct ehci_mvebu_priv *priv = ctrl->priv; + + /* + * Set default value for reg SBUSCFG, which is Control for the AMBA + * system bus interface: + * BAWR = BARD = 4 : Align rd/wr bursts packets larger than 64 bytes + * AHBBRST = 7 : Align AHB burst for packets larger than 64 bytes + */ + writel((USB_SBUSCFG_BAWR_ALIGN_64B << USB_SBUSCFG_BAWR_OFF) | + (USB_SBUSCFG_BARD_ALIGN_64B << USB_SBUSCFG_BARD_OFF) | + (USB_SBUSCFG_AHBBRST_INCR16 << USB_SBUSCFG_AHBBRST_OFF), + priv->hcd_base + USB2_SBUSCFG_OFF); + + mdelay(50); +} + +static struct ehci_ops marvell_ehci_ops = { + .powerup_fixup = NULL, +}; + +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 = devfdt_get_addr(dev); + if (priv->hcd_base == FDT_ADDR_T_NONE) { + debug("Can't get the EHCI register base address\n"); + return -ENXIO; + } + + /* + * For SoCs without hlock like Armada3700 we need to program the sbuscfg + * reg to guarantee AHB master's burst will not overrun or underrun + * the FIFO. Otherwise all USB2 write option will fail. + * Also, the address decoder doesn't need to get setup with this + * SoC, so don't call usb_brg_adrdec_setup(). + */ + if (device_is_compatible(dev, "marvell,armada3700-ehci")) + marvell_ehci_ops.powerup_fixup = marvell_ehci_powerup_fixup; + else + usb_brg_adrdec_setup((void *)priv->hcd_base); + + hccr = (struct ehci_hccr *)(priv->hcd_base + 0x100); + hcor = (struct ehci_hcor *) + ((uintptr_t)hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + debug("ehci-marvell: init hccr %lx and hcor %lx hc_length %ld\n", + (uintptr_t)hccr, (uintptr_t)hcor, + (uintptr_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + return ehci_register(dev, hccr, hcor, &marvell_ehci_ops, 0, + USB_INIT_HOST); +} + +static const struct udevice_id ehci_usb_ids[] = { + { .compatible = "marvell,orion-ehci", }, + { .compatible = "marvell,armada3700-ehci", }, + { } +}; + +U_BOOT_DRIVER(ehci_mvebu) = { + .name = "ehci_mvebu", + .id = UCLASS_USB, + .of_match = ehci_usb_ids, + .probe = ehci_mvebu_probe, + .remove = ehci_deregister, + .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 + +static void usb_brg_adrdec_setup(int index) { int i; u32 size, base, attrib; @@ -60,13 +188,14 @@ static void usb_brg_adrdec_setup(void) size = gd->bd->bi_dram[i].size; base = gd->bd->bi_dram[i].start; if ((size) && (attrib)) - wrl(USB_WINDOW_CTRL(i), - MVCPU_WIN_CTRL_DATA(size, USB_TARGET_DRAM, - attrib, MVCPU_WIN_ENABLE)); + writel(MVCPU_WIN_CTRL_DATA(size, USB_TARGET_DRAM, + attrib, MVCPU_WIN_ENABLE), + MVUSB0_BASE + USB_WINDOW_CTRL(i)); else - wrl(USB_WINDOW_CTRL(i), MVCPU_WIN_DISABLE); + writel(MVCPU_WIN_DISABLE, + MVUSB0_BASE + USB_WINDOW_CTRL(i)); - wrl(USB_WINDOW_BASE(i), base); + writel(base, MVUSB0_BASE + USB_WINDOW_BASE(i)); } } @@ -77,9 +206,9 @@ static void usb_brg_adrdec_setup(void) int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr, struct ehci_hcor **hcor) { - usb_brg_adrdec_setup(); + usb_brg_adrdec_setup(index); - *hccr = (struct ehci_hccr *)(MVUSB0_BASE + 0x100); + *hccr = (struct ehci_hccr *)(MVUSB_BASE(index) + 0x100); *hcor = (struct ehci_hcor *)((uint32_t) *hccr + HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase))); @@ -98,3 +227,5 @@ int ehci_hcd_stop(int index) { return 0; } + +#endif /* CONFIG_DM_USB */