X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fusb%2Fmusb-new%2Fsunxi.c;h=3081afca0e28befb2ccb50ee41dfc238de18a8ab;hb=eb6b50f631628f48b7e72432ae878e6ff0e306c3;hp=052e0657d03d22261f9951a13c9295cc119c395b;hpb=998b8ab3f61ba3a907a5694cedf81f4cf10b0b5a;p=oweals%2Fu-boot.git diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index 052e0657d0..3081afca0e 100644 --- a/drivers/usb/musb-new/sunxi.c +++ b/drivers/usb/musb-new/sunxi.c @@ -14,11 +14,7 @@ * * This file is part of the Inventra Controller Driver for Linux. * - * The Inventra Controller Driver for Linux is free software; you - * can redistribute it and/or modify it under the terms of the GNU - * General Public License version 2 as published by the Free Software - * Foundation. - * + * SPDX-License-Identifier: GPL-2.0 */ #include #include @@ -26,17 +22,12 @@ #include #include #include +#include +#include +#include #include "linux-compat.h" #include "musb_core.h" -#ifdef CONFIG_AXP152_POWER -#include -#endif -#ifdef CONFIG_AXP209_POWER -#include -#endif -#ifdef CONFIG_AXP221_POWER -#include -#endif +#include "musb_uboot.h" /****************************************************************************** ****************************************************************************** @@ -170,6 +161,17 @@ static void USBC_ConfigFIFO_Base(void) writel(reg_value, SUNXI_SRAMC_BASE + 0x04); } +/****************************************************************************** + * Needed for the DFU polling magic + ******************************************************************************/ + +static u8 last_int_usb; + +bool dfu_usb_get_reset(void) +{ + return !!(last_int_usb & MUSB_INTR_RESET); +} + /****************************************************************************** * MUSB Glue code ******************************************************************************/ @@ -181,6 +183,7 @@ static irqreturn_t sunxi_musb_interrupt(int irq, void *__hci) /* read and flush interrupts */ musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); + last_int_usb = musb->int_usb; if (musb->int_usb) musb_writeb(musb->mregs, MUSB_INTRUSB, musb->int_usb); musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); @@ -198,23 +201,48 @@ static irqreturn_t sunxi_musb_interrupt(int irq, void *__hci) /* musb_core does not call enable / disable in a balanced manner */ static bool enabled = false; +static struct musb *sunxi_musb; -static void sunxi_musb_enable(struct musb *musb) +static int sunxi_musb_enable(struct musb *musb) { pr_debug("%s():\n", __func__); + musb_ep_select(musb->mregs, 0); + musb_writeb(musb->mregs, MUSB_FADDR, 0); + if (enabled) - return; + return 0; /* select PIO mode */ musb_writeb(musb->mregs, USBC_REG_o_VEND0, 0); - if (is_host_enabled(musb)) - sunxi_usb_phy_power_on(0); /* port power on */ + if (is_host_enabled(musb)) { + int id = sunxi_usb_phy_id_detect(0); + + if (id == 1 && sunxi_usb_phy_power_is_on(0)) + sunxi_usb_phy_power_off(0); + + if (!sunxi_usb_phy_power_is_on(0)) { + int vbus = sunxi_usb_phy_vbus_detect(0); + if (vbus == 1) { + printf("A charger is plugged into the OTG: "); + return -ENODEV; + } + } + + if (id == 1) { + printf("No host cable detected: "); + return -ENODEV; + } + + if (!sunxi_usb_phy_power_is_on(0)) + sunxi_usb_phy_power_on(0); + } USBC_ForceVbusValidToHigh(musb->mregs); enabled = true; + return 0; } static void sunxi_musb_disable(struct musb *musb) @@ -224,9 +252,6 @@ static void sunxi_musb_disable(struct musb *musb) if (!enabled) return; - if (is_host_enabled(musb)) - sunxi_usb_phy_power_off(0); /* port power off */ - USBC_ForceVbusValidToLow(musb->mregs); mdelay(200); /* Wait for the current session to timeout */ @@ -236,18 +261,9 @@ static void sunxi_musb_disable(struct musb *musb) static int sunxi_musb_init(struct musb *musb) { struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - int err; pr_debug("%s():\n", __func__); - if (is_host_enabled(musb)) { - err = sunxi_usb_phy_vbus_detect(0); - if (err) { - eprintf("Error: A charger is plugged into the OTG\n"); - return -EIO; - } - } - musb->isr = sunxi_musb_interrupt; setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0); @@ -272,8 +288,88 @@ static int sunxi_musb_init(struct musb *musb) return 0; } -const struct musb_platform_ops sunxi_musb_ops = { +static const struct musb_platform_ops sunxi_musb_ops = { .init = sunxi_musb_init, .enable = sunxi_musb_enable, .disable = sunxi_musb_disable, }; + +static struct musb_hdrc_config musb_config = { + .multipoint = 1, + .dyn_fifo = 1, + .num_eps = 6, + .ram_bits = 11, +}; + +static struct musb_hdrc_platform_data musb_plat = { +#if defined(CONFIG_USB_MUSB_HOST) + .mode = MUSB_HOST, +#else + .mode = MUSB_PERIPHERAL, +#endif + .config = &musb_config, + .power = 250, + .platform_ops = &sunxi_musb_ops, +}; + +#ifdef CONFIG_USB_MUSB_HOST +int musb_usb_probe(struct udevice *dev) +{ + struct musb_host_data *host = dev_get_priv(dev); + struct usb_bus_priv *priv = dev_get_uclass_priv(dev); + int ret; + + priv->desc_before_addr = true; + + if (!sunxi_musb) { + sunxi_musb = musb_init_controller(&musb_plat, NULL, + (void *)SUNXI_USB0_BASE); + } + + host->host = sunxi_musb; + if (!host->host) + return -EIO; + + ret = musb_lowlevel_init(host); + if (ret == 0) + printf("MUSB OTG\n"); + + return ret; +} + +int musb_usb_remove(struct udevice *dev) +{ + struct musb_host_data *host = dev_get_priv(dev); + + musb_stop(host->host); + + return 0; +} + +U_BOOT_DRIVER(usb_musb) = { + .name = "sunxi-musb", + .id = UCLASS_USB, + .probe = musb_usb_probe, + .remove = musb_usb_remove, + .ops = &musb_usb_ops, + .platdata_auto_alloc_size = sizeof(struct usb_platdata), + .priv_auto_alloc_size = sizeof(struct musb_host_data), +}; +#endif + +void sunxi_musb_board_init(void) +{ +#ifdef CONFIG_USB_MUSB_HOST + struct udevice *dev; + + /* + * Bind the driver directly for now as musb linux kernel support is + * still pending upstream so our dts files do not have the necessary + * nodes yet. TODO: Remove this as soon as the dts nodes are in place + * and bind by compatible instead. + */ + device_bind_driver(dm_root(), "sunxi-musb", "sunxi-musb", &dev); +#else + musb_register(&musb_plat, NULL, (void *)SUNXI_USB0_BASE); +#endif +}