mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
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*
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* Original Author Guenter Gebhardt
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* Copyright (C) 2006 Micronas GmbH
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*/
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#include <common.h>
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#include "vct.h"
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int vct_ehci_hcd_init(u32 *hccr, u32 *hcor)
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{
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int retval;
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u32 val;
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u32 addr;
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dcgu_set_reset_switch(DCGU_HW_MODULE_USB_24, DCGU_SWITCH_ON);
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dcgu_set_reset_switch(DCGU_HW_MODULE_USB_60, DCGU_SWITCH_ON);
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dcgu_set_clk_switch(DCGU_HW_MODULE_USB_24, DCGU_SWITCH_ON);
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dcgu_set_clk_switch(DCGU_HW_MODULE_USB_PLL, DCGU_SWITCH_ON);
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dcgu_set_reset_switch(DCGU_HW_MODULE_USB_24, DCGU_SWITCH_OFF);
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/* Wait until (DCGU_USBPHY_STAT == 7) */
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addr = DCGU_USBPHY_STAT(DCGU_BASE);
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val = reg_read(addr);
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while (val != 7)
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val = reg_read(addr);
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dcgu_set_clk_switch(DCGU_HW_MODULE_USB_60, DCGU_SWITCH_ON);
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dcgu_set_reset_switch(DCGU_HW_MODULE_USB_60, DCGU_SWITCH_OFF);
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retval = scc_reset(SCC_USB_RW, 0);
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if (retval) {
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printf("scc_reset(SCC_USB_RW, 0) returned: 0x%x\n", retval);
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return retval;
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} else {
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retval = scc_reset(SCC_CPU1_SPDMA_RW, 0);
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if (retval) {
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printf("scc_reset(SCC_CPU1_SPDMA_RW, 0) returned: 0x%x\n",
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retval);
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return retval;
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}
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}
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if (!retval) {
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/*
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* For the AGU bypass, where the SCC client provides full
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* physical address
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*/
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scc_set_usb_address_generation_mode(1);
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scc_setup_dma(SCC_USB_RW, BCU_USB_BUFFER_1, DMA_LINEAR,
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USE_NO_FH, DMA_READ, 0);
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scc_setup_dma(SCC_CPU1_SPDMA_RW, BCU_USB_BUFFER_1, DMA_LINEAR,
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USE_NO_FH, DMA_WRITE, 0);
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scc_setup_dma(SCC_USB_RW, BCU_USB_BUFFER_0, DMA_LINEAR,
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USE_NO_FH, DMA_WRITE, 0);
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scc_setup_dma(SCC_CPU1_SPDMA_RW, BCU_USB_BUFFER_0, DMA_LINEAR,
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USE_NO_FH, DMA_READ, 0);
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/* Enable memory interface */
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scc_enable(SCC_USB_RW, 1);
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/* Start (start_cmd=0) DMAs */
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scc_dma_cmd(SCC_USB_RW, DMA_START, 0, DMA_READ);
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scc_dma_cmd(SCC_USB_RW, DMA_START, 0, DMA_WRITE);
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} else {
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printf("Cannot configure USB memory channel.\n");
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printf("USB can not access RAM. SCC configuration failed.\n");
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return retval;
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}
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/* Wait a short while */
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udelay(300000);
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reg_write(USBH_BURSTSIZE(USBH_BASE), 0x00001c1c);
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/* Set EHCI structures and DATA in RAM */
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reg_write(USBH_USBHMISC(USBH_BASE), 0x00840003);
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/* Set USBMODE to bigendian and set host mode */
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reg_write(USBH_USBMODE(USBH_BASE), 0x00000007);
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/*
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* USBH_BURSTSIZE MUST EQUAL 0x00001c1c in order for
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* 512 byte USB transfers on the bulk pipe to work properly.
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* Set USBH_BURSTSIZE to 0x00001c1c
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*/
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reg_write(USBH_BURSTSIZE(USBH_BASE), 0x00001c1c);
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/* Insert access register addresses */
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*hccr = REG_GLOBAL_START_ADDR + USBH_CAPLENGTH(USBH_BASE);
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*hcor = REG_GLOBAL_START_ADDR + USBH_USBCMD(USBH_BASE);
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return 0;
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}
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