101 lines
2.1 KiB
C
101 lines
2.1 KiB
C
/*
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* (C) Copyright 2009
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* Marvell Semiconductor <www.marvell.com>
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* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <usb.h>
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#include "ehci.h"
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#include <asm/arch/cpu.h>
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#if defined(CONFIG_KIRKWOOD)
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#include <asm/arch/soc.h>
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#elif defined(CONFIG_ORION5X)
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#include <asm/arch/orion5x.h>
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#endif
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DECLARE_GLOBAL_DATA_PTR;
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#define rdl(off) readl(MVUSB0_BASE + (off))
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#define wrl(off, val) writel((val), MVUSB0_BASE + (off))
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#define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4))
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#define USB_WINDOW_BASE(i) (0x324 + ((i) << 4))
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#define USB_TARGET_DRAM 0x0
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/*
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* USB 2.0 Bridge Address Decoding registers setup
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*/
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static void usb_brg_adrdec_setup(void)
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{
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int i;
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u32 size, base, attrib;
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for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
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/* Enable DRAM bank */
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switch (i) {
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case 0:
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attrib = MVUSB0_CPU_ATTR_DRAM_CS0;
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break;
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case 1:
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attrib = MVUSB0_CPU_ATTR_DRAM_CS1;
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break;
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case 2:
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attrib = MVUSB0_CPU_ATTR_DRAM_CS2;
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break;
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case 3:
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attrib = MVUSB0_CPU_ATTR_DRAM_CS3;
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break;
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default:
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/* invalide bank, disable access */
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attrib = 0;
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break;
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}
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size = gd->bd->bi_dram[i].size;
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base = gd->bd->bi_dram[i].start;
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if ((size) && (attrib))
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wrl(USB_WINDOW_CTRL(i),
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MVCPU_WIN_CTRL_DATA(size, USB_TARGET_DRAM,
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attrib, MVCPU_WIN_ENABLE));
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else
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wrl(USB_WINDOW_CTRL(i), MVCPU_WIN_DISABLE);
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wrl(USB_WINDOW_BASE(i), base);
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}
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}
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/*
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* Create the appropriate control structures to manage
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* a new EHCI host controller.
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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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{
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usb_brg_adrdec_setup();
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*hccr = (struct ehci_hccr *)(MVUSB0_BASE + 0x100);
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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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debug("ehci-marvell: init hccr %x and hcor %x hc_length %d\n",
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(uint32_t)*hccr, (uint32_t)*hcor,
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(uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
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return 0;
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}
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/*
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* Destroy the appropriate control structures corresponding
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* the the EHCI host controller.
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*/
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int ehci_hcd_stop(int index)
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{
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return 0;
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}
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