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