1 /*
2 * (C) Copyright 2010
3 * Armando Visconti, ST Micoelectronics, <armando.visconti@st.com>.
4 *
5 * (C) Copyright 2009
6 * Marvell Semiconductor <www.marvell.com>
7 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
8 *
9 * SPDX-License-Identifier: GPL-2.0+
10 */
11
12 #include <common.h>
13 #include <asm/io.h>
14 #include <usb.h>
15 #include "ehci.h"
16 #include <asm/arch/hardware.h>
17 #include <asm/arch/spr_misc.h>
18
spear6xx_usbh_stop(void)19 static void spear6xx_usbh_stop(void)
20 {
21 struct misc_regs *const misc_p =
22 (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
23 u32 periph1_rst = readl(misc_p->periph1_rst);
24
25 periph1_rst |= PERIPH_USBH1 | PERIPH_USBH2;
26 writel(periph1_rst, misc_p->periph1_rst);
27
28 udelay(1000);
29 periph1_rst &= ~(PERIPH_USBH1 | PERIPH_USBH2);
30 writel(periph1_rst, misc_p->periph1_rst);
31 }
32
33 /*
34 * Create the appropriate control structures to manage
35 * a new EHCI host controller.
36 */
ehci_hcd_init(int index,enum usb_init_type init,struct ehci_hccr ** hccr,struct ehci_hcor ** hcor)37 int ehci_hcd_init(int index, enum usb_init_type init,
38 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
39 {
40 u32 ehci = 0;
41
42 switch (index) {
43 case 0:
44 ehci = CONFIG_SYS_UHC0_EHCI_BASE;
45 break;
46 case 1:
47 ehci = CONFIG_SYS_UHC1_EHCI_BASE;
48 break;
49 default:
50 printf("ERROR: wrong controller index!\n");
51 break;
52 };
53
54 *hccr = (struct ehci_hccr *)(ehci + 0x100);
55 *hcor = (struct ehci_hcor *)((uint32_t) *hccr +
56 HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
57
58 debug("SPEAr-ehci: init hccr %x and hcor %x hc_length %d\n",
59 (uint32_t)*hccr, (uint32_t)*hcor,
60 (uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
61
62 return 0;
63 }
64
65 /*
66 * Destroy the appropriate control structures corresponding
67 * the the EHCI host controller.
68 */
ehci_hcd_stop(int index)69 int ehci_hcd_stop(int index)
70 {
71 #if defined(CONFIG_SPEAR600)
72 spear6xx_usbh_stop();
73 #endif
74
75 return 0;
76 }
77