2 mini - a Free Software replacement for the Nintendo/BroadOn IOS.
5 Copyright (C) 2009 Bernhard Urban <lewurm@gmx.net>
6 Copyright (C) 2009 Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
8 # This code is licensed to you under the terms of the GNU GPL, version 2;
9 # see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
12 #include "bootmii_ppc.h"
16 #define gecko_printf printf
17 #define set32(address, flags) write32(address, read32(address) | flags)
18 #define dma_addr(address) virt_to_phys(address)
21 static struct ohci_hcca hcca_oh0;
23 static void dbg_op_state() {
24 switch (read32(OHCI0_HC_CONTROL) & OHCI_CTRL_HCFS) {
25 case OHCI_USB_SUSPEND:
26 gecko_printf("ohci-- OHCI_USB_SUSPEND\n");
29 gecko_printf("ohci-- OHCI_USB_RESET\n");
32 gecko_printf("ohci-- OHCI_USB_OPER\n");
35 gecko_printf("ohci-- OHCI_USB_RESUME\n");
41 gecko_printf("ohci-- init\n");
45 for(; i <= 0x200; i+=4) {
46 gecko_printf("0x0d050000 + %X: %X\n", i, read32(0x0d050000+i));
47 udelay(10000); //'cause usb gecko is lame
49 * see output in ohci.default
52 /* enable interrupts of both usb host controllers */
53 set32(EHCI_CTL, EHCI_CTL_OH0INTE | EHCI_CTL_OH1INTE | 0xe0000);
56 set32(OHCI0_HC_COMMAND_STATUS, OHCI_HCR);
60 while ((read32(OHCI0_HC_COMMAND_STATUS) & OHCI_HCR) != 0) {
62 gecko_printf("ohci-- FAILED");
68 /* disable interrupts; 2ms timelimit here!
69 now we're in the SUSPEND state ... must go OPERATIONAL
70 within 2msec else HC enters RESUME */
73 //u32 cookie = irq_kill();
75 _CPU_ISR_Disable(cookie);
78 /* Tell the controller where the control and bulk lists are
79 * The lists are empty now. */
80 write32(OHCI0_HC_CTRL_HEAD_ED, 0);
81 write32(OHCI0_HC_BULK_HEAD_ED, 0);
84 write32(OHCI0_HC_HCCA, dma_addr(&hcca_oh0));
86 /* set periodicstart */
88 u32 fmInterval = read32(OHCI0_HC_FM_INTERVAL) &0x3fff;
89 u32 fit = read32(OHCI0_HC_FM_INTERVAL) & FIT;
91 write32(OHCI0_HC_FM_INTERVAL, read32(OHCI0_HC_FM_INTERVAL) | (fit ^ FIT));
92 write32(OHCI0_HC_PERIODIC_START, ((9*fmInterval)/10)&0x3fff);
95 if ((read32(OHCI0_HC_FM_INTERVAL) & 0x3fff0000) == 0 || !read32(OHCI0_HC_PERIODIC_START)) {
96 gecko_printf("ohci-- w00t, fail!! see ohci-hcd.c:669\n");
99 /* start HC operations */
100 set32(OHCI0_HC_CONTROL, OHCI_CONTROL_INIT | OHCI_USB_OPER);
102 /* wake on ConnectStatusChange, matching external hubs */
103 set32(OHCI0_HC_RH_STATUS, RH_HS_DRWE);
105 /* Choose the interrupts we care about now, others later on demand */
106 write32(OHCI0_HC_INT_STATUS, ~0);
107 write32(OHCI0_HC_INT_ENABLE, OHCI_INTR_INIT);
110 //irq_restore(cookie);
111 _CPU_ISR_Restore(cookie);