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 dma_addr(address) virt_to_phys(address)
20 static struct ohci_hcca hcca_oh0;
22 static void dbg_op_state() {
23 switch (read32(OHCI0_HC_CONTROL) & OHCI_CTRL_HCFS) {
24 case OHCI_USB_SUSPEND:
25 gecko_printf("ohci-- OHCI_USB_SUSPEND\n");
28 gecko_printf("ohci-- OHCI_USB_RESET\n");
31 gecko_printf("ohci-- OHCI_USB_OPER\n");
34 gecko_printf("ohci-- OHCI_USB_RESUME\n");
40 gecko_printf("ohci-- init\n");
44 for(; i <= 0x200; i+=4) {
45 gecko_printf("0x0d050000 + %X: %X\n", i, read32(0x0d050000+i));
46 udelay(10000); //'cause usb gecko is lame
48 * see output in ohci.default
51 /* disable hc interrupts */
52 set32(OHCI0_HC_INT_DISABLE, OHCI_INTR_MIE);
54 /* save fmInterval and calculate FSMPS */
55 #define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7))
56 #define FI 0x2edf /* 12000 bits per frame (-1) */
57 u32 fmint = read32(OHCI0_HC_FM_INTERVAL) & 0x3fff;
59 gecko_printf("ohci-- fminterval delta: %d\n", fmint - FI);
60 fmint |= FSMP (fmint) << 16;
62 /* enable interrupts of both usb host controllers */
63 set32(EHCI_CTL, EHCI_CTL_OH0INTE | EHCI_CTL_OH1INTE | 0xe0000);
66 set32(OHCI0_HC_COMMAND_STATUS, OHCI_HCR);
70 while ((read32(OHCI0_HC_COMMAND_STATUS) & OHCI_HCR) != 0) {
72 gecko_printf("ohci-- FAILED");
78 /* disable interrupts; 2ms timelimit here!
79 now we're in the SUSPEND state ... must go OPERATIONAL
80 within 2msec else HC enters RESUME */
83 u32 cookie = irq_kill();
85 /* Tell the controller where the control and bulk lists are
86 * The lists are empty now. */
87 write32(OHCI0_HC_CTRL_HEAD_ED, 0);
88 write32(OHCI0_HC_BULK_HEAD_ED, 0);
91 write32(OHCI0_HC_HCCA, dma_addr(&hcca_oh0));
93 /* set periodicstart */
95 u32 fmInterval = read32(OHCI0_HC_FM_INTERVAL) &0x3fff;
96 printf("OHCI0_HC_FMINTERVAL: %08X OCHI0_HC_FMINTERVAL&0x3fff: %08X\n", read32(OHCI0_HC_FM_INTERVAL), fmInterval);
97 u32 fit = read32(OHCI0_HC_FM_INTERVAL) & FIT;
99 write32(OHCI0_HC_FM_INTERVAL, fmint | (fit ^ FIT));
100 write32(OHCI0_HC_PERIODIC_START, ((9*fmInterval)/10)&0x3fff);
103 if ((read32(OHCI0_HC_FM_INTERVAL) & 0x3fff0000) == 0 || !read32(OHCI0_HC_PERIODIC_START)) {
104 gecko_printf("ohci-- w00t, fail!! see ohci-hcd.c:669\n");
107 /* start HC operations */
108 set32(OHCI0_HC_CONTROL, OHCI_CONTROL_INIT | OHCI_USB_OPER);
110 /* wake on ConnectStatusChange, matching external hubs */
111 set32(OHCI0_HC_RH_STATUS, RH_HS_DRWE);
113 /* Choose the interrupts we care about now, others later on demand */
114 write32(OHCI0_HC_INT_STATUS, ~0);
115 write32(OHCI0_HC_INT_ENABLE, OHCI_INTR_INIT);
124 gecko_printf("ohci_irq\n");
125 write32(OHCI0_HC_INT_STATUS, ~0);