/*
- mini - a Free Software replacement for the Nintendo/BroadOn IOS.
+ ppcskel - a Free Software replacement for the Nintendo/BroadOn bootloader.
ohci hardware support
Copyright (C) 2009 Bernhard Urban <lewurm@gmx.net>
*/
#include "bootmii_ppc.h"
+#include "hollywood.h"
#include "ohci.h"
#include "irq.h"
-
-#define gecko_printf printf
-#define set32(address, flags) write32(address, read32(address) | flags)
-#define dma_addr(address) (u32)address
-
+#include "string.h"
static struct ohci_hcca hcca_oh0;
-static void dbg_op_state() {
- switch (read32(OHCI0_HC_CONTROL) & OHCI_CTRL_HCFS) {
- case OHCI_USB_SUSPEND:
- gecko_printf("ohci-- OHCI_USB_SUSPEND\n");
- break;
- case OHCI_USB_RESET:
- gecko_printf("ohci-- OHCI_USB_RESET\n");
- break;
- case OHCI_USB_OPER:
- gecko_printf("ohci-- OHCI_USB_OPER\n");
- break;
- case OHCI_USB_RESUME:
- gecko_printf("ohci-- OHCI_USB_RESUME\n");
- break;
- }
+static void dbg_op_state()
+{
+ switch (read32(OHCI0_HC_CONTROL) & OHCI_CTRL_HCFS) {
+ case OHCI_USB_SUSPEND:
+ printf("ohci-- OHCI_USB_SUSPEND\n");
+ break;
+ case OHCI_USB_RESET:
+ printf("ohci-- OHCI_USB_RESET\n");
+ break;
+ case OHCI_USB_OPER:
+ printf("ohci-- OHCI_USB_OPER\n");
+ break;
+ case OHCI_USB_RESUME:
+ printf("ohci-- OHCI_USB_RESUME\n");
+ break;
+ }
}
-void ohci_init() {
- gecko_printf("ohci-- init\n");
- dbg_op_state();
- /*
- u32 i = 0;
- for(; i <= 0x200; i+=4) {
- gecko_printf("0x0d050000 + %X: %X\n", i, read32(0x0d050000+i));
- udelay(10000); //'cause usb gecko is lame
- }
- * see output in ohci.default
- */
-
- /* enable interrupts of both usb host controllers */
- set32(EHCI_CTL, EHCI_CTL_OH0INTE | EHCI_CTL_OH1INTE | 0xe0000);
-
- /* reset HC */
- set32(OHCI0_HC_COMMAND_STATUS, OHCI_HCR);
-
- /* wait max. 30us */
- u32 ts = 30;
- while ((read32(OHCI0_HC_COMMAND_STATUS) & OHCI_HCR) != 0) {
- if(--ts == 0) {
- gecko_printf("ohci-- FAILED");
- return;
- }
- udelay(1);
- }
-
- /* disable interrupts; 2ms timelimit here!
- now we're in the SUSPEND state ... must go OPERATIONAL
- within 2msec else HC enters RESUME */
-
-
- //u32 cookie = irq_kill();
- u32 cookie;
- _CPU_ISR_Disable(cookie);
-
-
- /* Tell the controller where the control and bulk lists are
- * The lists are empty now. */
- write32(OHCI0_HC_CTRL_HEAD_ED, 0);
- write32(OHCI0_HC_BULK_HEAD_ED, 0);
-
- /* set hcca adress */
- write32(OHCI0_HC_HCCA, dma_addr(&hcca_oh0));
-
- /* set periodicstart */
+void ohci_init()
+{
+ printf("ohci-- init\n");
+ dbg_op_state();
+
+ /* disable hc interrupts */
+ set32(OHCI0_HC_INT_DISABLE, OHCI_INTR_MIE);
+
+ /* save fmInterval and calculate FSMPS */
+#define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7))
+#define FI 0x2edf /* 12000 bits per frame (-1) */
+ u32 fmint = read32(OHCI0_HC_FM_INTERVAL) & 0x3fff;
+ if(fmint != FI)
+ printf("ohci-- fminterval delta: %d\n", fmint - FI);
+ fmint |= FSMP (fmint) << 16;
+
+ /* enable interrupts of both usb host controllers */
+ set32(EHCI_CTL, EHCI_CTL_OH0INTE | EHCI_CTL_OH1INTE | 0xe0000);
+
+ /* reset HC */
+ write32(OHCI0_HC_COMMAND_STATUS, OHCI_HCR);
+
+ /* wait max. 30us */
+ u32 ts = 30;
+ while ((read32(OHCI0_HC_COMMAND_STATUS) & OHCI_HCR) != 0) {
+ if(--ts == 0) {
+ printf("ohci-- FAILED");
+ return;
+ }
+ udelay(1);
+ }
+
+ /* disable interrupts; 2ms timelimit here!
+ now we're in the SUSPEND state ... must go OPERATIONAL
+ within 2msec else HC enters RESUME */
+
+ u32 cookie = irq_kill();
+
+ /* Tell the controller where the control and bulk lists are
+ * The lists are empty now. */
+ write32(OHCI0_HC_CTRL_HEAD_ED, 0);
+ write32(OHCI0_HC_BULK_HEAD_ED, 0);
+
+ /* set hcca adress */
+ sync_after_write(&hcca_oh0, 256);
+ write32(OHCI0_HC_HCCA, virt_to_phys(&hcca_oh0));
+
+ /* set periodicstart */
#define FIT (1<<31)
- u32 fmInterval = read32(OHCI0_HC_FM_INTERVAL) &0x3fff;
- u32 fit = read32(OHCI0_HC_FM_INTERVAL) & FIT;
-
- write32(OHCI0_HC_FM_INTERVAL, read32(OHCI0_HC_FM_INTERVAL) | (fit ^ FIT));
- write32(OHCI0_HC_PERIODIC_START, ((9*fmInterval)/10)&0x3fff);
+ u32 fmInterval = read32(OHCI0_HC_FM_INTERVAL) &0x3fff;
+ u32 fit = read32(OHCI0_HC_FM_INTERVAL) & FIT;
- /* testing bla */
- if ((read32(OHCI0_HC_FM_INTERVAL) & 0x3fff0000) == 0 || !read32(OHCI0_HC_PERIODIC_START)) {
- gecko_printf("ohci-- w00t, fail!! see ohci-hcd.c:669\n");
- }
-
- /* start HC operations */
- set32(OHCI0_HC_CONTROL, OHCI_CONTROL_INIT | OHCI_USB_OPER);
+ write32(OHCI0_HC_FM_INTERVAL, fmint | (fit ^ FIT));
+ write32(OHCI0_HC_PERIODIC_START, ((9*fmInterval)/10)&0x3fff);
- /* wake on ConnectStatusChange, matching external hubs */
- set32(OHCI0_HC_RH_STATUS, RH_HS_DRWE);
+ /* testing bla */
+ if ((read32(OHCI0_HC_FM_INTERVAL) & 0x3fff0000) == 0 || !read32(OHCI0_HC_PERIODIC_START)) {
+ printf("ohci-- w00t, fail!! see ohci-hcd.c:669\n");
+ }
+
+ /* start HC operations */
+ write32(OHCI0_HC_CONTROL, OHCI_CONTROL_INIT | OHCI_USB_OPER);
- /* Choose the interrupts we care about now, others later on demand */
- write32(OHCI0_HC_INT_STATUS, ~0);
- write32(OHCI0_HC_INT_ENABLE, OHCI_INTR_INIT);
+ /* wake on ConnectStatusChange, matching external hubs */
+ set32(OHCI0_HC_RH_STATUS, RH_HS_DRWE);
+ /* Choose the interrupts we care about now, others later on demand */
+ write32(OHCI0_HC_INT_STATUS, ~0);
+ write32(OHCI0_HC_INT_ENABLE, OHCI_INTR_INIT);
- //irq_restore(cookie);
- _CPU_ISR_Restore(cookie);
+ irq_restore(cookie);
+ dbg_op_state();
+}
- dbg_op_state();
-
+void ohci0_irq()
+{
+ write32(OHCI0_HC_INT_STATUS, ~0);
+ printf("ohci_irq\n");
}