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-rw-r--r--arch/ppc/platforms/pmac_feature.c216
1 files changed, 113 insertions, 103 deletions
diff --git a/arch/ppc/platforms/pmac_feature.c b/arch/ppc/platforms/pmac_feature.c
index 46cbf36722..867336ad5d 100644
--- a/arch/ppc/platforms/pmac_feature.c
+++ b/arch/ppc/platforms/pmac_feature.c
@@ -1590,6 +1590,114 @@ intrepid_shutdown(struct macio_chip* macio, int sleep_mode)
1590 mdelay(10); 1590 mdelay(10);
1591} 1591}
1592 1592
1593
1594void __pmac pmac_tweak_clock_spreading(int enable)
1595{
1596 struct macio_chip* macio = &macio_chips[0];
1597
1598 /* Hack for doing clock spreading on some machines PowerBooks and
1599 * iBooks. This implements the "platform-do-clockspreading" OF
1600 * property as decoded manually on various models. For safety, we also
1601 * check the product ID in the device-tree in cases we'll whack the i2c
1602 * chip to make reasonably sure we won't set wrong values in there
1603 *
1604 * Of course, ultimately, we have to implement a real parser for
1605 * the platform-do-* stuff...
1606 */
1607
1608 if (macio->type == macio_intrepid) {
1609 if (enable)
1610 UN_OUT(UNI_N_CLOCK_SPREADING, 2);
1611 else
1612 UN_OUT(UNI_N_CLOCK_SPREADING, 0);
1613 mdelay(40);
1614 }
1615
1616 while (machine_is_compatible("PowerBook5,2") ||
1617 machine_is_compatible("PowerBook5,3") ||
1618 machine_is_compatible("PowerBook6,2") ||
1619 machine_is_compatible("PowerBook6,3")) {
1620 struct device_node *ui2c = of_find_node_by_type(NULL, "i2c");
1621 struct device_node *dt = of_find_node_by_name(NULL, "device-tree");
1622 u8 buffer[9];
1623 u32 *productID;
1624 int i, rc, changed = 0;
1625
1626 if (dt == NULL)
1627 break;
1628 productID = (u32 *)get_property(dt, "pid#", NULL);
1629 if (productID == NULL)
1630 break;
1631 while(ui2c) {
1632 struct device_node *p = of_get_parent(ui2c);
1633 if (p && !strcmp(p->name, "uni-n"))
1634 break;
1635 ui2c = of_find_node_by_type(ui2c, "i2c");
1636 }
1637 if (ui2c == NULL)
1638 break;
1639 DBG("Trying to bump clock speed for PID: %08x...\n", *productID);
1640 rc = pmac_low_i2c_open(ui2c, 1);
1641 if (rc != 0)
1642 break;
1643 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
1644 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
1645 DBG("read result: %d,", rc);
1646 if (rc != 0) {
1647 pmac_low_i2c_close(ui2c);
1648 break;
1649 }
1650 for (i=0; i<9; i++)
1651 DBG(" %02x", buffer[i]);
1652 DBG("\n");
1653
1654 switch(*productID) {
1655 case 0x1182: /* AlBook 12" rev 2 */
1656 case 0x1183: /* iBook G4 12" */
1657 buffer[0] = (buffer[0] & 0x8f) | 0x70;
1658 buffer[2] = (buffer[2] & 0x7f) | 0x00;
1659 buffer[5] = (buffer[5] & 0x80) | 0x31;
1660 buffer[6] = (buffer[6] & 0x40) | 0xb0;
1661 buffer[7] = (buffer[7] & 0x00) | (enable ? 0xc0 : 0xba);
1662 buffer[8] = (buffer[8] & 0x00) | 0x30;
1663 changed = 1;
1664 break;
1665 case 0x3142: /* AlBook 15" (ATI M10) */
1666 case 0x3143: /* AlBook 17" (ATI M10) */
1667 buffer[0] = (buffer[0] & 0xaf) | 0x50;
1668 buffer[2] = (buffer[2] & 0x7f) | 0x00;
1669 buffer[5] = (buffer[5] & 0x80) | 0x31;
1670 buffer[6] = (buffer[6] & 0x40) | 0xb0;
1671 buffer[7] = (buffer[7] & 0x00) | (enable ? 0xd0 : 0xc0);
1672 buffer[8] = (buffer[8] & 0x00) | 0x30;
1673 changed = 1;
1674 break;
1675 default:
1676 DBG("i2c-hwclock: Machine model not handled\n");
1677 break;
1678 }
1679 if (!changed) {
1680 pmac_low_i2c_close(ui2c);
1681 break;
1682 }
1683 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_stdsub);
1684 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_write, 0x80, buffer, 9);
1685 DBG("write result: %d,", rc);
1686 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
1687 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
1688 DBG("read result: %d,", rc);
1689 if (rc != 0) {
1690 pmac_low_i2c_close(ui2c);
1691 break;
1692 }
1693 for (i=0; i<9; i++)
1694 DBG(" %02x", buffer[i]);
1695 pmac_low_i2c_close(ui2c);
1696 break;
1697 }
1698}
1699
1700
1593static int __pmac 1701static int __pmac
1594core99_sleep(void) 1702core99_sleep(void)
1595{ 1703{
@@ -1601,12 +1709,6 @@ core99_sleep(void)
1601 macio->type != macio_intrepid) 1709 macio->type != macio_intrepid)
1602 return -ENODEV; 1710 return -ENODEV;
1603 1711
1604 /* The device-tree contains that in the hwclock node */
1605 if (macio->type == macio_intrepid) {
1606 UN_OUT(UNI_N_CLOCK_SPREADING, 0);
1607 mdelay(40);
1608 }
1609
1610 /* We power off the wireless slot in case it was not done 1712 /* We power off the wireless slot in case it was not done
1611 * by the driver. We don't power it on automatically however 1713 * by the driver. We don't power it on automatically however
1612 */ 1714 */
@@ -1749,12 +1851,6 @@ core99_wake_up(void)
1749 UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl); 1851 UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1750 udelay(100); 1852 udelay(100);
1751 1853
1752 /* Restore clock spreading */
1753 if (macio->type == macio_intrepid) {
1754 UN_OUT(UNI_N_CLOCK_SPREADING, 2);
1755 mdelay(40);
1756 }
1757
1758 return 0; 1854 return 0;
1759} 1855}
1760 1856
@@ -2149,7 +2245,7 @@ static struct pmac_mb_def pmac_mb_defs[] __pmacdata = {
2149 }, 2245 },
2150 { "PowerBook1,1", "PowerBook 101 (Lombard)", 2246 { "PowerBook1,1", "PowerBook 101 (Lombard)",
2151 PMAC_TYPE_101_PBOOK, paddington_features, 2247 PMAC_TYPE_101_PBOOK, paddington_features,
2152 PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE 2248 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2153 }, 2249 },
2154 { "PowerBook2,1", "iBook (first generation)", 2250 { "PowerBook2,1", "iBook (first generation)",
2155 PMAC_TYPE_ORIG_IBOOK, core99_features, 2251 PMAC_TYPE_ORIG_IBOOK, core99_features,
@@ -2718,97 +2814,11 @@ set_initial_features(void)
2718 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N); 2814 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2719 } 2815 }
2720 2816
2721 /* Hack for bumping clock speed on the new PowerBooks and the 2817 /* Some machine models need the clock chip to be properly setup for
2722 * iBook G4. This implements the "platform-do-clockspreading" OF 2818 * clock spreading now. This should be a platform function but we
2723 * property. For safety, we also check the product ID in the 2819 * don't do these at the moment
2724 * device-tree to make reasonably sure we won't set wrong values
2725 * in the clock chip.
2726 *
2727 * Of course, ultimately, we have to implement a real parser for
2728 * the platform-do-* stuff...
2729 */ 2820 */
2730 while (machine_is_compatible("PowerBook5,2") || 2821 pmac_tweak_clock_spreading(1);
2731 machine_is_compatible("PowerBook5,3") ||
2732 machine_is_compatible("PowerBook6,2") ||
2733 machine_is_compatible("PowerBook6,3")) {
2734 struct device_node *ui2c = of_find_node_by_type(NULL, "i2c");
2735 struct device_node *dt = of_find_node_by_name(NULL, "device-tree");
2736 u8 buffer[9];
2737 u32 *productID;
2738 int i, rc, changed = 0;
2739
2740 if (dt == NULL)
2741 break;
2742 productID = (u32 *)get_property(dt, "pid#", NULL);
2743 if (productID == NULL)
2744 break;
2745 while(ui2c) {
2746 struct device_node *p = of_get_parent(ui2c);
2747 if (p && !strcmp(p->name, "uni-n"))
2748 break;
2749 ui2c = of_find_node_by_type(ui2c, "i2c");
2750 }
2751 if (ui2c == NULL)
2752 break;
2753 DBG("Trying to bump clock speed for PID: %08x...\n", *productID);
2754 rc = pmac_low_i2c_open(ui2c, 1);
2755 if (rc != 0)
2756 break;
2757 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
2758 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
2759 DBG("read result: %d,", rc);
2760 if (rc != 0) {
2761 pmac_low_i2c_close(ui2c);
2762 break;
2763 }
2764 for (i=0; i<9; i++)
2765 DBG(" %02x", buffer[i]);
2766 DBG("\n");
2767
2768 switch(*productID) {
2769 case 0x1182: /* AlBook 12" rev 2 */
2770 case 0x1183: /* iBook G4 12" */
2771 buffer[0] = (buffer[0] & 0x8f) | 0x70;
2772 buffer[2] = (buffer[2] & 0x7f) | 0x00;
2773 buffer[5] = (buffer[5] & 0x80) | 0x31;
2774 buffer[6] = (buffer[6] & 0x40) | 0xb0;
2775 buffer[7] = (buffer[7] & 0x00) | 0xc0;
2776 buffer[8] = (buffer[8] & 0x00) | 0x30;
2777 changed = 1;
2778 break;
2779 case 0x3142: /* AlBook 15" (ATI M10) */
2780 case 0x3143: /* AlBook 17" (ATI M10) */
2781 buffer[0] = (buffer[0] & 0xaf) | 0x50;
2782 buffer[2] = (buffer[2] & 0x7f) | 0x00;
2783 buffer[5] = (buffer[5] & 0x80) | 0x31;
2784 buffer[6] = (buffer[6] & 0x40) | 0xb0;
2785 buffer[7] = (buffer[7] & 0x00) | 0xd0;
2786 buffer[8] = (buffer[8] & 0x00) | 0x30;
2787 changed = 1;
2788 break;
2789 default:
2790 DBG("i2c-hwclock: Machine model not handled\n");
2791 break;
2792 }
2793 if (!changed) {
2794 pmac_low_i2c_close(ui2c);
2795 break;
2796 }
2797 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_stdsub);
2798 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_write, 0x80, buffer, 9);
2799 DBG("write result: %d,", rc);
2800 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
2801 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
2802 DBG("read result: %d,", rc);
2803 if (rc != 0) {
2804 pmac_low_i2c_close(ui2c);
2805 break;
2806 }
2807 for (i=0; i<9; i++)
2808 DBG(" %02x", buffer[i]);
2809 pmac_low_i2c_close(ui2c);
2810 break;
2811 }
2812 2822
2813#endif /* CONFIG_POWER4 */ 2823#endif /* CONFIG_POWER4 */
2814 2824
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-03 19:04:28 -0400