2 * ULI M1575 setup code - specific to Freescale boards
4 * Copyright 2007 Freescale Semiconductor Inc.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
12 #include <linux/stddef.h>
13 #include <linux/kernel.h>
14 #include <linux/pci.h>
15 #include <linux/interrupt.h>
16 #include <linux/mc146818rtc.h>
18 #include <asm/system.h>
19 #include <asm/pci-bridge.h>
21 #define ULI_PIRQA 0x08
22 #define ULI_PIRQB 0x09
23 #define ULI_PIRQC 0x0a
24 #define ULI_PIRQD 0x0b
25 #define ULI_PIRQE 0x0c
26 #define ULI_PIRQF 0x0d
27 #define ULI_PIRQG 0x0e
29 #define ULI_8259_NONE 0x00
30 #define ULI_8259_IRQ1 0x08
31 #define ULI_8259_IRQ3 0x02
32 #define ULI_8259_IRQ4 0x04
33 #define ULI_8259_IRQ5 0x05
34 #define ULI_8259_IRQ6 0x07
35 #define ULI_8259_IRQ7 0x06
36 #define ULI_8259_IRQ9 0x01
37 #define ULI_8259_IRQ10 0x03
38 #define ULI_8259_IRQ11 0x09
39 #define ULI_8259_IRQ12 0x0b
40 #define ULI_8259_IRQ14 0x0d
41 #define ULI_8259_IRQ15 0x0f
43 u8 uli_pirq_to_irq[8] = {
44 ULI_8259_IRQ9, /* PIRQA */
45 ULI_8259_IRQ10, /* PIRQB */
46 ULI_8259_IRQ11, /* PIRQC */
47 ULI_8259_IRQ12, /* PIRQD */
48 ULI_8259_IRQ5, /* PIRQE */
49 ULI_8259_IRQ6, /* PIRQF */
50 ULI_8259_IRQ7, /* PIRQG */
51 ULI_8259_NONE, /* PIRQH */
55 static void __devinit early_uli5249(struct pci_dev *dev)
59 if (!machine_is(mpc86xx_hpcn) && !machine_is(mpc8544_ds) &&
60 !machine_is(mpc8572_ds))
63 pci_write_config_word(dev, PCI_COMMAND, PCI_COMMAND_IO |
64 PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
67 pci_read_config_byte(dev, 0x7c, &temp);
68 pci_write_config_byte(dev, 0x7c, 0x80);
70 /* set as P2P bridge */
71 pci_write_config_byte(dev, PCI_CLASS_PROG, 0x01);
75 pci_write_config_byte(dev, 0x7c, temp);
79 static void __devinit quirk_uli1575(struct pci_dev *dev)
83 if (!machine_is(mpc86xx_hpcn) && !machine_is(mpc8544_ds) &&
84 !machine_is(mpc8572_ds))
88 * ULI1575 interrupts route setup
91 /* ULI1575 IRQ mapping conf register maps PIRQx to IRQn */
92 for (i = 0; i < 4; i++) {
93 u8 val = uli_pirq_to_irq[i*2] | (uli_pirq_to_irq[i*2+1] << 4);
94 pci_write_config_byte(dev, 0x48 + i, val);
97 /* USB 1.1 OHCI controller 1: dev 28, func 0 - IRQ12 */
98 pci_write_config_byte(dev, 0x86, ULI_PIRQD);
100 /* USB 1.1 OHCI controller 2: dev 28, func 1 - IRQ9 */
101 pci_write_config_byte(dev, 0x87, ULI_PIRQA);
103 /* USB 1.1 OHCI controller 3: dev 28, func 2 - IRQ10 */
104 pci_write_config_byte(dev, 0x88, ULI_PIRQB);
106 /* Lan controller: dev 27, func 0 - IRQ6 */
107 pci_write_config_byte(dev, 0x89, ULI_PIRQF);
109 /* AC97 Audio controller: dev 29, func 0 - IRQ6 */
110 pci_write_config_byte(dev, 0x8a, ULI_PIRQF);
112 /* Modem controller: dev 29, func 1 - IRQ6 */
113 pci_write_config_byte(dev, 0x8b, ULI_PIRQF);
115 /* HD Audio controller: dev 29, func 2 - IRQ6 */
116 pci_write_config_byte(dev, 0x8c, ULI_PIRQF);
118 /* SATA controller: dev 31, func 1 - IRQ5 */
119 pci_write_config_byte(dev, 0x8d, ULI_PIRQE);
121 /* SMB interrupt: dev 30, func 1 - IRQ7 */
122 pci_write_config_byte(dev, 0x8e, ULI_PIRQG);
124 /* PMU ACPI SCI interrupt: dev 30, func 2 - IRQ7 */
125 pci_write_config_byte(dev, 0x8f, ULI_PIRQG);
127 /* USB 2.0 controller: dev 28, func 3 */
128 pci_write_config_byte(dev, 0x74, ULI_8259_IRQ11);
130 /* Primary PATA IDE IRQ: 14
131 * Secondary PATA IDE IRQ: 15
133 pci_write_config_byte(dev, 0x44, 0x30 | ULI_8259_IRQ14);
134 pci_write_config_byte(dev, 0x75, ULI_8259_IRQ15);
137 static void __devinit quirk_final_uli1575(struct pci_dev *dev)
139 /* Set i8259 interrupt trigger
152 if (!machine_is(mpc86xx_hpcn) && !machine_is(mpc8544_ds) &&
153 !machine_is(mpc8572_ds))
160 CMOS_WRITE(RTC_SET, RTC_CONTROL);
161 CMOS_WRITE(RTC_24H, RTC_CONTROL);
163 /* ensure month, date, and week alarm fields are ignored */
164 CMOS_WRITE(0, RTC_VALID);
167 outb_p(RTC_ALARM_DONT_CARE, 0x73);
170 outb_p(RTC_ALARM_DONT_CARE, 0x73);
174 static void __devinit quirk_uli5288(struct pci_dev *dev)
179 if (!machine_is(mpc86xx_hpcn) && !machine_is(mpc8544_ds) &&
180 !machine_is(mpc8572_ds))
183 /* read/write lock */
184 pci_read_config_byte(dev, 0x83, &c);
185 pci_write_config_byte(dev, 0x83, c|0x80);
187 pci_read_config_dword(dev, PCI_CLASS_REVISION, &d);
188 d = (d & 0xff) | (PCI_CLASS_STORAGE_SATA_AHCI << 8);
189 pci_write_config_dword(dev, PCI_CLASS_REVISION, d);
192 pci_write_config_byte(dev, 0x83, c);
194 /* disable emulated PATA mode enabled */
195 pci_read_config_byte(dev, 0x84, &c);
196 pci_write_config_byte(dev, 0x84, c & ~0x01);
200 static void __devinit quirk_uli5229(struct pci_dev *dev)
204 if (!machine_is(mpc86xx_hpcn) && !machine_is(mpc8544_ds) &&
205 !machine_is(mpc8572_ds))
208 pci_write_config_word(dev, PCI_COMMAND, PCI_COMMAND_INTX_DISABLE |
209 PCI_COMMAND_MASTER | PCI_COMMAND_IO);
211 /* Enable Native IRQ 14/15 */
212 pci_read_config_word(dev, 0x4a, &temp);
213 pci_write_config_word(dev, 0x4a, temp | 0x1000);
216 /* We have to do a dummy read on the P2P for the RTC to work, WTF */
217 static void __devinit quirk_final_uli5249(struct pci_dev *dev)
221 struct pci_bus *bus = dev->bus;
223 for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
224 if ((bus->resource[i]) &&
225 (bus->resource[i]->flags & IORESOURCE_MEM)) {
226 dummy = ioremap(bus->resource[i]->end - 3, 0x4);
236 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, 0x5249, early_uli5249);
237 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_uli1575);
238 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, quirk_uli5288);
239 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229);
240 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5249, quirk_final_uli5249);
241 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x1575, quirk_final_uli1575);
243 static void __devinit hpcd_quirk_uli1575(struct pci_dev *dev)
247 if (!machine_is(mpc86xx_hpcd))
251 pci_read_config_dword(dev, 0x48, &temp32);
252 pci_write_config_dword(dev, 0x48, (temp32 | 1<<26));
254 /* Enable sideband interrupt */
255 pci_read_config_dword(dev, 0x90, &temp32);
256 pci_write_config_dword(dev, 0x90, (temp32 | 1<<22));
259 static void __devinit hpcd_quirk_uli5288(struct pci_dev *dev)
264 if (!machine_is(mpc86xx_hpcd))
267 /* Interrupt Disable, Needed when SATA disabled */
268 pci_read_config_word(dev, PCI_COMMAND, &temp);
270 pci_write_config_word(dev, PCI_COMMAND, temp);
272 pci_read_config_byte(dev, 0x83, &c);
274 pci_write_config_byte(dev, 0x83, c);
276 pci_write_config_byte(dev, PCI_CLASS_PROG, 0x01);
277 pci_write_config_byte(dev, PCI_CLASS_DEVICE, 0x06);
279 pci_read_config_byte(dev, 0x83, &c);
281 pci_write_config_byte(dev, 0x83, c);
285 * Since 8259PIC was disabled on the board, the IDE device can not
286 * use the legacy IRQ, we need to let the IDE device work under
287 * native mode and use the interrupt line like other PCI devices.
288 * IRQ14 is a sideband interrupt from IDE device to CPU and we use this
289 * as the interrupt for IDE device.
291 static void __devinit hpcd_quirk_uli5229(struct pci_dev *dev)
295 if (!machine_is(mpc86xx_hpcd))
298 pci_read_config_byte(dev, 0x4b, &c);
300 pci_write_config_byte(dev, 0x4b, c);
304 * SATA interrupt pin bug fix
305 * There's a chip bug for 5288, The interrupt pin should be 2,
306 * not the read only value 1, So it use INTB#, not INTA# which
307 * actually used by the IDE device 5229.
308 * As of this bug, during the PCI initialization, 5288 read the
309 * irq of IDE device from the device tree, this function fix this
310 * bug by re-assigning a correct irq to 5288.
313 static void __devinit hpcd_final_uli5288(struct pci_dev *dev)
315 struct pci_controller *hose = pci_bus_to_host(dev->bus);
316 struct device_node *hosenode = hose ? hose->dn : NULL;
321 if (!machine_is(mpc86xx_hpcd))
327 laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
328 laddr[1] = laddr[2] = 0;
329 of_irq_map_raw(hosenode, &pin, 1, laddr, &oirq);
330 virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
335 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, hpcd_quirk_uli1575);
336 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, hpcd_quirk_uli5288);
337 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, hpcd_quirk_uli5229);
338 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5288, hpcd_final_uli5288);
340 int uli_exclude_device(struct pci_controller *hose,
341 u_char bus, u_char devfn)
343 if (bus == (hose->first_busno + 2)) {
344 /* exclude Modem controller */
345 if ((PCI_SLOT(devfn) == 29) && (PCI_FUNC(devfn) == 1))
346 return PCIBIOS_DEVICE_NOT_FOUND;
348 /* exclude HD Audio controller */
349 if ((PCI_SLOT(devfn) == 29) && (PCI_FUNC(devfn) == 2))
350 return PCIBIOS_DEVICE_NOT_FOUND;
353 return PCIBIOS_SUCCESSFUL;