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Diffstat (limited to 'arch/powerpc/platforms/fsl_uli1575.c')
-rw-r--r--arch/powerpc/platforms/fsl_uli1575.c142
1 files changed, 124 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index afc9141be63..b97f6f3d3c5 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -15,7 +15,6 @@
#include <linux/interrupt.h>
#include <linux/mc146818rtc.h>
-#include <asm/system.h>
#include <asm/pci-bridge.h>
#define ULI_PIRQA 0x08
@@ -51,15 +50,20 @@ u8 uli_pirq_to_irq[8] = {
ULI_8259_NONE, /* PIRQH */
};
-/* set in board code if you want this quirks to do something */
-int uses_fsl_uli_m1575;
+static inline bool is_quirk_valid(void)
+{
+ return (machine_is(mpc86xx_hpcn) ||
+ machine_is(mpc8544_ds) ||
+ machine_is(p2020_ds) ||
+ machine_is(mpc8572_ds));
+}
/* Bridge */
-static void __devinit early_uli5249(struct pci_dev *dev)
+static void early_uli5249(struct pci_dev *dev)
{
unsigned char temp;
- if (!uses_fsl_uli_m1575)
+ if (!is_quirk_valid())
return;
pci_write_config_word(dev, PCI_COMMAND, PCI_COMMAND_IO |
@@ -78,11 +82,11 @@ static void __devinit early_uli5249(struct pci_dev *dev)
}
-static void __devinit quirk_uli1575(struct pci_dev *dev)
+static void quirk_uli1575(struct pci_dev *dev)
{
int i;
- if (!uses_fsl_uli_m1575)
+ if (!is_quirk_valid())
return;
/*
@@ -135,7 +139,7 @@ static void __devinit quirk_uli1575(struct pci_dev *dev)
pci_write_config_byte(dev, 0x75, ULI_8259_IRQ15);
}
-static void __devinit quirk_final_uli1575(struct pci_dev *dev)
+static void quirk_final_uli1575(struct pci_dev *dev)
{
/* Set i8259 interrupt trigger
* IRQ 3: Level
@@ -150,7 +154,7 @@ static void __devinit quirk_final_uli1575(struct pci_dev *dev)
* IRQ 14: Edge
* IRQ 15: Edge
*/
- if (!uses_fsl_uli_m1575)
+ if (!is_quirk_valid())
return;
outb(0xfa, 0x4d0);
@@ -171,12 +175,12 @@ static void __devinit quirk_final_uli1575(struct pci_dev *dev)
}
/* SATA */
-static void __devinit quirk_uli5288(struct pci_dev *dev)
+static void quirk_uli5288(struct pci_dev *dev)
{
unsigned char c;
unsigned int d;
- if (!uses_fsl_uli_m1575)
+ if (!is_quirk_valid())
return;
/* read/write lock */
@@ -196,11 +200,11 @@ static void __devinit quirk_uli5288(struct pci_dev *dev)
}
/* PATA */
-static void __devinit quirk_uli5229(struct pci_dev *dev)
+static void quirk_uli5229(struct pci_dev *dev)
{
unsigned short temp;
- if (!uses_fsl_uli_m1575)
+ if (!is_quirk_valid())
return;
pci_write_config_word(dev, PCI_COMMAND, PCI_COMMAND_INTX_DISABLE |
@@ -212,16 +216,26 @@ static void __devinit quirk_uli5229(struct pci_dev *dev)
}
/* We have to do a dummy read on the P2P for the RTC to work, WTF */
-static void __devinit quirk_final_uli5249(struct pci_dev *dev)
+static void quirk_final_uli5249(struct pci_dev *dev)
{
int i;
u8 *dummy;
struct pci_bus *bus = dev->bus;
+ struct resource *res;
+ resource_size_t end = 0;
+
+ for (i = PCI_BRIDGE_RESOURCES; i < PCI_BRIDGE_RESOURCES+3; i++) {
+ unsigned long flags = pci_resource_flags(dev, i);
+ if ((flags & (IORESOURCE_MEM|IORESOURCE_PREFETCH)) == IORESOURCE_MEM)
+ end = pci_resource_end(dev, i);
+ }
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
- if ((bus->resource[i]) &&
- (bus->resource[i]->flags & IORESOURCE_MEM)) {
- dummy = ioremap(bus->resource[i]->start, 0x4);
+ pci_bus_for_each_resource(bus, res, i) {
+ if (res && res->flags & IORESOURCE_MEM) {
+ if (res->end == end)
+ dummy = ioremap(res->start, 0x4);
+ else
+ dummy = ioremap(res->end - 3, 0x4);
if (dummy) {
in_8(dummy);
iounmap(dummy);
@@ -237,6 +251,98 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, quirk_uli5288);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5249, quirk_final_uli5249);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x1575, quirk_final_uli1575);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229);
+
+static void hpcd_quirk_uli1575(struct pci_dev *dev)
+{
+ u32 temp32;
+
+ if (!machine_is(mpc86xx_hpcd))
+ return;
+
+ /* Disable INTx */
+ pci_read_config_dword(dev, 0x48, &temp32);
+ pci_write_config_dword(dev, 0x48, (temp32 | 1<<26));
+
+ /* Enable sideband interrupt */
+ pci_read_config_dword(dev, 0x90, &temp32);
+ pci_write_config_dword(dev, 0x90, (temp32 | 1<<22));
+}
+
+static void hpcd_quirk_uli5288(struct pci_dev *dev)
+{
+ unsigned char c;
+
+ if (!machine_is(mpc86xx_hpcd))
+ return;
+
+ pci_read_config_byte(dev, 0x83, &c);
+ c |= 0x80;
+ pci_write_config_byte(dev, 0x83, c);
+
+ pci_write_config_byte(dev, PCI_CLASS_PROG, 0x01);
+ pci_write_config_byte(dev, PCI_CLASS_DEVICE, 0x06);
+
+ pci_read_config_byte(dev, 0x83, &c);
+ c &= 0x7f;
+ pci_write_config_byte(dev, 0x83, c);
+}
+
+/*
+ * Since 8259PIC was disabled on the board, the IDE device can not
+ * use the legacy IRQ, we need to let the IDE device work under
+ * native mode and use the interrupt line like other PCI devices.
+ * IRQ14 is a sideband interrupt from IDE device to CPU and we use this
+ * as the interrupt for IDE device.
+ */
+static void hpcd_quirk_uli5229(struct pci_dev *dev)
+{
+ unsigned char c;
+
+ if (!machine_is(mpc86xx_hpcd))
+ return;
+
+ pci_read_config_byte(dev, 0x4b, &c);
+ c |= 0x10;
+ pci_write_config_byte(dev, 0x4b, c);
+}
+
+/*
+ * SATA interrupt pin bug fix
+ * There's a chip bug for 5288, The interrupt pin should be 2,
+ * not the read only value 1, So it use INTB#, not INTA# which
+ * actually used by the IDE device 5229.
+ * As of this bug, during the PCI initialization, 5288 read the
+ * irq of IDE device from the device tree, this function fix this
+ * bug by re-assigning a correct irq to 5288.
+ *
+ */
+static void hpcd_final_uli5288(struct pci_dev *dev)
+{
+ struct pci_controller *hose = pci_bus_to_host(dev->bus);
+ struct device_node *hosenode = hose ? hose->dn : NULL;
+ struct of_phandle_args oirq;
+ u32 laddr[3];
+
+ if (!machine_is(mpc86xx_hpcd))
+ return;
+
+ if (!hosenode)
+ return;
+
+ oirq.np = hosenode;
+ oirq.args[0] = 2;
+ oirq.args_count = 1;
+ laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
+ laddr[1] = laddr[2] = 0;
+ of_irq_parse_raw(laddr, &oirq);
+ dev->irq = irq_create_of_mapping(&oirq);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, hpcd_quirk_uli1575);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, hpcd_quirk_uli5288);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, hpcd_quirk_uli5229);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5288, hpcd_final_uli5288);
int uli_exclude_device(struct pci_controller *hose,
u_char bus, u_char devfn)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 22:51:25 +0000