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-rw-r--r--arch/powerpc/boot/dts/mpc7448hpc2.dts44
-rw-r--r--arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c88
-rw-r--r--arch/powerpc/sysdev/tsi108_pci.c48
3 files changed, 93 insertions, 87 deletions
diff --git a/arch/powerpc/boot/dts/mpc7448hpc2.dts b/arch/powerpc/boot/dts/mpc7448hpc2.dts
index d7b985e6bd2..c4d9562cbaa 100644
--- a/arch/powerpc/boot/dts/mpc7448hpc2.dts
+++ b/arch/powerpc/boot/dts/mpc7448hpc2.dts
@@ -161,29 +161,41 @@
interrupt-map = <
/* IDSEL 0x11 */
- 0800 0 0 1 7400 24 0
- 0800 0 0 2 7400 25 0
- 0800 0 0 3 7400 26 0
- 0800 0 0 4 7400 27 0
+ 0800 0 0 1 1180 24 0
+ 0800 0 0 2 1180 25 0
+ 0800 0 0 3 1180 26 0
+ 0800 0 0 4 1180 27 0
/* IDSEL 0x12 */
- 1000 0 0 1 7400 25 0
- 1000 0 0 2 7400 26 0
- 1000 0 0 3 7400 27 0
- 1000 0 0 4 7400 24 0
+ 1000 0 0 1 1180 25 0
+ 1000 0 0 2 1180 26 0
+ 1000 0 0 3 1180 27 0
+ 1000 0 0 4 1180 24 0
/* IDSEL 0x13 */
- 1800 0 0 1 7400 26 0
- 1800 0 0 2 7400 27 0
- 1800 0 0 3 7400 24 0
- 1800 0 0 4 7400 25 0
+ 1800 0 0 1 1180 26 0
+ 1800 0 0 2 1180 27 0
+ 1800 0 0 3 1180 24 0
+ 1800 0 0 4 1180 25 0
/* IDSEL 0x14 */
- 2000 0 0 1 7400 27 0
- 2000 0 0 2 7400 24 0
- 2000 0 0 3 7400 25 0
- 2000 0 0 4 7400 26 0
+ 2000 0 0 1 1180 27 0
+ 2000 0 0 2 1180 24 0
+ 2000 0 0 3 1180 25 0
+ 2000 0 0 4 1180 26 0
>;
+ router@1180 {
+ linux,phandle = <1180>;
+ clock-frequency = <0>;
+ interrupt-controller;
+ device_type = "pic-router";
+ #address-cells = <0>;
+ #interrupt-cells = <2>;
+ built-in;
+ big-endian;
+ interrupts = <17 2>;
+ interrupt-parent = <7400>;
+ };
};
};
diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
index c6113c39009..3fcc85f60fb 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
+++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
@@ -60,7 +60,7 @@ pci_dram_offset = MPC7448_HPC2_PCI_MEM_OFFSET;
extern int tsi108_setup_pci(struct device_node *dev);
extern void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
-extern void tsi108_pci_int_init(void);
+extern void tsi108_pci_int_init(struct device_node *node);
extern void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc);
int mpc7448_hpc2_exclude_device(u_char bus, u_char devfn)
@@ -71,59 +71,6 @@ int mpc7448_hpc2_exclude_device(u_char bus, u_char devfn)
return PCIBIOS_SUCCESSFUL;
}
-/*
- * find pci slot by devfn in interrupt map of OF tree
- */
-u8 find_slot_by_devfn(unsigned int *interrupt_map, unsigned int devfn)
-{
- int i;
- unsigned int tmp;
- for (i = 0; i < 4; i++){
- tmp = interrupt_map[i*4*7];
- if ((tmp >> 11) == (devfn >> 3))
- return i;
- }
- return i;
-}
-
-/*
- * Scans the interrupt map for pci device
- */
-void __devinit mpc7448_hpc2_fixup_irq(struct pci_dev *dev)
-{
- struct pci_controller *hose;
- struct device_node *node;
- const unsigned int *interrupt;
- int busnr;
- int len;
- u8 slot;
- u8 pin;
-
- /* Lookup the hose */
- busnr = dev->bus->number;
- hose = pci_bus_to_hose(busnr);
- if (!hose)
- printk(KERN_ERR "No pci hose found\n");
-
- /* Check it has an OF node associated */
- node = (struct device_node *) hose->arch_data;
- if (!node)
- printk(KERN_ERR "No pci node found\n");
-
- interrupt = get_property(node, "interrupt-map", &len);
- slot = find_slot_by_devfn(interrupt, dev->devfn);
- pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
- if (pin == 0 || pin > 4)
- pin = 1;
- pin--;
- dev->irq = interrupt[slot*4*7 + pin*7 + 5];
-
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
-
- DBG("TSI_PCI: dev->irq = 0x%x\n", dev->irq);
-}
-/* temporary pci irq map fixup*/
-
static void __init mpc7448_hpc2_setup_arch(void)
{
struct device_node *cpu;
@@ -186,9 +133,12 @@ static void __init mpc7448_hpc2_init_IRQ(void)
{
struct mpic *mpic;
phys_addr_t mpic_paddr = 0;
+ struct device_node *tsi_pic;
+#ifdef CONFIG_PCI
unsigned int cascade_pci_irq;
struct device_node *tsi_pci;
- struct device_node *tsi_pic;
+ struct device_node *cascade_node = NULL;
+#endif
tsi_pic = of_find_node_by_type(NULL, "open-pic");
if (tsi_pic) {
@@ -202,31 +152,41 @@ static void __init mpc7448_hpc2_init_IRQ(void)
return;
}
- DBG("%s: tsi108pic phys_addr = 0x%x\n", __FUNCTION__,
+ DBG("%s: tsi108 pic phys_addr = 0x%x\n", __FUNCTION__,
(u32) mpic_paddr);
mpic = mpic_alloc(tsi_pic, mpic_paddr,
MPIC_PRIMARY | MPIC_BIG_ENDIAN | MPIC_WANTS_RESET |
MPIC_SPV_EOI | MPIC_NO_PTHROU_DIS | MPIC_REGSET_TSI108,
- 0, /* num_sources used */
- 0, /* num_sources used */
+ 24,
+ NR_IRQS-4, /* num_sources used */
"Tsi108_PIC");
- BUG_ON(mpic == NULL); /* XXXX */
+ BUG_ON(mpic == NULL);
+
+ mpic_assign_isu(mpic, 0, mpic_paddr + 0x100);
+
mpic_init(mpic);
+#ifdef CONFIG_PCI
tsi_pci = of_find_node_by_type(NULL, "pci");
- if (tsi_pci == 0) {
+ if (tsi_pci == NULL) {
printk("%s: No tsi108 pci node found !\n", __FUNCTION__);
return;
}
+ cascade_node = of_find_node_by_type(NULL, "pic-router");
+ if (cascade_node == NULL) {
+ printk("%s: No tsi108 pci cascade node found !\n", __FUNCTION__);
+ return;
+ }
cascade_pci_irq = irq_of_parse_and_map(tsi_pci, 0);
+ DBG("%s: tsi108 cascade_pci_irq = 0x%x\n", __FUNCTION__,
+ (u32) cascade_pci_irq);
+ tsi108_pci_int_init(cascade_node);
set_irq_data(cascade_pci_irq, mpic);
set_irq_chained_handler(cascade_pci_irq, tsi108_irq_cascade);
-
- tsi108_pci_int_init();
-
+#endif
/* Configure MPIC outputs to CPU0 */
tsi108_write_reg(TSI108_MPIC_OFFSET + 0x30c, 0);
of_node_put(tsi_pic);
@@ -284,7 +244,6 @@ static int mpc7448_machine_check_exception(struct pt_regs *regs)
return 1;
}
return 0;
-
}
define_machine(mpc7448_hpc2){
@@ -294,7 +253,6 @@ define_machine(mpc7448_hpc2){
.init_IRQ = mpc7448_hpc2_init_IRQ,
.show_cpuinfo = mpc7448_hpc2_show_cpuinfo,
.get_irq = mpic_get_irq,
- .pci_irq_fixup = mpc7448_hpc2_fixup_irq,
.restart = mpc7448_hpc2_restart,
.calibrate_decr = generic_calibrate_decr,
.machine_check_exception= mpc7448_machine_check_exception,
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 322f86e93de..ae249c6bbbc 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -3,6 +3,8 @@
*
* 2004-2005 (c) Tundra Semiconductor Corp.
* Author: Alex Bounine (alexandreb@tundra.com)
+ * Author: Roy Zang (tie-fei.zang@freescale.com)
+ * Add pci interrupt router host
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
@@ -48,6 +50,8 @@
u32 tsi108_pci_cfg_base;
u32 tsi108_csr_vir_base;
+static struct device_node *pci_irq_node;
+static struct irq_host *pci_irq_host;
extern u32 get_vir_csrbase(void);
extern u32 tsi108_read_reg(u32 reg_offset);
@@ -378,6 +382,38 @@ static struct irq_chip tsi108_pci_irq = {
.unmask = tsi108_pci_irq_enable,
};
+static int pci_irq_host_xlate(struct irq_host *h, struct device_node *ct,
+ u32 *intspec, unsigned int intsize,
+ irq_hw_number_t *out_hwirq, unsigned int *out_flags)
+{
+ *out_hwirq = intspec[0];
+ *out_flags = IRQ_TYPE_LEVEL_HIGH;
+ return 0;
+}
+
+static int pci_irq_host_map(struct irq_host *h, unsigned int virq,
+ irq_hw_number_t hw)
+{ unsigned int irq;
+ DBG("%s(%d, 0x%lx)\n", __FUNCTION__, virq, hw);
+ if ((virq >= 1) && (virq <= 4)){
+ irq = virq + IRQ_PCI_INTAD_BASE - 1;
+ get_irq_desc(irq)->status |= IRQ_LEVEL;
+ set_irq_chip(irq, &tsi108_pci_irq);
+ }
+ return 0;
+}
+
+static int pci_irq_host_match(struct irq_host *h, struct device_node *node)
+{
+ return pci_irq_node == node;
+}
+
+static struct irq_host_ops pci_irq_host_ops = {
+ .match = pci_irq_host_match,
+ .map = pci_irq_host_map,
+ .xlate = pci_irq_host_xlate,
+};
+
/*
* Exported functions
*/
@@ -391,15 +427,15 @@ static struct irq_chip tsi108_pci_irq = {
* to the MPIC.
*/
-void __init tsi108_pci_int_init(void)
+void __init tsi108_pci_int_init(struct device_node *node)
{
- u_int i;
-
DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
- for (i = 0; i < NUM_PCI_IRQS; i++) {
- irq_desc[i + IRQ_PCI_INTAD_BASE].chip = &tsi108_pci_irq;
- irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
+ pci_irq_node = of_node_get(node);
+ pci_irq_host = irq_alloc_host(IRQ_HOST_MAP_LEGACY, 0, &pci_irq_host_ops, 0);
+ if (pci_irq_host == NULL) {
+ printk(KERN_ERR "pci_irq_host: failed to allocate irq host !\n");
+ return;
}
init_pci_source();
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 18:47:11 +0000