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543a07b1 DES |
1 | /* |
2 | * Routines common to most mpc85xx-based boards. | |
3 | * | |
4 | * This is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
26a2056e RH |
8 | |
9 | #include <linux/of_irq.h> | |
543a07b1 DES |
10 | #include <linux/of_platform.h> |
11 | ||
12 | #include <sysdev/cpm2_pic.h> | |
13 | ||
14 | #include "mpc85xx.h" | |
15 | ||
46d026ac DES |
16 | static struct of_device_id __initdata mpc85xx_common_ids[] = { |
17 | { .type = "soc", }, | |
18 | { .compatible = "soc", }, | |
19 | { .compatible = "simple-bus", }, | |
20 | { .name = "cpm", }, | |
21 | { .name = "localbus", }, | |
22 | { .compatible = "gianfar", }, | |
23 | { .compatible = "fsl,qe", }, | |
24 | { .compatible = "fsl,cpm2", }, | |
199bfbe6 | 25 | { .compatible = "fsl,srio", }, |
8a95bc8d TT |
26 | /* So that the DMA channel nodes can be probed individually: */ |
27 | { .compatible = "fsl,eloplus-dma", }, | |
28 | /* For the PMC driver */ | |
29 | { .compatible = "fsl,mpc8548-guts", }, | |
30 | /* Probably unnecessary? */ | |
31 | { .compatible = "gpio-leds", }, | |
905e75c4 JH |
32 | /* For all PCI controllers */ |
33 | { .compatible = "fsl,mpc8540-pci", }, | |
34 | { .compatible = "fsl,mpc8548-pcie", }, | |
35 | { .compatible = "fsl,p1022-pcie", }, | |
36 | { .compatible = "fsl,p1010-pcie", }, | |
37 | { .compatible = "fsl,p1023-pcie", }, | |
38 | { .compatible = "fsl,p4080-pcie", }, | |
39 | { .compatible = "fsl,qoriq-pcie-v2.4", }, | |
40 | { .compatible = "fsl,qoriq-pcie-v2.3", }, | |
41 | { .compatible = "fsl,qoriq-pcie-v2.2", }, | |
46d026ac DES |
42 | {}, |
43 | }; | |
44 | ||
45 | int __init mpc85xx_common_publish_devices(void) | |
46 | { | |
47 | return of_platform_bus_probe(NULL, mpc85xx_common_ids, NULL); | |
48 | } | |
543a07b1 DES |
49 | #ifdef CONFIG_CPM2 |
50 | static void cpm2_cascade(unsigned int irq, struct irq_desc *desc) | |
51 | { | |
52 | struct irq_chip *chip = irq_desc_get_chip(desc); | |
53 | int cascade_irq; | |
54 | ||
55 | while ((cascade_irq = cpm2_get_irq()) >= 0) | |
56 | generic_handle_irq(cascade_irq); | |
57 | ||
58 | chip->irq_eoi(&desc->irq_data); | |
59 | } | |
60 | ||
61 | ||
62 | void __init mpc85xx_cpm2_pic_init(void) | |
63 | { | |
64 | struct device_node *np; | |
65 | int irq; | |
66 | ||
67 | /* Setup CPM2 PIC */ | |
68 | np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic"); | |
69 | if (np == NULL) { | |
70 | printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n"); | |
71 | return; | |
72 | } | |
73 | irq = irq_of_parse_and_map(np, 0); | |
74 | if (irq == NO_IRQ) { | |
75 | of_node_put(np); | |
76 | printk(KERN_ERR "PIC init: got no IRQ for cpm cascade\n"); | |
77 | return; | |
78 | } | |
79 | ||
80 | cpm2_pic_init(np); | |
81 | of_node_put(np); | |
82 | irq_set_chained_handler(irq, cpm2_cascade); | |
83 | } | |
84 | #endif |