]>
Commit | Line | Data |
---|---|---|
7d13d21a | 1 | /* |
49baa91d | 2 | * arch/powerpc/platforms/83xx/mpc834x_mds.c |
7d13d21a | 3 | * |
49baa91d | 4 | * MPC834x MDS board specific routines |
7d13d21a KG |
5 | * |
6 | * Maintainer: Kumar Gala <galak@kernel.crashing.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | */ | |
13 | ||
7d13d21a KG |
14 | #include <linux/stddef.h> |
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/reboot.h> | |
19 | #include <linux/pci.h> | |
20 | #include <linux/kdev_t.h> | |
21 | #include <linux/major.h> | |
22 | #include <linux/console.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/seq_file.h> | |
25 | #include <linux/root_dev.h> | |
8129a59a | 26 | #include <linux/of_platform.h> |
7d13d21a KG |
27 | |
28 | #include <asm/system.h> | |
60063497 | 29 | #include <linux/atomic.h> |
7d13d21a KG |
30 | #include <asm/time.h> |
31 | #include <asm/io.h> | |
32 | #include <asm/machdep.h> | |
33 | #include <asm/ipic.h> | |
7d13d21a | 34 | #include <asm/irq.h> |
7d13d21a KG |
35 | #include <asm/prom.h> |
36 | #include <asm/udbg.h> | |
37 | #include <sysdev/fsl_soc.h> | |
76fe1ffc | 38 | #include <sysdev/fsl_pci.h> |
7d13d21a KG |
39 | |
40 | #include "mpc83xx.h" | |
41 | ||
c1616982 | 42 | #define BCSR5_INT_USB 0x02 |
e5a94af8 | 43 | static int mpc834xemds_usb_cfg(void) |
c1616982 | 44 | { |
e5a94af8 | 45 | struct device_node *np; |
c1616982 LY |
46 | void __iomem *bcsr_regs = NULL; |
47 | u8 bcsr5; | |
c1616982 | 48 | |
e5a94af8 | 49 | mpc834x_usb_cfg(); |
c1616982 LY |
50 | /* Map BCSR area */ |
51 | np = of_find_node_by_name(NULL, "bcsr"); | |
e5a94af8 | 52 | if (np) { |
c1616982 LY |
53 | struct resource res; |
54 | ||
55 | of_address_to_resource(np, 0, &res); | |
28f65c11 | 56 | bcsr_regs = ioremap(res.start, resource_size(&res)); |
c1616982 LY |
57 | of_node_put(np); |
58 | } | |
59 | if (!bcsr_regs) | |
60 | return -1; | |
61 | ||
62 | /* | |
aea12b75 LY |
63 | * if Processor Board is plugged into PIB board, |
64 | * force to use the PHY on Processor Board | |
c1616982 LY |
65 | */ |
66 | bcsr5 = in_8(bcsr_regs + 5); | |
67 | if (!(bcsr5 & BCSR5_INT_USB)) | |
68 | out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB)); | |
69 | iounmap(bcsr_regs); | |
70 | return 0; | |
71 | } | |
72 | ||
7d13d21a KG |
73 | /* ************************************************************************ |
74 | * | |
75 | * Setup the architecture | |
76 | * | |
77 | */ | |
49baa91d | 78 | static void __init mpc834x_mds_setup_arch(void) |
7d13d21a | 79 | { |
b38d06d8 | 80 | #ifdef CONFIG_PCI |
7d13d21a | 81 | struct device_node *np; |
b38d06d8 | 82 | #endif |
7d13d21a KG |
83 | |
84 | if (ppc_md.progress) | |
49baa91d | 85 | ppc_md.progress("mpc834x_mds_setup_arch()", 0); |
7d13d21a | 86 | |
7d13d21a | 87 | #ifdef CONFIG_PCI |
c9438aff | 88 | for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") |
09b55f76 | 89 | mpc83xx_add_bridge(np); |
7d13d21a KG |
90 | #endif |
91 | ||
e5a94af8 | 92 | mpc834xemds_usb_cfg(); |
7d13d21a KG |
93 | } |
94 | ||
49baa91d | 95 | static void __init mpc834x_mds_init_IRQ(void) |
7d13d21a | 96 | { |
f1f17716 KP |
97 | struct device_node *np; |
98 | ||
99 | np = of_find_node_by_type(NULL, "ipic"); | |
100 | if (!np) | |
101 | return; | |
7d13d21a | 102 | |
f1f17716 | 103 | ipic_init(np, 0); |
7d13d21a KG |
104 | |
105 | /* Initialize the default interrupt mapping priorities, | |
106 | * in case the boot rom changed something on us. | |
107 | */ | |
108 | ipic_set_default_priority(); | |
109 | } | |
110 | ||
8129a59a SW |
111 | static struct of_device_id mpc834x_ids[] = { |
112 | { .type = "soc", }, | |
113 | { .compatible = "soc", }, | |
cf0d19fb | 114 | { .compatible = "simple-bus", }, |
70b3adbb | 115 | { .compatible = "gianfar", }, |
8129a59a SW |
116 | {}, |
117 | }; | |
118 | ||
119 | static int __init mpc834x_declare_of_platform_devices(void) | |
120 | { | |
8129a59a SW |
121 | of_platform_bus_probe(NULL, mpc834x_ids, NULL); |
122 | return 0; | |
123 | } | |
6392f184 | 124 | machine_device_initcall(mpc834x_mds, mpc834x_declare_of_platform_devices); |
8129a59a | 125 | |
72d2c3e0 KG |
126 | /* |
127 | * Called very early, MMU is off, device-tree isn't unflattened | |
128 | */ | |
49baa91d | 129 | static int __init mpc834x_mds_probe(void) |
7d13d21a | 130 | { |
8129a59a | 131 | unsigned long root = of_get_flat_dt_root(); |
336c3c2e | 132 | |
8129a59a | 133 | return of_flat_dt_is_compatible(root, "MPC834xMDS"); |
7d13d21a | 134 | } |
72d2c3e0 | 135 | |
49baa91d KG |
136 | define_machine(mpc834x_mds) { |
137 | .name = "MPC834x MDS", | |
138 | .probe = mpc834x_mds_probe, | |
139 | .setup_arch = mpc834x_mds_setup_arch, | |
140 | .init_IRQ = mpc834x_mds_init_IRQ, | |
72d2c3e0 KG |
141 | .get_irq = ipic_get_irq, |
142 | .restart = mpc83xx_restart, | |
143 | .time_init = mpc83xx_time_init, | |
144 | .calibrate_decr = generic_calibrate_decr, | |
145 | .progress = udbg_progress, | |
146 | }; |