Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshi...
[linux-2.6] / arch / powerpc / platforms / 8xx / mpc86xads_setup.c
1 /*arch/powerpc/platforms/8xx/mpc86xads_setup.c
2  *
3  * Platform setup for the Freescale mpc86xads board
4  *
5  * Vitaly Bordug <vbordug@ru.mvista.com>
6  *
7  * Copyright 2005 MontaVista Software Inc.
8  *
9  * Heavily modified by Scott Wood <scottwood@freescale.com>
10  * Copyright 2007 Freescale Semiconductor, Inc.
11  *
12  * This file is licensed under the terms of the GNU General Public License
13  * version 2. This program is licensed "as is" without any warranty of any
14  * kind, whether express or implied.
15  */
16
17 #include <linux/init.h>
18 #include <linux/of_platform.h>
19
20 #include <asm/io.h>
21 #include <asm/machdep.h>
22 #include <asm/system.h>
23 #include <asm/time.h>
24 #include <asm/8xx_immap.h>
25 #include <asm/cpm1.h>
26 #include <asm/fs_pd.h>
27 #include <asm/udbg.h>
28
29 #include "mpc86xads.h"
30 #include "mpc8xx.h"
31
32 struct cpm_pin {
33         int port, pin, flags;
34 };
35
36 static struct cpm_pin mpc866ads_pins[] = {
37         /* SMC1 */
38         {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
39         {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
40
41         /* SMC2 */
42         {CPM_PORTB, 21, CPM_PIN_INPUT}, /* RX */
43         {CPM_PORTB, 20, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
44
45         /* SCC1 */
46         {CPM_PORTA, 6, CPM_PIN_INPUT}, /* CLK1 */
47         {CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */
48         {CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */
49         {CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */
50         {CPM_PORTB, 19, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */
51         {CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* RENA */
52         {CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CLSN */
53
54         /* MII */
55         {CPM_PORTD, 3, CPM_PIN_OUTPUT},
56         {CPM_PORTD, 4, CPM_PIN_OUTPUT},
57         {CPM_PORTD, 5, CPM_PIN_OUTPUT},
58         {CPM_PORTD, 6, CPM_PIN_OUTPUT},
59         {CPM_PORTD, 7, CPM_PIN_OUTPUT},
60         {CPM_PORTD, 8, CPM_PIN_OUTPUT},
61         {CPM_PORTD, 9, CPM_PIN_OUTPUT},
62         {CPM_PORTD, 10, CPM_PIN_OUTPUT},
63         {CPM_PORTD, 11, CPM_PIN_OUTPUT},
64         {CPM_PORTD, 12, CPM_PIN_OUTPUT},
65         {CPM_PORTD, 13, CPM_PIN_OUTPUT},
66         {CPM_PORTD, 14, CPM_PIN_OUTPUT},
67         {CPM_PORTD, 15, CPM_PIN_OUTPUT},
68 };
69
70 static void __init init_ioports(void)
71 {
72         int i;
73
74         for (i = 0; i < ARRAY_SIZE(mpc866ads_pins); i++) {
75                 struct cpm_pin *pin = &mpc866ads_pins[i];
76                 cpm1_set_pin(pin->port, pin->pin, pin->flags);
77         }
78
79         cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
80         cpm1_clk_setup(CPM_CLK_SMC2, CPM_BRG2, CPM_CLK_RTX);
81         cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK1, CPM_CLK_TX);
82         cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_RX);
83
84         /* Set FEC1 and FEC2 to MII mode */
85         clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180);
86 }
87
88 static void __init mpc86xads_setup_arch(void)
89 {
90         struct device_node *np;
91         u32 __iomem *bcsr_io;
92
93         cpm_reset();
94         init_ioports();
95
96         np = of_find_compatible_node(NULL, NULL, "fsl,mpc866ads-bcsr");
97         if (!np) {
98                 printk(KERN_CRIT "Could not find fsl,mpc866ads-bcsr node\n");
99                 return;
100         }
101
102         bcsr_io = of_iomap(np, 0);
103         of_node_put(np);
104
105         if (bcsr_io == NULL) {
106                 printk(KERN_CRIT "Could not remap BCSR\n");
107                 return;
108         }
109
110         clrbits32(bcsr_io, BCSR1_RS232EN_1 | BCSR1_RS232EN_2 | BCSR1_ETHEN);
111         iounmap(bcsr_io);
112 }
113
114 static int __init mpc86xads_probe(void)
115 {
116         unsigned long root = of_get_flat_dt_root();
117         return of_flat_dt_is_compatible(root, "fsl,mpc866ads");
118 }
119
120 static struct of_device_id __initdata of_bus_ids[] = {
121         { .name = "soc", },
122         { .name = "cpm", },
123         { .name = "localbus", },
124         {},
125 };
126
127 static int __init declare_of_platform_devices(void)
128 {
129         of_platform_bus_probe(NULL, of_bus_ids, NULL);
130
131         return 0;
132 }
133 machine_device_initcall(mpc86x_ads, declare_of_platform_devices);
134
135 define_machine(mpc86x_ads) {
136         .name                   = "MPC86x ADS",
137         .probe                  = mpc86xads_probe,
138         .setup_arch             = mpc86xads_setup_arch,
139         .init_IRQ               = mpc8xx_pics_init,
140         .get_irq                = mpc8xx_get_irq,
141         .restart                = mpc8xx_restart,
142         .calibrate_decr         = mpc8xx_calibrate_decr,
143         .set_rtc_time           = mpc8xx_set_rtc_time,
144         .get_rtc_time           = mpc8xx_get_rtc_time,
145         .progress               = udbg_progress,
146 };