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c4b6a776 HS |
1 | /* |
2 | * Platform setup for the MPC8xx based boards from TQM. | |
3 | * | |
4 | * Heiko Schocher <hs@denx.de> | |
5 | * Copyright 2010 DENX Software Engineering GmbH | |
6 | * | |
7 | * based on: | |
8 | * Vitaly Bordug <vbordug@ru.mvista.com> | |
9 | * | |
10 | * Copyright 2005 MontaVista Software Inc. | |
11 | * | |
12 | * Heavily modified by Scott Wood <scottwood@freescale.com> | |
13 | * Copyright 2007 Freescale Semiconductor, Inc. | |
14 | * | |
15 | * This file is licensed under the terms of the GNU General Public License | |
16 | * version 2. This program is licensed "as is" without any warranty of any | |
17 | * kind, whether express or implied. | |
18 | */ | |
19 | ||
20 | #include <linux/init.h> | |
c4b6a776 HS |
21 | #include <linux/param.h> |
22 | #include <linux/string.h> | |
23 | #include <linux/ioport.h> | |
24 | #include <linux/device.h> | |
25 | #include <linux/delay.h> | |
26 | ||
27 | #include <linux/fs_enet_pd.h> | |
28 | #include <linux/fs_uart_pd.h> | |
29 | #include <linux/fsl_devices.h> | |
30 | #include <linux/mii.h> | |
26a2056e | 31 | #include <linux/of_fdt.h> |
c4b6a776 HS |
32 | #include <linux/of_platform.h> |
33 | ||
34 | #include <asm/delay.h> | |
35 | #include <asm/io.h> | |
36 | #include <asm/machdep.h> | |
37 | #include <asm/page.h> | |
38 | #include <asm/processor.h> | |
c4b6a776 | 39 | #include <asm/time.h> |
c4b6a776 HS |
40 | #include <asm/8xx_immap.h> |
41 | #include <asm/cpm1.h> | |
42 | #include <asm/fs_pd.h> | |
43 | #include <asm/udbg.h> | |
44 | ||
45 | #include "mpc8xx.h" | |
46 | ||
47 | struct cpm_pin { | |
48 | int port, pin, flags; | |
49 | }; | |
50 | ||
1443d6a2 | 51 | static struct cpm_pin tqm8xx_pins[] __initdata = { |
c4b6a776 HS |
52 | /* SMC1 */ |
53 | {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ | |
54 | {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ | |
55 | ||
56 | /* SCC1 */ | |
57 | {CPM_PORTA, 5, CPM_PIN_INPUT}, /* CLK1 */ | |
58 | {CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */ | |
59 | {CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */ | |
60 | {CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */ | |
61 | {CPM_PORTC, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */ | |
62 | {CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, | |
63 | {CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, | |
64 | }; | |
65 | ||
1443d6a2 | 66 | static struct cpm_pin tqm8xx_fec_pins[] __initdata = { |
c4b6a776 HS |
67 | /* MII */ |
68 | {CPM_PORTD, 3, CPM_PIN_OUTPUT}, | |
69 | {CPM_PORTD, 4, CPM_PIN_OUTPUT}, | |
70 | {CPM_PORTD, 5, CPM_PIN_OUTPUT}, | |
71 | {CPM_PORTD, 6, CPM_PIN_OUTPUT}, | |
72 | {CPM_PORTD, 7, CPM_PIN_OUTPUT}, | |
73 | {CPM_PORTD, 8, CPM_PIN_OUTPUT}, | |
74 | {CPM_PORTD, 9, CPM_PIN_OUTPUT}, | |
75 | {CPM_PORTD, 10, CPM_PIN_OUTPUT}, | |
76 | {CPM_PORTD, 11, CPM_PIN_OUTPUT}, | |
77 | {CPM_PORTD, 12, CPM_PIN_OUTPUT}, | |
78 | {CPM_PORTD, 13, CPM_PIN_OUTPUT}, | |
79 | {CPM_PORTD, 14, CPM_PIN_OUTPUT}, | |
80 | {CPM_PORTD, 15, CPM_PIN_OUTPUT}, | |
81 | }; | |
82 | ||
83 | static void __init init_pins(int n, struct cpm_pin *pin) | |
84 | { | |
85 | int i; | |
86 | ||
87 | for (i = 0; i < n; i++) { | |
88 | cpm1_set_pin(pin->port, pin->pin, pin->flags); | |
89 | pin++; | |
90 | } | |
91 | } | |
92 | ||
93 | static void __init init_ioports(void) | |
94 | { | |
95 | struct device_node *dnode; | |
96 | struct property *prop; | |
97 | int len; | |
98 | ||
99 | init_pins(ARRAY_SIZE(tqm8xx_pins), &tqm8xx_pins[0]); | |
100 | ||
101 | cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); | |
102 | ||
103 | dnode = of_find_node_by_name(NULL, "aliases"); | |
104 | if (dnode == NULL) | |
105 | return; | |
106 | prop = of_find_property(dnode, "ethernet1", &len); | |
107 | if (prop == NULL) | |
108 | return; | |
109 | ||
110 | /* init FEC pins */ | |
111 | init_pins(ARRAY_SIZE(tqm8xx_fec_pins), &tqm8xx_fec_pins[0]); | |
112 | } | |
113 | ||
114 | static void __init tqm8xx_setup_arch(void) | |
115 | { | |
116 | cpm_reset(); | |
117 | init_ioports(); | |
118 | } | |
119 | ||
120 | static int __init tqm8xx_probe(void) | |
121 | { | |
122 | unsigned long node = of_get_flat_dt_root(); | |
123 | ||
124 | return of_flat_dt_is_compatible(node, "tqc,tqm8xx"); | |
125 | } | |
126 | ||
ce6d73c9 | 127 | static const struct of_device_id of_bus_ids[] __initconst = { |
c4b6a776 HS |
128 | { .name = "soc", }, |
129 | { .name = "cpm", }, | |
130 | { .name = "localbus", }, | |
131 | { .compatible = "simple-bus" }, | |
132 | {}, | |
133 | }; | |
134 | ||
135 | static int __init declare_of_platform_devices(void) | |
136 | { | |
137 | of_platform_bus_probe(NULL, of_bus_ids, NULL); | |
138 | ||
139 | return 0; | |
140 | } | |
141 | machine_device_initcall(tqm8xx, declare_of_platform_devices); | |
142 | ||
143 | define_machine(tqm8xx) { | |
144 | .name = "TQM8xx", | |
145 | .probe = tqm8xx_probe, | |
146 | .setup_arch = tqm8xx_setup_arch, | |
147 | .init_IRQ = mpc8xx_pics_init, | |
148 | .get_irq = mpc8xx_get_irq, | |
149 | .restart = mpc8xx_restart, | |
150 | .calibrate_decr = mpc8xx_calibrate_decr, | |
151 | .set_rtc_time = mpc8xx_set_rtc_time, | |
152 | .get_rtc_time = mpc8xx_get_rtc_time, | |
153 | .progress = udbg_progress, | |
154 | }; |