diff options
Diffstat (limited to 'arch/powerpc/platforms/8xx/mgsuvd.c')
-rw-r--r-- | arch/powerpc/platforms/8xx/mgsuvd.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/8xx/mgsuvd.c b/arch/powerpc/platforms/8xx/mgsuvd.c new file mode 100644 index 000000000000..ca3cb071772c --- /dev/null +++ b/arch/powerpc/platforms/8xx/mgsuvd.c | |||
@@ -0,0 +1,92 @@ | |||
1 | /* | ||
2 | * | ||
3 | * Platform setup for the Keymile mgsuvd board | ||
4 | * | ||
5 | * Heiko Schocher <hs@denx.de> | ||
6 | * | ||
7 | * Copyright 2008 DENX Software Engineering GmbH | ||
8 | * | ||
9 | * This file is licensed under the terms of the GNU General Public License | ||
10 | * version 2. This program is licensed "as is" without any warranty of any | ||
11 | * kind, whether express or implied. | ||
12 | */ | ||
13 | |||
14 | #include <linux/ioport.h> | ||
15 | #include <linux/of_platform.h> | ||
16 | |||
17 | #include <asm/io.h> | ||
18 | #include <asm/machdep.h> | ||
19 | #include <asm/processor.h> | ||
20 | #include <asm/cpm1.h> | ||
21 | #include <asm/prom.h> | ||
22 | #include <asm/fs_pd.h> | ||
23 | |||
24 | #include "mpc8xx.h" | ||
25 | |||
26 | struct cpm_pin { | ||
27 | int port, pin, flags; | ||
28 | }; | ||
29 | |||
30 | static __initdata struct cpm_pin mgsuvd_pins[] = { | ||
31 | /* SMC1 */ | ||
32 | {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ | ||
33 | {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ | ||
34 | |||
35 | /* SCC3 */ | ||
36 | {CPM_PORTA, 10, CPM_PIN_INPUT}, | ||
37 | {CPM_PORTA, 11, CPM_PIN_INPUT}, | ||
38 | {CPM_PORTA, 3, CPM_PIN_INPUT}, | ||
39 | {CPM_PORTA, 2, CPM_PIN_INPUT}, | ||
40 | {CPM_PORTC, 13, CPM_PIN_INPUT}, | ||
41 | }; | ||
42 | |||
43 | static void __init init_ioports(void) | ||
44 | { | ||
45 | int i; | ||
46 | |||
47 | for (i = 0; i < ARRAY_SIZE(mgsuvd_pins); i++) { | ||
48 | struct cpm_pin *pin = &mgsuvd_pins[i]; | ||
49 | cpm1_set_pin(pin->port, pin->pin, pin->flags); | ||
50 | } | ||
51 | |||
52 | setbits16(&mpc8xx_immr->im_ioport.iop_pcso, 0x300); | ||
53 | cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK5, CPM_CLK_RX); | ||
54 | cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK6, CPM_CLK_TX); | ||
55 | cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); | ||
56 | } | ||
57 | |||
58 | static void __init mgsuvd_setup_arch(void) | ||
59 | { | ||
60 | cpm_reset(); | ||
61 | init_ioports(); | ||
62 | } | ||
63 | |||
64 | static __initdata struct of_device_id of_bus_ids[] = { | ||
65 | { .compatible = "simple-bus" }, | ||
66 | {}, | ||
67 | }; | ||
68 | |||
69 | static int __init declare_of_platform_devices(void) | ||
70 | { | ||
71 | of_platform_bus_probe(NULL, of_bus_ids, NULL); | ||
72 | return 0; | ||
73 | } | ||
74 | machine_device_initcall(mgsuvd, declare_of_platform_devices); | ||
75 | |||
76 | static int __init mgsuvd_probe(void) | ||
77 | { | ||
78 | unsigned long root = of_get_flat_dt_root(); | ||
79 | return of_flat_dt_is_compatible(root, "keymile,mgsuvd"); | ||
80 | } | ||
81 | |||
82 | define_machine(mgsuvd) { | ||
83 | .name = "MGSUVD", | ||
84 | .probe = mgsuvd_probe, | ||
85 | .setup_arch = mgsuvd_setup_arch, | ||
86 | .init_IRQ = mpc8xx_pics_init, | ||
87 | .get_irq = mpc8xx_get_irq, | ||
88 | .restart = mpc8xx_restart, | ||
89 | .calibrate_decr = mpc8xx_calibrate_decr, | ||
90 | .set_rtc_time = mpc8xx_set_rtc_time, | ||
91 | .get_rtc_time = mpc8xx_get_rtc_time, | ||
92 | }; | ||