diff options
Diffstat (limited to 'arch/xtensa/platforms/s6105/setup.c')
-rw-r--r-- | arch/xtensa/platforms/s6105/setup.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/xtensa/platforms/s6105/setup.c b/arch/xtensa/platforms/s6105/setup.c new file mode 100644 index 000000000000..ae041d5027a2 --- /dev/null +++ b/arch/xtensa/platforms/s6105/setup.c | |||
@@ -0,0 +1,61 @@ | |||
1 | /* | ||
2 | * s6105 control routines | ||
3 | * | ||
4 | * Copyright (c) 2009 emlix GmbH | ||
5 | */ | ||
6 | #include <linux/irq.h> | ||
7 | #include <linux/io.h> | ||
8 | #include <linux/gpio.h> | ||
9 | |||
10 | #include <asm/bootparam.h> | ||
11 | |||
12 | #include <variant/hardware.h> | ||
13 | #include <platform/gpio.h> | ||
14 | |||
15 | void platform_halt(void) | ||
16 | { | ||
17 | local_irq_disable(); | ||
18 | while (1) | ||
19 | ; | ||
20 | } | ||
21 | |||
22 | void platform_power_off(void) | ||
23 | { | ||
24 | platform_halt(); | ||
25 | } | ||
26 | |||
27 | void platform_restart(void) | ||
28 | { | ||
29 | platform_halt(); | ||
30 | } | ||
31 | |||
32 | void __init platform_setup(char **cmdline) | ||
33 | { | ||
34 | unsigned long reg; | ||
35 | |||
36 | reg = readl(S6_REG_GREG1 + S6_GREG1_CLKGATE); | ||
37 | reg &= ~(1 << S6_GREG1_BLOCK_SB); | ||
38 | writel(reg, S6_REG_GREG1 + S6_GREG1_CLKGATE); | ||
39 | |||
40 | reg = readl(S6_REG_GREG1 + S6_GREG1_BLOCKENA); | ||
41 | reg |= 1 << S6_GREG1_BLOCK_SB; | ||
42 | writel(reg, S6_REG_GREG1 + S6_GREG1_BLOCKENA); | ||
43 | |||
44 | printk(KERN_NOTICE "S6105 on Stretch S6000 - " | ||
45 | "Copyright (C) 2009 emlix GmbH <info@emlix.com>\n"); | ||
46 | } | ||
47 | |||
48 | void __init platform_init(bp_tag_t *first) | ||
49 | { | ||
50 | gpio_request(GPIO_LED1_NGREEN, "led1_green"); | ||
51 | gpio_request(GPIO_LED1_RED, "led1_red"); | ||
52 | gpio_direction_output(GPIO_LED1_NGREEN, 1); | ||
53 | } | ||
54 | |||
55 | void platform_heartbeat(void) | ||
56 | { | ||
57 | static unsigned int c; | ||
58 | |||
59 | if (!(++c & 0x4F)) | ||
60 | gpio_direction_output(GPIO_LED1_RED, !(c & 0x10)); | ||
61 | } | ||