diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-05 11:53:20 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-05 11:53:20 -0400 |
commit | c3d1f1746b966907ba5ad2f75ddca24db8b21147 (patch) | |
tree | 548a25e104d8bdb906030b8d3bf78fbfde0e5817 /arch/mips/wrppmc/setup.c | |
parent | 66eddbfcc1f6610fa7c73c8d20a57eaf8e284e2f (diff) | |
parent | 0d365753d0b7c26043fdfa97790411606fb40112 (diff) |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (150 commits)
MIPS: PowerTV: Separate PowerTV USB support from non-USB code
MIPS: strip the un-needed sections of vmlinuz
MIPS: Clean up the calculation of VMLINUZ_LOAD_ADDRESS
MIPS: Clean up arch/mips/boot/compressed/decompress.c
MIPS: Clean up arch/mips/boot/compressed/ld.script
MIPS: Unify the suffix of compressed vmlinux.bin
MIPS: PowerTV: Add Gaia platform definitions.
MIPS: BCM47xx: Fix nvram_getenv return value.
MIPS: Octeon: Allow more than 3.75GB of memory with PCIe
MIPS: Clean up notify_die() usage.
MIPS: Remove unused task_struct.trap_no field.
Documentation: Mention that KProbes is supported on MIPS
SAMPLES: kprobe_example: Make it print something on MIPS.
MIPS: kprobe: Add support.
MIPS: Add instrunction format for BREAK and SYSCALL
MIPS: kprobes: Define regs_return_value()
MIPS: Ritually kill stupid printk.
MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts.
MIPS: Octeon: Support 256 MSI on PCIe
MIPS: Decode core number for R2 CPUs.
...
Diffstat (limited to 'arch/mips/wrppmc/setup.c')
-rw-r--r-- | arch/mips/wrppmc/setup.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/arch/mips/wrppmc/setup.c b/arch/mips/wrppmc/setup.c new file mode 100644 index 000000000000..ca65c84031a7 --- /dev/null +++ b/arch/mips/wrppmc/setup.c | |||
@@ -0,0 +1,128 @@ | |||
1 | /* | ||
2 | * setup.c: Setup pointers to hardware dependent routines. | ||
3 | * | ||
4 | * This file is subject to the terms and conditions of the GNU General Public | ||
5 | * License. See the file "COPYING" in the main directory of this archive | ||
6 | * for more details. | ||
7 | * | ||
8 | * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org) | ||
9 | * Copyright (C) 2006, Wind River System Inc. Rongkai.zhan <rongkai.zhan@windriver.com> | ||
10 | */ | ||
11 | #include <linux/init.h> | ||
12 | #include <linux/string.h> | ||
13 | #include <linux/kernel.h> | ||
14 | #include <linux/pm.h> | ||
15 | |||
16 | #include <asm/io.h> | ||
17 | #include <asm/bootinfo.h> | ||
18 | #include <asm/reboot.h> | ||
19 | #include <asm/time.h> | ||
20 | #include <asm/gt64120.h> | ||
21 | |||
22 | unsigned long gt64120_base = KSEG1ADDR(0x14000000); | ||
23 | |||
24 | #ifdef WRPPMC_EARLY_DEBUG | ||
25 | |||
26 | static volatile unsigned char * wrppmc_led = \ | ||
27 | (volatile unsigned char *)KSEG1ADDR(WRPPMC_LED_BASE); | ||
28 | |||
29 | /* | ||
30 | * PPMC LED control register: | ||
31 | * -) bit[0] controls DS1 LED (1 - OFF, 0 - ON) | ||
32 | * -) bit[1] controls DS2 LED (1 - OFF, 0 - ON) | ||
33 | * -) bit[2] controls DS4 LED (1 - OFF, 0 - ON) | ||
34 | */ | ||
35 | void wrppmc_led_on(int mask) | ||
36 | { | ||
37 | unsigned char value = *wrppmc_led; | ||
38 | |||
39 | value &= (0xF8 | mask); | ||
40 | *wrppmc_led = value; | ||
41 | } | ||
42 | |||
43 | /* If mask = 0, turn off all LEDs */ | ||
44 | void wrppmc_led_off(int mask) | ||
45 | { | ||
46 | unsigned char value = *wrppmc_led; | ||
47 | |||
48 | value |= (0x7 & mask); | ||
49 | *wrppmc_led = value; | ||
50 | } | ||
51 | |||
52 | /* | ||
53 | * We assume that bootloader has initialized UART16550 correctly | ||
54 | */ | ||
55 | void __init wrppmc_early_putc(char ch) | ||
56 | { | ||
57 | static volatile unsigned char *wrppmc_uart = \ | ||
58 | (volatile unsigned char *)KSEG1ADDR(WRPPMC_UART16550_BASE); | ||
59 | unsigned char value; | ||
60 | |||
61 | /* Wait until Transmit-Holding-Register is empty */ | ||
62 | while (1) { | ||
63 | value = *(wrppmc_uart + 5); | ||
64 | if (value & 0x20) | ||
65 | break; | ||
66 | } | ||
67 | |||
68 | *wrppmc_uart = ch; | ||
69 | } | ||
70 | |||
71 | void __init wrppmc_early_printk(const char *fmt, ...) | ||
72 | { | ||
73 | static char pbuf[256] = {'\0', }; | ||
74 | char *ch = pbuf; | ||
75 | va_list args; | ||
76 | unsigned int i; | ||
77 | |||
78 | memset(pbuf, 0, 256); | ||
79 | va_start(args, fmt); | ||
80 | i = vsprintf(pbuf, fmt, args); | ||
81 | va_end(args); | ||
82 | |||
83 | /* Print the string */ | ||
84 | while (*ch != '\0') { | ||
85 | wrppmc_early_putc(*ch); | ||
86 | /* if print '\n', also print '\r' */ | ||
87 | if (*ch++ == '\n') | ||
88 | wrppmc_early_putc('\r'); | ||
89 | } | ||
90 | } | ||
91 | #endif /* WRPPMC_EARLY_DEBUG */ | ||
92 | |||
93 | void __init prom_free_prom_memory(void) | ||
94 | { | ||
95 | } | ||
96 | |||
97 | void __init plat_mem_setup(void) | ||
98 | { | ||
99 | extern void wrppmc_machine_restart(char *command); | ||
100 | extern void wrppmc_machine_halt(void); | ||
101 | |||
102 | _machine_restart = wrppmc_machine_restart; | ||
103 | _machine_halt = wrppmc_machine_halt; | ||
104 | pm_power_off = wrppmc_machine_halt; | ||
105 | |||
106 | /* This makes the operations of 'in/out[bwl]' to the | ||
107 | * physical address ( < KSEG0) can work via KSEG1 | ||
108 | */ | ||
109 | set_io_port_base(KSEG1); | ||
110 | } | ||
111 | |||
112 | const char *get_system_type(void) | ||
113 | { | ||
114 | return "Wind River PPMC (GT64120)"; | ||
115 | } | ||
116 | |||
117 | /* | ||
118 | * Initializes basic routines and structures pointers, memory size (as | ||
119 | * given by the bios and saves the command line. | ||
120 | */ | ||
121 | void __init prom_init(void) | ||
122 | { | ||
123 | add_memory_region(WRPPMC_SDRAM_SCS0_BASE, WRPPMC_SDRAM_SCS0_SIZE, BOOT_MEM_RAM); | ||
124 | add_memory_region(WRPPMC_BOOTROM_BASE, WRPPMC_BOOTROM_SIZE, BOOT_MEM_ROM_DATA); | ||
125 | |||
126 | wrppmc_early_printk("prom_init: GT64120 SDRAM Bank 0: 0x%x - 0x%08lx\n", | ||
127 | WRPPMC_SDRAM_SCS0_BASE, (WRPPMC_SDRAM_SCS0_BASE + WRPPMC_SDRAM_SCS0_SIZE)); | ||
128 | } | ||