Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Carsten Langgaard, carstenl@mips.com
4 * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved.
5 *
6 * Thomas Horsten <thh@lasat.com>
7 * Copyright (C) 2000 LASAT Networks A/S.
8 *
9 * Brian Murphy <brian@murphy.dk>
10 *
11 * Lasat specific setup.
12 */
13#include <linux/init.h>
14#include <linux/sched.h>
15#include <linux/pci.h>
16#include <linux/interrupt.h>
17#include <linux/tty.h>
18
19#include <asm/time.h>
20#include <asm/cpu.h>
21#include <asm/bootinfo.h>
22#include <asm/irq.h>
23#include <asm/lasat/lasat.h>
24#include <asm/lasat/serial.h>
25
26#ifdef CONFIG_PICVUE
27#include <linux/notifier.h>
28#endif
29
30#include "ds1603.h"
31#include <asm/lasat/ds1603.h>
32#include <asm/lasat/picvue.h>
33#include <asm/lasat/eeprom.h>
34
35#include "prom.h"
36
37int lasat_command_line;
38void lasatint_init(void);
39
40extern void lasat_reboot_setup(void);
41extern void pcisetup(void);
42extern void edhac_init(void *, void *, void *);
43extern void addrflt_init(void);
44
45struct lasat_misc lasat_misc_info[N_MACHTYPES] = {
46 {
47 .reset_reg = (void *)KSEG1ADDR(0x1c840000),
48 .flash_wp_reg = (void *)KSEG1ADDR(0x1c800000), 2
49 }, {
50 .reset_reg = (void *)KSEG1ADDR(0x11080000),
51 .flash_wp_reg = (void *)KSEG1ADDR(0x11000000), 6
52 }
53};
54
55struct lasat_misc *lasat_misc;
56
57#ifdef CONFIG_DS1603
58static struct ds_defs ds_defs[N_MACHTYPES] = {
59 { (void *)DS1603_REG_100, (void *)DS1603_REG_100,
60 DS1603_RST_100, DS1603_CLK_100, DS1603_DATA_100,
61 DS1603_DATA_SHIFT_100, 0, 0 },
62 { (void *)DS1603_REG_200, (void *)DS1603_DATA_REG_200,
63 DS1603_RST_200, DS1603_CLK_200, DS1603_DATA_200,
64 DS1603_DATA_READ_SHIFT_200, 1, 2000 }
65};
66#endif
67
68#ifdef CONFIG_PICVUE
69#include "picvue.h"
70static struct pvc_defs pvc_defs[N_MACHTYPES] = {
71 { (void *)PVC_REG_100, PVC_DATA_SHIFT_100, PVC_DATA_M_100,
72 PVC_E_100, PVC_RW_100, PVC_RS_100 },
73 { (void *)PVC_REG_200, PVC_DATA_SHIFT_200, PVC_DATA_M_200,
74 PVC_E_200, PVC_RW_200, PVC_RS_200 }
75};
76#endif
77
78static int lasat_panic_display(struct notifier_block *this,
79 unsigned long event, void *ptr)
80{
81#ifdef CONFIG_PICVUE
82 unsigned char *string = ptr;
83 if (string == NULL)
84 string = "Kernel Panic";
85 pvc_dump_string(string);
86#endif
87 return NOTIFY_DONE;
88}
89
90static int lasat_panic_prom_monitor(struct notifier_block *this,
91 unsigned long event, void *ptr)
92{
93 prom_monitor();
94 return NOTIFY_DONE;
95}
96
97static struct notifier_block lasat_panic_block[] =
98{
99 {
100 .notifier_call = lasat_panic_display,
101 .priority = INT_MAX
102 }, {
103 .notifier_call = lasat_panic_prom_monitor,
104 .priority = INT_MIN
105 }
106};
107
108void __init plat_time_init(void)
109{
110 mips_hpt_frequency = lasat_board_info.li_cpu_hz / 2;
111
112 change_c0_status(ST0_IM, IE_IRQ0);
113}
114
115void __init plat_mem_setup(void)
116{
117 int i;
118 int lasat_type = IS_LASAT_200() ? 1 : 0;
119
120 lasat_misc = &lasat_misc_info[lasat_type];
121#ifdef CONFIG_PICVUE
122 picvue = &pvc_defs[lasat_type];
123#endif
124
125 /* Set up panic notifier */
126 for (i = 0; i < ARRAY_SIZE(lasat_panic_block); i++)
127 atomic_notifier_chain_register(&panic_notifier_list,
128 &lasat_panic_block[i]);
129
130 lasat_reboot_setup();
131
132#ifdef CONFIG_DS1603
133 ds1603 = &ds_defs[lasat_type];
134#endif
135
136#ifdef DYNAMIC_SERIAL_INIT
137 serial_init();
138#endif
139
140 pr_info("Lasat specific initialization complete\n");
141}