5 #include <linux/config.h>
6 #include <linux/init.h>
7 #include <linux/kexec.h>
13 #include <asm-m68k/machdep.h>
22 /* We export this macro for external modules like Alsa to know if
23 * ppc_md.feature_call is implemented or not
25 #define CONFIG_PPC_HAS_FEATURE_CALLS
27 struct machdep_calls {
28 void (*setup_arch)(void);
29 /* Optional, may be NULL. */
30 int (*show_cpuinfo)(struct seq_file *m);
31 int (*show_percpuinfo)(struct seq_file *m, int i);
32 /* Optional, may be NULL. */
33 unsigned int (*irq_canonicalize)(unsigned int irq);
34 void (*init_IRQ)(void);
35 int (*get_irq)(struct pt_regs *);
37 /* A general init function, called by ppc_init in init/main.c.
41 void (*restart)(char *cmd);
42 void (*power_off)(void);
46 void (*power_save)(void);
48 long (*time_init)(void); /* Optional, may be NULL */
49 int (*set_rtc_time)(unsigned long nowtime);
50 unsigned long (*get_rtc_time)(void);
51 unsigned char (*rtc_read_val)(int addr);
52 void (*rtc_write_val)(int addr, unsigned char val);
53 void (*calibrate_decr)(void);
55 void (*heartbeat)(void);
56 unsigned long heartbeat_reset;
57 unsigned long heartbeat_count;
59 unsigned long (*find_end_of_memory)(void);
60 void (*setup_io_mappings)(void);
62 void (*early_serial_map)(void);
63 void (*progress)(char *, unsigned short);
64 void (*kgdb_map_scc)(void);
66 unsigned char (*nvram_read_val)(int addr);
67 void (*nvram_write_val)(int addr, unsigned char val);
68 void (*nvram_sync)(void);
71 * optional PCI "hooks"
74 /* Called after scanning the bus, before allocating resources */
75 void (*pcibios_fixup)(void);
77 /* Called after PPC generic resource fixup to perform
78 machine specific fixups */
79 void (*pcibios_fixup_resources)(struct pci_dev *);
81 /* Called for each PCI bus in the system when it's probed */
82 void (*pcibios_fixup_bus)(struct pci_bus *);
84 /* Called when pci_enable_device() is called (initial=0) or
85 * when a device with no assigned resource is found (initial=1).
86 * Returns 0 to allow assignment/enabling of the device. */
87 int (*pcibios_enable_device_hook)(struct pci_dev *, int initial);
89 /* For interrupt routing */
90 unsigned char (*pci_swizzle)(struct pci_dev *, unsigned char *);
91 int (*pci_map_irq)(struct pci_dev *, unsigned char, unsigned char);
93 /* Called in indirect_* to avoid touching devices */
94 int (*pci_exclude_device)(unsigned char, unsigned char);
96 /* Called at then very end of pcibios_init() */
97 void (*pcibios_after_init)(void);
99 /* Get access protection for /dev/mem */
100 pgprot_t (*phys_mem_access_prot)(struct file *file,
105 /* this is for modules, since _machine can be a define -- Cort */
108 /* Motherboard/chipset features. This is a kind of general purpose
109 * hook used to control some machine specific features (like reset
110 * lines, chip power control, etc...).
112 long (*feature_call)(unsigned int feature, ...);
115 /* functions for dealing with other cpus */
116 struct smp_ops_t *smp_ops;
117 #endif /* CONFIG_SMP */
120 /* Called to shutdown machine specific hardware not already controlled
122 * XXX Should we move this one out of kexec scope?
124 void (*machine_shutdown)(void);
126 /* Called to do the minimal shutdown needed to run a kexec'd kernel
127 * to run successfully.
128 * XXX Should we move this one out of kexec scope?
130 void (*machine_crash_shutdown)(void);
132 /* Called to do what every setup is needed on image and the
133 * reboot code buffer. Returns 0 on success.
134 * Provide your own (maybe dummy) implementation if your platform
135 * claims to support kexec.
137 int (*machine_kexec_prepare)(struct kimage *image);
139 /* Called to handle any machine specific cleanup on image */
140 void (*machine_kexec_cleanup)(struct kimage *image);
142 /* Called to perform the _real_ kexec.
143 * Do NOT allocate memory or fail here. We are past the point of
146 void (*machine_kexec)(struct kimage *image);
147 #endif /* CONFIG_KEXEC */
150 extern struct machdep_calls ppc_md;
151 extern char cmd_line[COMMAND_LINE_SIZE];
153 extern void setup_pci_ptrs(void);
156 * Power macintoshes have either a CUDA or a PMU controlling
157 * system reset, power, NVRAM, RTC.
159 typedef enum sys_ctrler_kind {
160 SYS_CTRLER_UNKNOWN = 0,
166 extern sys_ctrler_t sys_ctrler;
170 void (*message_pass)(int target, int msg);
172 void (*kick_cpu)(int nr);
173 void (*setup_cpu)(int nr);
174 void (*space_timers)(int nr);
175 void (*take_timebase)(void);
176 void (*give_timebase)(void);
179 /* Poor default implementations */
180 extern void __devinit smp_generic_give_timebase(void);
181 extern void __devinit smp_generic_take_timebase(void);
182 #endif /* CONFIG_SMP */
184 #endif /* _PPC_MACHDEP_H */
185 #endif /* __KERNEL__ */