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Diffstat (limited to 'arch/ppc64/kernel/setup.c')
-rw-r--r--arch/ppc64/kernel/setup.c105
1 files changed, 31 insertions, 74 deletions
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c
index d5e4866e9ac2..5ac48bd64891 100644
--- a/arch/ppc64/kernel/setup.c
+++ b/arch/ppc64/kernel/setup.c
@@ -25,7 +25,7 @@
#include <linux/seq_file.h>
#include <linux/ioport.h>
#include <linux/console.h>
-#include <linux/version.h>
+#include <linux/utsname.h>
#include <linux/tty.h>
#include <linux/root_dev.h>
#include <linux/notifier.h>
@@ -89,14 +89,13 @@ extern void udbg_init_maple_realmode(void);
#define EARLY_DEBUG_INIT() udbg_init_maple_realmode()
#define EARLY_DEBUG_INIT() udbg_init_pmac_realmode()
#define EARLY_DEBUG_INIT() \
- do { ppc_md.udbg_putc = call_rtas_display_status_delay; } while(0)
+ do { udbg_putc = call_rtas_display_status_delay; } while(0)
#endif
/* extern void *stab; */
extern unsigned long klimit;
extern void mm_init_ppc64(void);
-extern int idle_setup(void);
extern void stab_initialize(unsigned long stab);
extern void htab_initialize(void);
extern void early_init_devtree(void *flat_dt);
@@ -109,7 +108,6 @@ int boot_cpuid = 0;
int boot_cpuid_phys = 0;
dev_t boot_dev;
u64 ppc64_pft_size;
-u64 ppc64_debug_switch;
struct ppc64_caches ppc64_caches;
EXPORT_SYMBOL_GPL(ppc64_caches);
@@ -155,34 +153,6 @@ struct screen_info screen_info = {
.orig_video_points = 16
};
-/*
- * Initialize the PPCDBG state. Called before relocation has been enabled.
- */
-void __init ppcdbg_initialize(void)
-{
- ppc64_debug_switch = PPC_DEBUG_DEFAULT; /* | PPCDBG_BUSWALK | */
- /* PPCDBG_PHBINIT | PPCDBG_MM | PPCDBG_MMINIT | PPCDBG_TCEINIT | PPCDBG_TCE */;
-}
-
-/*
- * Early boot console based on udbg
- */
-static struct console udbg_console = {
- .name = "udbg",
- .write = udbg_console_write,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-static int early_console_initialized;
-
-void __init disable_early_printk(void)
-{
- if (!early_console_initialized)
- return;
- unregister_console(&udbg_console);
- early_console_initialized = 0;
-}
-
#if defined(CONFIG_PPC_MULTIPLATFORM) && defined(CONFIG_SMP)
static int smt_enabled_cmdline;
@@ -426,12 +396,6 @@ void __init early_setup(unsigned long dt_ptr)
}
ppc_md = **mach;
- /* our udbg callbacks got overriden by the above, let's put them
- * back in. Ultimately, I want those things to be split from the
- * main ppc_md
- */
- EARLY_DEBUG_INIT();
-
DBG("Found, Initializing memory management...\n");
/*
@@ -537,15 +501,19 @@ static void __init check_for_initrd(void)
DBG(" -> check_for_initrd()\n");
- prop = (u64 *)get_property(of_chosen, "linux,initrd-start", NULL);
- if (prop != NULL) {
- initrd_start = (unsigned long)__va(*prop);
- prop = (u64 *)get_property(of_chosen, "linux,initrd-end", NULL);
+ if (of_chosen) {
+ prop = (u64 *)get_property(of_chosen,
+ "linux,initrd-start", NULL);
if (prop != NULL) {
- initrd_end = (unsigned long)__va(*prop);
- initrd_below_start_ok = 1;
- } else
- initrd_start = 0;
+ initrd_start = (unsigned long)__va(*prop);
+ prop = (u64 *)get_property(of_chosen,
+ "linux,initrd-end", NULL);
+ if (prop != NULL) {
+ initrd_end = (unsigned long)__va(*prop);
+ initrd_below_start_ok = 1;
+ } else
+ initrd_start = 0;
+ }
}
/* If we were passed an initrd, set the ROOT_DEV properly if the values
@@ -628,13 +596,12 @@ void __init setup_system(void)
* Initialize xmon
*/
#ifdef CONFIG_XMON_DEFAULT
- xmon_init();
+ xmon_init(1);
#endif
/*
* Register early console
*/
- early_console_initialized = 1;
- register_console(&udbg_console);
+ register_early_udbg_console();
/* Save unparsed command line copy for /proc/cmdline */
strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
@@ -654,7 +621,7 @@ void __init setup_system(void)
smp_release_cpus();
#endif /* defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES) */
- printk("Starting Linux PPC64 %s\n", UTS_RELEASE);
+ printk("Starting Linux PPC64 %s\n", system_utsname.version);
printk("-----------------------------------------------------\n");
printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size);
@@ -695,7 +662,6 @@ void machine_restart(char *cmd)
local_irq_disable();
while (1) ;
}
-EXPORT_SYMBOL(machine_restart);
void machine_power_off(void)
{
@@ -708,7 +674,8 @@ void machine_power_off(void)
local_irq_disable();
while (1) ;
}
-EXPORT_SYMBOL(machine_power_off);
+/* Used by the G5 thermal driver */
+EXPORT_SYMBOL_GPL(machine_power_off);
void machine_halt(void)
{
@@ -721,7 +688,6 @@ void machine_halt(void)
local_irq_disable();
while (1) ;
}
-EXPORT_SYMBOL(machine_halt);
static int ppc64_panic_event(struct notifier_block *this,
unsigned long event, void *ptr)
@@ -1072,6 +1038,8 @@ void __init setup_arch(char **cmdline_p)
irqstack_early_init();
emergency_stack_init();
+ stabs_alloc();
+
/* set up the bootmem stuff with available memory */
do_init_bootmem();
sparse_init();
@@ -1081,8 +1049,11 @@ void __init setup_arch(char **cmdline_p)
ppc_md.setup_arch();
- /* Select the correct idle loop for the platform. */
- idle_setup();
+ /* Use the default idle loop if the platform hasn't provided one. */
+ if (NULL == ppc_md.idle_loop) {
+ ppc_md.idle_loop = default_idle;
+ printk(KERN_INFO "Using default idle loop\n");
+ }
paging_init();
ppc64_boot_msg(0x15, "Setup Done");
@@ -1093,8 +1064,6 @@ void __init setup_arch(char **cmdline_p)
#define PPC64_LINUX_FUNCTION 0x0f000000
#define PPC64_IPL_MESSAGE 0xc0000000
#define PPC64_TERM_MESSAGE 0xb0000000
-#define PPC64_ATTN_MESSAGE 0xa0000000
-#define PPC64_DUMP_MESSAGE 0xd0000000
static void ppc64_do_msg(unsigned int src, const char *msg)
{
@@ -1122,20 +1091,6 @@ void ppc64_terminate_msg(unsigned int src, const char *msg)
printk("[terminate]%04x %s\n", src, msg);
}
-/* Print something that needs attention (device error, etc) */
-void ppc64_attention_msg(unsigned int src, const char *msg)
-{
- ppc64_do_msg(PPC64_LINUX_FUNCTION|PPC64_ATTN_MESSAGE|src, msg);
- printk("[attention]%04x %s\n", src, msg);
-}
-
-/* Print a dump progress message. */
-void ppc64_dump_msg(unsigned int src, const char *msg)
-{
- ppc64_do_msg(PPC64_LINUX_FUNCTION|PPC64_DUMP_MESSAGE|src, msg);
- printk("[dump]%04x %s\n", src, msg);
-}
-
/* This should only be called on processor 0 during calibrate decr */
void __init setup_default_decr(void)
{
@@ -1312,7 +1267,7 @@ void __init generic_find_legacy_serial_ports(u64 *physport,
static struct platform_device serial_device = {
.name = "serial8250",
- .id = 0,
+ .id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_ports,
},
@@ -1340,11 +1295,13 @@ static int __init early_xmon(char *p)
/* ensure xmon is enabled */
if (p) {
if (strncmp(p, "on", 2) == 0)
- xmon_init();
+ xmon_init(1);
+ if (strncmp(p, "off", 3) == 0)
+ xmon_init(0);
if (strncmp(p, "early", 5) != 0)
return 0;
}
- xmon_init();
+ xmon_init(1);
debugger(NULL);
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-09 01:35:36 +0000