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Diffstat (limited to 'arch/powerpc/platforms/chrp/setup.c')
-rw-r--r--arch/powerpc/platforms/chrp/setup.c48
1 files changed, 35 insertions, 13 deletions
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 9c08ff32229..488dbd9b51a 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -74,6 +74,9 @@ extern irqreturn_t xmon_irq(int, void *, struct pt_regs *);
extern unsigned long loops_per_jiffy;
+/* To be replaced by RTAS when available */
+static unsigned int *briq_SPOR;
+
#ifdef CONFIG_SMP
extern struct smp_ops_t chrp_smp_ops;
#endif
@@ -92,6 +95,15 @@ static const char *gg2_cachemodes[4] = {
"Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
};
+static const char *chrp_names[] = {
+ "Unknown",
+ "","","",
+ "Motorola",
+ "IBM or Longtrail",
+ "Genesi Pegasos",
+ "Total Impact Briq"
+};
+
void chrp_show_cpuinfo(struct seq_file *m)
{
int i, sdramen;
@@ -214,8 +226,7 @@ static void __init pegasos_set_l2cr(void)
/* Enable L2 cache if needed */
np = find_type_devices("cpu");
if (np != NULL) {
- unsigned int *l2cr = (unsigned int *)
- get_property (np, "l2cr", NULL);
+ const unsigned int *l2cr = get_property(np, "l2cr", NULL);
if (l2cr == NULL) {
printk ("Pegasos l2cr : no cpu l2cr property found\n");
return;
@@ -229,10 +240,18 @@ static void __init pegasos_set_l2cr(void)
}
}
+static void briq_restart(char *cmd)
+{
+ local_irq_disable();
+ if (briq_SPOR)
+ out_be32(briq_SPOR, 0);
+ for(;;);
+}
+
void __init chrp_setup_arch(void)
{
struct device_node *root = find_path_device ("/");
- char *machine = NULL;
+ const char *machine = NULL;
/* init to some ~sane value until calibrate_delay() runs */
loops_per_jiffy = 50000000/HZ;
@@ -245,11 +264,16 @@ void __init chrp_setup_arch(void)
_chrp_type = _CHRP_IBM;
} else if (machine && strncmp(machine, "MOT", 3) == 0) {
_chrp_type = _CHRP_Motorola;
+ } else if (machine && strncmp(machine, "TotalImpact,BRIQ-1", 18) == 0) {
+ _chrp_type = _CHRP_briq;
+ /* Map the SPOR register on briq and change the restart hook */
+ briq_SPOR = (unsigned int *)ioremap(0xff0000e8, 4);
+ ppc_md.restart = briq_restart;
} else {
/* Let's assume it is an IBM chrp if all else fails */
_chrp_type = _CHRP_IBM;
}
- printk("chrp type = %x\n", _chrp_type);
+ printk("chrp type = %x [%s]\n", _chrp_type, chrp_names[_chrp_type]);
rtas_initialize();
if (rtas_token("display-character") >= 0)
@@ -328,7 +352,7 @@ static void __init chrp_find_openpic(void)
struct device_node *np, *root;
int len, i, j;
int isu_size, idu_size;
- unsigned int *iranges, *opprop = NULL;
+ const unsigned int *iranges, *opprop = NULL;
int oplen = 0;
unsigned long opaddr;
int na = 1;
@@ -338,8 +362,7 @@ static void __init chrp_find_openpic(void)
return;
root = of_find_node_by_path("/");
if (root) {
- opprop = (unsigned int *) get_property
- (root, "platform-open-pic", &oplen);
+ opprop = get_property(root, "platform-open-pic", &oplen);
na = prom_n_addr_cells(root);
}
if (opprop && oplen >= na * sizeof(unsigned int)) {
@@ -356,7 +379,7 @@ static void __init chrp_find_openpic(void)
printk(KERN_INFO "OpenPIC at %lx\n", opaddr);
- iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len);
+ iranges = get_property(np, "interrupt-ranges", &len);
if (iranges == NULL)
len = 0; /* non-distributed mpic */
else
@@ -442,8 +465,8 @@ static void __init chrp_find_8259(void)
* from anyway
*/
for (np = find_devices("pci"); np != NULL; np = np->next) {
- unsigned int *addrp = (unsigned int *)
- get_property(np, "8259-interrupt-acknowledge", NULL);
+ const unsigned int *addrp = get_property(np,
+ "8259-interrupt-acknowledge", NULL);
if (addrp == NULL)
continue;
@@ -502,7 +525,7 @@ void __init
chrp_init2(void)
{
struct device_node *device;
- unsigned int *p = NULL;
+ const unsigned int *p = NULL;
#ifdef CONFIG_NVRAM
chrp_nvram_init();
@@ -520,8 +543,7 @@ chrp_init2(void)
*/
device = find_devices("rtas");
if (device)
- p = (unsigned int *) get_property
- (device, "rtas-event-scan-rate", NULL);
+ p = get_property(device, "rtas-event-scan-rate", NULL);
if (p && *p) {
/*
* Arrange to call chrp_event_scan at least *p times