diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-07-04 14:16:28 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-07-07 20:19:15 +1000 |
| commit | 26c5032eaa64090b2a01973b0c6ea9e7f6a80fa7 (patch) | |
| tree | 61cde3e5c0c5c7fe3e0cf89be2f2d5d1b9d35379 /arch/powerpc/platforms/chrp/setup.c | |
| parent | f704b8d1f080ee71b7a9a88bcf585e7dd4272f4b (diff) | |
| download | linux-26c5032eaa64090b2a01973b0c6ea9e7f6a80fa7.tar.gz | |
[POWERPC] Add briq support to CHRP
The support for Briq machines has been floating around as patches for
ages. This cleans it up and adds it once for all.
Some of this is based on initial code provided by Karsten Jeppesen
<karsten@jeppesens.com> and mostly rewritten from scratch by me.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/chrp/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/chrp/setup.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index 9c08ff3222900..be39742db809b 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; @@ -229,6 +241,14 @@ 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 ("/"); @@ -245,11 +265,16 @@ 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) |