diff options
Diffstat (limited to 'arch/parisc/kernel/pa7300lc.c')
-rw-r--r-- | arch/parisc/kernel/pa7300lc.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/parisc/kernel/pa7300lc.c b/arch/parisc/kernel/pa7300lc.c new file mode 100644 index 000000000000..8a89780223aa --- /dev/null +++ b/arch/parisc/kernel/pa7300lc.c @@ -0,0 +1,49 @@ +/* + * linux/arch/parisc/kernel/pa7300lc.c + * - PA7300LC-specific functions + * + * Copyright (C) 2000 Philipp Rumpf */ + +#include <linux/sched.h> +#include <linux/smp.h> +#include <linux/kernel.h> +#include <asm/io.h> +#include <asm/ptrace.h> +#include <asm/machdep.h> + +/* CPU register indices */ + +#define MIOC_STATUS 0xf040 +#define MIOC_CONTROL 0xf080 +#define MDERRADD 0xf0e0 +#define DMAERR 0xf0e8 +#define DIOERR 0xf0ec +#define HIDMAMEM 0xf0f4 + +/* this returns the HPA of the CPU it was called on */ +static u32 cpu_hpa(void) +{ + return 0xfffb0000; +} + +static void pa7300lc_lpmc(int code, struct pt_regs *regs) +{ + u32 hpa; + printk(KERN_WARNING "LPMC on CPU %d\n", smp_processor_id()); + + show_regs(regs); + + hpa = cpu_hpa(); + printk(KERN_WARNING + "MIOC_CONTROL %08x\n" "MIOC_STATUS %08x\n" + "MDERRADD %08x\n" "DMAERR %08x\n" + "DIOERR %08x\n" "HIDMAMEM %08x\n", + gsc_readl(hpa+MIOC_CONTROL), gsc_readl(hpa+MIOC_STATUS), + gsc_readl(hpa+MDERRADD), gsc_readl(hpa+DMAERR), + gsc_readl(hpa+DIOERR), gsc_readl(hpa+HIDMAMEM)); +} + +void pa7300lc_init(void) +{ + cpu_lpmc = pa7300lc_lpmc; +} |