1 files changed, 51 insertions, 0 deletions
diff --git a/arch/parisc/kernel/pa7300lc.c b/arch/parisc/kernel/pa7300lc.c
new file mode 100644
index 000000000..0d770ac83
--- /dev/null
+++ b/arch/parisc/kernel/pa7300lc.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *   linux/arch/parisc/kernel/pa7300lc.c
+ *	- PA7300LC-specific functions	
+ *
+ *   Copyright (C) 2000 Philipp Rumpf */
+
+#include <linux/sched.h>
+#include <linux/sched/debug.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;
+}