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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/mips/fw/arc/init.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/fw/arc/init.c')
-rw-r--r--arch/mips/fw/arc/init.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c
new file mode 100644
index 0000000000..f9d1dea9b2
--- /dev/null
+++ b/arch/mips/fw/arc/init.c
@@ -0,0 +1,51 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * PROM library initialisation code.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <asm/bootinfo.h>
+#include <asm/sgialib.h>
+#include <asm/smp-ops.h>
+
+#undef DEBUG_PROM_INIT
+
+/* Master romvec interface. */
+struct linux_romvec *romvec;
+
+#if defined(CONFIG_64BIT) && defined(CONFIG_FW_ARC32)
+/* stack for calling 32bit ARC prom */
+u64 o32_stk[4096];
+#endif
+
+void __init prom_init(void)
+{
+ PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK;
+
+ romvec = ROMVECTOR;
+
+ if (pb->magic != 0x53435241) {
+ printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n",
+ (unsigned long) pb->magic);
+ while(1)
+ ;
+ }
+
+ prom_init_cmdline(fw_arg0, (LONG *)fw_arg1);
+ prom_identify_arch();
+ printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n",
+ pb->ver, pb->rev);
+ prom_meminit();
+
+#ifdef DEBUG_PROM_INIT
+ pr_info("Press a key to reboot\n");
+ ArcRead(0, &c, 1, &cnt);
+ ArcEnterInteractiveMode();
+#endif
+}