From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 18:29:51 +0200
Subject: Adding upstream version 2.06.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 grub-core/kern/mips/qemu_mips/init.c | 105 +++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 grub-core/kern/mips/qemu_mips/init.c

(limited to 'grub-core/kern/mips/qemu_mips')

diff --git a/grub-core/kern/mips/qemu_mips/init.c b/grub-core/kern/mips/qemu_mips/init.c
new file mode 100644
index 0000000..be88b77
--- /dev/null
+++ b/grub-core/kern/mips/qemu_mips/init.c
@@ -0,0 +1,105 @@
+#include <grub/kernel.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/time.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/machine/memory.h>
+#include <grub/machine/kernel.h>
+#include <grub/machine/console.h>
+#include <grub/cpu/memory.h>
+#include <grub/memory.h>
+#include <grub/video.h>
+#include <grub/terminfo.h>
+#include <grub/keyboard_layouts.h>
+#include <grub/serial.h>
+#include <grub/loader.h>
+#include <grub/at_keyboard.h>
+
+static inline int
+probe_mem (grub_addr_t addr)
+{
+  volatile grub_uint8_t *ptr = (grub_uint8_t *) (0xa0000000 | addr);
+  grub_uint8_t c = *ptr;
+  *ptr = 0xAA;
+  if (*ptr != 0xAA)
+    return 0;
+  *ptr = 0x55;
+  if (*ptr != 0x55)
+    return 0;
+  *ptr = c;
+  return 1;
+}
+
+void
+grub_machine_init (void)
+{
+  grub_addr_t modend;
+
+  if (grub_arch_memsize == 0)
+    {
+      int i;
+      
+      for (i = 27; i >= 0; i--)
+	if (probe_mem (grub_arch_memsize | (1 << i)))
+	  grub_arch_memsize |= (1 << i);
+      grub_arch_memsize++;
+    }
+
+  /* FIXME: measure this.  */
+  grub_arch_cpuclock = 200000000;
+
+  modend = grub_modules_get_end ();
+  grub_mm_init_region ((void *) modend, grub_arch_memsize
+		       - (modend - GRUB_ARCH_LOWMEMVSTART));
+
+  grub_install_get_time_ms (grub_rtc_get_time_ms);
+
+  grub_keylayouts_init ();
+  grub_at_keyboard_init ();
+
+  grub_qemu_init_cirrus ();
+  grub_vga_text_init ();
+
+  grub_terminfo_init ();
+  grub_serial_init ();
+
+  grub_boot_init ();
+}
+
+void
+grub_machine_fini (int flags __attribute__ ((unused)))
+{
+}
+
+void
+grub_exit (void)
+{
+  grub_halt ();
+}
+
+void
+grub_halt (void)
+{
+  grub_outl (42, 0xbfbf0004);
+  while (1);
+}
+
+grub_err_t 
+grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data)
+{
+  hook (0, grub_arch_memsize, GRUB_MEMORY_AVAILABLE, hook_data);
+  return GRUB_ERR_NONE;
+}
+
+void
+grub_machine_get_bootlocation (char **device __attribute__ ((unused)),
+			       char **path __attribute__ ((unused)))
+{
+}
+
+extern char _end[];
+grub_addr_t grub_modbase = (grub_addr_t) _end;
+
-- 
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