1 files changed, 112 insertions, 0 deletions
diff --git a/grub-core/kern/uboot/hw.c b/grub-core/kern/uboot/hw.c
new file mode 100644
index 0000000..272b83b
--- /dev/null
+++ b/grub-core/kern/uboot/hw.c
@@ -0,0 +1,112 @@
+/* hw.c - U-Boot hardware discovery */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/kernel.h>
+#include <grub/memory.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/offsets.h>
+#include <grub/machine/kernel.h>
+#include <grub/uboot/disk.h>
+#include <grub/uboot/uboot.h>
+#include <grub/uboot/api_public.h>
+
+grub_addr_t start_of_ram;
+
+/*
+ * grub_uboot_probe_memory():
+ *   Queries U-Boot for available memory regions.
+ *
+ *   Sets up heap near the image in memory and sets up "start_of_ram".
+ */
+void
+grub_uboot_mm_init (void)
+{
+  struct sys_info *si = grub_uboot_get_sys_info ();
+
+  grub_mm_init_region ((void *) grub_modules_get_end (),
+		       GRUB_KERNEL_MACHINE_HEAP_SIZE);
+
+  if (si && (si->mr_no != 0))
+    {
+      int i;
+      start_of_ram = GRUB_UINT_MAX;
+
+      for (i = 0; i < si->mr_no; i++)
+	if ((si->mr[i].flags & MR_ATTR_MASK) == MR_ATTR_DRAM)
+	  if (si->mr[i].start < start_of_ram)
+	    start_of_ram = si->mr[i].start;
+    }
+}
+
+/*
+ * grub_uboot_probe_hardware():
+ */
+grub_err_t
+grub_uboot_probe_hardware (void)
+{
+  int devcount, i;
+
+  devcount = grub_uboot_dev_enum ();
+  grub_dprintf ("init", "%d devices found\n", devcount);
+
+  for (i = 0; i < devcount; i++)
+    {
+      struct device_info *devinfo = grub_uboot_dev_get (i);
+
+      grub_dprintf ("init", "device handle: %d\n", i);
+      grub_dprintf ("init", "  cookie\t= 0x%08x\n",
+		    (grub_uint32_t) devinfo->cookie);
+
+      if (devinfo->type & DEV_TYP_STOR)
+	{
+	  grub_dprintf ("init", "  type\t\t= DISK\n");
+	  grub_ubootdisk_register (devinfo);
+	}
+      else if (devinfo->type & DEV_TYP_NET)
+	{
+	  /* Dealt with in ubootnet module. */
+	  grub_dprintf ("init", "  type\t\t= NET (not supported yet)\n");
+	}
+      else
+	{
+	  grub_dprintf ("init", "%s: unknown device type", __FUNCTION__);
+	}
+    }
+
+  return GRUB_ERR_NONE;
+}
+
+grub_err_t
+grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data)
+{
+  int i;
+  struct sys_info *si = grub_uboot_get_sys_info ();
+
+  if (!si || (si->mr_no < 1))
+    return GRUB_ERR_BUG;
+
+  /* Iterate and call `hook'.  */
+  for (i = 0; i < si->mr_no; i++)
+    if ((si->mr[i].flags & MR_ATTR_MASK) == MR_ATTR_DRAM)
+      hook (si->mr[i].start, si->mr[i].size, GRUB_MEMORY_AVAILABLE,
+	    hook_data);
+
+  return GRUB_ERR_NONE;
+}