From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Mon, 8 May 2017 22:14:28 +0200
Subject: [PATCH] arm_coreboot: Support EHCI.

---
 grub-core/Makefile.core.def  |  2 ++
 grub-core/bus/usb/ehci-fdt.c | 45 ++++++++++++++++++++++++++++++++++++++++++++
 grub-core/bus/usb/usbtrans.c |  2 +-
 include/grub/usb.h           |  4 ++++
 gentpl.py                    |  2 +-
 5 files changed, 53 insertions(+), 2 deletions(-)
 create mode 100644 grub-core/bus/usb/ehci-fdt.c

diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 4745eb4d93e..5ce506597a6 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -593,8 +593,10 @@ module = {
 module = {
   name = ehci;
   common = bus/usb/ehci.c;
+  arm_coreboot = bus/usb/ehci-fdt.c;
   pci = bus/usb/ehci-pci.c;
   enable = pci;
+  enable = arm_coreboot;
 };
 
 module = {
diff --git a/grub-core/bus/usb/ehci-fdt.c b/grub-core/bus/usb/ehci-fdt.c
new file mode 100644
index 00000000000..29b50bdd5c3
--- /dev/null
+++ b/grub-core/bus/usb/ehci-fdt.c
@@ -0,0 +1,45 @@
+/* ehci.c - EHCI Support.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2011  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/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/usb.h>
+#include <grub/fdtbus.h>
+
+static grub_err_t
+ehci_attach(const struct grub_fdtbus_dev *dev)
+{
+  grub_dprintf ("ehci", "Found generic-ehci\n");
+
+  grub_ehci_init_device (grub_fdtbus_map_reg (dev, 0, 0));
+  return 0;
+}
+
+struct grub_fdtbus_driver ehci =
+{
+  .compatible = "generic-ehci",
+  .attach = ehci_attach
+};
+
+void
+grub_ehci_pci_scan (void)
+{
+  grub_fdtbus_register (&ehci);
+}
diff --git a/grub-core/bus/usb/usbtrans.c b/grub-core/bus/usb/usbtrans.c
index 9266e49311c..85f081fffb3 100644
--- a/grub-core/bus/usb/usbtrans.c
+++ b/grub-core/bus/usb/usbtrans.c
@@ -18,7 +18,7 @@
  */
 
 #include <grub/dl.h>
-#include <grub/pci.h>
+#include <grub/dma.h>
 #include <grub/mm.h>
 #include <grub/misc.h>
 #include <grub/usb.h>
diff --git a/include/grub/usb.h b/include/grub/usb.h
index 11d96481ff6..512ae1dd0e6 100644
--- a/include/grub/usb.h
+++ b/include/grub/usb.h
@@ -321,5 +321,9 @@ grub_usb_err_t
 grub_usb_check_transfer (grub_usb_transfer_t trans, grub_size_t *actual);
 void
 grub_usb_cancel_transfer (grub_usb_transfer_t trans);
+void
+grub_ehci_init_device (volatile void *regs);
+void
+grub_ehci_pci_scan (void);
 
 #endif /* GRUB_USB_H */
diff --git a/gentpl.py b/gentpl.py
index ed268178b4d..da67965a41a 100644
--- a/gentpl.py
+++ b/gentpl.py
@@ -63,7 +63,7 @@ GROUPS["cmos"] = GROUPS["x86"][:] + ["mips_loongson", "mips_qemu_mips",
                                      "sparc64_ieee1275", "powerpc_ieee1275"]
 GROUPS["cmos"].remove("i386_efi"); GROUPS["cmos"].remove("x86_64_efi");
 GROUPS["pci"]      = GROUPS["x86"] + ["mips_loongson"]
-GROUPS["usb"]      = GROUPS["pci"]
+GROUPS["usb"]      = GROUPS["pci"] + ["arm_coreboot"]
 
 # If gfxterm is main output console integrate it into kernel
 GROUPS["videoinkernel"] = ["mips_loongson", "i386_coreboot", "arm_coreboot" ]