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authorMatt DeVillier <matt.devillier@gmail.com>2015-10-20 19:36:09 -0500
committerMartin Roth <martinroth@google.com>2016-05-31 21:15:27 +0200
commita87fcabd2efe49c8035b76146401e190a0ea6593 (patch)
tree9cbb2fcef19484ebf5c96aa6211468c25d09a1d2 /src/mainboard/google/ninja/chromeos.c
parent4acb0e774220c0705a71689b6620c976297d417c (diff)
downloadcoreboot-a87fcabd2efe49c8035b76146401e190a0ea6593.tar.xz
google/ninja: Upstream AOpen Chromebox Commerical
Migrate google/ninja (AOpen Chromebox Commerical) from Chromium tree to upstream, using google/rambi as a reference. original source: branch firmware-ninja-5216.383.B commit 582a393 [Ninja, Sumo: Add SPD source for Hynix H5TC4G63CFR-PBA] TEST=built and booted Linux on ninja with full functionality blobs required for working image: VGA BIOS (vgabios.bin) firmware descriptor (ifd.bin) Intel ME firmware (me.bin) MRC (mrc.elf) external reference code (refcode.elf) Change-Id: I0f1892c24c08fa2d53185b2cf8b6f5a9001b2397 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/14950 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/mainboard/google/ninja/chromeos.c')
-rw-r--r--src/mainboard/google/ninja/chromeos.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/mainboard/google/ninja/chromeos.c b/src/mainboard/google/ninja/chromeos.c
new file mode 100644
index 0000000000..baafb6f798
--- /dev/null
+++ b/src/mainboard/google/ninja/chromeos.c
@@ -0,0 +1,103 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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.
+ */
+
+#include <string.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <soc/gpio.h>
+
+#if CONFIG_EC_GOOGLE_CHROMEEC
+#include "ec.h"
+#include <ec/google/chromeec/ec.h>
+#endif
+
+/* The WP status pin lives on GPIO_SSUS_6 which is pad 36 in the SUS well. */
+#define WP_STATUS_PAD 36
+
+#ifndef __PRE_RAM__
+#include <boot/coreboot_tables.h>
+
+#define ACTIVE_LOW 0
+#define ACTIVE_HIGH 1
+
+int get_lid_switch(void)
+{
+#if CONFIG_EC_GOOGLE_CHROMEEC
+ u8 ec_switches = inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SWITCHES);
+
+ return !!(ec_switches & EC_SWITCH_LID_OPEN);
+#else
+ /* Default to force open. */
+ return 1;
+#endif
+}
+
+void fill_lb_gpios(struct lb_gpios *gpios)
+{
+ struct lb_gpio chromeos_gpios[] = {
+ {ssus_get_gpio(WP_STATUS_PAD), ACTIVE_HIGH, 0, "write protect"},
+ {-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
+ {-1, ACTIVE_HIGH, get_developer_mode_switch(), "developer"},
+ {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
+ {-1, ACTIVE_HIGH, 0, "power"},
+ {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
+ };
+ lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
+}
+#endif
+
+int get_developer_mode_switch(void)
+{
+ return 0;
+}
+
+int get_recovery_mode_switch(void)
+{
+#if CONFIG_EC_GOOGLE_CHROMEEC
+ u8 ec_switches = inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SWITCHES);
+ u32 ec_events;
+
+ /* If a switch is set, we don't need to look at events. */
+ if (ec_switches & (EC_SWITCH_DEDICATED_RECOVERY))
+ return 1;
+
+ /* Else check if the EC has posted the keyboard recovery event. */
+ ec_events = google_chromeec_get_events_b();
+
+ return !!(ec_events &
+ EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
+#else
+ return 0;
+#endif
+}
+
+int get_write_protect_state(void)
+{
+ /*
+ * The vboot loader queries this function in romstage. The GPIOs have
+ * not been set up yet as that configuration is done in ramstage. The
+ * hardware defaults to an input but there is a 20K pulldown. Externally
+ * there is a 10K pullup. Disable the internal pull in romstage so that
+ * there isn't any ambiguity in the reading.
+ */
+#if defined(__PRE_RAM__)
+ ssus_disable_internal_pull(WP_STATUS_PAD);
+#endif
+
+ /* WP is enabled when the pin is reading high. */
+ return ssus_get_gpio(WP_STATUS_PAD);
+} \ No newline at end of file