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authorAaron Durbin <adurbin@chromium.org>2016-07-25 21:31:41 -0500
committerDuncan Laurie <dlaurie@chromium.org>2016-07-30 01:36:32 +0200
commitb0f81518b5c17466bc95ebdef292e82c4b76bc88 (patch)
tree7174d0006c9a8450ada5aeb7c6fe6377407e96a6 /src/vendorcode
parent212820c8d728c59fa3228ce92bc1d549b232e35a (diff)
downloadcoreboot-b0f81518b5c17466bc95ebdef292e82c4b76bc88.tar.xz
chromeos mainboards: remove chromeos.asl
Use the ACPI generator for creating the Chrome OS gpio package. Each mainboard has its own list of Chrome OS gpios that are fed into a helper to generate the ACPI external OIPG package. Additionally, the common chromeos.asl is now conditionally included based on CONFIG_CHROMEOS. Change-Id: I1d3d951964374a9d43521879d4c265fa513920d2 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15909 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/vendorcode')
-rw-r--r--src/vendorcode/google/chromeos/Makefile.inc1
-rw-r--r--src/vendorcode/google/chromeos/acpi.c43
-rw-r--r--src/vendorcode/google/chromeos/acpi/chromeos.asl6
-rw-r--r--src/vendorcode/google/chromeos/chromeos.h72
4 files changed, 122 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/Makefile.inc b/src/vendorcode/google/chromeos/Makefile.inc
index dffbcd5b23..c94d6abd7d 100644
--- a/src/vendorcode/google/chromeos/Makefile.inc
+++ b/src/vendorcode/google/chromeos/Makefile.inc
@@ -20,6 +20,7 @@ ramstage-y += chromeos.c
ramstage-$(CONFIG_ELOG) += elog.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += gnvs.c
+ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c
ramstage-$(CONFIG_CHROMEOS_RAMOOPS) += ramoops.c
romstage-y += vpd_decode.c
ramstage-y += vpd_decode.c cros_vpd.c vpd_mac.c vpd_serialno.c vpd_calibration.c
diff --git a/src/vendorcode/google/chromeos/acpi.c b/src/vendorcode/google/chromeos/acpi.c
new file mode 100644
index 0000000000..6605809023
--- /dev/null
+++ b/src/vendorcode/google/chromeos/acpi.c
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 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 <arch/acpigen.h>
+#include "chromeos.h"
+
+void chromeos_acpi_gpio_generate(const struct cros_gpio *gpios, size_t num)
+{
+ size_t i;
+
+ acpigen_write_scope("\\");
+ acpigen_write_name("OIPG");
+
+ acpigen_write_package(num);
+ for (i = 0; i < num; i++) {
+ acpigen_write_package(4);
+ acpigen_write_integer(gpios[i].type);
+ acpigen_write_integer(gpios[i].polarity);
+ acpigen_write_integer(gpios[i].gpio_num);
+ acpigen_write_string(gpios[i].device);
+ acpigen_pop_len();
+ }
+ acpigen_pop_len();
+
+ acpigen_pop_len();
+}
+
+void chromeos_dsdt_generator(struct device *dev)
+{
+ mainboard_chromeos_acpi_generate();
+}
diff --git a/src/vendorcode/google/chromeos/acpi/chromeos.asl b/src/vendorcode/google/chromeos/acpi/chromeos.asl
index 7d62f4a728..44d9d155e3 100644
--- a/src/vendorcode/google/chromeos/acpi/chromeos.asl
+++ b/src/vendorcode/google/chromeos/acpi/chromeos.asl
@@ -15,6 +15,11 @@
#include <vboot/vbnv_layout.h>
+#if IS_ENABLED(CONFIG_CHROMEOS)
+
+/* GPIO package generated at run time. */
+External (OIPG)
+
Device (CRHW)
{
Name(_HID, EISAID("GGL0001"))
@@ -107,3 +112,4 @@ Device (CRHW)
}
#include "ramoops.asl"
+#endif
diff --git a/src/vendorcode/google/chromeos/chromeos.h b/src/vendorcode/google/chromeos/chromeos.h
index 0a93ccd307..fd845bfae1 100644
--- a/src/vendorcode/google/chromeos/chromeos.h
+++ b/src/vendorcode/google/chromeos/chromeos.h
@@ -19,6 +19,7 @@
#include <stddef.h>
#include <stdint.h>
#include <bootmode.h>
+#include <device/device.h>
#include <rules.h>
#include <vboot/misc.h>
#include <vboot/vboot_common.h>
@@ -53,4 +54,75 @@ static inline void chromeos_reserve_ram_oops(struct device *dev, int idx) {}
void cbmem_add_vpd_calibration_data(void);
+/*
+ * Create the OIPG package containing the Chrome OS gpios described by
+ * the chromeos_gpio array.
+ */
+struct cros_gpio;
+void chromeos_acpi_gpio_generate(const struct cros_gpio *gpios, size_t num);
+
+/*
+ * Common helper function and delcarations for mainboards to use to generate
+ * ACPI-specific Chrome OS needs.
+ */
+void mainboard_chromeos_acpi_generate(void);
+#if IS_ENABLED(CONFIG_CHROMEOS)
+void chromeos_dsdt_generator(struct device *dev);
+#else
+#define chromeos_dsdt_generator DEVICE_NOOP
+#endif
+
+enum {
+ CROS_GPIO_REC = 1, /* Recovery */
+ CROS_GPIO_DEV = 2, /* Developer */
+ CROS_GPIO_WP = 3, /* Write Protect */
+
+ CROS_GPIO_ACTIVE_LOW = 0,
+ CROS_GPIO_ACTIVE_HIGH = 1,
+
+ CROS_GPIO_VIRTUAL = -1,
+};
+
+struct cros_gpio {
+ int type;
+ int polarity;
+ int gpio_num;
+ const char *device;
+};
+
+#define CROS_GPIO_INITIALIZER(typ, pol, num, dev) \
+ { \
+ .type = (typ), \
+ .polarity = (pol), \
+ .gpio_num = (num), \
+ .device = (dev), \
+ }
+
+#define CROS_GPIO_REC_INITIALIZER(pol, num, dev) \
+ CROS_GPIO_INITIALIZER(CROS_GPIO_REC, pol, num, dev)
+
+#define CROS_GPIO_REC_AL(num, dev) \
+ CROS_GPIO_REC_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
+
+#define CROS_GPIO_REC_AH(num, dev) \
+ CROS_GPIO_REC_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
+
+#define CROS_GPIO_DEV_INITIALIZER(pol, num, dev) \
+ CROS_GPIO_INITIALIZER(CROS_GPIO_DEV, pol, num, dev)
+
+#define CROS_GPIO_DEV_AL(num, dev) \
+ CROS_GPIO_DEV_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
+
+#define CROS_GPIO_DEV_AH(num, dev) \
+ CROS_GPIO_DEV_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
+
+#define CROS_GPIO_WP_INITIALIZER(pol, num, dev) \
+ CROS_GPIO_INITIALIZER(CROS_GPIO_WP, pol, num, dev)
+
+#define CROS_GPIO_WP_AL(num, dev) \
+ CROS_GPIO_WP_INITIALIZER(CROS_GPIO_ACTIVE_LOW, num, dev)
+
+#define CROS_GPIO_WP_AH(num, dev) \
+ CROS_GPIO_WP_INITIALIZER(CROS_GPIO_ACTIVE_HIGH, num, dev)
+
#endif /* __CHROMEOS_H__ */