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authorVadim Bendebury <vbendeb@google.com>2014-12-06 10:44:58 -0800
committerPatrick Georgi <pgeorgi@google.com>2015-04-15 21:56:05 +0200
commit6fe4e5e34c584f7f4ad2c071b311e6b6a878b623 (patch)
treef994cd6055d5823cd2d908f5b467e96362a9c826 /src/mainboard
parentfa00ae7de6a9605deb5d1d8a930d2b0f4969e082 (diff)
downloadcoreboot-6fe4e5e34c584f7f4ad2c071b311e6b6a878b623.tar.xz
ipq806x: add i2c driver
this change ports i2c and other relevant drivers from depthcharge for ipq806x. BUG=chrome-os-partner:33647 BRANCH=ToT TEST=Booted storm using vboot2 Change-Id: I3d9a431aa8adb9b91dbccdf031647dfadbafc24c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: a0c615d0a49fd9c0ffa231353800882fff6ab90b Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Change-Id: Id7cc3932ed4ae54f46336aaebde35e84125ebebd Original-Reviewed-on: https://chromium-review.googlesource.com/229428 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Original-Commit-Queue: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/9685 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/storm/Kconfig8
-rw-r--r--src/mainboard/google/storm/Makefile.inc1
-rw-r--r--src/mainboard/google/storm/gsbi.c58
3 files changed, 67 insertions, 0 deletions
diff --git a/src/mainboard/google/storm/Kconfig b/src/mainboard/google/storm/Kconfig
index 6959d50ed8..c3406a0733 100644
--- a/src/mainboard/google/storm/Kconfig
+++ b/src/mainboard/google/storm/Kconfig
@@ -49,4 +49,12 @@ config DRAM_SIZE_MB
default 512 if BOARD_VARIANT_AP148
default 1024
+config DRIVER_TPM_I2C_BUS
+ hex
+ default 0x1
+
+config DRIVER_TPM_I2C_ADDR
+ hex
+ default 0x20
+
endif # BOARD_GOOGLE_STORM
diff --git a/src/mainboard/google/storm/Makefile.inc b/src/mainboard/google/storm/Makefile.inc
index bcd786865a..6b7190cb65 100644
--- a/src/mainboard/google/storm/Makefile.inc
+++ b/src/mainboard/google/storm/Makefile.inc
@@ -22,6 +22,7 @@ bootblock-y += reset.c
verstage-y += cdp.c
verstage-y += chromeos.c
+verstage-y += gsbi.c
verstage-y += memlayout.ld
verstage-y += reset.c
diff --git a/src/mainboard/google/storm/gsbi.c b/src/mainboard/google/storm/gsbi.c
new file mode 100644
index 0000000000..17b74e5f3e
--- /dev/null
+++ b/src/mainboard/google/storm/gsbi.c
@@ -0,0 +1,58 @@
+/*
+ * This file is part of the depthcharge project.
+ *
+ * Copyright (C) 2014 The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <soc/gpio.h>
+#include <soc/gsbi.h>
+#include <soc/qup.h>
+
+#define GPIO_FUNC_I2C 0x1
+
+int gsbi_init_board(gsbi_id_t gsbi_id)
+{
+ switch (gsbi_id) {
+ case GSBI_ID_4:
+ /* Configure GPIOs 13 - SCL, 12 - SDA, 2mA gpio_en */
+ gpio_tlmm_config_set(12, GPIO_FUNC_I2C,
+ GPIO_NO_PULL, GPIO_2MA, 1);
+ gpio_tlmm_config_set(13, GPIO_FUNC_I2C,
+ GPIO_NO_PULL, GPIO_2MA, 1);
+ break;
+ case GSBI_ID_1:
+ /* Configure GPIOs 54 - SCL, 53 - SDA, 2mA gpio_en */
+ gpio_tlmm_config_set(54, GPIO_FUNC_I2C,
+ GPIO_NO_PULL, GPIO_2MA, 1);
+ gpio_tlmm_config_set(53, GPIO_FUNC_I2C,
+ GPIO_NO_PULL, GPIO_2MA, 1);
+ break;
+ default:
+ return 1;
+ }
+
+ return 0;
+}