From 6fe4e5e34c584f7f4ad2c071b311e6b6a878b623 Mon Sep 17 00:00:00 2001 From: Vadim Bendebury Date: Sat, 6 Dec 2014 10:44:58 -0800 Subject: 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 Original-Commit-Id: a0c615d0a49fd9c0ffa231353800882fff6ab90b Original-Signed-off-by: Daisuke Nojiri Original-Change-Id: Id7cc3932ed4ae54f46336aaebde35e84125ebebd Original-Reviewed-on: https://chromium-review.googlesource.com/229428 Original-Reviewed-by: Vadim Bendebury Original-Tested-by: Vadim Bendebury Original-Commit-Queue: Vadim Bendebury Reviewed-on: http://review.coreboot.org/9685 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/mainboard/google/storm/Kconfig | 8 +++++ src/mainboard/google/storm/Makefile.inc | 1 + src/mainboard/google/storm/gsbi.c | 58 +++++++++++++++++++++++++++++++++ 3 files changed, 67 insertions(+) create mode 100644 src/mainboard/google/storm/gsbi.c (limited to 'src/mainboard/google/storm') 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 +#include +#include + +#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; +} -- cgit v1.2.3