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authorFurquan Shaikh <furquan@google.com>2018-07-25 15:04:56 -0700
committerAaron Durbin <adurbin@chromium.org>2018-07-26 15:37:08 +0000
commit0a144fa583b270d7b96a3b96599567d52336c958 (patch)
tree0c78fb54b72f43f72c03fd06d3e992a0657f8735 /src
parent06a41f1f604bb10c54a3a17b0f75dda8d7d61614 (diff)
downloadcoreboot-0a144fa583b270d7b96a3b96599567d52336c958.tar.xz
mb/google/octopus/variants/phaser: Provide override GPIO config
This change provides override GPIO table for variant phaser depending upon the board id. Additionally, early_gpio_table is also provided for phaser since EN_PP3300_WLAN needs to be handled differently based on board id. BUG=b:111743717 TEST=Verified that GPIO configuration for the override GPIOs is different than before with this change. Change-Id: I4d2e829e1b886299442c17cecc069854b742b43c Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/27642 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/octopus/variants/phaser/Makefile.inc3
-rw-r--r--src/mainboard/google/octopus/variants/phaser/gpio.c113
2 files changed, 116 insertions, 0 deletions
diff --git a/src/mainboard/google/octopus/variants/phaser/Makefile.inc b/src/mainboard/google/octopus/variants/phaser/Makefile.inc
index 1644083954..d54ed40095 100644
--- a/src/mainboard/google/octopus/variants/phaser/Makefile.inc
+++ b/src/mainboard/google/octopus/variants/phaser/Makefile.inc
@@ -1 +1,4 @@
+bootblock-y += gpio.c
+
ramstage-y += variant.c
+ramstage-y += gpio.c
diff --git a/src/mainboard/google/octopus/variants/phaser/gpio.c b/src/mainboard/google/octopus/variants/phaser/gpio.c
new file mode 100644
index 0000000000..11935d97ff
--- /dev/null
+++ b/src/mainboard/google/octopus/variants/phaser/gpio.c
@@ -0,0 +1,113 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC.
+ *
+ * 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 <baseboard/gpio.h>
+#include <baseboard/variants.h>
+#include <boardid.h>
+#include <gpio.h>
+#include <soc/gpio.h>
+
+static const struct pad_config default_override_table[] = {
+ PAD_NC(GPIO_52, UP_20K),
+ PAD_NC(GPIO_53, UP_20K),
+ PAD_NC(GPIO_67, UP_20K),
+ PAD_NC(GPIO_117, UP_20K),
+ PAD_NC(GPIO_143, UP_20K),
+
+ /* EN_PP3300_TOUCHSCREEN */
+ PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
+ DISPUPD),
+
+ PAD_NC(GPIO_161, DN_20K),
+
+ /* EN_PP3300_WLAN_L */
+ PAD_CFG_GPO(GPIO_178, 0, DEEP),
+
+ PAD_NC(GPIO_213, DN_20K),
+ PAD_NC(GPIO_214, DN_20K),
+};
+
+static const struct pad_config bid0_override_table[] = {
+ PAD_NC(GPIO_52, UP_20K),
+ PAD_NC(GPIO_53, UP_20K),
+ PAD_NC(GPIO_67, UP_20K),
+ PAD_NC(GPIO_117, UP_20K),
+ PAD_NC(GPIO_143, UP_20K),
+ PAD_NC(GPIO_161, DN_20K),
+ PAD_NC(GPIO_214, DN_20K),
+};
+
+const struct pad_config *variant_override_gpio_table(size_t *num)
+{
+ const struct pad_config *c;
+
+ switch (board_id()) {
+ case 0:
+ case UNDEFINED_STRAPPING_ID:
+ c = bid0_override_table;
+ *num = ARRAY_SIZE(bid0_override_table);
+ break;
+ default:
+ c = default_override_table;
+ *num = ARRAY_SIZE(default_override_table);
+ }
+
+ return c;
+}
+
+/* GPIOs needed prior to ramstage. */
+static const struct pad_config early_gpio_table[] = {
+ /* PCH_WP_OD */
+ PAD_CFG_GPI(GPIO_190, NONE, DEEP),
+ /* H1_PCH_INT_ODL */
+ PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, EDGE_SINGLE, INVERT, TxDRxE,
+ DISPUPD),
+ /* H1_SLAVE_SPI_CLK_R */
+ PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1),
+ /* H1_SLAVE_SPI_CS_L_R */
+ PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1),
+ /* H1_SLAVE_SPI_MISO */
+ PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1),
+ /* H1_SLAVE_SPI_MOSI_R */
+ PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1),
+
+ /* WLAN_PE_RST */
+ PAD_CFG_GPO(GPIO_164, 0, DEEP),
+
+ /*
+ * ESPI_IO1 acts as ALERT# (which is open-drain) and requies a weak
+ * pull-up for proper operation. Since there is no external pull present
+ * on this platform, configure an internal weak pull-up.
+ */
+ PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1,
+ ENPU),
+};
+
+const struct pad_config *variant_early_gpio_table(size_t *num)
+{
+ /*
+ * This is a hack to configure EN_PP3300_WLAN based on board id. Once
+ * board id 0 is deprecated, we can get rid of this.
+ */
+ uint32_t bid = board_id();
+
+ if (bid == UNDEFINED_STRAPPING_ID || bid < 1)
+ gpio_output(GPIO_178, 1);
+ else
+ gpio_output(GPIO_178, 0);
+
+ *num = ARRAY_SIZE(early_gpio_table);
+ return early_gpio_table;
+}