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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /board/lazor/switchcap.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14526.73.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'board/lazor/switchcap.c')
-rw-r--r--board/lazor/switchcap.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/board/lazor/switchcap.c b/board/lazor/switchcap.c
deleted file mode 100644
index 16f4a54c79..0000000000
--- a/board/lazor/switchcap.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/* Copyright 2021 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "common.h"
-#include "config.h"
-#include "console.h"
-#include "driver/ln9310.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "i2c.h"
-#include "power/qcom.h"
-#include "system.h"
-#include "sku.h"
-
-#define CPRINTS(format, args...) cprints(CC_I2C, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_I2C, format, ## args)
-
-/* LN9310 switchcap */
-const struct ln9310_config_t ln9310_config = {
- .i2c_port = I2C_PORT_POWER,
- .i2c_addr_flags = LN9310_I2C_ADDR_0_FLAGS,
-};
-
-static void switchcap_init(void)
-{
- if (board_has_da9313()) {
- CPRINTS("Use switchcap: DA9313");
-
- /*
- * When the chip in power down mode, it outputs high-Z.
- * Set pull-down to avoid floating.
- */
- gpio_set_flags(GPIO_DA9313_GPIO0, GPIO_INPUT | GPIO_PULL_DOWN);
-
- /*
- * Configure DA9313 enable, push-pull output. Don't set the
- * level here; otherwise, it will override its value and
- * shutdown the switchcap when sysjump to RW.
- */
- gpio_set_flags(GPIO_SWITCHCAP_ON, GPIO_OUTPUT);
- } else if (board_has_ln9310()) {
- CPRINTS("Use switchcap: LN9310");
-
- /* Configure and enable interrupt for LN9310 */
- gpio_set_flags(GPIO_SWITCHCAP_PG_INT_L, GPIO_INT_FALLING);
- gpio_enable_interrupt(GPIO_SWITCHCAP_PG_INT_L);
-
- /*
- * Configure LN9310 enable, open-drain output. Don't set the
- * level here; otherwise, it will override its value and
- * shutdown the switchcap when sysjump to RW.
- *
- * Note that the gpio.inc configures it GPIO_OUT_LOW. When
- * sysjump to RW, will output push-pull a short period of
- * time. As it outputs LOW, should be fine.
- *
- * This GPIO changes like:
- * (1) EC boots from RO -> high-Z
- * (2) GPIO init according to gpio.inc -> push-pull LOW
- * (3) This function configures it -> open-drain HIGH
- * (4) Power sequence turns on the switchcap -> open-drain LOW
- * (5) EC sysjumps to RW
- * (6) GPIO init according to gpio.inc -> push-pull LOW
- * (7) This function configures it -> open-drain LOW
- */
- gpio_set_flags(GPIO_SWITCHCAP_ON_L,
- GPIO_OUTPUT | GPIO_OPEN_DRAIN);
-
- /* Only configure the switchcap if not sysjump */
- if (!system_jumped_late()) {
- /*
- * Deassert the enable pin (set it HIGH), so the
- * switchcap won't be enabled after the switchcap is
- * configured from standby mode to switching mode.
- */
- gpio_set_level(GPIO_SWITCHCAP_ON_L, 1);
- ln9310_init();
- }
- } else if (board_has_buck_ic()) {
- CPRINTS("Use Buck IC");
- } else {
- CPRINTS("ERROR: No switchcap solution");
- }
-}
-DECLARE_HOOK(HOOK_INIT, switchcap_init, HOOK_PRIO_DEFAULT);
-
-void board_set_switchcap_power(int enable)
-{
- if (board_has_da9313()) {
- gpio_set_level(GPIO_SWITCHCAP_ON, enable);
- } else if (board_has_ln9310()) {
- gpio_set_level(GPIO_SWITCHCAP_ON_L, !enable);
- ln9310_software_enable(enable);
- } else if (board_has_buck_ic()) {
- gpio_set_level(GPIO_VBOB_EN, enable);
- }
-}
-
-int board_is_switchcap_enabled(void)
-{
- if (board_has_da9313())
- return gpio_get_level(GPIO_SWITCHCAP_ON);
- else if (board_has_ln9310())
- return !gpio_get_level(GPIO_SWITCHCAP_ON_L);
-
- /* Board has buck ic*/
- return gpio_get_level(GPIO_VBOB_EN);
-}
-
-int board_is_switchcap_power_good(void)
-{
- if (board_has_da9313())
- return gpio_get_level(GPIO_DA9313_GPIO0);
- else if (board_has_ln9310())
- return ln9310_power_good();
-
- /* Board has buck ic no way to check POWER GOOD */
- return 1;
-}