mb/google/dedede: Add GPIO stubs
Add stubbed out GPIO configuration and perform GPIO initialization during bootblock and ramstage. BUG=b:144768001 TEST=Build Test Change-Id: I1397b6a433e5046650f64f7eb9a84c51eb0c7441 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38278 Reviewed-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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@ -32,4 +32,8 @@ config UART_FOR_CONSOLE
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int
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default 2
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config VARIANT_DIR
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string
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default "dedede" if BOARD_GOOGLE_DEDEDE
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endif #BOARD_GOOGLE_BASEBOARD_DEDEDE
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@ -4,3 +4,7 @@ ramstage-y += mainboard.c
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subdirs-y += variants/baseboard
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CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/baseboard/include
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VARIANT_DIR:=$(call strip_quotes,$(CONFIG_VARIANT_DIR))
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subdirs-y += variants/$(VARIANT_DIR)
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CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/include
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@ -6,9 +6,14 @@
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <baseboard/variants.h>
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#include <bootblock_common.h>
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void bootblock_mainboard_init(void)
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{
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/* TODO: Perform mainboard initialization */
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const struct pad_config *pads;
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size_t num;
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pads = variant_early_gpio_table(&num);
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gpio_configure_pads(pads, num);
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}
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@ -6,11 +6,16 @@
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <baseboard/variants.h>
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#include <device/device.h>
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static void mainboard_init(void *chip_info)
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{
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/* TODO: Perform mainboard initialization */
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const struct pad_config *pads;
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size_t num;
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pads = variant_gpio_table(&num);
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gpio_configure_pads(pads, num);
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}
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static void mainboard_enable(struct device *dev)
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@ -0,0 +1,5 @@
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bootblock-y += gpio.c
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ramstage-y += gpio.c
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smm-y += gpio.c
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@ -0,0 +1,33 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2020 The coreboot project Authors.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <baseboard/gpio.h>
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#include <baseboard/variants.h>
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#include <commonlib/helpers.h>
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/* Pad configuration in ramstage*/
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static const struct pad_config gpio_table[] = {
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/* ToDo: Fill gpio configuration */
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};
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/* Early pad configuration in bootblock */
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static const struct pad_config early_gpio_table[] = {
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/* ToDo: Fill early gpio configuration */
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};
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const struct pad_config *__weak variant_gpio_table(size_t *num)
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{
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*num = ARRAY_SIZE(gpio_table);
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return gpio_table;
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}
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const struct pad_config *__weak variant_early_gpio_table(size_t *num)
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{
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*num = ARRAY_SIZE(early_gpio_table);
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return early_gpio_table;
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}
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@ -12,4 +12,10 @@
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#include <soc/gpio.h>
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#include <stdint.h>
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/* The next set of functions return the gpio table and fill in the number of
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* entries for each table. */
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const struct pad_config *variant_gpio_table(size_t *num);
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const struct pad_config *variant_early_gpio_table(size_t *num);
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#endif /*__BASEBOARD_VARIANTS_H__ */
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@ -0,0 +1,14 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2020 The coreboot project Authors.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef MAINBOARD_GPIO_H
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#define MAINBOARD_GPIO_H
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#include <baseboard/gpio.h>
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#endif /* MAINBOARD_GPIO_H */
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