17689367d5
In cases when a volteer device is unprovisioned, the safest thing to do for GPIOs that will normally be used for audio codec buses is to leave them disabled (configured as PAD_CFG_NC). This patch adds support for that. BUG=none TEST=add debug print to new if branch; remove fw_config from CBI and see print on console Change-Id: I8efd101174f6e3d7233d2bf803b680673cada81a Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47972 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
118 lines
4.5 KiB
C
118 lines
4.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <bootstate.h>
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#include <console/console.h>
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#include <fw_config.h>
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#include <gpio.h>
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static const struct pad_config dmic_enable_pads[] = {
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PAD_CFG_NF(GPP_S4, NONE, DEEP, NF2), /* DMIC_CLK1 */
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PAD_CFG_NF(GPP_S5, NONE, DEEP, NF2), /* DMIC_DATA1 */
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PAD_CFG_NF(GPP_S6, NONE, DEEP, NF2), /* DMIC_CLK0 */
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PAD_CFG_NF(GPP_S7, NONE, DEEP, NF2), /* DMIC_DATA0 */
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};
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static const struct pad_config dmic_disable_pads[] = {
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PAD_NC(GPP_S4, NONE),
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PAD_NC(GPP_S5, NONE),
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PAD_NC(GPP_S6, NONE),
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PAD_NC(GPP_S7, NONE),
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};
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static const struct pad_config sndw_enable_pads[] = {
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PAD_CFG_NF(GPP_S0, NONE, DEEP, NF1), /* SNDW0_CLK */
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PAD_CFG_NF(GPP_S1, NONE, DEEP, NF1), /* SNDW0_DATA */
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PAD_CFG_NF(GPP_S2, NONE, DEEP, NF1), /* SNDW1_CLK */
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PAD_CFG_NF(GPP_S3, NONE, DEEP, NF1), /* SNDW1_DATA */
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};
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static const struct pad_config sndw_disable_pads[] = {
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PAD_NC(GPP_S0, NONE),
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PAD_NC(GPP_S1, NONE),
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PAD_NC(GPP_S2, NONE),
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PAD_NC(GPP_S3, NONE),
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};
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static const struct pad_config i2s_up3_enable_pads[] = {
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PAD_CFG_NF(GPP_A23, NONE, DEEP, NF1), /* I2S1_SCLK */
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PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1), /* I2S_MCLK1 */
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PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2), /* I2S0_SCLK */
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PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2), /* I2S0_SFRM */
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PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2), /* I2S0_TXD */
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PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2), /* I2S0_RXD */
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PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2), /* I2S1_RXD */
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PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2), /* I2S1_TXD */
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PAD_CFG_NF(GPP_R7, NONE, DEEP, NF2), /* I2S1_SFRM */
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};
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static const struct pad_config i2s_up4_enable_pads[] = {
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PAD_CFG_NF(GPP_A7, NONE, DEEP, NF1), /* I2S2_SCLK */
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PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1), /* I2S_MCLK1 */
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PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2), /* I2S0_SCLK */
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PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2), /* I2S0_SFRM */
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PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2), /* I2S0_TXD */
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PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2), /* I2S0_RXD */
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};
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static const struct pad_config i2s_disable_pads[] = {
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PAD_NC(GPP_A23, NONE),
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PAD_NC(GPP_D19, NONE),
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PAD_NC(GPP_R0, NONE),
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PAD_NC(GPP_R1, NONE),
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PAD_NC(GPP_R2, DN_20K),
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PAD_NC(GPP_R3, NONE),
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PAD_NC(GPP_R5, NONE),
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PAD_NC(GPP_R6, NONE),
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PAD_NC(GPP_R7, NONE),
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};
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static const struct pad_config sd_power_enable_pads[] = {
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PAD_CFG_GPO(GPP_D16, 1, DEEP),
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};
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static void fw_config_handle(void *unused)
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{
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if (!fw_config_is_provisioned()) {
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gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads));
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gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads));
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gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads));
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return;
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}
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if (fw_config_probe(FW_CONFIG(AUDIO, NONE))) {
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printk(BIOS_INFO, "Configure GPIOs for no audio.\n");
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gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads));
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gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads));
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gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads));
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}
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if (fw_config_probe(FW_CONFIG(AUDIO, MAX98373_ALC5682_SNDW))) {
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printk(BIOS_INFO, "Configure GPIOs for SoundWire audio.\n");
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gpio_configure_pads(sndw_enable_pads, ARRAY_SIZE(sndw_enable_pads));
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gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
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gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads));
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}
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if (fw_config_probe(FW_CONFIG(AUDIO, MAX98357_ALC5682I_I2S)) ||
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fw_config_probe(FW_CONFIG(AUDIO, MAX98373_ALC5682I_I2S)) ||
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fw_config_probe(FW_CONFIG(AUDIO, MAX98360_ALC5682I_I2S)) ||
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fw_config_probe(FW_CONFIG(AUDIO, RT1011_ALC5682I_I2S))) {
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printk(BIOS_INFO, "Configure GPIOs for I2S audio on UP3.\n");
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gpio_configure_pads(i2s_up3_enable_pads, ARRAY_SIZE(i2s_up3_enable_pads));
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gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
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gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads));
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}
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if (fw_config_probe(FW_CONFIG(AUDIO, MAX98373_ALC5682I_I2S_UP4))) {
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printk(BIOS_INFO, "Configure GPIOs for I2S audio on UP4.\n");
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gpio_configure_pads(i2s_up4_enable_pads, ARRAY_SIZE(i2s_up4_enable_pads));
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gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
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gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads));
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}
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if (fw_config_probe(FW_CONFIG(DB_SD, SD_GL9755S)) ||
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fw_config_probe(FW_CONFIG(DB_SD, SD_RTS5227S)) ||
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fw_config_probe(FW_CONFIG(DB_SD, SD_GL9750)) ||
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fw_config_probe(FW_CONFIG(DB_SD, SD_OZ711LV2LN))) {
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printk(BIOS_INFO, "Configure GPIOs for SD power enable.\n");
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gpio_configure_pads(sd_power_enable_pads, ARRAY_SIZE(sd_power_enable_pads));
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}
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}
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BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);
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