881df06124
- Add configurability using FW_CONFIG field in CBI, to enable/disable I2S codec support for MAX98373 codecs - AUDIO=ADL_MAX98373_ALC5682I_I2S: enable max98373 codec using expansion board Bug=None Test=With CBI FW_CONFIG set to 0x100, check I2S audio output on expansion card Signed-off-by: Anil Kumar <anil.kumar.k@intel.com> Change-Id: If2649647e58c5f30e2b539d534adf2a4e68f4fda Reviewed-on: https://review.coreboot.org/c/coreboot/+/52221 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
41 lines
1.1 KiB
C
41 lines
1.1 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 i2s_enable_pads[] = {
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/* Audio Codec INT N */
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PAD_CFG_GPI_APIC(GPP_H3, NONE, PLTRST, EDGE_BOTH, INVERT),
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/* I2S0_SCLK */
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PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2),
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/* I2S0_SFRM */
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PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2),
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/* I2S0_TXD */
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PAD_CFG_NF(GPP_R2, NONE, DEEP, NF2),
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/* I2S0_RXD */
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PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2),
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/* I2S2_SCLK */
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PAD_CFG_NF(GPP_R4, NONE, DEEP, NF2),
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/* I2S2_SFRM */
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PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2),
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/* I2S2_TXD */
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PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2),
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/* I2S2_RXD */
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PAD_CFG_NF(GPP_R7, NONE, DEEP, NF2),
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/* I2S_MCLK1_OUT */
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PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1),
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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_probe(FW_CONFIG(AUDIO, ADL_MAX98373_ALC5682I_I2S))) {
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printk(BIOS_INFO, "Configure GPIOs for I2S audio.\n");
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gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_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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