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mb/intel/adlrvp: Override Type-C IOM GPIO Pads based on Board ID 

This patch allows ADL-RVP mainboards to set AUX GPIO PADs based
on the board id value.

Various ADL-P and ADL-M RVPs SKUs demand different GPIO AUX programming
hence, this patch implements a helper function inside `adlrvp` mainboard
to override devicetree chip config.

Note: Different ADL-P/M SKUs (LP4/LP5/DDR4/DDR5) don't have dedicated
devicetree for overrides hence, board id is being used for unique SKU
identification.

Additionally, skip AUX GPIO PAD filling up for Windows SKUs.

TEST=Able to override AUX GPIO PADs based on ADL-P RVP board id.

Change-Id: I2f0a37c7a8bd69af715551df2a93e6eed89e954a
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57532
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Subrata Banik 2021-09-09 21:58:48 +05:30 committed by Felix Held
parent a2bf94d4c1
commit 06a892240d
1 changed files with 37 additions and 1 deletions
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38
src/mainboard/intel/adlrvp/ramstage.c
View File

@ -5,9 +5,11 @@
#include <console/console.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <soc/gpio_soc_defs.h>
#include <soc/pci_devs.h>
#include <soc/soc_chip.h>
#include <drivers/intel/dptf/chip.h>
#include "board_id.h"
const struct cpu_power_limits limits[] = {
/* SKU_ID, pl1_min, pl1_max, pl2_min, pl2_max */
@ -49,7 +51,41 @@ void variant_update_power_limits(void)
}
}
static const struct typec_aux_bias_pads pad_config = { GPP_E23, GPP_E22 };
static const struct board_id_iom_port_config {
int board_id;
enum typec_port_index port;
} port_config[] = {
{ ADL_P_LP4_1, TYPE_C_PORT_2 },
{ ADL_P_LP4_2, TYPE_C_PORT_2 },
{ ADL_P_DDR4_1, TYPE_C_PORT_2 },
{ ADL_P_DDR4_2, TYPE_C_PORT_2 },
{ ADL_P_LP5_1, TYPE_C_PORT_2 },
{ ADL_P_LP5_2, TYPE_C_PORT_2 },
{ ADL_M_LP4, TYPE_C_PORT_1 },
{ ADL_M_LP5, TYPE_C_PORT_0 },
};
static void variant_update_typec_init_config(void)
{
/* Skip filling aux bias gpio pads for Windows SKUs */
if (!(CONFIG(BOARD_INTEL_ADLRVP_P_EXT_EC) || CONFIG(BOARD_INTEL_ADLRVP_M_EXT_EC)))
return;
config_t *config = config_of_soc();
int board_id = get_board_id();
for (int i = 0; i < ARRAY_SIZE(port_config); i++) {
if (board_id != port_config[i].board_id)
continue;
memcpy(&config->typec_aux_bias_pads[port_config[i].port], &pad_config,
sizeof(pad_config));
}
}
void variant_devtree_update(void)
{
variant_update_power_limits();
variant_update_typec_init_config();
}