diff options
Diffstat (limited to 'src/mainboard/amd/birman_plus/ec.c')
| -rw-r--r-- | src/mainboard/amd/birman_plus/ec.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/src/mainboard/amd/birman_plus/ec.c b/src/mainboard/amd/birman_plus/ec.c new file mode 100644 index 000000000000..2ddc0492fb08 --- /dev/null +++ b/src/mainboard/amd/birman_plus/ec.c @@ -0,0 +1,213 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <console/console.h> +#include <ec/acpi/ec.h> +#include <stdint.h> +#include "ec.h" + +#define BIRMAN_EC_CMD 0x666 +#define BIRMAN_EC_DATA 0x662 + +#define EC_GPIO_1_ADDR 0xA1 +#define EC1_EVAL_PWREN BIT(1) + +#define EC_GPIO_2_ADDR 0xA2 +#define EC2_EVAL_SLOT_PWREN BIT(5) +#define EC2_EVAL_19V_EN BIT(2) + +#define EC_GPIO_3_ADDR 0xA3 +#define EC3_WLAN_RST_AUX BIT(5) +#define EC3_WWAN_RST_AUX BIT(4) +#define EC3_SD_RST_AUX BIT(3) +#define EC3_DT_RST_AUX BIT(2) +#define EC3_LOM_RST_AUX BIT(1) +#define EC3_EVAL_RST_AUX BIT(0) + +#define EC_GPIO_7_ADDR 0xA7 +#define EC7_WWAN_PWR_OFF_N BIT(7) +#define EC7_BT_RADIO_DIS BIT(2) +#define EC7_WL_RADIO_DIS BIT(0) + +#define EC_GPIO_8_ADDR 0xA8 +#define EC8_ADAPTER_OFF BIT(5) +#define EC8_EVAL_SMBUS1_N_SW BIT(3) +#define EC8_MP2_SEL BIT(2) +#define EC8_DT_N_SSD1_SW BIT(1) + +#define EC_GPIO_9_ADDR 0xA9 +#define EC9_CAM0_PWR_EN BIT(7) +#define EC9_CAM1_PWR_EN BIT(6) +#define EC9_WWAN_RST BIT(5) +#define EC9_DT_PWREN BIT(2) +#define EC9_TPM_PWR_EN BIT(1) +#define EC9_TPM_S0I3_N BIT(0) + +#define EC_GPIO_A_ADDR 0xAA +#define ECA_MUX2_S0 BIT(7) +#define ECA_MUX2_S1 BIT(6) +#define ECA_MUX1_S0 BIT(5) +#define ECA_MUX1_S1 BIT(4) +#define ECA_MUX0_S0 BIT(3) +#define ECA_MUX0_S1 BIT(2) +#define ECA_SMBUS1_EN BIT(1) +#define ECA_SMBUS0_EN BIT(0) + +#define EC_GPIO_C_ADDR 0xAC +#define ECC_TPNL_BUF_EN BIT(6) +#define ECC_TPAD_BUF_EN BIT(5) +#define ECC_NFC_BUF_EN BIT(4) + +#define EC_GPIO_D_ADDR 0xAD +#define ECD_TPNL_PWR_EN BIT(7) +#define ECD_TPNL_EN BIT(6) +#define ECD_SSD1_PWR_EN BIT(5) +#define ECD_FPR_PWR_EN BIT(3) +#define ECD_FPR_OFF_N BIT(2) +#define ECD_FPR_LOCK_N BIT(1) +#define ECD_TPAD_DISABLE_N BIT(0) + +#define EC_GPIO_E_ADDR 0xAE +#define ECE_LOM_PWR_EN BIT(7) +#define ECE_SSD0_PWR_EN BIT(6) +#define ECE_SD_PWR_EN BIT(5) +#define ECE_WLAN_PWR_EN BIT(4) +#define ECE_WWAN_PWR_EN BIT(3) +#define ECE_CAM_PWR_EN BIT(2) +#define ECE_FPR_N_GBE_SEL BIT(1) +#define ECE_BT_N_TPNL_SEL BIT(0) + +#define EC_GPIO_F_ADDR 0xAF +#define ECF_CAM_FW_WP_N BIT(7) +#define ECF_I2C_MUX_OE_N BIT(4) +#define ECF_WLAN0_N_WWAN1_SW BIT(1) +#define ECF_WWAN0_N_WLAN1_SW BIT(0) + +#define EC_GPIO_G_ADDR 0xB0 +#define ECG_IR_LED_PWR_EN BIT(7) +#define ECG_U0_WLAN_HDR_SEL BIT(6) +#define ECG_DT_SSD1_MUX_OFF BIT(5) +#define ECG_WLAN_WWAN_MUX_OFF BIT(4) + +static void configure_ec_gpio(void) +{ + uint8_t tmp; + + tmp = ec_read(EC_GPIO_1_ADDR); + if (CONFIG(ENABLE_EVAL_CARD)) { + tmp |= EC1_EVAL_PWREN; + } else { + tmp &= ~EC1_EVAL_PWREN; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_1_ADDR, tmp); + ec_write(EC_GPIO_1_ADDR, tmp); + + tmp = ec_read(EC_GPIO_2_ADDR); + if (CONFIG(ENABLE_EVAL_CARD)) { + tmp |= EC2_EVAL_SLOT_PWREN; + if (CONFIG(ENABLE_EVAL_19V)) { + tmp |= EC2_EVAL_19V_EN; + } else { + tmp &= ~EC2_EVAL_19V_EN; + } + } else { + tmp &= ~EC2_EVAL_SLOT_PWREN; + tmp &= ~EC2_EVAL_19V_EN; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_2_ADDR, tmp); + ec_write(EC_GPIO_2_ADDR, tmp); + + tmp = ec_read(EC_GPIO_3_ADDR); + tmp |= EC3_WLAN_RST_AUX | EC3_WWAN_RST_AUX | EC3_SD_RST_AUX; + tmp |= EC3_DT_RST_AUX | EC3_LOM_RST_AUX | EC3_EVAL_RST_AUX; + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_3_ADDR, tmp); + ec_write(EC_GPIO_3_ADDR, tmp); + + tmp = ec_read(EC_GPIO_7_ADDR); + tmp &= ~EC7_BT_RADIO_DIS; + tmp &= ~EC7_WL_RADIO_DIS; + tmp |= EC7_WWAN_PWR_OFF_N; + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_7_ADDR, tmp); + ec_write(EC_GPIO_7_ADDR, tmp); + + tmp = ec_read(EC_GPIO_8_ADDR); + if (CONFIG(ENABLE_M2_SSD1_BIRMANPLUS)) { + tmp |= EC8_DT_N_SSD1_SW; + } else { + tmp &= ~EC8_DT_N_SSD1_SW; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_8_ADDR, tmp); + ec_write(EC_GPIO_8_ADDR, tmp); + + tmp = ec_read(EC_GPIO_9_ADDR); + tmp |= EC9_CAM0_PWR_EN | EC9_CAM1_PWR_EN | EC9_WWAN_RST | EC9_TPM_PWR_EN; + if (CONFIG(ENABLE_DT_SLOT_BIRMANPLUS)) { + tmp |= EC9_DT_PWREN; + } else { + tmp &= ~EC9_DT_PWREN; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_9_ADDR, tmp); + ec_write(EC_GPIO_9_ADDR, tmp); + + tmp = ECA_MUX1_S0 | ECA_SMBUS1_EN | ECA_SMBUS0_EN; + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_A_ADDR, tmp); + ec_write(EC_GPIO_A_ADDR, tmp); + + tmp = ec_read(EC_GPIO_C_ADDR); + tmp |= ECC_TPNL_BUF_EN | ECC_TPAD_BUF_EN | ECC_NFC_BUF_EN; + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_C_ADDR, tmp); + ec_write(EC_GPIO_C_ADDR, tmp); + + tmp = ec_read(EC_GPIO_D_ADDR); + tmp |= ECD_TPNL_PWR_EN | ECD_TPNL_EN | ECD_TPAD_DISABLE_N; + if (CONFIG(ENABLE_M2_SSD1_BIRMANPLUS)) { + tmp |= ECD_SSD1_PWR_EN; + } else { + tmp &= ~ECD_SSD1_PWR_EN; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_D_ADDR, tmp); + ec_write(EC_GPIO_D_ADDR, tmp); + + tmp = ec_read(EC_GPIO_E_ADDR); + tmp |= ECE_LOM_PWR_EN | ECE_SSD0_PWR_EN | ECE_SD_PWR_EN; + tmp |= ECE_CAM_PWR_EN | ECE_FPR_N_GBE_SEL; + tmp &= ~ECE_BT_N_TPNL_SEL; + if (CONFIG(WLAN01_BIRMANPLUS)) { // no WWAN, turn off WWAN power + tmp &= ~ECE_WWAN_PWR_EN; + } else { + tmp |= ECE_WWAN_PWR_EN; + } + if (CONFIG(WWAN01_BIRMANPLUS)) { // no WLAN, turn off WLAN power + tmp &= ~ECE_WLAN_PWR_EN; + } else { + tmp |= ECE_WLAN_PWR_EN; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_E_ADDR, tmp); + ec_write(EC_GPIO_E_ADDR, tmp); + + tmp = ec_read(EC_GPIO_F_ADDR); + if (CONFIG(WLAN01_BIRMANPLUS)) { + tmp |= ECF_WWAN0_N_WLAN1_SW; + } else { + tmp &= ~ECF_WWAN0_N_WLAN1_SW; + } + if (CONFIG(WWAN01_BIRMANPLUS)) { + tmp |= ECF_WLAN0_N_WWAN1_SW; + } else { + tmp &= ~ECF_WLAN0_N_WWAN1_SW; + } + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_F_ADDR, tmp); + ec_write(EC_GPIO_F_ADDR, tmp); + + tmp = ec_read(EC_GPIO_G_ADDR); + tmp &= ~ECG_DT_SSD1_MUX_OFF; + tmp &= ~ECG_WLAN_WWAN_MUX_OFF; + tmp |= ECG_IR_LED_PWR_EN | ECG_U0_WLAN_HDR_SEL; + printk(BIOS_SPEW, "Write reg [0x%02x] = 0x%02x\n", EC_GPIO_G_ADDR, tmp); + ec_write(EC_GPIO_G_ADDR, tmp); +} + +void birman_ec_init(void) +{ + ec_set_ports(BIRMAN_EC_CMD, BIRMAN_EC_DATA); + configure_ec_gpio(); +} |