2020-04-04 18:50:57 +02:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2019-04-22 22:55:16 +02:00
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#include <console/console.h>
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#include <device/mmio.h>
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#include <bootstate.h>
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2020-06-05 00:36:33 +02:00
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#include <cpu/amd/msr.h>
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2019-04-22 22:55:16 +02:00
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#include <cpu/x86/smm.h>
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2019-06-21 00:28:33 +02:00
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#include <cpu/x86/msr.h>
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2019-04-22 22:55:16 +02:00
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ops.h>
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#include <cbmem.h>
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2020-06-14 11:01:58 +02:00
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#include <acpi/acpi_gnvs.h>
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2019-04-22 22:55:16 +02:00
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#include <amdblocks/amd_pci_util.h>
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#include <amdblocks/reset.h>
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#include <amdblocks/acpimmio.h>
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2020-05-10 03:30:51 +02:00
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#include <amdblocks/espi.h>
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2019-04-22 22:55:16 +02:00
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#include <amdblocks/lpc.h>
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#include <amdblocks/acpi.h>
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2020-05-10 02:24:42 +02:00
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#include <amdblocks/spi.h>
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2019-06-21 00:28:33 +02:00
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#include <soc/cpu.h>
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2020-05-20 16:01:43 +02:00
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#include <soc/i2c.h>
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2019-04-22 22:55:16 +02:00
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#include <soc/southbridge.h>
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#include <soc/smi.h>
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2020-06-18 15:54:43 +02:00
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#include <soc/uart.h>
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2019-04-22 22:55:16 +02:00
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#include <soc/amd_pci_int_defs.h>
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#include <delay.h>
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#include <soc/pci_devs.h>
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#include <soc/nvs.h>
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#include <types.h>
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2020-04-29 03:57:52 +02:00
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#include "chip.h"
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2019-04-22 22:55:16 +02:00
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/*
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* Table of APIC register index and associated IRQ name. Using IDX_XXX_NAME
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* provides a visible association with the index, therefore helping
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* maintainability of table. If a new index/name is defined in
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* amd_pci_int_defs.h, just add the pair at the end of this table.
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* Order is not important.
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*/
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const static struct irq_idx_name irq_association[] = {
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{ PIRQ_A, "INTA#" },
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{ PIRQ_B, "INTB#" },
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{ PIRQ_C, "INTC#" },
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{ PIRQ_D, "INTD#" },
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{ PIRQ_E, "INTE#" },
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2019-06-21 00:28:33 +02:00
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{ PIRQ_F, "INTF#/GENINT2" },
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2019-04-22 22:55:16 +02:00
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{ PIRQ_G, "INTG#" },
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{ PIRQ_H, "INTH#" },
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{ PIRQ_MISC, "Misc" },
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{ PIRQ_MISC0, "Misc0" },
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{ PIRQ_MISC1, "Misc1" },
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{ PIRQ_MISC2, "Misc2" },
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{ PIRQ_SIRQA, "Ser IRQ INTA" },
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{ PIRQ_SIRQB, "Ser IRQ INTB" },
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{ PIRQ_SIRQC, "Ser IRQ INTC" },
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{ PIRQ_SIRQD, "Ser IRQ INTD" },
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{ PIRQ_SCI, "SCI" },
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{ PIRQ_SMBUS, "SMBUS" },
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{ PIRQ_ASF, "ASF" },
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{ PIRQ_PMON, "PerMon" },
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{ PIRQ_SD, "SD" },
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2019-06-21 00:28:33 +02:00
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{ PIRQ_SDIO, "SDIO" },
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{ PIRQ_CIR, "CIR" },
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{ PIRQ_GPIOA, "GPIOa" },
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{ PIRQ_GPIOB, "GPIOb" },
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{ PIRQ_GPIOC, "GPIOc" },
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2019-04-22 22:55:16 +02:00
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{ PIRQ_SATA, "SATA" },
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2019-06-21 00:28:33 +02:00
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{ PIRQ_EMMC, "eMMC" },
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{ PIRQ_GPP0, "GPP0" },
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{ PIRQ_GPP1, "GPP1" },
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{ PIRQ_GPP2, "GPP2" },
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{ PIRQ_GPP3, "GPP3" },
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2019-04-22 22:55:16 +02:00
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{ PIRQ_GPIO, "GPIO" },
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{ PIRQ_I2C0, "I2C0" },
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{ PIRQ_I2C1, "I2C1" },
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{ PIRQ_I2C2, "I2C2" },
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{ PIRQ_I2C3, "I2C3" },
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{ PIRQ_UART0, "UART0" },
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{ PIRQ_UART1, "UART1" },
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2019-06-21 00:28:33 +02:00
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{ PIRQ_I2C4, "I2C4" },
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{ PIRQ_I2C5, "I2C5" },
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{ PIRQ_UART2, "UART2" },
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{ PIRQ_UART3, "UART3" },
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2019-04-22 22:55:16 +02:00
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};
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const struct irq_idx_name *sb_get_apic_reg_association(size_t *size)
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{
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*size = ARRAY_SIZE(irq_association);
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return irq_association;
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}
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static void sb_enable_cf9_io(void)
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{
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uint32_t reg = pm_read32(PM_DECODE_EN);
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pm_write32(PM_DECODE_EN, reg | CF9_IO_EN);
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}
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static void sb_enable_legacy_io(void)
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{
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uint32_t reg = pm_read32(PM_DECODE_EN);
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pm_write32(PM_DECODE_EN, reg | LEGACY_IO_EN);
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}
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2019-06-20 19:03:06 +02:00
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void sb_clk_output_48Mhz(void)
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2019-04-22 22:55:16 +02:00
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{
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u32 ctrl;
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ctrl = misc_read32(MISC_CLK_CNTL1);
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2019-06-20 19:03:06 +02:00
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ctrl |= BP_X48M0_OUTPUT_EN;
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2019-04-22 22:55:16 +02:00
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misc_write32(MISC_CLK_CNTL1, ctrl);
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}
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static void fch_smbus_init(void)
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{
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2020-01-28 18:58:13 +01:00
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/* 400 kHz smbus speed. */
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const uint8_t smbus_speed = (66000000 / (400000 * 4));
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2019-04-22 22:55:16 +02:00
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pm_write8(SMB_ASF_IO_BASE, SMB_BASE_ADDR >> 8);
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2020-01-28 18:58:13 +01:00
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smbus_write8(SMBTIMING, smbus_speed);
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2019-04-22 22:55:16 +02:00
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/* Clear all SMBUS status bits */
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smbus_write8(SMBHSTSTAT, SMBHST_STAT_CLEAR);
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smbus_write8(SMBSLVSTAT, SMBSLV_STAT_CLEAR);
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asf_write8(SMBHSTSTAT, SMBHST_STAT_CLEAR);
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asf_write8(SMBSLVSTAT, SMBSLV_STAT_CLEAR);
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}
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2020-05-10 03:30:51 +02:00
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static void lpc_configure_decodes(void)
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{
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if (CONFIG(POST_IO) && (CONFIG_POST_IO_PORT == 0x80))
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lpc_enable_port80();
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}
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2019-04-22 22:55:16 +02:00
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/* Before console init */
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2019-06-21 00:28:33 +02:00
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void fch_pre_init(void)
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2019-04-22 22:55:16 +02:00
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{
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2020-05-10 02:35:02 +02:00
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lpc_early_init();
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2020-05-10 03:30:51 +02:00
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if (!CONFIG(SOC_AMD_COMMON_BLOCK_USE_ESPI))
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lpc_configure_decodes();
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2020-05-10 02:24:42 +02:00
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fch_spi_early_init();
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2019-11-24 14:16:34 +01:00
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enable_acpimmio_decode_pm04();
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2019-04-22 22:55:16 +02:00
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fch_smbus_init();
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sb_enable_cf9_io();
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sb_enable_legacy_io();
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enable_aoac_devices();
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2019-06-21 00:28:33 +02:00
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sb_reset_i2c_slaves();
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2020-06-12 00:27:49 +02:00
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/*
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* On reset Range_0 defaults to enabled. We want to start with a clean
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* slate to not have things unexpectedly enabled.
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*/
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clear_uart_legacy_config();
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2020-06-16 15:35:20 +02:00
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if (CONFIG(PICASSO_CONSOLE_UART))
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2019-06-20 18:29:29 +02:00
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set_uart_config(CONFIG_UART_FOR_CONSOLE);
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2019-04-22 22:55:16 +02:00
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}
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static void print_num_status_bits(int num_bits, uint32_t status,
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const char *const bit_names[])
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{
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int i;
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if (!status)
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return;
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for (i = num_bits - 1; i >= 0; i--) {
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if (status & (1 << i)) {
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if (bit_names[i])
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printk(BIOS_DEBUG, "%s ", bit_names[i]);
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else
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printk(BIOS_DEBUG, "BIT%d ", i);
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}
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}
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}
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static void sb_print_pmxc0_status(void)
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{
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/* PMxC0 S5/Reset Status shows the source of previous reset. */
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uint32_t pmxc0_status = pm_read32(PM_RST_STATUS);
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static const char *const pmxc0_status_bits[32] = {
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[0] = "ThermalTrip",
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[1] = "FourSecondPwrBtn",
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[2] = "Shutdown",
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[3] = "ThermalTripFromTemp",
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[4] = "RemotePowerDownFromASF",
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[5] = "ShutDownFan0",
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[16] = "UserRst",
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[17] = "SoftPciRst",
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[18] = "DoInit",
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[19] = "DoReset",
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[20] = "DoFullReset",
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[21] = "SleepReset",
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[22] = "KbReset",
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[23] = "LtReset",
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[24] = "FailBootRst",
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[25] = "WatchdogIssueReset",
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[26] = "RemoteResetFromASF",
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[27] = "SyncFlood",
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[28] = "HangReset",
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[29] = "EcWatchdogRst",
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};
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printk(BIOS_DEBUG, "PMxC0 STATUS: 0x%x ", pmxc0_status);
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print_num_status_bits(ARRAY_SIZE(pmxc0_status_bits), pmxc0_status,
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pmxc0_status_bits);
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printk(BIOS_DEBUG, "\n");
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}
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/* After console init */
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2019-06-21 00:28:33 +02:00
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void fch_early_init(void)
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2019-04-22 22:55:16 +02:00
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{
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sb_print_pmxc0_status();
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2019-06-21 00:28:33 +02:00
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i2c_soc_early_init();
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2020-04-11 19:58:57 +02:00
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if (CONFIG(DISABLE_SPI_FLASH_ROM_SHARING))
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lpc_disable_spi_rom_sharing();
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2020-05-10 03:30:51 +02:00
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if (CONFIG(SOC_AMD_COMMON_BLOCK_USE_ESPI)) {
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espi_setup();
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espi_configure_decodes();
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}
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2019-04-22 22:55:16 +02:00
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}
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void sb_enable(struct device *dev)
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{
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printk(BIOS_DEBUG, "%s\n", __func__);
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}
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static void sb_init_acpi_ports(void)
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{
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u32 reg;
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/* We use some of these ports in SMM regardless of whether or not
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* ACPI tables are generated. Enable these ports indiscriminately.
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*/
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pm_write16(PM_EVT_BLK, ACPI_PM_EVT_BLK);
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pm_write16(PM1_CNT_BLK, ACPI_PM1_CNT_BLK);
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pm_write16(PM_TMR_BLK, ACPI_PM_TMR_BLK);
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pm_write16(PM_GPE0_BLK, ACPI_GPE0_BLK);
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2019-06-21 00:28:33 +02:00
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2019-04-22 22:55:16 +02:00
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if (CONFIG(HAVE_SMI_HANDLER)) {
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/* APMC - SMI Command Port */
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pm_write16(PM_ACPI_SMI_CMD, APM_CNT);
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configure_smi(SMITYPE_SMI_CMD_PORT, SMI_MODE_SMI);
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/* SMI on SlpTyp requires sending SMI before completion
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* response of the I/O write. The BKDG also specifies
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* clearing ForceStpClkRetry for SMI trapping.
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*/
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reg = pm_read32(PM_PCI_CTRL);
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reg |= FORCE_SLPSTATE_RETRY;
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pm_write32(PM_PCI_CTRL, reg);
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/* Disable SlpTyp feature */
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reg = pm_read8(PM_RST_CTRL1);
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reg &= ~SLPTYPE_CONTROL_EN;
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pm_write8(PM_RST_CTRL1, reg);
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configure_smi(SMITYPE_SLP_TYP, SMI_MODE_SMI);
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} else {
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pm_write16(PM_ACPI_SMI_CMD, 0);
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}
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/* Decode ACPI registers and enable standard features */
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pm_write8(PM_ACPI_CONF, PM_ACPI_DECODE_STD |
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PM_ACPI_GLOBAL_EN |
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PM_ACPI_RTC_EN_EN |
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PM_ACPI_TIMER_EN_EN);
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}
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static int get_index_bit(uint32_t value, uint16_t limit)
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{
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uint16_t i;
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uint32_t t;
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if (limit >= TOTAL_BITS(uint32_t))
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return -1;
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/* get a mask of valid bits. Ex limit = 3, set bits 0-2 */
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t = (1 << limit) - 1;
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if ((value & t) == 0)
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return -1;
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t = 1;
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for (i = 0; i < limit; i++) {
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if (value & t)
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break;
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t <<= 1;
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}
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return i;
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}
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static void set_nvs_sws(void *unused)
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{
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struct soc_power_reg *sws;
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2020-06-17 22:37:49 +02:00
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struct global_nvs *gnvs;
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2019-04-22 22:55:16 +02:00
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int index;
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sws = cbmem_find(CBMEM_ID_POWER_STATE);
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if (sws == NULL)
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return;
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2020-06-14 11:01:58 +02:00
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gnvs = acpi_get_gnvs();
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2019-04-22 22:55:16 +02:00
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if (gnvs == NULL)
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return;
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index = get_index_bit(sws->pm1_sts & sws->pm1_en, PM1_LIMIT);
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if (index < 0)
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gnvs->pm1i = ~0ULL;
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else
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gnvs->pm1i = index;
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|
|
|
|
|
index = get_index_bit(sws->gpe0_sts & sws->gpe0_en, GPE0_LIMIT);
|
|
|
|
if (index < 0)
|
|
|
|
gnvs->gpei = ~0ULL;
|
|
|
|
else
|
|
|
|
gnvs->gpei = index;
|
|
|
|
}
|
|
|
|
|
|
|
|
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, set_nvs_sws, NULL);
|
|
|
|
|
2020-06-26 15:47:00 +02:00
|
|
|
/*
|
|
|
|
* A-Link to AHB bridge, part of the AMBA fabric. These are internal clocks
|
|
|
|
* and unneeded for Raven/Picasso so gate them to save power.
|
|
|
|
*/
|
|
|
|
static void al2ahb_clock_gate(void)
|
|
|
|
{
|
|
|
|
uint8_t al2ahb_val;
|
|
|
|
uintptr_t al2ahb_base = ALINK_AHB_ADDRESS;
|
|
|
|
|
|
|
|
al2ahb_val = read8((void *)(al2ahb_base + AL2AHB_CONTROL_CLK_OFFSET));
|
|
|
|
al2ahb_val |= AL2AHB_CLK_GATE_EN;
|
|
|
|
write8((void *)(al2ahb_base + AL2AHB_CONTROL_CLK_OFFSET), al2ahb_val);
|
|
|
|
al2ahb_val = read8((void *)(al2ahb_base + AL2AHB_CONTROL_HCLK_OFFSET));
|
|
|
|
al2ahb_val |= AL2AHB_HCLK_GATE_EN;
|
|
|
|
write8((void *)(al2ahb_base + AL2AHB_CONTROL_HCLK_OFFSET), al2ahb_val);
|
|
|
|
}
|
|
|
|
|
2019-04-22 22:55:16 +02:00
|
|
|
void southbridge_init(void *chip_info)
|
|
|
|
{
|
2020-04-09 23:24:50 +02:00
|
|
|
i2c_soc_init();
|
2019-04-22 22:55:16 +02:00
|
|
|
sb_init_acpi_ports();
|
|
|
|
acpi_clear_pm1_status();
|
2020-06-26 15:47:00 +02:00
|
|
|
al2ahb_clock_gate();
|
2019-04-22 22:55:16 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
void southbridge_final(void *chip_info)
|
|
|
|
{
|
|
|
|
uint8_t restored_power = PM_S5_AT_POWER_RECOVERY;
|
|
|
|
|
|
|
|
if (CONFIG(MAINBOARD_POWER_RESTORE))
|
|
|
|
restored_power = PM_RESTORE_S0_IF_PREV_S0;
|
|
|
|
pm_write8(PM_RTC_SHADOW, restored_power);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Update the PCI devices with a valid IRQ number
|
|
|
|
* that is set in the mainboard PCI_IRQ structures.
|
|
|
|
*/
|
|
|
|
static void set_pci_irqs(void *unused)
|
|
|
|
{
|
|
|
|
/* Write PCI_INTR regs 0xC00/0xC01 */
|
|
|
|
write_pci_int_table();
|
|
|
|
|
|
|
|
/* Write IRQs for all devicetree enabled devices */
|
|
|
|
write_pci_cfg_irqs();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Hook this function into the PCI state machine
|
|
|
|
* on entry into BS_DEV_ENABLE.
|
|
|
|
*/
|
|
|
|
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, set_pci_irqs, NULL);
|