1 files changed, 406 insertions, 0 deletions

diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
new file mode 100644
index 0000000000..d1ea24ffd5
--- /dev/null
+++ b/src/soc/amd/picasso/acpi.c
@@ -0,0 +1,406 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012, 2017 Advanced Micro Devices, Inc.
+ * Copyright (C) 2014 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * ACPI - create the Fixed ACPI Description Tables (FADT)
+ */
+
+#include <string.h>
+#include <console/console.h>
+#include <arch/acpi.h>
+#include <arch/acpigen.h>
+#include <device/pci_ops.h>
+#include <arch/ioapic.h>
+#include <cpu/x86/smm.h>
+#include <cbmem.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <amdblocks/acpimmio.h>
+#include <amdblocks/acpi.h>
+#include <soc/acpi.h>
+#include <soc/pci_devs.h>
+#include <soc/southbridge.h>
+#include <soc/northbridge.h>
+#include <soc/nvs.h>
+#include <soc/gpio.h>
+#include <version.h>
+
+unsigned long acpi_fill_madt(unsigned long current)
+{
+	/* create all subtables for processors */
+	current = acpi_create_madt_lapics(current);
+
+	/* Write Kern IOAPIC, only one */
+	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current,
+			CONFIG_MAX_CPUS, IO_APIC_ADDR, 0);
+
+	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current,
+			CONFIG_MAX_CPUS+1, IO_APIC2_ADDR, 24);
+
+	/* 0: mean bus 0--->ISA */
+	/* 0: PIC 0 */
+	/* 2: APIC 2 */
+	/* 5 mean: 0101 --> Edge-triggered, Active high */
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
+						current, 0, 0, 2, 0);
+	current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
+						current, 0, 9, 9, 0xf);
+
+	/* create all subtables for processors */
+	current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current,
+			0xff, 5, 1);
+	/* 1: LINT1 connect to NMI */
+
+	return current;
+}
+
+/*
+ * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
+ * in the ACPI 3.0b specification.
+ */
+void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
+{
+	acpi_header_t *header = &(fadt->header);
+
+	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", STONEYRIDGE_ACPI_IO_BASE);
+
+	/* Prepare the header */
+	memset((void *)fadt, 0, sizeof(acpi_fadt_t));
+	memcpy(header->signature, "FACP", 4);
+	header->length = sizeof(acpi_fadt_t);
+	header->revision = get_acpi_table_revision(FADT);
+	memcpy(header->oem_id, OEM_ID, 6);
+	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+	memcpy(header->asl_compiler_id, ASLC, 4);
+	header->asl_compiler_revision = asl_revision;
+
+	fadt->firmware_ctrl = (u32) facs;
+	fadt->dsdt = (u32) dsdt;
+	fadt->reserved = 0;		/* reserved, should be 0 ACPI 3.0 */
+	fadt->preferred_pm_profile = FADT_PM_PROFILE;
+	fadt->sci_int = 9;		/* IRQ 09 - ACPI SCI */
+
+	if (CONFIG(HAVE_SMI_HANDLER)) {
+		fadt->smi_cmd = APM_CNT;
+		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
+		fadt->acpi_disable = APM_CNT_ACPI_DISABLE;
+		fadt->s4bios_req = 0;	/* Not supported */
+		fadt->pstate_cnt = 0;	/* Not supported */
+		fadt->cst_cnt = 0;	/* Not supported */
+		acpi_disable_sci();
+	} else {
+		fadt->smi_cmd = 0;	/* disable system management mode */
+		fadt->acpi_enable = 0;	/* unused if SMI_CMD = 0 */
+		fadt->acpi_disable = 0;	/* unused if SMI_CMD = 0 */
+		fadt->s4bios_req = 0;	/* unused if SMI_CMD = 0 */
+		fadt->pstate_cnt = 0;	/* unused if SMI_CMD = 0 */
+		fadt->cst_cnt = 0x00;	/* unused if SMI_CMD = 0 */
+		acpi_enable_sci();
+	}
+
+	fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
+	fadt->pm1b_evt_blk = 0x0000;
+	fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;
+	fadt->pm1b_cnt_blk = 0x0000;
+	fadt->pm2_cnt_blk = 0x0000;
+	fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
+	fadt->gpe0_blk = ACPI_GPE0_BLK;
+	fadt->gpe1_blk = 0x0000;		/* No gpe1 block  */
+
+	fadt->pm1_evt_len = 4;	/* 32 bits */
+	fadt->pm1_cnt_len = 2;	/* 16 bits */
+	fadt->pm2_cnt_len = 0;
+	fadt->pm_tmr_len = 4;	/* 32 bits */
+	fadt->gpe0_blk_len = 8;	/* 64 bits */
+	fadt->gpe1_blk_len = 0;
+	fadt->gpe1_base = 0;
+
+	fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
+	fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
+	fadt->flush_size = 0;	/* set to 0 if WBINVD is 1 in flags */
+	fadt->flush_stride = 0;	/* set to 0 if WBINVD is 1 in flags */
+	fadt->duty_offset = 1;	/* CLK_VAL bits 3:1 */
+	fadt->duty_width = 3;	/* CLK_VAL bits 3:1 */
+	fadt->day_alrm = 0;	/* 0x7d these have to be */
+	fadt->mon_alrm = 0;	/* 0x7e added to cmos.layout */
+	fadt->century = 0;	/* 0x7f to make rtc alarm work */
+	fadt->iapc_boot_arch = FADT_BOOT_ARCH;	/* See table 5-10 */
+	fadt->res2 = 0;		/* reserved, MUST be 0 ACPI 3.0 */
+	fadt->flags = ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */
+				ACPI_FADT_C1_SUPPORTED |
+				ACPI_FADT_SLEEP_BUTTON |
+				ACPI_FADT_S4_RTC_WAKE |
+				ACPI_FADT_32BIT_TIMER |
+				ACPI_FADT_RESET_REGISTER |
+				ACPI_FADT_PCI_EXPRESS_WAKE |
+				ACPI_FADT_PLATFORM_CLOCK |
+				ACPI_FADT_S4_RTC_VALID |
+				ACPI_FADT_REMOTE_POWER_ON;
+
+	/* Format is from 5.2.3.1: Generic Address Structure */
+	/* reset_reg: see section 4.7.3.6 ACPI 3.0a spec */
+	/* 8 bit write of value 0x06 to 0xCF9 in IO space */
+	fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->reset_reg.bit_width = 8;
+	fadt->reset_reg.bit_offset = 0;
+	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
+	fadt->reset_reg.addrl = SYS_RESET;
+	fadt->reset_reg.addrh = 0x0;
+
+	fadt->reset_value = 6;
+
+	fadt->ARM_boot_arch = 0;	/* MUST be 0 ACPI 3.0 */
+	fadt->FADT_MinorVersion = 0;	/* MUST be 0 ACPI 3.0 */
+
+	fadt->x_firmware_ctl_l = 0;	/* set to 0 if firmware_ctrl is used */
+	fadt->x_firmware_ctl_h = 0;
+	fadt->x_dsdt_l = (u32) dsdt;
+	fadt->x_dsdt_h = 0;
+
+	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm1a_evt_blk.bit_width = 32;
+	fadt->x_pm1a_evt_blk.bit_offset = 0;
+	fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
+	fadt->x_pm1a_evt_blk.addrl = ACPI_PM_EVT_BLK;
+	fadt->x_pm1a_evt_blk.addrh = 0x0;
+
+	fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm1b_evt_blk.bit_width = 0;
+	fadt->x_pm1b_evt_blk.bit_offset = 0;
+	fadt->x_pm1b_evt_blk.access_size = 0;
+	fadt->x_pm1b_evt_blk.addrl = 0x0;
+	fadt->x_pm1b_evt_blk.addrh = 0x0;
+
+
+	fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm1a_cnt_blk.bit_width = 16;
+	fadt->x_pm1a_cnt_blk.bit_offset = 0;
+	fadt->x_pm1a_cnt_blk.access_size = 0;
+	fadt->x_pm1a_cnt_blk.addrl = ACPI_PM1_CNT_BLK;
+	fadt->x_pm1a_cnt_blk.addrh = 0x0;
+
+	fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm1b_cnt_blk.bit_width = 0;
+	fadt->x_pm1b_cnt_blk.bit_offset = 0;
+	fadt->x_pm1b_cnt_blk.access_size = 0;
+	fadt->x_pm1b_cnt_blk.addrl = 0x0;
+	fadt->x_pm1b_cnt_blk.addrh = 0x0;
+
+	/*
+	 * Note: Under this current AMD C state implementation, this is no
+	 *       longer used and should not be reported to OS.
+	 */
+	fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm2_cnt_blk.bit_width = 0;
+	fadt->x_pm2_cnt_blk.bit_offset = 0;
+	fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
+	fadt->x_pm2_cnt_blk.addrl = 0;
+	fadt->x_pm2_cnt_blk.addrh = 0x0;
+
+
+	fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm_tmr_blk.bit_width = 32;
+	fadt->x_pm_tmr_blk.bit_offset = 0;
+	fadt->x_pm_tmr_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm_tmr_blk.addrl = ACPI_PM_TMR_BLK;
+	fadt->x_pm_tmr_blk.addrh = 0x0;
+
+
+	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + Event Enable */
+	fadt->x_gpe0_blk.bit_offset = 0;
+	fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.addrl = ACPI_GPE0_BLK;
+	fadt->x_gpe0_blk.addrh = 0x0;
+
+
+	fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_gpe1_blk.bit_width = 0;
+	fadt->x_gpe1_blk.bit_offset = 0;
+	fadt->x_gpe1_blk.access_size = 0;
+	fadt->x_gpe1_blk.addrl = 0;
+	fadt->x_gpe1_blk.addrh = 0x0;
+
+	header->checksum = acpi_checksum((void *)fadt, sizeof(acpi_fadt_t));
+}
+
+void generate_cpu_entries(struct device *device)
+{
+	int cores, cpu;
+
+	/* Stoney Ridge is single node, just report # of cores */
+	cores = pci_read_config32(SOC_NB_DEV, NB_CAPABILITIES2) & CMP_CAP_MASK;
+	cores++; /* number of cores is CmpCap+1 */
+
+	printk(BIOS_DEBUG, "ACPI \\_PR report %d core(s)\n", cores);
+
+	/* Generate BSP \_PR.P000 */
+	acpigen_write_processor(0, ACPI_GPE0_BLK, 6);
+	acpigen_pop_len();
+
+	/* Generate AP \_PR.Pxxx */
+	for (cpu = 1; cpu < cores; cpu++) {
+		acpigen_write_processor(cpu, 0, 0);
+		acpigen_pop_len();
+	}
+}
+
+unsigned long southbridge_write_acpi_tables(struct device *device,
+		unsigned long current,
+		struct acpi_rsdp *rsdp)
+{
+	return acpi_write_hpet(device, current, rsdp);
+}
+
+static void acpi_create_gnvs(struct global_nvs_t *gnvs)
+{
+	/* Clear out GNVS. */
+	memset(gnvs, 0, sizeof(*gnvs));
+
+	if (CONFIG(CONSOLE_CBMEM))
+		gnvs->cbmc = (uintptr_t)cbmem_find(CBMEM_ID_CONSOLE);
+
+	if (CONFIG(CHROMEOS)) {
+		/* Initialize Verified Boot data */
+		chromeos_init_chromeos_acpi(&gnvs->chromeos);
+		gnvs->chromeos.vbt2 = ACTIVE_ECFW_RO;
+	}
+
+	/* Set unknown wake source */
+	gnvs->pm1i = ~0ULL;
+	gnvs->gpei = ~0ULL;
+
+	/* CPU core count */
+	gnvs->pcnt = dev_count_cpu();
+}
+
+void southbridge_inject_dsdt(struct device *device)
+{
+	struct global_nvs_t *gnvs;
+
+	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
+
+	if (gnvs) {
+		acpi_create_gnvs(gnvs);
+
+		/* Add it to DSDT */
+		acpigen_write_scope("\\");
+		acpigen_write_name_dword("NVSA", (uintptr_t)gnvs);
+		acpigen_pop_len();
+	}
+}
+
+static void acpigen_soc_get_gpio_in_local5(uintptr_t addr)
+{
+	/*
+	 *   Store (\_SB.GPR2 (addr), Local5)
+	 * \_SB.GPR2 is used to read control byte 2 from control register.
+	 * / It is defined in gpio_lib.asl.
+	 */
+	acpigen_write_store();
+	acpigen_emit_namestring("\\_SB.GPR2");
+	acpigen_write_integer(addr);
+	acpigen_emit_byte(LOCAL5_OP);
+}
+
+static int acpigen_soc_get_gpio_val(unsigned int gpio_num, uint32_t mask)
+{
+	if (gpio_num >= SOC_GPIO_TOTAL_PINS) {
+		printk(BIOS_WARNING, "Warning: Pin %d should be smaller than"
+					" %d\n", gpio_num, SOC_GPIO_TOTAL_PINS);
+		return -1;
+	}
+	uintptr_t addr = (uintptr_t) gpio_get_address(gpio_num);
+
+	acpigen_soc_get_gpio_in_local5(addr);
+
+	/* If (And (Local5, mask)) */
+	acpigen_write_if_and(LOCAL5_OP, mask);
+
+	/* Store (One, Local0) */
+	acpigen_write_store_ops(ONE_OP, LOCAL0_OP);
+
+	acpigen_pop_len();	/* If */
+
+	/* Else */
+	acpigen_write_else();
+
+	/* Store (Zero, Local0) */
+	acpigen_write_store_ops(ZERO_OP, LOCAL0_OP);
+
+	acpigen_pop_len();	/* Else */
+
+	return 0;
+}
+
+static int acpigen_soc_set_gpio_val(unsigned int gpio_num, uint32_t val)
+{
+	if (gpio_num >= SOC_GPIO_TOTAL_PINS) {
+		printk(BIOS_WARNING, "Warning: Pin %d should be smaller than"
+					" %d\n", gpio_num, SOC_GPIO_TOTAL_PINS);
+		return -1;
+	}
+	uintptr_t addr = (uintptr_t) gpio_get_address(gpio_num);
+
+	/* Store (0x40, Local0) */
+	acpigen_write_store();
+	acpigen_write_integer(GPIO_PIN_OUT);
+	acpigen_emit_byte(LOCAL0_OP);
+
+	acpigen_soc_get_gpio_in_local5(addr);
+
+	if (val) {
+		/* Or (Local5, GPIO_PIN_OUT, Local5) */
+		acpigen_write_or(LOCAL5_OP, LOCAL0_OP, LOCAL5_OP);
+	} else {
+		/* Not (GPIO_PIN_OUT, Local6) */
+		acpigen_write_not(LOCAL0_OP, LOCAL6_OP);
+
+		/* And (Local5, Local6, Local5) */
+		acpigen_write_and(LOCAL5_OP, LOCAL6_OP, LOCAL5_OP);
+	}
+
+	/*
+	 *   SB.GPW2 (addr, Local5)
+	 * \_SB.GPW2 is used to write control byte in control register
+	 * / byte 2. It is defined in gpio_lib.asl.
+	 */
+	acpigen_emit_namestring("\\_SB.GPW2");
+	acpigen_write_integer(addr);
+	acpigen_emit_byte(LOCAL5_OP);
+
+	return 0;
+}
+
+int acpigen_soc_read_rx_gpio(unsigned int gpio_num)
+{
+	return acpigen_soc_get_gpio_val(gpio_num, GPIO_PIN_IN);
+}
+
+int acpigen_soc_get_tx_gpio(unsigned int gpio_num)
+{
+	return acpigen_soc_get_gpio_val(gpio_num, GPIO_PIN_OUT);
+}
+
+int acpigen_soc_set_tx_gpio(unsigned int gpio_num)
+{
+	return acpigen_soc_set_gpio_val(gpio_num, 1);
+}
+
+int acpigen_soc_clear_tx_gpio(unsigned int gpio_num)
+{
+	return acpigen_soc_set_gpio_val(gpio_num, 0);
+}