x86: baytrail: Generate ACPI FADT/MADT tables

FADT/MADT tables are platform specific. Generate them for BayTrail.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/cpu/baytrail/Makefile b/arch/x86/cpu/baytrail/Makefile
index 5be5491643b0bb8a06431d2c09ca2d4345af4f36..a0216f30590e5795324afd1dd46b68b99108303f 100644 (file)
--- a/arch/x86/cpu/baytrail/Makefile
+++ b/arch/x86/cpu/baytrail/Makefile
@@ -8,3 +8,4 @@ obj-y += cpu.o
 obj-y += early_uart.o
 obj-y += fsp_configs.o
 obj-y += valleyview.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += acpi.o

diff --git a/arch/x86/cpu/baytrail/acpi.c b/arch/x86/cpu/baytrail/acpi.c
new file mode 100644 (file)
index 0000000..1d54f7d
--- /dev/null
+++ b/arch/x86/cpu/baytrail/acpi.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/acpi_table.h>
+#include <asm/ioapic.h>
+#include <asm/mpspec.h>
+#include <asm/tables.h>
+#include <asm/arch/iomap.h>
+
+void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
+                     void *dsdt)
+{
+       struct acpi_table_header *header = &(fadt->header);
+       u16 pmbase = ACPI_BASE_ADDRESS;
+
+       memset((void *)fadt, 0, sizeof(struct acpi_fadt));
+
+       acpi_fill_header(header, "FACP");
+       header->length = sizeof(struct acpi_fadt);
+       header->revision = 4;
+
+       fadt->firmware_ctrl = (u32)facs;
+       fadt->dsdt = (u32)dsdt;
+       fadt->preferred_pm_profile = ACPI_PM_MOBILE;
+       fadt->sci_int = 9;
+       fadt->smi_cmd = 0;
+       fadt->acpi_enable = 0;
+       fadt->acpi_disable = 0;
+       fadt->s4bios_req = 0;
+       fadt->pstate_cnt = 0;
+       fadt->pm1a_evt_blk = pmbase;
+       fadt->pm1b_evt_blk = 0x0;
+       fadt->pm1a_cnt_blk = pmbase + 0x4;
+       fadt->pm1b_cnt_blk = 0x0;
+       fadt->pm2_cnt_blk = pmbase + 0x50;
+       fadt->pm_tmr_blk = pmbase + 0x8;
+       fadt->gpe0_blk = pmbase + 0x20;
+       fadt->gpe1_blk = 0;
+       fadt->pm1_evt_len = 4;
+       fadt->pm1_cnt_len = 2;
+       fadt->pm2_cnt_len = 1;
+       fadt->pm_tmr_len = 4;
+       fadt->gpe0_blk_len = 8;
+       fadt->gpe1_blk_len = 0;
+       fadt->gpe1_base = 0;
+       fadt->cst_cnt = 0;
+       fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
+       fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED;
+       fadt->flush_size = 0;
+       fadt->flush_stride = 0;
+       fadt->duty_offset = 1;
+       fadt->duty_width = 0;
+       fadt->day_alrm = 0x0d;
+       fadt->mon_alrm = 0x00;
+       fadt->century = 0x00;
+       fadt->iapc_boot_arch = ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042;
+       fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED |
+               ACPI_FADT_C2_MP_SUPPORTED | ACPI_FADT_SLEEP_BUTTON |
+               ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_RESET_REGISTER |
+               ACPI_FADT_PLATFORM_CLOCK;
+
+       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 = IO_PORT_RESET;
+       fadt->reset_reg.addrh = 0;
+       fadt->reset_value = SYS_RST | RST_CPU;
+
+       fadt->x_firmware_ctl_l = (u32)facs;
+       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 = fadt->pm1_evt_len * 8;
+       fadt->x_pm1a_evt_blk.bit_offset = 0;
+       fadt->x_pm1a_evt_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+       fadt->x_pm1a_evt_blk.addrl = fadt->pm1a_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 = fadt->pm1_cnt_len * 8;
+       fadt->x_pm1a_cnt_blk.bit_offset = 0;
+       fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
+       fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_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;
+
+       fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+       fadt->x_pm2_cnt_blk.bit_width = fadt->pm2_cnt_len * 8;
+       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 = fadt->pm2_cnt_blk;
+       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 = fadt->pm_tmr_len * 8;
+       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 = fadt->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 = fadt->gpe0_blk_len * 8;
+       fadt->x_gpe0_blk.bit_offset = 0;
+       fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+       fadt->x_gpe0_blk.addrl = fadt->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 = 0x0;
+       fadt->x_gpe1_blk.addrh = 0x0;
+
+       header->checksum = table_compute_checksum(fadt, header->length);
+}
+
+static int acpi_create_madt_irq_overrides(u32 current)
+{
+       struct acpi_madt_irqoverride *irqovr;
+       u16 sci_flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
+       int length = 0;
+
+       irqovr = (void *)current;
+       length += acpi_create_madt_irqoverride(irqovr, 0, 0, 2, 0);
+
+       irqovr = (void *)(current + length);
+       length += acpi_create_madt_irqoverride(irqovr, 0, 9, 9, sci_flags);
+
+       return length;
+}
+
+u32 acpi_fill_madt(u32 current)
+{
+       current += acpi_create_madt_lapics(current);
+
+       current += acpi_create_madt_ioapic((struct acpi_madt_ioapic *)current,
+                       2, IO_APIC_ADDR, 0);
+
+       current += acpi_create_madt_irq_overrides(current);
+
+       return current;
+}