#include <cpu.h>
#include <dm.h>
#include <dm/uclass-internal.h>
+#include <mapmem.h>
+#include <serial.h>
#include <version.h>
+#include <acpi/acpi_table.h>
#include <asm/acpi/global_nvs.h>
-#include <asm/acpi_table.h>
-#include <asm/io.h>
#include <asm/ioapic.h>
#include <asm/lapic.h>
#include <asm/mpspec.h>
#include <asm/tables.h>
#include <asm/arch/global_nvs.h>
+#include <dm/acpi.h>
/*
* IASL compiles the dsdt entries and writes the hex values
/* ACPI RSDP address to be used in boot parameters */
static ulong acpi_rsdp_addr;
-static void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt,
- struct acpi_xsdt *xsdt)
-{
- memset(rsdp, 0, sizeof(struct acpi_rsdp));
-
- memcpy(rsdp->signature, RSDP_SIG, 8);
- memcpy(rsdp->oem_id, OEM_ID, 6);
-
- rsdp->length = sizeof(struct acpi_rsdp);
- rsdp->rsdt_address = (u32)rsdt;
-
- /*
- * Revision: ACPI 1.0: 0, ACPI 2.0/3.0/4.0: 2
- *
- * Some OSes expect an XSDT to be present for RSD PTR revisions >= 2.
- * If we don't have an ACPI XSDT, force ACPI 1.0 (and thus RSD PTR
- * revision 0)
- */
- if (xsdt == NULL) {
- rsdp->revision = ACPI_RSDP_REV_ACPI_1_0;
- } else {
- rsdp->xsdt_address = (u64)(u32)xsdt;
- rsdp->revision = ACPI_RSDP_REV_ACPI_2_0;
- }
-
- /* Calculate checksums */
- rsdp->checksum = table_compute_checksum((void *)rsdp, 20);
- rsdp->ext_checksum = table_compute_checksum((void *)rsdp,
- sizeof(struct acpi_rsdp));
-}
-
-void acpi_fill_header(struct acpi_table_header *header, char *signature)
-{
- memcpy(header->signature, signature, 4);
- memcpy(header->oem_id, OEM_ID, 6);
- memcpy(header->oem_table_id, OEM_TABLE_ID, 8);
- header->oem_revision = U_BOOT_BUILD_DATE;
- memcpy(header->aslc_id, ASLC_ID, 4);
-}
-
-static void acpi_write_rsdt(struct acpi_rsdt *rsdt)
-{
- struct acpi_table_header *header = &(rsdt->header);
-
- /* Fill out header fields */
- acpi_fill_header(header, "RSDT");
- header->length = sizeof(struct acpi_rsdt);
- header->revision = 1;
-
- /* Entries are filled in later, we come with an empty set */
-
- /* Fix checksum */
- header->checksum = table_compute_checksum((void *)rsdt,
- sizeof(struct acpi_rsdt));
-}
-
-static void acpi_write_xsdt(struct acpi_xsdt *xsdt)
-{
- struct acpi_table_header *header = &(xsdt->header);
-
- /* Fill out header fields */
- acpi_fill_header(header, "XSDT");
- header->length = sizeof(struct acpi_xsdt);
- header->revision = 1;
-
- /* Entries are filled in later, we come with an empty set */
-
- /* Fix checksum */
- header->checksum = table_compute_checksum((void *)xsdt,
- sizeof(struct acpi_xsdt));
-}
-
-/**
- * Add an ACPI table to the RSDT (and XSDT) structure, recalculate length
- * and checksum.
- */
-static void acpi_add_table(struct acpi_rsdp *rsdp, void *table)
-{
- int i, entries_num;
- struct acpi_rsdt *rsdt;
- struct acpi_xsdt *xsdt = NULL;
-
- /* The RSDT is mandatory while the XSDT is not */
- rsdt = (struct acpi_rsdt *)rsdp->rsdt_address;
-
- if (rsdp->xsdt_address)
- xsdt = (struct acpi_xsdt *)((u32)rsdp->xsdt_address);
-
- /* This should always be MAX_ACPI_TABLES */
- entries_num = ARRAY_SIZE(rsdt->entry);
-
- for (i = 0; i < entries_num; i++) {
- if (rsdt->entry[i] == 0)
- break;
- }
-
- if (i >= entries_num) {
- debug("ACPI: Error: too many tables\n");
- return;
- }
-
- /* Add table to the RSDT */
- rsdt->entry[i] = (u32)table;
-
- /* Fix RSDT length or the kernel will assume invalid entries */
- rsdt->header.length = sizeof(struct acpi_table_header) +
- (sizeof(u32) * (i + 1));
-
- /* Re-calculate checksum */
- rsdt->header.checksum = 0;
- rsdt->header.checksum = table_compute_checksum((u8 *)rsdt,
- rsdt->header.length);
-
- /*
- * And now the same thing for the XSDT. We use the same index as for
- * now we want the XSDT and RSDT to always be in sync in U-Boot
- */
- if (xsdt) {
- /* Add table to the XSDT */
- xsdt->entry[i] = (u64)(u32)table;
-
- /* Fix XSDT length */
- xsdt->header.length = sizeof(struct acpi_table_header) +
- (sizeof(u64) * (i + 1));
-
- /* Re-calculate checksum */
- xsdt->header.checksum = 0;
- xsdt->header.checksum = table_compute_checksum((u8 *)xsdt,
- xsdt->header.length);
- }
-}
-
static void acpi_create_facs(struct acpi_facs *facs)
{
memset((void *)facs, 0, sizeof(struct acpi_facs));
header->checksum = table_compute_checksum((void *)mcfg, header->length);
}
-void enter_acpi_mode(int pm1_cnt)
+__weak u32 acpi_fill_csrt(u32 current)
+{
+ return current;
+}
+
+static void acpi_create_csrt(struct acpi_csrt *csrt)
+{
+ struct acpi_table_header *header = &(csrt->header);
+ u32 current = (u32)csrt + sizeof(struct acpi_csrt);
+
+ memset((void *)csrt, 0, sizeof(struct acpi_csrt));
+
+ /* Fill out header fields */
+ acpi_fill_header(header, "CSRT");
+ header->length = sizeof(struct acpi_csrt);
+ header->revision = 0;
+
+ current = acpi_fill_csrt(current);
+
+ /* (Re)calculate length and checksum */
+ header->length = current - (u32)csrt;
+ header->checksum = table_compute_checksum((void *)csrt, header->length);
+}
+
+static void acpi_create_spcr(struct acpi_spcr *spcr)
{
- u16 val = inw(pm1_cnt);
+ struct acpi_table_header *header = &(spcr->header);
+ struct serial_device_info serial_info = {0};
+ ulong serial_address, serial_offset;
+ struct udevice *dev;
+ uint serial_config;
+ uint serial_width;
+ int access_size;
+ int space_id;
+ int ret = -ENODEV;
+
+ /* Fill out header fields */
+ acpi_fill_header(header, "SPCR");
+ header->length = sizeof(struct acpi_spcr);
+ header->revision = 2;
+
+ /* Read the device once, here. It is reused below */
+ dev = gd->cur_serial_dev;
+ if (dev)
+ ret = serial_getinfo(dev, &serial_info);
+ if (ret)
+ serial_info.type = SERIAL_CHIP_UNKNOWN;
+
+ /* Encode chip type */
+ switch (serial_info.type) {
+ case SERIAL_CHIP_16550_COMPATIBLE:
+ spcr->interface_type = ACPI_DBG2_16550_COMPATIBLE;
+ break;
+ case SERIAL_CHIP_UNKNOWN:
+ default:
+ spcr->interface_type = ACPI_DBG2_UNKNOWN;
+ break;
+ }
+
+ /* Encode address space */
+ switch (serial_info.addr_space) {
+ case SERIAL_ADDRESS_SPACE_MEMORY:
+ space_id = ACPI_ADDRESS_SPACE_MEMORY;
+ break;
+ case SERIAL_ADDRESS_SPACE_IO:
+ default:
+ space_id = ACPI_ADDRESS_SPACE_IO;
+ break;
+ }
+
+ serial_width = serial_info.reg_width * 8;
+ serial_offset = serial_info.reg_offset << serial_info.reg_shift;
+ serial_address = serial_info.addr + serial_offset;
+
+ /* Encode register access size */
+ switch (serial_info.reg_shift) {
+ case 0:
+ access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
+ break;
+ case 1:
+ access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
+ break;
+ case 2:
+ access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+ break;
+ case 3:
+ access_size = ACPI_ACCESS_SIZE_QWORD_ACCESS;
+ break;
+ default:
+ access_size = ACPI_ACCESS_SIZE_UNDEFINED;
+ break;
+ }
+
+ debug("UART type %u @ %lx\n", spcr->interface_type, serial_address);
+
+ /* Fill GAS */
+ spcr->serial_port.space_id = space_id;
+ spcr->serial_port.bit_width = serial_width;
+ spcr->serial_port.bit_offset = 0;
+ spcr->serial_port.access_size = access_size;
+ spcr->serial_port.addrl = lower_32_bits(serial_address);
+ spcr->serial_port.addrh = upper_32_bits(serial_address);
+
+ /* Encode baud rate */
+ switch (serial_info.baudrate) {
+ case 9600:
+ spcr->baud_rate = 3;
+ break;
+ case 19200:
+ spcr->baud_rate = 4;
+ break;
+ case 57600:
+ spcr->baud_rate = 6;
+ break;
+ case 115200:
+ spcr->baud_rate = 7;
+ break;
+ default:
+ spcr->baud_rate = 0;
+ break;
+ }
+
+ serial_config = SERIAL_DEFAULT_CONFIG;
+ if (dev)
+ ret = serial_getconfig(dev, &serial_config);
+
+ spcr->parity = SERIAL_GET_PARITY(serial_config);
+ spcr->stop_bits = SERIAL_GET_STOP(serial_config);
+
+ /* No PCI devices for now */
+ spcr->pci_device_id = 0xffff;
+ spcr->pci_vendor_id = 0xffff;
/*
- * PM1_CNT register bit0 selects the power management event to be
- * either an SCI or SMI interrupt. When this bit is set, then power
- * management events will generate an SCI interrupt. When this bit
- * is reset power management events will generate an SMI interrupt.
- *
- * Per ACPI spec, it is the responsibility of the hardware to set
- * or reset this bit. OSPM always preserves this bit position.
- *
- * U-Boot does not support SMI. And we don't have plan to support
- * anything running in SMM within U-Boot. To create a legacy-free
- * system, and expose ourselves to OSPM as working under ACPI mode
- * already, turn this bit on.
+ * SPCR has no clue if the UART base clock speed is different
+ * to the default one. However, the SPCR 1.04 defines baud rate
+ * 0 as a preconfigured state of UART and OS is supposed not
+ * to touch the configuration of the serial device.
*/
- outw(val | PM1_CNT_SCI_EN, pm1_cnt);
+ if (serial_info.clock != SERIAL_DEFAULT_CLOCK)
+ spcr->baud_rate = 0;
+
+ /* Fix checksum */
+ header->checksum = table_compute_checksum((void *)spcr, header->length);
}
/*
* QEMU's version of write_acpi_tables is defined in drivers/misc/qfw.c
*/
-ulong write_acpi_tables(ulong start)
+ulong write_acpi_tables(ulong start_addr)
{
- u32 current;
- struct acpi_rsdp *rsdp;
- struct acpi_rsdt *rsdt;
- struct acpi_xsdt *xsdt;
+ struct acpi_ctx sctx, *ctx = &sctx;
struct acpi_facs *facs;
struct acpi_table_header *dsdt;
struct acpi_fadt *fadt;
struct acpi_mcfg *mcfg;
struct acpi_madt *madt;
+ struct acpi_csrt *csrt;
+ struct acpi_spcr *spcr;
+ void *start;
+ ulong addr;
int i;
- current = start;
-
- /* Align ACPI tables to 16 byte */
- current = ALIGN(current, 16);
-
- debug("ACPI: Writing ACPI tables at %lx\n", start);
-
- /* We need at least an RSDP and an RSDT Table */
- rsdp = (struct acpi_rsdp *)current;
- current += sizeof(struct acpi_rsdp);
- current = ALIGN(current, 16);
- rsdt = (struct acpi_rsdt *)current;
- current += sizeof(struct acpi_rsdt);
- current = ALIGN(current, 16);
- xsdt = (struct acpi_xsdt *)current;
- current += sizeof(struct acpi_xsdt);
- /*
- * Per ACPI spec, the FACS table address must be aligned to a 64 byte
- * boundary (Windows checks this, but Linux does not).
- */
- current = ALIGN(current, 64);
+ start = map_sysmem(start_addr, 0);
- /* clear all table memory */
- memset((void *)start, 0, current - start);
+ debug("ACPI: Writing ACPI tables at %lx\n", start_addr);
- acpi_write_rsdp(rsdp, rsdt, xsdt);
- acpi_write_rsdt(rsdt);
- acpi_write_xsdt(xsdt);
+ acpi_setup_base_tables(ctx, start);
debug("ACPI: * FACS\n");
- facs = (struct acpi_facs *)current;
- current += sizeof(struct acpi_facs);
- current = ALIGN(current, 16);
+ facs = ctx->current;
+ acpi_inc_align(ctx, sizeof(struct acpi_facs));
acpi_create_facs(facs);
debug("ACPI: * DSDT\n");
- dsdt = (struct acpi_table_header *)current;
+ dsdt = ctx->current;
memcpy(dsdt, &AmlCode, sizeof(struct acpi_table_header));
- current += sizeof(struct acpi_table_header);
- memcpy((char *)current,
+ acpi_inc(ctx, sizeof(struct acpi_table_header));
+ memcpy(ctx->current,
(char *)&AmlCode + sizeof(struct acpi_table_header),
dsdt->length - sizeof(struct acpi_table_header));
- current += dsdt->length - sizeof(struct acpi_table_header);
- current = ALIGN(current, 16);
+ acpi_inc_align(ctx, dsdt->length - sizeof(struct acpi_table_header));
/* Pack GNVS into the ACPI table area */
for (i = 0; i < dsdt->length; i++) {
u32 *gnvs = (u32 *)((u32)dsdt + i);
if (*gnvs == ACPI_GNVS_ADDR) {
- debug("Fix up global NVS in DSDT to 0x%08x\n", current);
- *gnvs = current;
+ ulong addr = (ulong)map_to_sysmem(ctx->current);
+
+ debug("Fix up global NVS in DSDT to %#08lx\n", addr);
+ *gnvs = addr;
break;
}
}
dsdt->checksum = table_compute_checksum((void *)dsdt, dsdt->length);
/* Fill in platform-specific global NVS variables */
- acpi_create_gnvs((struct acpi_global_nvs *)current);
- current += sizeof(struct acpi_global_nvs);
- current = ALIGN(current, 16);
+ acpi_create_gnvs(ctx->current);
+ acpi_inc_align(ctx, sizeof(struct acpi_global_nvs));
debug("ACPI: * FADT\n");
- fadt = (struct acpi_fadt *)current;
- current += sizeof(struct acpi_fadt);
- current = ALIGN(current, 16);
+ fadt = ctx->current;
+ acpi_inc_align(ctx, sizeof(struct acpi_fadt));
acpi_create_fadt(fadt, facs, dsdt);
- acpi_add_table(rsdp, fadt);
+ acpi_add_table(ctx, fadt);
debug("ACPI: * MADT\n");
- madt = (struct acpi_madt *)current;
+ madt = ctx->current;
acpi_create_madt(madt);
- current += madt->header.length;
- acpi_add_table(rsdp, madt);
- current = ALIGN(current, 16);
+ acpi_inc_align(ctx, madt->header.length);
+ acpi_add_table(ctx, madt);
debug("ACPI: * MCFG\n");
- mcfg = (struct acpi_mcfg *)current;
+ mcfg = ctx->current;
acpi_create_mcfg(mcfg);
- current += mcfg->header.length;
- acpi_add_table(rsdp, mcfg);
- current = ALIGN(current, 16);
+ acpi_inc_align(ctx, mcfg->header.length);
+ acpi_add_table(ctx, mcfg);
- debug("current = %x\n", current);
+ debug("ACPI: * CSRT\n");
+ csrt = ctx->current;
+ acpi_create_csrt(csrt);
+ acpi_inc_align(ctx, csrt->header.length);
+ acpi_add_table(ctx, csrt);
- acpi_rsdp_addr = (unsigned long)rsdp;
- debug("ACPI: done\n");
+ debug("ACPI: * SPCR\n");
+ spcr = ctx->current;
+ acpi_create_spcr(spcr);
+ acpi_inc_align(ctx, spcr->header.length);
+ acpi_add_table(ctx, spcr);
- /* Don't touch ACPI hardware on HW reduced platforms */
- if (fadt->flags & ACPI_FADT_HW_REDUCED_ACPI)
- return current;
+ acpi_write_dev_tables(ctx);
- /*
- * Other than waiting for OSPM to request us to switch to ACPI mode,
- * do it by ourselves, since SMI will not be triggered.
- */
- enter_acpi_mode(fadt->pm1a_cnt_blk);
+ addr = map_to_sysmem(ctx->current);
+ debug("current = %lx\n", addr);
- return current;
+ acpi_rsdp_addr = (unsigned long)ctx->rsdp;
+ debug("ACPI: done\n");
+
+ return addr;
}
ulong acpi_get_rsdp_addr(void)
{
return acpi_rsdp_addr;
}
-
-static struct acpi_rsdp *acpi_valid_rsdp(struct acpi_rsdp *rsdp)
-{
- if (strncmp((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0)
- return NULL;
-
- debug("Looking on %p for valid checksum\n", rsdp);
-
- if (table_compute_checksum((void *)rsdp, 20) != 0)
- return NULL;
- debug("acpi rsdp checksum 1 passed\n");
-
- if ((rsdp->revision > 1) &&
- (table_compute_checksum((void *)rsdp, rsdp->length) != 0))
- return NULL;
- debug("acpi rsdp checksum 2 passed\n");
-
- return rsdp;
-}
-
-struct acpi_fadt *acpi_find_fadt(void)
-{
- char *p, *end;
- struct acpi_rsdp *rsdp = NULL;
- struct acpi_rsdt *rsdt;
- struct acpi_fadt *fadt = NULL;
- int i;
-
- /* Find RSDP */
- for (p = (char *)ROM_TABLE_ADDR; p < (char *)ROM_TABLE_END; p += 16) {
- rsdp = acpi_valid_rsdp((struct acpi_rsdp *)p);
- if (rsdp)
- break;
- }
-
- if (rsdp == NULL)
- return NULL;
-
- debug("RSDP found at %p\n", rsdp);
- rsdt = (struct acpi_rsdt *)rsdp->rsdt_address;
-
- end = (char *)rsdt + rsdt->header.length;
- debug("RSDT found at %p ends at %p\n", rsdt, end);
-
- for (i = 0; ((char *)&rsdt->entry[i]) < end; i++) {
- fadt = (struct acpi_fadt *)rsdt->entry[i];
- if (strncmp((char *)fadt, "FACP", 4) == 0)
- break;
- fadt = NULL;
- }
-
- if (fadt == NULL)
- return NULL;
-
- debug("FADT found at %p\n", fadt);
- return fadt;
-}
-
-void *acpi_find_wakeup_vector(struct acpi_fadt *fadt)
-{
- struct acpi_facs *facs;
- void *wake_vec;
-
- debug("Trying to find the wakeup vector...\n");
-
- facs = (struct acpi_facs *)fadt->firmware_ctrl;
-
- if (facs == NULL) {
- debug("No FACS found, wake up from S3 not possible.\n");
- return NULL;
- }
-
- debug("FACS found at %p\n", facs);
- wake_vec = (void *)facs->firmware_waking_vector;
- debug("OS waking vector is %p\n", wake_vec);
-
- return wake_vec;
-}
projects / platform / kernel / u-boot.git / blobdiff