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acpi: Add function to add ARM PL011 to ACPI DBG2 

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I3c3f7f579ec0ec4fdb72e1f6b785026daab17bac
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76297
Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2023-06-30 15:37:38 +02:00 committed by Lean Sheng Tan
parent 06cb997b0a
commit 736d4d25df
2 changed files with 55 additions and 23 deletions
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69
src/acpi/acpi.c
View File

@ -23,6 +23,7 @@
#include <cpu/cpu.h>
#include <device/mmio.h>
#include <device/pci.h>
#include <drivers/uart/pl011.h>
#include <string.h>
#include <types.h>
#include <version.h>
@ -817,12 +818,48 @@ static void acpi_create_dbg2(acpi_dbg2_header_t *dbg2,
header->checksum = acpi_checksum((uint8_t *)dbg2, header->length);
}
static unsigned long acpi_write_dbg2_uart(acpi_rsdp_t *rsdp, unsigned long current,
int space_id, uint64_t base, uint32_t size,
int access_size, const char *name)
{
acpi_dbg2_header_t *dbg2 = (acpi_dbg2_header_t *)current;
acpi_addr_t address;
memset(&address, 0, sizeof(address));
address.space_id = space_id;
address.addrl = (uint32_t)base;
address.addrh = (uint32_t)((base >> 32) & 0xffffffff);
address.access_size = access_size;
int subtype;
/* 16550-compatible with parameters defined in Generic Address Structure */
if (CONFIG(DRIVERS_UART_8250IO) || CONFIG(DRIVERS_UART_8250MEM))
subtype = ACPI_DBG2_PORT_SERIAL_16550;
else if (CONFIG(DRIVERS_UART_PL011))
subtype = ACPI_DBG2_PORT_SERIAL_ARM_PL011;
else
return current;
acpi_create_dbg2(dbg2,
ACPI_DBG2_PORT_SERIAL,
subtype,
&address, size,
name);
if (dbg2->header.length) {
current += dbg2->header.length;
current = acpi_align_current(current);
acpi_add_table(rsdp, dbg2);
}
return current;
}
unsigned long acpi_write_dbg2_pci_uart(acpi_rsdp_t *rsdp, unsigned long current,
const struct device *dev, uint8_t access_size)
{
acpi_dbg2_header_t *dbg2 = (acpi_dbg2_header_t *)current;
struct resource *res;
acpi_addr_t address;
if (!dev) {
printk(BIOS_DEBUG, "%s: Device not found\n", __func__);
@ -839,33 +876,25 @@ unsigned long acpi_write_dbg2_pci_uart(acpi_rsdp_t *rsdp, unsigned long current,
return current;
}
memset(&address, 0, sizeof(address));
int space_id;
if (res->flags & IORESOURCE_IO)
address.space_id = ACPI_ADDRESS_SPACE_IO;
space_id = ACPI_ADDRESS_SPACE_IO;
else if (res->flags & IORESOURCE_MEM)
address.space_id = ACPI_ADDRESS_SPACE_MEMORY;
space_id = ACPI_ADDRESS_SPACE_MEMORY;
else {
printk(BIOS_ERR, "%s: Unknown address space type\n", __func__);
return current;
}
address.addrl = (uint32_t)res->base;
address.addrh = (uint32_t)((res->base >> 32) & 0xffffffff);
address.access_size = access_size;
acpi_create_dbg2(dbg2,
ACPI_DBG2_PORT_SERIAL,
ACPI_DBG2_PORT_SERIAL_16550,
&address, res->size,
acpi_device_path(dev));
if (dbg2->header.length) {
current += dbg2->header.length;
current = acpi_align_current(current);
acpi_add_table(rsdp, dbg2);
return acpi_write_dbg2_uart(rsdp, current, space_id, res->base, res->size, access_size, acpi_device_path(dev));
}
return current;
unsigned long acpi_pl011_write_dbg2_uart(acpi_rsdp_t *rsdp, unsigned long current,
uint64_t base, const char *name)
{
return acpi_write_dbg2_uart(rsdp, current, ACPI_ADDRESS_SPACE_MEMORY, base,
sizeof(struct pl011_uart), ACPI_ACCESS_SIZE_DWORD_ACCESS,
name);
}
static void acpi_create_facs(void *header)

3
src/include/acpi/acpi.h
View File

@ -1623,6 +1623,9 @@ void generate_cpu_entries(const struct device *device);
unsigned long acpi_write_dbg2_pci_uart(acpi_rsdp_t *rsdp, unsigned long current,
const struct device *dev, uint8_t access_size);
unsigned long acpi_pl011_write_dbg2_uart(acpi_rsdp_t *rsdp, unsigned long current,
uint64_t base, const char *name);
void acpi_create_dmar(acpi_dmar_t *dmar, enum dmar_flags flags,
unsigned long (*acpi_fill_dmar)(unsigned long));
unsigned long acpi_create_dmar_drhd(unsigned long current, u8 flags,