[coreboot-gerrit] [S] Change in coreboot[main]: WIP: Add DBG2

[Bao Zheng (Code Review)]

Attention is currently required from: Zheng Bao.

Hello Zheng Bao,

I'd like you to do a code review.
Please visit

https://review.coreboot.org/c/coreboot/+/79174?usp=email

to review the following change.

Change subject: WIP: Add DBG2
......................................................................

WIP: Add DBG2

BUG=b:240426142

Change-Id: I3c97a78d1889549421baf0bc1a2e8f959a0f47e2
Signed-off-by: Zheng Bao 
---
M src/acpi/acpi.c
M src/include/acpi/acpi.h
M src/soc/amd/mendocino/agesa_acpi.c
3 files changed, 13 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/74/79174/1

diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index 17cd24c..239f91c 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -896,6 +896,14 @@
    			    name);
 }

+unsigned long acpi_16550_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,
+				    0x10, ACPI_ACCESS_SIZE_DWORD_ACCESS,
+				    name);
+}
+
 static void acpi_create_facs(void *header)
 {
    acpi_facs_t *facs = header;
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index fe7e5fd..5bba9e8 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -1631,6 +1631,8 @@
    			       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);
+unsigned long acpi_16550_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));
diff --git a/src/soc/amd/mendocino/agesa_acpi.c b/src/soc/amd/mendocino/agesa_acpi.c
index d60a79d..894de44 100644
--- a/src/soc/amd/mendocino/agesa_acpi.c
+++ b/src/soc/amd/mendocino/agesa_acpi.c
@@ -27,5 +27,8 @@
    current += ivrs->header.length;
    acpi_add_table(rsdp, ivrs);

+	/* Add table */
+	current = acpi_16550_write_dbg2_uart(rsdp, current, 0xFED90000, NULL);
+
    return current;
 }