soc/intel/xeon_sp: Drop RMRR entry for USB

Drop RMRR entry for XHCI controller since it's not under BIOS control.
There's no USB-PS/2 emulation done in SMM, hence it's not needed.

TEST=intel/archercity CRB

Change-Id: I5afd68371d71a00988fe0f8a6045ec5ce2adc6a1
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81297
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shuo Liu <shuo.liu@intel.com>

2 files changed, 0 insertions, 32 deletions

diff --git a/src/soc/intel/xeon_sp/include/soc/acpi.h b/src/soc/intel/xeon_sp/include/soc/acpi.h
index 882c22638e..e374544962 100644
--- a/src/soc/intel/xeon_sp/include/soc/acpi.h
+++ b/src/soc/intel/xeon_sp/include/soc/acpi.h
@@ -16,11 +16,6 @@ enum acpi_cstate_mode {
 	CSTATES_C1C6
 };
 
-#define MEM_BLK_COUNT      0x140
-typedef struct {
-	uint8_t   buf[32];
-} MEM_BLK;
-
 unsigned long northbridge_write_acpi_tables(const struct device *device,
 	unsigned long current, struct acpi_rsdp *rsdp);
 unsigned long xeonsp_acpi_create_madt_lapics(unsigned long current);
diff --git a/src/soc/intel/xeon_sp/uncore_acpi.c b/src/soc/intel/xeon_sp/uncore_acpi.c
index ef7233583d..86c3a667d2 100644
--- a/src/soc/intel/xeon_sp/uncore_acpi.c
+++ b/src/soc/intel/xeon_sp/uncore_acpi.c
@@ -439,33 +439,6 @@ static unsigned long acpi_create_atsr(unsigned long current)
 
 static unsigned long acpi_create_rmrr(unsigned long current)
 {
-	uint32_t size = ALIGN_UP(MEM_BLK_COUNT * sizeof(MEM_BLK), 0x1000);
-
-	uint32_t *ptr;
-
-	// reserve memory
-	ptr = cbmem_find(CBMEM_ID_STORAGE_DATA);
-	if (!ptr) {
-		ptr = cbmem_add(CBMEM_ID_STORAGE_DATA, size);
-		assert(ptr);
-		memset(ptr, 0, size);
-	}
-
-	unsigned long tmp = current;
-	printk(BIOS_DEBUG, "[Reserved Memory Region] PCI Segment Number: 0x%x, Base Address: 0x%x, "
-		"End Address (limit): 0x%x\n",
-		0, (uint32_t)ptr, (uint32_t)((uint32_t)ptr + size - 1));
-	current += acpi_create_dmar_rmrr(current, 0, (uint32_t)ptr,
-		(uint32_t)((uint32_t)ptr + size - 1));
-
-	printk(BIOS_DEBUG, "    [PCI Endpoint Device] PCI Bus Number: 0x%x, "
-		"PCI Path: 0x%x, 0x%x\n",
-		 XHCI_BUS_NUMBER, PCH_DEV_SLOT_XHCI, XHCI_FUNC_NUM);
-	current += acpi_create_dmar_ds_pci(current, XHCI_BUS_NUMBER,
-		PCH_DEV_SLOT_XHCI, XHCI_FUNC_NUM);
-
-	acpi_dmar_rmrr_fixup(tmp, current);
-
 	return current;
 }