soc/intel/broadwell: Drop helper functions

Done for consistency with Haswell in order to ease unification.

Change-Id: I445f086cfcb65a6001ced3326fb9f25a4188b888
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55527
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/broadwell/acpi.c

@@ -7,6 +7,7 @@
 #include <cpu/intel/haswell/haswell.h>
 #include <device/pci_ops.h>
 #include <console/console.h>
+#include <device/device.h>
 #include <types.h>
 #include <cpu/x86/msr.h>
 #include <cpu/intel/turbo.h>
@@ -69,8 +70,13 @@ static unsigned long acpi_fill_dmar(unsigned long current)
 	if (emit_igd) {
 		const unsigned long tmp = current;
 
-		current += acpi_create_dmar_rmrr(current, 0,
+		const struct device *sa_dev = pcidev_on_root(0, 0);
-				sa_get_gsm_base(), sa_get_tolud_base() - 1);
+
+		/* Bit 0 is lock bit, not part of address */
+		const u32 tolud = pci_read_config32(sa_dev, TOLUD) & ~1;
+		const u32 bgsm  = pci_read_config32(sa_dev,  BGSM) & ~1;
+
+		current += acpi_create_dmar_rmrr(current, 0, bgsm, tolud - 1);
 		current += acpi_create_dmar_ds_pci(current, 0, 2, 0);
 		acpi_dmar_rmrr_fixup(tmp, current);
 	}

src/soc/intel/broadwell/include/soc/systemagent.h

@@ -135,7 +135,4 @@
 /* System Agent identification */
 u8 systemagent_revision(void);
 
-uintptr_t sa_get_tolud_base(void);
-uintptr_t sa_get_gsm_base(void);
-
 #endif

src/soc/intel/broadwell/northbridge.c

@@ -21,20 +21,6 @@ u8 systemagent_revision(void)
 	return pci_read_config8(sa_dev, PCI_REVISION_ID);
 }
 
-uintptr_t sa_get_tolud_base(void)
-{
-	struct device *sa_dev = pcidev_path_on_root(SA_DEVFN_ROOT);
-	/* Bit 0 is lock bit, not part of address */
-	return pci_read_config32(sa_dev, TOLUD) & ~1;
-}
-
-uintptr_t sa_get_gsm_base(void)
-{
-	struct device *sa_dev = pcidev_path_on_root(SA_DEVFN_ROOT);
-	/* Bit 0 is lock bit, not part of address */
-	return pci_read_config32(sa_dev, BGSM) & ~1;
-}
-
 static int get_pcie_bar(struct device *dev, unsigned int index, u32 *base,
 			u32 *len)
 {