soc/intel/denverton_ns: enable Denverton to use common SoC SPI code

Use Intel common SoC SPI code for Denverton refactor

Signed-off-by: Jeff Daly <jeffd@silicom-usa.com>
Change-Id: Ic1d57c6b348adb934785b0e2bec4e856f0bf8d77
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61014
Reviewed-by: Mariusz Szafrański <mariuszx.szafranski@intel.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/common/block/spi/spi.c

@@ -197,6 +197,7 @@ static const unsigned short pci_device_ids[] = {
 	PCI_DID_INTEL_ADP_M_N_SPI1,
 	PCI_DID_INTEL_ADP_M_SPI2,
 	PCI_DID_INTEL_SPR_HWSEQ_SPI,
+	PCI_DID_INTEL_DNV_SPI,
 	0
 };
 

src/soc/intel/denverton_ns/Kconfig

@@ -34,6 +34,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_ACPI
 	select SOC_INTEL_COMMON_BLOCK_PMC
 	select ACPI_INTEL_HARDWARE_SLEEP_VALUES
+	select SOC_INTEL_COMMON_BLOCK_SPI
 	select SOC_INTEL_COMMON_BLOCK_FAST_SPI
 	select SOC_INTEL_COMMON_BLOCK_GPIO
 	select SOC_INTEL_COMMON_BLOCK_PCR

src/soc/intel/denverton_ns/spi.c

@@ -1,10 +1,14 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#include <intelblocks/fast_spi.h>
-#include <spi-generic.h>
+#include <intelblocks/spi.h>
+#include <soc/pci_devs.h>
 
-const struct spi_ctrlr_buses spi_ctrlr_bus_map[] = {
-	{ .ctrlr = &fast_spi_flash_ctrlr, .bus_start = 0, .bus_end = 0 },
-};
+int spi_soc_devfn_to_bus(unsigned int devfn)
+{
+	/* Denverton doesn't have GSPI controllers, only Fast SPI */
 
-const size_t spi_ctrlr_bus_map_count = ARRAY_SIZE(spi_ctrlr_bus_map);
+	if (devfn == PCH_DEVFN_SPI)
+		return 0;
+	else
+		return -1;
+}