soc/intel/alderlake: Enable eMMC based on dev enabled

1. Add eMMC device function in pci_devs.h.
2. Enable eMMC device and configuration based on dev enabled.
3. Add SOC acpi name for eMMC.

Change-Id: I44f17420f7a2a1ca0fbb6cfb1886b1617c5a5064
Signed-off-by: Krishna Prasad Bhat <krishna.p.bhat.d@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61129
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c
index 8aa20a8..90e6ab2 100644
--- a/src/soc/intel/alderlake/fsp_params.c
+++ b/src/soc/intel/alderlake/fsp_params.c
@@ -183,6 +183,14 @@
 			DIRECT_IRQ(PCH_DEVFN_UART2),
 		},
 	},
+#if CONFIG(SOC_INTEL_ALDERLAKE_PCH_N)
+	{
+		.slot = PCH_DEV_SLOT_EMMC,
+		.fns = {
+			ANY_PIRQ(PCH_DEVFN_EMMC),
+		},
+	},
+#endif
 	{
 		.slot = PCH_DEV_SLOT_PCIE,
 		.fns = {
@@ -596,6 +604,12 @@
 static void fill_fsps_storage_params(FSP_S_CONFIG *s_cfg,
 		const struct soc_intel_alderlake_config *config)
 {
+#if CONFIG(SOC_INTEL_ALDERLAKE_PCH_N)
+	/* eMMC Configuration */
+	s_cfg->ScsEmmcEnabled = is_devfn_enabled(PCH_DEVFN_EMMC);
+	if (s_cfg->ScsEmmcEnabled)
+		s_cfg->ScsEmmcHs400Enabled = config->emmc_enable_hs400_mode;
+#endif
 	/* Enable Hybrid storage auto detection */
 	s_cfg->HybridStorageMode = config->HybridStorageMode;
 }