soc/intel/broadwell: Separate PCH in devicetree

Flesh out the PCH configuration into a separate chip. Keep it within the
Broadwell SoC directory for now, to ease moving files around. The boards
were prepared beforehand and the devicetrees require next to no changes.

Tested on out-of-tree Acer Aspire E5-573, still boots.

Change-Id: I28d948f3e6d85e669d12b29516d867c1d1ae9e1a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46700
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/auron/devicetree.cb b/src/mainboard/google/auron/devicetree.cb
index 09593b7..26a5336 100644
--- a/src/mainboard/google/auron/devicetree.cb
+++ b/src/mainboard/google/auron/devicetree.cb
@@ -26,7 +26,7 @@
 		device pci 02.0 on  end # vga controller
 		device pci 03.0 on  end # mini-hd audio
 
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# EC range is 0x800-0x9ff
 			register "gen1_dec" = "0x00fc0801"
 			register "gen2_dec" = "0x00fc0901"
@@ -83,6 +83,6 @@
 			device pci 1f.2 on  end # SATA Controller
 			device pci 1f.3 off end # SMBus
 			device pci 1f.6 on  end # Thermal
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/auron/variants/auron_paine/overridetree.cb b/src/mainboard/google/auron/variants/auron_paine/overridetree.cb
index f5f3eea..8111040 100644
--- a/src/mainboard/google/auron/variants/auron_paine/overridetree.cb
+++ b/src/mainboard/google/auron/variants/auron_paine/overridetree.cb
@@ -8,12 +8,12 @@
 	register "gpu_panel_power_backlight_off_delay" = "2100"	# 210ms
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# DTLE DATA / EDGE values
 			register "sata_port0_gen3_dtle" = "0x5"
 			register "sata_port1_gen3_dtle" = "0x5"
 
 			device pci 1f.2 on  end # SATA Controller
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/auron/variants/auron_yuna/overridetree.cb b/src/mainboard/google/auron/variants/auron_yuna/overridetree.cb
index 5a64648..eb33d43 100644
--- a/src/mainboard/google/auron/variants/auron_yuna/overridetree.cb
+++ b/src/mainboard/google/auron/variants/auron_yuna/overridetree.cb
@@ -8,12 +8,12 @@
 	register "gpu_panel_power_backlight_off_delay" = "2100"	# 210ms
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# DTLE DATA / EDGE values
 			register "sata_port0_gen3_dtle" = "0x7"
 			register "sata_port1_gen3_dtle" = "0x5"
 
 			device pci 1f.2 on  end # SATA Controller
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/auron/variants/buddy/overridetree.cb b/src/mainboard/google/auron/variants/buddy/overridetree.cb
index 5b6ab9f..60fb08c 100644
--- a/src/mainboard/google/auron/variants/buddy/overridetree.cb
+++ b/src/mainboard/google/auron/variants/buddy/overridetree.cb
@@ -10,7 +10,7 @@
 	register "s0ix_enable" = "0"
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			register "sata_devslp_disable" = "0x1"
 
 			register "sio_i2c0_voltage" = "1" # 1.8V
@@ -36,6 +36,6 @@
 			device pci 1c.3 on  end # PCIe Port #4 - WLAN (becomes RP2)
 			device pci 1f.2 on  end # SATA Controller
 			device pci 1f.3 on  end # SMBus
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/auron/variants/gandof/overridetree.cb b/src/mainboard/google/auron/variants/gandof/overridetree.cb
index 924e7d3..c7e2421 100644
--- a/src/mainboard/google/auron/variants/gandof/overridetree.cb
+++ b/src/mainboard/google/auron/variants/gandof/overridetree.cb
@@ -8,12 +8,12 @@
 	register "gpu_panel_power_backlight_off_delay" = "2100"	# 210ms
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# DTLE DATA / EDGE values
 			register "sata_port0_gen3_dtle" = "0x5"
 			register "sata_port1_gen3_dtle" = "0x5"
 
 			device pci 1f.2 on  end # SATA Controller
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/auron/variants/lulu/overridetree.cb b/src/mainboard/google/auron/variants/lulu/overridetree.cb
index f5f3eea..8111040 100644
--- a/src/mainboard/google/auron/variants/lulu/overridetree.cb
+++ b/src/mainboard/google/auron/variants/lulu/overridetree.cb
@@ -8,12 +8,12 @@
 	register "gpu_panel_power_backlight_off_delay" = "2100"	# 210ms
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# DTLE DATA / EDGE values
 			register "sata_port0_gen3_dtle" = "0x5"
 			register "sata_port1_gen3_dtle" = "0x5"
 
 			device pci 1f.2 on  end # SATA Controller
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/auron/variants/samus/overridetree.cb b/src/mainboard/google/auron/variants/samus/overridetree.cb
index 9344575..d8aec0a 100644
--- a/src/mainboard/google/auron/variants/samus/overridetree.cb
+++ b/src/mainboard/google/auron/variants/samus/overridetree.cb
@@ -17,7 +17,7 @@
 	register "s0ix_enable" = "0"
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			register "sata_port0_gen3_tx" = "0x72"
 
 			# Set I2C0 to 1.8V
@@ -37,6 +37,6 @@
 			device pci 1c.2 on  end # PCIe Port #3
 			device pci 1d.0 off end # USB2 EHCI
 			device pci 1f.2 on  end # SATA Controller
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/google/jecht/devicetree.cb b/src/mainboard/google/jecht/devicetree.cb
index e550822..94fd804 100644
--- a/src/mainboard/google/jecht/devicetree.cb
+++ b/src/mainboard/google/jecht/devicetree.cb
@@ -18,7 +18,7 @@
 		device pci 02.0 on end # vga controller
 		device pci 03.0 on end # mini-hd audio
 
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# SuperIO range is 0x700-0x73f
 			register "gen2_dec" = "0x003c0701"
 
@@ -113,6 +113,6 @@
 			device pci 1f.2 on end # SATA Controller
 			device pci 1f.3 on end # SMBus
 			device pci 1f.6 on end # Thermal
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/intel/wtm2/devicetree.cb b/src/mainboard/intel/wtm2/devicetree.cb
index 927a603..29041aa 100644
--- a/src/mainboard/intel/wtm2/devicetree.cb
+++ b/src/mainboard/intel/wtm2/devicetree.cb
@@ -17,7 +17,7 @@
 		device pci 02.0 on  end	# vga controller
 		device pci 03.0 on  end	# mini-hd audio
 
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			register "alt_gp_smi_en" = "0x0000"
 			register "gpe0_en_1" = "0x00000400"
 			register "gpe0_en_2" = "0x00000000"
@@ -55,6 +55,6 @@
 			device pci 1f.2 on  end	# SATA Controller
 			device pci 1f.3 on  end	# SMBus
 			device pci 1f.6 on  end	# Thermal
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/purism/librem_bdw/devicetree.cb b/src/mainboard/purism/librem_bdw/devicetree.cb
index 4f34f7d..0d0fc72 100644
--- a/src/mainboard/purism/librem_bdw/devicetree.cb
+++ b/src/mainboard/purism/librem_bdw/devicetree.cb
@@ -24,7 +24,7 @@
 		device pci 02.0 on  end # vga controller
 		device pci 03.0 on  end # mini-hd audio
 
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# EC host command ranges are in 0x380-0x383 & 0x80-0x8f
 			register "gen1_dec" = "0x00000381"
 			register "gen2_dec" = "0x000c0081"
@@ -57,6 +57,6 @@
 			device pci 1f.2 on  end # SATA Controller
 			device pci 1f.3 on  end # SMBus
 			device pci 1f.6 off end # Thermal
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/purism/librem_bdw/variants/librem13v1/overridetree.cb b/src/mainboard/purism/librem_bdw/variants/librem13v1/overridetree.cb
index 237e697..256077c 100644
--- a/src/mainboard/purism/librem_bdw/variants/librem13v1/overridetree.cb
+++ b/src/mainboard/purism/librem_bdw/variants/librem13v1/overridetree.cb
@@ -1,7 +1,7 @@
 chip soc/intel/broadwell
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# Port 0 is HDD
 			# Port 3 is M.2 NGFF
 			register "sata_port_map" = "0x9"
@@ -11,6 +11,6 @@
 			register "sata_port3_gen3_dtle" = "9"
 
 			device pci 1c.2 on  end # PCIe Port #3 - LAN
-#		end
+		end
 	end
 end
diff --git a/src/mainboard/purism/librem_bdw/variants/librem15v2/overridetree.cb b/src/mainboard/purism/librem_bdw/variants/librem15v2/overridetree.cb
index b9b29cd..d88c19c 100644
--- a/src/mainboard/purism/librem_bdw/variants/librem15v2/overridetree.cb
+++ b/src/mainboard/purism/librem_bdw/variants/librem15v2/overridetree.cb
@@ -1,7 +1,7 @@
 chip soc/intel/broadwell
 
 	device domain 0 on
-#		chip soc/intel/broadwell/pch
+		chip soc/intel/broadwell/pch
 			# Port 0 is HDD
 			# Port 1 is M.2 NGFF
 			register "sata_port_map" = "0x3"
@@ -11,6 +11,6 @@
 			register "sata_port1_gen3_dtle" = "9"
 
 			device pci 1d.0 on  end # USB2 EHCI
-#		end
+		end
 	end
 end
diff --git a/src/soc/intel/broadwell/adsp.c b/src/soc/intel/broadwell/adsp.c
index 220ad6f..06dd38b 100644
--- a/src/soc/intel/broadwell/adsp.c
+++ b/src/soc/intel/broadwell/adsp.c
@@ -14,11 +14,11 @@
 #include <soc/pch.h>
 #include <soc/ramstage.h>
 #include <soc/rcba.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 
 static void adsp_init(struct device *dev)
 {
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	struct resource *bar0, *bar1;
 	u32 tmp32;
 
diff --git a/src/soc/intel/broadwell/chip.h b/src/soc/intel/broadwell/chip.h
index 45d512a..81c9780 100644
--- a/src/soc/intel/broadwell/chip.h
+++ b/src/soc/intel/broadwell/chip.h
@@ -7,70 +7,6 @@
 #include <stdint.h>
 
 struct soc_intel_broadwell_config {
-	/* GPE configuration */
-	uint32_t gpe0_en_1;
-	uint32_t gpe0_en_2;
-	uint32_t gpe0_en_3;
-	uint32_t gpe0_en_4;
-
-	/* GPIO SMI configuration */
-	uint32_t alt_gp_smi_en;
-
-	/* IDE configuration */
-	uint8_t sata_port_map;
-	uint32_t sata_port0_gen3_tx;
-	uint32_t sata_port1_gen3_tx;
-	uint32_t sata_port2_gen3_tx;
-	uint32_t sata_port3_gen3_tx;
-	uint32_t sata_port0_gen3_dtle;
-	uint32_t sata_port1_gen3_dtle;
-	uint32_t sata_port2_gen3_dtle;
-	uint32_t sata_port3_gen3_dtle;
-
-	/*
-	 * SATA DEVSLP Mux
-	 * 0 = port 0 DEVSLP on DEVSLP0/GPIO33
-	 * 1 = port 3 DEVSLP on DEVSLP0/GPIO33
-	 */
-	uint8_t sata_devslp_mux;
-
-	/*
-	 * DEVSLP Disable
-	 * 0: DEVSLP is enabled
-	 * 1: DEVSLP is disabled
-	 */
-	uint8_t sata_devslp_disable;
-
-	/* Generic IO decode ranges */
-	uint32_t gen1_dec;
-	uint32_t gen2_dec;
-	uint32_t gen3_dec;
-	uint32_t gen4_dec;
-
-	/* Enable linear PCIe Root Port function numbers starting at zero */
-	uint8_t pcie_port_coalesce;
-
-	/* Force root port ASPM configuration with port bitmap */
-	uint8_t pcie_port_force_aspm;
-
-	/* Put SerialIO devices into ACPI mode instead of a PCI device */
-	uint8_t sio_acpi_mode;
-
-	/* I2C voltage select: 0=3.3V 1=1.8V */
-	uint8_t sio_i2c0_voltage;
-	uint8_t sio_i2c1_voltage;
-
-	/* Enable ADSP power gating features */
-	uint8_t adsp_d3_pg_enable;
-	uint8_t adsp_sram_pg_enable;
-
-	/*
-	 * Clock Disable Map:
-	 * [21:16] = CLKOUT_PCIE# 5-0
-	 *    [24] = CLKOUT_ITPXDP
-	 */
-	uint32_t icc_clock_disable;
-
 	/*
 	 * Digital Port Hotplug Enable:
 	 *  0x04 = Enabled, 2ms short pulse
@@ -107,9 +43,6 @@
 
 	struct i915_gpu_controller_info gfx;
 
-	/* Enable S0iX support */
-	int s0ix_enable;
-
 	/*
 	 * Minimum voltage for C6/C7 state:
 	 * 0x67 = 1.6V (full swing)
@@ -132,9 +65,8 @@
 	/* Enable slow VR ramp rate */
 	int vr_slow_ramp_rate_enable;
 
-	/* Deep SX enable */
-	int deep_sx_enable_ac;
-	int deep_sx_enable_dc;
+	/* Enable S0iX support */
+	int s0ix_enable;
 
 	/* TCC activation offset */
 	uint32_t tcc_offset;
diff --git a/src/soc/intel/broadwell/include/soc/ramstage.h b/src/soc/intel/broadwell/include/soc/ramstage.h
index 0b6ef0d..5d7eceb 100644
--- a/src/soc/intel/broadwell/include/soc/ramstage.h
+++ b/src/soc/intel/broadwell/include/soc/ramstage.h
@@ -8,7 +8,6 @@
 
 void broadwell_init_pre_device(void *chip_info);
 void broadwell_init_cpus(struct device *dev);
-void broadwell_pch_enable_dev(struct device *dev);
 
 #if CONFIG(HAVE_REFCODE_BLOB)
 void broadwell_run_reference_code(void);
diff --git a/src/soc/intel/broadwell/lpc.c b/src/soc/intel/broadwell/lpc.c
index 8b85a04..2111913 100644
--- a/src/soc/intel/broadwell/lpc.c
+++ b/src/soc/intel/broadwell/lpc.c
@@ -24,7 +24,7 @@
 #include <soc/pm.h>
 #include <soc/ramstage.h>
 #include <soc/rcba.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 #include <acpi/acpigen.h>
 #include <southbridge/intel/common/rtc.h>
 
@@ -130,7 +130,7 @@
 	u16 reg16;
 	const char *state;
 	/* Get the chip configuration */
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	int pwr_on = CONFIG_MAINBOARD_POWER_FAILURE_STATE;
 
 	/* Which state do we want to goto after g3 (power restored)?
@@ -336,7 +336,7 @@
 
 static void pch_init_deep_sx(struct device *dev)
 {
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 
 	if (config->deep_sx_enable_ac) {
 		RCBA32_OR(DEEP_S3_POL, DEEP_S3_EN_AC);
@@ -567,7 +567,7 @@
 static void pch_lpc_add_io_resources(struct device *dev)
 {
 	struct resource *res;
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 
 	/* Add the default claimed IO range for the LPC device. */
 	res = new_resource(dev, 0);
diff --git a/src/soc/intel/broadwell/me.c b/src/soc/intel/broadwell/me.c
index 80ffe2b..40a81d8 100644
--- a/src/soc/intel/broadwell/me.c
+++ b/src/soc/intel/broadwell/me.c
@@ -26,7 +26,7 @@
 #include <soc/pci_devs.h>
 #include <soc/ramstage.h>
 #include <soc/rcba.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 
 #if CONFIG(CHROMEOS)
 #include <vendorcode/google/chromeos/chromeos.h>
@@ -950,7 +950,7 @@
 /* Check whether ME is present and do basic init */
 static void intel_me_init(struct device *dev)
 {
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	me_bios_path path = intel_me_path(dev);
 	me_bios_payload mbp_data;
 	int mbp_ret;
diff --git a/src/soc/intel/broadwell/pch.c b/src/soc/intel/broadwell/pch.c
index 2a27d92..e0c5bb0 100644
--- a/src/soc/intel/broadwell/pch.c
+++ b/src/soc/intel/broadwell/pch.c
@@ -166,10 +166,16 @@
 	}
 }
 
-void broadwell_pch_enable_dev(struct device *dev)
+static void broadwell_pch_enable_dev(struct device *dev)
 {
 	u16 reg16;
 
+	if (dev->path.type != DEVICE_PATH_PCI)
+		return;
+
+	if (dev->ops && dev->ops->enable)
+		return;
+
 	/* These devices need special enable/disable handling */
 	switch (PCI_SLOT(dev->path.pci.devfn)) {
 	case PCH_DEV_SLOT_PCIE:
@@ -195,4 +201,9 @@
 	}
 }
 
+struct chip_operations soc_intel_broadwell_pch_ops = {
+	CHIP_NAME("Intel Broadwell PCH")
+	.enable_dev = &broadwell_pch_enable_dev,
+};
+
 #endif
diff --git a/src/soc/intel/broadwell/pch/chip.h b/src/soc/intel/broadwell/pch/chip.h
new file mode 100644
index 0000000..2164a31
--- /dev/null
+++ b/src/soc/intel/broadwell/pch/chip.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_INTEL_BROADWELL_PCH_CHIP_H_
+#define _SOC_INTEL_BROADWELL_PCH_CHIP_H_
+
+#include <stdint.h>
+
+struct soc_intel_broadwell_pch_config {
+	/* GPE configuration */
+	uint32_t gpe0_en_1;
+	uint32_t gpe0_en_2;
+	uint32_t gpe0_en_3;
+	uint32_t gpe0_en_4;
+
+	/* GPIO SMI configuration */
+	uint32_t alt_gp_smi_en;
+
+	/* IDE configuration */
+	uint8_t sata_port_map;
+	uint32_t sata_port0_gen3_tx;
+	uint32_t sata_port1_gen3_tx;
+	uint32_t sata_port2_gen3_tx;
+	uint32_t sata_port3_gen3_tx;
+	uint32_t sata_port0_gen3_dtle;
+	uint32_t sata_port1_gen3_dtle;
+	uint32_t sata_port2_gen3_dtle;
+	uint32_t sata_port3_gen3_dtle;
+
+	/*
+	 * SATA DEVSLP Mux
+	 * 0 = port 0 DEVSLP on DEVSLP0/GPIO33
+	 * 1 = port 3 DEVSLP on DEVSLP0/GPIO33
+	 */
+	uint8_t sata_devslp_mux;
+
+	/*
+	 * DEVSLP Disable
+	 * 0: DEVSLP is enabled
+	 * 1: DEVSLP is disabled
+	 */
+	uint8_t sata_devslp_disable;
+
+	/* Generic IO decode ranges */
+	uint32_t gen1_dec;
+	uint32_t gen2_dec;
+	uint32_t gen3_dec;
+	uint32_t gen4_dec;
+
+	/* Enable linear PCIe Root Port function numbers starting at zero */
+	uint8_t pcie_port_coalesce;
+
+	/* Force root port ASPM configuration with port bitmap */
+	uint8_t pcie_port_force_aspm;
+
+	/* Put SerialIO devices into ACPI mode instead of a PCI device */
+	uint8_t sio_acpi_mode;
+
+	/* I2C voltage select: 0=3.3V 1=1.8V */
+	uint8_t sio_i2c0_voltage;
+	uint8_t sio_i2c1_voltage;
+
+	/* Enable ADSP power gating features */
+	uint8_t adsp_d3_pg_enable;
+	uint8_t adsp_sram_pg_enable;
+
+	/*
+	 * Clock Disable Map:
+	 * [21:16] = CLKOUT_PCIE# 5-0
+	 *    [24] = CLKOUT_ITPXDP
+	 */
+	uint32_t icc_clock_disable;
+
+	/* Deep SX enable */
+	int deep_sx_enable_ac;
+	int deep_sx_enable_dc;
+};
+
+#endif
diff --git a/src/soc/intel/broadwell/pcie.c b/src/soc/intel/broadwell/pcie.c
index 0d41d42..c98201e 100644
--- a/src/soc/intel/broadwell/pcie.c
+++ b/src/soc/intel/broadwell/pcie.c
@@ -13,7 +13,7 @@
 #include <soc/pch.h>
 #include <soc/pci_devs.h>
 #include <soc/rcba.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 #include <soc/cpu.h>
 #include <delay.h>
 
@@ -121,7 +121,7 @@
 		root_port_config_update_gbe_port();
 
 		pci_update_config8(dev, 0xe2, ~(3 << 4), (3 << 4));
-		config_t *config = config_of(dev);
+		const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 		rpc.coalesce = config->pcie_port_coalesce;
 	}
 
@@ -436,7 +436,7 @@
 
 static void pch_pcie_early(struct device *dev)
 {
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	int do_aspm = 0;
 	int rp = root_port_number(dev);
 
diff --git a/src/soc/intel/broadwell/romstage/pch.c b/src/soc/intel/broadwell/romstage/pch.c
index d68e17e..149dda1 100644
--- a/src/soc/intel/broadwell/romstage/pch.c
+++ b/src/soc/intel/broadwell/romstage/pch.c
@@ -12,7 +12,7 @@
 #include <soc/rcba.h>
 #include <soc/romstage.h>
 #include <soc/smbus.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 
 static void pch_route_interrupts(void)
 {
@@ -52,9 +52,9 @@
 static void pch_enable_lpc(void)
 {
 	/* Lookup device tree in romstage */
-	const config_t *config;
+	const struct device *const dev = pcidev_on_root(0x1f, 0);
 
-	config = config_of_soc();
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 
 	pci_write_config32(PCH_DEV_LPC, LPC_GEN1_DEC, config->gen1_dec);
 	pci_write_config32(PCH_DEV_LPC, LPC_GEN2_DEC, config->gen2_dec);
diff --git a/src/soc/intel/broadwell/sata.c b/src/soc/intel/broadwell/sata.c
index c9168325..b496e53 100644
--- a/src/soc/intel/broadwell/sata.c
+++ b/src/soc/intel/broadwell/sata.c
@@ -11,7 +11,7 @@
 #include <soc/ramstage.h>
 #include <soc/rcba.h>
 #include <soc/sata.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 
 static inline u32 sir_read(struct device *dev, int idx)
 {
@@ -27,7 +27,7 @@
 
 static void sata_init(struct device *dev)
 {
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	u32 reg32;
 	u8 *abar;
 	u16 reg16;
@@ -256,7 +256,7 @@
 static void sata_enable(struct device *dev)
 {
 	/* Get the chip configuration */
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	u16 map = 0x0060;
 
 	map |= (config->sata_port_map ^ 0xf) << 8;
diff --git a/src/soc/intel/broadwell/serialio.c b/src/soc/intel/broadwell/serialio.c
index 766f5dd..d32a27d 100644
--- a/src/soc/intel/broadwell/serialio.c
+++ b/src/soc/intel/broadwell/serialio.c
@@ -14,7 +14,7 @@
 #include <soc/ramstage.h>
 #include <soc/rcba.h>
 #include <soc/serialio.h>
-#include <soc/intel/broadwell/chip.h>
+#include <soc/intel/broadwell/pch/chip.h>
 
 /* Set D3Hot Power State in ACPI mode */
 static void serialio_enable_d3hot(struct resource *res)
@@ -156,7 +156,7 @@
 
 static void serialio_init(struct device *dev)
 {
-	config_t *config = config_of(dev);
+	const struct soc_intel_broadwell_pch_config *config = config_of(dev);
 	struct resource *bar0, *bar1;
 	int sio_index = -1;
 
diff --git a/src/soc/intel/broadwell/systemagent.c b/src/soc/intel/broadwell/systemagent.c
index dc6f546..b9aeb38 100644
--- a/src/soc/intel/broadwell/systemagent.c
+++ b/src/soc/intel/broadwell/systemagent.c
@@ -472,12 +472,6 @@
 		dev->ops = &pci_domain_ops;
 	} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
 		dev->ops = &cpu_bus_ops;
-	} else if (dev->path.type == DEVICE_PATH_PCI) {
-		/* Handle PCH device enable */
-		if (PCI_SLOT(dev->path.pci.devfn) > SA_DEV_SLOT_MINIHD &&
-		    (dev->ops == NULL || dev->ops->enable == NULL)) {
-			broadwell_pch_enable_dev(dev);
-		}
 	}
 }