summaryrefslogtreecommitdiffstats
path: root/src/soc/intel/broadwell/romstage/pch.c
diff options
context:
space:
mode:
authorDuncan Laurie <dlaurie@chromium.org>2014-04-30 16:36:13 -0700
committerMarc Jones <marc.jones@se-eng.com>2014-10-22 03:36:44 +0200
commitc88c54c667124851eb82c5271536fd0f4ad6616c (patch)
tree1b52b6be3bcca26ba698256f8ad55435b5904d49 /src/soc/intel/broadwell/romstage/pch.c
parentf0aaa29989f4de7258430715d64c6d465fb0c457 (diff)
downloadcoreboot-c88c54c667124851eb82c5271536fd0f4ad6616c.tar.gz
coreboot-c88c54c667124851eb82c5271536fd0f4ad6616c.tar.bz2
coreboot-c88c54c667124851eb82c5271536fd0f4ad6616c.zip
broadwell: add new intel SOC
broadwell: Import files from haswell/lynxpoint into soc/broadwell Reviewed-on: https://chromium-review.googlesource.com/198425 (cherry picked from commit 178400e5709d676dd41e6a75df06faa829e0e3af) broadwell: Unify and clean up license Reviewed-on: https://chromium-review.googlesource.com/198426 (cherry picked from commit 30d3c25a0abc76be68477c39a654b95a5975f55d) broadwell: pch.h: split PM into new header Reviewed-on: https://chromium-review.googlesource.com/198427 (cherry picked from commit 97a8d0b051f476d0edc06301f57326a718df1373) broadwell: pch.h: split RCBA into new header Reviewed-on: https://chromium-review.googlesource.com/198428 (cherry picked from commit fa217361b28fdb8d3a3e85f070dfaf13c0d48135) broadwell: pch.h: split SATA into new header Reviewed-on: https://chromium-review.googlesource.com/198429 (cherry picked from commit bf8795ca92f9f0467e7869c701038abb4529ac71) broadwell: pch.h: split SPI into new header Reviewed-on: https://chromium-review.googlesource.com/198550 (cherry picked from commit 099af14676a2654ca3e24e66d7b9f0b4ab13cd14) broadwell: pch.h: split SerialIO into new header Reviewed-on: https://chromium-review.googlesource.com/198551 (cherry picked from commit 4f3c028686aed78fb07b8792dcf46aebd2268ea6) broadwell: pch.h: split LPC into new header Reviewed-on: https://chromium-review.googlesource.com/198552 (cherry picked from commit 10bad5bbb6739c0277fd5330d26a89d60fd5c102) broadwell: pch.h: split GPIO into new header and clean up Reviewed-on: https://chromium-review.googlesource.com/198553 (cherry picked from commit 9c97532460562215b78e10b011a29e092a07f3e5) broadwell: pch.h: split USB into new headers Reviewed-on: https://chromium-review.googlesource.com/198554 (cherry picked from commit 86ef1a45a2e5f307467b3be48e377569f37b3068) broadwell: Split IOBP into separate files Reviewed-on: https://chromium-review.googlesource.com/198734 (cherry picked from commit f93b8bda71728f1383937ad675d2d5fb5a927600) broadwell: smbus: Extract common code and split header Reviewed-on: https://chromium-review.googlesource.com/198735 (cherry picked from commit 8052030a9d6b22e8a19938fa9b93e90d08f0057d) broadwell: Create iomap.h header with platform base addresses Reviewed-on: https://chromium-review.googlesource.com/198736 (cherry picked from commit b35947d070b28871637dfe2b930a9f2be80958ee) broadwell: Add header for platform PCI devices Reviewed-on: https://chromium-review.googlesource.com/198737 (cherry picked from commit 6ac4e56db6e489bb9eaf91a0c3c543399f691500) broadwell: Split SMM related defines/prototypes to new header Reviewed-on: https://chromium-review.googlesource.com/198738 (cherry picked from commit 2a2595067077cd918bfd48cad79a684b8e1ff0f4) broadwell: cpu.h: Split MSR defines to separate header Reviewed-on: https://chromium-review.googlesource.com/198739 (cherry picked from commit 01148cd2c9edd97cd0c8ef3cfed58bc8c33eb805) broadwell: Create romstage header file Reviewed-on: https://chromium-review.googlesource.com/198740 (cherry picked from commit 31c91e811b9e07e7bcba6b9f8f5720a31322eb21) broadwell: Create ram stage header file Reviewed-on: https://chromium-review.googlesource.com/198741 (cherry picked from commit 93dde85f98d43d4a1886b59004d1bab4924ad621) broadwell: Add reference code data interface Reviewed-on: https://chromium-review.googlesource.com/198743 (cherry picked from commit 9059b8e2308892a48c838c3099404c9cf450df95) broadwell: Clean up ACPI NVS region Reviewed-on: https://chromium-review.googlesource.com/198897 (cherry picked from commit d83cc82c36661556eb1e2e437b7ac51d5b8e4a14) broadwell: Move CTDP ACPI methods to new file Reviewed-on: https://chromium-review.googlesource.com/198898 (cherry picked from commit fc1e711290df304d18c558d697eea8a5e57061b2) broadwell: Split EHCI and XHCI ACPI devices Reviewed-on: https://chromium-review.googlesource.com/198899 (cherry picked from commit 26f437b27e00dbd5c92ea22e76404633a62fb7ca) broadwell: ACPI: Clean up SerialIO ACPI code Reviewed-on: https://chromium-review.googlesource.com/198910 (cherry picked from commit ea3cd39566c1bb2ead463a6253b6204a62545d35) broadwell: ACPI: Remove special handling of LPT-LP chipset Reviewed-on: https://chromium-review.googlesource.com/198911 (cherry picked from commit 2c54df159bf6759c8f866628e83541de6f4e28f6) broadwell: ACPI: Clean up use of base address defines Reviewed-on: https://chromium-review.googlesource.com/198912 (cherry picked from commit 34e4788955bceff01631fd0b4dbf0aa24cf56b75) broadwell: ACPI: Clean up and fix formatting Reviewed-on: https://chromium-review.googlesource.com/198913 (cherry picked from commit bc0f7c6d2f95681eb987bb6ff6baf2d16cc77050) broadwell: Add header for ACPI defines and prototypes Reviewed-on: https://chromium-review.googlesource.com/198914 (cherry picked from commit 9951e7931942d2921f92f6e094b1cc32c190eab9) broadwell: Add reset_system function and header Reviewed-on: https://chromium-review.googlesource.com/198915 (cherry picked from commit 6d1efb94bd39bcd6f7e3e0de2f3299a384b109ef) broadwell: Move PCODE MMIO defines to systemagent.h Reviewed-on: https://chromium-review.googlesource.com/198916 (cherry picked from commit abb5f87e548fbde3a08e14a18714b4e4391c955f) broadwell: Unify chip.h and add chip.c Reviewed-on: https://chromium-review.googlesource.com/198917 (cherry picked from commit a9c2d7ff3afa1e2a10be85ccc72b7db0f2aaafe1) broadwell: Rename HASWELL_BCLK to CPU_BCLK Reviewed-on: https://chromium-review.googlesource.com/198918 (cherry picked from commit 65ac1a07abaf14eb42fec6c5df67d2d3688ad5a1) broadwell: Clean up broadwell/cpu.h Reviewed-on: https://chromium-review.googlesource.com/198919 (cherry picked from commit 17353803babc8ace279e105c012130678226144e) broadwell: Clean up broadwell/systemagent.h Reviewed-on: https://chromium-review.googlesource.com/198920 (cherry picked from commit 49d7a023f3ff04a65d16622aa9b2fa6004b693ae) broadwell: Clean up broadwell/pch.h Reviewed-on: https://chromium-review.googlesource.com/198921 (cherry picked from commit 17da652b4408a91fcfea99dd35fe9f9e1bdcf03b) broadwell: Clean up management engine driver Reviewed-on: https://chromium-review.googlesource.com/198922 (cherry picked from commit 4fce5fbb56dc4f31b77e5ada05463c043ad5be72) broadwell: Add common CPUID and PCI Device ID defines Reviewed-on: https://chromium-review.googlesource.com/198923 (cherry picked from commit c6bf20309f33168ea2cc4634cbda5ec242824ba8) broadwell: Clean up and expand report_platform Reviewed-on: https://chromium-review.googlesource.com/198924 (cherry picked from commit 5082d4824db149e867a2cd8be34c932b03754022) broadwell: Clean up the bootblock code Reviewed-on: https://chromium-review.googlesource.com/198925 (cherry picked from commit ba0206ab76fe0b6834a14dc57f400d139094623c) broadwell: Clean up ramstage device and driver operations Reviewed-on: https://chromium-review.googlesource.com/199180 (cherry picked from commit d8fc9daf129738713a5059286b7ead004f3b7569) broadwell: Clean up XHCI and EHCI ramstage drivers Reviewed-on: https://chromium-review.googlesource.com/199181 (cherry picked from commit d355247333a828a146ce7cf9b92a63da74119c1d) broadwell: Clean up gpio handling code Reviewed-on: https://chromium-review.googlesource.com/199182 (cherry picked from commit d62cef1970fe75f8166315016b3d8415cddcab20) broadwell: Clean up the PCH generic code Reviewed-on: https://chromium-review.googlesource.com/199183 (cherry picked from commit 3b93b3ea79965d5ac831bf9015e49330f157b0ff) broadwell: Move get_top_of_ram() and cbmem_top() to memmap.c Reviewed-on: https://chromium-review.googlesource.com/199184 (cherry picked from commit 68955ba4ff8b49ff466d7badaa934bd143026ba7) broadwell: Clean up pmutil.c Reviewed-on: https://chromium-review.googlesource.com/199185 (cherry picked from commit b6fb672ae879e17422f7449f70c3669055096f84) broadwell: pmutil: Add new acpi_sci_irq() function Reviewed-on: https://chromium-review.googlesource.com/199186 (cherry picked from commit 80ad8bb9bdc75f180e667861fed42a3844226bc5) broadwell: Clean up HDA ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199187 (cherry picked from commit b4962acd706eaa66c1c3ef4d22eba313642fbb2d) broadwell: Clean up cache_as_ram assembly Reviewed-on: https://chromium-review.googlesource.com/199188 (cherry picked from commit 8a457b82610b604ae7f69e2500815ce411c2d02d) broadwell: romstage: Separate stack helper functions Reviewed-on: https://chromium-review.googlesource.com/199189 (cherry picked from commit c220383c90466fc2dbf4b6107679b08ecb4aadad) broadwell: Add function to read WPSR from SPI Reviewed-on: https://chromium-review.googlesource.com/199190 (cherry picked from commit 935404da1157d606b913eff6c2635ae898e9980a) broadwell: Clean up SMBUS code in romstage and ramstage Reviewed-on: https://chromium-review.googlesource.com/199191 (cherry picked from commit 6ae9d93c1a6f14da6429a4e5b01619c9ccaefdaa) broadwell: SPI: Clean up romstage and ramstage code Reviewed-on: https://chromium-review.googlesource.com/199192 (cherry picked from commit 28ffd71a416aee2ab54bc5d782cfeef31d4d30bf) broadwell: Clean up PCIe root port ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199193 (cherry picked from commit 781f3a1b72c72f0bb05f5524edec471ad13ec90e) broadwell: Clean up minihd ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199194 (cherry picked from commit a52d275e41fdcbf9895d07350725609d9be1ff0e) broadwell: Update romstage main to follow baytrail format Reviewed-on: https://chromium-review.googlesource.com/199361 (cherry picked from commit 0678c739af84c871922ffba5594132b25e471ddd) broadwell: Add CPU set_max_freq function for romstage Reviewed-on: https://chromium-review.googlesource.com/199362 (cherry picked from commit 68b0122472af27f38502d42a8a6c80678ddbbba6) broadwell: romstage: Add chipset_power_state implementation Reviewed-on: https://chromium-review.googlesource.com/199363 (cherry picked from commit 761cec3b6bb9bde579c3214f3f1196f65700757c) broadwell: romstage: Convert systemagent init to reg_script Reviewed-on: https://chromium-review.googlesource.com/199364 (cherry picked from commit c2ea2d3a0c7555a353fb9a1d4a63e773ac8961b2) broadwell: romstage: Convert pch init to reg_script Reviewed-on: https://chromium-review.googlesource.com/199365 (cherry picked from commit 4383de5846e97ca5aee6dd210459d8dba0af981c) broadwell: elog: Use chipset_power_state for events Reviewed-on: https://chromium-review.googlesource.com/199366 (cherry picked from commit 0ef5961ebe3a7037d5fbe361fbc70a87ac2edad9) broadwell: Clean up SATA ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199367 (cherry picked from commit ffa5743f74551bd48aa7e5445ce7cd9dc7b07ce8) broadwell: Update ramstage graphics driver to support broadwell Reviewed-on: https://chromium-review.googlesource.com/199368 (cherry picked from commit bb01deb8bbed56f15e1143504e4cf012ecf5a281) broadwell: Update raminit to follow baytrail layout Reviewed-on: https://chromium-review.googlesource.com/199369 (cherry picked from commit 3f25c23dc58f85d2521916cd6edbe9deeeb8d523) broadwell: Update and unify the finalize steps Reviewed-on: https://chromium-review.googlesource.com/199390 (cherry picked from commit ddc4c116b42d38dfdfc45ef4388fbfab32ca48fa) broadwell: Clean up SMM code Reviewed-on: https://chromium-review.googlesource.com/199391 (cherry picked from commit 8295e56c9b643fd4b9267d70b5efd0cf94dd67dd) broadwell: Clean up LPC ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199392 (cherry picked from commit 28326aeaaf304c9262866588d91b79b37d1d9a2e) broadwell: Clean up systemagent ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199393 (cherry picked from commit 749988fff07eab8d2c9ebc731e3ed9e427b3f7b3) broadwell: Move C-state configuration information to acpi.c Reviewed-on: https://chromium-review.googlesource.com/199394 (cherry picked from commit 198a3cd5cbd009be406298cbb53163f075fe9990) broadwell: Clean up CPU ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199395 (cherry picked from commit 8159689bba479bab6fd2e949e3e1c3f817088969) broadwell: Do not reserve SMM relocation region Reviewed-on: https://chromium-review.googlesource.com/199402 (cherry picked from commit e2ab52340e3d3a97a3f8dbdad8fac9f7769d1b4c) broadwell: Add an early ramstage driver Reviewed-on: https://chromium-review.googlesource.com/199403 (cherry picked from commit c7a8c867101b49a7f9f17ec1a8777a8db145f3e3) broadwell: Support for second reference code binary Reviewed-on: https://chromium-review.googlesource.com/199404 (cherry picked from commit abb99b36e97c4f739b23abed6146fea370bbbec2) broadwell: Clean up serialio init code Reviewed-on: https://chromium-review.googlesource.com/199405 (cherry picked from commit e09a1f8520a7b72451a1e2068b200f7c5451f489) broadwell: acpi: Add function to fill out FADT Reviewed-on: https://chromium-review.googlesource.com/199406 (cherry picked from commit 7e58f43e46d4382cf4541057f81fe6be3e4d6e74) broadwell: Update C-state table creation Reviewed-on: https://chromium-review.googlesource.com/199407 (cherry picked from commit 68b1f70e32e1d0c6fc4332dce402ad78334e0063) broadwell: acpi: Clean up acpi table creation code Reviewed-on: https://chromium-review.googlesource.com/199408 (cherry picked from commit 49088b312b159bb17a9330eda6a88d6f324ea146) broadwell: acpi: Add ACPI table create helper functions Reviewed-on: https://chromium-review.googlesource.com/199409 (cherry picked from commit 344c3c511d0341457525ef4d6eb70201404fc62c) broadwell: Add soc/intel/broadwell Makefiles Reviewed-on: https://chromium-review.googlesource.com/199410 (cherry picked from commit ea8f97738eadd3b0b6a642754df7a7d22e547ffc) broadwell: Add Kconfig for broadwell soc Reviewed-on: https://chromium-review.googlesource.com/199411 (cherry picked from commit 8c99038a5c20812497619134c66d45bc4f21c8fe) Squashed 78 commits for broadwell that form a solid code base. Change-Id: I365ca9a45978b5e0cc5237f884e20a44f62a0e63 Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6964 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Diffstat (limited to 'src/soc/intel/broadwell/romstage/pch.c')
-rw-r--r--src/soc/intel/broadwell/romstage/pch.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/romstage/pch.c b/src/soc/intel/broadwell/romstage/pch.c
new file mode 100644
index 000000000000..d064fc041394
--- /dev/null
+++ b/src/soc/intel/broadwell/romstage/pch.c
@@ -0,0 +1,146 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci_def.h>
+#include <reg_script.h>
+#include <broadwell/iomap.h>
+#include <broadwell/lpc.h>
+#include <broadwell/pch.h>
+#include <broadwell/pci_devs.h>
+#include <broadwell/pm.h>
+#include <broadwell/rcba.h>
+#include <broadwell/romstage.h>
+#include <broadwell/smbus.h>
+#include <chip.h>
+
+const struct reg_script pch_early_init_script[] = {
+ /* Setup southbridge BARs */
+ REG_PCI_WRITE32(RCBA, RCBA_BASE_ADDRESS | 1),
+ REG_PCI_WRITE32(PMBASE, ACPI_BASE_ADDRESS | 1),
+ REG_PCI_WRITE8(ACPI_CNTL, ACPI_EN),
+ REG_PCI_WRITE32(GPIO_BASE, GPIO_BASE_ADDRESS | 1),
+ REG_PCI_WRITE8(GPIO_CNTL, GPIO_EN),
+
+ /* Set COM1/COM2 decode range */
+ REG_PCI_WRITE16(LPC_IO_DEC, 0x0010),
+ /* Enable legacy decode ranges */
+ REG_PCI_WRITE16(LPC_EN, CNF1_LPC_EN | CNF2_LPC_EN | GAMEL_LPC_EN |
+ COMA_LPC_EN | KBC_LPC_EN | MC_LPC_EN),
+
+ /* Enable IOAPIC */
+ REG_MMIO_WRITE16(RCBA_BASE_ADDRESS + OIC, 0x0100),
+ /* Read back for posted write */
+ REG_MMIO_READ16(RCBA_BASE_ADDRESS + OIC),
+
+ /* Set HPET address and enable it */
+ REG_MMIO_RMW32(RCBA_BASE_ADDRESS + HPTC, ~3, (1 << 7)),
+ /* Read back for posted write */
+ REG_MMIO_READ32(RCBA_BASE_ADDRESS + HPTC),
+ /* Enable HPET to start counter */
+ REG_MMIO_OR32(HPET_BASE_ADDRESS + 0x10, (1 << 0)),
+
+ /* Disable reset */
+ REG_MMIO_OR32(RCBA_BASE_ADDRESS + GCS, (1 << 5)),
+ /* TCO timer halt */
+ REG_IO_OR16(ACPI_BASE_ADDRESS + TCO1_CNT, TCO_TMR_HLT),
+
+ /* Enable upper 128 bytes of CMOS */
+ REG_MMIO_OR32(RCBA_BASE_ADDRESS + RC, (1 << 2)),
+
+ /* Disable unused device (always) */
+ REG_MMIO_OR32(RCBA_BASE_ADDRESS + FD, PCH_DISABLE_ALWAYS),
+
+ REG_SCRIPT_END
+};
+
+const struct reg_script pch_interrupt_init_script[] = {
+ /*
+ * GFX INTA -> PIRQA (MSI)
+ * D28IP_P1IP PCIE INTA -> PIRQA
+ * D29IP_E1P EHCI INTA -> PIRQD
+ * D20IP_XHCI XHCI INTA -> PIRQC (MSI)
+ * D31IP_SIP SATA INTA -> PIRQF (MSI)
+ * D31IP_SMIP SMBUS INTB -> PIRQG
+ * D31IP_TTIP THRT INTC -> PIRQA
+ * D27IP_ZIP HDA INTA -> PIRQG (MSI)
+ */
+
+ /* Device interrupt pin register (board specific) */
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D31IP,
+ (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) |
+ (INTB << D31IP_SMIP) | (INTA << D31IP_SIP)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D29IP, (INTA << D29IP_E1P)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D28IP,
+ (INTA << D28IP_P1IP) | (INTC << D28IP_P3IP) |
+ (INTB << D28IP_P4IP)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D27IP, (INTA << D27IP_ZIP)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D26IP, (INTA << D26IP_E2P)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D22IP, (NOINT << D22IP_MEI1IP)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D20IP, (INTA << D20IP_XHCI)),
+
+ /* Device interrupt route registers */
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D31IR, /* LPC */
+ DIR_ROUTE(PIRQG, PIRQC, PIRQB, PIRQA)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D29IR, /* EHCI */
+ DIR_ROUTE(PIRQD, PIRQD, PIRQD, PIRQD)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D28IR, /* PCIE */
+ DIR_ROUTE(PIRQA, PIRQB, PIRQC, PIRQD)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D27IR, /* HDA */
+ DIR_ROUTE(PIRQG, PIRQG, PIRQG, PIRQG)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D22IR, /* ME */
+ DIR_ROUTE(PIRQA, PIRQA, PIRQA, PIRQA)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D21IR, /* SIO */
+ DIR_ROUTE(PIRQE, PIRQF, PIRQF, PIRQF)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D20IR, /* XHCI */
+ DIR_ROUTE(PIRQC, PIRQC, PIRQC, PIRQC)),
+ REG_MMIO_WRITE32(RCBA_BASE_ADDRESS + D23IR, /* SDIO */
+ DIR_ROUTE(PIRQH, PIRQH, PIRQH, PIRQH)),
+
+ REG_SCRIPT_END
+};
+
+static void pch_enable_lpc(void)
+{
+ /* Lookup device tree in romstage */
+ const struct device *dev;
+ const config_t *config;
+
+ dev = dev_find_slot(0, PCI_DEVFN(PCH_DEV_SLOT_LPC, 0));
+ if (!dev || !dev->chip_info)
+ return;
+ config = dev->chip_info;
+
+ pci_write_config32(PCH_DEV_LPC, LPC_GEN1_DEC, config->gen1_dec);
+ pci_write_config32(PCH_DEV_LPC, LPC_GEN2_DEC, config->gen2_dec);
+ pci_write_config32(PCH_DEV_LPC, LPC_GEN3_DEC, config->gen3_dec);
+ pci_write_config32(PCH_DEV_LPC, LPC_GEN4_DEC, config->gen4_dec);
+}
+
+void pch_early_init(void)
+{
+ reg_script_run_on_dev(PCH_DEV_LPC, pch_early_init_script);
+ reg_script_run_on_dev(PCH_DEV_LPC, pch_interrupt_init_script);
+
+ pch_enable_lpc();
+
+ enable_smbus();
+}