baytrail/rambi: spi, charger, and audio updates

baytrail: combine SPI configuration in romstage
Reviewed-on: https://chromium-review.googlesource.com/185140
(cherry picked from commit 4e7f0e8ae1138e478ae7106d54719cf05e13b402)

baytrail: lock down registers before handoff
Reviewed-on: https://chromium-review.googlesource.com/185200
(cherry picked from commit 82cce4d2b46ccc554b71efa179b5d95756e2ad5e)

baytrail: invoke SMM finalization on handoff
Reviewed-on: https://chromium-review.googlesource.com/185201
(cherry picked from commit 1b50affb1fdda52a5986c9429713930ed517a86a)

rambi: don't invoke SMM finalization
Reviewed-on: https://chromium-review.googlesource.com/185202
(cherry picked from commit 6eff475dae7f4536eb846ccf6d51fce262b8ffef)

rambi: remove handling of APM_CNT_FINALIZE
Reviewed-on: https://chromium-review.googlesource.com/185203
(cherry picked from commit 9fc310d7e2730466cc7fcc84999502a2d4d08bab)

baytrail: don't increment boot count on S3 resume
Reviewed-on: https://chromium-review.googlesource.com/185381
(cherry picked from commit 940a0fa4df1ce335229eb6f80143b93a84ba358c)

rambi: enable HDA device
Reviewed-on: https://chromium-review.googlesource.com/184574
(cherry picked from commit 334f2a5c7c6540e744b6aaf7e1da0b55e1368196)

baytrail: lock down spi controller according to mainboard
Reviewed-on: https://chromium-review.googlesource.com/185631
(cherry picked from commit 696ece68cb6d522c248e800f168e675e4b4a7317)

rambi: implement mainboard_get_spi_config() to lock dow spi controller
Reviewed-on: https://chromium-review.googlesource.com/185632
(cherry picked from commit 1d9ba15858fd421a4fe5a47f7171273128e89524)

baytrail: introduce ssus_disable_internal_pull()
Reviewed-on: https://chromium-review.googlesource.com/185740
(cherry picked from commit 9d6056dd70b27183dab6a4656f4f9612ae870a4d)

rambi: fix write-protect gpio reading at romstage
Reviewed-on: https://chromium-review.googlesource.com/185741
(cherry picked from commit c64627689b1afec59be6fdab323d5492046f0bc7)

baytrail: DPTF: implement charger current limit
Reviewed-on: https://chromium-review.googlesource.com/185759
(cherry picked from commit 287e8936613a7a83281ff692b20383dacf7fcaf6)

rambi: Enable charger participant and define states
Reviewed-on: https://chromium-review.googlesource.com/185760
(cherry picked from commit 2f62a11927ecf10cb2c76a9f5d368d4050404137)

baytrail: increase command wait timeout
Reviewed-on: https://chromium-review.googlesource.com/185874
(cherry picked from commit 962a79ef72169b5d52fc746d1889d3b652fd9bcc)

baytrail: make caching MRC data more robust
Reviewed-on: https://chromium-review.googlesource.com/185875
(cherry picked from commit b5e10ad47b9e4f330caaee4faf69702f24d6bdd8)

baytrail: upgrade MRC wrapper header
Reviewed-on: https://chromium-review.googlesource.com/186391
(cherry picked from commit 8c1a62f1f4261d4f38aacbbb353c9d6218ec2885)

rambi: instruct MRC to use weaker memory ODT settings
Reviewed-on: https://chromium-review.googlesource.com/186420
(cherry picked from commit b9329126ca08d20ce1d8c5db0fcabd39140c7292)

rambi: Move touch wakeup resource GPIO to separate device
Reviewed-on: https://chromium-review.googlesource.com/186932
(cherry picked from commit ba44e2e04f9469c629cb61a911c8cd339f52b0ef)

baytrail: Set some MSRs related to turbo power
Reviewed-on: https://chromium-review.googlesource.com/186933
(cherry picked from commit 76b25df5a31914ae58d47d17af448216011e425c)

baytrail: change power consumption number for ACPI_C3/C6FS.
Reviewed-on: https://chromium-review.googlesource.com/186934
(cherry picked from commit 5192e2464fbb88ea6fc117070240c9733e34f065)

baytrail: Fix use of ConcatenateResTemplate() in ACPI LPE device
Reviewed-on: https://chromium-review.googlesource.com/186928
(cherry picked from commit 8d1ab5de1d43b0790d140f6d0e36a990a5049ece)

baytrail: Disable P-state HW coordination on 4-core SKU
Reviewed-on: https://chromium-review.googlesource.com/187575
(cherry picked from commit c19c0f1d7cb3cb2635766c186ba9598933424a78)

baytrail: DPTF: Enable mainboard-specific _PDL
Reviewed-on: https://chromium-review.googlesource.com/187576
(cherry picked from commit 5412ac5c07bee22017a0ee6d1e2433917b98ea87)

rambi: Apply DPTF tuning parameters
Reviewed-on: https://chromium-review.googlesource.com/187577
(cherry picked from commit 932a5a3803ceaf430ad2934b371ac0886c25efca)

rambi : change lpe_codec_clk_freq to 19.2
Reviewed-on: https://chromium-review.googlesource.com/187594
(cherry picked from commit f64cb1ae77076ad5ec994670f4a83dc561ea80c4)

Squashed 25 commits for baytrail/rambi.

Change-Id: Ibe628ac974d117a09361f7f3131a488911ddd27d
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6933
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

src/soc/intel/baytrail/southcluster.c

@@ -20,8 +20,10 @@
 
 #include <stdint.h>
 #include <arch/io.h>
+#include <bootstate.h>
 #include <cbmem.h>
 #include <console/console.h>
+#include <cpu/x86/smm.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
@@ -35,6 +37,7 @@
 #include <baytrail/pci_devs.h>
 #include <baytrail/pmc.h>
 #include <baytrail/ramstage.h>
+#include <baytrail/spi.h>
 #include "chip.h"
 
 static inline void
@@ -482,3 +485,52 @@ static const struct pci_driver southcluster __pci_driver = {
 	.vendor		= PCI_VENDOR_ID_INTEL,
 	.device		= LPC_DEVID,
 };
+
+int __attribute__((weak)) mainboard_get_spi_config(struct spi_config *cfg)
+{
+	return -1;
+}
+
+static void finalize_chipset(void *unused)
+{
+	const unsigned long bcr = SPI_BASE_ADDRESS + BCR;
+	const unsigned long gcs = RCBA_BASE_ADDRESS + GCS;
+	const unsigned long gen_pmcon2 = PMC_BASE_ADDRESS + GEN_PMCON2;
+	const unsigned long etr = PMC_BASE_ADDRESS + ETR;
+	const unsigned long spi = SPI_BASE_ADDRESS;
+	struct spi_config cfg;
+
+	/* Set the lock enable on the BIOS control register. */
+	write32(bcr, read32(bcr) | BCR_LE);
+
+	/* Set BIOS lock down bit controlling boot block size and swapping. */
+	write32(gcs, read32(gcs) | BILD);
+
+	/* Lock sleep stretching policy and set SMI lock. */
+	write32(gen_pmcon2, read32(gen_pmcon2) | SLPSX_STR_POL_LOCK | SMI_LOCK);
+
+	/*  Set the CF9 lock. */
+	write32(etr, read32(etr) | CF9LOCK);
+
+	if (mainboard_get_spi_config(&cfg) < 0) {
+		printk(BIOS_DEBUG, "No SPI lockdown configuration.\n");
+	} else {
+		write16(spi + PREOP, cfg.preop);
+		write16(spi + OPTYPE, cfg.optype);
+		write32(spi + OPMENU0, cfg.opmenu[0]);
+		write32(spi + OPMENU1, cfg.opmenu[1]);
+		write16(spi + HSFSTS, read16(spi + HSFSTS) | FLOCKDN);
+		write32(spi + UVSCC, cfg.uvscc);
+		write32(spi + LVSCC, cfg.lvscc | VCL);
+	}
+
+	printk(BIOS_DEBUG, "Finalizing SMM.\n");
+	outb(APM_CNT_FINALIZE, APM_CNT);
+}
+
+BOOT_STATE_INIT_ENTRIES(finalize_bscb) = {
+	BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY,
+	                      finalize_chipset, NULL),
+	BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT,
+	                      finalize_chipset, NULL),
+};