x86: ivybridge: Add early init for PCH devices

Many PCH devices are hard-coded to a particular PCI address. Set these
up early in case they are needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

4 files changed, 237 insertions, 1 deletions

diff --git a/arch/x86/include/asm/arch-ivybridge/pch.h b/arch/x86/include/asm/arch-ivybridge/pch.h
index c572f76..290a737 100644
--- a/arch/x86/include/asm/arch-ivybridge/pch.h
+++ b/arch/x86/include/asm/arch-ivybridge/pch.h
@@ -14,9 +14,30 @@
 
 #include <pci.h>
 
+#define DEFAULT_GPIOBASE	0x0480
+#define DEFAULT_PMBASE		0x0500
+
+#define SMBUS_IO_BASE		0x0400
+
+#define PCH_EHCI1_DEV		PCI_BDF(0, 0x1d, 0)
+#define PCH_EHCI2_DEV		PCI_BDF(0, 0x1a, 0)
+#define PCH_XHCI_DEV		PCI_BDF(0, 0x14, 0)
+#define PCH_ME_DEV		PCI_BDF(0, 0x16, 0)
+#define PCH_PCIE_DEV_SLOT	28
+
+#define PCH_DEV			PCI_BDF(0, 0, 0)
+#define PCH_VIDEO_DEV		PCI_BDF(0, 2, 0)
+
 /* PCI Configuration Space (D31:F0): LPC */
 #define PCH_LPC_DEV		PCI_BDF(0, 0x1f, 0)
 
+#define PMBASE			0x40
+#define ACPI_CNTL		0x44
+#define BIOS_CNTL		0xDC
+#define GPIO_BASE		0x48 /* LPC GPIO Base Address Register */
+#define GPIO_CNTL		0x4C /* LPC GPIO Control Register */
+#define GPIO_ROUT		0xb8
+
 #define LPC_IO_DEC		0x80 /* IO Decode Ranges Register */
 #define LPC_EN			0x82 /* LPC IF Enables Register */
 #define  CNF2_LPC_EN		(1 << 13) /* 0x4e/0x4f */
@@ -35,9 +56,35 @@
 #define LPC_GEN4_DEC		0x90 /* LPC IF Generic Decode Range 4 */
 #define LPC_GENX_DEC(x)		(0x84 + 4 * (x))
 
-#define DEFAULT_RCBA		0xfed1c000
+/* PCI Configuration Space (D31:F3): SMBus */
+#define PCH_SMBUS_DEV		PCI_BDF(0, 0x1f, 3)
+#define SMB_BASE		0x20
+#define HOSTC			0x40
+#define SMB_RCV_SLVA		0x09
+
+/* HOSTC bits */
+#define I2C_EN			(1 << 2)
+#define SMB_SMI_EN		(1 << 1)
+#define HST_EN			(1 << 0)
+
+/* SMBus I/O bits. */
+#define SMBHSTSTAT		0x0
+#define SMBHSTCTL		0x2
+#define SMBHSTCMD		0x3
+#define SMBXMITADD		0x4
+#define SMBHSTDAT0		0x5
+#define SMBHSTDAT1		0x6
+#define SMBBLKDAT		0x7
+#define SMBTRNSADD		0x9
+#define SMBSLVDATA		0xa
+#define SMLINK_PIN_CTL		0xe
+#define SMBUS_PIN_CTL		0xf
+
+#define SMBUS_TIMEOUT		(10 * 1000 * 100)
+
 
 /* Root Complex Register Block */
+#define DEFAULT_RCBA		0xfed1c000
 #define RCB_REG(reg)		(DEFAULT_RCBA + (reg))
 
 #define PCH_RCBA_BASE		0xf0
@@ -95,6 +142,78 @@
 #define FD2		0x3428	/* 32bit */
 #define CG		0x341c	/* 32bit */
 
+/* ICH7 PMBASE */
+#define PM1_STS		0x00
+#define   WAK_STS	(1 << 15)
+#define   PCIEXPWAK_STS	(1 << 14)
+#define   PRBTNOR_STS	(1 << 11)
+#define   RTC_STS	(1 << 10)
+#define   PWRBTN_STS	(1 << 8)
+#define   GBL_STS	(1 << 5)
+#define   BM_STS	(1 << 4)
+#define   TMROF_STS	(1 << 0)
+#define PM1_EN		0x02
+#define   PCIEXPWAK_DIS	(1 << 14)
+#define   RTC_EN	(1 << 10)
+#define   PWRBTN_EN	(1 << 8)
+#define   GBL_EN	(1 << 5)
+#define   TMROF_EN	(1 << 0)
+#define PM1_CNT		0x04
+#define   SLP_EN	(1 << 13)
+#define   SLP_TYP	(7 << 10)
+#define    SLP_TYP_S0	0
+#define    SLP_TYP_S1	1
+#define    SLP_TYP_S3	5
+#define    SLP_TYP_S4	6
+#define    SLP_TYP_S5	7
+#define   GBL_RLS	(1 << 2)
+#define   BM_RLD	(1 << 1)
+#define   SCI_EN	(1 << 0)
+#define PM1_TMR		0x08
+#define PROC_CNT	0x10
+#define LV2		0x14
+#define LV3		0x15
+#define LV4		0x16
+#define PM2_CNT		0x50 /* mobile only */
+#define GPE0_STS	0x20
+#define   PME_B0_STS	(1 << 13)
+#define   PME_STS	(1 << 11)
+#define   BATLOW_STS	(1 << 10)
+#define   PCI_EXP_STS	(1 << 9)
+#define   RI_STS	(1 << 8)
+#define   SMB_WAK_STS	(1 << 7)
+#define   TCOSCI_STS	(1 << 6)
+#define   SWGPE_STS	(1 << 2)
+#define   HOT_PLUG_STS	(1 << 1)
+#define GPE0_EN		0x28
+#define   PME_B0_EN	(1 << 13)
+#define   PME_EN	(1 << 11)
+#define   TCOSCI_EN	(1 << 6)
+#define SMI_EN		0x30
+#define   INTEL_USB2_EN	 (1 << 18) /* Intel-Specific USB2 SMI logic */
+#define   LEGACY_USB2_EN (1 << 17) /* Legacy USB2 SMI logic */
+#define   PERIODIC_EN	 (1 << 14) /* SMI on PERIODIC_STS in SMI_STS */
+#define   TCO_EN	 (1 << 13) /* Enable TCO Logic (BIOSWE et al) */
+#define   MCSMI_EN	 (1 << 11) /* Trap microcontroller range access */
+#define   BIOS_RLS	 (1 <<  7) /* asserts SCI on bit set */
+#define   SWSMI_TMR_EN	 (1 <<  6) /* start software smi timer on bit set */
+#define   APMC_EN	 (1 <<  5) /* Writes to APM_CNT cause SMI# */
+#define   SLP_SMI_EN	 (1 <<  4) /* Write SLP_EN in PM1_CNT asserts SMI# */
+#define   LEGACY_USB_EN  (1 <<  3) /* Legacy USB circuit SMI logic */
+#define   BIOS_EN	 (1 <<  2) /* Assert SMI# on setting GBL_RLS bit */
+#define   EOS		 (1 <<  1) /* End of SMI (deassert SMI#) */
+#define   GBL_SMI_EN	 (1 <<  0) /* SMI# generation at all? */
+#define SMI_STS		0x34
+#define ALT_GP_SMI_EN	0x38
+#define ALT_GP_SMI_STS	0x3a
+#define GPE_CNTL	0x42
+#define DEVACT_STS	0x44
+#define SS_CNT		0x50
+#define C3_RES		0x54
+#define TCO1_STS	0x64
+#define   DMISCI_STS	(1 << 9)
+#define TCO2_STS	0x66
+
 /**
  * lpc_early_init() - set up LPC serial ports and other early things
  *
diff --git a/arch/x86/include/asm/arch-ivybridge/sandybridge.h b/arch/x86/include/asm/arch-ivybridge/sandybridge.h
new file mode 100644
index 0000000..a1072f2
--- /dev/null
+++ b/arch/x86/include/asm/arch-ivybridge/sandybridge.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2014 Google, Inc
+ *
+ * From Coreboot file of the same name
+ *
+ * Copyright (C) 2007-2008 coresystems GmbH
+ * Copyright (C) 2011 Google Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _ACH_ASM_SANDYBRIDGE_H
+#define _ACH_ASM_SANDYBRIDGE_H
+
+/* Chipset types */
+#define SANDYBRIDGE_MOBILE	0
+#define SANDYBRIDGE_DESKTOP	1
+#define SANDYBRIDGE_SERVER	2
+
+/* Device ID for SandyBridge and IvyBridge */
+#define BASE_REV_SNB	0x00
+#define BASE_REV_IVB	0x50
+#define BASE_REV_MASK	0x50
+
+/* SandyBridge CPU stepping */
+#define SNB_STEP_D0	(BASE_REV_SNB + 5) /* Also J0 */
+#define SNB_STEP_D1	(BASE_REV_SNB + 6)
+#define SNB_STEP_D2	(BASE_REV_SNB + 7) /* Also J1/Q0 */
+
+/* IvyBridge CPU stepping */
+#define IVB_STEP_A0	(BASE_REV_IVB + 0)
+#define IVB_STEP_B0	(BASE_REV_IVB + 2)
+#define IVB_STEP_C0	(BASE_REV_IVB + 4)
+#define IVB_STEP_K0	(BASE_REV_IVB + 5)
+#define IVB_STEP_D0	(BASE_REV_IVB + 6)
+
+/* Intel Enhanced Debug region must be 4MB */
+#define IED_SIZE	0x400000
+
+/* Northbridge BARs */
+#define DEFAULT_MCHBAR		0xfed10000	/* 16 KB */
+#define DEFAULT_DMIBAR		0xfed18000	/* 4 KB */
+#define DEFAULT_EPBAR		0xfed19000	/* 4 KB */
+#define DEFAULT_RCBABASE	0xfed1c000
+/* 4 KB per PCIe device */
+#define DEFAULT_PCIEXBAR	CONFIG_MMCONF_BASE_ADDRESS
+
+/* Device 0:0.0 PCI configuration space (Host Bridge) */
+#define EPBAR		0x40
+#define MCHBAR		0x48
+#define PCIEXBAR	0x60
+#define DMIBAR		0x68
+#define X60BAR		0x60
+
+#define GGC		0x50			/* GMCH Graphics Control */
+
+#define DEVEN		0x54			/* Device Enable */
+#define  DEVEN_PEG60	(1 << 13)
+#define  DEVEN_IGD	(1 << 4)
+#define  DEVEN_PEG10	(1 << 3)
+#define  DEVEN_PEG11	(1 << 2)
+#define  DEVEN_PEG12	(1 << 1)
+#define  DEVEN_HOST	(1 << 0)
+
+#define PAM0		0x80
+#define PAM1		0x81
+#define PAM2		0x82
+#define PAM3		0x83
+#define PAM4		0x84
+#define PAM5		0x85
+#define PAM6		0x86
+
+#define LAC		0x87	/* Legacy Access Control */
+#define SMRAM		0x88	/* System Management RAM Control */
+#define  D_OPEN		(1 << 6)
+#define  D_CLS		(1 << 5)
+#define  D_LCK		(1 << 4)
+#define  G_SMRAME	(1 << 3)
+#define  C_BASE_SEG	((0 << 2) | (1 << 1) | (0 << 0))
+
+#define TOM		0xa0
+#define TOUUD		0xa8	/* Top of Upper Usable DRAM */
+#define TSEG		0xb8	/* TSEG base */
+#define TOLUD		0xbc	/* Top of Low Used Memory */
+
+#define SKPAD		0xdc	/* Scratchpad Data */
+
+/* Device 0:1.0 PCI configuration space (PCI Express) */
+#define BCTRL1		0x3e	/* 16bit */
+
+/* Device 0:2.0 PCI configuration space (Graphics Device) */
+
+#define MSAC		0x62	/* Multi Size Aperture Control */
+#define SWSCI		0xe8	/* SWSCI  enable */
+#define ASLS		0xfc	/* OpRegion Base */
+
+/*
+ * MCHBAR
+ */
+#define MCHBAR_REG(reg)		(DEFAULT_RCBA + (reg))
+
+#define SSKPD		0x5d14	/* 16bit (scratchpad) */
+#define BIOS_RESET_CPL	0x5da8	/* 8bit */
+
+void sandybridge_early_init(int chipset_type);
+
+#endif
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index d32987b..ff9574c 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -10,6 +10,13 @@
 
 #ifndef __ASSEMBLY__
 
+enum pei_boot_mode_t {
+	PEI_BOOT_NONE = 0,
+	PEI_BOOT_SOFT_RESET,
+	PEI_BOOT_RESUME,
+
+};
+
 /* Architecture-specific global data */
 struct arch_global_data {
 	struct global_data *gd_addr;		/* Location of Global Data */
@@ -25,6 +32,7 @@ struct arch_global_data {
 	void *new_fdt;			/* Relocated FDT */
 	uint32_t bist;			/* Built-in self test value */
 	struct pci_controller *hose;	/* PCI hose for early use */
+	enum pei_boot_mode_t pei_boot_mode;
 };
 
 #endif
diff --git a/arch/x86/include/asm/post.h b/arch/x86/include/asm/post.h
index b203dc9..61dcda1 100644
--- a/arch/x86/include/asm/post.h
+++ b/arch/x86/include/asm/post.h
@@ -25,6 +25,8 @@
 #define POST_START_STACK	0x29
 #define POST_START_DONE		0x2a
 #define POST_CPU_INIT		0x2b
+#define POST_EARLY_INIT		0x2c
+#define POST_CPU_INFO		0x2d
 
 /* Output a post code using al - value must be 0 to 0xff */
 #ifdef __ASSEMBLY__