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>

1 files changed, 120 insertions, 1 deletions

diff --git a/arch/x86/include/asm/arch-ivybridge/pch.h b/arch/x86/include/asm/arch-ivybridge/pch.h
index c572f76037..290a737b02 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
  *