x86: Move common PCH code into a common place

The SATA indexed register write functions are common to several Intel PCHs.
Move this into a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

6 files changed, 99 insertions, 84 deletions

diff --git a/arch/x86/cpu/intel_common/Makefile b/arch/x86/cpu/intel_common/Makefile
index 1918ca30a8..74b097a6c1 100644
--- a/arch/x86/cpu/intel_common/Makefile
+++ b/arch/x86/cpu/intel_common/Makefile
@@ -11,4 +11,5 @@ obj-$(CONFIG_HAVE_MRC) += me_status.o
 ifndef CONFIG_TARGET_EFI
 obj-y += microcode.o
 endif
+obj-y += pch.o
 obj-$(CONFIG_HAVE_MRC) += report_platform.o
diff --git a/arch/x86/cpu/intel_common/pch.c b/arch/x86/cpu/intel_common/pch.c
new file mode 100644
index 0000000000..1f05b44586
--- /dev/null
+++ b/arch/x86/cpu/intel_common/pch.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/pch_common.h>
+
+u32 pch_common_sir_read(struct udevice *dev, int idx)
+{
+	u32 data;
+
+	dm_pci_write_config32(dev, SATA_SIRI, idx);
+	dm_pci_read_config32(dev, SATA_SIRD, &data);
+
+	return data;
+}
+
+void pch_common_sir_write(struct udevice *dev, int idx, u32 value)
+{
+	dm_pci_write_config32(dev, SATA_SIRI, idx);
+	dm_pci_write_config32(dev, SATA_SIRD, value);
+}
diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c
index bb720ba938..0f9390517f 100644
--- a/arch/x86/cpu/ivybridge/cpu.c
+++ b/arch/x86/cpu/ivybridge/cpu.c
@@ -21,6 +21,7 @@
 #include <asm/intel_regs.h>
 #include <asm/io.h>
 #include <asm/lapic.h>
+#include <asm/lpc_common.h>
 #include <asm/microcode.h>
 #include <asm/msr.h>
 #include <asm/mtrr.h>
diff --git a/arch/x86/cpu/ivybridge/sata.c b/arch/x86/cpu/ivybridge/sata.c
index da6455b3bd..c3d1057c29 100644
--- a/arch/x86/cpu/ivybridge/sata.c
+++ b/arch/x86/cpu/ivybridge/sata.c
@@ -9,28 +9,13 @@
 #include <dm.h>
 #include <fdtdec.h>
 #include <asm/io.h>
+#include <asm/pch_common.h>
 #include <asm/pci.h>
 #include <asm/arch/pch.h>
 #include <asm/arch/bd82x6x.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static inline u32 sir_read(struct udevice *dev, int idx)
-{
-	u32 data;
-
-	dm_pci_write_config32(dev, SATA_SIRI, idx);
-	dm_pci_read_config32(dev, SATA_SIRD, &data);
-
-	return data;
-}
-
-static inline void sir_write(struct udevice *dev, int idx, u32 value)
-{
-	dm_pci_write_config32(dev, SATA_SIRI, idx);
-	dm_pci_write_config32(dev, SATA_SIRD, value);
-}
-
 static void common_sata_init(struct udevice *dev, unsigned int port_map)
 {
 	u32 reg32;
@@ -177,27 +162,27 @@ static void bd82x6x_sata_init(struct udevice *dev, struct udevice *pch)
 		pch_iobp_update(pch, SATA_IOBP_SP1G3IR, 0, port_tx);
 
 	/* Additional Programming Requirements */
-	sir_write(dev, 0x04, 0x00001600);
-	sir_write(dev, 0x28, 0xa0000033);
-	reg32 = sir_read(dev, 0x54);
+	pch_common_sir_write(dev, 0x04, 0x00001600);
+	pch_common_sir_write(dev, 0x28, 0xa0000033);
+	reg32 = pch_common_sir_read(dev, 0x54);
 	reg32 &= 0xff000000;
 	reg32 |= 0x5555aa;
-	sir_write(dev, 0x54, reg32);
-	sir_write(dev, 0x64, 0xcccc8484);
-	reg32 = sir_read(dev, 0x68);
+	pch_common_sir_write(dev, 0x54, reg32);
+	pch_common_sir_write(dev, 0x64, 0xcccc8484);
+	reg32 = pch_common_sir_read(dev, 0x68);
 	reg32 &= 0xffff0000;
 	reg32 |= 0xcccc;
-	sir_write(dev, 0x68, reg32);
-	reg32 = sir_read(dev, 0x78);
+	pch_common_sir_write(dev, 0x68, reg32);
+	reg32 = pch_common_sir_read(dev, 0x78);
 	reg32 &= 0x0000ffff;
 	reg32 |= 0x88880000;
-	sir_write(dev, 0x78, reg32);
-	sir_write(dev, 0x84, 0x001c7000);
-	sir_write(dev, 0x88, 0x88338822);
-	sir_write(dev, 0xa0, 0x001c7000);
-	sir_write(dev, 0xc4, 0x0c0c0c0c);
-	sir_write(dev, 0xc8, 0x0c0c0c0c);
-	sir_write(dev, 0xd4, 0x10000000);
+	pch_common_sir_write(dev, 0x78, reg32);
+	pch_common_sir_write(dev, 0x84, 0x001c7000);
+	pch_common_sir_write(dev, 0x88, 0x88338822);
+	pch_common_sir_write(dev, 0xa0, 0x001c7000);
+	pch_common_sir_write(dev, 0xc4, 0x0c0c0c0c);
+	pch_common_sir_write(dev, 0xc8, 0x0c0c0c0c);
+	pch_common_sir_write(dev, 0xd4, 0x10000000);
 
 	pch_iobp_update(pch, 0xea004001, 0x3fffffff, 0xc0000000);
 	pch_iobp_update(pch, 0xea00408a, 0xfffffcff, 0x00000100);
diff --git a/arch/x86/include/asm/arch-ivybridge/pch.h b/arch/x86/include/asm/arch-ivybridge/pch.h
index e72ff2afc9..4725250d91 100644
--- a/arch/x86/include/asm/arch-ivybridge/pch.h
+++ b/arch/x86/include/asm/arch-ivybridge/pch.h
@@ -69,8 +69,6 @@
 #define RTC_POWER_FAILED	(1 << 1)
 #define SLEEP_AFTER_POWER_FAIL	(1 << 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 */
@@ -99,60 +97,11 @@
 #define GPIO_CNTL		0x4C /* LPC GPIO Control Register */
 #define GPIO_ROUT		0xb8
 
-#define LPC_IO_DEC		0x80 /* IO Decode Ranges Register */
-#define  COMB_DEC_RANGE		(1 << 4)  /* 0x2f8-0x2ff (COM2) */
-#define  COMA_DEC_RANGE		(0 << 0)  /* 0x3f8-0x3ff (COM1) */
-#define LPC_EN			0x82 /* LPC IF Enables Register */
-#define  CNF2_LPC_EN		(1 << 13) /* 0x4e/0x4f */
-#define  CNF1_LPC_EN		(1 << 12) /* 0x2e/0x2f */
-#define  MC_LPC_EN		(1 << 11) /* 0x62/0x66 */
-#define  KBC_LPC_EN		(1 << 10) /* 0x60/0x64 */
-#define  GAMEH_LPC_EN		(1 << 9)  /* 0x208/0x20f */
-#define  GAMEL_LPC_EN		(1 << 8)  /* 0x200/0x207 */
-#define  FDD_LPC_EN		(1 << 3)  /* LPC_IO_DEC[12] */
-#define  LPT_LPC_EN		(1 << 2)  /* LPC_IO_DEC[9:8] */
-#define  COMB_LPC_EN		(1 << 1)  /* LPC_IO_DEC[6:4] */
-#define  COMA_LPC_EN		(1 << 0)  /* LPC_IO_DEC[3:2] */
-#define LPC_GEN1_DEC		0x84 /* LPC IF Generic Decode Range 1 */
-#define LPC_GEN2_DEC		0x88 /* LPC IF Generic Decode Range 2 */
-#define LPC_GEN3_DEC		0x8c /* LPC IF Generic Decode Range 3 */
-#define LPC_GEN4_DEC		0x90 /* LPC IF Generic Decode Range 4 */
-#define LPC_GENX_DEC(x)		(0x84 + 4 * (x))
-#define  GEN_DEC_RANGE_256B	0xfc0000  /* 256 Bytes */
-#define  GEN_DEC_RANGE_128B	0x7c0000  /* 128 Bytes */
-#define  GEN_DEC_RANGE_64B	0x3c0000  /* 64 Bytes */
-#define  GEN_DEC_RANGE_32B	0x1c0000  /* 32 Bytes */
-#define  GEN_DEC_RANGE_16B	0x0c0000  /* 16 Bytes */
-#define  GEN_DEC_RANGE_8B	0x040000  /* 8 Bytes */
-#define  GEN_DEC_RANGE_4B	0x000000  /* 4 Bytes */
-#define  GEN_DEC_RANGE_EN	(1 << 0)  /* Range Enable */
-
 /* PCI Configuration Space (D31:F1): IDE */
 #define PCH_IDE_DEV		PCI_BDF(0, 0x1f, 1)
 #define PCH_SATA_DEV		PCI_BDF(0, 0x1f, 2)
 #define PCH_SATA2_DEV		PCI_BDF(0, 0x1f, 5)
 
-#define INTR_LN			0x3c
-#define IDE_TIM_PRI		0x40	/* IDE timings, primary */
-#define   IDE_DECODE_ENABLE	(1 << 15)
-#define   IDE_SITRE		(1 << 14)
-#define   IDE_ISP_5_CLOCKS	(0 << 12)
-#define   IDE_ISP_4_CLOCKS	(1 << 12)
-#define   IDE_ISP_3_CLOCKS	(2 << 12)
-#define   IDE_RCT_4_CLOCKS	(0 <<  8)
-#define   IDE_RCT_3_CLOCKS	(1 <<  8)
-#define   IDE_RCT_2_CLOCKS	(2 <<  8)
-#define   IDE_RCT_1_CLOCKS	(3 <<  8)
-#define   IDE_DTE1		(1 <<  7)
-#define   IDE_PPE1		(1 <<  6)
-#define   IDE_IE1		(1 <<  5)
-#define   IDE_TIME1		(1 <<  4)
-#define   IDE_DTE0		(1 <<  3)
-#define   IDE_PPE0		(1 <<  2)
-#define   IDE_IE0		(1 <<  1)
-#define   IDE_TIME0		(1 <<  0)
-#define IDE_TIM_SEC		0x42	/* IDE timings, secondary */
-
 #define IDE_SDMA_CNT		0x48	/* Synchronous DMA control */
 #define   IDE_SSDE1		(1 <<  3)
 #define   IDE_SSDE0		(1 <<  2)
@@ -337,9 +286,7 @@
 		(((d) << DIR_IDR) | ((c) << DIR_ICR) | \
 			((b) << DIR_IBR) | ((a) << DIR_IAR))
 
-#define RC		0x3400	/* 32bit */
 #define HPTC		0x3404	/* 32bit */
-#define GCS		0x3410	/* 32bit */
 #define BUC		0x3414	/* 32bit */
 #define PCH_DISABLE_GBE		(1 << 5)
 #define FD		0x3418	/* 32bit */
diff --git a/arch/x86/include/asm/pch_common.h b/arch/x86/include/asm/pch_common.h
new file mode 100644
index 0000000000..924ccc4db5
--- /dev/null
+++ b/arch/x86/include/asm/pch_common.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef __asm_pch_common_h
+#define __asm_pch_common_h
+
+/* Common Intel SATA registers */
+#define SATA_SIRI		0xa0 /* SATA Indexed Register Index */
+#define SATA_SIRD		0xa4 /* SATA Indexed Register Data */
+#define SATA_SP			0xd0 /* Scratchpad */
+
+#define INTR_LN			0x3c
+#define IDE_TIM_PRI		0x40	/* IDE timings, primary */
+#define   IDE_DECODE_ENABLE	(1 << 15)
+#define   IDE_SITRE		(1 << 14)
+#define   IDE_ISP_5_CLOCKS	(0 << 12)
+#define   IDE_ISP_4_CLOCKS	(1 << 12)
+#define   IDE_ISP_3_CLOCKS	(2 << 12)
+#define   IDE_RCT_4_CLOCKS	(0 <<  8)
+#define   IDE_RCT_3_CLOCKS	(1 <<  8)
+#define   IDE_RCT_2_CLOCKS	(2 <<  8)
+#define   IDE_RCT_1_CLOCKS	(3 <<  8)
+#define   IDE_DTE1		(1 <<  7)
+#define   IDE_PPE1		(1 <<  6)
+#define   IDE_IE1		(1 <<  5)
+#define   IDE_TIME1		(1 <<  4)
+#define   IDE_DTE0		(1 <<  3)
+#define   IDE_PPE0		(1 <<  2)
+#define   IDE_IE0		(1 <<  1)
+#define   IDE_TIME0		(1 <<  0)
+#define IDE_TIM_SEC		0x42	/* IDE timings, secondary */
+
+#define SERIRQ_CNTL		0x64
+
+/**
+ * pch_common_sir_read() - Read from a SATA indexed register
+ *
+ * @dev:	SATA device
+ * @idx:	Register index to read
+ * @return value read from register
+ */
+u32 pch_common_sir_read(struct udevice *dev, int idx);
+
+/**
+ * pch_common_sir_write() - Write to a SATA indexed register
+ *
+ * @dev:	SATA device
+ * @idx:	Register index to write
+ * @value:	Value to write
+ */
+void pch_common_sir_write(struct udevice *dev, int idx, u32 value);
+
+#endif