[U-Boot] [PATCH 50/57] x86: ivybridge: Move code from pch.c to bd82x6x.c
Simon Glass
sjg at chromium.org
Tue Dec 8 04:39:09 CET 2015
This code relates to the PCH, so we should move it into the same file.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
arch/x86/cpu/ivybridge/Makefile | 1 -
arch/x86/cpu/ivybridge/bd82x6x.c | 129 ++++++++++++++++++++++++++++++
arch/x86/cpu/ivybridge/pch.c | 126 -----------------------------
arch/x86/include/asm/arch-ivybridge/pch.h | 18 -----
4 files changed, 129 insertions(+), 145 deletions(-)
delete mode 100644 arch/x86/cpu/ivybridge/pch.c
diff --git a/arch/x86/cpu/ivybridge/Makefile b/arch/x86/cpu/ivybridge/Makefile
index 259a5df..7007d5f 100644
--- a/arch/x86/cpu/ivybridge/Makefile
+++ b/arch/x86/cpu/ivybridge/Makefile
@@ -14,7 +14,6 @@ obj-y += me_status.o
obj-y += model_206ax.o
obj-y += microcode_intel.o
obj-y += northbridge.o
-obj-y += pch.o
obj-y += report_platform.o
obj-y += sata.o
obj-y += sdram.o
diff --git a/arch/x86/cpu/ivybridge/bd82x6x.c b/arch/x86/cpu/ivybridge/bd82x6x.c
index 94c41ef..ff6d485 100644
--- a/arch/x86/cpu/ivybridge/bd82x6x.c
+++ b/arch/x86/cpu/ivybridge/bd82x6x.c
@@ -10,6 +10,7 @@
#include <fdtdec.h>
#include <malloc.h>
#include <pch.h>
+#include <asm/io.h>
#include <asm/lapic.h>
#include <asm/pci.h>
#include <asm/arch/bd82x6x.h>
@@ -17,6 +18,134 @@
#include <asm/arch/pch.h>
#include <asm/arch/sandybridge.h>
+static int pch_revision_id = -1;
+static int pch_type = -1;
+
+/**
+ * pch_silicon_revision() - Read silicon revision ID from the PCH
+ *
+ * @dev: PCH device
+ * @return silicon revision ID
+ */
+static int pch_silicon_revision(struct udevice *dev)
+{
+ u8 val;
+
+ if (pch_revision_id < 0) {
+ dm_pci_read_config8(dev, PCI_REVISION_ID, &val);
+ pch_revision_id = val;
+ }
+
+ return pch_revision_id;
+}
+
+int pch_silicon_type(struct udevice *dev)
+{
+ u8 val;
+
+ if (pch_type < 0) {
+ dm_pci_read_config8(dev, PCI_DEVICE_ID + 1, &val);
+ pch_type = val;
+ }
+
+ return pch_type;
+}
+
+/**
+ * pch_silicon_supported() - Check if a certain revision is supported
+ *
+ * @dev: PCH device
+ * @type: PCH type
+ * @rev: Minimum required resion
+ * @return 0 if not supported, 1 if supported
+ */
+static int pch_silicon_supported(struct udevice *dev, int type, int rev)
+{
+ int cur_type = pch_silicon_type(dev);
+ int cur_rev = pch_silicon_revision(dev);
+
+ switch (type) {
+ case PCH_TYPE_CPT:
+ /* CougarPoint minimum revision */
+ if (cur_type == PCH_TYPE_CPT && cur_rev >= rev)
+ return 1;
+ /* PantherPoint any revision */
+ if (cur_type == PCH_TYPE_PPT)
+ return 1;
+ break;
+
+ case PCH_TYPE_PPT:
+ /* PantherPoint minimum revision */
+ if (cur_type == PCH_TYPE_PPT && cur_rev >= rev)
+ return 1;
+ break;
+ }
+
+ return 0;
+}
+
+#define IOBP_RETRY 1000
+static inline int iobp_poll(void)
+{
+ unsigned try = IOBP_RETRY;
+ u32 data;
+
+ while (try--) {
+ data = readl(RCB_REG(IOBPS));
+ if ((data & 1) == 0)
+ return 1;
+ udelay(10);
+ }
+
+ printf("IOBP timeout\n");
+ return 0;
+}
+
+void pch_iobp_update(struct udevice *dev, u32 address, u32 andvalue,
+ u32 orvalue)
+{
+ u32 data;
+
+ /* Set the address */
+ writel(address, RCB_REG(IOBPIRI));
+
+ /* READ OPCODE */
+ if (pch_silicon_supported(dev, PCH_TYPE_CPT, PCH_STEP_B0))
+ writel(IOBPS_RW_BX, RCB_REG(IOBPS));
+ else
+ writel(IOBPS_READ_AX, RCB_REG(IOBPS));
+ if (!iobp_poll())
+ return;
+
+ /* Read IOBP data */
+ data = readl(RCB_REG(IOBPD));
+ if (!iobp_poll())
+ return;
+
+ /* Check for successful transaction */
+ if ((readl(RCB_REG(IOBPS)) & 0x6) != 0) {
+ printf("IOBP read 0x%08x failed\n", address);
+ return;
+ }
+
+ /* Update the data */
+ data &= andvalue;
+ data |= orvalue;
+
+ /* WRITE OPCODE */
+ if (pch_silicon_supported(dev, PCH_TYPE_CPT, PCH_STEP_B0))
+ writel(IOBPS_RW_BX, RCB_REG(IOBPS));
+ else
+ writel(IOBPS_WRITE_AX, RCB_REG(IOBPS));
+ if (!iobp_poll())
+ return;
+
+ /* Write IOBP data */
+ writel(data, RCB_REG(IOBPD));
+ if (!iobp_poll())
+ return;
+}
+
static int bd82x6x_probe(struct udevice *dev)
{
const void *blob = gd->fdt_blob;
diff --git a/arch/x86/cpu/ivybridge/pch.c b/arch/x86/cpu/ivybridge/pch.c
deleted file mode 100644
index c7ce408..0000000
--- a/arch/x86/cpu/ivybridge/pch.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * From Coreboot
- * Copyright (C) 2008-2009 coresystems GmbH
- * Copyright (C) 2012 The Chromium OS Authors.
- *
- * SPDX-License-Identifier: GPL-2.0
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/pci.h>
-#include <asm/arch/pch.h>
-
-static int pch_revision_id = -1;
-static int pch_type = -1;
-
-int pch_silicon_revision(struct udevice *dev)
-{
- u8 val;
-
- if (pch_revision_id < 0) {
- dm_pci_read_config8(dev, PCI_REVISION_ID, &val);
- pch_revision_id = val;
- }
-
- return pch_revision_id;
-}
-
-int pch_silicon_type(struct udevice *dev)
-{
- u8 val;
-
- if (pch_type < 0) {
- dm_pci_read_config8(dev, PCI_DEVICE_ID + 1, &val);
- pch_type = val;
- }
-
- return pch_type;
-}
-
-int pch_silicon_supported(struct udevice *dev, int type, int rev)
-{
- int cur_type = pch_silicon_type(dev);
- int cur_rev = pch_silicon_revision(dev);
-
- switch (type) {
- case PCH_TYPE_CPT:
- /* CougarPoint minimum revision */
- if (cur_type == PCH_TYPE_CPT && cur_rev >= rev)
- return 1;
- /* PantherPoint any revision */
- if (cur_type == PCH_TYPE_PPT)
- return 1;
- break;
-
- case PCH_TYPE_PPT:
- /* PantherPoint minimum revision */
- if (cur_type == PCH_TYPE_PPT && cur_rev >= rev)
- return 1;
- break;
- }
-
- return 0;
-}
-
-#define IOBP_RETRY 1000
-static inline int iobp_poll(void)
-{
- unsigned try = IOBP_RETRY;
- u32 data;
-
- while (try--) {
- data = readl(RCB_REG(IOBPS));
- if ((data & 1) == 0)
- return 1;
- udelay(10);
- }
-
- printf("IOBP timeout\n");
- return 0;
-}
-
-void pch_iobp_update(struct udevice *dev, u32 address, u32 andvalue,
- u32 orvalue)
-{
- u32 data;
-
- /* Set the address */
- writel(address, RCB_REG(IOBPIRI));
-
- /* READ OPCODE */
- if (pch_silicon_supported(dev, PCH_TYPE_CPT, PCH_STEP_B0))
- writel(IOBPS_RW_BX, RCB_REG(IOBPS));
- else
- writel(IOBPS_READ_AX, RCB_REG(IOBPS));
- if (!iobp_poll())
- return;
-
- /* Read IOBP data */
- data = readl(RCB_REG(IOBPD));
- if (!iobp_poll())
- return;
-
- /* Check for successful transaction */
- if ((readl(RCB_REG(IOBPS)) & 0x6) != 0) {
- printf("IOBP read 0x%08x failed\n", address);
- return;
- }
-
- /* Update the data */
- data &= andvalue;
- data |= orvalue;
-
- /* WRITE OPCODE */
- if (pch_silicon_supported(dev, PCH_TYPE_CPT, PCH_STEP_B0))
- writel(IOBPS_RW_BX, RCB_REG(IOBPS));
- else
- writel(IOBPS_WRITE_AX, RCB_REG(IOBPS));
- if (!iobp_poll())
- return;
-
- /* Write IOBP data */
- writel(data, RCB_REG(IOBPD));
- if (!iobp_poll())
- return;
-}
diff --git a/arch/x86/include/asm/arch-ivybridge/pch.h b/arch/x86/include/asm/arch-ivybridge/pch.h
index 810f55b..ae8840f 100644
--- a/arch/x86/include/asm/arch-ivybridge/pch.h
+++ b/arch/x86/include/asm/arch-ivybridge/pch.h
@@ -456,14 +456,6 @@
#define TCO2_STS 0x66
/**
- * pch_silicon_revision() - Read silicon revision ID from the PCH
- *
- * @dev: PCH device
- * @return silicon revision ID
- */
-int pch_silicon_revision(struct udevice *dev);
-
-/**
* pch_silicon_revision() - Read silicon device ID from the PCH
*
* @dev: PCH device
@@ -472,16 +464,6 @@ int pch_silicon_revision(struct udevice *dev);
int pch_silicon_type(struct udevice *dev);
/**
- * pch_silicon_supported() - Check if a certain revision is supported
- *
- * @dev: PCH device
- * @type: PCH type
- * @rev: Minimum required resion
- * @return 0 if not supported, 1 if supported
- */
-int pch_silicon_supported(struct udevice *dev, int type, int rev);
-
-/**
* pch_pch_iobp_update() - Update a pch register
*
* @dev: PCH device
--
2.6.0.rc2.230.g3dd15c0
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