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Diffstat (limited to 'arch/x86/cpu/ivybridge/pch.c')
-rw-r--r--arch/x86/cpu/ivybridge/pch.c123
1 files changed, 0 insertions, 123 deletions
diff --git a/arch/x86/cpu/ivybridge/pch.c b/arch/x86/cpu/ivybridge/pch.c
deleted file mode 100644
index bbab646..0000000
--- a/arch/x86/cpu/ivybridge/pch.c
+++ /dev/null
@@ -1,123 +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(void)
-{
- pci_dev_t dev;
-
- dev = PCH_LPC_DEV;
-
- if (pch_revision_id < 0)
- pch_revision_id = x86_pci_read_config8(dev, PCI_REVISION_ID);
- return pch_revision_id;
-}
-
-int pch_silicon_type(void)
-{
- pci_dev_t dev;
-
- dev = PCH_LPC_DEV;
-
- if (pch_type < 0)
- pch_type = x86_pci_read_config8(dev, PCI_DEVICE_ID + 1);
- return pch_type;
-}
-
-int pch_silicon_supported(int type, int rev)
-{
- int cur_type = pch_silicon_type();
- int cur_rev = pch_silicon_revision();
-
- 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(u32 address, u32 andvalue, u32 orvalue)
-{
- u32 data;
-
- /* Set the address */
- writel(address, RCB_REG(IOBPIRI));
-
- /* READ OPCODE */
- if (pch_silicon_supported(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(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;
-}