diff options
Diffstat (limited to 'resources/coreboot/haswell/patches/0004-haswell-lynxpoint-Add-native-early-ME-init.patch')
| -rw-r--r-- | resources/coreboot/haswell/patches/0004-haswell-lynxpoint-Add-native-early-ME-init.patch | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/resources/coreboot/haswell/patches/0004-haswell-lynxpoint-Add-native-early-ME-init.patch b/resources/coreboot/haswell/patches/0004-haswell-lynxpoint-Add-native-early-ME-init.patch deleted file mode 100644 index 28dbc02a..00000000 --- a/resources/coreboot/haswell/patches/0004-haswell-lynxpoint-Add-native-early-ME-init.patch +++ /dev/null @@ -1,148 +0,0 @@ -From 98142e01fc8ebb3b762974e9e4de75e7f5c073b4 Mon Sep 17 00:00:00 2001 -From: Angel Pons <th3fanbus@gmail.com> -Date: Fri, 6 May 2022 22:18:21 +0200 -Subject: [PATCH 04/26] haswell/lynxpoint: Add native early ME init - -Implement native early ME init for Lynx Point. This is only needed when -MRC.bin is not used. - -Change-Id: If416e2078f139f26b4742c564b70e018725bf003 -Signed-off-by: Angel Pons <th3fanbus@gmail.com> ---- - .../haswell/native_raminit/raminit_native.c | 17 ++++++++++- - src/southbridge/intel/lynxpoint/early_me.c | 30 ++++++++++++++++++- - src/southbridge/intel/lynxpoint/me.h | 7 +++-- - 3 files changed, 50 insertions(+), 4 deletions(-) - -diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.c b/src/northbridge/intel/haswell/native_raminit/raminit_native.c -index 0938e026e3..6a002548c1 100644 ---- a/src/northbridge/intel/haswell/native_raminit/raminit_native.c -+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.c -@@ -1,18 +1,24 @@ - /* SPDX-License-Identifier: GPL-2.0-or-later */ - - #include <console/console.h> -+#include <delay.h> - #include <northbridge/intel/haswell/haswell.h> - #include <northbridge/intel/haswell/raminit.h> -+#include <southbridge/intel/lynxpoint/me.h> - #include <types.h> - - static bool early_init_native(int s3resume) - { - printk(BIOS_DEBUG, "Starting native platform initialisation\n"); - -+ intel_early_me_init(); -+ /** TODO: CPU replacement check must be skipped in warm boots and S3 resumes **/ -+ const bool cpu_replaced = !s3resume && intel_early_me_cpu_replacement_check(); -+ - if (!CONFIG(INTEL_LYNXPOINT_LP)) - dmi_early_init(); - -- return false; -+ return cpu_replaced; - } - - void perform_raminit(const int s3resume) -@@ -25,6 +31,15 @@ void perform_raminit(const int s3resume) - - (void)cpu_replaced; - -+ /** TODO: Move after raminit */ -+ if (intel_early_me_uma_size() > 0) { -+ /** TODO: Update status once raminit is implemented **/ -+ uint8_t me_status = ME_INIT_STATUS_ERROR; -+ intel_early_me_init_done(me_status); -+ } -+ -+ intel_early_me_status(); -+ - /** TODO: Implement the required magic **/ - die("NATIVE RAMINIT: More Magic (tm) required.\n"); - } -diff --git a/src/southbridge/intel/lynxpoint/early_me.c b/src/southbridge/intel/lynxpoint/early_me.c -index 947c570e16..07013c5539 100644 ---- a/src/southbridge/intel/lynxpoint/early_me.c -+++ b/src/southbridge/intel/lynxpoint/early_me.c -@@ -1,11 +1,12 @@ - /* SPDX-License-Identifier: GPL-2.0-only */ - - #include <arch/io.h> -+#include <cf9_reset.h> - #include <device/pci_ops.h> - #include <console/console.h> - #include <delay.h> - #include <halt.h> -- -+#include <timer.h> - #include "me.h" - #include "pch.h" - -@@ -60,6 +61,33 @@ int intel_early_me_init(void) - return 0; - } - -+bool intel_early_me_cpu_replacement_check(void) -+{ -+ printk(BIOS_DEBUG, "ME: Checking whether CPU was replaced... "); -+ -+ struct stopwatch timer; -+ stopwatch_init_msecs_expire(&timer, 50); -+ -+ union me_hfs2 hfs2; -+ do { -+ hfs2.raw = pci_read_config32(PCH_ME_DEV, PCI_ME_HFS2); -+ if (stopwatch_expired(&timer)) { -+ /* Assume CPU was replaced just in case */ -+ printk(BIOS_DEBUG, "timed out, assuming CPU was replaced\n"); -+ return true; -+ } -+ udelay(ME_DELAY); -+ } while (!hfs2.cpu_replaced_valid); -+ -+ if (hfs2.warm_reset_request) { -+ printk(BIOS_DEBUG, "warm reset needed for dynamic fusing\n"); -+ system_reset(); -+ } -+ -+ printk(BIOS_DEBUG, "%sreplaced\n", hfs2.cpu_replaced_sts ? "" : "not "); -+ return hfs2.cpu_replaced_sts; -+} -+ - int intel_early_me_uma_size(void) - { - union me_uma uma = { .raw = pci_read_config32(PCH_ME_DEV, PCI_ME_UMA) }; -diff --git a/src/southbridge/intel/lynxpoint/me.h b/src/southbridge/intel/lynxpoint/me.h -index fe8b0260c4..6990322651 100644 ---- a/src/southbridge/intel/lynxpoint/me.h -+++ b/src/southbridge/intel/lynxpoint/me.h -@@ -177,14 +177,16 @@ union me_did { - union me_hfs2 { - struct __packed { - u32 bist_in_progress: 1; -- u32 reserved1: 2; -+ u32 icc_prog_sts: 2; - u32 invoke_mebx: 1; - u32 cpu_replaced_sts: 1; - u32 mbp_rdy: 1; - u32 mfs_failure: 1; - u32 warm_reset_request: 1; - u32 cpu_replaced_valid: 1; -- u32 reserved2: 4; -+ u32 reserved: 2; -+ u32 fw_upd_ipu: 1; -+ u32 reserved2: 1; - u32 mbp_cleared: 1; - u32 reserved3: 2; - u32 current_state: 8; -@@ -338,6 +340,7 @@ void intel_me_status(union me_hfs hfs, union me_hfs2 hfs2); - - void intel_early_me_status(void); - int intel_early_me_init(void); -+bool intel_early_me_cpu_replacement_check(void); - int intel_early_me_uma_size(void); - int intel_early_me_init_done(u8 status); - --- -2.39.2 - |