[coreboot-gerrit] Patch set updated for coreboot: soc/intel/apollolake: Add cbmem_top() implementation
Andrey Petrov (andrey.petrov@intel.com)
gerrit at coreboot.org
Thu Mar 3 00:30:08 CET 2016
Andrey Petrov (andrey.petrov at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13883
-gerrit
commit 843a769f8dcd5b8c02fd66419f4181ac10f7ac4c
Author: Andrey Petrov <andrey.petrov at intel.com>
Date: Wed Mar 2 15:09:27 2016 -0800
soc/intel/apollolake: Add cbmem_top() implementation
On Apollolake CPU memory mapping is similar to previous SoC, and
we place CBMEM right under TSEG.
Change-Id: I606f690449ba98af6e9fc3074d677c7287892164
Signed-off-by: Andrey Petrov <andrey.petrov at intel.com>
---
src/soc/intel/apollolake/Makefile.inc | 3 +++
src/soc/intel/apollolake/memmap.c | 27 +++++++++++++++++++++++++++
src/soc/intel/apollolake/placeholders.c | 5 -----
3 files changed, 30 insertions(+), 5 deletions(-)
diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc
index a95e27c..9bc7fcf 100644
--- a/src/soc/intel/apollolake/Makefile.inc
+++ b/src/soc/intel/apollolake/Makefile.inc
@@ -19,15 +19,18 @@ bootblock-y += uart_early.c
romstage-y += placeholders.c
romstage-$(CONFIG_PLATFORM_USES_FSP2_0) += romstage.c
romstage-y += gpio.c
+romstage-y += memmap.c
romstage-y += mmap_boot.c
romstage-y += uart_early.c
smm-y += placeholders.c
ramstage-y += placeholders.c
ramstage-y += gpio.c
+ramstage-y += memmap.c
ramstage-y += mmap_boot.c
ramstage-y += uart_early.c
+
CPPFLAGS_common += -I$(src)/soc/intel/apollolake/include
endif
diff --git a/src/soc/intel/apollolake/memmap.c b/src/soc/intel/apollolake/memmap.c
new file mode 100644
index 0000000..8cfb073
--- /dev/null
+++ b/src/soc/intel/apollolake/memmap.c
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ * (Written by Andrey Petrov <andrey.petrov at intel.com> for Intel Corp.)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <arch/io.h>
+#include <cbmem.h>
+#include <device/pci.h>
+#include <soc/northbridge.h>
+#include <soc/pci_devs.h>
+
+static uintptr_t smm_region_start(void)
+{
+ return pci_read_config32(NB_DEV_ROOT, TSEG) & 0xfff00000;
+}
+
+void *cbmem_top(void)
+{
+ return (void *)smm_region_start();
+}
diff --git a/src/soc/intel/apollolake/placeholders.c b/src/soc/intel/apollolake/placeholders.c
index 3a818eb..808bd54 100644
--- a/src/soc/intel/apollolake/placeholders.c
+++ b/src/soc/intel/apollolake/placeholders.c
@@ -3,11 +3,6 @@
#include <delay.h>
#include <rules.h>
-void *cbmem_top(void)
-{
- return NULL;
-}
-
void southbridge_smi_set_eos(void)
{
}
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