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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-10-03 14:55:08 +0300
committerBin Meng <bmeng.cn@gmail.com>2017-10-07 15:07:59 +0800
commit256df1e1c6664e94926affe9318faa8258c18582 (patch)
tree1ec829c1c23354a299c71f90e152f32e88702f36 /board/intel/edison
parent39665beed6f741fd8ae6ebf23d07fbd546a0d55e (diff)
x86: edison: Bring minimal ACPI support to the board
This board is based on Intel Tangier SoC (Intel Merrifield platform) and may utilize ACPI powerfulness. Bring minimum support by appending initial DSDT table for it. Note, the addresses for generated tables are carefully chosen to avoid any conflicts with existing shadowed BIOS data. The user have somewhat like ~31 kB available for compiled ACPI tables that ought to be enough. Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'board/intel/edison')
-rw-r--r--board/intel/edison/.gitignore3
-rw-r--r--board/intel/edison/Kconfig6
-rw-r--r--board/intel/edison/Makefile1
-rw-r--r--board/intel/edison/dsdt.asl13
4 files changed, 23 insertions, 0 deletions
diff --git a/board/intel/edison/.gitignore b/board/intel/edison/.gitignore
new file mode 100644
index 0000000000..6eb8a5481a
--- /dev/null
+++ b/board/intel/edison/.gitignore
@@ -0,0 +1,3 @@
+dsdt.aml
+dsdt.asl.tmp
+dsdt.c
diff --git a/board/intel/edison/Kconfig b/board/intel/edison/Kconfig
index 4ff9d5adec..ef9b14aa2b 100644
--- a/board/intel/edison/Kconfig
+++ b/board/intel/edison/Kconfig
@@ -15,6 +15,12 @@ config SYS_CONFIG_NAME
config SYS_TEXT_BASE
default 0x01101000
+config ROM_TABLE_ADDR
+ default 0x0e4500
+
+config ROM_TABLE_SIZE
+ default 0x007b00
+
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
select X86_LOAD_FROM_32_BIT
diff --git a/board/intel/edison/Makefile b/board/intel/edison/Makefile
index dde159435b..eed8d65eb6 100644
--- a/board/intel/edison/Makefile
+++ b/board/intel/edison/Makefile
@@ -5,3 +5,4 @@
#
obj-y += start.o edison.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o
diff --git a/board/intel/edison/dsdt.asl b/board/intel/edison/dsdt.asl
new file mode 100644
index 0000000000..d2e04730c9
--- /dev/null
+++ b/board/intel/edison/dsdt.asl
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2017 Intel Corporation
+ *
+ * Partially based on dsdt.asl for other x86 boards
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+DefinitionBlock("dsdt.aml", "DSDT", 2, "U-BOOT", "U-BOOTBL", 0x00010000)
+{
+ /* platform specific */
+ #include <asm/arch/acpi/platform.asl>
+}