From b35cd4d71d9ca761bf1e58465d16006757871ea2 Mon Sep 17 00:00:00 2001
From: Piotr Dymacz <pepe2k@gmail.com>
Date: Wed, 31 Mar 2021 09:44:36 +0200
Subject: [PATCH] imx: introduce 'cortexa7' subtarget

This adds some essential files required by new 'cortexa7' subtarget,
dedicated for Cortex-A7 based NXP i.MX series. For now, the kernel
config-default focuses only on the i.MX 6UL family, as the following
changeset will introduce support for i.MX 6ULL based device. Support
for more platforms (e.g. i.MX 7) might be enabled later, while adding
more devices.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
---
 target/linux/imx/Makefile                     |  2 +-
 .../base-files/etc/board.d/02_network         | 15 ++++++++++++
 .../base-files/lib/upgrade/platform.sh        | 16 +++++++++++++
 target/linux/imx/cortexa7/config-default      | 24 +++++++++++++++++++
 target/linux/imx/cortexa7/target.mk           |  7 ++++++
 target/linux/imx/image/cortexa7.mk            | 10 ++++++++
 6 files changed, 73 insertions(+), 1 deletion(-)
 create mode 100644 target/linux/imx/cortexa7/base-files/etc/board.d/02_network
 create mode 100644 target/linux/imx/cortexa7/base-files/lib/upgrade/platform.sh
 create mode 100644 target/linux/imx/cortexa7/config-default
 create mode 100644 target/linux/imx/cortexa7/target.mk
 create mode 100644 target/linux/imx/image/cortexa7.mk

diff --git a/target/linux/imx/Makefile b/target/linux/imx/Makefile
index 66ffa9bd311e..17f634a7bfcc 100644
--- a/target/linux/imx/Makefile
+++ b/target/linux/imx/Makefile
@@ -8,7 +8,7 @@ ARCH:=arm
 BOARD:=imx
 BOARDNAME:=NXP i.MX
 FEATURES:=audio display fpu gpio pcie rtc usb usbgadget squashfs targz nand ubifs boot-part rootfs-part
-SUBTARGETS:=cortexa9
+SUBTARGETS:=cortexa7 cortexa9
 
 KERNEL_PATCHVER:=5.4
 KERNEL_TESTING_PATCHVER:=5.10
diff --git a/target/linux/imx/cortexa7/base-files/etc/board.d/02_network b/target/linux/imx/cortexa7/base-files/etc/board.d/02_network
new file mode 100644
index 000000000000..75d1c7d1d80e
--- /dev/null
+++ b/target/linux/imx/cortexa7/base-files/etc/board.d/02_network
@@ -0,0 +1,15 @@
+. /lib/functions/uci-defaults.sh
+
+board=$(board_name)
+
+board_config_update
+
+case "$board" in
+*)
+	ucidef_set_interfaces_lan_wan "eth0" "eth1"
+	;;
+esac
+
+board_config_flush
+
+exit 0
diff --git a/target/linux/imx/cortexa7/base-files/lib/upgrade/platform.sh b/target/linux/imx/cortexa7/base-files/lib/upgrade/platform.sh
new file mode 100644
index 000000000000..9a613c43b1a2
--- /dev/null
+++ b/target/linux/imx/cortexa7/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,16 @@
+PART_NAME=firmware
+REQUIRE_IMAGE_METADATA=1
+
+platform_check_image() {
+	return 0
+}
+
+platform_do_upgrade() {
+	local board=$(board_name)
+
+	case "$board" in
+	*)
+		default_do_upgrade "$1"
+		;;
+	esac
+}
diff --git a/target/linux/imx/cortexa7/config-default b/target/linux/imx/cortexa7/config-default
new file mode 100644
index 000000000000..eb1986769e3e
--- /dev/null
+++ b/target/linux/imx/cortexa7/config-default
@@ -0,0 +1,24 @@
+CONFIG_ARM_CPU_SUSPEND=y
+CONFIG_ARM_GIC=y
+CONFIG_CMA=y
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CONTIG_ALLOC=y
+# CONFIG_DMA_CMA is not set
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_JFFS2_FS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPLIT_FIRMWARE=y
+CONFIG_MTD_SPLIT_FIT_FW=y
+CONFIG_PINCTRL_IMX=y
+CONFIG_PINCTRL_IMX6UL=y
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_SOC_IMX6=y
+CONFIG_SOC_IMX6UL=y
+CONFIG_SPI_FSL_QUADSPI=y
+CONFIG_SPI_MEM=y
diff --git a/target/linux/imx/cortexa7/target.mk b/target/linux/imx/cortexa7/target.mk
new file mode 100644
index 000000000000..11de87507d3f
--- /dev/null
+++ b/target/linux/imx/cortexa7/target.mk
@@ -0,0 +1,7 @@
+BOARDNAME:=NXP i.MX with Cortex-A7
+CPU_TYPE:=cortex-a7
+CPU_SUBTYPE:=neon-vfpv4
+
+define Target/Description
+	Build firmware images for NXP i.MX (Cortex-A7) based boards.
+endef
diff --git a/target/linux/imx/image/cortexa7.mk b/target/linux/imx/image/cortexa7.mk
new file mode 100644
index 000000000000..063b89fdd668
--- /dev/null
+++ b/target/linux/imx/image/cortexa7.mk
@@ -0,0 +1,10 @@
+define Device/Default
+  PROFILES := Default
+  FILESYSTEMS := squashfs ext4
+  KERNEL_INSTALL := 1
+  KERNEL_SUFFIX := -uImage
+  KERNEL_NAME := zImage
+  KERNEL := kernel-bin | uImage none
+  KERNEL_LOADADDR := 0x80008000
+  IMAGES :=
+endef
-- 
2.30.2