[PATCH v3 9/9] board: qualcomm: Add support for QCS404 EVB

Sumit Garg sumit.garg at linaro.org
Tue Jul 12 09:12:12 CEST 2022


Add support for Qualcomm QCS404 SoC based evaluation board.

Features:
- Qualcomm Snapdragon QCS404 SoC
- 1GiB RAM
- 8GiB eMMC, uSD slot

U-boot is chain loaded by ABL in 64-bit mode as part of boot.img.
For detailed build and boot instructions, refer to
doc/board/qualcomm/qcs404.rst.

Signed-off-by: Sumit Garg <sumit.garg at linaro.org>
---
 arch/arm/dts/Makefile                    |  1 +
 arch/arm/dts/qcs404-evb-uboot.dtsi       | 24 +++++++
 arch/arm/dts/qcs404-evb.dts              | 81 ++++++++++++++++++++++++
 arch/arm/mach-snapdragon/Kconfig         | 11 ++++
 arch/arm/mach-snapdragon/Makefile        |  2 +
 arch/arm/mach-snapdragon/sysmap-qcs404.c | 31 +++++++++
 board/qualcomm/qcs404-evb/Kconfig        | 15 +++++
 board/qualcomm/qcs404-evb/MAINTAINERS    |  6 ++
 board/qualcomm/qcs404-evb/Makefile       |  6 ++
 board/qualcomm/qcs404-evb/qcs404-evb.c   | 33 ++++++++++
 board/qualcomm/qcs404-evb/qcs404-evb.its | 64 +++++++++++++++++++
 configs/qcs404evb_defconfig              | 39 ++++++++++++
 doc/board/qualcomm/index.rst             |  1 +
 doc/board/qualcomm/qcs404.rst            | 79 +++++++++++++++++++++++
 include/configs/qcs404-evb.h             | 27 ++++++++
 15 files changed, 420 insertions(+)
 create mode 100644 arch/arm/dts/qcs404-evb-uboot.dtsi
 create mode 100644 arch/arm/dts/qcs404-evb.dts
 create mode 100644 arch/arm/mach-snapdragon/sysmap-qcs404.c
 create mode 100644 board/qualcomm/qcs404-evb/Kconfig
 create mode 100644 board/qualcomm/qcs404-evb/MAINTAINERS
 create mode 100644 board/qualcomm/qcs404-evb/Makefile
 create mode 100644 board/qualcomm/qcs404-evb/qcs404-evb.c
 create mode 100644 board/qualcomm/qcs404-evb/qcs404-evb.its
 create mode 100644 configs/qcs404evb_defconfig
 create mode 100644 doc/board/qualcomm/qcs404.rst
 create mode 100644 include/configs/qcs404-evb.h

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a7e0d9f6c0..a561b28cef 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -502,6 +502,7 @@ dtb-$(CONFIG_TARGET_TEN64) += fsl-ls1088a-ten64.dtb
 dtb-$(CONFIG_TARGET_DRAGONBOARD410C) += dragonboard410c.dtb
 dtb-$(CONFIG_TARGET_DRAGONBOARD820C) += dragonboard820c.dtb
 dtb-$(CONFIG_TARGET_STARQLTECHN) += starqltechn.dtb
+dtb-$(CONFIG_TARGET_QCS404EVB) += qcs404-evb.dtb
 
 dtb-$(CONFIG_TARGET_STEMMY) += ste-ux500-samsung-stemmy.dtb
 
diff --git a/arch/arm/dts/qcs404-evb-uboot.dtsi b/arch/arm/dts/qcs404-evb-uboot.dtsi
new file mode 100644
index 0000000000..c18080a483
--- /dev/null
+++ b/arch/arm/dts/qcs404-evb-uboot.dtsi
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot addition to handle QCS404 EVB pre-relocation devices
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg at linaro.org>
+ */
+
+/ {
+	soc {
+		u-boot,dm-pre-reloc;
+
+		pinctrl_north at 1300000 {
+			u-boot,dm-pre-reloc;
+		};
+
+		clock-controller at 1800000 {
+			u-boot,dm-pre-reloc;
+		};
+
+		serial at 78b1000 {
+			u-boot,dm-pre-reloc;
+		};
+	};
+};
diff --git a/arch/arm/dts/qcs404-evb.dts b/arch/arm/dts/qcs404-evb.dts
new file mode 100644
index 0000000000..4f0ae20bdb
--- /dev/null
+++ b/arch/arm/dts/qcs404-evb.dts
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm QCS404 based evaluation board device tree source
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg at linaro.org>
+ */
+
+/dts-v1/;
+
+#include "skeleton64.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/pinctrl-snapdragon.h>
+#include <dt-bindings/clock/qcom,gcc-qcs404.h>
+
+/ {
+	model = "Qualcomm Technologies, Inc. QCS404 EVB";
+	compatible = "qcom,qcs404-evb", "qcom,qcs404";
+	#address-cells = <0x2>;
+	#size-cells = <0x2>;
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		serial0 = &debug_uart;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0x80000000 0 0x40000000>;
+	};
+
+	soc {
+		#address-cells = <0x1>;
+		#size-cells = <0x1>;
+		ranges = <0x0 0x0 0x0 0xffffffff>;
+		compatible = "simple-bus";
+
+		pinctrl_north at 1300000 {
+			compatible = "qcom,tlmm-qcs404";
+			reg = <0x1300000 0x200000>;
+
+			blsp1_uart2: uart {
+				pins = "GPIO_17", "GPIO_18";
+				function = "blsp_uart2";
+			};
+		};
+
+		gcc: clock-controller at 1800000 {
+			compatible = "qcom,gcc-qcs404";
+			reg = <0x1800000 0x80000>;
+			#address-cells = <0x1>;
+			#size-cells = <0x0>;
+		};
+
+		debug_uart: serial at 78b1000 {
+			compatible = "qcom,msm-uartdm-v1.4";
+			reg = <0x78b1000 0x200>;
+			clock = <&gcc GCC_BLSP1_UART2_APPS_CLK>,
+				<&gcc GCC_BLSP1_AHB_CLK>;
+			bit-rate = <0xFF>;
+			pinctrl-names = "uart";
+			pinctrl-0 = <&blsp1_uart2>;
+		};
+
+		sdhci at 7804000 {
+			compatible = "qcom,sdhci-msm-v5";
+			reg = <0x7804000 0x1000 0x7805000 0x1000>;
+			clock = <&gcc GCC_SDCC1_APPS_CLK>,
+				<&gcc GCC_SDCC1_AHB_CLK>;
+			bus-width = <0x8>;
+			index = <0x0>;
+			non-removable;
+			mmc-ddr-1_8v;
+			mmc-hs400-1_8v;
+		};
+	};
+};
+
+#include "qcs404-evb-uboot.dtsi"
diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
index cb53dc8901..0927333306 100644
--- a/arch/arm/mach-snapdragon/Kconfig
+++ b/arch/arm/mach-snapdragon/Kconfig
@@ -69,11 +69,22 @@ config TARGET_STARQLTECHN
 	select SDM845
 	select DM_ETH if NET
 
+config TARGET_QCS404EVB
+	bool "Qualcomm Technologies, Inc. QCS404 EVB"
+	select LINUX_KERNEL_IMAGE_HEADER
+	help
+	  Support for Qualcomm Technologies, Inc. QCS404 evaluation board.
+	  Features:
+	  - Qualcomm Snapdragon QCS404 SoC
+	  - 1GiB RAM
+	  - 8GiB eMMC, uSD slot
+
 endchoice
 
 source "board/qualcomm/dragonboard410c/Kconfig"
 source "board/qualcomm/dragonboard820c/Kconfig"
 source "board/qualcomm/dragonboard845c/Kconfig"
 source "board/samsung/starqltechn/Kconfig"
+source "board/qualcomm/qcs404-evb/Kconfig"
 
 endif
diff --git a/arch/arm/mach-snapdragon/Makefile b/arch/arm/mach-snapdragon/Makefile
index cb8c1aa8d2..0d31f10f68 100644
--- a/arch/arm/mach-snapdragon/Makefile
+++ b/arch/arm/mach-snapdragon/Makefile
@@ -17,3 +17,5 @@ obj-y += pinctrl-apq8016.o
 obj-y += pinctrl-apq8096.o
 obj-y += pinctrl-qcs404.o
 obj-$(CONFIG_SDM845) += pinctrl-sdm845.o
+obj-$(CONFIG_TARGET_QCS404EVB) += clock-qcs404.o
+obj-$(CONFIG_TARGET_QCS404EVB) += sysmap-qcs404.o
diff --git a/arch/arm/mach-snapdragon/sysmap-qcs404.c b/arch/arm/mach-snapdragon/sysmap-qcs404.c
new file mode 100644
index 0000000000..b7409031a0
--- /dev/null
+++ b/arch/arm/mach-snapdragon/sysmap-qcs404.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm QCS404 memory map
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg at linaro.org>
+ */
+
+#include <common.h>
+#include <asm/armv8/mmu.h>
+
+static struct mm_region qcs404_mem_map[] = {
+	{
+		.virt = 0x0UL, /* Peripheral block */
+		.phys = 0x0UL, /* Peripheral block */
+		.size = 0x8000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		.virt = 0x80000000UL, /* DDR */
+		.phys = 0x80000000UL, /* DDR */
+		.size = 0x40000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = qcs404_mem_map;
diff --git a/board/qualcomm/qcs404-evb/Kconfig b/board/qualcomm/qcs404-evb/Kconfig
new file mode 100644
index 0000000000..32657c7d5e
--- /dev/null
+++ b/board/qualcomm/qcs404-evb/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_QCS404EVB
+
+config SYS_BOARD
+	default "qcs404-evb"
+
+config SYS_VENDOR
+	default "qualcomm"
+
+config SYS_SOC
+	default "qcs404"
+
+config SYS_CONFIG_NAME
+	default "qcs404-evb"
+
+endif
diff --git a/board/qualcomm/qcs404-evb/MAINTAINERS b/board/qualcomm/qcs404-evb/MAINTAINERS
new file mode 100644
index 0000000000..0a2e194ff6
--- /dev/null
+++ b/board/qualcomm/qcs404-evb/MAINTAINERS
@@ -0,0 +1,6 @@
+Qualcomm Technologies, Inc. QCS404 evaluation board
+M:	Sumit Garg <sumit.garg at linaro.org>
+S:	Maintained
+F:	board/qualcomm/qcs404-evb/
+F:	include/configs/qcs404-evb.h
+F:	configs/qcs404evb_defconfig
diff --git a/board/qualcomm/qcs404-evb/Makefile b/board/qualcomm/qcs404-evb/Makefile
new file mode 100644
index 0000000000..4665827e08
--- /dev/null
+++ b/board/qualcomm/qcs404-evb/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 Sumit Garg <sumit.garg at linaro.org>
+#
+
+obj-y += qcs404-evb.o
diff --git a/board/qualcomm/qcs404-evb/qcs404-evb.c b/board/qualcomm/qcs404-evb/qcs404-evb.c
new file mode 100644
index 0000000000..f1e6e7f7eb
--- /dev/null
+++ b/board/qualcomm/qcs404-evb/qcs404-evb.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Board init file for QCS404-EVB
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg at linaro.org>
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <dm.h>
+#include <env.h>
+#include <init.h>
+#include <asm/cache.h>
+#include <asm/global_data.h>
+#include <fdt_support.h>
+#include <asm/arch/dram.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	return fdtdec_setup_mem_size_base();
+}
+
+int board_init(void)
+{
+	return 0;
+}
+
+void reset_cpu(void)
+{
+	psci_system_reset();
+}
diff --git a/board/qualcomm/qcs404-evb/qcs404-evb.its b/board/qualcomm/qcs404-evb/qcs404-evb.its
new file mode 100644
index 0000000000..c9822827c9
--- /dev/null
+++ b/board/qualcomm/qcs404-evb/qcs404-evb.its
@@ -0,0 +1,64 @@
+/*
+ * U-Boot uImage source file with multiple kernels, ramdisks and FDT blobs
+ */
+
+/dts-v1/;
+
+/ {
+	description = "Various kernels, ramdisks and FDT blobs";
+	#address-cells = <1>;
+
+	images {
+		kernel-1 {
+			description = "5.18.0-rc1";
+			data = /incbin/("./qcs404_imgs/Image.gz");
+			type = "kernel";
+			arch = "arm64";
+			os = "linux";
+			compression = "gzip";
+			load = <0x80000000>;
+			entry = <0x80000000>;
+			hash-1 {
+				algo = "sha1";
+			};
+		};
+
+		ramdisk-1 {
+			description = "Initial ramdisk";
+			data = /incbin/("./qcs404_imgs/initramfs-tiny-image-qemuarm64-20220618074058-1169.rootfs.cpio.gz");
+			type = "ramdisk";
+			arch = "arm64";
+			os = "linux";
+			compression = "gzip";
+			load = <00000000>;
+			entry = <00000000>;
+			hash-1 {
+				algo = "sha1";
+			};
+		};
+
+		fdt-1 {
+			description = "qcs404-evb-fdt";
+			data = /incbin/("./qcs404_imgs/qcs404-evb-4000.dtb");
+			type = "flat_dt";
+			arch = "arm64";
+			compression = "none";
+			load = <0x83000000>;
+			hash-1 {
+				algo = "sha1";
+			};
+		};
+
+	};
+
+	configurations {
+		default = "config-1";
+
+		config-1 {
+			description = "qcs404-evb kernel-5.18.0-rc1 configuration";
+			kernel = "kernel-1";
+			ramdisk = "ramdisk-1";
+			fdt = "fdt-1";
+		};
+	};
+};
diff --git a/configs/qcs404evb_defconfig b/configs/qcs404evb_defconfig
new file mode 100644
index 0000000000..7c76e8353e
--- /dev/null
+++ b/configs/qcs404evb_defconfig
@@ -0,0 +1,39 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_COUNTER_FREQUENCY=19000000
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_SNAPDRAGON=y
+CONFIG_DEFAULT_DEVICE_TREE="qcs404-evb"
+CONFIG_TARGET_QCS404EVB=y
+CONFIG_IDENT_STRING="\nQualcomm QCS404-EVB"
+CONFIG_SYS_TEXT_BASE=0x0
+CONFIG_SYS_LOAD_ADDR=0x80000000
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_BOOTDELAY=5
+CONFIG_SAVE_PREV_BL_FDT_ADDR=y
+CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR=y
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BMP=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+# CONFIG_NET is not set
+CONFIG_CLK=y
+CONFIG_PINCTRL=y
+CONFIG_DM_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_ADMA=y
+CONFIG_MMC_SDHCI_MSM=y
+CONFIG_MMC_HS400_SUPPORT=y
+CONFIG_MSM_SERIAL=y
+CONFIG_LMB_MAX_REGIONS=64
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="earlycon ignore_loglevel root= clk_ignore_unused"
diff --git a/doc/board/qualcomm/index.rst b/doc/board/qualcomm/index.rst
index 10b98214e9..0f9c429956 100644
--- a/doc/board/qualcomm/index.rst
+++ b/doc/board/qualcomm/index.rst
@@ -8,3 +8,4 @@ Qualcomm
 
    dragonboard410c
    sdm845
+   qcs404
diff --git a/doc/board/qualcomm/qcs404.rst b/doc/board/qualcomm/qcs404.rst
new file mode 100644
index 0000000000..bbb40b043b
--- /dev/null
+++ b/doc/board/qualcomm/qcs404.rst
@@ -0,0 +1,79 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Sumit Garg <sumit.garg at linaro.org>
+
+QCS404 EVB
+==========
+
+About this
+----------
+This document describes the information about Qualcomm QCS404 evaluation board
+and it's usage steps.
+
+U-Boot can be used as a replacement for Qualcomm's original ABL (UEFI) bootloader.
+It is loaded as an Android boot image through ABL
+
+Installation
+------------
+Build
+^^^^^
+Setup ``CROSS_COMPILE`` for aarch64 and build U-Boot for your board::
+
+	$ export CROSS_COMPILE=<aarch64 toolchain prefix>
+	$ make qcs404evb_defconfig
+	$ make
+
+This will build ``u-boot.bin`` in the configured output directory.
+
+Generate FIT image
+^^^^^^^^^^^^^^^^^^
+A ``qcs404.its`` file can be found in ``board/qualcomm/qcs404-evb/`` directory.
+It expects a folder as ``qcs404_imgs/`` in the main directory containing
+pre-built kernel, dts and ramdisk images. See ``qcs404.its`` for full path to
+images.
+
+- Build FIT image::
+
+	mkimage -f qcs404-evb.its qcs404-evb.itb
+
+Pack android boot image
+^^^^^^^^^^^^^^^^^^^^^^^
+We'll assemble android boot image with ``u-boot.bin`` instead of linux kernel,
+and FIT image instead of ``initramfs``. Android bootloader expect gzipped kernel
+with appended dtb, so let's mimic linux to satisfy stock bootloader:
+
+- create dump dtb::
+
+	workdir=/tmp/prepare_payload
+	mkdir -p "$workdir"
+	cd "$workdir"
+	mock_dtb="$workdir"/payload_mock.dtb
+
+	dtc -I dts -O dtb -o "$mock_dtb" << EOF
+	/dts-v1/;
+	/ {
+		model = "Qualcomm Technologies, Inc. QCS404 EVB 4000";
+		compatible = "qcom,qcs404-evb-4000", "qcom,qcs404-evb", "qcom,qcs404";
+
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		memory at 80000000 {
+			device_type = "memory";
+			/* We expect the bootloader to fill in the size */
+			reg = <0 0x80000000 0 0>;
+		};
+
+		chosen { };
+	};
+	EOF
+
+- gzip u-boot ``gzip u-boot.bin``
+- append dtb to gzipped u-boot: ``cat u-boot.bin.gz "$mock_dtb" > u-boot.bin.gz-dtb``
+
+Now we've got everything to build android boot image:::
+
+	mkbootimg --kernel u-boot.bin.gz-dtb \
+	--ramdisk qcs404-evb.itb --pagesize 4096 \
+	--base 0x80000000 --output boot.img
+
+Flash image on qcs404-evb using fastboot method.
diff --git a/include/configs/qcs404-evb.h b/include/configs/qcs404-evb.h
new file mode 100644
index 0000000000..a7f645b613
--- /dev/null
+++ b/include/configs/qcs404-evb.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration file for QCS404 evaluation board
+ *
+ * (C) Copyright 2022 Sumit Garg <sumit.garg at linaro.org>
+ */
+
+#ifndef __CONFIGS_QCS404EVB_H
+#define __CONFIGS_QCS404EVB_H
+
+#include <linux/sizes.h>
+#include <asm/arch/sysmap-qcs404.h>
+
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 115200, 230400, 460800, 921600 }
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"bootm_size=0x5000000\0"	\
+	"bootm_low=0x80000000\0"	\
+	"bootcmd=bootm $prevbl_initrd_start_addr\0"
+
+#define CONFIG_SYS_BOOTM_LEN	SZ_64M
+
+/* Monitor Command Prompt */
+#define CONFIG_SYS_CBSIZE	512
+#define CONFIG_SYS_MAXARGS	64
+
+#endif
-- 
2.25.1



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