board: starfive: add StarFive VisionFive v2 board support

Add board support for StarFive VisionFive v2.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>

diff --git a/board/starfive/visionfive2/MAINTAINERS b/board/starfive/visionfive2/MAINTAINERS
new file mode 100644 (file)
index 0000000..c536908
--- /dev/null
+++ b/board/starfive/visionfive2/MAINTAINERS
@@ -0,0 +1,7 @@
+STARFIVE JH7110 VISIONFIVE2 BOARD
+M: startfive
+S:     Maintained
+F:     arch/riscv/include/asm/arch-jh7110/
+F:     board/starfive/visionfive2/
+F:     include/configs/starfive-visionfive2.h
+F:     configs/starfive_visionfive2_defconfig

diff --git a/board/starfive/visionfive2/Makefile b/board/starfive/visionfive2/Makefile
new file mode 100644 (file)
index 0000000..66c854d
--- /dev/null
+++ b/board/starfive/visionfive2/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2022 StarFive Technology Co., Ltd.
+#
+
+obj-y  := starfive_visionfive2.o
+obj-$(CONFIG_SPL_BUILD) += spl.o

diff --git a/board/starfive/visionfive2/spl.c b/board/starfive/visionfive2/spl.c
new file mode 100644 (file)
index 0000000..db0b4cb
--- /dev/null
+++ b/board/starfive/visionfive2/spl.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ * Author: Yanhong Wang<yanhong.wang@starfivetech.com>
+ */
+
+#include <common.h>
+#include <asm/arch/regs.h>
+#include <asm/arch/spl.h>
+#include <asm/io.h>
+#include <log.h>
+#include <spl.h>
+
+#define JH7110_CLK_CPU_ROOT_OFFSET             0x0U
+#define JH7110_CLK_CPU_ROOT_SHIFT              24
+#define JH7110_CLK_CPU_ROOT_MASK               GENMASK(29, 24)
+
+int spl_board_init_f(void)
+{
+       int ret;
+
+       ret = spl_soc_init();
+       if (ret) {
+               debug("JH7110 SPL init failed: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
+u32 spl_boot_device(void)
+{
+       u32 mode;
+
+       mode = in_le32(JH7110_BOOT_MODE_SELECT_REG)
+                               & JH7110_BOOT_MODE_SELECT_MASK;
+       switch (mode) {
+       case 0:
+               return BOOT_DEVICE_SPI;
+
+       case 1:
+               return BOOT_DEVICE_MMC2;
+
+       case 2:
+               return BOOT_DEVICE_MMC1;
+
+       case 3:
+               return BOOT_DEVICE_UART;
+
+       default:
+               debug("Unsupported boot device 0x%x.\n", mode);
+               return BOOT_DEVICE_NONE;
+       }
+}
+
+void board_init_f(ulong dummy)
+{
+       int ret;
+
+       ret = spl_early_init();
+       if (ret)
+               panic("spl_early_init() failed: %d\n", ret);
+
+       riscv_cpu_setup(NULL, NULL);
+       preloader_console_init();
+
+       /* Set the parent clock of cpu_root clock to pll0,
+        * it must be initialized here
+        */
+       clrsetbits_le32(JH7110_SYS_CRG + JH7110_CLK_CPU_ROOT_OFFSET,
+                       JH7110_CLK_CPU_ROOT_MASK,
+                       BIT(JH7110_CLK_CPU_ROOT_SHIFT));
+
+       ret = spl_board_init_f();
+       if (ret) {
+               debug("spl_board_init_f init failed: %d\n", ret);
+               return;
+       }
+}
+
+#if CONFIG_IS_ENABLED(SPL_LOAD_FIT)
+int board_fit_config_name_match(const char *name)
+{
+       /* boot using first FIT config */
+       return 0;
+}
+#endif

diff --git a/board/starfive/visionfive2/starfive_visionfive2.c b/board/starfive/visionfive2/starfive_visionfive2.c
new file mode 100644 (file)
index 0000000..613fe79
--- /dev/null
+++ b/board/starfive/visionfive2/starfive_visionfive2.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ * Author: Yanhong Wang<yanhong.wang@starfivetech.com>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <cpu_func.h>
+#include <linux/bitops.h>
+
+#define JH7110_L2_PREFETCHER_BASE_ADDR         0x2030000
+#define JH7110_L2_PREFETCHER_HART_OFFSET       0x2000
+
+/* enable U74-mc hart1~hart4 prefetcher */
+static void enable_prefetcher(void)
+{
+       u8 hart;
+       u32 *reg;
+
+       /* JH7110 use U74MC CORE IP, it include five cores(one S7 and four U7),
+        * but only U7 cores support prefetcher configuration
+        */
+       for (hart = 1; hart < 5; hart++) {
+               reg = (void *)(u64)(JH7110_L2_PREFETCHER_BASE_ADDR
+                                       + hart * JH7110_L2_PREFETCHER_HART_OFFSET);
+
+               mb(); /* memory barrier */
+               setbits_le32(reg, 0x1);
+               mb(); /* memory barrier */
+       }
+}
+
+int board_init(void)
+{
+       enable_caches();
+       enable_prefetcher();
+
+       return 0;
+}

diff --git a/doc/board/index.rst b/doc/board/index.rst
index 69e2cd5fb8bac555c3bbab719cb29a56e98006ed..b2da6ec553281cf87c8ccce46c3818165e672186 100644 (file)
--- a/doc/board/index.rst
+++ b/doc/board/index.rst
@@ -40,6 +40,7 @@ Board-specific doc
    sipeed/index
    socionext/index
    st/index
+   starfive/index
    ste/index
    tbs/index
    ti/index

diff --git a/doc/board/starfive/index.rst b/doc/board/starfive/index.rst
new file mode 100644 (file)
index 0000000..0c52dc7
--- /dev/null
+++ b/doc/board/starfive/index.rst
@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+StarFive
+========
+
+.. toctree::
+   :maxdepth: 1
+
+   visionfive2

diff --git a/doc/board/starfive/visionfive2.rst b/doc/board/starfive/visionfive2.rst
new file mode 100644 (file)
index 0000000..22d2a31
--- /dev/null
+++ b/doc/board/starfive/visionfive2.rst
@@ -0,0 +1,492 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+StarFive VisionFive2
+====================
+
+JH7110 RISC-V SoC
+---------------------
+The JH7110 is 4+1 64-bit RISC-V SoC from StarFive.
+
+The StarFive VisionFive2 development platform is based on JH7110 and capable
+of running Linux.
+
+Mainline support
+----------------
+
+The support for following drivers are already enabled:
+
+1. ns16550 UART Driver.
+2. StarFive JH7110 clock Driver.
+3. StarFive JH7110 reset Driver.
+4. Cadence QSPI controller Driver.
+5. MMC SPI Driver for MMC/SD support.
+
+Booting from MMC using U-Boot SPL
+---------------------------------
+
+The current U-Boot port is supported in S-mode only and loaded from DRAM.
+
+A prior stage M-mode firmware/bootloader (e.g OpenSBI) is required to
+boot the u-boot.itb in S-mode and provide M-mode runtime services.
+
+Currently, the u-boot.itb is used as a dynamic of the OpenSBI FW_DYNAMIC
+firmware with the latest.
+
+Building
+~~~~~~~~
+
+1. Add the RISC-V toolchain to your PATH.
+2. Setup ARCH & cross compilation environment variable:
+
+.. code-block:: none
+
+   export CROSS_COMPILE=<riscv64 toolchain prefix>
+
+Before building U-Boot SPL, OpenSBI must be built first. OpenSBI can be
+cloned and built for JH7110 as below:
+
+.. code-block:: console
+
+       git clone https://github.com/riscv/opensbi.git
+       cd opensbi
+       make PLATFORM=generic FW_TEXT_START=0x40000000 FW_OPTIONS=0
+
+More detailed description of steps required to build FW_DYNAMIC firmware
+is beyond the scope of this document. Please refer OpenSBI documenation.
+(Note: OpenSBI git repo is at https://github.com/riscv/opensbi.git)
+
+Now build the U-Boot SPL and U-Boot proper
+
+.. code-block:: console
+
+       cd <U-Boot-dir>
+       make starfive_visionfive2_13b_defconfig
+       make OPENSBI=$(opensbi_dir)/opensbi/build/platform/generic/firmware/fw_dynamic.bin
+
+This will generate spl/u-boot-spl.bin and FIT image (u-boot.itb)
+
+u-boot-spl.bin cannot be used directly on StarFive VisionFive2,we need
+to convert the u-boot-spl.bin to u-boot-spl.bin.normal.out with
+the below command:
+
+       ./spl_tool -c -f $(Uboot_PATH)/spl/u-boot-spl.bin
+
+More detailed description of spl_tool,please refer spl_tool documenation.
+(Note: spl_tool git repo is at https://github.com/starfive-tech/Tools/tree/master/spl_tool)
+
+This will generate u-boot-spl.bin.normal.out file.
+
+Flashing
+~~~~~~~~
+
+SPL loads the U-Boot SPL (u-boot-spl.bin.normal.out) from a partition with GUID type
+2E54B353-1271-4842-806F-E436D6AF6985
+
+U-Boot SPL expects a U-Boot FIT image (u-boot.itb) from a partition with GUID
+type BC13C2FF-59E6-4262-A352-B275FD6F7172
+
+FIT image (u-boot.itb) is a combination of fw_dynamic.bin, u-boot-nodtb.bin and
+device tree blob (jh7110-starfive-visionfive-2-v1.3b.dtb/jh7110-starfive-visionfive-2-v1.2a.dtb)
+
+Format the SD card (make sure the disk has GPT, otherwise use gdisk to switch)
+
+.. code-block:: bash
+
+       sudo sgdisk --clear \
+         --set-alignment=2 \
+         --new=1:4096:8191 --change-name=1:spl --typecode=1:2E54B353-1271-4842-806F-E436D6AF6985\
+         --new=2:8192:16383 --change-name=2:uboot --typecode=2:BC13C2FF-59E6-4262-A352-B275FD6F7172  \
+         --new=3:16384:1654784 --change-name=3:system --typecode=3:EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 \
+         /dev/sdb
+
+Program the SD card
+
+.. code-block:: bash
+
+       sudo dd if=u-boot-spl.bin.normal.out of=/dev/sdb1
+       sudo dd if=u-boot.itb of=/dev/sdb2
+
+       sudo mount /dev/sdb3 /mnt/
+       sudo cp u-boot-spl.bin.normal.out /mnt/
+       sudo cp u-boot.itb /mnt/
+       sudo cp Image.gz /mnt/
+       sudo cp initramfs.cpio.gz /mnt/
+       sudo cp jh7110-starfive-visionfive-2-v1.3b.dtb /mnt/
+       sudo umount /mnt
+
+Booting
+~~~~~~~
+
+Change DIP switches MSEL[1:0] are set to 10, select the boot mode to SD.
+Once you plugin the sdcard and power up, you should see the U-Boot prompt.
+
+Sample boot log from StarFive VisionFive2 board
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: none
+
+
+       U-Boot SPL 2023.04-rc2-00055-gfc43b9c51a-dirty (Mar 02 2023 - 10:51:39 +0800)
+       DDR version: dc2e84f0.
+       Trying to boot from MMC2
+
+       OpenSBI v1.2-80-g4b28afc
+       ____                    _____ ____ _____
+       / __ \                  / ____|  _ \_   _|
+       | |  | |_ __   ___ _ __ | (___ | |_) || |
+       | |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
+       | |__| | |_) |  __/ | | |____) | |_) || |_
+       \____/| .__/ \___|_| |_|_____/|___/_____|
+                       | |
+                       |_|
+
+       Platform Name             : StarFive VisionFive 2 v1.3B
+       Platform Features         : medeleg
+       Platform HART Count       : 5
+       Platform IPI Device       : aclint-mswi
+       Platform Timer Device     : aclint-mtimer @ 4000000Hz
+       Platform Console Device   : uart8250
+       Platform HSM Device       : ---
+       Platform PMU Device       : ---
+       Platform Reboot Device    : ---
+       Platform Shutdown Device  : ---
+       Platform Suspend Device   : ---
+       Firmware Base             : 0x40000000
+       Firmware Size             : 264 KB
+       Firmware RW Offset        : 0x20000
+       Runtime SBI Version       : 1.0
+
+       Domain0 Name              : root
+       Domain0 Boot HART         : 2
+       Domain0 HARTs             : 0*,1*,2*,3*,4*
+       Domain0 Region00          : 0x0000000002000000-0x000000000200ffff M: (I,R,W) S/U: ()
+       Domain0 Region01          : 0x0000000040000000-0x000000004001ffff M: (R,X) S/U: ()
+       Domain0 Region02          : 0x0000000040000000-0x000000004007ffff M: (R,W) S/U: ()
+       Domain0 Region03          : 0x0000000000000000-0xffffffffffffffff M: (R,W,X) S/U: (R,W,X)
+       Domain0 Next Address      : 0x0000000040200000
+       Domain0 Next Arg1         : 0x0000000040287970
+       Domain0 Next Mode         : S-mode
+       Domain0 SysReset          : yes
+       Domain0 SysSuspend        : yes
+
+       Boot HART ID              : 2
+       Boot HART Domain          : root
+       Boot HART Priv Version    : v1.11
+       Boot HART Base ISA        : rv64imafdcbx
+       Boot HART ISA Extensions  : none
+       Boot HART PMP Count       : 8
+       Boot HART PMP Granularity : 4096
+       Boot HART PMP Address Bits: 34
+       Boot HART MHPM Count      : 2
+       Boot HART MIDELEG         : 0x0000000000000222
+       Boot HART MEDELEG         : 0x000000000000b109
+
+
+       U-Boot 2023.04-rc2-00055-gfc43b9c51a-dirty (Mar 02 2023 - 10:51:39 +0800)
+
+       CPU:   rv64imac_zba_zbb
+       Model: StarFive VisionFive 2 v1.3B
+       DRAM:  8 GiB
+       Core:  107 devices, 18 uclasses, devicetree: separate
+       MMC:   mmc@16010000: 0, mmc@16020000: 1
+       Loading Environment from nowhere... OK
+       In:    serial@10000000
+       Out:   serial@10000000
+       Err:   serial@10000000
+       Net:   No ethernet found.
+       Working FDT set to ff74a340
+       Hit any key to stop autoboot:  0
+       StarFive #
+       StarFive #version
+       U-Boot 2023.04-rc2-00055-gfc43b9c51a-dirty (Mar 02 2023 - 10:51:39 +0800)
+
+       riscv64-buildroot-linux-gnu-gcc.br_real (Buildroot VF2_515_v1.0.0_rc4) 10.3.0
+       GNU ld (GNU Binutils) 2.36.1
+       StarFive #
+       StarFive #mmc dev 1
+       switch to partitions #0, OK
+       mmc1 is current device
+       StarFive #mmc info
+       Device: mmc@16020000
+       Manufacturer ID: 9f
+       OEM: 5449
+       Name: SD64G
+       Bus Speed: 50000000
+       Mode: SD High Speed (50MHz)
+       Rd Block Len: 512
+       SD version 3.0
+       High Capacity: Yes
+       Capacity: 58.3 GiB
+       Bus Width: 4-bit
+       Erase Group Size: 512 Bytes
+       StarFive #
+       StarFive #mmc part
+
+       Partition Map for MMC device 1  --   Partition Type: EFI
+
+       Part    Start LBA       End LBA         Name
+                       Attributes
+                       Type GUID
+                       Partition GUID
+       1     0x00001000      0x00001fff      "spl"
+                       attrs:  0x0000000000000000
+                       type:   2e54b353-1271-4842-806f-e436d6af6985
+                                       (2e54b353-1271-4842-806f-e436d6af6985)
+                       guid:   d5ee2056-3020-475b-9a33-25b4257c9f12
+       2     0x00002000      0x00003fff      "uboot"
+                       attrs:  0x0000000000000000
+                       type:   bc13c2ff-59e6-4262-a352-b275fd6f7172
+                                       (bc13c2ff-59e6-4262-a352-b275fd6f7172)
+                       guid:   379ab7fe-fd0c-4149-b758-960c1cbfc0cc
+       3     0x00004000      0x00194000      "system"
+                       attrs:  0x0000000000000000
+                       type:   ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
+                                       (data)
+                       guid:   539a6df9-4655-4953-8541-733ca36eb1db
+       StarFive #
+       StarFive #fatls mmc 1:3
+       6429424   Image.gz
+       717705   u-boot.itb
+       125437   u-boot-spl.bin.normal.out
+       152848495   initramfs.cpio.gz
+               11285   jh7110-starfive-visionfive-2-v1.3b.dtb
+
+       5 file(s), 0 dir(s)
+
+       StarFive #fatload mmc 1:3 ${kernel_addr_r} Image.gz
+       6429424 bytes read in 394 ms (15.6 MiB/s)
+       StarFive #fatload mmc 1:3 ${fdt_addr_r} jh7110-starfive-visionfive-2-v1.3b.dtb
+       11285 bytes read in 5 ms (2.2 MiB/s)
+       StarFive #fatload mmc 1:3 ${ramdisk_addr_r} initramfs.cpio.gz
+       152848495 bytes read in 9271 ms (15.7 MiB/s)
+       StarFive #booti ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r}
+       Uncompressing Kernel Image
+       ## Flattened Device Tree blob at 46000000
+       Booting using the fdt blob at 0x46000000
+       Working FDT set to 46000000
+       Loading Ramdisk to f5579000, end fe73d86f ... OK
+       Loading Device Tree to 00000000f5573000, end 00000000f5578c14 ... OK
+       Working FDT set to f5573000
+
+       Starting kernel ...
+
+
+       ] Linux version 6.2.0-starfive-00026-g11934a315b67 (wyh@wyh-VirtualBox) (riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, GNU ld (GNU Binutils for Ubuntu) 2.30) #1 SMP Thu Mar  2 14:51:36 CST 2023
+       [    0.000000] OF: fdt: Ignoring memory range 0x40000000 - 0x40200000
+       [    0.000000] Machine model: StarFive VisionFive 2 v1.3B
+       [    0.000000] efi: UEFI not found.
+       [    0.000000] Zone ranges:
+       [    0.000000]   DMA32    [mem 0x0000000040200000-0x00000000ffffffff]
+       [    0.000000]   Normal   [mem 0x0000000100000000-0x000000013fffffff]
+       [    0.000000] Movable zone start for each node
+       [    0.000000] Early memory node ranges
+       [    0.000000]   node   0: [mem 0x0000000040200000-0x000000013fffffff]
+       [    0.000000] Initmem setup node 0 [mem 0x0000000040200000-0x000000013fffffff]
+       [    0.000000] On node 0, zone DMA32: 512 pages in unavailable ranges
+       [    0.000000] SBI specification v1.0 detected
+       [    0.000000] SBI implementation ID=0x1 Version=0x10002
+       [    0.000000] SBI TIME extension detected
+       [    0.000000] SBI IPI extension detected
+       [    0.000000] SBI RFENCE extension detected
+       [    0.000000] SBI HSM extension detected
+       [    0.000000] CPU with hartid=0 is not available
+       [    0.000000] CPU with hartid=0 is not available
+       [    0.000000] CPU with hartid=0 is not available
+       [    0.000000] riscv: base ISA extensions acdfim
+       [    0.000000] riscv: ELF capabilities acdfim
+       [    0.000000] percpu: Embedded 18 pages/cpu s35960 r8192 d29576 u73728
+       [    0.000000] pcpu-alloc: s35960 r8192 d29576 u73728 alloc=18*4096
+       [    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
+       [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 1031688
+       [    0.000000] Kernel command line: console=ttyS0,115200 debug rootwait earlycon=sbi
+       [    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
+       [    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
+       [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
+       [    0.000000] software IO TLB: area num 4.
+       [    0.000000] software IO TLB: mapped [mem 0x00000000f1573000-0x00000000f5573000] (64MB)
+       [    0.000000] Virtual kernel memory layout:
+       [    0.000000]       fixmap : 0xffffffc6fee00000 - 0xffffffc6ff000000   (2048 kB)
+       [    0.000000]       pci io : 0xffffffc6ff000000 - 0xffffffc700000000   (  16 MB)
+       [    0.000000]      vmemmap : 0xffffffc700000000 - 0xffffffc800000000   (4096 MB)
+       [    0.000000]      vmalloc : 0xffffffc800000000 - 0xffffffd800000000   (  64 GB)
+       [    0.000000]      modules : 0xffffffff0136a000 - 0xffffffff80000000   (2028 MB)
+       [    0.000000]       lowmem : 0xffffffd800000000 - 0xffffffd8ffe00000   (4094 MB)
+       [    0.000000]       kernel : 0xffffffff80000000 - 0xffffffffffffffff   (2047 MB)
+       [    0.000000] Memory: 3867604K/4192256K available (8012K kernel code, 4919K rwdata, 4096K rodata, 2190K init, 476K bss, 324652K reserved, 0K cma-reserved)
+       [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
+       [    0.000000] rcu: Hierarchical RCU implementation.
+       [    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4.
+       [    0.000000] rcu:     RCU debug extended QS entry/exit.
+       [    0.000000]  Tracing variant of Tasks RCU enabled.
+       [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
+       [    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
+       [    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
+       [    0.000000] CPU with hartid=0 is not available
+       [    0.000000] riscv-intc: unable to find hart id for /cpus/cpu@0/interrupt-controller
+       [    0.000000] riscv-intc: 64 local interrupts mapped
+       [    0.000000] plic: interrupt-controller@c000000: mapped 136 interrupts with 4 handlers for 9 contexts.
+       [    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
+       [    0.000000] riscv-timer: riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [4]
+       [    0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 881590404240 ns
+       [    0.000003] sched_clock: 64 bits at 4MHz, resolution 250ns, wraps every 2199023255500ns
+       [    0.000437] Console: colour dummy device 80x25
+       [    0.000568] Calibrating delay loop (skipped), value calculated using timer frequency.. 8.00 BogoMIPS (lpj=16000)
+       [    0.000602] pid_max: default: 32768 minimum: 301
+       [    0.000752] LSM: initializing lsm=capability,integrity
+       [    0.001071] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
+       [    0.001189] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, linear)
+       [    0.004201] CPU node for /cpus/cpu@0 exist but the possible cpu range is :0-3
+       [    0.007426] cblist_init_generic: Setting adjustable number of callback queues.
+       [    0.007457] cblist_init_generic: Setting shift to 2 and lim to 1.
+       [    0.007875] riscv: ELF compat mode unsupported
+       [    0.007902] ASID allocator disabled (0 bits)
+       [    0.008405] rcu: Hierarchical SRCU implementation.
+       [    0.008426] rcu:     Max phase no-delay instances is 1000.
+       [    0.009247] EFI services will not be available.
+       [    0.010738] smp: Bringing up secondary CPUs ...
+       [    0.018358] smp: Brought up 1 node, 4 CPUs
+       [    0.021776] devtmpfs: initialized
+       [    0.027337] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
+       [    0.027389] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
+       [    0.027888] pinctrl core: initialized pinctrl subsystem
+       [    0.029881] NET: Registered PF_NETLINK/PF_ROUTE protocol family
+       [    0.030401] audit: initializing netlink subsys (disabled)
+       [    0.031041] audit: type=2000 audit(0.028:1): state=initialized audit_enabled=0 res=1
+       [    0.031943] cpuidle: using governor menu
+       [    0.043011] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
+       [    0.043033] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page
+       [    0.044943] iommu: Default domain type: Translated
+       [    0.044965] iommu: DMA domain TLB invalidation policy: strict mode
+       [    0.046089] SCSI subsystem initialized
+       [    0.046733] libata version 3.00 loaded.
+       [    0.047231] usbcore: registered new interface driver usbfs
+       [    0.047315] usbcore: registered new interface driver hub
+       [    0.047420] usbcore: registered new device driver usb
+       [    0.049770] vgaarb: loaded
+       [    0.050277] clocksource: Switched to clocksource riscv_clocksource
+       [    0.084690] NET: Registered PF_INET protocol family
+       [    0.085561] IP idents hash table entries: 65536 (order: 7, 524288 bytes, linear)
+       [    0.093010] tcp_listen_portaddr_hash hash table entries: 2048 (order: 4, 65536 bytes, linear)
+       [    0.093152] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
+       [    0.093224] TCP established hash table entries: 32768 (order: 6, 262144 bytes, linear)
+       [    0.093821] TCP bind hash table entries: 32768 (order: 9, 2097152 bytes, linear)
+       [    0.117880] TCP: Hash tables configured (established 32768 bind 32768)
+       [    0.118500] UDP hash table entries: 2048 (order: 5, 196608 bytes, linear)
+       [    0.118881] UDP-Lite hash table entries: 2048 (order: 5, 196608 bytes, linear)
+       [    0.119675] NET: Registered PF_UNIX/PF_LOCAL protocol family
+       [    0.121749] RPC: Registered named UNIX socket transport module.
+       [    0.121776] RPC: Registered udp transport module.
+       [    0.121784] RPC: Registered tcp transport module.
+       [    0.121791] RPC: Registered tcp NFSv4.1 backchannel transport module.
+       [    0.121816] PCI: CLS 0 bytes, default 64
+       [    0.124101] Unpacking initramfs...
+       [    0.125468] workingset: timestamp_bits=46 max_order=20 bucket_order=0
+       [    0.128372] NFS: Registering the id_resolver key type
+       [    0.128498] Key type id_resolver registered
+       [    0.128525] Key type id_legacy registered
+       [    0.128625] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
+       [    0.128649] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
+       [    0.129358] 9p: Installing v9fs 9p2000 file system support
+       [    0.130179] NET: Registered PF_ALG protocol family
+       [    0.130499] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
+       [    0.130544] io scheduler mq-deadline registered
+       [    0.130556] io scheduler kyber registered
+       [    0.416754] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
+       [    0.420857] SuperH (H)SCI(F) driver initialized
+       [    0.443735] loop: module loaded
+       [    0.448605] e1000e: Intel(R) PRO/1000 Network Driver
+       [    0.448627] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
+       [    0.450716] usbcore: registered new interface driver uas
+       [    0.450832] usbcore: registered new interface driver usb-storage
+       [    0.451638] mousedev: PS/2 mouse device common for all mice
+       [    0.453465] sdhci: Secure Digital Host Controller Interface driver
+       [    0.453487] sdhci: Copyright(c) Pierre Ossman
+       [    0.453584] sdhci-pltfm: SDHCI platform and OF driver helper
+       [    0.454140] usbcore: registered new interface driver usbhid
+       [    0.454174] usbhid: USB HID core driver
+       [    0.454833] riscv-pmu-sbi: SBI PMU extension is available
+       [    0.454920] riscv-pmu-sbi: 16 firmware and 4 hardware counters
+       [    0.454942] riscv-pmu-sbi: Perf sampling/filtering is not supported as sscof extension is not available
+       [    0.457071] NET: Registered PF_INET6 protocol family
+       [    0.460627] Segment Routing with IPv6
+       [    0.460821] In-situ OAM (IOAM) with IPv6
+       [    0.461005] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
+       [    0.462712] NET: Registered PF_PACKET protocol family
+       [    0.462933] 9pnet: Installing 9P2000 support
+       [    0.463141] Key type dns_resolver registered
+       [    0.463168] start plist test
+       [    0.469261] end plist test
+       [    0.506774] debug_vm_pgtable: [debug_vm_pgtable         ]: Validating architecture page table helpers
+       [    0.553683] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation.
+       [    0.554741] starfive-jh7110-sys-pinctrl 13040000.pinctrl: StarFive GPIO chip registered 64 GPIOs
+       [    0.555900] gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation.
+       [    0.556772] starfive-jh7110-aon-pinctrl 17020000.pinctrl: StarFive GPIO chip registered 4 GPIOs
+       [    0.559454] printk: console [ttyS0] disabled
+       [    0.579948] 10000000.serial: ttyS0 at MMIO 0x10000000 (irq = 3, base_baud = 1500000) is a 16550A
+       [    0.580082] printk: console [ttyS0] enabled
+       [   13.642680] Freeing initrd memory: 149264K
+       [   13.651051] Freeing unused kernel image (initmem) memory: 2188K
+       [   13.666431] Run /init as init process
+       [   13.670116]   with arguments:
+       [   13.673168]     /init
+       [   13.675488]   with environment:
+       [   13.678668]     HOME=/
+       [   13.681038]     TERM=linux
+       Starting syslogd: OK
+       Starting klogd: OK
+       Running sysctl: OK
+       Populating /dev using udev: [   14.145944] udevd[93]: starting version 3.2.10
+       [   15.214287] random: crng init done
+       [   15.240816] udevd[94]: starting eudev-3.2.10
+       done
+       Saving random seed: OK
+       Starting system message bus: dbus[122]: Unknown username "pulse" in message bus configuration file
+       done
+       Starting rpcbind: OK
+       Starting iptables: OK
+       Starting bluetoothd: OK
+       Starting network: Waiting for interface eth0 to appear............... timeout!
+       run-parts: /etc/network/if-pre-up.d/wait_iface: exit status 1
+       FAIL
+       Starting dropbear sshd: OK
+       Starting NFS statd: OK
+       Starting NFS services: OK
+       Starting NFS daemon: rpc.nfsd: Unable to access /proc/fs/nfsd errno 2 (No such file or directory).
+       Please try, as root, 'mount -t nfsd nfsd /proc/fs/nfsd' and then restart rpc.nfsd to correct the problem
+       FAIL
+       Starting NFS mountd: OK
+       Starting DHCP server: FAIL
+
+       Welcome to Buildroot
+       buildroot login:
+
+Booting from SPI
+----------------
+
+Use Building steps from "Booting from MMC using U-Boot SPL" section.
+
+Partition the SPI in Linux via mtdblock. (Require to boot the board in
+SD boot mode by enabling MTD block in Linux)
+
+Use prebuilt image from here [1], which support to partition the SPI flash.
+
+
+Program the SPI (Require to boot the board in SD boot mode)
+
+Execute below steps on U-Boot proper,
+
+.. code-block:: none
+
+  sf probe
+  fatload mmc 1:3 $kernel_addr_r u-boot.itb
+  sf update $kernel_addr_r 0x100000 $filesize
+
+  fatload mmc 1:3 $kernel_addr_r u-boot-spl.bin.normal.out
+  sf update $kernel_addr_r 0x0 $filesize
+
+
+Power off the board
+
+Change DIP switches MSEL[1:0] are set to 00, select the boot mode to flash
+
+Power up the board.

diff --git a/include/configs/starfive-visionfive2.h b/include/configs/starfive-visionfive2.h
new file mode 100644 (file)
index 0000000..93dcc22
--- /dev/null
+++ b/include/configs/starfive-visionfive2.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ * Author:     Yanhong Wang<yanhong.wang@starfivetech.com>
+ *
+ */
+
+#ifndef _STARFIVE_VISIONFIVE2_H
+#define _STARFIVE_VISIONFIVE2_H
+
+#define RISCV_MMODE_TIMERBASE          0x2000000
+#define RISCV_MMODE_TIMER_FREQ         4000000
+#define RISCV_SMODE_TIMER_FREQ         4000000
+
+#define __io
+
+/* Environment options */
+
+#define BOOT_TARGET_DEVICES(func) \
+       func(MMC, mmc, 1) \
+       func(DHCP, dhcp, na)
+
+#include <config_distro_bootcmd.h>
+
+#define TYPE_GUID_SPL          "2E54B353-1271-4842-806F-E436D6AF6985"
+#define TYPE_GUID_UBOOT        "BC13C2FF-59E6-4262-A352-B275FD6F7172"
+#define TYPE_GUID_SYSTEM       "EBD0A0A2-B9E5-4433-87C0-68B6B72699C7"
+
+#define PARTS_DEFAULT                                                  \
+               "name=spl,start=2M,size=2M,type=${type_guid_gpt_loader1};" \
+               "name=uboot,size=4MB,type=${type_guid_gpt_loader2};"            \
+               "name=system,size=-,bootable,type=${type_guid_gpt_system};"
+
+#define CFG_EXTRA_ENV_SETTINGS \
+       "kernel_addr_r=0x40200000\0" \
+       "kernel_comp_addr_r=0x88000000\0" \
+       "kernel_comp_size=0x4000000\0" \
+       "fdt_addr_r=0x46000000\0" \
+       "scriptaddr=0x43900000\0" \
+       "pxefile_addr_r=0x45900000\0" \
+       "ramdisk_addr_r=0x46100000\0" \
+       "type_guid_gpt_loader1=" TYPE_GUID_SPL "\0" \
+       "type_guid_gpt_loader2=" TYPE_GUID_UBOOT "\0" \
+       "type_guid_gpt_system=" TYPE_GUID_SYSTEM "\0" \
+       "partitions=" PARTS_DEFAULT "\0" \
+       "fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
+       BOOTENV
+
+#endif /* _STARFIVE_VISIONFIVE2_H */