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In particular, this board supports a standard bootflow through zsbl->u-boot SPL-> opensbi->u-boot proper->Linux. There are separate defconfigs for building u-boot SPL and u-boot proper - V6 . separate defconfigs for u-boot and SPL . eliminate debug console output . style updates Signed-off-by: Tianrui Wei Signed-off-by: Jonathan Balkind --- arch/riscv/Kconfig | 4 + arch/riscv/dts/Makefile | 1 + arch/riscv/dts/openpiton-riscv64.dts | 153 ++++++++ board/openpiton/riscv64/Kconfig | 42 +++ board/openpiton/riscv64/MAINTAINERS | 8 + board/openpiton/riscv64/Makefile | 5 + board/openpiton/riscv64/openpiton-riscv64.c | 33 ++ configs/openpiton_riscv64_defconfig | 76 ++++ configs/openpiton_riscv64_spl_defconfig | 87 +++++ doc/board/index.rst | 1 + doc/board/openpiton/index.rst | 9 + doc/board/openpiton/riscv64.rst | 376 ++++++++++++++++++++ include/configs/openpiton-riscv64.h | 62 ++++ 13 files changed, 857 insertions(+) create mode 100644 arch/riscv/dts/openpiton-riscv64.dts create mode 100644 board/openpiton/riscv64/Kconfig create mode 100644 board/openpiton/riscv64/MAINTAINERS create mode 100644 board/openpiton/riscv64/Makefile create mode 100644 board/openpiton/riscv64/openpiton-riscv64.c create mode 100644 configs/openpiton_riscv64_defconfig create mode 100644 configs/openpiton_riscv64_spl_defconfig create mode 100644 doc/board/openpiton/index.rst create mode 100644 doc/board/openpiton/riscv64.rst create mode 100644 include/configs/openpiton-riscv64.h diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index b3d7fd84ce..b30c50e8c7 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -26,6 +26,9 @@ config TARGET_SIFIVE_UNMATCHED config TARGET_SIPEED_MAIX bool "Support Sipeed Maix Board" +config TARGET_OPENPITON_RISCV64 + bool "Support riscv cores on OpenPiton SoC" + endchoice config SYS_ICACHE_OFF @@ -60,6 +63,7 @@ source "board/emulation/qemu-riscv/Kconfig" source "board/microchip/mpfs_icicle/Kconfig" source "board/sifive/unleashed/Kconfig" source "board/sifive/unmatched/Kconfig" +source "board/openpiton/riscv64/Kconfig" source "board/sipeed/maix/Kconfig" # platform-specific options below diff --git a/arch/riscv/dts/Makefile b/arch/riscv/dts/Makefile index 7778874831..b6e9166767 100644 --- a/arch/riscv/dts/Makefile +++ b/arch/riscv/dts/Makefile @@ -3,6 +3,7 @@ dtb-$(CONFIG_TARGET_AX25_AE350) += ae350_32.dtb ae350_64.dtb dtb-$(CONFIG_TARGET_MICROCHIP_ICICLE) += microchip-mpfs-icicle-kit.dtb dtb-$(CONFIG_TARGET_QEMU_VIRT) += qemu-virt.dtb +dtb-$(CONFIG_TARGET_OPENPITON_RISCV64) += openpiton-riscv64.dtb dtb-$(CONFIG_TARGET_SIFIVE_UNLEASHED) += hifive-unleashed-a00.dtb dtb-$(CONFIG_TARGET_SIFIVE_UNMATCHED) += hifive-unmatched-a00.dtb dtb-$(CONFIG_TARGET_SIPEED_MAIX) += k210-maix-bit.dtb diff --git a/arch/riscv/dts/openpiton-riscv64.dts b/arch/riscv/dts/openpiton-riscv64.dts new file mode 100644 index 0000000000..45951e1236 --- /dev/null +++ b/arch/riscv/dts/openpiton-riscv64.dts @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* Copyright (c) 2021 Tianrui Wei */ + +/* + * This dts is for a dual core instance of OpenPiton+Ariane built + * to run on a Digilent Genesys 2 FPGA at 66.67MHz. These files + * are automatically generated by the OpenPiton build system and + * this configuration may not be what you need if your configuration + * is different from the below. + */ + +/dts-v1/; + +/ { + #address-cells = <2>; + #size-cells = <2>; + compatible = "openpiton,riscv64"; + + chosen { + stdout-path = "uart0:115200"; + }; + + aliases { + console = &uart0; + serial0 = &uart0; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + timebase-frequency = <520835>; + + CPU0: cpu@0 { + clocks = <&clk0>; + u-boot,dm-spl; + device_type = "cpu"; + reg = <0>; + compatible = "openhwgroup,cva6", "riscv"; + riscv,isa = "rv64imafdc"; + mmu-type = "riscv,sv39"; + tlb-split; + // HLIC - hart local interrupt controller + CPU0_intc: interrupt-controller { + #interrupt-cells = <1>; + interrupt-controller; + compatible = "riscv,cpu-intc"; + }; + }; + + CPU1: cpu@1 { + clocks = <&clk0>; + device_type = "cpu"; + reg = <1>; + compatible = "openhwgroup,cva6", "riscv"; + riscv,isa = "rv64imafdc"; + mmu-type = "riscv,sv39"; + tlb-split; + // HLIC - hart local interrupt controller + CPU1_intc: interrupt-controller { + #interrupt-cells = <1>; + interrupt-controller; + compatible = "riscv,cpu-intc"; + }; + }; + + }; + + clocks { + clk0: osc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <66667000>; + }; + }; + + memory@80000000 { + u-boot,dm-spl; + device_type = "memory"; + reg = < 0x00000000 0x80000000 0x00000000 0x40000000 >; + }; + + soc { + #address-cells = <1>; + #size-cells = <1>; + compatible = "openpiton,chipset", "simple-bus"; + ranges; + + uart0: uart@fff0c2c000 { + compatible = "ns16550", "openpiton,ns16550"; + reg = < 0x000000ff 0xf0c2c000 0x00000000 0x000d4000 >; + interrupt-parent = <&PLIC0>; + interrupts = <1>; + reg-shift = <0>; + // regs are spaced on 8 bit boundary + }; + + eth: ethernet@fff0d00000 { + compatible = "xlnx,xps-ethernetlite-1.00.a", "openpiton,ethernet"; + device_type = "network"; + reg = < 0x000000ff 0xf0d00000 0x00000000 0x00100000 >; + interrupt-parent = <&PLIC0>; + interrupts = <2>; + phy-handle = <&phy0>; + xlnx,duplex = <0x1>; + xlnx,include-global-buffers = <0x1>; + xlnx,include-internal-loopback = <0x0>; + xlnx,include-mdio = <0x1>; + xlnx,rx-ping-pong = <0x1>; + xlnx,s-axi-id-width = <0x1>; + xlnx,tx-ping-pong = <0x1>; + xlnx,use-internal = <0x0>; + axi_ethernetlite_0_mdio: mdio { + #address-cells = <1>; + #size-cells = <0>; + phy0: phy@1 { + compatible = "ethernet-phy-id001C.C915"; + device_type = "ethernet-phy"; + reg = <1>; + }; + }; + }; + + sdhci_0: sdhci@f000000000 { + u-boot,dm-spl; + compatible = "openpiton,piton-mmc", "openpiton,mmc"; + reg = < 0x000000f0 0x00000000 0x00000000 0x00300000 >; + }; + + clint@fff1020000 { + compatible = "sifive,clint0", "openpiton,clint"; + interrupts-extended = < &CPU0_intc 3 + &CPU0_intc 7 + &CPU1_intc 3 + &CPU1_intc 7 >; + reg = < 0x000000ff 0xf1020000 0x00000000 0x000c0000 >; + clocks = <&clk0>; + }; + + PLIC0: plic@fff1100000 { + u-boot,dm-spl; + #interrupt-cells = <1>; + compatible = "sifive,plic-1.0.0", "openpiton,plic"; + interrupt-controller; + interrupts-extended = < &CPU0_intc 11 + &CPU0_intc 9 + &CPU1_intc 11 + &CPU1_intc 9 >; + reg = < 0x000000ff 0xf1100000 0x00000000 0x04000000 >; + riscv,max-priority = <7>; + riscv,ndev = <2>; + }; + }; +}; diff --git a/board/openpiton/riscv64/Kconfig b/board/openpiton/riscv64/Kconfig new file mode 100644 index 0000000000..4ee60098b9 --- /dev/null +++ b/board/openpiton/riscv64/Kconfig @@ -0,0 +1,42 @@ +if TARGET_OPENPITON_RISCV64 + +config SYS_BOARD + default "riscv64" + +config SYS_VENDOR + default "openpiton" + +config SYS_CPU + default "generic" + +config SYS_CONFIG_NAME + default "openpiton-riscv64" + +config SYS_TEXT_BASE + default 0x81000000 if SPL + default 0x80000000 if !RISCV_SMODE + default 0x81000000 if RISCV_SMODE + +config SPL_TEXT_BASE + default 0x82000000 + +config SPL_OPENSBI_LOAD_ADDR + default 0x80000000 + +config BOARD_SPECIFIC_OPTIONS # dummy + def_bool y + select ARCH_EARLY_INIT_R + select SUPPORT_SPL + imply CPU_RISCV + imply RISCV_TIMER if (RISCV_SMODE || SPL_RISCV_SMODE) + imply SIFIVE_CLINT if (RISCV_MMODE || SPL_RISCV_MMODE) + imply CMD_CPU + imply SPL_CPU_SUPPORT + imply SPL_OPENSBI + imply SPL_LOAD_FIT + imply SPL_SMP + imply SPL_MMC + imply SMP + imply SPL_RISCV_MMODE + +endif diff --git a/board/openpiton/riscv64/MAINTAINERS b/board/openpiton/riscv64/MAINTAINERS new file mode 100644 index 0000000000..f91c000c83 --- /dev/null +++ b/board/openpiton/riscv64/MAINTAINERS @@ -0,0 +1,8 @@ +Openpiton BOARD +M: Tianrui Wei +S: Maintained +F: board/openpiton/riscv64/ +F: include/configs/openpiton-riscv64.h +F: configs/openpiton_riscv64_defconfig +F: configs/openpiton_riscv64_spl_defconfig +F: drivers/mmc/piton_mmc.c diff --git a/board/openpiton/riscv64/Makefile b/board/openpiton/riscv64/Makefile new file mode 100644 index 0000000000..3bffa75a9a --- /dev/null +++ b/board/openpiton/riscv64/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2021 Tianrui Wei +# Tianrui Wei +obj-y += openpiton-riscv64.o diff --git a/board/openpiton/riscv64/openpiton-riscv64.c b/board/openpiton/riscv64/openpiton-riscv64.c new file mode 100644 index 0000000000..f2282d1548 --- /dev/null +++ b/board/openpiton/riscv64/openpiton-riscv64.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2019 SiFive, Inc + * Copyright (c) 2021 Tianrui Wei + * + * + * Authors: + * Pragnesh Patel + * Tianrui Wei + */ +#include +#include +#include +#include +#include + +#ifdef CONFIG_SPL +void board_boot_order(u32 *spl_boot_list) +{ + u8 i; + u32 boot_devices[] = { + BOOT_DEVICE_MMC1, + }; + + for (i = 0; i < ARRAY_SIZE(boot_devices); i++) + spl_boot_list[i] = boot_devices[i]; +} +#endif + +int board_init(void) +{ + return 0; +} diff --git a/configs/openpiton_riscv64_defconfig b/configs/openpiton_riscv64_defconfig new file mode 100644 index 0000000000..cd66db2fe5 --- /dev/null +++ b/configs/openpiton_riscv64_defconfig @@ -0,0 +1,76 @@ +CONFIG_RISCV=y +CONFIG_SYS_TEXT_BASE=0x80200000 +CONFIG_NR_DRAM_BANKS=1 +CONFIG_DEFAULT_DEVICE_TREE="openpiton-riscv64" +CONFIG_TARGET_OPENPITON_RISCV64=y +CONFIG_ARCH_RV64I=y +CONFIG_CMODEL_MEDANY=y +CONFIG_RISCV_SMODE=y +CONFIG_OF_BOARD_FIXUP=y +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_ENV_VARS_UBOOT_CONFIG=y +# CONFIG_EXPERT is not set +# CONFIG_LEGACY_IMAGE_FORMAT is not set +# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set +CONFIG_SYS_PROMPT="openpiton$ " +# CONFIG_CMD_CPU is not set +CONFIG_CMD_BOOTZ=y +# CONFIG_BOOTM_NETBSD is not set +# CONFIG_BOOTM_PLAN9 is not set +# CONFIG_BOOTM_RTEMS is not set +# CONFIG_BOOTM_VXWORKS is not set +# CONFIG_CMD_RUN is not set +# CONFIG_CMD_IMI is not set +# CONFIG_CMD_XIMG is not set +# CONFIG_CMD_EXPORTENV is not set +# CONFIG_CMD_IMPORTENV is not set +# CONFIG_CMD_EDITENV is not set +# CONFIG_CMD_SAVEENV is not set +# CONFIG_CMD_CRC32 is not set +CONFIG_CMD_MEMINFO=y +# CONFIG_CMD_LZMADEC is not set +# CONFIG_CMD_UNLZ4 is not set +# CONFIG_CMD_UNZIP is not set +# CONFIG_CMD_FLASH is not set +CONFIG_CMD_GPT=y +# CONFIG_RANDOM_UUID is not set +# CONFIG_CMD_LOADB is not set +# CONFIG_CMD_LOADS is not set +CONFIG_CMD_LSBLK=y +CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y +CONFIG_CMD_READ=y +# CONFIG_CMD_ECHO is not set +# CONFIG_CMD_ITEST is not set +# CONFIG_CMD_SOURCE is not set +# CONFIG_CMD_SETEXPR is not set +# CONFIG_CMD_BLOCK_CACHE is not set +# CONFIG_CMD_DATE is not set +# CONFIG_CMD_SLEEP is not set +CONFIG_CMD_SYSBOOT=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_FAT=y +CONFIG_CMD_FS_GENERIC=y +# CONFIG_DOS_PARTITION is not set +CONFIG_OF_EMBED=y +# CONFIG_NET is not set +CONFIG_CPU=y +CONFIG_MMC=y +# CONFIG_MMC_WRITE is not set +# CONFIG_MMC_HW_PARTITIONING is not set +# CONFIG_MMC_VERBOSE is not set +CONFIG_MMC_PITON=y +CONFIG_RAM=y +# CONFIG_RAM_SIFIVE is not set +CONFIG_DM_RTC=y +CONFIG_SYS_NS16550=y +CONFIG_FS_SQUASHFS=y +CONFIG_SPL_TINY_MEMSET=y +CONFIG_TPL_TINY_MEMSET=y +CONFIG_SHA1=y +CONFIG_SHA256=y +CONFIG_MD5=y +CONFIG_GETOPT=y +CONFIG_OF_LIBFDT_OVERLAY=y +CONFIG_SPL_OF_LIBFDT=y +# CONFIG_EFI_LOADER is not set diff --git a/configs/openpiton_riscv64_spl_defconfig b/configs/openpiton_riscv64_spl_defconfig new file mode 100644 index 0000000000..f681a50fd4 --- /dev/null +++ b/configs/openpiton_riscv64_spl_defconfig @@ -0,0 +1,87 @@ +CONFIG_RISCV=y +CONFIG_SYS_TEXT_BASE=0x80000000 +CONFIG_NR_DRAM_BANKS=1 +CONFIG_SPL_MMC_SUPPORT=y +CONFIG_SPL_SYS_MALLOC_F_LEN=0x100000 +CONFIG_SPL=y +CONFIG_SPL_LIBDISK_SUPPORT=y +CONFIG_SPL_PAYLOAD="" +CONFIG_DEFAULT_DEVICE_TREE="openpiton-riscv64" +CONFIG_TARGET_OPENPITON_RISCV64=y +CONFIG_NR_CPUS=32 +CONFIG_ARCH_RV64I=y +CONFIG_CMODEL_MEDANY=y +CONFIG_RISCV_SMODE=y +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_ENV_VARS_UBOOT_CONFIG=y +# CONFIG_EXPERT is not set +# CONFIG_LEGACY_IMAGE_FORMAT is not set +# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set +# CONFIG_SPL_LEGACY_IMAGE_SUPPORT is not set +CONFIG_SPL_SYS_MALLOC_SIMPLE=y +CONFIG_SPL_SEPARATE_BSS=y +# CONFIG_SPL_BANNER_PRINT is not set +CONFIG_SPL_FS_EXT4=y +CONFIG_SPL_RTC_SUPPORT=y +# CONFIG_SPL_OPENSBI is not set +CONFIG_SYS_PROMPT="openpiton$ " +# CONFIG_CMD_CPU is not set +CONFIG_CMD_BOOTZ=y +# CONFIG_BOOTM_NETBSD is not set +# CONFIG_BOOTM_PLAN9 is not set +# CONFIG_BOOTM_RTEMS is not set +# CONFIG_BOOTM_VXWORKS is not set +# CONFIG_CMD_RUN is not set +# CONFIG_CMD_IMI is not set +# CONFIG_CMD_XIMG is not set +# CONFIG_CMD_EXPORTENV is not set +# CONFIG_CMD_IMPORTENV is not set +# CONFIG_CMD_EDITENV is not set +# CONFIG_CMD_SAVEENV is not set +# CONFIG_CMD_CRC32 is not set +CONFIG_CMD_MEMINFO=y +# CONFIG_CMD_LZMADEC is not set +# CONFIG_CMD_UNLZ4 is not set +# CONFIG_CMD_UNZIP is not set +# CONFIG_CMD_FLASH is not set +CONFIG_CMD_GPT=y +# CONFIG_RANDOM_UUID is not set +# CONFIG_CMD_LOADB is not set +# CONFIG_CMD_LOADS is not set +CONFIG_CMD_LSBLK=y +CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y +CONFIG_CMD_READ=y +# CONFIG_CMD_ECHO is not set +# CONFIG_CMD_ITEST is not set +# CONFIG_CMD_SOURCE is not set +# CONFIG_CMD_SETEXPR is not set +# CONFIG_CMD_BLOCK_CACHE is not set +# CONFIG_CMD_DATE is not set +# CONFIG_CMD_SLEEP is not set +CONFIG_CMD_SYSBOOT=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_FAT=y +CONFIG_CMD_FS_GENERIC=y +# CONFIG_DOS_PARTITION is not set +# CONFIG_SPL_PARTITION_UUIDS is not set +# CONFIG_NET is not set +CONFIG_CPU=y +CONFIG_MMC=y +# CONFIG_MMC_WRITE is not set +# CONFIG_MMC_HW_PARTITIONING is not set +# CONFIG_MMC_VERBOSE is not set +CONFIG_MMC_PITON=y +CONFIG_RAM=y +# CONFIG_RAM_SIFIVE is not set +CONFIG_DM_RTC=y +CONFIG_SYS_NS16550=y +CONFIG_FS_SQUASHFS=y +CONFIG_SPL_TINY_MEMSET=y +CONFIG_TPL_TINY_MEMSET=y +CONFIG_SHA1=y +CONFIG_SHA256=y +CONFIG_MD5=y +CONFIG_GETOPT=y +CONFIG_OF_LIBFDT_OVERLAY=y +# CONFIG_EFI_LOADER is not set diff --git a/doc/board/index.rst b/doc/board/index.rst index a70d2de19d..6b1e246217 100644 --- a/doc/board/index.rst +++ b/doc/board/index.rst @@ -18,6 +18,7 @@ Board-specific doc intel/index kontron/index microchip/index + openpiton/index rockchip/index sifive/index sipeed/index diff --git a/doc/board/openpiton/index.rst b/doc/board/openpiton/index.rst new file mode 100644 index 0000000000..c469102c4b --- /dev/null +++ b/doc/board/openpiton/index.rst @@ -0,0 +1,9 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +OpenPiton +========= + +.. toctree:: + :maxdepth: 2 + + riscv64 diff --git a/doc/board/openpiton/riscv64.rst b/doc/board/openpiton/riscv64.rst new file mode 100644 index 0000000000..ed7d59db2c --- /dev/null +++ b/doc/board/openpiton/riscv64.rst @@ -0,0 +1,376 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Openpiton RISC-V SoC +==================== + +OpenPiton RISC-V SoC +-------------------- +OpenPiton is an open source, manycore processor and research platform. It is a +tiled manycore framework scalable from one to 1/2 billion cores. It supports a +number of ISAs including RISC-V with its P-Mesh cache coherence protocol and +networks on chip. It is highly configurable in both core and uncore components. +OpenPiton has been verified in both ASIC and multiple Xilinx FPGA prototypes +running full-stack Debian linux. + +RISCV-V Standard Bootflow +------------------------- +Currently, OpenPiton implements RISC-V standard bootflow in the following steps +mover.S -> u-boot-spl -> opensbi -> u-boot -> Linux +This board supports S-mode u-boot as well as M-mode SPL + +Building OpenPition +--------------------- +If you'd like to build OpenPiton, please go to OpenPiton github repo +(at https://github.com/PrincetonUniversity/openpiton) to build from the latest +changes + +Building Images +--------------------------- + +SPL +--- + +1. Add the RISC-V toolchain to your PATH. +2. Setup ARCH & cross compilation environment variable: + +.. code-block:: none + + export CROSS_COMPILE= + export ARCH=riscv + +3. make openpiton_riscv64_spl_defconfig +4. make + +U-Boot +------ + +1. Add the RISC-V toolchain to your PATH. +2. Setup ARCH & cross compilation environment variable: + +.. code-block:: none + + export CROSS_COMPILE= + export ARCH=riscv + +3. make openpiton_riscv64_defconfig +4. make + + +opensbi +------- + +1. Add the RISC-V toolchain to your PATH. +2. Setup ARCH & cross compilation environment variable: + +.. code-block:: none + + export CROSS_COMPILE= + export ARCH=riscv + +3. Go to OpenSBI directory +4. make PLATFORM=fpga/openpiton FW_PAYLOAD_PATH= + + +Using fw_payload.bin with linux +------------------------------- +Put the generated fw_payload.bin into the /boot directory on the root filesystem, +plug in the SD card, then flash the bitstream. Linux will boot automatically. + +Booting +------- +Once you plugin the sdcard and power up, you should see the U-Boot prompt. + +Sample Dual-core Debian boot log from OpenPiton +----------------------------------------------- + +.. code-block:: none + + Trying to boot from MMC1 + + OpenSBI v0.9-5-gd06cb61 + ____ _____ ____ _____ + / __ \ / ____| _ \_ _| + | | | |_ __ ___ _ __ | (___ | |_) || | + | | | | '_ \ / _ \ '_ \ \___ \| _ < | | + | |__| | |_) | __/ | | |____) | |_) || |_ + \____/| .__/ \___|_| |_|_____/|____/_____| + | | + |_| + + Platform Name : OPENPITON RISC-V + Platform Features : timer,mfdeleg + Platform HART Count : 3 + Firmware Base : 0x80000000 + Firmware Size : 104 KB + Runtime SBI Version : 0.2 + + Domain0 Name : root + Domain0 Boot HART : 0 + Domain0 HARTs : 0*,1*,2* + Domain0 Region00 : 0x0000000080000000-0x000000008001ffff () + Domain0 Region01 : 0x0000000000000000-0xffffffffffffffff (R,W,X) + Domain0 Next Address : 0x0000000080200000 + Domain0 Next Arg1 : 0x0000000082200000 + Domain0 Next Mode : S-mode + Domain0 SysReset : yes + + Boot HART ID : 0 + Boot HART Domain : root + Boot HART ISA : rv64imafdcsu + Boot HART Features : scounteren,mcounteren + Boot HART PMP Count : 0 + Boot HART PMP Granularity : 0 + Boot HART PMP Address Bits: 0 + Boot HART MHPM Count : 0 + Boot HART MHPM Count : 0 + Boot HART MIDELEG : 0x0000000000000222 + Boot HART MEDELEG : 0x000000000000b109 + + + U-Boot 2021.01+ (Jun 12 2021 - 10:31:34 +0800) + + DRAM: 1 GiB + MMC: sdhci@f000000000: 0 (eMMC) + In: uart@fff0c2c000 + Out: uart@fff0c2c000 + Err: uart@fff0c2c000 + Hit any key to stop autoboot: 0 + 6492992 bytes read in 5310 ms (1.2 MiB/s) + ## Flattened Device Tree blob at 86000000 + Booting using the fdt blob at 0x86000000 + Loading Device Tree to 00000000bfffa000, end 00000000bffff007 ... OK + + Starting kernel ... + + [ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000 + [ 0.000000] Linux version 5.6.0-rc4-gb9d34f7e294d-dirty + [ 0.000000] earlycon: sbi0 at I/O port 0x0 (options '') + [ 0.000000] printk: bootconsole [sbi0] enabled + [ 0.000000] Zone ranges: + [ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000bfffffff] + [ 0.000000] Normal empty + [ 0.000000] Movable zone start for each node + [ 0.000000] Early memory node ranges + [ 0.000000] node 0: [mem 0x0000000080200000-0x00000000bfffffff] + [ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x00000000bfffffff] + [ 0.000000] On node 0 totalpages: 261632 + [ 0.000000] DMA32 zone: 4088 pages used for memmap + [ 0.000000] DMA32 zone: 0 pages reserved + [ 0.000000] DMA32 zone: 261632 pages, LIFO batch:63 + [ 0.000000] software IO TLB: mapped [mem 0xbaffa000-0xbeffa000] (64MB) + [ 0.000000] SBI specification v0.2 detected + [ 0.000000] SBI implementation ID=0x1 Version=0x9 + [ 0.000000] SBI v0.2 TIME extension detected + [ 0.000000] SBI v0.2 IPI extension detected + [ 0.000000] SBI v0.2 RFENCE extension detected + [ 0.000000] SBI v0.2 HSM extension detected + [ 0.000000] elf_hwcap is 0x112d + [ 0.000000] percpu: Embedded 16 pages/cpu s25368 r8192 d31976 u65536 + [ 0.000000] pcpu-alloc: s25368 r8192 d31976 u65536 alloc=16*4096 + [ 0.000000] pcpu-alloc: [0] 0 + [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 257544 + [ 0.000000] Kernel command line: earlycon=sbi root=/dev/piton_sd1 + [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear) + [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear) + [ 0.000000] Sorting __ex_table... + [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off + [ 0.000000] Memory: 956252K/1046528K available (4357K kernel code, 286K rwdata, 1200K rodata, 168K init, 311K bss, 90276K re) + [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 + [ 0.000000] rcu: Hierarchical RCU implementation. + [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1. + [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. + [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 + [ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0 + [ 0.000000] plic: mapped 2 interrupts with 1 handlers for 2 contexts. + [ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [0] + [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1ec037a6a, max_idle_ns: 7052723236599 ns + [ 0.000138] sched_clock: 64 bits at 520kHz, resolution 1919ns, wraps every 4398046510738ns + [ 0.009429] printk: console [hvc0] enabled + [ 0.009429] printk: console [hvc0] enabled + [ 0.017850] printk: bootconsole [sbi0] disabled + [ 0.017850] printk: bootconsole [sbi0] disabled + [ 0.028029] Calibrating delay loop (skipped), value calculated using timer frequency.. 1.04 BogoMIPS (lpj=5208) + [ 0.038753] pid_max: default: 32768 minimum: 301 + [ 0.050248] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear) + [ 0.058661] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear) + [ 0.069359] *** VALIDATE tmpfs *** + [ 0.089093] *** VALIDATE proc *** + [ 0.101135] *** VALIDATE cgroup *** + [ 0.105019] *** VALIDATE cgroup2 *** + [ 0.144310] rcu: Hierarchical SRCU implementation. + [ 0.162836] smp: Bringing up secondary CPUs ... + [ 0.167736] smp: Brought up 1 node, 1 CPU + [ 0.185982] devtmpfs: initialized + [ 0.216237] random: get_random_u32 called from bucket_table_alloc.isra.25+0x4e/0x15c with crng_init=0 + [ 0.236026] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns + [ 0.246916] futex hash table entries: 256 (order: 2, 16384 bytes, linear) + [ 0.266994] NET: Registered protocol family 16 + [ 0.763362] clocksource: Switched to clocksource riscv_clocksource + [ 0.770122] *** VALIDATE bpf *** + [ 0.782837] *** VALIDATE ramfs *** + [ 0.829997] NET: Registered protocol family 2 + [ 0.853577] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear) + [ 0.864085] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear) + [ 0.875373] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear) + [ 0.887958] TCP: Hash tables configured (established 8192 bind 8192) + [ 0.902149] UDP hash table entries: 512 (order: 2, 16384 bytes, linear) + [ 0.909904] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear) + [ 0.924809] NET: Registered protocol family 1 + [ 0.948605] RPC: Registered named UNIX socket transport module. + [ 0.956003] RPC: Registered udp transport module. + [ 0.961565] RPC: Registered tcp transport module. + [ 0.966432] RPC: Registered tcp NFSv4.1 backchannel transport module. + [ 0.987180] Initialise system trusted keyrings + [ 0.998953] workingset: timestamp_bits=46 max_order=18 bucket_order=0 + [ 1.323977] *** VALIDATE nfs *** + [ 1.328520] *** VALIDATE nfs4 *** + [ 1.334422] NFS: Registering the id_resolver key type + [ 1.340148] Key type id_resolver registered + [ 1.345280] Key type id_legacy registered + [ 1.349820] nfs4filelayout_init: NFSv4 File Layout Driver Registering... + [ 1.357610] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). + [ 1.866909] Key type asymmetric registered + [ 1.872460] Asymmetric key parser 'x509' registered + [ 1.878750] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254) + [ 1.887480] io scheduler mq-deadline registered + [ 1.892864] io scheduler kyber registered + [ 3.905595] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled + [ 3.954332] fff0c2c000.uart: ttyS0 at MMIO 0xfff0c2c000 (irq = 1, base_baud = 4166687) is a 16550 + [ 4.254794] loop: module loaded + [ 4.258269] piton_sd:v1.0 Apr 26, 2019 + [ 4.258269] + [ 4.265170] gpt partition table header: + [ 4.265283] signature: 5452415020494645 + [ 4.269258] revision: 10000 + [ 4.273746] size: 5c + [ 4.276659] crc_header: 26b42404 + [ 4.278911] reserved: 0 + [ 4.282730] current lba: 1 + [ 4.285311] backup lda: 3b723ff + [ 4.288093] partition entries lba: 2 + [ 4.291835] number partition entries: 80 + [ 4.295529] size partition entries: 80 + [ 9.473253] piton_sd: piton_sd1 + [ 10.099676] libphy: Fixed MDIO Bus: probed + [ 10.148782] NET: Registered protocol family 10 + [ 10.183418] Segment Routing with IPv6 + [ 10.189384] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver + [ 10.214449] NET: Registered protocol family 17 + [ 10.227413] Key type dns_resolver registered + [ 10.240561] Loading compiled-in X.509 certificates + [ 10.465264] EXT4-fs (piton_sd1): mounted filesystem with ordered data mode. Opts: (null) + [ 10.475922] VFS: Mounted root (ext4 filesystem) readonly on device 254:1. + [ 10.551865] devtmpfs: mounted + [ 10.562744] Freeing unused kernel memory: 168K + [ 10.567450] This architecture does not have kernel memory protection. + [ 10.574688] Run /sbin/init as init process + [ 10.578916] with arguments: + [ 10.582489] /sbin/init + [ 10.585312] with environment: + [ 10.588518] HOME=/ + [ 10.591459] TERM=linux + [ 18.154373] systemd[1]: System time before build time, advancing clock. + [ 18.565415] systemd[1]: systemd 238 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIB) + [ 18.596359] systemd[1]: Detected architecture riscv64. + + Welcome to Debian GNU/Linux buster/sid! + + [ 18.797150] systemd[1]: Set hostname to . + [ 31.609244] random: systemd: uninitialized urandom read (16 bytes read) + [ 31.630366] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. + [ OK ] Listening on /dev/initctl Compatibility Named Pipe. + [ 31.674820] random: systemd: uninitialized urandom read (16 bytes read) + [ 31.806800] systemd[1]: Created slice system-serial\x2dgetty.slice. + [ OK ] Created slice system-serial\x2dgetty.slice. + [ 31.839855] random: systemd: uninitialized urandom read (16 bytes read) + [ 31.850670] systemd[1]: Reached target Slices. + [ OK ] Reached target Slices. + [ 32.128005] systemd[1]: Reached target Swap. + [ OK ] Reached target Swap. + [ 32.180337] systemd[1]: Listening on Journal Socket. + [ OK ] Listening on Journal Socket. + [ 32.416448] systemd[1]: Mounting Kernel Debug File System... + Mounting Kernel Debug File System... + [ 32.937934] systemd[1]: Starting Remount Root and Kernel File Systems... + Starting Remount Root and Kernel File Systems... + [ 33.117472] urandom_read: 4 callbacks suppressed + [ 33.117645] random: systemd: uninitialized urandom read (16 bytes read) + [ 33.214868] systemd[1]: Started Forward Password Requests to Wall Directory Watch. + [ OK ] Started Forward Password Requests to Wall Directory Watch. + [ 33.366745] random: systemd: uninitialized urandom read (16 bytes read) + [ 33.453262] systemd[1]: Listening on Journal Socket (/dev/log). + [ OK ] Listening on Journal Socket (/dev/log). + [ 33.627020] random: systemd: uninitialized urandom read (16 bytes read) + [ 34.029973] systemd[1]: Starting Load Kernel Modules... + Starting Load Kernel Modules... + [ OK ] Created slice system-getty.slice. + [ OK ] Started Dispatch Password Requests to Console Directory Watch. + [ OK ] Reached target Local Encrypted Volumes. + [ OK ] Reached target Paths. + [ OK ] Reached target Remote File Systems. + [ OK ] Listening on udev Kernel Socket. + [ OK ] Listening on udev Control Socket. + [ OK ] Reached target Sockets. + Starting udev Coldplug all Devices... + Starting Journal Service... + [ 37.108761] systemd[1]: Starting Create Static Device Nodes in /dev... + Starting Create Static Device Nodes in /dev... + [ 37.941929] systemd[1]: Mounted Kernel Debug File System. + [ OK ] Mounted Kernel Debug File System. + [ 38.463855] systemd[1]: Started Remount Root and Kernel File Systems. + [ OK ] Started Remount Root and Kernel File Systems. + [ 39.614728] systemd[1]: Started Load Kernel Modules. + [ OK ] Started Load Kernel Modules. + [ 40.794332] systemd[1]: Starting Apply Kernel Variables... + Starting Apply Kernel Variables... + [ 41.928338] systemd[1]: Starting Load/Save Random Seed... + Starting Load/Save Random Seed... + [ 43.494757] systemd[1]: Started Create Static Device Nodes in /dev. + [ OK ] Started Create Static Device Nodes in /dev. + [ 44.795372] systemd[1]: Starting udev Kernel Device Manager... + Starting udev Kernel Device Manager... + [ 45.043065] systemd[1]: Reached target Local File Systems (Pre). + [ OK ] Reached target Local File Systems (Pre). + [ 45.224716] systemd[1]: Reached target Local File Systems. + [ OK ] Reached target Local File Systems. + [ 46.036491] systemd[1]: Started Apply Kernel Variables. + [ OK ] Started Apply Kernel Variables. + [ 46.947879] systemd[1]: Started Load/Save Random Seed. + [ OK ] Started Load/Save Random Seed. + [ 47.910242] systemd[1]: Starting Raise network interfaces... + Starting Raise network interfaces... + [ 48.119915] systemd[1]: Started Journal Service. + [ OK ] Started Journal Service. + Starting Flush Journal to Persistent Storage... + [ OK ] Started udev Kernel Device Manager. + [ 55.369915] systemd-journald[88]: Received request to flush runtime journal from PID 1 + [ OK ] Started Flush Journal to Persistent Storage. + Starting Create Volatile Files and Directories... + [ OK ] Started Raise network interfaces. + [ OK ] Reached target Network. + [FAILED] Failed to start Create Volatile Files and Directories. + See 'systemctl status systemd-tmpfiles-setup.service' for details. + Starting Update UTMP about System Boot/Shutdown... + [FAILED] Failed to start Network Time Synchronization. + See 'systemctl status systemd-timesyncd.service' for details. + [ OK ] Reached target System Time Synchronized. + [ OK ] Stopped Network Time Synchronization. + [ OK ] Started udev Coldplug all Devices. + [ OK ] Found device /dev/hvc0. + [ OK ] Reached target System Initialization. + [ OK ] Reached target Basic System. + [ OK ] Started Regular background program processing daemon. + [ OK ] Started Daily Cleanup of Temporary Directories. + Starting Permit User Sessions... + [ OK ] Started Daily apt download activities. + [ OK ] Started Daily apt upgrade and clean activities. + [ OK ] Reached target Timers. + [ OK ] Started Permit User Sessions. + [ OK ] Started Serial Getty on hvc0. + [ OK ] Reached target Login Prompts. + [ OK ] Reached target Multi-User System. + [ OK ] Reached target Graphical Interface. + + Debian GNU/Linux buster/sid openpiton hvc0 + + openpiton login: diff --git a/include/configs/openpiton-riscv64.h b/include/configs/openpiton-riscv64.h new file mode 100644 index 0000000000..9ab7125552 --- /dev/null +++ b/include/configs/openpiton-riscv64.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2019 Western Digital Corporation or its affiliates. + * Copyright (c) 2021 Tianrui Wei + * + * Authors: + * Anup Patel + * Tianrui Wei + */ + +#ifndef __OPENPITON_RISCV64_CONFIG_H +#define __OPENPITON_RISCV64_CONFIG_H + +#include + +/* Environment options */ +#define CONFIG_SYS_SDRAM_BASE 0x80000000 +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_32M) +#define CONFIG_SYS_LOAD_ADDR 0x87000000 +#define CONFIG_SYS_MALLOC_LEN SZ_256M +#define CONFIG_SYS_BOOTM_LEN SZ_256M + +#ifdef CONFIG_SPL +#define CONFIG_SPL_MAX_SIZE 0x00100000 +#define CONFIG_SPL_BSS_SDRAM_OFFSET 0x02000000 +#define CONFIG_SPL_BSS_START_ADDR (CONFIG_SYS_SDRAM_BASE + CONFIG_SPL_BSS_SDRAM_OFFSET) +#define CONFIG_SPL_BSS_MAX_SIZE 0x00100000 +#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ + CONFIG_SPL_BSS_MAX_SIZE) +#define CONFIG_SYS_SPL_MALLOC_SIZE 0x0100000 +#define CONFIG_SPL_STACK (0x80000000 + 0x04000000 - \ + GENERATED_GBL_DATA_SIZE) + +#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "boot/fw_payload.bin" +#define CONFIG_SPL_GD_ADDR 0x85000000 +#endif + +/* ------------------------------------------------- + * Environment + */ +//Disable persistent environment variable storage +#define CONFIG_ENV_IS_NOWHERE 1 + +/* --------------------------------------------------------------------- + * Board boot configuration + */ + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "fdt_addr_r=0x86000000\0" \ + "kernel_addr_r=0x80200000\0" \ + "image=boot/Image\0" \ + "mmcdev=0\0" \ 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ycliang@andestech.com, rick@andestech.com, peng.fan@nxp.com, jh80.chung@samsung.com, jbalkind@ucsb.edu, seanga2@gmail.com, bmeng.cn@gmail.com Subject: [RESEND PATCH v6 2/2] mmc: openpiton: add piton_mmc driver Date: Sun, 13 Jun 2021 01:16:50 +0800 Message-ID: X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210612171650.7247-1-tianrui-wei@outlook.com> References: <20210612171650.7247-1-tianrui-wei@outlook.com> X-TMN: [pudrKJ900plXMa7h15GFrfrWAVQ6g0SY] X-ClientProxiedBy: HK2PR04CA0049.apcprd04.prod.outlook.com (2603:1096:202:14::17) To SY4PR01MB6798.ausprd01.prod.outlook.com (2603:10c6:10:137::12) X-Microsoft-Original-Message-ID: <20210612171650.7247-3-tianrui-wei@outlook.com> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from eva-virtual-machine.localdomain (180.160.51.170) by HK2PR04CA0049.apcprd04.prod.outlook.com (2603:1096:202:14::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.21 via Frontend 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f8657e77-6129-4935-f8ee-08d92dc5e772 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2021 17:17:06.8099 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-AuthSource: SG2APC01FT039.eop-APC01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: TY2PR03MB4016 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean This commit adds support to piton_mmc driver for OpenPiton-riscv64 In particular, this driver - V6 . change type of address . move declarations ahead . loop style update Signed-off-by: Tianrui Wei Signed-off-by: Jonathan Balkind --- drivers/mmc/Kconfig | 9 +++ drivers/mmc/Makefile | 1 + drivers/mmc/piton_mmc.c | 169 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 179 insertions(+) create mode 100644 drivers/mmc/piton_mmc.c diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 8901456967..096d6a930c 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -727,6 +727,15 @@ config MMC_SUNXI_HAS_MODE_SWITCH bool depends on MMC_SUNXI +config MMC_PITON + bool "MMC support for OpenPiton SoC" + depends on DM_MMC && BLK + help + This selects support for the SD host controller on + OpenPiton SoC. Note that this SD controller directly + exposes the contents of the SD card as memory mapped, + so there is no manual configuration required + config GENERIC_ATMEL_MCI bool "Atmel Multimedia Card Interface support" depends on DM_MMC && BLK && ARCH_AT91 diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 89d6af3db3..cc08b41d0d 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -72,6 +72,7 @@ obj-$(CONFIG_MMC_SDHCI_XENON) += xenon_sdhci.o obj-$(CONFIG_MMC_SDHCI_ZYNQ) += zynq_sdhci.o obj-$(CONFIG_MMC_SUNXI) += sunxi_mmc.o +obj-$(CONFIG_MMC_PITON) += piton_mmc.o obj-$(CONFIG_MMC_UNIPHIER) += tmio-common.o uniphier-sd.o obj-$(CONFIG_RENESAS_SDHI) += tmio-common.o renesas-sdhi.o obj-$(CONFIG_MMC_BCM2835) += bcm2835_sdhost.o diff --git a/drivers/mmc/piton_mmc.c b/drivers/mmc/piton_mmc.c new file mode 100644 index 0000000000..32671d1a89 --- /dev/null +++ b/drivers/mmc/piton_mmc.c @@ -0,0 +1,169 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2009 SAMSUNG Electronics + * Minkyu Kang + * Jaehoon Chung + * Portions Copyright 2011-2019 NVIDIA Corporation + * Portions Copyright 2021 Tianrui Wei + * This file is adapted from tegra_mmc.c + * Tianrui Wei + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct piton_mmc_plat { + struct mmc_config cfg; + struct mmc mmc; +}; + +struct piton_mmc_priv { + void __iomem *piton_mmc_base_addr; /* peripheral id */ +}; + +/* + * see mmc_read_blocks to see how it is used. + * start block is hidden at cmd->arg + * also, initialize the block size at init + */ +static int piton_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, + struct mmc_data *data) +{ + /* check first if this is a pure command */ + if (!data) + return 0; + + struct piton_mmc_priv *priv = dev_get_priv(dev); + u32 *buff, *start_addr; + size_t byte_cnt, start_block; + + buff = (u32 *)data->dest; + start_block = cmd->cmdarg; + start_addr = priv->piton_mmc_base_addr + start_block; + + /* if there is a read */ + if (data->flags & MMC_DATA_READ) { + for (byte_cnt = data->blocks * data->blocksize; byte_cnt; + byte_cnt -= sizeof(u32)) { + *buff++ = readl(start_addr++); + } + } else { + return -ENOSYS; + } + + return 0; +} + +static int piton_mmc_ofdata_to_platdata(struct udevice *dev) +{ + struct piton_mmc_priv *priv = dev_get_priv(dev); + struct piton_mmc_plat *plat = dev_get_platdata(dev); + struct mmc_config *cfg; + struct mmc *mmc; + /* fill in device description */ + struct blk_desc *bdesc; + + priv->piton_mmc_base_addr = (void *)dev_read_addr(dev); + cfg = &plat->cfg; + cfg->name = "PITON MMC"; + cfg->host_caps = MMC_MODE_8BIT; + cfg->f_max = 100000; + cfg->f_min = 400000; + cfg->voltages = MMC_VDD_21_22; + + mmc = &plat->mmc; + mmc->read_bl_len = MMC_MAX_BLOCK_LEN; + mmc->capacity_user = 0x100000000; + mmc->capacity_user *= mmc->read_bl_len; + mmc->capacity_boot = 0; + mmc->capacity_rpmb = 0; + for (int i = 0; i < 4; i++) + mmc->capacity_gp[i] = 0; + mmc->capacity = 0x2000000000ULL; + mmc->has_init = 1; + + bdesc = mmc_get_blk_desc(mmc); + bdesc->lun = 0; + bdesc->hwpart = 0; + bdesc->type = 0; + bdesc->blksz = mmc->read_bl_len; + bdesc->log2blksz = LOG2(bdesc->blksz); + bdesc->lba = lldiv(mmc->capacity, mmc->read_bl_len); + + return 0; +} + +/* test if the micro sd card is present + * always return 1, which means present + */ +static int piton_mmc_getcd(struct udevice *dev) +{ + /* + * always return 1 + */ + return 1; +} + +/* dummy function, piton_mmc don't need initialization + * in hw + */ +static const struct dm_mmc_ops piton_mmc_ops = { + .send_cmd = piton_mmc_send_cmd, + .get_cd = piton_mmc_getcd, +}; + +static int piton_mmc_probe(struct udevice *dev) +{ + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); + struct piton_mmc_plat *plat = dev_get_platdata(dev); + struct mmc_config *cfg = &plat->cfg; + + cfg->name = dev->name; + upriv->mmc = &plat->mmc; + upriv->mmc->has_init = 1; + upriv->mmc->capacity = 0x2000000000ULL; + upriv->mmc->read_bl_len = MMC_MAX_BLOCK_LEN; + return 0; +} + +static int piton_mmc_bind(struct udevice *dev) +{ + struct piton_mmc_plat *plat = dev_get_platdata(dev); + struct mmc_config *cfg = &plat->cfg; + + cfg->name = dev->name; + cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS | MMC_MODE_8BIT; + cfg->voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34; + cfg->f_min = 1000000; + cfg->f_max = 52000000; + cfg->b_max = U32_MAX; + + return mmc_bind(dev, &plat->mmc, cfg); +} + +static const struct udevice_id piton_mmc_ids[] = { + {.compatible = "openpiton,piton-mmc"}, + {/* sentinel */} +}; + +U_BOOT_DRIVER(piton_mmc_drv) = { + .name = "piton_mmc", + .id = UCLASS_MMC, + .of_match = piton_mmc_ids, + .ofdata_to_platdata = piton_mmc_ofdata_to_platdata, + .bind = piton_mmc_bind, + .probe = piton_mmc_probe, + .ops = &piton_mmc_ops, + .platdata_auto_alloc_size = sizeof(struct piton_mmc_plat), + .priv_auto_alloc_size = sizeof(struct piton_mmc_priv), +};