Yixun Lan wrote: > From: Yangyu Chen <cyy@xxxxxxxxxxxx> > > Banana Pi BPI-F3 motherboard is powered by SpacemiT K1[1]. > > Key features: > - 4 cores per cluster, 2 clusters on chip > - UART IP is Intel XScale UART > > Some key considerations: > - ISA string is inferred from vendor documentation[2] > - Cluster topology is inferred from datasheet[1] and L2 in vendor dts[3] > - No coherent DMA on this board > Inferred by taking vendor ethernet and MMC drivers to the mainline > kernel. Without dma-noncoherent in soc node, the driver fails. > - No cache nodes now > The parameters from vendor dts are likely to be wrong. It has 512 > sets for a 32KiB L1 Cache. In this case, each set is 64B in size. > When the size of the cache line is 64B, it is a directly mapped > cache rather than a set-associative cache, the latter is commonly > used. Thus, I didn't use the parameters from vendor dts. > > Currently only support booting into console with only uart, other > features will be added soon later. > > [1] https://docs.banana-pi.org/en/BPI-F3/SpacemiT_K1_datasheet > [2] https://developer.spacemit.com/#/documentation?token=BWbGwbx7liGW21kq9lucSA6Vnpb > [3] https://gitee.com/bianbu-linux/linux-6.1/blob/bl-v1.0.y/arch/riscv/boot/dts/spacemit/k1-x.dtsi > > Signed-off-by: Yangyu Chen <cyy@xxxxxxxxxxxx> > Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx> > --- > arch/riscv/boot/dts/spacemit/k1.dtsi | 378 +++++++++++++++++++++++++++++++++++ > 1 file changed, 378 insertions(+) > > diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi > new file mode 100644 > index 0000000000000..a46149b0b9ff8 > --- /dev/null > +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi > @@ -0,0 +1,378 @@ > +// SPDX-License-Identifier: GPL-2.0 OR MIT > +/* > + * Copyright (C) 2024 Yangyu Chen <cyy@xxxxxxxxxxxx> > + */ > + > +/dts-v1/; > +/ { > + #address-cells = <2>; > + #size-cells = <2>; > + model = "SpacemiT K1"; > + compatible = "spacemit,k1"; > + > + aliases { > + serial0 = &uart0; > + serial1 = &uart2; > + serial2 = &uart3; > + serial3 = &uart4; > + serial4 = &uart5; > + serial5 = &uart6; > + serial6 = &uart7; > + serial7 = &uart8; > + serial8 = &uart9; > + }; > + > + cpus { > + #address-cells = <1>; > + #size-cells = <0>; > + timebase-frequency = <24000000>; > + > + cpu-map { > + cluster0 { > + core0 { > + cpu = <&cpu_0>; > + }; > + core1 { > + cpu = <&cpu_1>; > + }; > + core2 { > + cpu = <&cpu_2>; > + }; > + core3 { > + cpu = <&cpu_3>; > + }; > + }; > + > + cluster1 { > + core0 { > + cpu = <&cpu_4>; > + }; > + core1 { > + cpu = <&cpu_5>; > + }; > + core2 { > + cpu = <&cpu_6>; > + }; > + core3 { > + cpu = <&cpu_7>; > + }; > + }; > + }; > + > + cpu_0: cpu@0 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <0>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu0_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_1: cpu@1 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <1>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu1_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_2: cpu@2 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <2>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu2_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_3: cpu@3 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <3>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu3_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_4: cpu@4 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <4>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu4_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_5: cpu@5 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <5>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu5_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_6: cpu@6 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <6>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu6_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + cpu_7: cpu@7 { > + compatible = "spacemit,x60", "riscv"; > + device_type = "cpu"; > + reg = <7>; > + riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zicntr_zicond_zicsr_zifencei_zihintpause_zihpm_zfh_zba_zbb_zbc_zbs_zkt_zvfh_zvkt_sscofpmf_sstc_svinval_svnapot_svpbmt"; > + riscv,isa-base = "rv64i"; > + riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom", > + "zicbop", "zicboz", "zicntr", "zicond", "zicsr", > + "zifencei", "zihintpause", "zihpm", "zfh", "zba", > + "zbb", "zbc", "zbs", "zkt", "zvfh", "zvkt", > + "sscofpmf", "sstc", "svinval", "svnapot", "svpbmt"; > + riscv,cbom-block-size = <64>; > + riscv,cbop-block-size = <64>; > + riscv,cboz-block-size = <64>; > + mmu-type = "riscv,sv39"; > + > + cpu7_intc: interrupt-controller { > + compatible = "riscv,cpu-intc"; > + interrupt-controller; > + #interrupt-cells = <1>; > + }; > + }; > + > + }; > + > + soc { > + compatible = "simple-bus"; > + interrupt-parent = <&plic>; > + #address-cells = <2>; > + #size-cells = <2>; > + dma-noncoherent; > + ranges; > + > + plic: interrupt-controller@e0000000 { > + compatible = "spacemit,k1-plic", "riscv,plic0"; > + reg = <0x0 0xe0000000 0x0 0x4000000>; > + interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>, > + <&cpu1_intc 11>, <&cpu1_intc 9>, > + <&cpu2_intc 11>, <&cpu2_intc 9>, > + <&cpu3_intc 11>, <&cpu3_intc 9>, > + <&cpu4_intc 11>, <&cpu4_intc 9>, > + <&cpu5_intc 11>, <&cpu5_intc 9>, > + <&cpu6_intc 11>, <&cpu6_intc 9>, > + <&cpu7_intc 11>, <&cpu7_intc 9>; > + interrupt-controller; > + #address-cells = <0>; > + #interrupt-cells = <1>; > + riscv,ndev = <159>; > + }; > + > + clint: timer@e4000000 { > + compatible = "spacemit,k1-clint", "sifive,clint0"; > + reg = <0x0 0xe4000000 0x0 0x10000>; > + interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>, > + <&cpu1_intc 3>, <&cpu1_intc 7>, > + <&cpu2_intc 3>, <&cpu2_intc 7>, > + <&cpu3_intc 3>, <&cpu3_intc 7>, > + <&cpu4_intc 3>, <&cpu4_intc 7>, > + <&cpu5_intc 3>, <&cpu5_intc 7>, > + <&cpu6_intc 3>, <&cpu6_intc 7>, > + <&cpu7_intc 3>, <&cpu7_intc 7>; > + }; > + > + uart0: serial@d4017000 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017000 0x0 0x100>; > + interrupts = <42>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + /* note: uart1 skipped */ The datasheet page you link to above says "-UART (×10)", but here you're skipping one of them. Why? I can see the vendor tree does the same, but it would be nice with an explanation of what's going on. > + > + uart2: uart@d4017100 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017100 0x0 0x100>; > + interrupts = <44>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart3: uart@d4017200 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017200 0x0 0x100>; > + interrupts = <45>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart4: uart@d4017300 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017300 0x0 0x100>; > + interrupts = <46>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart5: uart@d4017400 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017400 0x0 0x100>; > + interrupts = <47>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart6: uart@d4017500 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017500 0x0 0x100>; > + interrupts = <48>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart7: uart@d4017600 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017600 0x0 0x100>; > + interrupts = <49>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart8: uart@d4017700 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017700 0x0 0x100>; > + interrupts = <50>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + > + uart9: uart@d4017800 { > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > + reg = <0x0 0xd4017800 0x0 0x100>; > + interrupts = <51>; > + clock-frequency = <14857000>; > + reg-shift = <2>; > + reg-io-width = <4>; > + status = "disabled"; > + }; > + }; > +}; > > -- > 2.45.2 > > > _______________________________________________ > linux-riscv mailing list > linux-riscv@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-riscv
