On Thu, Jul 04, 2024 at 09:48:01PM +0800, Jisheng Zhang wrote: > On Wed, Jul 03, 2024 at 02:55:11PM +0000, 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. > > > > Link: https://docs.banana-pi.org/en/BPI-F3/SpacemiT_K1_datasheet [1] > > Link: https://developer.spacemit.com/#/documentation?token=BWbGwbx7liGW21kq9lucSA6Vnpb [2] > > Link: https://gitee.com/bianbu-linux/linux-6.1/blob/bl-v1.0.y/arch/riscv/boot/dts/spacemit/k1-x.dtsi [3] > > Signed-off-by: Yangyu Chen <cyy@xxxxxxxxxxxx> > > Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx> > > --- > > arch/riscv/boot/dts/spacemit/k1.dtsi | 376 +++++++++++++++++++++++++++++++++++ > > 1 file changed, 376 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..a076e35855a2e > > --- /dev/null > > +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi > > @@ -0,0 +1,376 @@ > > +// 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; > > + > > + uart0: serial@d4017000 { > > + compatible = "spacemit,k1-uart", "intel,xscale-uart"; > > no, this is not a correct hw modeling. Vendor's linux kernel source code also clearly indicates the FIFO size is 64B. > > IIRC, 8250_pxa is a xscale uart with 64 bytes FIFO, so this should be > "mrvl,pxa-uart" or "mrvl,mmp-uart" > > > + reg = <0x0 0xd4017000 0x0 0x100>; > > + interrupts = <42>; > > + clock-frequency = <14857000>; > > once clk is ready, you will remove this property and add clk phandles, > so why not bring clk, pinctrl, reset before hand? >
