SSD201/SSD202D Progress

[fifteenhex]

These chips can now fully boot themselves from local storage.

IPL g5da0ceb
D-1e
SW Reset
miupll_233MHz
MIU0 zq=0x003c
miu_bw_set
utmi_1_init done
utmi_2_init done
utmi_3_init done
usbpll init done......
cpupll init done
SPI 54M
clk_init done 
P1 USB_rterm trim=0x0000
P1 USB_HS_TX_CURRENT trim=0x0001
P2 USB_rterm trim=0x0000
P2 USB_HS_TX_CURRENT trim=0x0001
P3 USB_rterm trim=0x0000
P3 USB_HS_TX_CURRENT trim=0x0001
PM_vol_bgap trim=0x0002
GCR_SAR_DATA trim=0x0190
ETH 10T output swing trim=0x0000
ETH 100T output swing trim=0x0000
ETH RX input impedance trim=0x0000
ETH TX output impedance trim=0x0001
MIPI_HS_RTERM trim=0x0001
MIPI_LP_RTERM trim=0x0000
128MB
BIST0_0001-OK
Enable MMU and CACHE
Load IPL_CUST from SPINAND
unable to find IDX for part type:0001
[I]m7
Checksum OK
!
U-Boot SPL 2021.01-rc4-00137-gb3f4baadc5b4-dirty (Jan 24 2021 - 18:57:06 +0900)

cpuid: 410fc075, mstar chipid: f0
normal power on
wrote 1f206540 <- 4bc7 was 4bc7, readback 4bc7
wrote 1f206544 <- 0037 was 0037, readback 0037
wrote 1f206548 <- b3d5 was 0000, readback b3d5
wrote 1f20654c <- 0043 was 0000, readback 0043
wrote 1f206560 <- 0001 was 0000, readback 0001
wrote 1f206554 <- 0006 was 0006, readback 0006
wrote 1f20655c <- 0008 was 0008, readback 0008
wrote 1f206564 <- 1000 was 0000, readback 1000
wrote 1f206550 <- 0000 was 0000, readback 0000
wrote 1f206550 <- 0001 was 0000, readback 0001
wrote 1f20442c <- 0001 was 0000, readback 0001
wrote 1f203ddc <- 0004 was 0000, readback 0004
wrote 1f203dd4 <- 4004 was 0000, readback 4004
wrote 1f203dd8 <- 0001 was 0000, readback 0001
wrote 1f203dc0 <- 0000 was 0000, readback 0000
wrote 1f203dc0 <- 8000 was 0000, readback 8000
delaying for 100
readback: 4277
mplldbg 2
mpll: 0 - 0
mpll: 4 - 0
mpll: 8 - 0
mpll: c - a0005578
mpll: 10 - ef
Trying to boot from SPI NAND(UBI)
xx 1
xx 2
UBI: Loading VolId #0
!

U-Boot 2021.01-rc4-00137-gb3f4baadc5b4-dirty (Jan 24 2021 - 18:29:46 +0900)

DRAM:  128 MiB
wrote 1f206540 <- 4bc7 was 4bc7, readback 4bc7
wrote 1f206544 <- 0037 was 0037, readback 0037
wrote 1f206548 <- b3d5 was b3d5, readback b3d5
wrote 1f20654c <- 0043 was 0043, readback 0043
wrote 1f206560 <- 0001 was 0001, readback 0001
wrote 1f206554 <- 0006 was 0006, readback 0006
wrote 1f20655c <- 0008 was 0008, readback 0008
wrote 1f206564 <- 1000 was 1000, readback 1000
wrote 1f206550 <- 0000 was 0001, readback 0000
wrote 1f206550 <- 0001 was 0000, readback 0001
wrote 1f20442c <- 0001 was 0001, readback 0001
wrote 1f203ddc <- 0004 was 0004, readback 0004
wrote 1f203dd4 <- 4004 was 4004, readback 4004
wrote 1f203dd8 <- 0001 was 0001, readback 0001
wrote 1f203dc0 <- 0000 was 8000, readback 0000
wrote 1f203dc0 <- 8000 was 0000, readback 8000
delaying for 100
readback: 4278
mpll here!
mpll here xxxx!
checking 26f8a370 26f8a370
found parent at 0
mpll is already running
MMC:   
Loading Environment from UBI... xx 1
xx 2
Read 8192 bytes from volume env to 26f85780
OK
In:    uart@221000
Out:   uart@221000
Err:   uart@221000
Net:   checking 26f8ae88 26f8ae88
found parent at 0
emac patches
rx ring 26fce9c0

Warning: emac@2a2000 (eth0) using random MAC address - ce:f7:e1:8a:a2:5d
eth0: emac@2a2000
=> run boot_rescue 
No size specified -> Using max size (16887808)
Read 16887808 bytes from volume rescue to 22000000
## Loading kernel from FIT Image at 22000000 ...
   Using 'gw302' configuration
   Trying 'kernel@0' kernel subimage
     Description:  unavailable
     Type:         Kernel Image
     Compression:  uncompressed
     Data Start:   0x220000b0
     Data Size:    3450368 Bytes = 3.3 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: 0x22800000
     Entry Point:  0x22800000
     Hash algo:    crc32
     Hash value:   e0a8fe63
     Hash algo:    sha1
     Hash value:   d18e5f4096db31bfe2f41dcf7be5234dc2e5455e
   Verifying Hash Integrity ... crc32+ sha1+ OK
## Loading ramdisk from FIT Image at 22000000 ...
   Using 'gw302' configuration
   Trying 'ramdisk@0' ramdisk subimage
     Description:  unavailable
     Type:         RAMDisk Image
     Compression:  uncompressed
     Data Start:   0x223743a0
     Data Size:    2666374 Bytes = 2.5 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: 0x22e00000
     Entry Point:  unavailable
     Hash algo:    crc32
     Hash value:   40cc8f2a
     Hash algo:    sha1
     Hash value:   4d0663b152157f6257d08a8b34564b10c43fdb2c
   Verifying Hash Integrity ... crc32+ sha1+ OK
   Loading ramdisk from 0x223743a0 to 0x22e00000
## Loading fdt from FIT Image at 22000000 ...
   Using 'gw302' configuration
   Trying 'fdt@2' fdt subimage
     Description:  unavailable
     Type:         Flat Device Tree
     Compression:  uncompressed
     Data Start:   0x2235f430
     Data Size:    42786 Bytes = 41.8 KiB
     Architecture: ARM
     Load Address: 0x22d00000
     Hash algo:    crc32
     Hash value:   ae1c50c7
     Hash algo:    sha1
     Hash value:   ec0fded850a2e7aa1dc82574a105ee34db6f2b4f
   Verifying Hash Integrity ... crc32+ sha1+ OK
   Loading fdt from 0x2235f430 to 0x22d00000
   Booting using the fdt blob at 0x22d00000
   Loading Kernel Image
   Loading Ramdisk to 26cfb000, end 26f85f86 ... OK
   Loading Device Tree to 26ced000, end 26cfa721 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.11.0-rc4+ (daniel@shiro) (arm-buildroot-linux-gnueabihf-gcc.br_real (Buildroot 2020.08-1318-ge7000b15fe) 10.2.0, GNU ld (GNU Binutils) 2.1
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: GW302
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000020000000-0x0000000027ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000020000000-0x0000000027ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000020000000-0x0000000027ffffff]
[    0.000000] percpu: Embedded 15 pages/cpu s32460 r8192 d20788 u61440
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32512
[    0.000000] Kernel command line: console=ttyS0,115200 clk_ignore_unused earlyprintk ubi.mtd=1 ubi.block=0,rootfs root=/dev/ubiblock0_2
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 114824K/131072K available (7168K kernel code, 705K rwdata, 2156K rodata, 1024K init, 243K bss, 16248K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[    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=2
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] gicint: 25
[    0.000000] arch_timer: cp15 timer(s) running at 6.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1623fa770, max_idle_ns: 440795202238 ns
[    0.000001] sched_clock: 56 bits at 6MHz, resolution 166ns, wraps every 4398046511055ns
[    0.000023] Switching to timer-based delay loop, resolution 166ns
[    0.000200] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 159271703898 ns
[    0.000250] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 159271703898 ns
[    0.000306] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 159271703898 ns
[    0.000759] Console: colour dummy device 80x30
[    0.000813] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.00 BogoMIPS (lpj=60000)
[    0.000836] pid_max: default: 32768 minimum: 301
[    0.000988] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.001011] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.001762] CPU: Testing write buffer coherency: ok
[    0.002036] /cpus/cpu@0 missing clock-frequency property
[    0.002076] /cpus/cpu@1 missing clock-frequency property
[    0.002097] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.002672] Setting up static identity map for 0x20100000 - 0x20100060
[    0.002803] rcu: Hierarchical SRCU implementation.
[    0.003539] smp: Bringing up secondary CPUs ...
[    0.004231] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.004408] smp: Brought up 1 node, 2 CPUs
[    0.004435] SMP: Total of 2 processors activated (24.00 BogoMIPS).
[    0.004449] CPU: All CPU(s) started in SVC mode.
[    0.004922] devtmpfs: initialized
[    0.014473] random: get_random_bytes called from setup_net+0x30/0x168 with crng_init=0
[    0.014859] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.015119] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.015151] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[    0.015291] pinctrl core: initialized pinctrl subsystem
[    0.016295] NET: Registered protocol family 16
[    0.016754] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.018154] cpuidle: using governor ladder
[    0.018204] cpuidle: using governor menu
[    0.043988] pm code is at c8879000, pm info is at c8878000, pmsleep is at c885ec00, pmgpio is at c887de00
[    0.044129] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.044152] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.057034] cryptd: max_cpu_qlen set to 1000
[    0.060547] SCSI subsystem initialized
[    0.060790] usbcore: registered new interface driver usbfs
[    0.060851] usbcore: registered new interface driver hub
[    0.060909] usbcore: registered new device driver usb
[    0.061281] usb_phy_generic soc:fakephy@0: supply vcc not found, using dummy regulator
[    0.061602] mc: Linux media interface: v0.10
[    0.061651] videodev: Linux video capture interface: v2.00
[    0.061991] FPGA manager framework
[    0.062072] Advanced Linux Sound Architecture Driver Initialized.
[    0.063066] clocksource: Switched to clocksource arch_sys_counter
[    0.072465] NET: Registered protocol family 2
[    0.073180] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[    0.073237] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.073269] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear)
[    0.073303] TCP: Hash tables configured (established 1024 bind 1024)
[    0.073415] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.073459] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear)
[    0.073630] NET: Registered protocol family 1
[    0.074201] RPC: Registered named UNIX socket transport module.
[    0.074225] RPC: Registered udp transport module.
[    0.074235] RPC: Registered tcp transport module.
[    0.074245] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.075859] Unpacking initramfs...
[    0.271525] Freeing initrd memory: 2604K
[    0.272240] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available
[    0.276777] Initialise system trusted keyrings
[    0.277031] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[    0.286468] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.287563] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.401425] Key type asymmetric registered
[    0.401455] Asymmetric key parser 'x509' registered
[    0.401524] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    0.403672] msc313-usb-phy soc:usbphy@0: Switching to UHC port
[    0.403707] msc313-usb-phy soc:usbphy@0: starting calibration...
[    0.404725] msc313-usb-phy soc:usbphy@0: calibration finished.
[    0.412609] msc313e-clkgen-mux 1f001c80.clkgen_mux: deglitch at 7
[    0.412688] msc313e-clkgen-mux 1f001c80.clkgen_mux: deglitch at 14
[    0.413607] msc313e-clkgen-mux 1f20705c.clkgen_mux: deglitch at 4
[    0.415052] msc313e-clkgen-mux 1f207180.clkgen_mux: deglitch at 4
[    0.416013] msc313e-clkgen-mux 1f207004.clkgen_mux: deglitch at 4
[    0.417239] msc313e-clkgen-mux: probe of 1f2070c0.clkgen_mux failed with error -22
[    0.417637] msc313e-clkgen-mux 1f2070c8.clkgen_mux: deglitch at 4
[    0.418866] msc313e-clkgen-mux 1f207184.clkgen_mux: deglitch at 4
[    0.418931] msc313e-clkgen-mux 1f207184.clkgen_mux: deglitch at 12
[    0.418968] msc313e-clkgen-mux 1f207184.clkgen_mux: deglitch clock is selected
[    0.420883] msc313e-clkgen-mux: probe of 1f226680.clkgen_mux failed with error -22
[    0.425005] cmdq probe
[    0.425875] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.428447] printk: console [ttyS0] disabled
[    0.428557] 1f221000.uart: ttyS0 at MMIO 0x1f221000 (irq = 54, base_baud = 10800000) is a 16550A
[    1.143157] printk: console [ttyS0] enabled
[    1.148454] 1f221200.uart: ttyS1 at MMIO 0x1f221200 (irq = 55, base_baud = 10800000) is a 16550A
[    1.160067] mstar-drm soc:display@0: probe
[    1.164681] mstar-gop 1f246200.gop: 1f246200.gop -> Q��U
[    1.170111] mstar-gop 1f246200.gop: 1f246200.gop -> |I�DZ
[    1.175746] mstar-gop 1f246200.gop: binding
[    1.180138] mstar-gop 1f246200.gop: reset
[    1.194214] mstar-gop 1f246200.gop: dst: ip_main
[    1.198861] mstar-drm soc:display@0: bound 1f246200.gop (ops 0xc0848df8)
[    1.205962] [drm] Initialized mstar-drm 1.0.0 20191208 for soc:display@0 on minor 0
[    1.214690] dummy-irq: no IRQ given.  Use irq=N
[    1.221313] sh 50000000 
[    1.224380] spi-nand spi0.0: Winbond SPI NAND was found.
[    1.229724] spi-nand spi0.0: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 64
[    1.243336] 1 fixed-partitions partitions found on MTD device spi0.0
[    1.249741] Creating 1 MTD partitions on "spi0.0":
[    1.254597] 0x0000002c0000-0x000008000000 : "ubi"
[    1.511303] libphy: Fixed MDIO Bus: probed
[    1.517033] libphy: MACB_mii_bus: probed
[    1.525322] phy probe
[    1.528449] macb 1f2a2000.emac eth0: Cadence MACB rev 0x00000000 at 0x1f2a2000 irq 58 (ce:f7:00:00:a2:5d)
[    1.539214] usbcore: registered new interface driver rtl8192cu
[    1.545161] usbcore: registered new interface driver asix
[    1.550625] usbcore: registered new interface driver ax88179_178a
[    1.556799] usbcore: registered new interface driver cdc_ether
[    1.562690] usbcore: registered new interface driver rndis_host
[    1.568653] fotg210_hcd: FOTG210 Host Controller (EHCI) Driver
[    1.574979] need fusbh200 code here 5600
[    1.578943] getting port 0
[    1.581768] fotg210-hcd 1f284800.uhc: Faraday USB2.0 Host Controller
[    1.588198] fotg210-hcd 1f284800.uhc: new USB bus registered, assigned bus number 1
[    1.596018] fotg210-hcd 1f284800.uhc: irq 62, io mem 0x1f284800
[    1.611998] fotg210-hcd 1f284800.uhc: USB 2.0 started, EHCI 1.00
[    1.619022] hub 1-0:1.0: USB hub found
[    1.622843] hub 1-0:1.0: 1 port detected
[    1.627542] usbcore: registered new interface driver cdc_acm
[    1.633270] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    1.641351] usbcore: registered new interface driver cdc_wdm
[    1.647140] usbcore: registered new interface driver usb-storage
[    1.653297] usbcore: registered new interface driver usbserial_generic
[    1.659901] usbserial: USB Serial support registered for generic
[    1.666010] usbcore: registered new interface driver cp210x
[    1.671633] usbserial: USB Serial support registered for cp210x
[    1.677634] usbcore: registered new interface driver option
[    1.683273] usbserial: USB Serial support registered for GSM modem (1-port)
[    1.690364] usbcore: registered new interface driver usb_serial_simple
[    1.696962] usbserial: USB Serial support registered for carelink
[    1.703118] usbserial: USB Serial support registered for zio
[    1.708825] usbserial: USB Serial support registered for funsoft
[    1.714892] usbserial: USB Serial support registered for flashloader
[    1.721294] usbserial: USB Serial support registered for google
[    1.727283] usbserial: USB Serial support registered for libtransistor
[    1.733890] usbserial: USB Serial support registered for vivopay
[    1.739944] usbserial: USB Serial support registered for moto_modem
[    1.746290] usbserial: USB Serial support registered for motorola_tetra
[    1.752955] usbserial: USB Serial support registered for novatel_gps
[    1.759375] usbserial: USB Serial support registered for hp4x
[    1.765183] usbserial: USB Serial support registered for suunto
[    1.771148] usbserial: USB Serial support registered for siemens_mpi
[    1.779241] msc313e-rtc 1f002400.rtc: registered as rtc0
[    1.784646] msc313e-rtc 1f002400.rtc: setting system clock to 2021-01-25T11:38:55 UTC (1611574735)
[    1.794078] i2c /dev entries driver
[    2.048345] rtc-isl1208 1-006f: registered as rtc1
[    2.054035] Driver for 1-wire Dallas network protocol.
[    2.062015] cpufreq: cpufreq_online: CPU0: Running at unlisted initial frequency: 999999 KHz, changing to: 1000000 KHz
[    2.074494] msc313-sha 1f224420.sha: will run requests pump with realtime priority
[    2.092290] value 0:d5ca
[    2.094864] value 1:935f
[    2.097408] value 2:341e
[    2.099949] value 3:839d
[    2.102489] value 4:a23c
[    2.105040] value 5:bd10
[    2.107583] value 6:69a7
[    2.110124] value 7:898f
[    2.112664] value 8:944e
[    2.115213] value 9:8209
[    2.117754] value 10:dc00
[    2.120383] value 11:7950
[    2.123011] value 12:17aa
[    2.125646] value 13:5e8a
[    2.128276] value 14:3a2e
[    2.130904] value 15:3872
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[    2.602422] 0 0
[    2.604200] l 49859
[    2.606306] l 0
[    2.608063] 4 0
[    2.609819] l 49859
[    2.611924] l 0
[    2.613688] 8 0
[    2.615446] l 49859
[    2.617550] l 0
[    2.619306] 12 0
[    2.621150] l 49859
[    2.623267] l 0
[    2.625026] 16 0
[    2.626869] l 49859
[    2.628974] l 0
[    2.630730] 20 0
[    2.632573] l 49859
[    2.634686] l 0
[    2.636443] 24 0
[    2.638287] l 49859
[    2.640391] l 0
[    2.642147] 28 0
[    2.643998] l 49859
[    2.646103] l 0
[    2.647859] 32 0
[    2.649702] l 49859
[    2.651806] l 0
[    2.653569] 36 0
[    2.655414] l 49859
[    2.657518] l 0
[    2.659274] 40 0
[    2.661118] l 49859
[    2.663231] l 0
[    2.664988] 44 0
[    2.666831] l 49859
[    2.668936] l 0
[    2.670692] 48 0
[    2.672535] l 49859
[    2.674647] l 0
[    2.676404] 52 0
[    2.678248] l 49859
[    2.680352] l 0
[    2.682108] 56 0
[    2.683963] l 49859
[    2.686068] l 0
[    2.687825] 60 0
[    2.689669] l 49859
[    2.691772] l 0
[    2.693536] rsa: 0 ff:c3
[    2.696079] rsa: 1 fe:c2
[    2.698620] rsa: 2 fd:0
[    2.701073] rsa: 3 fc:0
[    2.703534] rsa: 4 fb:c3
[    2.706075] rsa: 5 fa:c2
[    2.708616] rsa: 6 f9:0
[    2.711069] rsa: 7 f8:0
[    2.713530] rsa: 8 f7:c3
[    2.716072] rsa: 9 f6:c2
[    2.718612] rsa: 10 f5:0
[    2.721153] rsa: 11 f4:0
[    2.723701] rsa: 12 f3:c3
[    2.726330] rsa: 13 f2:c2
[    2.728958] rsa: 14 f1:0
[    2.731499] rsa: 15 f0:0
[    2.734046] rsa: 16 ef:c3
[    2.736675] rsa: 17 ee:c2
[    2.739303] rsa: 18 ed:0
[    2.741844] rsa: 19 ec:0
[    2.744396] rsa: 20 eb:c3
[    2.747026] rsa: 21 ea:c2
[    2.749654] rsa: 22 e9:0
[    2.752195] rsa: 23 e8:0
[    2.754743] rsa: 24 e7:c3
[    2.757372] rsa: 25 e6:c2
[    2.760000] rsa: 26 e5:0
[    2.762541] rsa: 27 e4:0
[    2.765089] rsa: 28 e3:c3
[    2.767718] rsa: 29 e2:c2
[    2.770345] rsa: 30 e1:0
[    2.772885] rsa: 31 e0:0
[    2.775433] rsa: 32 df:c3
[    2.778062] rsa: 33 de:c2
[    2.780690] rsa: 34 dd:0
[    2.783238] rsa: 35 dc:0
[    2.785779] rsa: 36 db:c3
[    2.788407] rsa: 37 da:c2
[    2.791035] rsa: 38 d9:0
[    2.793583] rsa: 39 d8:0
[    2.796125] rsa: 40 d7:c3
[    2.798753] rsa: 41 d6:c2
[    2.801381] rsa: 42 d5:0
[    2.803933] rsa: 43 d4:0
[    2.806475] rsa: 44 d3:c3
[    2.809103] rsa: 45 d2:c2
[    2.811731] rsa: 46 d1:0
[    2.814279] rsa: 47 d0:0
[    2.816820] rsa: 48 cf:c3
[    2.819449] rsa: 49 ce:c2
[    2.822077] rsa: 50 cd:0
[    2.824625] rsa: 51 cc:0
[    2.827166] rsa: 52 cb:c3
[    2.829795] rsa: 53 ca:c2
[    2.832423] rsa: 54 c9:0
[    2.834970] rsa: 55 c8:0
[    2.837512] rsa: 56 c7:c3
[    2.840140] rsa: 57 c6:c2
[    2.842768] rsa: 58 c5:0
[    2.845316] rsa: 59 c4:0
[    2.847858] rsa: 60 c3:c3
[    2.850486] rsa: 61 c2:c2
[    2.853121] rsa: 62 c1:0
[    2.855662] rsa: 63 c0:0
[    2.859105] remoteproc remoteproc0: pm51 is available
[    2.865053] msc313-miu 1f202000.miu: Memory type is DDR3, 8 banks and 10 columns, 16 bit bus
[    2.873555] msc313-miu 1f202000.miu: trcd: 13, trp: 13, tras: 32, trrd: 6, trtp: 7, trc: 45
[    2.883489] sar: int: 7
[    2.886152] usbcore: registered new interface driver snd-usb-audio
[    2.893484] NET: Registered protocol family 10
[    2.899103] Segment Routing with IPv6
[    2.902852] NET: Registered protocol family 17
[    2.907516] Registering SWP/SWPB emulation handler
[    2.919633] Loading compiled-in X.509 certificates
[    2.932142] ubi0: attaching mtd1
[   11.062546] ubi0: scanning is finished
[   11.158798] ubi0: attached mtd1 (name "ubi", size 125 MiB)
[   11.164367] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[   11.171268] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[   11.178106] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[   11.185108] ubi0: good PEBs: 1002, bad PEBs: 0, corrupted PEBs: 0
[   11.191223] ubi0: user volume: 5, internal volumes: 1, max. volumes count: 128
[   11.198476] ubi0: max/mean erase counter: 3/1, WL threshold: 4096, image sequence number: 1944107730
[   11.207650] ubi0: available PEBs: 171, total reserved PEBs: 831, PEBs reserved for bad PEB handling: 20
[   11.217279] ubi0: background thread "ubi_bgt0d" started, PID 92
[   11.223520] block ubiblock0_4: created from ubi0:4(rootfs)
[   11.229606] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   11.244896] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   11.251480] clk: Not disabling unused clocks
[   11.255797] ALSA device list:
[   11.258778]   No soundcards found.
[   11.264211] Freeing unused kernel memory: 1024K
[   11.293848] Run /init as init process

[Vasili-Sk]

What is DDR clock for 202?

[fifteenhex]

You add extra frequencies to the operating points table in the device tree.
With the vendor kernel the reported clock frequency is a few hundred mhz lower than what is measured by the mhz tool.

[hojnikb]

You add extra frequencies to the operating points table in the device tree.

Wow, that's a pretty high frequency for a A7 core. What process is this fabbed on? Is DDR or any other clocks tied to cpu?

[metanav]

You add extra frequencies to the operating points table in the device tree.
With the vendor kernel the reported clock frequency is a few hundred mhz lower than what is measured by the mhz tool.

Sorry for the basic question but I am very beginner when it comes to linux kernel things. I am using M5Stack UnitV2 with preinstalled linux-chenxing. So exactly where should I change this operating point table? Do I need to do anything else after this change to make it running at 1.8GHz?

[fifteenhex]

The unitv2 will be running m5stacks build of the kernel from the vendor of the chip which is totally separate from the code linux-chenxing is developing.

To overclock the unitv2 but keep the m5stack software you'd need to ask them. I remember discussing this with their developer though and they seem to have already done as much as they can.

And I tested the unitv2 with the linux-chenxing kernel and it didn't clock as high as I managed elsewhere. The core voltage is probably lowered to reduce the heat from the chip in the tiny unitv2 case and that limits how fast it can run.

[fifteenhex]

You add extra frequencies to the operating points table in the device tree.

Wow, that's a pretty high frequency for a A7 core. What process is this fabbed on? Is DDR or any other clocks tied to cpu?

It'll be either 28nm or 22nm I think. That's the two process sizes sigmastar listed for some recent chips.
From what I remember there is a main PLL and the CPU PLL and DDR PLL are generated from there but not directly linked.

So it would seem to be possible to overclock the memory and cpu separately.

[parthitce]

Good day @fifteenhex , Thanks for the work and updates here. I checked the mainline tree state and the mailing list patches. I would like to get involved as part of the development in coming weeks.

Although I can track the github tree/branch for the next developments, could you please share any pointers on any specific sub-system which I can start with? Like I2C/SPI/DMA/Audio parts?

Thanks in advance.

[fifteenhex]

Hi,

i2c, spi and some of the DMA bits are working in my tree but it's a bit of mess. People are helping me clean that up at the moment. More the merrier on that. If you want to work on something brand new then there is the UART DMA, the graphics/framebuffer bits and audio left for the SSD202D I think.

I guess what you want to work on is up to you. Getting the display going would be really neat though.

Thanks,

Daniel

[parthitce]

Thanks. I will check the vendor tree. I know the documents are closed, but is there a open version of TRM/datasheets available as well?

[fifteenhex]

Thanks. I will check the vendor tree. I know the documents are closed, but is there a open version of TRM/datasheets available as well?

From what I can tell even hardware vendors that signed an NDA do not get a register level datasheet. 😭

[asoderq]

I am reviving this thread as I saw your tweet of the SSD202D running DOOM, I didn't get that you already had a drm driver!
What is the current status of SSD202D support? What is missing? Sound, I think you already said. What about the 2D accelerator?

[asoderq]

Thanks,but I am thinking the SSD202D's 2d functions has gotten an upgrade.
From msb2521 datasheet:

Line draw and rectangle draw/fill
BitBlt
Clipping, rotate or mirror
Dithering and alpha blending
Supports tile mode

From ssd202d product brief:

Line draw
Rectangle/gradient rectangle fill
Bitblt/Stretch Bitblt/Italic Bitblt
Palette mode (1/2/4/8-bit)
Format transformation
Color space conversion
Clipping
Alpha blending
Rotation/Mirror

It is Bitblt/Stretch I am interested in.

[fifteenhex]

mmm let me do a bit more digging. I haven't really looked too hard at the 2D stuff as I didn't think it would be useful.
If it's really useful we can probably work out how to use it by putting their HAL through ghidra.

[asoderq]

Thanks a lot, I appreciate it! It is a very essential feature for emulating old systems, since they come with all sorts of resolutions, we could of course do this in software with for example FFmpeg's libswscale, but that is wasting precious CPU cycles that is needed for the harder to emulate systems like PSX and SNES.

[Vasili-Sk]

mmm let me do a bit more digging. I haven't really looked too hard at the 2D stuff as I didn't think it would be useful. If it's really useful we can probably work out how to use it by putting their HAL through ghidra.

vote up! lvgl will definetly benefit from it

[fifteenhex]

vote up! lvgl will definetly benefit from it

The official linux and freertos SDK that is kicking about use the 2D graphics block with LVGL already by the look of it.

[brentpicasso]

Glad to see this update. Getting back into the SSD202D project now after a very long unrelated software release project.

[fifteenhex]

Thanks a lot, I appreciate it! It is a very essential feature for emulating old systems, since they come with all sorts of resolutions

I think I know all we need to know to write a driver now. 2D gpus are basically totally unsupported in the kernel itself from what I can tell. There is no supported 2D API etc... so I'm wondering what the best way to write a driver for this is. I'm thinking maybe UIO (https://www.kernel.org/doc/html/latest/driver-api/uio-howto.html) so whatever uses it opens a dev and talks to it via a library instead of coming up with a complete in kernel driver.

[asoderq]

I first got familiar with hardware scaling on the Ingenic jz47xx SoCs, they have something called IPU (image processing unit) which does the scaling. Which is really nice as it support Bicubic algorithm. I think the equivalent in Sigmastar SoCs would be Bitblt/stretch, but yeah I never really seen any documentation so I am not sure what it does. Anyway the Ingenic IPU seems to implemented along with the DRM-driver:
https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/ingenic

EDIT: An example of how a user space API (SDL1.2) would use the drm driver with scaling support is available here: https://github.com/OpenDingux/SDL/tree/fix-10bit/src/video/kmsdrm
Btw OpenDingux is the OS that runs on jz47xx based handhelds.

[asoderq]

Sorry for not replying to your main topic, for the rest of 2D API I have no idea where it fits in the kernel, only the scaling part as mentioned above.