Tool/software: Linux
I'm using am4376 processor with sdk version 04.02.00.09 and encoutered a qspi nor booting issue.
I followed the following two guides to setup qspi boot. But mass warning/error occurred while loading jffs2 from nor flash.
processors.wiki.ti.com/.../Linux_Core_U-Boot_User's_Guide
processors.wiki.ti.com/.../Linux_Core_QSPI_User's_Guide
Everything was fine while booting from nfs.
But when I switched to qspiboot, everything went wrong after the warning message dump from kernel.
I also tried to trace the code in spi-nor.c. However I could not tell what the root cause was.
Can someone help me or any hint to solve the issue, thanks.
soc: am4376
sdk: 04.02.00.09
nor flash: MX66L51235FMI
linux defconfig: tisdk_am437x-evm_defconfig with jffs2 config added
device tree source: base on am437x-sk-evm.dts and am437x-idk-evm.dts. none of them works
my dts setting for qspi (everything is the same with original dts file, besides the partition size):
qspi_pins: qspi_pins {
pinctrl-single,pins = <
AM4372_IOPAD(0x87c, PIN_OUTPUT | MUX_MODE3) /* gpmc_csn0.qspi_csn */
AM4372_IOPAD(0x888, PIN_OUTPUT | MUX_MODE2) /* gpmc_csn3.qspi_clk */
AM4372_IOPAD(0x890, PIN_INPUT | MUX_MODE3) /* gpmc_advn_ale.qspi_d0 */
AM4372_IOPAD(0x894, PIN_INPUT | MUX_MODE3) /* gpmc_oen_ren.qspi_d1 */
AM4372_IOPAD(0x898, PIN_INPUT | MUX_MODE3) /* gpmc_wen.qspi_d2 */
AM4372_IOPAD(0x89c, PIN_INPUT | MUX_MODE3) /* gpmc_be0n_cle.qspi_d3 */
>;
};
&qspi {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&qspi_pins>;
spi-max-frequency = <48000000>;
m25p80@0 {
compatible = "mx66l51235l";
spi-max-frequency = <48000000>;
reg = <0>;
spi-cpol;
spi-cpha;
spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
#address-cells = <1>;
#size-cells = <1>;
/* MTD partition table.
* The ROM checks the first 512KiB
* for a valid file to boot(XIP).
*/
partition@0 {
label = "QSPI.U_BOOT";
reg = <0x00000000 0x000080000>;
};
partition@1 {
label = "QSPI.U_BOOT.backup";
reg = <0x00080000 0x00080000>;
};
partition@2 {
label = "QSPI.U_BOOT_ENV";
reg = <0x00100000 0x00010000>;
};
partition@3 {
label = "QSPI.FDT";
reg = <0x00110000 0x00010000>;
};
partition@4 {
label = "QSPI.KERNEL";
reg = <0x00120000 0x0800000>;
};
partition@5 {
label = "QSPI.FILESYSTEM";
reg = <0x00920000 0x36E0000>;
};
};
};
Kernel booting message:
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.59 (user@userUbuntu) (gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) ) #1 PREEMPT Fri Feb 23 08:44:38 CST 2018
[ 0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt:Machine model: TI AM437x
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 48 MiB at 0xbd000000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM437x ES1.2 (neon)
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260416
[ 0.000000] Kernel command line: console=ttyO0,115200n8 spi-ti-qspi.enable_qspi=1 root=/dev/mtdblock5 rw rootfstype=jffs2 rootwait=1
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Memory: 977312K/1048576K available (7168K kernel code, 292K rwdata, 2400K rodata, 1024K init, 281K bss, 22112K reserved, 49152K cma-reserved, 212992K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0800000 (8160 kB)
[ 0.000000] .init : 0xc0b00000 - 0xc0c00000 (1024 kB)
[ 0.000000] .data : 0xc0c00000 - 0xc0c49048 ( 293 kB)
[ 0.000000] .bss : 0xc0c49048 - 0xc0c8f834 ( 282 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] L2C: platform modifies aux control register: 0x0e030000 -> 0x3e430000
[ 0.000000] L2C: DT/platform modifies aux control register: 0x0e030000 -> 0x3e430000
[ 0.000000] L2C-310 enabling early BRESP for Cortex-A9
[ 0.000000] OMAP L2C310: ROM does not support power control setting
[ 0.000000] L2C-310 dynamic clock gating disabled, standby mode disabled
[ 0.000000] L2C-310 cache controller enabled, 16 ways, 256 kB
[ 0.000000] L2C-310: CACHE_ID 0x410000c9, AUX_CTRL 0x4e430000
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000011] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000028] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000035] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000371] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[ 0.000381] OMAP clocksource: 32k_counter at 32768 Hz
[ 0.000701] Console: colour dummy device 80x30
[ 0.000727] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.000733] This ensures that you still see kernel messages. Please
[ 0.000738] update your kernel commandline.
[ 0.000757] Calibrating delay loop... 1987.37 BogoMIPS (lpj=9936896)
[ 0.060164] pid_max: default: 32768 minimum: 301
[ 0.060279] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.060291] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.061041] CPU: Testing write buffer coherency: ok
[ 0.061379] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.062132] EFI services will not be available.
[ 0.062913] devtmpfs: initialized
[ 0.072798] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 0.073086] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.073108] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.076313] pinctrl core: initialized pinctrl subsystem
[ 0.077384] NET: Registered protocol family 16
[ 0.078700] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.170176] cpuidle: using governor ladder
[ 0.200161] cpuidle: using governor menu
[ 0.206966] OMAP GPIO hardware version 0.1
[ 0.219054] No ATAGs?
[ 0.219082] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[ 0.219092] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.256458] edma 49000000.edma: TI EDMA DMA engine driver
[ 0.259422] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp@44000000/l4_wkup@44c00000/scm@210000/pinmux@800/i2c0_pins, deferring probe
[ 0.259475] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp@44000000/l4_wkup@44c00000/scm@210000/pinmux@800/i2c1_pins, deferring probe
[ 0.259556] media: Linux media interface: v0.10
[ 0.259597] Linux video capture interface: v2.00
[ 0.259640] pps_core: LinuxPPS API ver. 1 registered
[ 0.259647] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.259667] PTP clock support registered
[ 0.259698] EDAC MC: Ver: 3.0.0
[ 0.260659] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.260960] Advanced Linux Sound Architecture Driver Initialized.
[ 0.262005] clocksource: Switched to clocksource timer1
[ 0.269924] NET: Registered protocol family 2
[ 0.270631] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.270696] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.270771] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.270912] UDP hash table entries: 512 (order: 1, 8192 bytes)
[ 0.270934] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes)
[ 0.271078] NET: Registered protocol family 1
[ 0.271475] RPC: Registered named UNIX socket transport module.
[ 0.271486] RPC: Registered udp transport module.
[ 0.271492] RPC: Registered tcp transport module.
[ 0.271497] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.273723] workingset: timestamp_bits=14 max_order=18 bucket_order=4
[ 0.278789] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.279548] NFS: Registering the id_resolver key type
[ 0.279580] Key type id_resolver registered
[ 0.279586] Key type id_legacy registered
[ 0.279631] ntfs: driver 2.1.32 [Flags: R/O].
[ 0.279840] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.281489] bounce: pool size: 64 pages
[ 0.281672] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 246)
[ 0.281684] io scheduler noop registered
[ 0.281691] io scheduler deadline registered
[ 0.281801] io scheduler cfq registered (default)
[ 0.283305] pinctrl-single 44e10800.pinmux: 199 pins at pa f9e10800 size 796
[ 0.330181] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
[ 0.332667] omap8250 44e09000.serial: No clock speed specified: using default: 48000000
[ 0.333428] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
[ 0.990589] console [ttyS0] enabled
[ 0.995570] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 1.002379] [drm] Initialized
[ 1.018227] brd: module loaded
[ 1.027101] loop: module loaded
[ 1.033127] m25p80 spi0.0: mx66l51235l (65536 Kbytes)
[ 1.038253] 6 ofpart partitions found on MTD device spi0.0
[ 1.043861] Creating 6 MTD partitions on "spi0.0":
[ 1.048678] 0x000000000000-0x000000080000 : "QSPI.U_BOOT"
[ 1.055207] 0x000000080000-0x000000100000 : "QSPI.U_BOOT.backup"
[ 1.062206] 0x000000100000-0x000000110000 : "QSPI.U_BOOT_ENV"
[ 1.068879] 0x000000110000-0x000000120000 : "QSPI.FDT"
[ 1.074998] 0x000000120000-0x000000920000 : "QSPI.KERNEL"
[ 1.081271] 0x000000920000-0x000004000000 : "QSPI.FILESYSTEM"
[ 1.088613] libphy: Fixed MDIO Bus: probed
[ 1.162069] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 1.168204] davinci_mdio 4a101000.mdio: detected phy mask fffffff9
[ 1.175867] libphy: 4a101000.mdio: probed
[ 1.179912] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver Micrel KSZ9031 Gigabit PHY
[ 1.189699] davinci_mdio 4a101000.mdio: phy[2]: device 4a101000.mdio:02, driver Micrel KSZ9031 Gigabit PHY
[ 1.200129] cpsw 4a100000.ethernet: Detected MACID = bc:83:85:fa:60:3d
[ 1.206943] cpsw 4a100000.ethernet: device node lookup for pps timer failed
[ 1.214024] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies)
[ 1.221985] cpsw 4a100000.ethernet: cpsw: Detected MACID = bc:83:85:fa:60:3e
[ 1.230374] mousedev: PS/2 mouse device common for all mice
[ 1.236377] i2c /dev entries driver
[ 1.241482] cpuidle: enable-method property 'ti,am4372' found operations
[ 1.306149] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.314430] NET: Registered protocol family 10
[ 1.321405] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 1.330188] NET: Registered protocol family 17
[ 1.334993] Key type dns_resolver registered
[ 1.339542] omap_voltage_late_init: Voltage driver support not added
[ 1.366679] mmc0: new high speed MMC card at address 0001
[ 1.372770] mmcblk0: mmc0:0001 8GME4R 7.28 GiB
[ 1.377628] mmcblk0boot0: mmc0:0001 8GME4R partition 1 4.00 MiB
[ 1.384036] mmcblk0boot1: mmc0:0001 8GME4R partition 2 4.00 MiB
[ 1.391437] mmcblk0: p1 p2 p3 p4
[ 1.409940] at24 0-0050: 8192 byte 24c64 EEPROM, writable, 1 bytes/write
[ 1.417084] omap_i2c 44e0b000.i2c: bus 0 rev0.12 at 100 kHz
[ 1.508249] random: fast init done
[ 1.513280] omap_i2c 4802a000.i2c: bus 1 rev0.12 at 100 kHz
[ 1.520487] hctosys: unable to open rtc device (rtc0)
[ 1.526297] ALSA device list:
[ 1.529289] No soundcards found.
[ 2.082932] VFS: Mounted root (jffs2 filesystem) on device 31:5.
[ 2.090413] devtmpfs: mounted
[ 2.095826] Freeing unused kernel memory: 1024K
Everything looks fine until loading nor driver from here
Starting logging: OK
[ 2.687522] ------------[ cut here ]------------
[ 2.698920] WARNING: CPU: 0 PID: 97 at drivers/mtd/spi-nor/spi-nor.c:1177 spi_nor_write+0x13c/0x1b8
[ 2.708287] Writing at offset 168 into a NOR page. Writing partial pages may decrease reliability and increase wear of NOR flash.[ 2.719874] Modules linked in:
[ 2.722995] CPU: 0 PID: 97 Comm: touch Not tainted 4.9.59 #1
[ 2.728680] Hardware name: Generic AM43 (Flattened Device Tree)
[ 2.735256] Backtrace:
[ 2.737833] [<c010b7d0>] (dump_backtrace) from [<c010ba8c>] (show_stack+0x18/0x1c)
[ 2.745831] r7:00000009 r6:00000000 r5:c09e2b38 r4:eead9c00
[ 2.751736] [<c010ba74>] (show_stack) from [<c03d5df4>] (dump_stack+0x24/0x28)
[ 2.759256] [<c03d5dd0>] (dump_stack) from [<c012d9a0>] (__warn+0xe8/0x100)
[ 2.766415] [<c012d8b8>] (__warn) from [<c012d9f8>] (warn_slowpath_fmt+0x40/0x48)
[ 2.774069] r9:00000000 r8:eead9cec r7:00000044 r6:ee954018 r5:00000000 r4:c09e2bbc
[ 2.781864] [<c012d9bc>] (warn_slowpath_fmt) from [<c0582d44>] (spi_nor_write+0x13c/0x1b8)
[ 2.790353] r3:000000a8 r2:c09e2bbc
[ 2.794067] r4:000000a8
[ 2.796634] [<c0582c08>] (spi_nor_write) from [<c056a2e8>] (part_write+0x48/0x50)
[ 2.804337] r10:eead9cec r9:00000000 r8:002b97a8 r7:00000000 r6:00000000 r5:00000000
[ 2.812322] r4:00920000
[ 2.814878] [<c056a2a0>] (part_write) from [<c056691c>] (mtd_write+0x88/0xa0)
[ 2.822216] r5:00000000 r4:c056a2a0
[ 2.825816] [<c0566894>] (mtd_write) from [<c0566f38>] (mtd_writev+0xac/0x100)
[ 2.833238] r7:00000001 r6:00000000 r5:00000001 r4:eead9dd0
[ 2.838946] [<c0566e8c>] (mtd_writev) from [<c034cfdc>] (jffs2_flash_direct_writev+0x28/0x30)
[ 2.847694] r10:00000044 r9:eead9dd0 r8:002b97a8 r7:eea2a800 r6:eea90ca0 r5:00000000
[ 2.855677] r4:002b97a8
[ 2.858237] [<c034cfb4>] (jffs2_flash_direct_writev) from [<c034ef80>] (jffs2_flash_writev+0x454/0x4f0)
[ 2.867842] r5:00000000 r4:002b97a8
[ 2.871445] [<c034eb2c>] (jffs2_flash_writev) from [<c0347518>] (jffs2_write_dnode+0xec/0x344)
[ 2.880301] r10:00000044 r9:00000000 r8:eeca95a0 r7:eea2a800 r6:eea90ca0 r5:eea2f100
[ 2.888296] r4:002b97a8
[ 2.890853] [<c034742c>] (jffs2_write_dnode) from [<c034c028>] (jffs2_do_setattr+0x290/0x574)
[ 2.899592] r10:00000000 r9:eea2a800 r8:eead9ec8 r7:00000000 r6:00000000 r5:eeca95c8
[ 2.907577] r4:eea2f100
[ 2.910133] [<c034bd98>] (jffs2_do_setattr) from [<c034c338>] (jffs2_setattr+0x2c/0x50)
[ 2.918345] r10:eead9ec8 r9:00000000 r8:eead9ec4 r7:eeca6aa0 r6:eead9e88 r5:eeca95c8
[ 2.926326] r4:eead9ec8
[ 2.928894] [<c034c30c>] (jffs2_setattr) from [<c0235090>] (notify_change+0x1cc/0x3e4)
[ 2.937020] r5:eeca95c8 r4:00020070
[ 2.940632] [<c0234ec4>] (notify_change) from [<c0249484>] (utimes_common+0xac/0x178)
[ 2.948675] r10:00000000 r9:bedf1f7a r8:ffffff9c r7:00000000 r6:eead9f28 r5:eeca962c
[ 2.956658] r4:00000000
[ 2.959215] [<c02493d8>] (utimes_common) from [<c0249608>] (do_utimes+0xb8/0x150)
[ 2.966901] r7:00000000 r6:00000000 r5:00000001 r4:00000000
[ 2.972726] [<c0249550>] (do_utimes) from [<c0249858>] (SyS_futimesat+0xd0/0x10c)
[ 2.980248] r9:eead8000 r8:c0107e84 r7:0000010d r6:00000000 r5:bedf1f7a r4:ffffff9c
[ 2.988205] [<c0249788>] (SyS_futimesat) from [<c02498b0>] (SyS_utimes+0x1c/0x20)
[ 2.995840] r6:00000000 r5:bedf1c90 r4:bedf1e98
[ 3.000494] [<c0249894>] (SyS_utimes) from [<c0107cc0>] (ret_fast_syscall+0x0/0x3c)
[ 3.008454] ---[ end trace cd06a67d3ded56a6 ]---
Initializing random number generator... done.
Even the error message dumped, system was able to boot to filesystem. But somehow all the drivers weren't be able to load currently.
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