Hello Alexandre, On Mon, Nov 12, 2018 at 02:31:07PM +0100, Alexandre Belloni wrote: > Switch at91sam9x5 boards to the new PMC clock bindings.
This patch results in a broken dtb for my AriettaG25[1]. It compiles fine, but booting results in: SD/MMC: dt blob: Read file acme-arietta.dtb to 0x21000000 SD: Card Capacity: Standard SD: Specification Version 3.0X Booting zImage ...... zImage magic: 0x16f2818 is found Using device tree in place at 0x21000000 Starting linux kernel ..., machid: 0xffffffff Uncompressing Linux... done, booting the kernel. Booting Linux on physical CPU 0x0 Linux version 5.3.0-rc1+ (uwe@taurus) (gcc version 7.3.1 20180201 (OSELAS.Toolchain-2018.02.0 7-20180201)) #4 Sat Jul 27 15:47:15 CEST 2019 CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f CPU: VIVT data cache, VIVT instruction cache OF: fdt: Machine model: Acme Systems Arietta G25 printk: bootconsole [earlycon0] enabled printk: debug: ignoring loglevel setting. Memory policy: Data cache writeback On node 0 totalpages: 32768 Normal zone: 256 pages used for memmap Normal zone: 0 pages reserved Normal zone: 32768 pages, LIFO batch:7 pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 pcpu-alloc: [0] 0 Built 1 zonelists, mobility grouping on. Total pages: 32512 Kernel command line: earlyprintk ignore_loglevel mem=128M console=ttyS0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear) mem auto-init: stack:off, heap alloc:off, heap free:off Memory: 121352K/131072K available (5826K kernel code, 199K rwdata, 1892K rodata, 232K init, 125K bss, 9720K reserved, 0K cma-reserved) NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 random: get_random_bytes called from start_kernel+0x294/0x474 with crng_init=0 bad: scheduling from the idle thread! CPU: 0 PID: 0 Comm: swapper Not tainted 5.3.0-rc1+ #4 Hardware name: Atmel AT91SAM9 [<c000fc4c>] (unwind_backtrace) from [<c000d654>] (show_stack+0x10/0x18) [<c000d654>] (show_stack) from [<c059db74>] (dump_stack+0x18/0x24) [<c059db74>] (dump_stack) from [<c00386e8>] (dequeue_task_idle+0x1c/0x34) [<c00386e8>] (dequeue_task_idle) from [<c05b5818>] (__schedule+0x250/0x38c) [<c05b5818>] (__schedule) from [<c05b59e8>] (schedule+0x94/0xc8) [<c05b59e8>] (schedule) from [<c05b876c>] (schedule_hrtimeout_range_clock+0xf4/0x13c) [<c05b876c>] (schedule_hrtimeout_range_clock) from [<c05b87cc>] (schedule_hrtimeout_range+0x18/0x24) [<c05b87cc>] (schedule_hrtimeout_range) from [<c05b8240>] (usleep_range+0x70/0x98) [<c05b8240>] (usleep_range) from [<c02a18a0>] (clk_slow_rc_osc_prepare+0x28/0x34) [<c02a18a0>] (clk_slow_rc_osc_prepare) from [<c029af78>] (clk_core_prepare+0x84/0xa0) [<c029af78>] (clk_core_prepare) from [<c029af54>] (clk_core_prepare+0x60/0xa0) [<c029af54>] (clk_core_prepare) from [<c029b790>] (clk_prepare+0x1c/0x30) [<c029b790>] (clk_prepare) from [<c02f1310>] (regmap_mmio_attach_clk+0x1c/0x24) [<c02f1310>] (regmap_mmio_attach_clk) from [<c02f7a98>] (of_syscon_register+0x218/0x268) [<c02f7a98>] (of_syscon_register) from [<c02f7b18>] (syscon_node_to_regmap+0x30/0x58) [<c02f7b18>] (syscon_node_to_regmap) from [<c07d2f7c>] (at91sam9x5_pmc_setup+0x78/0x430) [<c07d2f7c>] (at91sam9x5_pmc_setup) from [<c07cfe88>] (of_clk_init+0x188/0x21c) [<c07cfe88>] (of_clk_init) from [<c07c062c>] (time_init+0x1c/0x2c) [<c07c062c>] (time_init) from [<c07bcbec>] (start_kernel+0x2c4/0x474) [<c07bcbec>] (start_kernel) from [<00000000>] (0x0) bad: scheduling from the idle thread! CPU: 0 PID: 0 Comm: swapper Not tainted 5.3.0-rc1+ #4 Hardware name: Atmel AT91SAM9 [<c000fc4c>] (unwind_backtrace) from [<c000d654>] (show_stack+0x10/0x18) [<c000d654>] (show_stack) from [<c059db74>] (dump_stack+0x18/0x24) [<c059db74>] (dump_stack) from [<c00386e8>] (dequeue_task_idle+0x1c/0x34) [<c00386e8>] (dequeue_task_idle) from [<c05b5818>] (__schedule+0x250/0x38c) [<c05b5818>] (__schedule) from [<c05b59e8>] (schedule+0x94/0xc8) [<c05b59e8>] (schedule) from [<c05b876c>] (schedule_hrtimeout_range_clock+0xf4/0x13c) [<c05b876c>] (schedule_hrtimeout_range_clock) from [<c05b87cc>] (schedule_hrtimeout_range+0x18/0x24) [<c05b87cc>] (schedule_hrtimeout_range) from [<c05b8240>] (usleep_range+0x70/0x98) [<c05b8240>] (usleep_range) from [<c02a18a0>] (clk_slow_rc_osc_prepare+0x28/0x34) [<c02a18a0>] (clk_slow_rc_osc_prepare) from [<c029af78>] (clk_core_prepare+0x84/0xa0) [<c029af78>] (clk_core_prepare) from [<c029af54>] (clk_core_prepare+0x60/0xa0) [<c029af54>] (clk_core_prepare) from [<c029b790>] (clk_prepare+0x1c/0x30) [<c029b790>] (clk_prepare) from [<c02f1310>] (regmap_mmio_attach_clk+0x1c/0x24) [<c02f1310>] (regmap_mmio_attach_clk) from [<c02f7a98>] (of_syscon_register+0x218/0x268) [<c02f7a98>] (of_syscon_register) from [<c02f7b18>] (syscon_node_to_regmap+0x30/0x58) [<c02f7b18>] (syscon_node_to_regmap) from [<c07d2f7c>] (at91sam9x5_pmc_setup+0x78/0x430) [<c07d2f7c>] (at91sam9x5_pmc_setup) from [<c07cfe88>] (of_clk_init+0x188/0x21c) [<c07cfe88>] (of_clk_init) from [<c07c062c>] (time_init+0x1c/0x2c) [<c07c062c>] (time_init) from [<c07bcbec>] (start_kernel+0x2c4/0x474) [<c07bcbec>] (start_kernel) from [<00000000>] (0x0) bad: scheduling from the idle thread! CPU: 0 PID: 0 Comm: swapper Not tainted 5.3.0-rc1+ #4 Hardware name: Atmel AT91SAM9 ... The error message repeats without end. (I obviously didn't test until the end :-), but after 10 minutes the machine still prints this message.) With the old dtb Linux 5.3-rc1 boots just fine. I assume this is not related to my dts or .config so I'm not attaching these here. If you're interested I can provide them of course. Best regards Uwe [1] https://www.acmesystems.it/arietta -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |