Hi Angelo, On 06/10/17 09:06, Angelo Dureghello wrote: > jfyi, i finally have dspi working on mcf54415. > > [ 8.310000] m25p80 spi0.1: is25lp128 (16384 Kbytes) > [ 8.320000] Creating 3 MTD partitions on "is25lp128": > [ 8.330000] 0x000000000000-0x000000100000 : "U-Boot (1024K)" > [ 9.750000] ftl_cs: FTL header not found. > [ 9.800000] 0x000000100000-0x000000800000 : "Kernel+initramfs (7168K)" > [ 11.230000] ftl_cs: FTL header not found. > [ 11.270000] 0x000000800000-0x000001000000 : "Flash Free Space (8192K)" > [ 12.010000] random: crng init done > [ 12.710000] ftl_cs: FTL header not found. > [ 12.800000] Freeing unused kernel memory: 264K > > > / # cat /proc/mtd > dev: size erasesize name > mtd0: 00100000 00001000 "U-Boot (1024K)" > mtd1: 00700000 00001000 "Kernel+initramfs (7168K)" > mtd2: 00800000 00001000 "Flash Free Space (8192K)" > / #
Nice work! > Changes to spi-fsl-dspi.c driver is minimal, just mainly had to > get some few settings from board c file. > > Now the issue is how to proceed, likely, spi-list gouys would complain > i add board/platform support to the driver. > > Is it better i send a patch for this stmark2 board.c before ? Sure, start with that. I don't mind if you send spi changes relevant to the 54411 here either for review. Regards Greg > Regards, > Angelo Dureghello > > On 06/07/2017 15:07, Greg Ungerer wrote: >> Hi Angelo, >> >> On 06/07/17 18:36, angelo wrote: >>> i designed here a new board with mcf54415. Testing a first mainline kernel. >>> I would like to load a cramfs rootfs from SPI NOR (mtd, ftl) but actually >>> i don't see the SPI NOR flash detected from dmesg. >>> >>> Next future step then would be load rootfs from SD. >>> >>> Seems there is no selectable driver for >>> >>> - SPI controller >>> - SD (MMC) controller >>> >>> Those should be similar to existing drivers of some other freescale chip, >>> or some new implementation is required ? Attaching dmesg. >> >> Most other ColdFire parts use the QSPI hardware module, and its driver >> is at drivers/spi/spi-coldfire-qspi.c. But, looking at the hardware >> reference manual for the mcf5441x family it contains a DSPI hardware >> module - and it looks quite different. >> >> That DSPI module looks to be similar to the one in the Freescale iMX >> parts, and its driver is at drivers/spi/spi-fsl-dspi.c. I don't know >> that anyone has used that on ColdFire with the mcf5441x parts, >> but that is where you should start I think. >> >> I haven't used any SD/MMC drivers on ColdFire so no advice on where >> to look for that one. >> >> If you are feeling adventurous you may want to look at: >> >> https://www.spinics.net/lists/linux-m68k/msg10057.html >> >> With a reasonably recent kernel you don't even need to generate a >> different user space filesystem and binaries. You can run your flat >> format non-MMU binaries on an MMU configured ColdFire system (as long >> as you have CONFIG_BINFMT_FLAT=y in your kernel config). I would love >> to be able to push this patch to mainline. >> >> Regards >> Greg >> >> >> >>> Regards, >>> Angelo Dureghello >>> >>> >>> U-Boot 2017.05-00709-g9d9f074dfe-dirty (Jul 02 2017 - 19:50:16 +0200) >>> >>> CPU: Freescale MCF54410 (Mask:9f Version:2) >>> CPU CLK 240 MHz BUS CLK 120 MHz FLB CLK 60 MHz >>> INP CLK 30 MHz VCO CLK 480 MHz >>> SPI: ready >>> DRAM: 128 MiB >>> SF: Detected is25lp128 with page size 256 Bytes, erase size 64 KiB, total >>> 16 MiB >>> In: serial >>> Out: serial >>> Err: serial >>> Hit any key to stop autoboot: 0 >>> SF: Detected is25lp128 with page size 256 Bytes, erase size 64 KiB, total >>> 16 MiB >>> device 0 offset 0x100000, size 0x200000 >>> SF: 2097152 bytes @ 0x100000 Read: OK >>> ## Booting kernel from Legacy Image at 40001000 ... >>> Image Name: mainline kernel >>> Created: 2017-07-05 23:58:53 UTC >>> Image Type: M68K Linux Kernel Image (uncompressed) >>> Data Size: 1642496 Bytes = 1.6 MiB >>> Load Address: 40001000 >>> Entry Point: 40001000 >>> Verifying Checksum ... OK >>> Loading Kernel Image ... OK >>> [ 0.000000] Linux version 4.10.0-rc2stmark2-001-00020-g0f64df301240 >>> (angelo@jerusalem) (gcc version 4.9.0 (crosstools-sysam-2016.04.16) ) #16 >>> Thu Jul 6 01:58:52 CEST 2017 >>> [ 0.000000] uClinux with CPU COLDFIRE(m5441x) >>> [ 0.000000] COLDFIRE port done by Greg Ungerer, [email protected] >>> [ 0.000000] Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff >>> Dionne >>> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total >>> pages: 16320 >>> [ 0.000000] Kernel command line: console=ttyS0,115200 >>> root=/dev/mtdblock3 mtdparts=spi-flash.0:1m(u-boot),7m(kernel),-(rootfs) rw >>> rootwait >>> [ 0.000000] PID hash table entries: 512 (order: -2, 2048 bytes) >>> [ 0.000000] Dentry cache hash table entries: 16384 (order: 3, 65536 >>> bytes) >>> [ 0.000000] Inode-cache hash table entries: 8192 (order: 2, 32768 bytes) >>> [ 0.000000] Memory: 128664K/131072K available (1154K kernel code, 92K >>> rwdata, 304K rodata, 48K init, 121K bss, 2408K reserved, 0K cma-reserved) >>> [ 0.000000] Virtual kernel memory layout: >>> [ 0.000000] vector : 0x40000000 - 0x40000400 ( 1 KiB) >>> [ 0.000000] kmap : 0x00000000 - 0xffffffff (4095 MiB) >>> [ 0.000000] vmalloc : 0x00000000 - 0xfffff ----- Message truncated >>> ----- >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-m68k" in >>> the body of a message to [email protected] >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >> > -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
