RE: Discrepancy/Bug with LVDSPLL_TST register in VDC5 sample
So, it turns our the current version 2.00 hardware manual is correct, the value is supposed to be 0x10.It appears the early hardware manuals had 8, but then later it was changed to 0x10.Chris
View ArticleDiscrepancy/Bug with LVDSPLL_TST register in VDC5 sample
I'm trying to adapt the VDC5 sample to our custom hardware and have discovered a discrepancy between the RZ User's Manual and the sample code.In Section 40 (p.40-5) of the User's Manual, the 6-bit...
View ArticleRZ_A1H_QSPI_LOADER support for Micron(N25Q512A)
Whether RZ_A1H_QSPI_LOADER boot loader sample application will support MICRON (N25Q512) QSPI Flash ROM for bare metal application development?I am referring DS-5 sample application RZ_A1H_QSPI_LOADER...
View ArticleRE: USB Host Functionality
Both USB ch0 and ch1 can be either Device or Host.See file:linux-3.14/arch/arm/mach-shmobile/board-rskrza1.cYou can set the USB host/function at boot...
View ArticleUSB Host Functionality
Hi all,In RZRSK EVK USB Host Connector in interfaced with USB Channel1, but in custom design USB Host is interfaced with USB channel0. In RZRSK EVK USB Mass storage is detecting but in custom design...
View ArticleRE: The Pros and Cons of caching
jdseymour,Have you looked at these documents?documentation.renesas.com/.../r01uh0403ej0200_rz_a1h.pdfinfocenter.arm.com/.../DDI0246F_l2c310_r3p2_trm.pdfMike ClementsRenesasRulz Moderator
View ArticleThe Pros and Cons of caching
I recently discovered that frame buffers used for an LCD should not be cached (I experienced bad groups of pixels).Since memory in our environment (RZ/A1M without any external RAM) is tight, I may need...
View ArticleRE: The Pros and Cons of caching
The internal RAM is mirror to two different internal addresses: 0x2xxxxxxx and 0x6xxxxxxx. So you could set up one area for caching and and the other non-cache. Then just do all you frame buffer...
View ArticleRE: The Pros and Cons of caching
Thanks, Chris. That would be a good idea - but unfortunately, we're using the A1M part and the address space starting at 0x60000000 is not available to us.In the end, I've decided that caching RAM is...
View ArticleRE: V1 and V2 Hardware
When the V2 boards were first produced, the resistors were incorrect, so the note in the BSP was added. Then, the board manufacture started fixing the resistors during assembly, but kept putting "V2"...
View ArticleV1 and V2 Hardware
HiIn the user_guide available in RSKRZA1-BSP-V1.2.0/doc section 1 mentions about the removal of certain resistors. When we received the RSK-RZA1H V2 board, and checked it, all these were fixed. We did...
View ArticleRE: QSPI_FLASH_ISSUE
The title of this post is "QSPI_FLASH_ISSUE", but it seems your issue is with parallel NOR flash not QSPI.I assume your issue is with "Flash: ## Unknown flash on Bank 1 - Size = 0x00000000 = 0 MB"
View ArticleRE: QSPI_FLASH_ISSUE
Hi Chris Brandt,Thanks for response.but when we load the same images into RZRSK-EVK with QSPI boot mode, the flash size is 64MB and the boot log message is as follows,U-Boot 2015.01 (Mar 23 2016 -...
View ArticleRE: QSPI_FLASH_ISSUE
Hello,I don't really understand your problem. Where is your issue ?If the problem is why there is "Flash: 64 MiB" with RZ RSK and why there is "Flash: ## Unknown flash on Bank 1 - Size = 0x00000000 = 0...
View ArticleRE: QSPI_FLASH_ISSUE
Hi Dylan,As you said, i did the same this in include/configs/rskrza1.h file. and then i got some error's when i rebuild the u-boot source. as followsBuild Environment set============== Building u-boot...
View ArticleRE: QSPI_FLASH_ISSUE
Hi Dylan,As you said, i did the same this in include/configs/rskrza1.h file. and then i got some error's when i rebuild the u-boot source. as followsBuild Environment set============== Building u-boot...
View ArticleRE: QSPI_FLASH_ISSUE
Where did you define CONFIG_SYS_NO_FLASH in your file ?Somewhere in your file you should have something like :/* NOR Flash */#ifndef CONFIG_SYS_NO_FLASH#define CONFIG_SYS_FLASH_BASE 0x00000000#define...
View ArticleRE: QSPI_FLASH_ISSUE
Yes, the location of CONFIG_SYS_NO_FLASH is important. You have to define that before you #include <config_cmd_default.h>For example, I ported the BSP to another board that did not have parallel...
View ArticleQSPI_FLASH_ISSUE
Hi all,In RZRSK : After loading the images at POR and we are ran the command "cat /proc/mtd" and we got as follows:dev: size erasesize namemtd0: 03800000 04000000 "qspi_rootfs"mtd1: 00080000...
View ArticleRE: AXFS prebuilt image
In the BSP, Buildroot creates a root file system (output/buildroot-2014.05/output/target) and also packages it up as a squashfs.Then, you use the BSP command: ./build.sh axfswhich will take the...
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