October 2019 - U-Boot

[U-Boot] cfb_console.c: DM_VIDEO conversion questions/suggestions
by Igor Opaniuk 18 Nov '21

18 Nov '21

Hi everyone, I've finally started looking into the cfb_console.c driver and it's conversion to DM_VIDEO after our initial discussion [1]. Unfortunately I've a bit underestimated the amount of effort that should be done, as mxsfb.c in the Linux mainline obviously pulls the whole core fb subsystem (drivers/video/fbdev/core), which can take a while and frankly I doubt that this is a proper way to do things here. Taking into account that the deadline for DM_VIDEO conversion is 2019.07, it's unlikely that we will manage to do the full conversions this cfb_console driver and all dependent hw specific drivers in a proper way (where we can provide information about videomodes as properties in a proper nodes in DT). Currently the init chain for fb stuff in U-boot (on the other hand, in the Linux, hw specific driver is probed initially, then they trigger fb common routines that are needed from `video/fbdev/core`): stdio_add_devices() -> ./common/stdio.c -> drv_video_init () (drivers/cfb_console.c) - > video_hw_init (particular hw backend, which was statically linked at compile time with a proper video_hw_init() implementation, for example look into mxsfb.c) 2 ways of conversion that come to my mind: 1. Start with simple DM wrappers in cfb_console.c, and introduce dumb DT nodes so the device at least can be probed. All video configuration will be stored the same way as before in the U-boot env (for example, "videomode=video=ctfb:x:640,y:480,depth:18,pclk:39722,le:48,ri:16,up:33,lo:10,hs:96,vs:2,sync:0,vmode:0\0"). Then, step by step, driver by driver, we can move some properties to DT and try to sync Linux/U-boot video DT nodes (at least avoid divergence of tree nodes, so Linux/U-boot video-related DT nodes conform to each other). Yes, this is kind of dirty workaround, but at least this something we can start with, and with minimal amount of intrusive changes. 2. Perform full conversion, where everything works the same way as in Linux kernel. Initially I thought that it could be the proper way to go, but taking into account all differences in the implementation of fb in U-boot/Linux (even the way how the drivers are initialized), I think we will just end up pulling the whole big piece from the Linux kernel, that will definitely take a while (especially further support of this code base, testing/fixing issues etc.). Just to be aware about the amount of effort that should be done: : u-boot.git$ grep -e CONFIG_CFB_CONSOLE -r ./configs/ ./configs/T1042RDB_PI_SDCARD_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042D4RDB_SDCARD_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042RDB_PI_NAND_SECURE_BOOT_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/nokia_rx51_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042D4RDB_NAND_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042RDB_PI_SPIFLASH_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042RDB_PI_NAND_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042D4RDB_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/T1042RDB_PI_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/eb_cpu5282_internal_defconfig:# CONFIG_CFB_CONSOLE is not set ./configs/T1042D4RDB_SPIFLASH_defconfig:CONFIG_CFB_CONSOLE_ANSI=y ./configs/eb_cpu5282_defconfig:# CONFIG_CFB_CONSOLE is not set ./configs/T1042D4RDB_SECURE_BOOT_defconfig:CONFIG_CFB_CONSOLE_ANSI=y Additional Kconfig symbols, that depend on CFB_CONSOLE: * VGA_AS_SINGLE_DEVICE * CONSOLE_EXTRA_INFO * CONSOLE_SCROLL_LINES * SYS_CONSOLE_BG_COL * SYS_CONSOLE_FG_COL Drivers, that don't imply CFG_CONSOLE, but are used alongside with cfb_console.c (kind of particular hw backend driver for fb console): * mxsfb.c * mb862xx.c * sunxi_display.c * ati_radeon_fb.c * fsl_dcu_fb.c * omap3_dss.c * da8xx-fb.c Looking forward to your suggestions/recommendations here (and let me know if I missed something), thanks! [1] https://lists.denx.de/pipermail/u-boot/2019-April/365506.html -- Best regards - Freundliche Grüsse - Meilleures salutations Igor Opaniuk mailto: igor.opaniuk(a)gmail.com skype: igor.opanyuk +380 (93) 836 40 67 http://ua.linkedin.com/in/iopaniuk

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[U-Boot] [PATCH v3 00/20] Bring NAND support to Nintendo NES Classic
by Miquel Raynal 07 Jul '21

07 Jul '21

Hello, This series first adds fixes and enhancements to sunxi NAND drivers (SPL and U-Boot). Once this is done, the SPL NAND driver is converted to use PIO instead of DMA with the goal to support all SoCs with this IP without the need for DMA-related code. Finally, NAND support is added to Nintendo NES Classic through Kconfig and DT additions. Thanks, Miquèl Changes since v2: ================= - Added Boris and Maxime Acked-by tags. - Removed extra space in nand_reset_column() - Fixed the useless wait period on failure in nand_change_column(). - Changed the title "sunxi: allow NAND support to be compiled for..." (removed the "in SPL" precision which is wrong). - Enbraced the deassertion of the reset line by #if statements about the SoCs in use. Wolfgang Denk made a comment on my proposal but I could not find a better solution, so I kept it for now. - s/alwinner,[pin,functions]/[pin,functions]/ in the DT. - Change Alwinner-specific parts in the SPL to generic sentences. Changes since v1: ================= All: ---- - Enhance all commit messages. - Rebased on top of master branch (I should have done that earlier but I forgot I was on an old revision). Fix binman_sym output check --------------------------- - SPL seems to be broken for a few weeks when using raw NAND, fix it by changing the error condition. Fix strength ------------ - Add comment explaining the added line and moved the line for clarification on why it is needed. - Add forgotten Boris' Suggested-by tag. Fix second case of modulo by zero error ---------------------------------------- - Added a reference to the first occurence of this issue. Allow SPL to be compiled for sun8i platforms -------------------------------------------- - This commit is not about compiling the SPL, but the NAND support in the SPL, as corrected by Maxime. Enhancements and cleaning ------------------------- - Patch split into several logical chunks, as requested. - Removed useless udelay(1), that was added for debugging purpose. - Introduced the nand_exec_cmd() helper to mutualize code one step further. - Add an udelay(1) after changing the column to respect the minimum tCCS delay (Change Column Setup time). - Canceled moving to global scope the ecc_strength array. Use PIO instead of DMA ---------------------- - Change commit message/title. - Cancel removing NFC related definitions: they can be useful as the this IP is quite under-documented. - Merge nand_reset_column and nand_change_column (in another patch). - Moved the copy of the data after the check of the ECC status. - ECC chunks are read manually, return if the first chunk is empty only (needed for configuration research), otherwise it should not be treated as an error. Add NAND node to sun8i ---------------------- - U-Boot master branch already has this node, remove the patch. Enable NAND on NES classic -------------------------- - Change the DT cells size from 2 to 1. Add NAND support for NES classic -------------------------------- - Split in several patches, moving SPL_NAND_SUPPORT and NAND_SUNXI out of the defconfig files (NES and CHIP pro) to be automatically selected depending on NAND_SUNXI and ARCH_SUNXI. - Moved the NAND parameters to Kconfig (only for SUNXI because the tool did not work as expected, maybe due to some definitions that are not "numbers" but multiplications and sometimes use other definitions (NAND page size, 2K_SZ, etc). Miquel Raynal (20): spl: fix binman_sym output check mtd: nand: sunxi: fix ECC strength choice spl: nand: sunxi: fix second case of modulo by zero error spl: nand: sunxi: fix typo on register name spl: nand: sunxi: introduce the nand_wait_int() helper spl: nand: sunxi: introduce the nand_wait_cmd_fifo_empty() helper spl: nand: sunxi: add missing status clear spl: nand: sunxi: create an helper to handle command execution spl: nand: sunxi: ensure enough time has passed after changing the column spl: nand: sunxi: make the reset column helper more generic sunxi: spl: deassert the NAND controller reset line spl: nand: sunxi: declare the ecc_bytes array globally spl: nand: sunxi: use PIO instead of DMA sunxi: spl: remove DMA related settings of the NAND controller sunxi: allow NAND support to be compiled for sun8i platforms sunxi: dts: enable NAND on NES classic sunxi: automatically select SPL_NAND_SUPPORT in Kconfig sunxi: make NAND_SUNXI use ARCH_SUNXI as default in Kconfig sunxi: move the NAND parameters to Kconfig configs: add NAND support for NES Classic arch/arm/dts/sun8i-a23-a33.dtsi | 17 ++ .../dts/sun8i-r16-nintendo-nes-classic-edition.dts | 14 ++ arch/arm/include/asm/arch-sunxi/clock_sun6i.h | 6 + board/sunxi/board.c | 7 +- common/spl/spl.c | 10 +- configs/CHIP_pro_defconfig | 6 +- configs/Nintendo_NES_Classic_Edition_defconfig | 4 + drivers/mtd/nand/Kconfig | 26 ++- drivers/mtd/nand/sunxi_nand.c | 8 +- drivers/mtd/nand/sunxi_nand_spl.c | 242 ++++++++++----------- 10 files changed, 208 insertions(+), 132 deletions(-) -- 2.14.1

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[U-Boot] [PATCH] cmd: pxe: Use internal FDT if external one cannot be retrieved
by Anton Leontiev 02 Dec '20

02 Dec '20

From: Anton Leontiev <aleontiev(a)elvees.com> Original commit c61d94d86035 ("pxe: implement fdtdir extlinux.conf tag") states, that if FDT file cannot be retrieved then FDT packaged in firmware should be used. If FDT file cannot be retrieved and it is specified explicitly using FDT keyword then the label is skipped. If it cannot be found in FDTDIR then internal FDT is tried first. Signed-off-by: Anton Leontiev <aleontiev(a)elvees.com> --- cmd/pxe.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/cmd/pxe.c b/cmd/pxe.c index 2059975446..28390c114c 100644 --- a/cmd/pxe.c +++ b/cmd/pxe.c @@ -795,9 +795,13 @@ static int label_boot(cmd_tbl_t *cmdtp, struct pxe_label *label) int err = get_relfile_envaddr(cmdtp, fdtfile, "fdt_addr_r"); free(fdtfilefree); if (err < 0) { - printf("Skipping %s for failure retrieving fdt\n", - label->name); - goto cleanup; + bootm_argv[3] = NULL; + + if (label->fdt) { + printf("Skipping %s for failure retrieving FDT\n", + label->name); + goto cleanup; + } } } else { bootm_argv[3] = NULL; -- 2.22.1

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[U-Boot] [PATCH] Adds basic support for ProxyDHCP
by lylejfranklin＠gmail.com 02 Dec '20

02 Dec '20

From: Lyle Franklin <lylejfranklin(a)gmail.com> - ProxyDHCP allows a second DHCP server to exist alongside your main DHCP server and supply additional BOOTP related options - When u-boot sends out a DHCP request, the real DHCP server will respond with a normal response containing the new client IP address while simultaneously the ProxyDHCP server will respond with a blank client IP address and a `bootfile` option - This patch adds CONFIG_SERVERIP_FROM_PROXYDHCP (default false) to enable this behavior and CONFIG_SERVERIP_FROM_PROXYDHCP_DELAY_MS (default 100) which tells u-boot to wait additional time after receiving the main DHCP response to give the ProxyDHCP response time to arrive - The PXE spec for ProxyDHCP is more complicated than the solution added here as diagramed on page 16: http://www.pix.net/software/pxeboot/archive/pxespec.pdf: ``` DHCP Discover will be retried four times. The four timeouts are 4, 8, 16 and 32 seconds respectively. If a DHCPOFFER is received without an Option timeouts in an attempt to receive a PXE response. ``` - Adding a simple delay worked for my purposes but let me know if a more robust solution is required Signed-off-by: Lyle Franklin <lylejfranklin(a)gmail.com> --- net/Kconfig | 14 ++++++++++++++ net/bootp.c | 27 ++++++++++++++++++++++----- 2 files changed, 36 insertions(+), 5 deletions(-) diff --git a/net/Kconfig b/net/Kconfig index 68cecf75a2..e46eb7833a 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -35,4 +35,18 @@ config TFTP_BLOCKSIZE help Default TFTP block size. +config SERVERIP_FROM_PROXYDHCP + bool "Get serverip value from Proxy DHCP response" + help + Allows bootfile config to be fetched from Proxy DHCP server + while IP is obtained from main DHCP server. + +config SERVERIP_FROM_PROXYDHCP_DELAY_MS + int "# of additional milliseconds to wait for ProxyDHCP response" + default 100 + help + Amount of additional time to wait for ProxyDHCP response after + receiving response from main DHCP server. Has no effect if + SERVERIP_FROM_PROXYDHCP is false. + endif # if NET diff --git a/net/bootp.c b/net/bootp.c index 9a2b512e4a..218dfde728 100644 --- a/net/bootp.c +++ b/net/bootp.c @@ -140,10 +140,7 @@ static int check_reply_packet(uchar *pkt, unsigned dest, unsigned src, return retval; } -/* - * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet - */ -static void store_net_params(struct bootp_hdr *bp) +static void store_bootp_params(struct bootp_hdr *bp) { #if !defined(CONFIG_BOOTP_SERVERIP) struct in_addr tmp_ip; @@ -176,6 +173,16 @@ static void store_net_params(struct bootp_hdr *bp) */ if (*net_boot_file_name) env_set("bootfile", net_boot_file_name); +#endif +} + +/* + * Copy parameters of interest from BOOTP_REPLY/DHCP_OFFER packet + */ +static void store_net_params(struct bootp_hdr *bp) +{ +#if !defined(CONFIG_SERVERIP_FROM_PROXYDHCP) + store_bootp_params(bp); #endif net_copy_ip(&net_ip, &bp->bp_yiaddr); } @@ -1049,8 +1056,12 @@ static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: " "%d\n", src, dest, len, dhcp_state); - if (net_read_ip(&bp->bp_yiaddr).s_addr == 0) + if (net_read_ip(&bp->bp_yiaddr).s_addr == 0) { +#if defined(CONFIG_SERVERIP_FROM_PROXYDHCP) + store_bootp_params(bp); +#endif return; + } switch (dhcp_state) { case SELECTING: @@ -1069,6 +1080,12 @@ static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip, dhcp_packet_process_options(bp); efi_net_set_dhcp_ack(pkt, len); +#if defined(CONFIG_SERVERIP_FROM_PROXYDHCP) + if (!net_server_ip.s_addr) + udelay(CONFIG_SERVERIP_FROM_PROXYDHCP_DELAY_MS * + 1000); +#endif /* CONFIG_SERVERIP_FROM_PROXYDHCP */ + debug("TRANSITIONING TO REQUESTING STATE\n"); dhcp_state = REQUESTING; -- 2.22.0

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[U-Boot] Booting on RK3399
by Simon Glass 19 Nov '20

19 Nov '20

Hi Kever, I have a firefly-rk3399 and would like to boot it into U-Boot (as a start) from an uSD card. Are there instructions somewhere on how to do this? I gather that I need OP-TEE but not how to build it or how to put the image together. I would like to have instructions in README.rockchip if possible. I'm planning to add U-Boot support for bob and maybe kevin (both Chromebooks) but am not sure where to start. I thought the firefly might be best since it is pretty common. Thanks for any help you can provide. Regards, Simon

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[U-Boot] [PATCH v1 00/10] arm: pxa: mmc: add driver model support
by Marcel Ziswiler 30 Jun '20

30 Jun '20

This series, after some initial clean-up, ultimately adds support for the driver model (DM) in the PXA MMC driver. Marcel Ziswiler (10): mmc: add missing space before comment delimiter mmc: fsl_esdhc: annotate endifs serial: pxa: clean-up platform data include file Makefile: allow dm_mmc without of_control dm: core: gracefully handle alias seq without of kconfig: mmc: move pxa_mmc_generic to kconfig arm: pxa: mmc: add driver model support colibri_pxa270_defconfig: enable cmd_dm colibri_pxa270: add mmc platform data colibri_pxa270_defconfig: enable dm_mmc Makefile | 2 +- board/toradex/colibri_pxa270/colibri_pxa270.c | 20 ++- configs/colibri_pxa270_defconfig | 3 + configs/zipitz2_defconfig | 1 + drivers/core/read.c | 4 +- drivers/mmc/Kconfig | 8 + drivers/mmc/fsl_esdhc.c | 4 +- drivers/mmc/mmc.c | 2 +- drivers/mmc/pxa_mmc_gen.c | 160 +++++++++++++++--- include/configs/pxa-common.h | 7 - include/configs/zipitz2.h | 8 - include/dm/platform_data/pxa_mmc_gen.h | 22 +++ include/dm/platform_data/serial_pxa.h | 8 +- include/dm/read.h | 4 + scripts/config_whitelist.txt | 1 - 15 files changed, 196 insertions(+), 58 deletions(-) create mode 100644 include/dm/platform_data/pxa_mmc_gen.h -- 2.21.0

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[U-Boot] [PATCH v2 00/16] Add Intel Stratix 10 SoC support
by Ley Foon Tan 11 Jun '20

11 Jun '20

This is 2nd version of patchset to adds support for Intel Stratix 10 SoC. This patchset is work on top of patchset in [1]. Changes: - update base addresses header - use reset framework for periperhals (16550 UART, MMC, EMAC) - change to use serial DM driver - move bridge command to misc common driver and reuse for other platforms - rework board_init_f() in SPL - update S10 dts and dtsi - Mailbox: - change to use register offset to access register instead of register structure - rename function with __xxx prefix - DDR: - rework DDR driver - change to use register offset to access register instead of register structure - remove union bitwise structure - use wait_for_bit to poll Patchset history: [v1]: https://patchwork.ozlabs.org/cover/900499/ [1]: https://patchwork.ozlabs.org/cover/910018/ Ley Foon Tan (16): arm: socfpga: stratix10: Add watchdog and firewall base addresses arm: socfpga: stratix10: Add clock manager driver for Stratix10 SoC arm: socfpga: stratix10: Add reset manager driver for Stratix10 SoC arm: socfpga: stratix10: Add pinmux support for Stratix10 SoC arm: socfpga: misc: Add CONFIG_SYS_L2_PL310 switch arm: socfpga: misc: Move bridge command to misc common arm: socfpga: stratix10: Add misc support for Stratix10 SoC arm: socfpga: stratix10: Add mailbox support for Stratix10 SoC arm: socfpga: stratix10: Add MMU support for Stratix10 SoC arm: socfpga: Restructure the SPL file arm: socfpga: stratix10: Add SPL driver for Stratix10 SoC arm: socfpga: stratix10: Add timer support for Stratix10 SoC ddr: altera: stratix10: Add DDR support for Stratix10 SoC board: altera: stratix10: Add socdk board support for Stratix10 SoC arm: dts: socfpga: stratix10: update dtsi and dts arm: socfpga: stratix10: Enable Stratix10 SoC build arch/arm/Kconfig | 9 +- arch/arm/dts/socfpga_stratix10.dtsi | 22 +- arch/arm/dts/socfpga_stratix10_socdk.dts | 3 + arch/arm/mach-socfpga/Kconfig | 16 + arch/arm/mach-socfpga/Makefile | 23 +- arch/arm/mach-socfpga/clock_manager.c | 4 +- arch/arm/mach-socfpga/clock_manager_s10.c | 380 +++++++++++++++++++ arch/arm/mach-socfpga/include/mach/base_addr_s10.h | 11 + arch/arm/mach-socfpga/include/mach/clock_manager.h | 2 + .../mach-socfpga/include/mach/clock_manager_s10.h | 210 +++++++++++ arch/arm/mach-socfpga/include/mach/firewall_s10.h | 120 ++++++ arch/arm/mach-socfpga/include/mach/handoff_s10.h | 34 ++ arch/arm/mach-socfpga/include/mach/mailbox_s10.h | 144 ++++++++ arch/arm/mach-socfpga/include/mach/misc.h | 2 + arch/arm/mach-socfpga/include/mach/reset_manager.h | 2 + .../mach-socfpga/include/mach/reset_manager_s10.h | 116 ++++++ arch/arm/mach-socfpga/include/mach/sdram_s10.h | 183 +++++++++ .../arm/mach-socfpga/include/mach/system_manager.h | 5 +- .../mach-socfpga/include/mach/system_manager_s10.h | 176 +++++++++ arch/arm/mach-socfpga/mailbox_s10.c | 380 +++++++++++++++++++ arch/arm/mach-socfpga/misc.c | 34 ++ arch/arm/mach-socfpga/misc_gen5.c | 26 +-- arch/arm/mach-socfpga/misc_s10.c | 133 +++++++ arch/arm/mach-socfpga/mmu-arm64_s10.c | 71 ++++ arch/arm/mach-socfpga/reset_manager.c | 13 + arch/arm/mach-socfpga/reset_manager_s10.c | 140 +++++++ arch/arm/mach-socfpga/spl_a10.c | 105 ++++++ arch/arm/mach-socfpga/{spl.c => spl_gen5.c} | 57 +--- arch/arm/mach-socfpga/spl_s10.c | 199 ++++++++++ arch/arm/mach-socfpga/system_manager_s10.c | 91 +++++ arch/arm/mach-socfpga/timer_s10.c | 26 ++ arch/arm/mach-socfpga/wrap_pinmux_config_s10.c | 56 +++ arch/arm/mach-socfpga/wrap_pll_config_s10.c | 59 +++ board/altera/stratix10-socdk/MAINTAINERS | 7 + board/altera/stratix10-socdk/Makefile | 7 + board/altera/stratix10-socdk/socfpga.c | 7 + configs/socfpga_stratix10_defconfig | 58 +++ drivers/ddr/altera/Makefile | 1 + drivers/ddr/altera/sdram_s10.c | 388 ++++++++++++++++++++ include/configs/socfpga_stratix10_socdk.h | 222 +++++++++++ 40 files changed, 3459 insertions(+), 83 deletions(-) create mode 100644 arch/arm/mach-socfpga/clock_manager_s10.c create mode 100644 arch/arm/mach-socfpga/include/mach/clock_manager_s10.h create mode 100644 arch/arm/mach-socfpga/include/mach/firewall_s10.h create mode 100644 arch/arm/mach-socfpga/include/mach/handoff_s10.h create mode 100644 arch/arm/mach-socfpga/include/mach/mailbox_s10.h create mode 100644 arch/arm/mach-socfpga/include/mach/reset_manager_s10.h create mode 100644 arch/arm/mach-socfpga/include/mach/sdram_s10.h create mode 100644 arch/arm/mach-socfpga/include/mach/system_manager_s10.h create mode 100644 arch/arm/mach-socfpga/mailbox_s10.c create mode 100644 arch/arm/mach-socfpga/misc_s10.c create mode 100644 arch/arm/mach-socfpga/mmu-arm64_s10.c create mode 100644 arch/arm/mach-socfpga/reset_manager_s10.c create mode 100644 arch/arm/mach-socfpga/spl_a10.c rename arch/arm/mach-socfpga/{spl.c => spl_gen5.c} (82%) create mode 100644 arch/arm/mach-socfpga/spl_s10.c create mode 100644 arch/arm/mach-socfpga/system_manager_s10.c create mode 100644 arch/arm/mach-socfpga/timer_s10.c create mode 100644 arch/arm/mach-socfpga/wrap_pinmux_config_s10.c create mode 100644 arch/arm/mach-socfpga/wrap_pll_config_s10.c create mode 100644 board/altera/stratix10-socdk/MAINTAINERS create mode 100644 board/altera/stratix10-socdk/Makefile create mode 100644 board/altera/stratix10-socdk/socfpga.c create mode 100644 configs/socfpga_stratix10_defconfig create mode 100644 drivers/ddr/altera/sdram_s10.c create mode 100644 include/configs/socfpga_stratix10_socdk.h

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[U-Boot] [PATCH v1 0/3] reset: Add a managed API
by Jean-Jacques Hiblot 31 May '20

31 May '20

This is the 3rd of a few series, the goal of which is to facilitate porting drivers from the linux kernel. Most of the series will be about adding managed API to existing infrastructure (GPIO, reset, phy,...) This particular series is about reset controllers. It adds a managed API, close to that of linux. The main difference is that bulk and reset_ctl are handled with different functions. Jean-Jacques Hiblot (3): drivers: reset: Handle gracefully NULL pointers drivers: reset: Add a managed API to get reset controllers from the DT test: reset: Add tests for the managed API arch/sandbox/include/asm/reset.h | 1 + drivers/reset/reset-uclass.c | 146 +++++++++++++++++++++++++---- drivers/reset/sandbox-reset-test.c | 50 ++++++++-- drivers/reset/sandbox-reset.c | 19 ++++ include/reset.h | 135 +++++++++++++++++++++++++- test/dm/reset.c | 59 ++++++++++++ 6 files changed, 387 insertions(+), 23 deletions(-) -- 2.17.1

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[U-Boot] [PATCH 0/2] misc: i2c_eeprom: add paritioning and size query
by Robert Beckett 28 May '20

28 May '20

Add ability to specify paritions for eeprom in device tree, and query eeprom device sizes. Each partition creates a child device, allowing board code to find the eeprom parition by name. Robert Beckett (2): misc: i2c_eeprom: add fixed partitions support misc: i2c_eeprom: add size query drivers/misc/i2c_eeprom.c | 243 +++++++++++++++++++++++++++++++++++--- include/i2c_eeprom.h | 12 ++ 2 files changed, 236 insertions(+), 19 deletions(-) -- 2.20.1

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[U-Boot] u-boot Marvell ethernet switch development
by Dennis Jacobs 26 May '20

26 May '20

Dear U-boot mailing list, Its the first time I make use of this U-boot mailing list. I am here for a problem I am having recently with u-boot which is part of my graduation project. I am developing firmware for a Marvell Ethernet switch chip (98DX3336) on the RD-XC3-24G4XG-B (Marvell Ethernet switch). Marvell has provided me with U-boot binary files for UART, SPI etc. I managed to load the U-boot UART binary file trough the UART interface. Showing: [cid:image003.png@01D3E22C.D21A6560] Ok so that is good... now I need to set up my own u-boot environment to add some changes. So I did. I Downloaded u-boot 2013.01 and added marvell configurations. I was able to compile and load the U-boot Uart binary trough the UART interface. The terminal is showing the following: [cid:image004.png@01D3E22D.C73E7040] So ok its loads! But now... I can not perform any commands. All commands are Unknown... So what I did was checking the configurations and I found out that I have set the CMD configurations. Like CMD_NET etc etc [cid:image005.png@01D3E22E.7D8A6070] Anny one that could help me here? I would really appreciate it. I am struggling with this problem for almost 2 full days now. Actions I have been taken - Tested if help command was realy executed and no other invisible fragments where added. - Tested the compilation with 7 different armv7-marvell cross compilers Left binary is the working one the second binary is mine. It only differs 26 bytes. I noticed that a different cross compiler also changes the size. Sometime more sometimes less. All of the binarys I compiled where executing correctly but not reacting on anny commands [cid:image006.png@01D3E22F.61EE8C00] Please help me. Kind regards, Dennis Jacobs Designer [Prodrive B.V.]<http://www.prodrive-technologies.com/> Mobile +31 62 57 28 194 Phone +31 40 26 76 200 www.prodrive-technologies.com<http://www.prodrive-technologies.com> [cid:image002.png@01D3E22B.A33384D0] Disclaimer: The content of this e-mail is intended solely for the use of the Individual or entity to whom it is addressed. If you have received this communication in error, be aware that forwarding it, copying it, or in any way disclosing its content to any other person, is strictly prohibited. If you have received this communication in error, please notify the author by replying to this e-mail immediately.

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