From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski Date: Mon, 7 Jan 2019 22:59:44 +0100 Subject: [U-Boot] [PATCH v1 0/4] arm: socfgpa: support of-platdata In-Reply-To: <20190107211423.10151-1-simon.k.r.goldschmidt@gmail.com> References: <20190107211423.10151-1-simon.k.r.goldschmidt@gmail.com> Message-ID: <20190107225944.57df11a8@jawa> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Simon, > This is an initial attempt to support OF_PLATDATA for socfpga gen5. > > There are two motivations for this: > a) reduce code size to eventually support secure boot (where SPL has > to authenticate the next stage by loading/checking U-Boot from a FIT > image) > b) to support the cyclone 5 boot ROM's CRC check on the SPL in SRAM > (on warm-restart), all bytes to check need to be in one piece. With > OF_SEPARATE, this is not the case (.bss is between .rodata and the > DTB). Since OF_EMBEDDED has been discouraged, OF_PLATDATA seems to > be a good solution. I'm not an expert with SOCFPGA nor your application, but maybe selecting: "SPL_SEPARATE_BSS" would fix your issue? This option allows putting on IMX6 SPL the DTB blob into OCRAM (internal RAM), before the DDR is setup (so it would be possible to calculate CRC). I've stumbled upon such issue when I wanted to switch from OF_EMBEDDED to OF_SEPARATE. > > This series enables booting from MMC with OF_PLATDATA. Booting from > SPI does not yet work (I'm working on that, but it's tougher than > expected). > > Tested on the socrates board. To use it: > - use socfpga_socrates_defconfig > - disable CONFIG_SPL_SPI_FLASH_SUPPORT, CONFIG_SPL_SPI_SUPPORT and > CONFIG_SPL_DM_RESET (those don't work yet) > - enable CONFIG_DESIGNWARE_SERIAL (required for console) > > > Simon Goldschmidt (4): > arm: socfpga: imply SPL config instead of select > arm: socfpga: fix compiling with OF_PLATDATA > serial: add an of-platdata driver for "snps,dw-apb-uart" > mmc: socfpga: support of-platdata > > arch/arm/Kconfig | 4 ++-- > arch/arm/mach-socfpga/misc.c | 2 +- > drivers/mmc/socfpga_dw_mmc.c | 28 ++++++++++++++++++++--- > drivers/serial/Kconfig | 10 ++++++++ > drivers/serial/Makefile | 1 + > drivers/serial/serial_dw_apb.c | 42 > ++++++++++++++++++++++++++++++++++ 6 files changed, 81 insertions(+), > 6 deletions(-) create mode 100644 drivers/serial/serial_dw_apb.c > Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 488 bytes Desc: OpenPGP digital signature URL: