czw., 6 cze 2019 o 17:58 Adam Ford <aford...@gmail.com> napisaĆ(a): > > On Thu, Jun 6, 2019 at 10:50 AM Bartosz Golaszewski <b...@bgdev.pl> wrote: > > > > From: Bartosz Golaszewski <bgolaszew...@baylibre.com> > > > > This series enables the driver model for NAND on davinci da850 boards. > > > > The first patch is a simple tweak for an unnecessarily exported function. > > > > The second patch extends the NAND driver to support both legacy and > > driver-model users. For now we don't parse the device-tree as it's a > > bit complicated on da850, namely: the nand node is a child of the > > aemif node for which we don't have a driver in u-boot (unlike on linux > > where the aemif driver populates all its subnodes). In order for the > > nand device to be probed, we're adding a dummy node to the u-boot dts > > extensions with an appropriate compatible. > > > > Two last patches enable driver model for NAND on da850-lcdk and da850-evm. > > We don't enable the driver model in SPL as first: the patches enabling > > CONFIG_SPL_DM are still waiting to be merged, and second: the > > nand_spl_simple driver used by davinci SPL doesn't support driver model > > users. This is planned for future series once some basic support is > > merged. > > What happens when the board is booting SPL from NAND? Will it still > work as expected? I know the da850-evm has at least one configuration > which this is intended to boot from NAND instead of the default SPI > flash. >
The driver works just like before in SPL. The support for the driver model is added incrementally. In fact I tested it on da850-lcdk with SPL loading u-boot from NAND. On da850-evm we could probably enable driver-model in SPL as well for NAND, but I prefer to do it at once for both boards. Bart > adam > > > > > Bartosz Golaszewski (4): > > nand: davinci: make davinci_nand_init() static > > nand: davinci: add support for driver model > > davinci: omapl138-lcdk: enable driver model for NAND > > davinci: da850-evm: enable driver model for NAND > > > > arch/arm/dts/da850-evm-u-boot.dtsi | 4 ++ > > arch/arm/dts/da850-lcdk-u-boot.dtsi | 4 ++ > > arch/arm/include/asm/ti-common/davinci_nand.h | 2 - > > configs/da850evm_defconfig | 1 + > > configs/da850evm_direct_nor_defconfig | 1 + > > configs/da850evm_nand_defconfig | 1 + > > configs/omapl138_lcdk_defconfig | 1 + > > drivers/mtd/nand/raw/davinci_nand.c | 48 ++++++++++++++++++- > > include/configs/da850evm.h | 4 ++ > > include/configs/omapl138_lcdk.h | 4 ++ > > 10 files changed, 66 insertions(+), 4 deletions(-) > > > > -- > > 2.21.0 > > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot