From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kever Yang Date: Fri, 29 May 2020 17:54:23 +0800 Subject: [PATCH 0/5] Enable I2C in SPL, support runtime detection of add-on board In-Reply-To: References: <1590170608-12229-1-git-send-email-sunil@amarulasolutions.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Suniel, ??? Any idea bout ChenYu's comment? Thanks, - Kever On 2020/5/23 ??10:07, Chen-Yu Tsai wrote: > Hi, > > On Sat, May 23, 2020 at 2:04 AM wrote: >> From: Suniel Mahesh >> >> This patch series adds runtime detection of add-on board(ROC-RK3399-PC Mezzanine) by >> enabling I2C in SPL. >> This add on board hosts a CW2015 chip which is connected as slave to I2C2. In order >> to dynamically detect this add-on board at runtime, I2C2 is probed in SPL. If probe >> is successfull then a corresponding dtb is loaded, else regular dtb is loaded for >> the u-boot proper. >> >> Patch #1 moves board initialiation code after rk3399 init is done. Patch #2 enables >> I2C in SPL for any add-on board detection at run time. Patch #3 adds support for >> add-on board run-time detection. Patch #4 drops ROC-RK3399-PC Mezzanine board as this >> is an add-on board, it will be detected at runtime. Patch #5 enables PCIe/M.2 and NVMe, >> as this add-on board has a PCIe/M.2. >> >> Jagan Teki (1): >> rockchip: spl: Move board_early_init_f after cpu timer >> >> Suniel Mahesh (4): >> roc-pc-rk3399: Enable I2C in SPL for add-on board detection >> roc-pc-rk3399: Add support for add-on board run-time detection >> rk3399: drop ROC-RK3399-PC Mezzanine board >> roc-pc-rk3399: Enable PCIe/M.2, NVMe >> >> arch/arm/dts/rk3399-roc-pc-u-boot.dtsi | 13 +++++ >> arch/arm/mach-rockchip/spl.c | 5 +- >> board/firefly/roc-pc-rk3399/MAINTAINERS | 2 - >> board/firefly/roc-pc-rk3399/roc-pc-rk3399.c | 56 ++++++++++++++++++++++ >> configs/roc-pc-mezzanine-rk3399_defconfig | 74 ----------------------------- > > FYI this is going to be problematic for people that have the non-POE > version of the > mezzanine board and still want to access NVMe from U-boot. Maybe worth keeping a > target for these people to use. > > ChenYu > >> configs/roc-pc-rk3399_defconfig | 10 +++- >> 6 files changed, 81 insertions(+), 79 deletions(-) >> delete mode 100644 configs/roc-pc-mezzanine-rk3399_defconfig >> >> -- >> 2.7.4 >> >