| Message ID | 1625706501-964-1-git-send-email-vincent.chen@sifive.com |
|---|---|
| Headers | show |
| Series | board: sifive: unmatched: reset multiple devices in SPL | expand |
Just a gentle ping. If this patchset has any problems, please let me know. I am willing to modify it. Thank you. On Thu, Jul 8, 2021 at 9:08 AM Vincent Chen <vincent.chen@sifive.com> wrote: > > In SiFive unmatched board, the reset of the USB hub, PCIe-USB bridge, and > ULPI rely on the power-cycling. However, sometimes the rebooting is without > power-cycling. To ensure these devices will be reset in each rebooting, > here always reset these devices in the spl_board_init_f(). > > In addition, because the reset pint of these four devices incluing GEMGXL > connects to the GPIO, the 1st patch creates a new wrapper, > spl_reset_device_by_gpio(), to address the GPIO operation during the reset. > > Vincent Chen (2): > board: sifive: unmatched: refine GEMGXL initialized function in SPL > board: sifive: unmatched: reset USB hub, PCIe-USB bridge, and ULPI > device in SPL > > board/sifive/unmatched/spl.c | 90 +++++++++++++++++++++++++++++++++++--------- > 1 file changed, 73 insertions(+), 17 deletions(-) > > -- > 2.7.4 >
In SiFive unmatched board, the reset of the USB hub, PCIe-USB bridge, and ULPI rely on the power-cycling. However, sometimes the rebooting is without power-cycling. To ensure these devices will be reset in each rebooting, here always reset these devices in the spl_board_init_f(). In addition, because the reset pint of these four devices incluing GEMGXL connects to the GPIO, the 1st patch creates a new wrapper, spl_reset_device_by_gpio(), to address the GPIO operation during the reset. Vincent Chen (2): board: sifive: unmatched: refine GEMGXL initialized function in SPL board: sifive: unmatched: reset USB hub, PCIe-USB bridge, and ULPI device in SPL board/sifive/unmatched/spl.c | 90 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 73 insertions(+), 17 deletions(-)