Hi Simon,
-----Original Message----- From: Simon Glass sjg@chromium.org Sent: Wednesday, August 9, 2023 2:54 AM To: Chanho Park chanho61.park@samsung.com Cc: u-boot@lists.denx.de; Bin Meng bmeng.cn@gmail.com Subject: Re: [PATCH] dm: core: allow DM_POST_INIT_F notification for TIMER_EARLY
Hi Chanho,
On Tue, 8 Aug 2023 at 01:35, Chanho Park chanho61.park@samsung.com wrote:
Since the Patch 55171aedda88, VisionFive2 booting has been broken [1]. VisionFive2 board requires to enable CONFIG_TIMER_EARLY but booting went to panic from initr_dm_devices due to lack of a timer device.
- Error logs
initcall sequence 00000000fffd8d38 failed at call 00000000402185e4 (err=-19)
We can reproduce it on Qemu Sifive HiFive Unleashed emulation[2] after enabling CONFIG_TIMER_EARLY manually.
85cbfec-8b0f4f7ae7f889ef&q=1&e=3bf1c52b-7aa0-464a-86d3-ecec3db1395d&u= https%3A%2F%2Flists.denx.de%2Fpipermail%2Fu-boot%2F2023-June%2F521220. html [2]: https://www.qemu.org/docs/master/system/riscv/sifive_u.html#running-u- boot Fixes: 55171aedda88 ("dm: Emit the arch_cpu_init_dm() even only before relocation") Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Signed-off-by: Chanho Park chanho61.park@samsung.com
drivers/core/root.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/core/root.c b/drivers/core/root.c index 6775fb0b6575..e939da484b2a 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -436,7 +436,8 @@ int dm_init_and_scan(bool pre_reloc_only) return ret; } }
if (CONFIG_IS_ENABLED(DM_EVENT) && !(gd->flags & GD_FLG_RELOC)) {
if (CONFIG_IS_ENABLED(DM_EVENT) &&(!(gd->flags & GD_FLG_RELOC) ||- CONFIG_IS_ENABLED(TIMER_EARLY))) { ret = event_notify_null(EVT_DM_POST_INIT_F); if (ret) return log_msg_ret("ev", ret);
-- 2.39.2
It looks like you need a new notification. The correct fix would be to add a new EVT_DM_POST_INIT_R event and emit that after relocation, e.g.
if (CONFIG_IS_ENABLED(DM_EVENT) { ret = event_notify_null(gd->flags & GD_FLG_RELOC ? EVT_DM_POST_INIT_R : EVT_DM_POST_INIT_F); if (ret) return log_msg_ret("ev", ret); }
Sorry for this late reply. I feel like I need to move riscv_cpu_probe call from arch_early_init_r and make it as the callback of the new event. I'll send v2 with the changes.
Best Regards, Chanho Park