From: Raymond Mao <[email protected]> Initialize clock and serial devices in SPL. Otherwise, the device driver won't be loaded in SPL.
Signed-off-by: Raymond Mao <[email protected]> --- board/spacemit/k1/spl.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/board/spacemit/k1/spl.c b/board/spacemit/k1/spl.c index 11a097389f1..1c299810d39 100644 --- a/board/spacemit/k1/spl.c +++ b/board/spacemit/k1/spl.c @@ -3,8 +3,44 @@ * Copyright (c) 2025-2026, RISCStar Ltd. */ +#include <dm/device.h> +#include <dm/uclass.h> #include <spl.h> +static void clk_early_init(void) +{ + struct udevice *dev; + int ret; + + ret = uclass_get_device_by_name(UCLASS_CLK, "clock-controller@d4090000", &dev); + if (ret) + panic("Fail to detect clock-controller@d4090000\n"); + ret = uclass_get_device_by_name(UCLASS_CLK, "system-controller@d4050000", &dev); + if (ret) + panic("Fail to detect system-controller@d4050000\n"); + ret = uclass_get_device_by_name(UCLASS_CLK, "system-controller@d4282800", &dev); + if (ret) + panic("Fail to detect system-controller@d4282800\n"); + ret = uclass_get_device_by_name(UCLASS_CLK, "system-controller@d4015000", &dev); + if (ret) + panic("Fail to detect system-controller@d4015000\n"); + + if (device_active(dev)) + debug("clk: device is active\n"); + else + debug("clk: device not active, probing...\n"); +} + +void serial_early_init(void) +{ + struct udevice *dev; + int ret; + + ret = uclass_get_device(UCLASS_SERIAL, 0, &dev); + if (ret) + panic("Serial uclass init failed: %d\n", ret); +} + void board_init_f(ulong dummy) { int ret; @@ -15,6 +51,8 @@ void board_init_f(ulong dummy) riscv_cpu_setup(); + clk_early_init(); + serial_early_init(); preloader_console_init(); } -- 2.25.1
