From: Fabio Estevam festevam@denx.de
For changing the USB OTG node status from "okay" to "disabled" more space is needed, so call fdt_increase_size() to avoid the following error:
``` U-Boot 2023.07-rc5-0.0.0-devel+git.580eb31199be (Jun 27 2023 - 13:39:58 +0000) CPU: Freescale i.MX7S rev1.2 800 MHz (running at 792 MHz) CPU: Extended Commercial temperature grade (-20C to 105C) at 30C Reset cause: POR DRAM: initcall sequence 8786eafc failed at call 8781b351 (err=-3) ### ERROR ### Please RESET the board ### ```
Ideally, fdt_status_disabled() should call fdt_increase_size() internally, so that there would be no need for manually calling it in board code.
Do it manually for now to fix the regression.
Based on the code from board/CZ.NIC/turris_omnia/turris_omnia.c.
Reported-by: Francesco Dolcini francesco.dolcini@toradex.com Signed-off-by: Fabio Estevam festevam@denx.de --- board/toradex/colibri_imx7/colibri_imx7.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c index 3e79ab93a982..78be17c3b550 100644 --- a/board/toradex/colibri_imx7/colibri_imx7.c +++ b/board/toradex/colibri_imx7/colibri_imx7.c @@ -311,10 +311,22 @@ int ft_board_setup(void *blob, struct bd_info *bd) #ifdef CONFIG_USB_EHCI_MX7 int board_fix_fdt(void *rw_fdt_blob) { + int ret; + /* i.MX 7Solo has only one single USB OTG1 but no USB host port */ if (is_cpu_type(MXC_CPU_MX7S)) { int offset = fdt_path_offset(rw_fdt_blob, "/soc/bus@30800000/usb@30b20000");
+ /* + * We're changing from status = "okay" to status = "disabled". + * In this case we'll need more space, so increase the size + * a little bit. + */ + ret = fdt_increase_size(rw_fdt_blob, 32); + if (ret < 0) { + printf("Cannot increase FDT size: %d\n", ret); + return ret; + } return fdt_status_disabled(rw_fdt_blob, offset); }