[PATCH v2] colibri-imx7: Call fdt_increase_size()

[PATCH v2] colibri-imx7: Call fdt_increase_size()

[Fabio Estevam]

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>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com> # Toradex Colibri iMX7S
---
Changes since v1:
- Fix indentation. (Francesco)

 board/toradex/colibri_imx7/colibri_imx7.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c
index 3e79ab93a982..119e67b47f79 100644
--- a/board/toradex/colibri_imx7/colibri_imx7.c
+++ b/board/toradex/colibri_imx7/colibri_imx7.c
@@ -311,10 +311,23 @@ 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);
 	}
 
-- 
2.34.1

Re: [PATCH v2] colibri-imx7: Call fdt_increase_size()

[Tom Rini]

On Tue, 04 Jul 2023 14:09:45 -0300, Fabio Estevam wrote:

> 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 ###
> ```
> 
> [...]

Applied to u-boot/master, thanks!

-- 
Tom