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From: "Ivan T. Ivanov" <iivanov@suse.de>
To: Stefan Wahren <wahrenst@gmx.net>
Cc: Jens Maus <mail@jens-maus.de>, u-boot@lists.denx.de
Subject: Re: Re: [PATCH v4 0/6] rpi5: initial support
Date: Mon, 22 Jan 2024 16:16:34 +0200	[thread overview]
Message-ID: <uwh4skanpw4c42t5iefqiawfns2wglxl4rizmaexeaetyvahf3@yibnd3owvcn2> (raw)
In-Reply-To: <223DA3F8-B17B-44CF-B247-12DEBD100A75@suse.de>

Hi,

On 01-22 13:57, Ivan T. Ivanov wrote:
> > Am 20.01.24 um 10:48 schrieb Jens Maus:
> >> Hi,
> >> 
> >>> Am 20.01.2024 um 10:22 schrieb Stefan Wahren <wahrenst@gmx.net>:
> >>> 
> >>> Am 19.01.24 um 22:26 schrieb Jens Maus:
> >>>> I actually do have some good and bad news:
> >>>> 
> >>>> 1. Good news: I got u-boot finally showing up with my RaspberryPi5 8GB both on the HDMI and on the serial debug UART like you reported.
> >>>> 
> >>>> 2. Bad news: I actually got it working by downgrading the rpi-eeprom to the same 2023/10/30 (VERSION:30de0ba5) version like you have.
> >>>> 
> > 
> > One idea would be to enable early debug in U-Boot (no idea how to
> > achieve this). I assume U-Boot crashes before it's able to print the
> > first line, but it's hard to believe it crashes at the very first
> > instruction of U-Boot. So with some luck we should be able to narrow
> > done the cause.
> 
> I was able to enable early debug UART in U-Boot and I will try to
> find what is happening, once I get some free cycles.

Ok, this was relatively easy to find :-)

New versions of EEPROM firmware change “kernel”/U-Boot load address 
from 0x80000 to 0x200000. And because on RPi’s CONFIG_TEXT_BASE is
hardcoded to 0x80000 code run through the fields. 

Hopefully simple patch like bellow make it work fine in older and
newer EEPROM firmware versions.

Regards,
Ivan  

diff --git a/configs/rpi_arm64_defconfig b/configs/rpi_arm64_defconfig
index 11ede9435d..ce64f9554f 100644
--- a/configs/rpi_arm64_defconfig
+++ b/configs/rpi_arm64_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_BCM283X=y
 CONFIG_TEXT_BASE=0x00080000
+CONFIG_POSITION_INDEPENDENT=y


  reply	other threads:[~2024-01-22 14:16 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-12 13:10 [PATCH v4 0/6] rpi5: initial support Jens Maus
2024-01-17 15:07 ` Ivan T. Ivanov
2024-01-17 15:13   ` Jens Maus
2024-01-17 15:23     ` Ivan T. Ivanov
2024-01-17 15:30       ` Jens Maus
2024-01-17 16:45         ` Ivan T. Ivanov
2024-01-17 23:06           ` Jens Maus
2024-01-18  8:33             ` Ivan T. Ivanov
2024-01-18 17:18               ` Jens Maus
2024-01-19  5:29                 ` Ivan T. Ivanov
2024-01-19  7:21                   ` Jens Maus
2024-01-19  9:20                     ` Stefan Wahren
2024-01-19 10:49                       ` Jens Maus
     [not found]                         ` <sjmi6dftbgx56isfyjtaryehzq2iollwxm2etlspiygehh3n6v@k4ws56nsbgfn>
     [not found]                           ` <6C9E5E0C-9C27-45A4-886F-8B8C641EF7A3@jens-maus.de>
2024-01-19 13:46                             ` Ivan T. Ivanov
2024-01-19 13:54                               ` Jens Maus
2024-01-19 14:06                                 ` Ivan T. Ivanov
2024-01-19 14:08                                   ` Jens Maus
2024-01-19 14:24                                     ` Ivan T. Ivanov
2024-01-19 16:12                                       ` Jens Maus
2024-01-19 16:29                                         ` Ivan T. Ivanov
2024-01-19 16:53                                           ` Jens Maus
2024-01-19 21:26                                             ` Jens Maus
2024-01-20  9:22                                               ` Stefan Wahren
2024-01-20  9:48                                                 ` Jens Maus
2024-01-20 10:50                                                   ` Stefan Wahren
2024-01-22 11:57                                                     ` Ivan T. Ivanov
2024-01-22 14:16                                                       ` Ivan T. Ivanov [this message]
2024-01-22 14:30                                                         ` Mark Kettenis
2024-01-22 18:01                                                           ` Tom Rini
2024-01-23 11:11                                                         ` Jens Maus
2024-01-23 12:09                                                           ` Stefan Wahren

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