From: Leo Liang <ycliang@andestech.com>
To: Yuri Zaporozhets <yuriz@vodafonemail.de>
Cc: <u-boot@lists.denx.de>
Subject: Re: [PATCH] configs: enable CONFIG_PCI_REGION_MULTI_ENTRY=y in sifive_unmatched_defconfig
Date: Wed, 27 Nov 2024 19:56:43 +0800 [thread overview]
Message-ID: <Z0cI-9BJFj_y0ykI@swlinux02> (raw)
In-Reply-To: <20241119205959.13579-1-yuriz@vodafonemail.de>
On Tue, Nov 19, 2024 at 09:59:59PM +0100, Yuri Zaporozhets wrote:
> Currently, the PCI subsystem selects the small "region 2" (which starts at 0x7000000)
> as bus_addr/phys_addr. As a consequence, the BAR0 on PCIe video card cannot be initialized,
> because it simply doesn't fit into 0x1000000 bytes size of "region 2".
>
> U-Boot should use "region 1" instead (the one which starts at 0x60090000), because
> it has much bigger size (0xFF70000), and easily accomodates BAR0 of the video card.
> Linux kernel also uses 0x60090000 as bus_start/phys_start.
>
> Signed-off-by: Yuri Zaporozhets <yuriz@vodafonemail.de>
> ---
> configs/sifive_unmatched_defconfig | 1 +
> 1 file changed, 1 insertion(+)
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
next prev parent reply other threads:[~2024-11-27 11:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-19 20:59 [PATCH] configs: enable CONFIG_PCI_REGION_MULTI_ENTRY=y in sifive_unmatched_defconfig Yuri Zaporozhets
2024-11-27 11:56 ` Leo Liang [this message]
2025-02-21 20:55 ` Yuri Zaporozhets
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