From: Ramon Fried <rfried.dev@gmail.com>
To: Daniil Stas <daniil.stas@posteo.net>
Cc: U-Boot Mailing List <u-boot@lists.denx.de>, Ye Li <ye.li@nxp.com>,
Fugang Duan <fugang.duan@nxp.com>, Peng Fan <peng.fan@nxp.com>,
Joe Hershberger <joe.hershberger@ni.com>,
Patrice Chotard <patrice.chotard@foss.st.com>,
Patrick Delaunay <patrick.delaunay@foss.st.com>
Subject: Re: [PATCH] net: dwc_eth_qos: Revert some changes of commit 3a97da12ee7b
Date: Sat, 12 Jun 2021 21:34:19 +0300 [thread overview]
Message-ID: <CAGi-RUL1zprv55odO592o0EeccorjJXoY608N8-=XWBEtX3V9Q@mail.gmail.com> (raw)
In-Reply-To: <20210530133409.1669336-1-daniil.stas@posteo.net>
On Sun, May 30, 2021 at 4:28 PM Daniil Stas <daniil.stas@posteo.net> wrote:
>
> Revert some changes of commit 3a97da12ee7b ("net: dwc_eth_qos: add dwc
> eqos for imx support") that were probably added by mistake.
>
> One of these changes can lead to received data corruption (enabling
> FUP and FEP bits). Another causes invalid register rxq_ctrl0 settings
> for some platforms. And another makes some writes at unknown memory
> location.
>
> Fixes: 3a97da12ee7b ("net: dwc_eth_qos: add dwc eqos for imx support")
> Signed-off-by: Daniil Stas <daniil.stas@posteo.net>
> Cc: Ye Li <ye.li@nxp.com>
> Cc: Fugang Duan <fugang.duan@nxp.com>
> Cc: Peng Fan <peng.fan@nxp.com>
> Cc: Ramon Fried <rfried.dev@gmail.com>
> Cc: Joe Hershberger <joe.hershberger@ni.com>
> Cc: Patrice Chotard <patrice.chotard@foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
> ---
> drivers/net/dwc_eth_qos.c | 13 +------------
> 1 file changed, 1 insertion(+), 12 deletions(-)
>
> diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c
> index 2f088c758f..b012bed517 100644
> --- a/drivers/net/dwc_eth_qos.c
> +++ b/drivers/net/dwc_eth_qos.c
> @@ -172,8 +172,6 @@ struct eqos_mtl_regs {
> #define EQOS_MTL_RXQ0_OPERATION_MODE_RFA_MASK 0x3f
> #define EQOS_MTL_RXQ0_OPERATION_MODE_EHFC BIT(7)
> #define EQOS_MTL_RXQ0_OPERATION_MODE_RSF BIT(5)
> -#define EQOS_MTL_RXQ0_OPERATION_MODE_FEP BIT(4)
> -#define EQOS_MTL_RXQ0_OPERATION_MODE_FUP BIT(3)
>
> #define EQOS_MTL_RXQ0_DEBUG_PRXQ_SHIFT 16
> #define EQOS_MTL_RXQ0_DEBUG_PRXQ_MASK 0x7fff
> @@ -1222,7 +1220,6 @@ static int eqos_start(struct udevice *dev)
> }
>
> /* Configure MTL */
> - writel(0x60, &eqos->mtl_regs->txq0_quantum_weight - 0x100);
>
> /* Enable Store and Forward mode for TX */
> /* Program Tx operating mode */
> @@ -1236,9 +1233,7 @@ static int eqos_start(struct udevice *dev)
>
> /* Enable Store and Forward mode for RX, since no jumbo frame */
> setbits_le32(&eqos->mtl_regs->rxq0_operation_mode,
> - EQOS_MTL_RXQ0_OPERATION_MODE_RSF |
> - EQOS_MTL_RXQ0_OPERATION_MODE_FEP |
> - EQOS_MTL_RXQ0_OPERATION_MODE_FUP);
> + EQOS_MTL_RXQ0_OPERATION_MODE_RSF);
>
> /* Transmit/Receive queue fifo size; use all RAM for 1 queue */
> val = readl(&eqos->mac_regs->hw_feature1);
> @@ -1314,12 +1309,6 @@ static int eqos_start(struct udevice *dev)
> eqos->config->config_mac <<
> EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
>
> - clrsetbits_le32(&eqos->mac_regs->rxq_ctrl0,
> - EQOS_MAC_RXQ_CTRL0_RXQ0EN_MASK <<
> - EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT,
> - 0x2 <<
> - EQOS_MAC_RXQ_CTRL0_RXQ0EN_SHIFT);
> -
> /* Multicast and Broadcast Queue Enable */
> setbits_le32(&eqos->mac_regs->unused_0a4,
> 0x00100000);
> --
> 2.31.1
>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
next prev parent reply other threads:[~2021-06-12 18:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-30 13:34 [PATCH] net: dwc_eth_qos: Revert some changes of commit 3a97da12ee7b Daniil Stas
2021-06-12 18:34 ` Ramon Fried [this message]
2021-06-12 18:37 ` Ramon Fried
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