diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0302-staging-fsl_ppfe-eth-remove-jumbo-frame-enable-from-.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0302-staging-fsl_ppfe-eth-remove-jumbo-frame-enable-from-.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0302-staging-fsl_ppfe-eth-remove-jumbo-frame-enable-from-.patch b/target/linux/layerscape/patches-5.4/701-net-0302-staging-fsl_ppfe-eth-remove-jumbo-frame-enable-from-.patch new file mode 100644 index 0000000000..a98c55120c --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0302-staging-fsl_ppfe-eth-remove-jumbo-frame-enable-from-.patch @@ -0,0 +1,46 @@ +From 162c09cee1b5b00e09fd99273fd2f8c460c0d989 Mon Sep 17 00:00:00 2001 +From: Calvin Johnson <calvin.johnson@nxp.com> +Date: Wed, 20 Jun 2018 10:23:16 +0530 +Subject: [PATCH] staging: fsl_ppfe/eth: remove jumbo frame enable from gemac + init + +MAC Receive Control Register was configured to allow jumbo frames. +This is removed as jumbo frames can be supported anytime by changing +mtu which will in turn modify MAX_FL field of MAC RCR. +Jumbo frames caused pfe to hang on LS1012A rev 1.0 Silicon due to +erratum A-010897. + +Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com> +--- + drivers/staging/fsl_ppfe/pfe_eth.c | 1 - + drivers/staging/fsl_ppfe/pfe_hal.c | 9 --------- + 2 files changed, 10 deletions(-) + +--- a/drivers/staging/fsl_ppfe/pfe_eth.c ++++ b/drivers/staging/fsl_ppfe/pfe_eth.c +@@ -1272,7 +1272,6 @@ static int pfe_gemac_init(struct pfe_eth + gemac_set_config(priv->EMAC_baseaddr, &cfg); + gemac_allow_broadcast(priv->EMAC_baseaddr); + gemac_enable_1536_rx(priv->EMAC_baseaddr); +- gemac_enable_rx_jmb(priv->EMAC_baseaddr); + gemac_enable_stacked_vlan(priv->EMAC_baseaddr); + gemac_enable_pause_rx(priv->EMAC_baseaddr); + gemac_set_bus_width(priv->EMAC_baseaddr, 64); +--- a/drivers/staging/fsl_ppfe/pfe_hal.c ++++ b/drivers/staging/fsl_ppfe/pfe_hal.c +@@ -1028,15 +1028,6 @@ void gemac_set_rx_max_fl(void *base, int + | (mtu << 16), base + EMAC_RCNTRL_REG); + } + +-/* GEMAC enable jumbo function. +- * @param[in] base GEMAC base address +- */ +-void gemac_enable_rx_jmb(void *base) +-{ +- writel((readl(base + EMAC_RCNTRL_REG) & PFE_RCR_MAX_FL_MASK) +- | (JUMBO_FRAME_SIZE << 16), base + EMAC_RCNTRL_REG); +-} +- + /* GEMAC enable stacked vlan function. + * @param[in] base GEMAC base address + */ |