diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0383-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0383-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0383-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch b/target/linux/layerscape/patches-5.4/701-net-0383-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch deleted file mode 100644 index 50b34520e3..0000000000 --- a/target/linux/layerscape/patches-5.4/701-net-0383-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch +++ /dev/null @@ -1,58 +0,0 @@ -From c0308743202449028d2b839d9b01d3d5ed2b210a Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Wed, 27 Nov 2019 19:21:13 +0200 -Subject: [PATCH] enetc: Set MDIO_CFG_HOLD to the recommended value of 2 - -This increases the MDIO hold time to 5 enet_clk cycles from the previous -value of 0. This is actually the out-of-reset value, that the driver was -previously overwriting with 0. Zero worked for the external MDIO, but -breaks communication with the internal MDIO buses on which the PCS of -ENETC SI's and Felix switch are found. - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> ---- - drivers/net/ethernet/freescale/enetc/enetc_mdio.c | 12 ++++++++---- - 1 file changed, 8 insertions(+), 4 deletions(-) - ---- a/drivers/net/ethernet/freescale/enetc/enetc_mdio.c -+++ b/drivers/net/ethernet/freescale/enetc/enetc_mdio.c -@@ -31,15 +31,19 @@ static inline void _enetc_mdio_wr(struct - _enetc_mdio_wr(mdio_priv, ENETC_##off, val) - #define enetc_mdio_rd_reg(off) enetc_mdio_rd(mdio_priv, off) - --#define ENETC_MDC_DIV 258 -- - #define MDIO_CFG_CLKDIV(x) ((((x) >> 1) & 0xff) << 8) - #define MDIO_CFG_BSY BIT(0) - #define MDIO_CFG_RD_ER BIT(1) -+#define MDIO_CFG_HOLD(x) (((x) << 2) & GENMASK(4, 2)) - #define MDIO_CFG_ENC45 BIT(6) - /* external MDIO only - driven on neg MDC edge */ - #define MDIO_CFG_NEG BIT(23) - -+#define ENETC_EMDIO_CFG \ -+ (MDIO_CFG_HOLD(2) | \ -+ MDIO_CFG_CLKDIV(258) | \ -+ MDIO_CFG_NEG) -+ - #define MDIO_CTL_DEV_ADDR(x) ((x) & 0x1f) - #define MDIO_CTL_PORT_ADDR(x) (((x) & 0x1f) << 5) - #define MDIO_CTL_READ BIT(15) -@@ -61,7 +65,7 @@ int enetc_mdio_write(struct mii_bus *bus - u16 dev_addr; - int ret; - -- mdio_cfg = MDIO_CFG_CLKDIV(ENETC_MDC_DIV) | MDIO_CFG_NEG; -+ mdio_cfg = ENETC_EMDIO_CFG; - if (regnum & MII_ADDR_C45) { - dev_addr = (regnum >> 16) & 0x1f; - mdio_cfg |= MDIO_CFG_ENC45; -@@ -108,7 +112,7 @@ int enetc_mdio_read(struct mii_bus *bus, - u16 dev_addr, value; - int ret; - -- mdio_cfg = MDIO_CFG_CLKDIV(ENETC_MDC_DIV) | MDIO_CFG_NEG; -+ mdio_cfg = ENETC_EMDIO_CFG; - if (regnum & MII_ADDR_C45) { - dev_addr = (regnum >> 16) & 0x1f; - mdio_cfg |= MDIO_CFG_ENC45; |