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path: root/target/linux/layerscape/patches-5.4/701-net-0279-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch
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Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0279-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0279-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch58
1 files changed, 0 insertions, 58 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0279-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch b/target/linux/layerscape/patches-5.4/701-net-0279-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch
deleted file mode 100644
index 02ead2712f..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0279-enetc-Set-MDIO_CFG_HOLD-to-the-recommended-value-of-.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From 5961ca6738507031a64f8580ceb8ab0b630d47a5 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;