diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/852-v5.10-0001-net-sfp-VSOL-V2801F-CarlitoxxPro-CPGOS03-0490-v2.0-w.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/852-v5.10-0001-net-sfp-VSOL-V2801F-CarlitoxxPro-CPGOS03-0490-v2.0-w.patch | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/target/linux/generic/backport-5.4/852-v5.10-0001-net-sfp-VSOL-V2801F-CarlitoxxPro-CPGOS03-0490-v2.0-w.patch b/target/linux/generic/backport-5.4/852-v5.10-0001-net-sfp-VSOL-V2801F-CarlitoxxPro-CPGOS03-0490-v2.0-w.patch deleted file mode 100644 index 1901054a10..0000000000 --- a/target/linux/generic/backport-5.4/852-v5.10-0001-net-sfp-VSOL-V2801F-CarlitoxxPro-CPGOS03-0490-v2.0-w.patch +++ /dev/null @@ -1,144 +0,0 @@ -From 0d035bed2a4a6c4878518749348be61bf082d12a Mon Sep 17 00:00:00 2001 -From: Russell King <rmk+kernel@armlinux.org.uk> -Date: Wed, 9 Dec 2020 11:22:49 +0000 -Subject: [PATCH] net: sfp: VSOL V2801F / CarlitoxxPro CPGOS03-0490 v2.0 - workaround -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Add a workaround for the detection of VSOL V2801F / CarlitoxxPro -CPGOS03-0490 v2.0 GPON module which CarlitoxxPro states needs single -byte I2C reads to the EEPROM. - -Pali Rohár reports that he also has a CarlitoxxPro-based V2801F module, -which reports a manufacturer of "OEM". This manufacturer can't be -matched as it appears in many different modules, so also match the part -number too. - -Reported-by: Thomas Schreiber <tschreibe@gmail.com> -Reported-by: Pali Rohár <pali@kernel.org> -Tested-by: Pali Rohár <pali@kernel.org> -Reviewed-by: Andrew Lunn <andrew@lunn.ch> -Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/phy/sfp.c | 63 +++++++++++++++++++++++++++++++++++++++---- - 1 file changed, 58 insertions(+), 5 deletions(-) - ---- a/drivers/net/phy/sfp.c -+++ b/drivers/net/phy/sfp.c -@@ -191,6 +191,7 @@ struct sfp { - struct sfp_bus *sfp_bus; - struct phy_device *mod_phy; - const struct sff_data *type; -+ size_t i2c_block_size; - u32 max_power_mW; - - unsigned int (*get_state)(struct sfp *); -@@ -305,10 +306,19 @@ static int sfp_i2c_read(struct sfp *sfp, - size_t len) - { - struct i2c_msg msgs[2]; -- u8 bus_addr = a2 ? 0x51 : 0x50; -+ size_t block_size; - size_t this_len; -+ u8 bus_addr; - int ret; - -+ if (a2) { -+ block_size = 16; -+ bus_addr = 0x51; -+ } else { -+ block_size = sfp->i2c_block_size; -+ bus_addr = 0x50; -+ } -+ - msgs[0].addr = bus_addr; - msgs[0].flags = 0; - msgs[0].len = 1; -@@ -320,8 +330,8 @@ static int sfp_i2c_read(struct sfp *sfp, - - while (len) { - this_len = len; -- if (this_len > 16) -- this_len = 16; -+ if (this_len > block_size) -+ this_len = block_size; - - msgs[1].len = this_len; - -@@ -1569,6 +1579,28 @@ static int sfp_sm_mod_hpower(struct sfp - return 0; - } - -+/* Some modules (Nokia 3FE46541AA) lock up if byte 0x51 is read as a -+ * single read. Switch back to reading 16 byte blocks unless we have -+ * a CarlitoxxPro module (rebranded VSOL V2801F). Even more annoyingly, -+ * some VSOL V2801F have the vendor name changed to OEM. -+ */ -+static int sfp_quirk_i2c_block_size(const struct sfp_eeprom_base *base) -+{ -+ if (!memcmp(base->vendor_name, "VSOL ", 16)) -+ return 1; -+ if (!memcmp(base->vendor_name, "OEM ", 16) && -+ !memcmp(base->vendor_pn, "V2801F ", 16)) -+ return 1; -+ -+ /* Some modules can't cope with long reads */ -+ return 16; -+} -+ -+static void sfp_quirks_base(struct sfp *sfp, const struct sfp_eeprom_base *base) -+{ -+ sfp->i2c_block_size = sfp_quirk_i2c_block_size(base); -+} -+ - static int sfp_sm_mod_probe(struct sfp *sfp, bool report) - { - /* SFP module inserted - read I2C data */ -@@ -1577,14 +1609,20 @@ static int sfp_sm_mod_probe(struct sfp * - u8 check; - int ret; - -- ret = sfp_read(sfp, false, 0, &id, sizeof(id)); -+ /* Some modules (CarlitoxxPro CPGOS03-0490) do not support multibyte -+ * reads from the EEPROM, so start by reading the base identifying -+ * information one byte at a time. -+ */ -+ sfp->i2c_block_size = 1; -+ -+ ret = sfp_read(sfp, false, 0, &id.base, sizeof(id.base)); - if (ret < 0) { - if (report) - dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); - return -EAGAIN; - } - -- if (ret != sizeof(id)) { -+ if (ret != sizeof(id.base)) { - dev_err(sfp->dev, "EEPROM short read: %d\n", ret); - return -EAGAIN; - } -@@ -1612,6 +1650,21 @@ static int sfp_sm_mod_probe(struct sfp * - } - } - -+ /* Apply any early module-specific quirks */ -+ sfp_quirks_base(sfp, &id.base); -+ -+ ret = sfp_read(sfp, false, SFP_CC_BASE + 1, &id.ext, sizeof(id.ext)); -+ if (ret < 0) { -+ if (report) -+ dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret); -+ return -EAGAIN; -+ } -+ -+ if (ret != sizeof(id.ext)) { -+ dev_err(sfp->dev, "EEPROM short read: %d\n", ret); -+ return -EAGAIN; -+ } -+ - check = sfp_check(&id.ext, sizeof(id.ext) - 1); - if (check != id.ext.cc_ext) { - if (cotsworks) { |