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net/phy/cortina: Add No firmware upload option
Current Cortina phy driver assumes that firmware upload is required during initialization and is dependent on presence of corresponding macros like CONFIG_CORTINA_FW_ADDR for compilation. But Cortina phy has provision to store phy firmware in attached dedicated EEPROM. And boards designed with such EEPROM does not require firmware upload. Add CORTINA_NO_FW_UPLOAD option in cortina.c to support such boards. Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
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1 changed files with 13 additions and 0 deletions
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@ -4,6 +4,7 @@
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* SPDX-License-Identifier: GPL-2.0+
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*
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* Copyright 2014 Freescale Semiconductor, Inc.
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* Copyright 2018 NXP
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*
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*/
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@ -27,6 +28,7 @@
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#error The Cortina PHY needs 10G support
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#endif
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#ifndef CORTINA_NO_FW_UPLOAD
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struct cortina_reg_config cortina_reg_cfg[] = {
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/* CS4315_enable_sr_mode */
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{VILLA_GLOBAL_MSEQCLKCTRL, 0x8004},
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@ -215,12 +217,22 @@ void cs4340_upload_firmware(struct phy_device *phydev)
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phy_write(phydev, 0x00, fw_temp.reg_addr, fw_temp.reg_value);
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}
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}
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#endif
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int cs4340_phy_init(struct phy_device *phydev)
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{
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#ifndef CORTINA_NO_FW_UPLOAD
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int timeout = 100; /* 100ms */
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#endif
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int reg_value;
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/*
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* Cortina phy has provision to store
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* phy firmware in attached dedicated EEPROM.
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* Boards designed with EEPROM attached to Cortina
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* does not require FW upload.
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*/
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#ifndef CORTINA_NO_FW_UPLOAD
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/* step1: BIST test */
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phy_write(phydev, 0x00, VILLA_GLOBAL_MSEQCLKCTRL, 0x0004);
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phy_write(phydev, 0x00, VILLA_GLOBAL_LINE_SOFT_RESET, 0x0000);
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@ -241,6 +253,7 @@ int cs4340_phy_init(struct phy_device *phydev)
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/* setp2: upload ucode */
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cs4340_upload_firmware(phydev);
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#endif
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reg_value = phy_read(phydev, 0x00, VILLA_GLOBAL_DWNLD_CHECKSUM_STATUS);
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if (reg_value) {
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debug("%s checksum status failed.\n", __func__);
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