GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)
This commit is contained in:
@@ -0,0 +1,45 @@
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config TI_I2C_BOARD_DETECT
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bool "Support for Board detection for TI platforms"
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help
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Support for detection board information on Texas Instrument's
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Evaluation Boards which have I2C based EEPROM detection
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config EEPROM_BUS_ADDRESS
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int "Board EEPROM's I2C bus address"
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range 0 8
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default 0
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depends on TI_I2C_BOARD_DETECT
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config EEPROM_CHIP_ADDRESS
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hex "Board EEPROM's I2C chip address"
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range 0 0xff
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default 0x50
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depends on TI_I2C_BOARD_DETECT
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config TI_COMMON_CMD_OPTIONS
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bool "Enable cmd options on TI platforms"
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imply CMD_ASKENV
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imply CMD_BOOTZ
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imply CRC32_VERIFY if ARCH_KEYSTONE
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imply CMD_DFU if USB_GADGET_DOWNLOAD
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imply CMD_DHCP
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imply CMD_EEPROM
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imply CMD_EXT2
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imply CMD_EXT4
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imply CMD_EXT4_WRITE
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imply CMD_FAT
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imply FAT_WRITE if CMD_FAT
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imply CMD_FS_GENERIC
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imply CMD_GPIO
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imply CMD_GPT
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imply CMD_I2C
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imply CMD_MII
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imply CMD_MMC
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imply CMD_PART
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imply CMD_PING
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imply CMD_PMIC if DM_PMIC
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imply CMD_REGULATOR if DM_REGULATOR
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imply CMD_SF if SPI_FLASH
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imply CMD_SPI
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imply CMD_TIME
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imply CMD_USB if USB
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@@ -0,0 +1,4 @@
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# SPDX-License-Identifier: GPL-2.0+
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# Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
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obj-${CONFIG_TI_I2C_BOARD_DETECT} += board_detect.o
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@@ -0,0 +1,712 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Library to support early TI EVM EEPROM handling
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*
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* Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
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* Lokesh Vutla
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* Steve Kipisz
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*/
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#include <common.h>
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#include <eeprom.h>
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#include <asm/arch/hardware.h>
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#include <asm/omap_common.h>
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#include <dm/uclass.h>
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#include <env.h>
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#include <i2c.h>
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#include "board_detect.h"
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#if !defined(CONFIG_DM_I2C)
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/**
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* ti_i2c_eeprom_init - Initialize an i2c bus and probe for a device
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* @i2c_bus: i2c bus number to initialize
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* @dev_addr: Device address to probe for
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*
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* Return: 0 on success or corresponding error on failure.
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*/
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static int __maybe_unused ti_i2c_eeprom_init(int i2c_bus, int dev_addr)
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{
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int rc;
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if (i2c_bus >= 0) {
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rc = i2c_set_bus_num(i2c_bus);
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if (rc)
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return rc;
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}
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return i2c_probe(dev_addr);
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}
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/**
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* ti_i2c_eeprom_read - Read data from an EEPROM
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* @dev_addr: The device address of the EEPROM
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* @offset: Offset to start reading in the EEPROM
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* @ep: Pointer to a buffer to read into
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* @epsize: Size of buffer
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*
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* Return: 0 on success or corresponding result of i2c_read
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*/
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static int __maybe_unused ti_i2c_eeprom_read(int dev_addr, int offset,
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uchar *ep, int epsize)
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{
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return i2c_read(dev_addr, offset, 2, ep, epsize);
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}
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#endif
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/**
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* ti_eeprom_string_cleanup() - Handle eeprom programming errors
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* @s: eeprom string (should be NULL terminated)
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*
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* Some Board manufacturers do not add a NULL termination at the
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* end of string, instead some binary information is kludged in, hence
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* convert the string to just printable characters of ASCII chart.
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*/
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static void __maybe_unused ti_eeprom_string_cleanup(char *s)
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{
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int i, l;
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l = strlen(s);
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for (i = 0; i < l; i++, s++)
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if (*s < ' ' || *s > '~') {
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*s = 0;
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break;
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}
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}
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__weak void gpi2c_init(void)
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{
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}
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static int __maybe_unused ti_i2c_eeprom_get(int bus_addr, int dev_addr,
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u32 header, u32 size, uint8_t *ep)
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{
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u32 hdr_read;
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int rc;
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#if defined(CONFIG_DM_I2C)
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struct udevice *dev;
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struct udevice *bus;
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rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
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if (rc)
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return rc;
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rc = i2c_get_chip(bus, dev_addr, 1, &dev);
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if (rc)
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return rc;
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/*
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* Read the header first then only read the other contents.
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*/
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rc = i2c_set_chip_offset_len(dev, 2);
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if (rc)
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return rc;
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rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
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if (rc)
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return rc;
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/* Corrupted data??? */
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if (hdr_read != header) {
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rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
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/*
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* read the eeprom header using i2c again, but use only a
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* 1 byte address (some legacy boards need this..)
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*/
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if (rc) {
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rc = i2c_set_chip_offset_len(dev, 1);
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if (rc)
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return rc;
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rc = dm_i2c_read(dev, 0, (uint8_t *)&hdr_read, 4);
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}
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if (rc)
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return rc;
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}
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if (hdr_read != header)
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return -1;
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rc = dm_i2c_read(dev, 0, ep, size);
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if (rc)
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return rc;
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#else
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u32 byte;
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gpi2c_init();
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rc = ti_i2c_eeprom_init(bus_addr, dev_addr);
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if (rc)
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return rc;
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/*
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* Read the header first then only read the other contents.
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*/
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byte = 2;
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rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
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if (rc)
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return rc;
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/* Corrupted data??? */
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if (hdr_read != header) {
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rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read, 4);
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/*
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* read the eeprom header using i2c again, but use only a
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* 1 byte address (some legacy boards need this..)
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*/
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byte = 1;
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if (rc) {
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rc = i2c_read(dev_addr, 0x0, byte, (uint8_t *)&hdr_read,
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4);
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}
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if (rc)
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return rc;
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}
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if (hdr_read != header)
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return -1;
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rc = i2c_read(dev_addr, 0x0, byte, ep, size);
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if (rc)
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return rc;
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#endif
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return 0;
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}
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int __maybe_unused ti_i2c_eeprom_am_set(const char *name, const char *rev)
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{
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struct ti_common_eeprom *ep;
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if (!name || !rev)
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return -1;
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ep = TI_EEPROM_DATA;
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if (ep->header == TI_EEPROM_HEADER_MAGIC)
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goto already_set;
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/* Set to 0 all fields */
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memset(ep, 0, sizeof(*ep));
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strncpy(ep->name, name, TI_EEPROM_HDR_NAME_LEN);
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strncpy(ep->version, rev, TI_EEPROM_HDR_REV_LEN);
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/* Some dummy serial number to identify the platform */
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strncpy(ep->serial, "0000", TI_EEPROM_HDR_SERIAL_LEN);
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/* Mark it with a valid header */
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ep->header = TI_EEPROM_HEADER_MAGIC;
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already_set:
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return 0;
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}
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int __maybe_unused ti_i2c_eeprom_am_get(int bus_addr, int dev_addr)
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{
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int rc;
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struct ti_am_eeprom am_ep;
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struct ti_common_eeprom *ep;
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ep = TI_EEPROM_DATA;
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#ifndef CONFIG_SPL_BUILD
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if (ep->header == TI_EEPROM_HEADER_MAGIC)
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return 0; /* EEPROM has already been read */
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#endif
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/* Initialize with a known bad marker for i2c fails.. */
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ep->header = TI_DEAD_EEPROM_MAGIC;
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ep->name[0] = 0x0;
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ep->version[0] = 0x0;
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ep->serial[0] = 0x0;
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ep->config[0] = 0x0;
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rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
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sizeof(am_ep), (uint8_t *)&am_ep);
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if (rc)
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return rc;
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ep->header = am_ep.header;
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strlcpy(ep->name, am_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
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ti_eeprom_string_cleanup(ep->name);
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/* BeagleBone Green '1' eeprom, board_rev: 0x1a 0x00 0x00 0x00 */
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if (am_ep.version[0] == 0x1a && am_ep.version[1] == 0x00 &&
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am_ep.version[2] == 0x00 && am_ep.version[3] == 0x00)
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strlcpy(ep->version, "BBG1", TI_EEPROM_HDR_REV_LEN + 1);
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else
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strlcpy(ep->version, am_ep.version, TI_EEPROM_HDR_REV_LEN + 1);
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ti_eeprom_string_cleanup(ep->version);
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strlcpy(ep->serial, am_ep.serial, TI_EEPROM_HDR_SERIAL_LEN + 1);
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ti_eeprom_string_cleanup(ep->serial);
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strlcpy(ep->config, am_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
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ti_eeprom_string_cleanup(ep->config);
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memcpy(ep->mac_addr, am_ep.mac_addr,
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TI_EEPROM_HDR_NO_OF_MAC_ADDR * TI_EEPROM_HDR_ETH_ALEN);
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return 0;
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}
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int __maybe_unused ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr)
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{
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int rc, offset = 0;
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struct dra7_eeprom dra7_ep;
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struct ti_common_eeprom *ep;
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ep = TI_EEPROM_DATA;
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#ifndef CONFIG_SPL_BUILD
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if (ep->header == DRA7_EEPROM_HEADER_MAGIC)
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return 0; /* EEPROM has already been read */
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#endif
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/* Initialize with a known bad marker for i2c fails.. */
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ep->header = TI_DEAD_EEPROM_MAGIC;
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ep->name[0] = 0x0;
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ep->version[0] = 0x0;
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ep->serial[0] = 0x0;
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ep->config[0] = 0x0;
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ep->emif1_size = 0;
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ep->emif2_size = 0;
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rc = ti_i2c_eeprom_get(bus_addr, dev_addr, DRA7_EEPROM_HEADER_MAGIC,
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sizeof(dra7_ep), (uint8_t *)&dra7_ep);
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if (rc)
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return rc;
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ep->header = dra7_ep.header;
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strlcpy(ep->name, dra7_ep.name, TI_EEPROM_HDR_NAME_LEN + 1);
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ti_eeprom_string_cleanup(ep->name);
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offset = dra7_ep.version_major - 1;
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/* Rev F is skipped */
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if (offset >= 5)
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offset = offset + 1;
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snprintf(ep->version, TI_EEPROM_HDR_REV_LEN + 1, "%c.%d",
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'A' + offset, dra7_ep.version_minor);
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ti_eeprom_string_cleanup(ep->version);
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ep->emif1_size = (u64)dra7_ep.emif1_size;
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ep->emif2_size = (u64)dra7_ep.emif2_size;
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strlcpy(ep->config, dra7_ep.config, TI_EEPROM_HDR_CONFIG_LEN + 1);
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ti_eeprom_string_cleanup(ep->config);
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return 0;
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}
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static int ti_i2c_eeprom_am6_parse_record(struct ti_am6_eeprom_record *record,
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struct ti_am6_eeprom *ep,
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char **mac_addr,
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u8 mac_addr_max_cnt,
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u8 *mac_addr_cnt)
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{
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switch (record->header.id) {
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case TI_AM6_EEPROM_RECORD_BOARD_INFO:
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if (record->header.len != sizeof(record->data.board_info))
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return -EINVAL;
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if (!ep)
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break;
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/* Populate (and clean, if needed) the board name */
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strlcpy(ep->name, record->data.board_info.name,
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sizeof(ep->name));
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ti_eeprom_string_cleanup(ep->name);
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/* Populate selected other fields from the board info record */
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strlcpy(ep->version, record->data.board_info.version,
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sizeof(ep->version));
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strlcpy(ep->software_revision,
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record->data.board_info.software_revision,
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sizeof(ep->software_revision));
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strlcpy(ep->serial, record->data.board_info.serial,
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sizeof(ep->serial));
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break;
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case TI_AM6_EEPROM_RECORD_MAC_INFO:
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if (record->header.len != sizeof(record->data.mac_info))
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return -EINVAL;
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if (!mac_addr || !mac_addr_max_cnt)
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break;
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*mac_addr_cnt = ((record->data.mac_info.mac_control &
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TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK) >>
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TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT) + 1;
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/*
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* The EEPROM can (but may not) hold a very large amount
|
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* of MAC addresses, by far exceeding what we want/can store
|
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* in the common memory array, so only grab what we can fit.
|
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* Note that a value of 0 means 1 MAC address, and so on.
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*/
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*mac_addr_cnt = min(*mac_addr_cnt, mac_addr_max_cnt);
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memcpy(mac_addr, record->data.mac_info.mac_addr,
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*mac_addr_cnt * TI_EEPROM_HDR_ETH_ALEN);
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break;
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case 0x00:
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/* Illegal value... Fall through... */
|
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case 0xFF:
|
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/* Illegal value... Something went horribly wrong... */
|
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return -EINVAL;
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default:
|
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pr_warn("%s: Ignoring record id %u\n", __func__,
|
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record->header.id);
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}
|
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|
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return 0;
|
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}
|
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|
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int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
|
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struct ti_am6_eeprom *ep,
|
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char **mac_addr,
|
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u8 mac_addr_max_cnt,
|
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u8 *mac_addr_cnt)
|
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{
|
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struct udevice *dev;
|
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struct udevice *bus;
|
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unsigned int eeprom_addr;
|
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struct ti_am6_eeprom_record_board_id board_id;
|
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struct ti_am6_eeprom_record record;
|
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int rc;
|
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|
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/* Initialize with a known bad marker for i2c fails.. */
|
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memset(ep, 0, sizeof(*ep));
|
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ep->header = TI_DEAD_EEPROM_MAGIC;
|
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|
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/* Read the board ID record which is always the first EEPROM record */
|
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rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
|
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sizeof(board_id), (uint8_t *)&board_id);
|
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if (rc)
|
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return rc;
|
||||
|
||||
if (board_id.header.id != TI_AM6_EEPROM_RECORD_BOARD_ID) {
|
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pr_err("%s: Invalid board ID record!\n", __func__);
|
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return -EINVAL;
|
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}
|
||||
|
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/* Establish DM handle to board config EEPROM */
|
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rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
|
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if (rc)
|
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return rc;
|
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rc = i2c_get_chip(bus, dev_addr, 1, &dev);
|
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if (rc)
|
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return rc;
|
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|
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ep->header = TI_EEPROM_HEADER_MAGIC;
|
||||
|
||||
/* Ready to parse TLV structure. Initialize variables... */
|
||||
*mac_addr_cnt = 0;
|
||||
|
||||
/*
|
||||
* After the all-encompassing board ID record all other records follow
|
||||
* a TLV-type scheme. Point to the first such record and then start
|
||||
* parsing those one by one.
|
||||
*/
|
||||
eeprom_addr = sizeof(board_id);
|
||||
|
||||
while (true) {
|
||||
rc = dm_i2c_read(dev, eeprom_addr, (uint8_t *)&record.header,
|
||||
sizeof(record.header));
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
/*
|
||||
* Check for end of list marker. If we reached it don't go
|
||||
* any further and stop parsing right here.
|
||||
*/
|
||||
if (record.header.id == TI_AM6_EEPROM_RECORD_END_LIST)
|
||||
break;
|
||||
|
||||
eeprom_addr += sizeof(record.header);
|
||||
|
||||
debug("%s: dev_addr=0x%02x header.id=%u header.len=%u\n",
|
||||
__func__, dev_addr, record.header.id,
|
||||
record.header.len);
|
||||
|
||||
/* Read record into memory if it fits */
|
||||
if (record.header.len <= sizeof(record.data)) {
|
||||
rc = dm_i2c_read(dev, eeprom_addr,
|
||||
(uint8_t *)&record.data,
|
||||
record.header.len);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
/* Process record */
|
||||
rc = ti_i2c_eeprom_am6_parse_record(&record, ep,
|
||||
mac_addr,
|
||||
mac_addr_max_cnt,
|
||||
mac_addr_cnt);
|
||||
if (rc) {
|
||||
pr_err("%s: EEPROM parsing error!\n", __func__);
|
||||
return rc;
|
||||
}
|
||||
} else {
|
||||
/*
|
||||
* We may get here in case of larger records which
|
||||
* are not yet understood.
|
||||
*/
|
||||
pr_err("%s: Ignoring record id %u\n", __func__,
|
||||
record.header.id);
|
||||
}
|
||||
|
||||
eeprom_addr += record.header.len;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr)
|
||||
{
|
||||
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* Always execute EEPROM read by not allowing to bypass it during the
|
||||
* first invocation of SPL which happens on the R5 core.
|
||||
*/
|
||||
#if !(defined(CONFIG_SPL_BUILD) && defined(CONFIG_CPU_V7R))
|
||||
if (ep->header == TI_EEPROM_HEADER_MAGIC) {
|
||||
debug("%s: EEPROM has already been read\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
ret = ti_i2c_eeprom_am6_get(bus_addr, dev_addr, ep,
|
||||
(char **)ep->mac_addr,
|
||||
AM6_EEPROM_HDR_NO_OF_MAC_ADDR,
|
||||
&ep->mac_addr_cnt);
|
||||
return ret;
|
||||
}
|
||||
|
||||
bool __maybe_unused board_ti_is(char *name_tag)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
if (ep->header == TI_DEAD_EEPROM_MAGIC)
|
||||
return false;
|
||||
return !strncmp(ep->name, name_tag, TI_EEPROM_HDR_NAME_LEN);
|
||||
}
|
||||
|
||||
bool __maybe_unused board_ti_rev_is(char *rev_tag, int cmp_len)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
int l;
|
||||
|
||||
if (ep->header == TI_DEAD_EEPROM_MAGIC)
|
||||
return false;
|
||||
|
||||
l = cmp_len > TI_EEPROM_HDR_REV_LEN ? TI_EEPROM_HDR_REV_LEN : cmp_len;
|
||||
return !strncmp(ep->version, rev_tag, l);
|
||||
}
|
||||
|
||||
char * __maybe_unused board_ti_get_rev(void)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
/* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
|
||||
return ep->version;
|
||||
}
|
||||
|
||||
char * __maybe_unused board_ti_get_config(void)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
/* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
|
||||
return ep->config;
|
||||
}
|
||||
|
||||
char * __maybe_unused board_ti_get_name(void)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
/* if ep->header == TI_DEAD_EEPROM_MAGIC, this is empty already */
|
||||
return ep->name;
|
||||
}
|
||||
|
||||
void __maybe_unused
|
||||
board_ti_get_eth_mac_addr(int index,
|
||||
u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
if (ep->header == TI_DEAD_EEPROM_MAGIC)
|
||||
goto fail;
|
||||
|
||||
if (index < 0 || index >= TI_EEPROM_HDR_NO_OF_MAC_ADDR)
|
||||
goto fail;
|
||||
|
||||
memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
|
||||
return;
|
||||
|
||||
fail:
|
||||
memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
|
||||
}
|
||||
|
||||
void __maybe_unused
|
||||
board_ti_am6_get_eth_mac_addr(int index,
|
||||
u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN])
|
||||
{
|
||||
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
||||
|
||||
if (ep->header == TI_DEAD_EEPROM_MAGIC)
|
||||
goto fail;
|
||||
|
||||
if (index < 0 || index >= ep->mac_addr_cnt)
|
||||
goto fail;
|
||||
|
||||
memcpy(mac_addr, ep->mac_addr[index], TI_EEPROM_HDR_ETH_ALEN);
|
||||
return;
|
||||
|
||||
fail:
|
||||
memset(mac_addr, 0, TI_EEPROM_HDR_ETH_ALEN);
|
||||
}
|
||||
|
||||
u64 __maybe_unused board_ti_get_emif1_size(void)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
|
||||
return 0;
|
||||
|
||||
return ep->emif1_size;
|
||||
}
|
||||
|
||||
u64 __maybe_unused board_ti_get_emif2_size(void)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
if (ep->header != DRA7_EEPROM_HEADER_MAGIC)
|
||||
return 0;
|
||||
|
||||
return ep->emif2_size;
|
||||
}
|
||||
|
||||
void __maybe_unused set_board_info_env(char *name)
|
||||
{
|
||||
char *unknown = "unknown";
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
if (name)
|
||||
env_set("board_name", name);
|
||||
else if (ep->name)
|
||||
env_set("board_name", ep->name);
|
||||
else
|
||||
env_set("board_name", unknown);
|
||||
|
||||
if (ep->version)
|
||||
env_set("board_rev", ep->version);
|
||||
else
|
||||
env_set("board_rev", unknown);
|
||||
|
||||
if (ep->serial)
|
||||
env_set("board_serial", ep->serial);
|
||||
else
|
||||
env_set("board_serial", unknown);
|
||||
}
|
||||
|
||||
void __maybe_unused set_board_info_env_am6(char *name)
|
||||
{
|
||||
char *unknown = "unknown";
|
||||
struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
|
||||
|
||||
if (name)
|
||||
env_set("board_name", name);
|
||||
else if (ep->name)
|
||||
env_set("board_name", ep->name);
|
||||
else
|
||||
env_set("board_name", unknown);
|
||||
|
||||
if (ep->version)
|
||||
env_set("board_rev", ep->version);
|
||||
else
|
||||
env_set("board_rev", unknown);
|
||||
|
||||
if (ep->software_revision)
|
||||
env_set("board_software_revision", ep->software_revision);
|
||||
else
|
||||
env_set("board_software_revision", unknown);
|
||||
|
||||
if (ep->serial)
|
||||
env_set("board_serial", ep->serial);
|
||||
else
|
||||
env_set("board_serial", unknown);
|
||||
}
|
||||
|
||||
static u64 mac_to_u64(u8 mac[6])
|
||||
{
|
||||
int i;
|
||||
u64 addr = 0;
|
||||
|
||||
for (i = 0; i < 6; i++) {
|
||||
addr <<= 8;
|
||||
addr |= mac[i];
|
||||
}
|
||||
|
||||
return addr;
|
||||
}
|
||||
|
||||
static void u64_to_mac(u64 addr, u8 mac[6])
|
||||
{
|
||||
mac[5] = addr;
|
||||
mac[4] = addr >> 8;
|
||||
mac[3] = addr >> 16;
|
||||
mac[2] = addr >> 24;
|
||||
mac[1] = addr >> 32;
|
||||
mac[0] = addr >> 40;
|
||||
}
|
||||
|
||||
void board_ti_set_ethaddr(int index)
|
||||
{
|
||||
uint8_t mac_addr[6];
|
||||
int i;
|
||||
u64 mac1, mac2;
|
||||
u8 mac_addr1[6], mac_addr2[6];
|
||||
int num_macs;
|
||||
/*
|
||||
* Export any Ethernet MAC addresses from EEPROM.
|
||||
* The 2 MAC addresses in EEPROM define the address range.
|
||||
*/
|
||||
board_ti_get_eth_mac_addr(0, mac_addr1);
|
||||
board_ti_get_eth_mac_addr(1, mac_addr2);
|
||||
|
||||
if (is_valid_ethaddr(mac_addr1) && is_valid_ethaddr(mac_addr2)) {
|
||||
mac1 = mac_to_u64(mac_addr1);
|
||||
mac2 = mac_to_u64(mac_addr2);
|
||||
|
||||
/* must contain an address range */
|
||||
num_macs = mac2 - mac1 + 1;
|
||||
if (num_macs <= 0)
|
||||
return;
|
||||
|
||||
if (num_macs > 50) {
|
||||
printf("%s: Too many MAC addresses: %d. Limiting to 50\n",
|
||||
__func__, num_macs);
|
||||
num_macs = 50;
|
||||
}
|
||||
|
||||
for (i = 0; i < num_macs; i++) {
|
||||
u64_to_mac(mac1 + i, mac_addr);
|
||||
if (is_valid_ethaddr(mac_addr)) {
|
||||
eth_env_set_enetaddr_by_index("eth", i + index,
|
||||
mac_addr);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void board_ti_am6_set_ethaddr(int index, int count)
|
||||
{
|
||||
u8 mac_addr[6];
|
||||
int i;
|
||||
|
||||
for (i = 0; i < count; i++) {
|
||||
board_ti_am6_get_eth_mac_addr(i, mac_addr);
|
||||
if (is_valid_ethaddr(mac_addr))
|
||||
eth_env_set_enetaddr_by_index("eth", i + index,
|
||||
mac_addr);
|
||||
}
|
||||
}
|
||||
|
||||
bool __maybe_unused board_ti_was_eeprom_read(void)
|
||||
{
|
||||
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
|
||||
|
||||
if (ep->header == TI_EEPROM_HEADER_MAGIC)
|
||||
return true;
|
||||
else
|
||||
return false;
|
||||
}
|
||||
@@ -0,0 +1,439 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0+ */
|
||||
/*
|
||||
* Library to support early TI EVM EEPROM handling
|
||||
*
|
||||
* Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com
|
||||
*/
|
||||
|
||||
#ifndef __BOARD_DETECT_H
|
||||
#define __BOARD_DETECT_H
|
||||
|
||||
/* TI EEPROM MAGIC Header identifier */
|
||||
#define TI_EEPROM_HEADER_MAGIC 0xEE3355AA
|
||||
#define TI_DEAD_EEPROM_MAGIC 0xADEAD12C
|
||||
|
||||
#define TI_EEPROM_HDR_NAME_LEN 8
|
||||
#define TI_EEPROM_HDR_REV_LEN 4
|
||||
#define TI_EEPROM_HDR_SERIAL_LEN 12
|
||||
#define TI_EEPROM_HDR_CONFIG_LEN 32
|
||||
#define TI_EEPROM_HDR_NO_OF_MAC_ADDR 3
|
||||
#define TI_EEPROM_HDR_ETH_ALEN 6
|
||||
|
||||
/**
|
||||
* struct ti_am_eeprom - This structure holds data read in from the
|
||||
* AM335x, AM437x, AM57xx TI EVM EEPROMs.
|
||||
* @header: This holds the magic number
|
||||
* @name: The name of the board
|
||||
* @version: Board revision
|
||||
* @serial: Board serial number
|
||||
* @config: Reserved
|
||||
* @mac_addr: Any MAC addresses written in the EEPROM
|
||||
*
|
||||
* The data is this structure is read from the EEPROM on the board.
|
||||
* It is used for board detection which is based on name. It is used
|
||||
* to configure specific TI boards. This allows booting of multiple
|
||||
* TI boards with a single MLO and u-boot.
|
||||
*/
|
||||
struct ti_am_eeprom {
|
||||
unsigned int header;
|
||||
char name[TI_EEPROM_HDR_NAME_LEN];
|
||||
char version[TI_EEPROM_HDR_REV_LEN];
|
||||
char serial[TI_EEPROM_HDR_SERIAL_LEN];
|
||||
char config[TI_EEPROM_HDR_CONFIG_LEN];
|
||||
char mac_addr[TI_EEPROM_HDR_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* AM6x TI EVM EEPROM Definitions */
|
||||
#define TI_AM6_EEPROM_RECORD_BOARD_ID 0x01
|
||||
#define TI_AM6_EEPROM_RECORD_BOARD_INFO 0x10
|
||||
#define TI_AM6_EEPROM_RECORD_DDR_INFO 0x11
|
||||
#define TI_AM6_EEPROM_RECORD_DDR_SPD 0x12
|
||||
#define TI_AM6_EEPROM_RECORD_MAC_INFO 0x13
|
||||
#define TI_AM6_EEPROM_RECORD_END_LIST 0xFE
|
||||
|
||||
/*
|
||||
* Common header for AM6x TI EVM EEPROM records. Used to encapsulate the config
|
||||
* EEPROM in its entirety as well as for individual records contained within.
|
||||
*/
|
||||
struct ti_am6_eeprom_record_header {
|
||||
u8 id;
|
||||
u16 len;
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* AM6x TI EVM EEPROM board ID structure */
|
||||
struct ti_am6_eeprom_record_board_id {
|
||||
u32 magic_number;
|
||||
struct ti_am6_eeprom_record_header header;
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* AM6x TI EVM EEPROM board info structure */
|
||||
#define AM6_EEPROM_HDR_NAME_LEN 16
|
||||
#define AM6_EEPROM_HDR_VERSION_LEN 2
|
||||
#define AM6_EEPROM_HDR_PROC_NR_LEN 4
|
||||
#define AM6_EEPROM_HDR_VARIANT_LEN 2
|
||||
#define AM6_EEPROM_HDR_PCB_REV_LEN 2
|
||||
#define AM6_EEPROM_HDR_SCH_BOM_REV_LEN 2
|
||||
#define AM6_EEPROM_HDR_SW_REV_LEN 2
|
||||
#define AM6_EEPROM_HDR_VID_LEN 2
|
||||
#define AM6_EEPROM_HDR_BLD_WK_LEN 2
|
||||
#define AM6_EEPROM_HDR_BLD_YR_LEN 2
|
||||
#define AM6_EEPROM_HDR_4P_NR_LEN 6
|
||||
#define AM6_EEPROM_HDR_SERIAL_LEN 4
|
||||
|
||||
struct ti_am6_eeprom_record_board_info {
|
||||
char name[AM6_EEPROM_HDR_NAME_LEN];
|
||||
char version[AM6_EEPROM_HDR_VERSION_LEN];
|
||||
char proc_number[AM6_EEPROM_HDR_PROC_NR_LEN];
|
||||
char variant[AM6_EEPROM_HDR_VARIANT_LEN];
|
||||
char pcb_revision[AM6_EEPROM_HDR_PCB_REV_LEN];
|
||||
char schematic_bom_revision[AM6_EEPROM_HDR_SCH_BOM_REV_LEN];
|
||||
char software_revision[AM6_EEPROM_HDR_SW_REV_LEN];
|
||||
char vendor_id[AM6_EEPROM_HDR_VID_LEN];
|
||||
char build_week[AM6_EEPROM_HDR_BLD_WK_LEN];
|
||||
char build_year[AM6_EEPROM_HDR_BLD_YR_LEN];
|
||||
char board_4p_number[AM6_EEPROM_HDR_4P_NR_LEN];
|
||||
char serial[AM6_EEPROM_HDR_SERIAL_LEN];
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* Memory location to keep a copy of the AM6 board info record */
|
||||
#define TI_AM6_EEPROM_BD_INFO_DATA ((struct ti_am6_eeprom_record_board_info *) \
|
||||
TI_SRAM_SCRATCH_BOARD_EEPROM_START)
|
||||
|
||||
/* AM6x TI EVM EEPROM DDR info structure */
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_INSTANCE_MASK GENMASK(1, 0)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_INSTANCE_SHIFT 0
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_MASK GENMASK(3, 2)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_NA (0 << 2)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_BOARDID (2 << 2)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_I2C51 (3 << 2)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_MASK GENMASK(5, 4)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_DDR3 (0 << 4)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_DDR4 (1 << 4)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_LPDDR4 (2 << 4)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_MASK GENMASK(7, 6)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_16 (0 << 6)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_32 (1 << 6)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_64 (2 << 6)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_MASK GENMASK(9, 8)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_8 (0 << 8)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_16 (1 << 8)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_32 (2 << 8)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_RANKS_2 BIT(10)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_MASK GENMASK(13, 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_1GB (0 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_2GB (1 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_4GB (2 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_8GB (3 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_12GB (4 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_16GB (5 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_24GB (6 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_DENS_32GB (7 << 11)
|
||||
#define TI_AM6_EEPROM_DDR_CTRL_ECC BIT(14)
|
||||
|
||||
struct ti_am6_eeprom_record_ddr_info {
|
||||
u16 ddr_control;
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* AM6x TI EVM EEPROM DDR SPD structure */
|
||||
#define TI_AM6_EEPROM_DDR_SPD_INSTANCE_MASK GENMASK(1, 0)
|
||||
#define TI_AM6_EEPROM_DDR_SPD_INSTANCE_SHIFT 0
|
||||
#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_MASK GENMASK(4, 3)
|
||||
#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_DDR3 (0 << 3)
|
||||
#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_DDR4 (1 << 3)
|
||||
#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_LPDDR4 (2 << 3)
|
||||
#define TI_AM6_EEPROM_DDR_SPD_DATA_LEN 512
|
||||
|
||||
struct ti_am6_eeprom_record_ddr_spd {
|
||||
u16 spd_control;
|
||||
u8 data[TI_AM6_EEPROM_DDR_SPD_DATA_LEN];
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* AM6x TI EVM EEPROM MAC info structure */
|
||||
#define TI_AM6_EEPROM_MAC_INFO_INSTANCE_MASK GENMASK(2, 0)
|
||||
#define TI_AM6_EEPROM_MAC_INFO_INSTANCE_SHIFT 0
|
||||
#define TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK GENMASK(7, 3)
|
||||
#define TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT 3
|
||||
#define TI_AM6_EEPROM_MAC_ADDR_MAX_COUNT 32
|
||||
|
||||
struct ti_am6_eeprom_record_mac_info {
|
||||
u16 mac_control;
|
||||
u8 mac_addr[TI_AM6_EEPROM_MAC_ADDR_MAX_COUNT][TI_EEPROM_HDR_ETH_ALEN];
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
struct ti_am6_eeprom_record {
|
||||
struct ti_am6_eeprom_record_header header;
|
||||
union {
|
||||
struct ti_am6_eeprom_record_board_info board_info;
|
||||
struct ti_am6_eeprom_record_ddr_info ddr_info;
|
||||
struct ti_am6_eeprom_record_ddr_spd ddr_spd;
|
||||
struct ti_am6_eeprom_record_mac_info mac_info;
|
||||
} data;
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/* DRA7 EEPROM MAGIC Header identifier */
|
||||
#define DRA7_EEPROM_HEADER_MAGIC 0xAA5533EE
|
||||
#define DRA7_EEPROM_HDR_NAME_LEN 16
|
||||
#define DRA7_EEPROM_HDR_CONFIG_LEN 4
|
||||
|
||||
/**
|
||||
* struct dra7_eeprom - This structure holds data read in from the DRA7 EVM
|
||||
* EEPROMs.
|
||||
* @header: This holds the magic number
|
||||
* @name: The name of the board
|
||||
* @version_major: Board major version
|
||||
* @version_minor: Board minor version
|
||||
* @config: Board specific config options
|
||||
* @emif1_size: Size of DDR attached to EMIF1
|
||||
* @emif2_size: Size of DDR attached to EMIF2
|
||||
*
|
||||
* The data is this structure is read from the EEPROM on the board.
|
||||
* It is used for board detection which is based on name. It is used
|
||||
* to configure specific DRA7 boards. This allows booting of multiple
|
||||
* DRA7 boards with a single MLO and u-boot.
|
||||
*/
|
||||
struct dra7_eeprom {
|
||||
u32 header;
|
||||
char name[DRA7_EEPROM_HDR_NAME_LEN];
|
||||
u16 version_major;
|
||||
u16 version_minor;
|
||||
char config[DRA7_EEPROM_HDR_CONFIG_LEN];
|
||||
u32 emif1_size;
|
||||
u32 emif2_size;
|
||||
} __attribute__ ((__packed__));
|
||||
|
||||
/**
|
||||
* struct ti_common_eeprom - Null terminated, usable EEPROM contents.
|
||||
* header: Magic number
|
||||
* @name: NULL terminated name
|
||||
* @version: NULL terminated version
|
||||
* @serial: NULL terminated serial number
|
||||
* @config: NULL terminated Board specific config options
|
||||
* @mac_addr: MAC addresses
|
||||
* @emif1_size: Size of the ddr available on emif1
|
||||
* @emif2_size: Size of the ddr available on emif2
|
||||
*/
|
||||
struct ti_common_eeprom {
|
||||
u32 header;
|
||||
char name[TI_EEPROM_HDR_NAME_LEN + 1];
|
||||
char version[TI_EEPROM_HDR_REV_LEN + 1];
|
||||
char serial[TI_EEPROM_HDR_SERIAL_LEN + 1];
|
||||
char config[TI_EEPROM_HDR_CONFIG_LEN + 1];
|
||||
char mac_addr[TI_EEPROM_HDR_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
|
||||
u64 emif1_size;
|
||||
u64 emif2_size;
|
||||
};
|
||||
|
||||
#define TI_EEPROM_DATA ((struct ti_common_eeprom *)\
|
||||
TI_SRAM_SCRATCH_BOARD_EEPROM_START)
|
||||
|
||||
/*
|
||||
* Maximum number of Ethernet MAC addresses extracted from the AM6x on-board
|
||||
* EEPROM during the initial probe and carried forward in SRAM.
|
||||
*/
|
||||
#define AM6_EEPROM_HDR_NO_OF_MAC_ADDR 8
|
||||
|
||||
/**
|
||||
* struct ti_am6_eeprom - Null terminated, usable EEPROM contents, as extracted
|
||||
* from the AM6 on-board EEPROM. Note that we only carry a subset of data
|
||||
* at this time to be considerate about memory consumption.
|
||||
* @header: Magic number for data validity indication
|
||||
* @name: NULL terminated name
|
||||
* @version: NULL terminated version
|
||||
* @software_revision: NULL terminated software revision
|
||||
* @serial: Board serial number
|
||||
* @mac_addr_cnt: Number of MAC addresses stored in this object
|
||||
* @mac_addr: MAC addresses
|
||||
*/
|
||||
struct ti_am6_eeprom {
|
||||
u32 header;
|
||||
char name[AM6_EEPROM_HDR_NAME_LEN + 1];
|
||||
char version[AM6_EEPROM_HDR_VERSION_LEN + 1];
|
||||
char software_revision[AM6_EEPROM_HDR_SW_REV_LEN + 1];
|
||||
char serial[AM6_EEPROM_HDR_SERIAL_LEN + 1];
|
||||
u8 mac_addr_cnt;
|
||||
char mac_addr[AM6_EEPROM_HDR_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
|
||||
};
|
||||
|
||||
#define TI_AM6_EEPROM_DATA ((struct ti_am6_eeprom *) \
|
||||
TI_SRAM_SCRATCH_BOARD_EEPROM_START)
|
||||
|
||||
/**
|
||||
* ti_i2c_eeprom_am_get() - Consolidated eeprom data collection for AM* TI EVMs
|
||||
* @bus_addr: I2C bus address
|
||||
* @dev_addr: I2C slave address
|
||||
*
|
||||
* ep in SRAM is populated by the this AM generic function that consolidates
|
||||
* the basic initialization logic common across all AM* platforms.
|
||||
*/
|
||||
int ti_i2c_eeprom_am_get(int bus_addr, int dev_addr);
|
||||
|
||||
/**
|
||||
* ti_i2c_eeprom_dra7_get() - Consolidated eeprom data for DRA7 TI EVMs
|
||||
* @bus_addr: I2C bus address
|
||||
* @dev_addr: I2C slave address
|
||||
*/
|
||||
int ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr);
|
||||
|
||||
/**
|
||||
* ti_i2c_eeprom_am6_get() - Consolidated eeprom data for AM6x TI EVMs and
|
||||
* associated daughter cards, parsed into user-
|
||||
* provided data structures
|
||||
* @bus_addr: I2C bus address
|
||||
* @dev_addr: I2C slave address
|
||||
* @ep: Pointer to structure receiving AM6-specific header data
|
||||
* @mac_addr: Pointer to memory receiving parsed MAC addresses. May be
|
||||
* NULL to skip MAC parsing.
|
||||
* @mac_addr_max_cnt: Maximum number of MAC addresses that can be stored into
|
||||
* mac_addr. May be NULL to skip MAC parsing.
|
||||
* @mac_addr_cnt: Pointer to a location returning how many MAC addressed got
|
||||
* actually parsed.
|
||||
*/
|
||||
int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
|
||||
struct ti_am6_eeprom *ep,
|
||||
char **mac_addr,
|
||||
u8 mac_addr_max_cnt,
|
||||
u8 *mac_addr_cnt);
|
||||
|
||||
/**
|
||||
* ti_i2c_eeprom_am6_get_base() - Consolidated eeprom data for AM6x TI EVMs
|
||||
* @bus_addr: I2C bus address
|
||||
* @dev_addr: I2C slave address
|
||||
*/
|
||||
int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr);
|
||||
|
||||
/**
|
||||
* board_ti_is() - Board detection logic for TI EVMs
|
||||
* @name_tag: Tag used in eeprom for the board
|
||||
*
|
||||
* Return: false if board information does not match OR eeprom wasn't read.
|
||||
* true otherwise
|
||||
*/
|
||||
bool board_ti_is(char *name_tag);
|
||||
|
||||
/**
|
||||
* board_ti_rev_is() - Compare board revision for TI EVMs
|
||||
* @rev_tag: Revision tag to check in eeprom
|
||||
* @cmp_len: How many chars to compare?
|
||||
*
|
||||
* NOTE: revision information is often messed up (hence the str len match) :(
|
||||
*
|
||||
* Return: false if board information does not match OR eeprom wasn't read.
|
||||
* true otherwise
|
||||
*/
|
||||
bool board_ti_rev_is(char *rev_tag, int cmp_len);
|
||||
|
||||
/**
|
||||
* board_ti_get_rev() - Get board revision for TI EVMs
|
||||
*
|
||||
* Return: Empty string if eeprom wasn't read.
|
||||
* Board revision otherwise
|
||||
*/
|
||||
char *board_ti_get_rev(void);
|
||||
|
||||
/**
|
||||
* board_ti_get_config() - Get board config for TI EVMs
|
||||
*
|
||||
* Return: Empty string if eeprom wasn't read.
|
||||
* Board config otherwise
|
||||
*/
|
||||
char *board_ti_get_config(void);
|
||||
|
||||
/**
|
||||
* board_ti_get_name() - Get board name for TI EVMs
|
||||
*
|
||||
* Return: Empty string if eeprom wasn't read.
|
||||
* Board name otherwise
|
||||
*/
|
||||
char *board_ti_get_name(void);
|
||||
|
||||
/**
|
||||
* board_ti_get_eth_mac_addr() - Get Ethernet MAC address from EEPROM MAC list
|
||||
* @index: 0 based index within the list of MAC addresses
|
||||
* @mac_addr: MAC address contained at the index is returned here
|
||||
*
|
||||
* Does not sanity check the mac_addr. Whatever is stored in EEPROM is returned.
|
||||
*/
|
||||
void board_ti_get_eth_mac_addr(int index, u8 mac_addr[TI_EEPROM_HDR_ETH_ALEN]);
|
||||
|
||||
/**
|
||||
* board_ti_get_emif1_size() - Get size of the DDR on emif1 for TI EVMs
|
||||
*
|
||||
* Return: NULL if eeprom wasn't read or emif1_size is not available.
|
||||
*/
|
||||
u64 board_ti_get_emif1_size(void);
|
||||
|
||||
/**
|
||||
* board_ti_get_emif2_size() - Get size of the DDR on emif2 for TI EVMs
|
||||
*
|
||||
* Return: NULL if eeprom wasn't read or emif2_size is not available.
|
||||
*/
|
||||
u64 board_ti_get_emif2_size(void);
|
||||
|
||||
/**
|
||||
* set_board_info_env() - Setup commonly used board information environment vars
|
||||
* @name: Name of the board
|
||||
*
|
||||
* If name is NULL, default_name is used.
|
||||
*/
|
||||
void set_board_info_env(char *name);
|
||||
|
||||
/**
|
||||
* set_board_info_env_am6() - Setup commonly used board information environment
|
||||
* vars for AM6-type boards
|
||||
* @name: Name of the board
|
||||
*
|
||||
* If name is NULL, default_name is used.
|
||||
*/
|
||||
void set_board_info_env_am6(char *name);
|
||||
|
||||
/**
|
||||
* board_ti_set_ethaddr- Sets the ethaddr environment from EEPROM
|
||||
* @index: The first eth<index>addr environment variable to set
|
||||
*
|
||||
* EEPROM should be already read before calling this function.
|
||||
* The EEPROM contains 2 MAC addresses which define the MAC address
|
||||
* range (i.e. first and last MAC address).
|
||||
* This function sets the ethaddr environment variable for all
|
||||
* the available MAC addresses starting from eth<index>addr.
|
||||
*/
|
||||
void board_ti_set_ethaddr(int index);
|
||||
|
||||
/**
|
||||
* board_ti_am6_set_ethaddr- Sets the ethaddr environment from EEPROM
|
||||
* @index: The first eth<index>addr environment variable to set
|
||||
* @count: The number of MAC addresses to process
|
||||
*
|
||||
* EEPROM should be already read before calling this function. The EEPROM
|
||||
* contains n dedicated MAC addresses. This function sets the ethaddr
|
||||
* environment variable for all the available MAC addresses starting
|
||||
* from eth<index>addr.
|
||||
*/
|
||||
void board_ti_am6_set_ethaddr(int index, int count);
|
||||
|
||||
/**
|
||||
* board_ti_was_eeprom_read() - Check to see if the eeprom contents have been read
|
||||
*
|
||||
* This function is useful to determine if the eeprom has already been read and
|
||||
* its contents have already been loaded into memory. It utiltzes the magic
|
||||
* number that the header value is set to upon successful eeprom read.
|
||||
*/
|
||||
bool board_ti_was_eeprom_read(void);
|
||||
|
||||
/**
|
||||
* ti_i2c_eeprom_am_set() - Setup the eeprom data with predefined values
|
||||
* @name: Name of the board
|
||||
* @rev: Revision of the board
|
||||
*
|
||||
* In some cases such as in RTC-only mode, we are able to skip reading eeprom
|
||||
* and wasting i2c based initialization time by using predefined flags for
|
||||
* detecting what platform we are booting on. For those platforms, provide
|
||||
* a handy function to pre-program information.
|
||||
*
|
||||
* NOTE: many eeprom information such as serial number, mac address etc is not
|
||||
* available.
|
||||
*
|
||||
* Return: 0 if all went fine, else return error.
|
||||
*/
|
||||
int ti_i2c_eeprom_am_set(const char *name, const char *rev);
|
||||
|
||||
#endif /* __BOARD_DETECT_H */
|
||||
Reference in New Issue
Block a user