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https://github.com/smaeul/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2021
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* Köry Maincent, Bootlin, <kory.maincent@bootlin.com>
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*/
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#include <common.h>
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#include <malloc.h>
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#include <i2c.h>
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#include <extension_board.h>
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#include "cape_detect.h"
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static void sanitize_field(char *text, size_t size)
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{
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char *c = NULL;
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for (c = text; c < text + (int)size; c++) {
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if (*c == 0xFF)
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*c = 0;
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}
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}
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int extension_board_scan(struct list_head *extension_list)
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{
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struct extension *cape;
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struct am335x_cape_eeprom_id eeprom_header;
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int num_capes = 0;
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int ret, i;
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struct udevice *dev;
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unsigned char addr;
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char process_cape_part_number[17] = {'0'};
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char process_cape_version[5] = {'0'};
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uint8_t cursor = 0;
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for (addr = CAPE_EEPROM_FIRST_ADDR; addr <= CAPE_EEPROM_LAST_ADDR; addr++) {
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ret = i2c_get_chip_for_busnum(CONFIG_CAPE_EEPROM_BUS_NUM, addr, 1, &dev);
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if (ret)
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continue;
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/* Move the read cursor to the beginning of the EEPROM */
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dm_i2c_write(dev, 0, &cursor, 1);
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ret = dm_i2c_read(dev, 0, (uint8_t *)&eeprom_header,
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sizeof(struct am335x_cape_eeprom_id));
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if (ret) {
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printf("Cannot read i2c EEPROM\n");
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continue;
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}
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if (eeprom_header.header != CAPE_MAGIC)
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continue;
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sanitize_field(eeprom_header.board_name, sizeof(eeprom_header.board_name));
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sanitize_field(eeprom_header.version, sizeof(eeprom_header.version));
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sanitize_field(eeprom_header.manufacturer, sizeof(eeprom_header.manufacturer));
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sanitize_field(eeprom_header.part_number, sizeof(eeprom_header.part_number));
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/* Process cape part_number */
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memset(process_cape_part_number, 0, sizeof(process_cape_part_number));
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strncpy(process_cape_part_number, eeprom_header.part_number, 16);
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/* Some capes end with '.' */
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for (i = 15; i >= 0; i--) {
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if (process_cape_part_number[i] == '.')
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process_cape_part_number[i] = '\0';
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else
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break;
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}
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/* Process cape version */
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memset(process_cape_version, 0, sizeof(process_cape_version));
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strncpy(process_cape_version, eeprom_header.version, 4);
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for (i = 0; i < 4; i++) {
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if (process_cape_version[i] == 0)
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process_cape_version[i] = '0';
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}
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printf("BeagleBone Cape: %s (0x%x)\n", eeprom_header.board_name, addr);
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cape = calloc(1, sizeof(struct extension));
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if (!cape) {
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printf("Error in memory allocation\n");
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return num_capes;
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}
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snprintf(cape->overlay, sizeof(cape->overlay), "%s-%s.dtbo",
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process_cape_part_number, process_cape_version);
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strncpy(cape->name, eeprom_header.board_name, 32);
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strncpy(cape->version, process_cape_version, 4);
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strncpy(cape->owner, eeprom_header.manufacturer, 16);
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list_add_tail(&cape->list, extension_list);
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num_capes++;
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}
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return num_capes;
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}
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