diff options
Diffstat (limited to 'roms/u-boot/board/siemens/common/factoryset.c')
| -rw-r--r-- | roms/u-boot/board/siemens/common/factoryset.c | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/roms/u-boot/board/siemens/common/factoryset.c b/roms/u-boot/board/siemens/common/factoryset.c new file mode 100644 index 000000000..2e3ae1a54 --- /dev/null +++ b/roms/u-boot/board/siemens/common/factoryset.c @@ -0,0 +1,415 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * + * Read FactorySet information from EEPROM into global structure. + * (C) Copyright 2013 Siemens Schweiz AG + */ + +#if !defined(CONFIG_SPL_BUILD) + +#include <common.h> +#include <env.h> +#include <dm.h> +#include <env_internal.h> +#include <i2c.h> +#include <log.h> +#include <asm/io.h> +#if !CONFIG_IS_ENABLED(TARGET_GIEDI) && !CONFIG_IS_ENABLED(TARGET_DENEB) +#include <asm/arch/cpu.h> +#endif +#include <asm/arch/sys_proto.h> +#include <asm/unaligned.h> +#include <net.h> +#include <errno.h> +#include <g_dnl.h> +#include "factoryset.h" + +#define EEPR_PG_SZ 0x80 +#define EEPROM_FATORYSET_OFFSET 0x400 +#define OFF_PG EEPROM_FATORYSET_OFFSET/EEPR_PG_SZ + +/* Global variable that contains necessary information from FactorySet */ +struct factorysetcontainer factory_dat; + +#define fact_get_char(i) *((char *)&eeprom_buf[i]) + +static int fact_match(unsigned char *eeprom_buf, uchar *s1, int i2) +{ + if (s1 == NULL) + return -1; + + while (*s1 == fact_get_char(i2++)) + if (*s1++ == '=') + return i2; + + if (*s1 == '\0' && fact_get_char(i2-1) == '=') + return i2; + + return -1; +} + +static int get_factory_val(unsigned char *eeprom_buf, int size, uchar *name, + uchar *buf, int len) +{ + int i, nxt = 0; + + for (i = 0; fact_get_char(i) != '\0'; i = nxt + 1) { + int val, n; + + for (nxt = i; fact_get_char(nxt) != '\0'; ++nxt) { + if (nxt >= size) + return -1; + } + + val = fact_match(eeprom_buf, (uchar *)name, i); + if (val < 0) + continue; + + /* found; copy out */ + for (n = 0; n < len; ++n, ++buf) { + *buf = fact_get_char(val++); + if (*buf == '\0') + return n; + } + + if (n) + *--buf = '\0'; + + printf("env_buf [%d bytes] too small for value of \"%s\"\n", + len, name); + + return n; + } + return -1; +} + +static +int get_factory_record_val(unsigned char *eeprom_buf, int size, uchar *record, + uchar *name, uchar *buf, int len) +{ + int ret = -1; + int i, nxt = 0; + int c; + unsigned char end = 0xff; + unsigned char tmp; + + for (i = 0; fact_get_char(i) != end; i = nxt) { + nxt = i + 1; + if (fact_get_char(i) == '>') { + int pos; + int endpos; + int z; + int level = 0; + + c = strncmp((char *)&eeprom_buf[i + 1], (char *)record, + strlen((char *)record)); + if (c == 0) { + /* record found */ + pos = i + strlen((char *)record) + 2; + nxt = pos; + /* search for "<" */ + c = -1; + for (z = pos; fact_get_char(z) != end; z++) { + if (fact_get_char(z) == '<') { + if (level == 0) { + endpos = z; + nxt = endpos; + c = 0; + break; + } else { + level--; + } + } + if (fact_get_char(z) == '>') + level++; + } + } else { + continue; + } + if (c == 0) { + /* end found -> call get_factory_val */ + tmp = eeprom_buf[endpos]; + eeprom_buf[endpos] = end; + ret = get_factory_val(&eeprom_buf[pos], + endpos - pos, name, buf, len); + /* fix buffer */ + eeprom_buf[endpos] = tmp; + debug("%s: %s.%s = %s\n", + __func__, record, name, buf); + return ret; + } + } + } + return ret; +} + +int factoryset_read_eeprom(int i2c_addr) +{ + int i, pages = 0, size = 0; + unsigned char eeprom_buf[0x3c00], hdr[4], buf[MAX_STRING_LENGTH]; + unsigned char *cp, *cp1; +#if CONFIG_IS_ENABLED(DM_I2C) + struct udevice *bus, *dev; + int ret; +#endif + +#if defined(CONFIG_DFU_OVER_USB) + factory_dat.usb_vendor_id = CONFIG_USB_GADGET_VENDOR_NUM; + factory_dat.usb_product_id = CONFIG_USB_GADGET_PRODUCT_NUM; +#endif + +#if CONFIG_IS_ENABLED(DM_I2C) + ret = uclass_get_device_by_seq(UCLASS_I2C, EEPROM_I2C_BUS, &bus); + if (ret) + goto err; + + ret = dm_i2c_probe(bus, i2c_addr, 0, &dev); + if (ret) + goto err; + + ret = i2c_set_chip_offset_len(dev, 2); + if (ret) + goto err; + + ret = dm_i2c_read(dev, EEPROM_FATORYSET_OFFSET, hdr, sizeof(hdr)); + if (ret) + goto err; +#else + if (i2c_probe(i2c_addr)) + goto err; + + if (i2c_read(i2c_addr, EEPROM_FATORYSET_OFFSET, 2, hdr, sizeof(hdr))) + goto err; +#endif + + if ((hdr[0] != 0x99) || (hdr[1] != 0x80)) { + printf("FactorySet is not right in eeprom.\n"); + return 1; + } + + /* get FactorySet size */ + size = (hdr[2] << 8) + hdr[3] + sizeof(hdr); + if (size > 0x3bfa) + size = 0x3bfa; + + pages = size / EEPR_PG_SZ; + + /* + * read the eeprom using i2c + * I can not read entire eeprom in once, so separate into several + * times. Furthermore, fetch eeprom take longer time, so we fetch + * data after every time we got a record from eeprom + */ + debug("Read eeprom page :\n"); + for (i = 0; i < pages; i++) { +#if CONFIG_IS_ENABLED(DM_I2C) + ret = dm_i2c_read(dev, (OFF_PG + i) * EEPR_PG_SZ, + eeprom_buf + (i * EEPR_PG_SZ), EEPR_PG_SZ); + if (ret) + goto err; +#else + if (i2c_read(i2c_addr, (OFF_PG + i) * EEPR_PG_SZ, 2, + eeprom_buf + (i * EEPR_PG_SZ), EEPR_PG_SZ)) + goto err; +#endif + } + + if (size % EEPR_PG_SZ) { +#if CONFIG_IS_ENABLED(DM_I2C) + ret = dm_i2c_read(dev, (OFF_PG + pages) * EEPR_PG_SZ, + eeprom_buf + (pages * EEPR_PG_SZ), + size % EEPR_PG_SZ); + if (ret) + goto err; +#else + if (i2c_read(i2c_addr, (OFF_PG + pages) * EEPR_PG_SZ, 2, + eeprom_buf + (pages * EEPR_PG_SZ), + (size % EEPR_PG_SZ))) + goto err; +#endif + } + + /* we do below just for eeprom align */ + for (i = 0; i < size; i++) + if (eeprom_buf[i] == '\n') + eeprom_buf[i] = 0; + + /* skip header */ + size -= sizeof(hdr); + cp = (uchar *)eeprom_buf + sizeof(hdr); + + /* get mac address */ + get_factory_record_val(cp, size, (uchar *)"ETH1", (uchar *)"mac", + buf, MAX_STRING_LENGTH); + cp1 = buf; + for (i = 0; i < 6; i++) { + factory_dat.mac[i] = simple_strtoul((char *)cp1, NULL, 16); + cp1 += 3; + } + +#if CONFIG_IS_ENABLED(TARGET_GIEDI) || CONFIG_IS_ENABLED(TARGET_DENEB) + /* get mac address for WLAN */ + ret = get_factory_record_val(cp, size, (uchar *)"WLAN1", (uchar *)"mac", + buf, MAX_STRING_LENGTH); + if (ret > 0) { + cp1 = buf; + for (i = 0; i < 6; i++) { + factory_dat.mac_wlan[i] = simple_strtoul((char *)cp1, + NULL, 16); + cp1 += 3; + } + } +#endif + +#if defined(CONFIG_DFU_OVER_USB) + /* read vid and pid for dfu mode */ + if (0 <= get_factory_record_val(cp, size, (uchar *)"USBD1", + (uchar *)"vid", buf, + MAX_STRING_LENGTH)) { + factory_dat.usb_vendor_id = simple_strtoul((char *)buf, + NULL, 16); + } + + if (0 <= get_factory_record_val(cp, size, (uchar *)"USBD1", + (uchar *)"pid", buf, + MAX_STRING_LENGTH)) { + factory_dat.usb_product_id = simple_strtoul((char *)buf, + NULL, 16); + } + printf("DFU USB: VID = 0x%4x, PID = 0x%4x\n", factory_dat.usb_vendor_id, + factory_dat.usb_product_id); +#endif +#if defined(CONFIG_VIDEO) + if (0 <= get_factory_record_val(cp, size, (uchar *)"DISP1", + (uchar *)"name", factory_dat.disp_name, + MAX_STRING_LENGTH)) { + debug("display name: %s\n", factory_dat.disp_name); + } +#endif + if (0 <= get_factory_record_val(cp, size, (uchar *)"DEV", + (uchar *)"num", factory_dat.serial, + MAX_STRING_LENGTH)) { + debug("serial number: %s\n", factory_dat.serial); + } + if (0 <= get_factory_record_val(cp, size, (uchar *)"DEV", + (uchar *)"ver", buf, + MAX_STRING_LENGTH)) { + factory_dat.version = simple_strtoul((char *)buf, + NULL, 16); + debug("version number: %d\n", factory_dat.version); + } + /* Get ASN from factory set if available */ + if (0 <= get_factory_record_val(cp, size, (uchar *)"DEV", + (uchar *)"id", factory_dat.asn, + MAX_STRING_LENGTH)) { + debug("factoryset asn: %s\n", factory_dat.asn); + } else { + factory_dat.asn[0] = 0; + } + /* Get COMP/ver from factory set if available */ + if (0 <= get_factory_record_val(cp, size, (uchar *)"COMP", + (uchar *)"ver", + factory_dat.comp_version, + MAX_STRING_LENGTH)) { + debug("factoryset COMP/ver: %s\n", factory_dat.comp_version); + } else { + strcpy((char *)factory_dat.comp_version, "1.0"); + } + + return 0; + +err: + printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\n"); + return 1; +} + +static int get_mac_from_efuse(uint8_t mac[6]) +{ +#ifdef CONFIG_AM33XX + struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + uint32_t mac_hi, mac_lo; + + mac_lo = readl(&cdev->macid0l); + mac_hi = readl(&cdev->macid0h); + + mac[0] = mac_hi & 0xFF; + mac[1] = (mac_hi & 0xFF00) >> 8; + mac[2] = (mac_hi & 0xFF0000) >> 16; + mac[3] = (mac_hi & 0xFF000000) >> 24; + mac[4] = mac_lo & 0xFF; + mac[5] = (mac_lo & 0xFF00) >> 8; +#else + /* unhandled */ + memset(mac, 0, 6); +#endif + if (!is_valid_ethaddr(mac)) { + puts("Warning: ethaddr not set by FactorySet or E-fuse. "); + puts("Set <ethaddr> variable to overcome this.\n"); + return -1; + } + return 0; +} + +static int factoryset_mac_env_set(void) +{ + uint8_t mac_addr[6]; + + /* Set mac from factoryset or try reading E-fuse */ + debug("FactorySet: Set mac address\n"); + if (is_valid_ethaddr(factory_dat.mac)) { + memcpy(mac_addr, factory_dat.mac, 6); + } else { + debug("Warning: FactorySet: <ethaddr> not set. Fallback to E-fuse\n"); + if (get_mac_from_efuse(mac_addr) < 0) + return -1; + } + + eth_env_set_enetaddr("ethaddr", mac_addr); + +#if CONFIG_IS_ENABLED(TARGET_GIEDI) || CONFIG_IS_ENABLED(TARGET_DENEB) + eth_env_set_enetaddr("eth1addr", mac_addr); + + /* wlan mac */ + if (is_valid_ethaddr(factory_dat.mac_wlan)) + eth_env_set_enetaddr("eth2addr", factory_dat.mac_wlan); +#endif + return 0; +} + +static void factoryset_dtb_env_set(void) +{ + /* Set ASN in environment*/ + if (factory_dat.asn[0] != 0) { + env_set("dtb_name", (char *)factory_dat.asn); + } else { + /* dtb suffix gets added in load script */ + env_set("dtb_name", "default"); + } +} + +int factoryset_env_set(void) +{ + int ret = 0; + + factoryset_dtb_env_set(); + + if (factoryset_mac_env_set() < 0) + ret = -1; + + return ret; +} + +int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name) +{ + put_unaligned(factory_dat.usb_vendor_id, &dev->idVendor); + put_unaligned(factory_dat.usb_product_id, &dev->idProduct); + g_dnl_set_serialnumber((char *)factory_dat.serial); + + return 0; +} + +int g_dnl_get_board_bcd_device_number(int gcnum) +{ + return factory_dat.version; +} +#endif /* defined(CONFIG_SPL_BUILD) */ |