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-rw-r--r--board/siemens/common/factoryset.c284
1 files changed, 284 insertions, 0 deletions
diff --git a/board/siemens/common/factoryset.c b/board/siemens/common/factoryset.c
new file mode 100644
index 0000000..eda9141
--- /dev/null
+++ b/board/siemens/common/factoryset.c
@@ -0,0 +1,284 @@
+/*
+ *
+ * Read FactorySet information from EEPROM into global structure.
+ * (C) Copyright 2013 Siemens Schweiz AG
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#if !defined(CONFIG_SPL_BUILD)
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/unaligned.h>
+#include <net.h>
+#include <usbdescriptors.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;
+
+ for (i = 0; fact_get_char(i) != end; i = nxt) {
+ nxt = i + 1;
+ if (fact_get_char(i) == '>') {
+ int pos;
+ int endpos;
+ int z;
+
+ 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) == '<') ||
+ (fact_get_char(z) == '>')) {
+ endpos = z;
+ nxt = endpos;
+ c = 0;
+ break;
+ }
+ }
+ }
+ if (c == 0) {
+ /* end found -> call get_factory_val */
+ eeprom_buf[endpos] = end;
+ ret = get_factory_val(&eeprom_buf[pos],
+ size - pos, name, buf, len);
+ /* fix buffer */
+ eeprom_buf[endpos] = '<';
+ 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 defined(CONFIG_DFU_FUNCTION)
+ factory_dat.usb_vendor_id = CONFIG_G_DNL_VENDOR_NUM;
+ factory_dat.usb_product_id = CONFIG_G_DNL_PRODUCT_NUM;
+#endif
+ if (i2c_probe(i2c_addr))
+ goto err;
+
+ if (i2c_read(i2c_addr, EEPROM_FATORYSET_OFFSET, 2, hdr, sizeof(hdr)))
+ goto err;
+
+ 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 (i2c_read(i2c_addr, (OFF_PG + i) * EEPR_PG_SZ, 2,
+ eeprom_buf + (i * EEPR_PG_SZ), EEPR_PG_SZ))
+ goto err;
+
+ if (size % EEPR_PG_SZ)
+ if (i2c_read(i2c_addr, (OFF_PG + pages) * EEPR_PG_SZ, 2,
+ eeprom_buf + (pages * EEPR_PG_SZ),
+ (size % EEPR_PG_SZ)))
+ goto err;
+
+ /* 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 defined(CONFIG_DFU_FUNCTION)
+ /* 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 (0 <= get_factory_record_val(cp, size, (uchar *)"DEV",
+ (uchar *)"id", buf,
+ MAX_STRING_LENGTH)) {
+ if (strncmp((const char *)buf, "PXM50", 5) == 0)
+ factory_dat.pxm50 = 1;
+ else
+ factory_dat.pxm50 = 0;
+ }
+ debug("PXM50: %d\n", factory_dat.pxm50);
+#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
+ return 0;
+
+err:
+ printf("Could not read the EEPROM; something fundamentally wrong on the I2C bus.\n");
+ return 1;
+}
+
+static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
+static int factoryset_mac_setenv(void)
+{
+ uint8_t mac_addr[6];
+
+ debug("FactorySet: Set mac address\n");
+ if (is_valid_ether_addr(factory_dat.mac)) {
+ memcpy(mac_addr, factory_dat.mac, 6);
+ } else {
+ uint32_t mac_hi, mac_lo;
+
+ debug("Warning: FactorySet: <ethaddr> not set. Fallback to E-fuse\n");
+ mac_lo = readl(&cdev->macid0l);
+ mac_hi = readl(&cdev->macid0h);
+
+ mac_addr[0] = mac_hi & 0xFF;
+ mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+ mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+ mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+ mac_addr[4] = mac_lo & 0xFF;
+ mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+ if (!is_valid_ether_addr(mac_addr)) {
+ printf("Warning: ethaddr not set by FactorySet or E-fuse. Set <ethaddr> variable to overcome this.\n");
+ return -1;
+ }
+ }
+
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ return 0;
+}
+
+int factoryset_setenv(void)
+{
+ int ret = 0;
+
+ if (factoryset_mac_setenv() < 0)
+ ret = -1;
+
+ return ret;
+}
+
+int g_dnl_bind_fixup(struct usb_device_descriptor *dev)
+{
+ put_unaligned(factory_dat.usb_vendor_id, &dev->idVendor);
+ put_unaligned(factory_dat.usb_product_id, &dev->idProduct);
+ return 0;
+}
+#endif /* defined(CONFIG_SPL_BUILD) */
generated by cgit v1.1 at 2024-10-31 19:20:45 +0000