mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-14 07:06:19 +09:00
a2777ecb9d
Add Toradex factory configuration block handling. The config block is a data structure which gets stored to flash during production testing. The structure holds such information as board resp. hardware revision, product ID and serial number which is used as the NIC part of the Ethernet MAC address as well. The config block will be read upon boot by the show_board_info() function, displayed as part of the board information and passed to Linux via device tree or ATAGs. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
169 lines
3.3 KiB
C
169 lines
3.3 KiB
C
/*
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* Copyright (c) 2016 Toradex, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <g_dnl.h>
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#include <libfdt.h>
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#include "tdx-cfg-block.h"
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#include "tdx-common.h"
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#ifdef CONFIG_TDX_CFG_BLOCK
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static char tdx_serial_str[9];
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static char tdx_board_rev_str[6];
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#ifdef CONFIG_REVISION_TAG
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u32 get_board_rev(void)
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{
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/* Check validity */
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if (!tdx_hw_tag.ver_major)
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return 0;
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return ((tdx_hw_tag.ver_major & 0xff) << 8) |
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((tdx_hw_tag.ver_minor & 0xf) << 4) |
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((tdx_hw_tag.ver_assembly & 0xf) + 0xa);
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}
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#endif /* CONFIG_TDX_CFG_BLOCK */
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#ifdef CONFIG_SERIAL_TAG
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void get_board_serial(struct tag_serialnr *serialnr)
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{
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int array[8];
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unsigned int serial = tdx_serial;
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int i;
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serialnr->low = 0;
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serialnr->high = 0;
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/* Check validity */
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if (serial) {
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/*
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* Convert to Linux serial number format (hexadecimal coded
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* decimal)
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*/
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i = 7;
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while (serial) {
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array[i--] = serial % 10;
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serial /= 10;
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}
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while (i >= 0)
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array[i--] = 0;
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serial = array[0];
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for (i = 1; i < 8; i++) {
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serial *= 16;
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serial += array[i];
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}
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serialnr->low = serial;
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}
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}
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#endif /* CONFIG_SERIAL_TAG */
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int show_board_info(void)
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{
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unsigned char ethaddr[6];
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if (read_tdx_cfg_block()) {
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printf("Missing Toradex config block\n");
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checkboard();
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return 0;
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}
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/* board serial-number */
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sprintf(tdx_serial_str, "%08u", tdx_serial);
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sprintf(tdx_board_rev_str, "V%1d.%1d%c",
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tdx_hw_tag.ver_major,
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tdx_hw_tag.ver_minor,
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(char)tdx_hw_tag.ver_assembly + 'A');
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setenv("serial#", tdx_serial_str);
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/*
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* Check if environment contains a valid MAC address,
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* set the one from config block if not
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*/
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if (!eth_getenv_enetaddr("ethaddr", ethaddr))
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eth_setenv_enetaddr("ethaddr", (u8 *)&tdx_eth_addr);
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#ifdef CONFIG_TDX_CFG_BLOCK_2ND_ETHADDR
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if (!eth_getenv_enetaddr("eth1addr", ethaddr)) {
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/*
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* Secondary MAC address is allocated from block
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* 0x100000 higher then the first MAC address
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*/
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memcpy(ethaddr, &tdx_eth_addr, 6);
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ethaddr[3] += 0x10;
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eth_setenv_enetaddr("eth1addr", ethaddr);
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}
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#endif
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printf("Model: Toradex %s %s, Serial# %s\n",
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toradex_modules[tdx_hw_tag.prodid],
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tdx_board_rev_str,
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tdx_serial_str);
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return 0;
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}
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#ifdef CONFIG_USBDOWNLOAD_GADGET
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int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
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{
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unsigned short usb_pid;
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usb_pid = TORADEX_USB_PRODUCT_NUM_OFFSET + tdx_hw_tag.prodid;
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put_unaligned(usb_pid, &dev->idProduct);
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return 0;
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}
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#endif /* CONFIG_USBDOWNLOAD_GADGET */
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#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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if (tdx_serial) {
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fdt_setprop(blob, 0, "serial-number", tdx_serial_str,
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strlen(tdx_serial_str) + 1);
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}
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if (tdx_hw_tag.ver_major) {
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char prod_id[5];
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sprintf(prod_id, "%04u", tdx_hw_tag.prodid);
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fdt_setprop(blob, 0, "toradex,product-id", prod_id, 5);
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fdt_setprop(blob, 0, "toradex,board-rev", tdx_board_rev_str,
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strlen(tdx_board_rev_str) + 1);
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}
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return 0;
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}
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#endif
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#else /* CONFIG_TDX_CFG_BLOCK */
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#ifdef CONFIG_REVISION_TAG
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u32 get_board_rev(void)
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{
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return 0;
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}
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#endif /* CONFIG_REVISION_TAG */
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#ifdef CONFIG_SERIAL_TAG
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u32 get_board_serial(void)
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{
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return 0;
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}
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#endif /* CONFIG_SERIAL_TAG */
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#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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return 0;
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}
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#endif
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#endif /* CONFIG_TDX_CFG_BLOCK */
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