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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Miscellaneous Snapdragon functionality
- *
- * (C) Copyright 2018 Ramon Fried <ramon.fried@gmail.com>
- *
- */
- #include <common.h>
- #include <mmc.h>
- #include <asm/arch/misc.h>
- /* UNSTUFF_BITS macro taken from Linux Kernel: drivers/mmc/core/sd.c */
- #define UNSTUFF_BITS(resp, start, size) \
- ({ \
- const int __size = size; \
- const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
- const int __off = 3 - ((start) / 32); \
- const int __shft = (start) & 31; \
- u32 __res; \
- \
- __res = resp[__off] >> __shft; \
- if (__size + __shft > 32) \
- __res |= resp[__off - 1] << ((32 - __shft) % 32); \
- __res & __mask; \
- })
- u32 msm_board_serial(void)
- {
- struct mmc *mmc_dev;
- mmc_dev = find_mmc_device(0);
- if (!mmc_dev)
- return 0;
- return UNSTUFF_BITS(mmc_dev->cid, 16, 32);
- }
- void msm_generate_mac_addr(u8 *mac)
- {
- int i;
- char sn[9];
- snprintf(sn, 9, "%08x", msm_board_serial());
- /* fill in the mac with serialno, use locally adminstrated pool */
- mac[0] = 0x02;
- mac[1] = 00;
- for (i = 3; i >= 0; i--) {
- mac[i + 2] = simple_strtoul(&sn[2 * i], NULL, 16);
- sn[2 * i] = 0;
- }
- }
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