186e5e429SRamon Fried // SPDX-License-Identifier: GPL-2.0+
286e5e429SRamon Fried /*
386e5e429SRamon Fried * Miscellaneous Snapdragon functionality
486e5e429SRamon Fried *
586e5e429SRamon Fried * (C) Copyright 2018 Ramon Fried <ramon.fried@gmail.com>
686e5e429SRamon Fried *
786e5e429SRamon Fried */
886e5e429SRamon Fried
986e5e429SRamon Fried #include <common.h>
1086e5e429SRamon Fried #include <mmc.h>
1186e5e429SRamon Fried #include <asm/arch/misc.h>
1286e5e429SRamon Fried
1386e5e429SRamon Fried /* UNSTUFF_BITS macro taken from Linux Kernel: drivers/mmc/core/sd.c */
1486e5e429SRamon Fried #define UNSTUFF_BITS(resp, start, size) \
1586e5e429SRamon Fried ({ \
1686e5e429SRamon Fried const int __size = size; \
1786e5e429SRamon Fried const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
1886e5e429SRamon Fried const int __off = 3 - ((start) / 32); \
1986e5e429SRamon Fried const int __shft = (start) & 31; \
2086e5e429SRamon Fried u32 __res; \
2186e5e429SRamon Fried \
2286e5e429SRamon Fried __res = resp[__off] >> __shft; \
2386e5e429SRamon Fried if (__size + __shft > 32) \
2486e5e429SRamon Fried __res |= resp[__off - 1] << ((32 - __shft) % 32); \
2586e5e429SRamon Fried __res & __mask; \
2686e5e429SRamon Fried })
2786e5e429SRamon Fried
msm_board_serial(void)2886e5e429SRamon Fried u32 msm_board_serial(void)
2986e5e429SRamon Fried {
3086e5e429SRamon Fried struct mmc *mmc_dev;
3186e5e429SRamon Fried
3286e5e429SRamon Fried mmc_dev = find_mmc_device(0);
3386e5e429SRamon Fried if (!mmc_dev)
3486e5e429SRamon Fried return 0;
3586e5e429SRamon Fried
3686e5e429SRamon Fried return UNSTUFF_BITS(mmc_dev->cid, 16, 32);
3786e5e429SRamon Fried }
38*e0b04a15SRamon Fried
msm_generate_mac_addr(u8 * mac)39*e0b04a15SRamon Fried void msm_generate_mac_addr(u8 *mac)
40*e0b04a15SRamon Fried {
41*e0b04a15SRamon Fried int i;
42*e0b04a15SRamon Fried char sn[9];
43*e0b04a15SRamon Fried
44*e0b04a15SRamon Fried snprintf(sn, 8, "%08x", msm_board_serial());
45*e0b04a15SRamon Fried
46*e0b04a15SRamon Fried /* fill in the mac with serialno, use locally adminstrated pool */
47*e0b04a15SRamon Fried mac[0] = 0x02;
48*e0b04a15SRamon Fried mac[1] = 00;
49*e0b04a15SRamon Fried for (i = 3; i >= 0; i--) {
50*e0b04a15SRamon Fried mac[i + 2] = simple_strtoul(&sn[2 * i], NULL, 16);
51*e0b04a15SRamon Fried sn[2 * i] = 0;
52*e0b04a15SRamon Fried }
53*e0b04a15SRamon Fried }
54