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https://github.com/u-boot/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
141 lines
3.3 KiB
C
141 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <adc.h>
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#include <env.h>
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#include <init.h>
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#include <net.h>
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#include <asm/io.h>
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#include <asm/arch/boot.h>
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#include <asm/arch/sm.h>
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#include <asm/arch/eth.h>
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#include <asm/arch/boot.h>
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#define EFUSE_MAC_OFFSET 20
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#define EFUSE_MAC_SIZE 12
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#define MAC_ADDR_LEN 6
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#define ODROID_HW_VS_ADC_CHANNEL 1
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#define MESON_SOC_ID_G12B 0x29
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#define MESON_SOC_ID_SM1 0x2b
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int mmc_get_env_dev(void)
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{
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if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
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return 1;
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return 0;
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}
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/* Variant detection is based on the ADC RAW values for the channel #1 */
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static struct meson_odroid_boards {
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unsigned int soc_id;
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unsigned int adc_min;
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unsigned int adc_max;
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char *variant;
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} boards[] = {
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/* OdroidN2 rev 2018,7,23 */
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{ MESON_SOC_ID_G12B, 80 * 4, 90 * 4, "n2" },
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/* OdroidN2 rev 2018,12,6 */
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{ MESON_SOC_ID_G12B, 160 * 4, 170 * 4, "n2" },
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/* OdroidN2 rev 2019,1,17 */
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{ MESON_SOC_ID_G12B, 245 * 4, 255 * 4, "n2" },
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/* OdroidN2 rev 2019,2,7 */
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{ MESON_SOC_ID_G12B, 330 * 4, 350 * 4, "n2" },
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/* OdroidN2plus rev 2019,11,20 */
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{ MESON_SOC_ID_G12B, 410 * 4, 430 * 4, "n2-plus" },
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/* OdroidC4 rev 2020,01,29 */
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{ MESON_SOC_ID_SM1, 80 * 4, 100 * 4, "c4" },
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/* OdroidHC4 rev 2019,12,10 */
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{ MESON_SOC_ID_SM1, 300 * 4, 320 * 4, "hc4" },
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/* OdroidC4 rev 2019,11,29 */
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{ MESON_SOC_ID_SM1, 335 * 4, 345 * 4, "c4" },
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/* OdroidHC4 rev 2020,8,7 */
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{ MESON_SOC_ID_SM1, 590 * 4, 610 * 4, "hc4" },
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};
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static void odroid_set_fdtfile(char *soc, char *variant)
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{
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char s[128];
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snprintf(s, sizeof(s), "amlogic/meson-%s-odroid-%s.dtb", soc, variant);
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env_set("fdtfile", s);
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}
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static int odroid_detect_variant(void)
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{
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char *variant = "", *soc = "";
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unsigned int adcval = 0;
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int ret, i, soc_id = 0;
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if (of_machine_is_compatible("amlogic,sm1")) {
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soc_id = MESON_SOC_ID_SM1;
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soc = "sm1";
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} else if (of_machine_is_compatible("amlogic,g12b")) {
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soc_id = MESON_SOC_ID_G12B;
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soc = "g12b";
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} else {
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return -1;
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}
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ret = adc_channel_single_shot("adc@9000", ODROID_HW_VS_ADC_CHANNEL,
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&adcval);
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if (ret)
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return ret;
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for (i = 0 ; i < ARRAY_SIZE(boards) ; ++i) {
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if (soc_id == boards[i].soc_id &&
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adcval >= boards[i].adc_min &&
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adcval < boards[i].adc_max) {
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variant = boards[i].variant;
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break;
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}
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}
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printf("Board variant: %s\n", variant);
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env_set("variant", variant);
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odroid_set_fdtfile(soc, variant);
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return 0;
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}
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int misc_init_r(void)
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{
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u8 mac_addr[MAC_ADDR_LEN + 1];
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char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3];
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ssize_t len;
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if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG) &&
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meson_get_soc_rev(tmp, sizeof(tmp)) > 0)
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env_set("soc_rev", tmp);
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if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
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len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
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efuse_mac_addr, EFUSE_MAC_SIZE);
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if (len != EFUSE_MAC_SIZE)
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return 0;
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/* MAC is stored in ASCII format, 1bytes = 2characters */
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for (int i = 0; i < 6; i++) {
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tmp[0] = efuse_mac_addr[i * 2];
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tmp[1] = efuse_mac_addr[i * 2 + 1];
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tmp[2] = '\0';
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mac_addr[i] = hextoul(tmp, NULL);
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}
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mac_addr[MAC_ADDR_LEN] = '\0';
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if (is_valid_ethaddr(mac_addr))
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eth_env_set_enetaddr("ethaddr", mac_addr);
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else
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meson_generate_serial_ethaddr();
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}
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odroid_detect_variant();
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return 0;
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}
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