2020-09-21 07:34:13 +00:00
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// 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 <env_internal.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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2020-12-18 14:26:45 +00:00
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#include <asm/arch/boot.h>
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2020-09-21 07:34:13 +00:00
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#include <asm/arch/eth.h>
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2020-12-17 07:26:42 +00:00
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#include <asm/arch/sm.h>
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2020-10-31 03:38:53 +00:00
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#include <asm/global_data.h>
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2020-09-21 07:34:15 +00:00
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#include <i2c.h>
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#include "khadas-mcu.h"
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2020-12-18 14:26:45 +00:00
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int mmc_get_env_dev(void)
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{
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2021-05-27 07:35:28 +00:00
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switch (meson_get_boot_device()) {
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case BOOT_DEVICE_EMMC:
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2020-12-18 14:26:45 +00:00
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return 2;
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2021-05-27 07:35:28 +00:00
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case BOOT_DEVICE_SD:
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return 1;
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default:
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/* boot device is not EMMC|SD */
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return -1;
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}
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2020-12-18 14:26:45 +00:00
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}
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2020-09-21 07:34:15 +00:00
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/*
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* The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential
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* lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
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* an USB3.0 Type A connector and a M.2 Key M slot.
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* The PHY driving these differential lines is shared between
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* the USB3.0 controller and the PCIe Controller, thus only
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* a single controller can use it.
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*/
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int meson_ft_board_setup(void *blob, struct bd_info *bd)
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{
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struct udevice *bus, *dev;
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int node, i2c_node, ret;
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unsigned int i2c_addr;
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u32 *val;
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/* Find I2C device */
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node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "khadas,mcu");
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if (node < 0) {
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printf("vim3: cannot find khadas,mcu node\n");
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return 0;
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}
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/* Get addr */
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val = (u32 *)fdt_getprop(gd->fdt_blob, node, "reg", NULL);
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if (!val) {
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printf("vim3: cannot find khadas,mcu node i2c addr\n");
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return 0;
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}
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i2c_addr = fdt32_to_cpu(*val);
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/* Get i2c device */
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i2c_node = fdt_parent_offset(gd->fdt_blob, node);
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if (node < 0) {
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printf("vim3: cannot find khadas,mcu i2c node\n");
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return 0;
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}
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ret = uclass_get_device_by_of_offset(UCLASS_I2C, i2c_node, &bus);
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if (ret < 0) {
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printf("vim3: cannot find i2c bus (%d)\n", ret);
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return 0;
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}
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ret = i2c_get_chip(bus, i2c_addr, 1, &dev);
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if (ret < 0) {
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printf("vim3: cannot find i2c chip (%d)\n", ret);
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return 0;
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}
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/* Read USB_PCIE_SWITCH_REG */
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ret = dm_i2c_reg_read(dev, KHADAS_MCU_USB_PCIE_SWITCH_REG);
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if (ret < 0) {
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printf("vim3: failed to read i2c reg (%d)\n", ret);
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return 0;
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}
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debug("MCU_USB_PCIE_SWITCH_REG: %d\n", ret);
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/*
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* If in PCIe mode, alter DT
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* 0:Enable USB3.0,Disable PCIE, 1:Disable USB3.0, Enable PCIE
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*/
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if (ret > 0) {
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static char data[32] __aligned(4);
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const void *ptmp;
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int len;
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/* Find USB node */
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node = fdt_node_offset_by_compatible(blob, -1, "amlogic,meson-g12a-usb-ctrl");
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if (node < 0) {
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printf("vim3: cannot find amlogic,meson-g12a-usb-ctrl node\n");
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return 0;
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}
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/* Update PHY names (mandatory to disable USB3.0) */
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2021-07-13 06:48:47 +00:00
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len = strlcpy(data, "usb2-phy0", 32);
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len += strlcpy(&data[len], "usb2-phy1", 32 - len);
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2020-09-21 07:34:15 +00:00
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ret = fdt_setprop(blob, node, "phy-names", data, len);
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if (ret < 0) {
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printf("vim3: failed to update usb phy names property (%d)\n", ret);
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return 0;
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}
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/* Update PHY list, by keeping the 2 first entries (optional) */
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ptmp = fdt_getprop(blob, node, "phys", &len);
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if (ptmp) {
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memcpy(data, ptmp, min_t(unsigned int, 2 * sizeof(u32), len));
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ret = fdt_setprop(blob, node, "phys", data,
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min_t(unsigned int, 2 * sizeof(u32), len));
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if (ret < 0)
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printf("vim3: failed to update usb phys property (%d)\n", ret);
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} else
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printf("vim3: cannot find usb node phys property\n");
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/* Find PCIe node */
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node = fdt_node_offset_by_compatible(blob, -1, "amlogic,g12a-pcie");
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if (node < 0) {
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printf("vim3: cannot find amlogic,g12a-pcie node\n");
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return 0;
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}
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/* Enable PCIe */
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len = strlcpy(data, "okay", 32);
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ret = fdt_setprop(blob, node, "status", data, len);
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if (ret < 0) {
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printf("vim3: failed to enable pcie node (%d)\n", ret);
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return 0;
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}
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printf("vim3: successfully enabled PCIe\n");
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}
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return 0;
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}
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2020-09-21 07:34:13 +00:00
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2020-12-17 07:26:42 +00:00
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#define EFUSE_MAC_OFFSET 0
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2021-01-12 11:42:12 +00:00
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#define EFUSE_MAC_SIZE 12
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#define MAC_ADDR_LEN 6
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2020-12-17 07:26:42 +00:00
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2020-09-21 07:34:13 +00:00
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int misc_init_r(void)
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{
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2021-01-12 11:42:12 +00:00
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u8 mac_addr[MAC_ADDR_LEN];
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char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3];
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2020-12-17 07:26:42 +00:00
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ssize_t len;
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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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2021-01-12 11:42:12 +00:00
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efuse_mac_addr, EFUSE_MAC_SIZE);
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2020-12-17 07:26:42 +00:00
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if (len != EFUSE_MAC_SIZE)
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return 0;
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2021-01-12 11:42:12 +00:00
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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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2021-07-24 15:03:29 +00:00
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mac_addr[i] = hextoul(tmp, NULL);
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2021-01-12 11:42:12 +00:00
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}
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2020-12-17 07:26:42 +00:00
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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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2021-01-12 11:42:12 +00:00
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eth_env_get_enetaddr("ethaddr", mac_addr);
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2020-12-17 07:26:42 +00:00
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}
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2020-09-21 07:34:13 +00:00
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return 0;
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}
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