03268b2f9e
With this call the following attributes get set to the device-tree
and are then accessible from linux in /proc/device-tree/
serial-number: The serial number that is stored in config-block
toradex,board-rev: The version of the module (e.g. V1.1A)
toradex,product-id: The SKU number of the module running
Fixes: commit 14d5aeff77 ("board: toradex: Add Verdin iMX8M Mini support")
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
131 lines
2.6 KiB
C
131 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2020-2021 Toradex
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*/
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#include <common.h>
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#include <init.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <hang.h>
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#include <i2c.h>
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#include <micrel.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include "../common/tdx-cfg-block.h"
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DECLARE_GLOBAL_DATA_PTR;
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#define I2C_PMIC 0
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enum pcb_rev_t {
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PCB_VERSION_1_0,
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PCB_VERSION_1_1
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};
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#if IS_ENABLED(CONFIG_FEC_MXC)
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static int setup_fec(void)
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{
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struct iomuxc_gpr_base_regs *gpr =
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(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
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/* Use 125M anatop REF_CLK1 for ENET1, not from external */
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clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
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return 0;
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}
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#endif
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int board_init(void)
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{
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if (IS_ENABLED(CONFIG_FEC_MXC))
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setup_fec();
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return 0;
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}
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int board_mmc_get_env_dev(int devno)
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{
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return devno;
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}
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static enum pcb_rev_t get_pcb_revision(void)
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{
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struct udevice *bus;
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struct udevice *i2c_dev = NULL;
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int ret;
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u8 is_bd71837 = 0;
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ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_PMIC, &bus);
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if (!ret)
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ret = dm_i2c_probe(bus, 0x4b, 0, &i2c_dev);
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if (!ret)
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ret = dm_i2c_read(i2c_dev, 0x0, &is_bd71837, 1);
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/* BD71837_REV, High Nibble is major version, fix 1010 */
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is_bd71837 = !ret && ((is_bd71837 & 0xf0) == 0xa0);
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return is_bd71837 ? PCB_VERSION_1_0 : PCB_VERSION_1_1;
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}
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static void select_dt_from_module_version(void)
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{
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char variant[32];
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char *env_variant = env_get("variant");
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int is_wifi = 0;
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if (IS_ENABLED(CONFIG_TDX_CFG_BLOCK)) {
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/*
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* If we have a valid config block and it says we are a
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* module with Wi-Fi/Bluetooth make sure we use the -wifi
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* device tree.
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*/
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is_wifi = (tdx_hw_tag.prodid == VERDIN_IMX8MMQ_WIFI_BT_IT) ||
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(tdx_hw_tag.prodid == VERDIN_IMX8MMDL_WIFI_BT_IT) ||
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(tdx_hw_tag.prodid == VERDIN_IMX8MMQ_WIFI_BT_IT_NO_CAN);
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}
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switch (get_pcb_revision()) {
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case PCB_VERSION_1_0:
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printf("Detected a V1.0 module which is no longer supported in this BSP version\n");
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hang();
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default:
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if (is_wifi)
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strlcpy(&variant[0], "wifi", sizeof(variant));
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else
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strlcpy(&variant[0], "nonwifi", sizeof(variant));
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break;
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}
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if (strcmp(variant, env_variant)) {
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printf("Setting variant to %s\n", variant);
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env_set("variant", variant);
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}
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}
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int board_late_init(void)
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{
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select_dt_from_module_version();
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return 0;
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}
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int board_phys_sdram_size(phys_size_t *size)
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{
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if (!size)
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return -EINVAL;
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*size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
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return 0;
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}
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#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, struct bd_info *bd)
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{
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return ft_common_board_setup(blob, bd);
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}
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#endif
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