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https://github.com/AsahiLinux/u-boot
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bba6cc7018
Add support for Data Modul i.MX8M Mini eDM SBC board. This is an evaluation board for various custom display units. Currently supported are serial console, ethernet, eMMC, SD, SPI NOR, USB host and USB OTG. Reviewed-by: Fabio Estevam <festevam@denx.de> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
37 lines
720 B
C
37 lines
720 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2022 Marek Vasut <marex@denx.de>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm-generic/gpio.h>
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#include "lpddr4_timing.h"
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DECLARE_GLOBAL_DATA_PTR;
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u8 dmo_get_memcfg(void)
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{
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struct gpio_desc gpio[4];
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u8 memcfg = 0;
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ofnode node;
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int i, ret;
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node = ofnode_path("/config");
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if (!ofnode_valid(node)) {
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printf("%s: no /config node?\n", __func__);
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return BIT(2) | BIT(0);
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}
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ret = gpio_request_list_by_name_nodev(node,
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"dmo,ram-coding-gpios",
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gpio, ARRAY_SIZE(gpio),
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GPIOD_IS_IN);
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for (i = 0; i < ret; i++)
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memcfg |= !!dm_gpio_get_value(&(gpio[i])) << i;
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gpio_free_list_nodev(gpio, ret);
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return memcfg;
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}
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