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a52099b4a2
The Xunlong Orange Pi 3B is a single-board computer based on the Rockchip RK3566 SoC. The two hw revisions use different io-voltage for Ethernet PHY and can be identified using GPIO4_C4: - v1.1.1: x (internal pull-down) - v2.1: PHY_RESET (external pull-up) Implement rk_board_late_init() to set correct fdtfile env var and board_fit_config_name_match() to load correct FIT config based on what board is detected at runtime so a single board target can be used for both hw revisions. Minimal DTs that includ DT from dts/upstream is added to support booting from both hw revision and only set Ethernet PHY io-voltage when the hw revision is detected at runtime. A side-affect of this is that defconfig show OF_UPSTREAM=n, however dts/upstream DTs is used for this board. Features tested on Orange Pi 3B 4GB (v1.1.1 and v2.1): - SD-card boot - eMMC boot - SPI Flash boot - Ethernet - PCIe/NVMe - USB host Signed-off-by: Ricardo Pardini <ricardo@pardini.net> Co-developed-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
77 lines
1.4 KiB
C
77 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <env.h>
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#include <asm/gpio.h>
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struct board_model {
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int value;
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const char *fdtfile;
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const char *config;
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};
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static const struct board_model board_models[] = {
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{ 0, "rockchip/rk3566-orangepi-3b-v1.1.dtb", "rk3566-orangepi-3b-v1.1.dtb" },
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{ 1, "rockchip/rk3566-orangepi-3b-v2.1.dtb", "rk3566-orangepi-3b-v2.1.dtb" },
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};
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static int get_board_value(void)
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{
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struct gpio_desc desc;
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int ret;
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/*
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* GPIO4_C4 (E20):
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* v1.1.1: x (internal pull-down)
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* v2.1: PHY_RESET (external pull-up)
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*/
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ret = dm_gpio_lookup_name("E20", &desc);
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if (ret)
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return ret;
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ret = dm_gpio_request(&desc, "phy_reset");
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if (ret && ret != -EBUSY)
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return ret;
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dm_gpio_set_dir_flags(&desc, GPIOD_IS_IN);
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ret = dm_gpio_get_value(&desc);
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dm_gpio_free(desc.dev, &desc);
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return ret;
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}
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static const struct board_model *get_board_model(void)
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{
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int i, val;
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val = get_board_value();
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if (val < 0)
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return NULL;
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for (i = 0; i < ARRAY_SIZE(board_models); i++) {
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if (val == board_models[i].value)
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return &board_models[i];
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}
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return NULL;
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}
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int rk_board_late_init(void)
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{
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const struct board_model *model = get_board_model();
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if (model)
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env_set("fdtfile", model->fdtfile);
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return 0;
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}
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int board_fit_config_name_match(const char *name)
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{
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const struct board_model *model = get_board_model();
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if (model && (!strcmp(name, model->fdtfile) ||
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!strcmp(name, model->config)))
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return 0;
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return -EINVAL;
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}
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