1 files changed, 84 insertions, 0 deletions
diff --git a/board/asus/grouper/board-info.c b/board/asus/grouper/board-info.c
new file mode 100644
index 00000000000..4892accc523
--- /dev/null
+++ b/board/asus/grouper/board-info.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  (C) Copyright 2024
+ *  Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+#include <env.h>
+#include <spl_gpio.h>
+
+#include <asm/gpio.h>
+#include <asm/arch/pinmux.h>
+
+/*
+ *	PMIC_ID is GMI_CS2_N_PK3
+ *	MODEM_ID is GMI_CS4_N_PK2
+ *
+ *		Extended Project ID
+ *	====================================
+ *	MODEM_ID  PMIC_ID	project name
+ *	0	  0		grouper-E1565
+ *	0	  1		grouper-PM269
+ *	1	  0		tilapia
+ */
+enum project_rev {
+	E1565, PM269, TILAPIA, COUNT,
+};
+
+static const char * const project_id_to_fdt[] = {
+	[E1565] = "tegra30-asus-nexus7-grouper-E1565",
+	[PM269] = "tegra30-asus-nexus7-grouper-PM269",
+	[TILAPIA] = "tegra30-asus-nexus7-tilapia-E1565",
+};
+
+static int id_gpio_get_value(u32 pingrp, u32 pin)
+{
+	/* Configure pinmux */
+	pinmux_set_func(pingrp, PMUX_FUNC_GMI);
+	pinmux_set_pullupdown(pingrp, PMUX_PULL_DOWN);
+	pinmux_tristate_enable(pingrp);
+	pinmux_set_io(pingrp, PMUX_PIN_INPUT);
+
+	/*
+	 * Since this function may be called
+	 * during DM reload we should use SPL
+	 * GPIO functions which do not depend
+	 * on DM.
+	 */
+	spl_gpio_input(NULL, pin);
+	return spl_gpio_get_value(NULL, pin);
+}
+
+static int get_project_id(void)
+{
+	u32 pmic_id, modem_id, proj_id;
+
+	modem_id = id_gpio_get_value(PMUX_PINGRP_GMI_CS4_N_PK2,
+				     TEGRA_GPIO(K, 2));
+	pmic_id = id_gpio_get_value(PMUX_PINGRP_GMI_CS2_N_PK3,
+				    TEGRA_GPIO(K, 3));
+
+	proj_id = (modem_id << 1 | pmic_id) & COUNT;
+
+	log_debug("[GROUPER]: project id %d (%s)\n", proj_id,
+		  project_id_to_fdt[proj_id]);
+
+	return proj_id;
+}
+
+int board_fit_config_name_match(const char *name)
+{
+	if (!strcmp(name, project_id_to_fdt[get_project_id()]))
+		return 0;
+
+	return -1;
+}
+
+void nvidia_board_late_init(void)
+{
+	char dt_path[64] = { 0 };
+
+	snprintf(dt_path, sizeof(dt_path), "%s.dtb",
+		 project_id_to_fdt[get_project_id()]);
+	env_set("fdtfile", dt_path);
+}