mirror of
https://github.com/smaeul/u-boot.git
synced 2025-09-14 22:16:03 +01:00
df48a95588
PCBID1 seems to be high not only on TF600T, but on TF700T as well, that caused boot failure for TF700T. Switching PCBID1 to PCBID7 should fix this issue. Co-developed-by: Ion Agorria <ion@agorria.com> Signed-off-by: Ion Agorria <ion@agorria.com> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
// 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>
|
|
|
|
/*
|
|
* PCB_ID[3] is kb_col7_pq7
|
|
* PCB_ID[4] is kb_row2_pr2
|
|
* PCB_ID[5] is kb_col5_pq5
|
|
* PCB_ID[7] is gmi_cs1_n_pj2
|
|
*
|
|
* Project ID
|
|
* =====================================================
|
|
* PCB_ID[7] PCB_ID[5] PCB_ID[4] PCB_ID[3] Project
|
|
* 0 0 0 0 TF201
|
|
* 0 0 0 1 P1801
|
|
* 0 0 1 0 TF300T
|
|
* 0 0 1 1 TF300TG
|
|
* 0 1 0 0 TF700T
|
|
* 0 1 0 1 TF300TL
|
|
* 0 1 1 0 Extension
|
|
* 0 1 1 1 TF500T
|
|
* 1 0 0 0 TF502T/TF600T
|
|
* =====================================================
|
|
*/
|
|
enum project_rev {
|
|
TF201, P1801, TF300T, TF300TG, TF700T,
|
|
TF300TL, EXT, TF500T, TF600T
|
|
};
|
|
|
|
static const char * const project_id_to_fdt[] = {
|
|
[TF201] = "tegra30-asus-tf201",
|
|
[P1801] = "tegra30-asus-p1801-t",
|
|
[TF300T] = "tegra30-asus-tf300t",
|
|
[TF300TG] = "tegra30-asus-tf300tg",
|
|
[TF700T] = "tegra30-asus-tf700t",
|
|
[TF300TL] = "tegra30-asus-tf300tl",
|
|
[TF600T] = "tegra30-asus-tf600t",
|
|
};
|
|
|
|
static int id_gpio_get_value(u32 pingrp, u32 func, u32 pin)
|
|
{
|
|
/* Configure pinmux */
|
|
pinmux_set_func(pingrp, func);
|
|
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 pcb_id3, pcb_id4, pcb_id5, pcb_id7;
|
|
|
|
pcb_id3 = id_gpio_get_value(PMUX_PINGRP_KB_COL7_PQ7,
|
|
PMUX_FUNC_KBC, TEGRA_GPIO(Q, 7));
|
|
pcb_id4 = id_gpio_get_value(PMUX_PINGRP_KB_ROW2_PR2,
|
|
PMUX_FUNC_KBC, TEGRA_GPIO(R, 2));
|
|
pcb_id5 = id_gpio_get_value(PMUX_PINGRP_KB_COL5_PQ5,
|
|
PMUX_FUNC_KBC, TEGRA_GPIO(Q, 5));
|
|
pcb_id7 = id_gpio_get_value(PMUX_PINGRP_GMI_CS1_N_PJ2,
|
|
PMUX_FUNC_RSVD1, TEGRA_GPIO(J, 2));
|
|
|
|
/* Construct board ID */
|
|
int proj_id = pcb_id7 << 3 | pcb_id5 << 2 |
|
|
pcb_id4 << 1 | pcb_id3;
|
|
|
|
log_debug("[TRANSFORMER]: project id %d (%s)\n", proj_id,
|
|
project_id_to_fdt[proj_id]);
|
|
|
|
/* Mark tablet with SPI flash */
|
|
if (proj_id == TF600T)
|
|
env_set_hex("spiflash", true);
|
|
else
|
|
env_set_hex("spiflash", false);
|
|
|
|
return proj_id & 0xf;
|
|
}
|
|
|
|
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);
|
|
}
|