This was a temporary workaround for the Tegra210 Jetson Nano board. It is
not used by any device anymore, so let's remove it.
Signed-off-by: Svyatoslav Ryhel <clamo...@gmail.com>
---
arch/arm/mach-tegra/board2.c | 25 -------------------------
1 file changed, 25 deletions(-)
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 68534dcbb22..396851c5bd8 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -227,31 +227,6 @@ int board_early_init_f(void)
arch_timer_init();
#endif
-#if defined(CONFIG_DISABLE_SDMMC1_EARLY)
- /*
- * Turn off (reset/disable) SDMMC1 on Nano here, before GPIO INIT.
- * We do this because earlier bootloaders have enabled power to
- * SDMMC1 on Nano, and toggling power-gpio (PZ3) in pinmux_init()
- * results in power being back-driven into the SD-card and SDMMC1
- * HW, which is 'bad' as per the HW team.
- *
- * From the HW team: "LDO2 from the PMIC has already been set to 3.3v in
- * nvtboot/CBoot on Nano (for SD-card boot). So when U-Boot's GPIO_INIT
- * table sets PZ3 to OUT0 as per the pinmux spreadsheet, it turns off
- * the loadswitch. When PZ3 is 0 and not driving, essentially the SDCard
- * voltage turns off. Since the SDCard voltage is no longer there, the
- * SDMMC CLK/DAT lines are backdriving into what essentially is a
- * powered-off SDCard, that's why the voltage drops from 3.3V to ~1.6V"
- *
- * Note that this can probably be removed when we change over to storing
- * all BL components on QSPI on Nano, and U-Boot then becomes the first
- * one to turn on SDMMC1 power. Another fix would be to have CBoot
- * disable power/gate SDMMC1 off before handing off to U-Boot/kernel.
- */
- reset_set_enable(PERIPH_ID_SDMMC1, 1);
- clock_set_enable(PERIPH_ID_SDMMC1, 0);
-#endif /* CONFIG_DISABLE_SDMMC1_EARLY */
-
pinmux_init();
board_init_uart_f();
--
2.43.0
