// SPDX-License-Identifier: GPL-2.0-or-later // SPDX-FileCopyrightText: 2010 Juergen Beisert <kernel@pengutronix.de>, Pengutronix #include <common.h> #include <init.h> #include <gpio.h> #include <environment.h> #include <errno.h> #include <asm/armlinux.h> #include <asm/barebox-arm.h> #include <io.h> #include <generated/mach-types.h> #include <mach/imx-regs.h> #include <mach/devices.h> #include <mach/iomux.h> #include <asm/mmu.h> /* setup the CPU card internal signals */ static const uint32_t tx28_pad_setup[] = { /* NAND interface */ GPMI_D0 | VE_3_3V | PULLUP(1), GPMI_D1 | VE_3_3V | PULLUP(1), GPMI_D2 | VE_3_3V | PULLUP(1), GPMI_D3 | VE_3_3V | PULLUP(1), GPMI_D4 | VE_3_3V | PULLUP(1), GPMI_D5 | VE_3_3V | PULLUP(1), GPMI_D6 | VE_3_3V | PULLUP(1), GPMI_D7 | VE_3_3V | PULLUP(1), GPMI_READY0 | VE_3_3V | PULLUP(0), /* external PU */ GPMI_CE0N | VE_3_3V | PULLUP(1), GPMI_RDN | VE_3_3V | PULLUP(1), GPMI_WRN | VE_3_3V | BITKEEPER(1), GPMI_ALE | VE_3_3V | PULLUP(1), GPMI_CLE | VE_3_3V | PULLUP(1), GPMI_RESETN | VE_3_3V | PULLUP(0), /* external PU */ /* Network interface */ /* * Note: To setup the external phy in a manner the baseboard * supports, its configuration is divided into a small part here in * the CPU card setup and the remaining configuration in the baseboard * file. * Here: Switch on the power supply to the external phy, but keep its * reset line low. */ /* send a "good morning" to the ext. phy 0 = reset */ ENET0_RX_CLK_GPIO | VE_3_3V | PULLUP(0) | GPIO_OUT | GPIO_VALUE(0), /* phy power control 1 = on */ PWM4_GPIO | VE_3_3V | GPIO_OUT | PULLUP(0) | GPIO_VALUE(1), ENET_CLK | VE_3_3V | BITKEEPER(0), ENET0_MDC | VE_3_3V | PULLUP(0), ENET0_MDIO | VE_3_3V | PULLUP(0), ENET0_TXD0 | VE_3_3V | PULLUP(0), ENET0_TXD1 | VE_3_3V | PULLUP(0), ENET0_TX_EN | VE_3_3V | PULLUP(0), ENET0_TX_CLK | VE_3_3V | BITKEEPER(0), }; extern void base_board_init(void); static int tx28_devices_init(void) { int i; if (barebox_arm_machine() != MACH_TYPE_TX28) return 0; /* initizalize gpios */ for (i = 0; i < ARRAY_SIZE(tx28_pad_setup); i++) imx_gpio_mode(tx28_pad_setup[i]); armlinux_set_architecture(MACH_TYPE_TX28); base_board_init(); imx28_add_nand(); return 0; } device_initcall(tx28_devices_init);