102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
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* Copyright (C) 2010 Juergen Beisert, Pengutronix <kernel@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <common.h>
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#include <init.h>
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#include <gpio.h>
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#include <environment.h>
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#include <errno.h>
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#include <asm/armlinux.h>
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#include <io.h>
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#include <generated/mach-types.h>
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#include <mach/imx-regs.h>
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#include <mach/devices.h>
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#include <mach/iomux.h>
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#include <asm/mmu.h>
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/* setup the CPU card internal signals */
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static const uint32_t tx28_pad_setup[] = {
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/* NAND interface */
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GPMI_D0 | VE_3_3V | PULLUP(1),
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GPMI_D1 | VE_3_3V | PULLUP(1),
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GPMI_D2 | VE_3_3V | PULLUP(1),
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GPMI_D3 | VE_3_3V | PULLUP(1),
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GPMI_D4 | VE_3_3V | PULLUP(1),
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GPMI_D5 | VE_3_3V | PULLUP(1),
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GPMI_D6 | VE_3_3V | PULLUP(1),
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GPMI_D7 | VE_3_3V | PULLUP(1),
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GPMI_READY0 | VE_3_3V | PULLUP(0), /* external PU */
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GPMI_CE0N | VE_3_3V | PULLUP(1),
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GPMI_RDN | VE_3_3V | PULLUP(1),
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GPMI_WRN | VE_3_3V | BITKEEPER(1),
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GPMI_ALE | VE_3_3V | PULLUP(1),
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GPMI_CLE | VE_3_3V | PULLUP(1),
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GPMI_RESETN | VE_3_3V | PULLUP(0), /* external PU */
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/* Network interface */
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/*
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* Note: To setup the external phy in a manner the baseboard
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* supports, its configuration is divided into a small part here in
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* the CPU card setup and the remaining configuration in the baseboard
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* file.
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* Here: Switch on the power supply to the external phy, but keep its
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* reset line low.
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*/
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/* send a "good morning" to the ext. phy 0 = reset */
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ENET0_RX_CLK_GPIO | VE_3_3V | PULLUP(0) | GPIO_OUT | GPIO_VALUE(0),
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/* phy power control 1 = on */
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PWM4_GPIO | VE_3_3V | GPIO_OUT | PULLUP(0) | GPIO_VALUE(1),
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ENET_CLK | VE_3_3V | BITKEEPER(0),
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ENET0_MDC | VE_3_3V | PULLUP(0),
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ENET0_MDIO | VE_3_3V | PULLUP(0),
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ENET0_TXD0 | VE_3_3V | PULLUP(0),
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ENET0_TXD1 | VE_3_3V | PULLUP(0),
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ENET0_TX_EN | VE_3_3V | PULLUP(0),
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ENET0_TX_CLK | VE_3_3V | BITKEEPER(0),
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};
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extern void base_board_init(void);
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static int tx28_mem_init(void)
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{
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arm_add_mem_device("ram0", IMX_MEMORY_BASE, 128 * 1024 * 1024);
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return 0;
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}
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mem_initcall(tx28_mem_init);
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static int tx28_devices_init(void)
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{
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int i;
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/* initizalize gpios */
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for (i = 0; i < ARRAY_SIZE(tx28_pad_setup); i++)
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imx_gpio_mode(tx28_pad_setup[i]);
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armlinux_set_architecture(MACH_TYPE_TX28);
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base_board_init();
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imx28_add_nand();
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return 0;
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}
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device_initcall(tx28_devices_init);
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