155 lines
3.8 KiB
C
155 lines
3.8 KiB
C
/*
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* Copyright (C) 2010 Juergen Beisert, Pengutronix <kernel@pengutronix.de>
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* Copyright (C) 2011 Marc Kleine-Budde, Pengutronix <mkl@pengutronix.de>
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* Copyright (C) 2011 Wolfram Sang, Pengutronix <w.sang@pengutronix.de>
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* Copyright (C) 2012 Maxime Ripard, Free Electrons <maxime.ripard@free-electrons.com>
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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 <environment.h>
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#include <envfs.h>
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#include <errno.h>
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#include <fec.h>
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#include <gpio.h>
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#include <init.h>
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#include <mci.h>
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#include <io.h>
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#include <net.h>
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#include <sizes.h>
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#include <i2c/i2c.h>
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#include <i2c/i2c-gpio.h>
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#include <i2c/at24.h>
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#include <mach/clock.h>
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#include <mach/imx-regs.h>
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#include <mach/iomux.h>
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#include <mach/mci.h>
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#include <asm/armlinux.h>
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#include <asm/mmu.h>
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#include <mach/fb.h>
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#include <generated/mach-types.h>
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#include "hwdetect.h"
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/* setup the CPU card internal signals */
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static const uint32_t cfa10036_pads[] = {
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/* duart */
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FUNC(2) | PORTF(3, 2) | VE_3_3V,
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FUNC(2) | PORTF(3, 3) | VE_3_3V,
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/* mmc0 */
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SSP0_D0 | VE_3_3V | PULLUP(1),
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SSP0_D1 | VE_3_3V | PULLUP(1),
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SSP0_D2 | VE_3_3V | PULLUP(1),
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SSP0_D3 | VE_3_3V | PULLUP(1),
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SSP0_D4 | VE_3_3V | PULLUP(1),
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SSP0_D5 | VE_3_3V | PULLUP(1),
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SSP0_D6 | VE_3_3V | PULLUP(1),
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SSP0_D7 | VE_3_3V | PULLUP(1),
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SSP0_CMD | VE_3_3V | PULLUP(1),
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SSP0_CD | VE_3_3V | PULLUP(1),
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SSP0_SCK | VE_3_3V | BITKEEPER(0),
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/* MCI slot power control 1 = off */
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PWM3_GPIO | VE_3_3V | GPIO_OUT | GPIO_VALUE(0),
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/* i2c0 */
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AUART0_TX_GPIO | VE_3_3V | PULLUP(1),
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AUART0_RX_GPIO | VE_3_3V | PULLUP(1),
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};
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static struct mxs_mci_platform_data mci_pdata = {
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.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
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.voltages = MMC_VDD_32_33 | MMC_VDD_33_34, /* fixed to 3.3 V */
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.f_min = 400 * 1000,
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.f_max = 25000000,
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};
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static struct i2c_board_info cfa10036_i2c_devices[] = {
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{
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I2C_BOARD_INFO("24c02", 0x50)
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},
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};
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static struct i2c_gpio_platform_data i2c_gpio_pdata = {
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.sda_pin = 3 * 32 + 1,
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.scl_pin = 3 * 32 + 0,
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.udelay = 5, /* ~100 kHz */
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};
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void v5_mmu_cache_flush(void);
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long cfa10036_get_ram_size(void)
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{
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volatile u32 *base = (void *)IMX_MEMORY_BASE;
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volatile u32 *ofs = base + SZ_128M / sizeof(u32);
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*base = *ofs = 0xdeadbeef;
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*ofs = 0xbaadcafe;
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v5_mmu_cache_flush();
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if (*base == 0xbaadcafe)
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return SZ_128M;
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else
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return SZ_256M;
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}
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static int cfa10036_mem_init(void)
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{
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arm_add_mem_device("ram0", IMX_MEMORY_BASE, cfa10036_get_ram_size());
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return 0;
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}
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mem_initcall(cfa10036_mem_init);
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static int cfa10036_devices_init(void)
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{
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int i, ret;
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/* initizalize muxing */
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for (i = 0; i < ARRAY_SIZE(cfa10036_pads); i++)
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imx_gpio_mode(cfa10036_pads[i]);
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armlinux_set_architecture(MACH_TYPE_CFA10036);
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add_generic_device("mxs_mci", 0, NULL, IMX_SSP0_BASE, SZ_8K,
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IORESOURCE_MEM, &mci_pdata);
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add_generic_device("ocotp", 0, NULL, IMX_OCOTP_BASE, SZ_8K,
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IORESOURCE_MEM, NULL);
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i2c_register_board_info(0, cfa10036_i2c_devices, ARRAY_SIZE(cfa10036_i2c_devices));
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add_generic_device_res("i2c-gpio", 0, NULL, 0, &i2c_gpio_pdata);
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cfa10036_detect_hw();
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default_environment_path_set("/dev/disk0.1");
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return 0;
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}
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device_initcall(cfa10036_devices_init);
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static int cfa10036_console_init(void)
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{
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barebox_set_model("crystalfontz-cfa10036");
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barebox_set_hostname("cfa10036");
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add_generic_device("stm_serial", 0, NULL, IMX_DBGUART_BASE, SZ_8K,
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IORESOURCE_MEM, NULL);
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return 0;
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}
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console_initcall(cfa10036_console_init);
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