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/*
* Copyright (C) 2010 Juergen Beisert, Pengutronix <kernel@pengutronix.de>
* Copyright (C) 2011 Marc Kleine-Budde, Pengutronix <mkl@pengutronix.de>
* Copyright (C) 2011 Wolfram Sang, Pengutronix <w.sang@pengutronix.de>
* Copyright (C) 2012 Maxime Ripard, Free Electrons <maxime.ripard@free-electrons.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <common.h>
#include <environment.h>
#include <envfs.h>
#include <errno.h>
#include <gpio.h>
#include <init.h>
#include <mci.h>
#include <io.h>
#include <net.h>
#include <linux/sizes.h>
#include <i2c/i2c.h>
#include <i2c/i2c-gpio.h>
#include <i2c/at24.h>
#include <mach/clock.h>
#include <mach/imx-regs.h>
#include <mach/iomux.h>
#include <mach/mci.h>
#include <asm/armlinux.h>
#include <asm/mmu.h>
#include <mach/fb.h>
#include <generated/mach-types.h>
#include "hwdetect.h"
/* setup the CPU card internal signals */
static const uint32_t cfa10036_pads[] = {
/* duart */
FUNC(2) | PORTF(3, 2) | VE_3_3V,
FUNC(2) | PORTF(3, 3) | VE_3_3V,
/* mmc0 */
SSP0_D0 | VE_3_3V | PULLUP(1),
SSP0_D1 | VE_3_3V | PULLUP(1),
SSP0_D2 | VE_3_3V | PULLUP(1),
SSP0_D3 | VE_3_3V | PULLUP(1),
SSP0_D4 | VE_3_3V | PULLUP(1),
SSP0_D5 | VE_3_3V | PULLUP(1),
SSP0_D6 | VE_3_3V | PULLUP(1),
SSP0_D7 | VE_3_3V | PULLUP(1),
SSP0_CMD | VE_3_3V | PULLUP(1),
SSP0_CD | VE_3_3V | PULLUP(1),
SSP0_SCK | VE_3_3V | BITKEEPER(0),
/* MCI slot power control 1 = off */
PWM3_GPIO | VE_3_3V | GPIO_OUT | GPIO_VALUE(0),
/* i2c0 */
AUART0_TX_GPIO | VE_3_3V | PULLUP(1),
AUART0_RX_GPIO | VE_3_3V | PULLUP(1),
};
static struct mxs_mci_platform_data mci_pdata = {
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34, /* fixed to 3.3 V */
.f_min = 400 * 1000,
.f_max = 25000000,
};
static struct i2c_board_info cfa10036_i2c_devices[] = {
{
I2C_BOARD_INFO("24c02", 0x50)
},
};
static struct i2c_gpio_platform_data i2c_gpio_pdata = {
.sda_pin = 3 * 32 + 1,
.scl_pin = 3 * 32 + 0,
.udelay = 5, /* ~100 kHz */
};
void v5_mmu_cache_flush(void);
long cfa10036_get_ram_size(void)
{
volatile u32 *base = (void *)IMX_MEMORY_BASE;
volatile u32 *ofs = base + SZ_128M / sizeof(u32);
*base = *ofs = 0xdeadbeef;
*ofs = 0xbaadcafe;
v5_mmu_cache_flush();
if (*base == 0xbaadcafe)
return SZ_128M;
else
return SZ_256M;
}
static int cfa10036_mem_init(void)
{
arm_add_mem_device("ram0", IMX_MEMORY_BASE, cfa10036_get_ram_size());
return 0;
}
mem_initcall(cfa10036_mem_init);
static int cfa10036_devices_init(void)
{
int i;
/* initizalize muxing */
for (i = 0; i < ARRAY_SIZE(cfa10036_pads); i++)
imx_gpio_mode(cfa10036_pads[i]);
armlinux_set_architecture(MACH_TYPE_CFA10036);
add_generic_device("mxs_mci", 0, NULL, IMX_SSP0_BASE, SZ_8K,
IORESOURCE_MEM, &mci_pdata);
i2c_register_board_info(0, cfa10036_i2c_devices, ARRAY_SIZE(cfa10036_i2c_devices));
add_generic_device_res("i2c-gpio", 0, NULL, 0, &i2c_gpio_pdata);
cfa10036_detect_hw();
default_environment_path_set("/dev/disk0.1");
return 0;
}
device_initcall(cfa10036_devices_init);
static int cfa10036_console_init(void)
{
barebox_set_model("crystalfontz-cfa10036");
barebox_set_hostname("cfa10036");
add_generic_device("stm_serial", 0, NULL, IMX_DBGUART_BASE, SZ_8K,
IORESOURCE_MEM, NULL);
return 0;
}
console_initcall(cfa10036_console_init);
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