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/*
* Copyright (C) 2015 Jason Cobham <cobham.jason@gmail.com>
*
* Board specific file for the Digi ConnectCore ccxmx53 SoM
*
* 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 <init.h>
#include <linux/sizes.h>
#include <i2c/i2c.h>
#include <gpio.h>
#include <generated/mach-types.h>
#include <mach/imx5.h>
#include <mach/generic.h>
#include <mach/imx53-regs.h>
#include <mach/esdctl.h>
#include <asm/armlinux.h>
#include <mach/bbu.h>
#include <mach/iim.h>
struct ccwmx53_ident {
const char *id_string;
const int mem_sz;
const char industrial;
const char eth0;
const char eth1;
const char wless;
};
static struct ccwmx53_ident ccwmx53_ids[] = {
/* 0x00 - 5500xxxx-xx */
{ "Unknown", 0, 0, 0, 0, 0},
/* 0x01 - 5500xxxx-xx */
{ "Not supported", 0, 0, 0, 0, 0},
/* 0x02 - 55001604-01 */
{ "i.MX535@1000MHz, Wireless, PHY, Ext. Eth, Accel", SZ_512M, 0, 1, 1, 1},
/* 0x03 - 55001605-01 */
{ "i.MX535@1000MHz, PHY, Accel", SZ_512M, 0, 1, 0, 0},
/* 0x04 - 55001604-02 */
{ "i.MX535@1000MHz, Wireless, PHY, Ext. Eth, Accel", SZ_512M, 0, 1, 1, 1},
/* 0x05 - 5500xxxx-xx */
{ "i.MX535@1000MHz, PHY, Ext. Eth, Accel", SZ_512M, 0, 1, 1, 0},
/* 0x06 - 55001604-03 */
{ "i.MX535@1000MHz, Wireless, PHY, Accel", SZ_512M, 0, 1, 0, 1},
/* 0x07 - 5500xxxx-xx */
{ "i.MX535@1000MHz, PHY, Accel", SZ_512M, 0, 1, 0, 0},
/* 0x08 - 55001604-04 */
{ "i.MX537@800MHz, Wireless, PHY, Accel", SZ_512M, 1, 1, 0, 1},
/* 0x09 - 55001605-02 */
{ "i.MX537@800MHz, PHY, Accel", SZ_512M, 1, 1, 0, 0},
/* 0x0a - 5500xxxx-xx */
{ "i.MX537@800MHz, Wireless, PHY, Ext. Eth, Accel", SZ_512M, 1, 1, 1, 1},
/* 0x0b - 55001605-03 */
{ "i.MX537@800MHz, PHY, Ext. Eth, Accel", SZ_1G, 1, 1, 1, 0},
/* 0x0c - 5500xxxx-xx */
{ "Reserved for future use", 0, 0, 0, 0, 0},
/* 0x0d - 55001605-05 */
{ "i.MX537@800MHz, PHY, Accel", SZ_1G, 1, 1, 0, 0},
/* 0x0e - 5500xxxx-xx */
{ "Reserved for future use", 0, 0, 0, 0, 0},
/* 0x0f - 5500xxxx-xx */
{ "Reserved for future use", 0, 0, 0, 0, 0},
};
static struct ccwmx53_ident *ccwmx53_id;
/* On these boards, memory information is encoded in the MAC address.
* Print device memory, and option info from lookup table.
* */
static int ccwmx53_devices_init(void)
{
u8 hwid[6] = {0};
char manloc = 0;
if (!of_machine_is_compatible("digi,imx53-ccxmx53"))
return 0;
if ((imx_iim_read(1, 9, hwid, sizeof(hwid)) != sizeof(hwid)) ||
(hwid[0] < 0x02) ||
(hwid[0] >= ARRAY_SIZE(ccwmx53_ids))) {
printf("Module Variant: Unknown (0x%02x) (0x%02x) (0x%02x) (0x%02x) (0x%02x) (0x%02x)\n",
hwid[0], hwid[1], hwid[2], hwid[3], hwid[4], hwid[5]);
memset(hwid, 0x00, sizeof(hwid));
}
ccwmx53_id = &ccwmx53_ids[hwid[0]];
printf("Module Variant: %s (0x%02x)\n", ccwmx53_id->id_string, hwid[0]);
if (hwid[0]) {
printf("Module HW Rev : %02x\n", hwid[1] + 1);
switch (hwid[2] & 0xc0) {
case 0x00:
manloc = 'B';
break;
case 0x40:
manloc = 'W';
break;
case 0x80:
manloc = 'S';
break;
default:
manloc = 'N';
break;
}
printf("Module Serial : %c%d\n", manloc,
((hwid[2] & 0x3f) << 24) |
(hwid[3] << 16) |
(hwid[4] << 8) |
hwid[5]);
printf("Module RAM : %dK\n", (ccwmx53_id->mem_sz) / 1024);
} else {
return -ENOSYS;
}
armlinux_set_architecture(MACH_TYPE_CCWMX53);
return 0;
}
device_initcall(ccwmx53_devices_init);
static int ccxmx53_init(void)
{
unsigned char value = 0;
struct i2c_adapter *adapter = NULL;
struct i2c_client client;
int addr = 0x68; /* da9053 device address is 0x68 */
int bus = 0; /* I2C0 bus */
if (!of_machine_is_compatible("digi,imx53-ccxmx53"))
return 0;
adapter = i2c_get_adapter(bus);
if (adapter) {
client.adapter = adapter;
client.addr = addr;
/* Enable 3.3V ext regulator. */
value = 0xfa;
if (i2c_write_reg(&client, 0x19, &value, 1) < 0) {
printf("Can't set regulator. I2C write failed\n");
return -ENOSYS;
}
} else {
printf("Can't set regulator. No I2C Adapter\n");
return -ENOSYS;
}
armlinux_set_architecture(MACH_TYPE_CCMX53);
barebox_set_model("Digi CCMX53");
barebox_set_hostname("ccxmx53");
imx53_bbu_internal_nand_register_handler("nand",
BBU_HANDLER_FLAG_DEFAULT, SZ_512K);
return 0;
}
late_initcall(ccxmx53_init);
static int ccxmx53_postcore_init(void)
{
if (!of_machine_is_compatible("digi,imx53-ccxmx53"))
return 0;
imx53_init_lowlevel(800);
return 0;
}
postcore_initcall(ccxmx53_postcore_init);
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