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Diffstat (limited to 'arch/arm/boards/ccxmx53/board.c')
| -rw-r--r-- | arch/arm/boards/ccxmx53/board.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/arch/arm/boards/ccxmx53/board.c b/arch/arm/boards/ccxmx53/board.c new file mode 100644 index 0000000000..0031aed772 --- /dev/null +++ b/arch/arm/boards/ccxmx53/board.c @@ -0,0 +1,181 @@ +/* + * 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 ((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); |