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/*
* Copyright (C) 2014 Lucas Stach, Pengutronix
*
* 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 <i2c/i2c.h>
#include <init.h>
#include <linux/marvell_phy.h>
#include <linux/pci.h>
#include <linux/phy.h>
#include <mach/bbu.h>
#include <mach/imx6.h>
#include <net.h>
#include "gsc.h"
static int gw54xx_wdog_of_fixup(struct device_node *root, void *context)
{
struct device_node *np;
/* switch to the watchdog with internal reset capabilities */
np = of_find_node_by_name(root, "wdog@020c0000");
of_device_disable(np);
np = of_find_node_by_name(root, "wdog@020bc000");
of_device_enable(np);
return 0;
}
static int gw54xx_devices_init(void)
{
struct i2c_client client;
struct device_node *dnode;
u8 reg;
u8 mac[6];
if (!of_machine_is_compatible("gw,imx6q-gw54xx"))
return 0;
client.adapter = i2c_get_adapter(0);
if (!client.adapter) {
pr_err("could not get system controller i2c bus\n");
return -ENODEV;
}
/* disable the GSC boot watchdog */
client.addr = GSC_SC_ADDR;
gsc_i2c_read(&client, GSC_SC_CTRL1, ®, 1);
reg |= GSC_SC_CTRL1_WDDIS;
gsc_i2c_write(&client, GSC_SC_CTRL1, ®, 1);
/* read MAC adresses from EEPROM and attach to eth devices */
dnode = of_find_node_by_alias(of_get_root_node(), "ethernet0");
if (dnode) {
client.addr = GSC_EEPROM_ADDR;
gsc_i2c_read(&client, 0x00, mac, 6);
of_eth_register_ethaddr(dnode, mac);
}
dnode = of_find_node_by_alias(of_get_root_node(), "ethernet1");
if (dnode) {
client.addr = GSC_EEPROM_ADDR;
gsc_i2c_read(&client, 0x06, mac, 6);
of_eth_register_ethaddr(dnode, mac);
}
/* boards before rev E don't have the external watchdog signal */
if (gsc_get_rev(&client) < 'E')
of_register_fixup(gw54xx_wdog_of_fixup, NULL);
imx6_bbu_nand_register_handler("nand", BBU_HANDLER_FLAG_DEFAULT);
barebox_set_hostname("gw54xx");
return 0;
}
device_initcall(gw54xx_devices_init);
static int marvell_88e1510_phy_fixup(struct phy_device *dev)
{
u32 val;
/* LED settings */
phy_write(dev, 22, 3);
val = phy_read(dev, 16);
val &= 0xff00;
val |= 0x0017;
phy_write(dev, 16, val);
phy_write(dev, 22, 0);
return 0;
}
static int gw54xx_coredevices_init(void)
{
if (!of_machine_is_compatible("gw,imx6q-gw54xx"))
return 0;
phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK,
marvell_88e1510_phy_fixup);
return 0;
}
coredevice_initcall(gw54xx_coredevices_init);
/*
* fixup for PLX PEX8909 bridge to configure GPIO1-7 as output High
* as they are used for slots1-7 PERST#
*/
static void ventana_pciesw_early_fixup(struct pci_dev *dev)
{
u32 dw;
if (!of_machine_is_compatible("gw,ventana"))
return;
if (dev->devfn != 0)
return;
pci_read_config_dword(dev, 0x62c, &dw);
dw |= 0xaaa8; // GPIO1-7 outputs
pci_write_config_dword(dev, 0x62c, dw);
pci_read_config_dword(dev, 0x644, &dw);
dw |= 0xfe; // GPIO1-7 output high
pci_write_config_dword(dev, 0x644, dw);
mdelay(100);
}
DECLARE_PCI_FIXUP_EARLY(0x10b5, 0x8609, ventana_pciesw_early_fixup);
DECLARE_PCI_FIXUP_EARLY(0x10b5, 0x8606, ventana_pciesw_early_fixup);
DECLARE_PCI_FIXUP_EARLY(0x10b5, 0x8604, ventana_pciesw_early_fixup);
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