mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Grygorii Strashko](/assets/img/avatar_default.png)
Replace textual license with SPDX-License-Identifier. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/mfd/syscon.h>
|
|
|
|
#include "cpsw.h"
|
|
|
|
#define CTRL_MAC_LO_REG(offset, id) ((offset) + 0x8 * (id))
|
|
#define CTRL_MAC_HI_REG(offset, id) ((offset) + 0x8 * (id) + 0x4)
|
|
|
|
static int davinci_emac_3517_get_macid(struct device *dev, u16 offset,
|
|
int slave, u8 *mac_addr)
|
|
{
|
|
u32 macid_lsb;
|
|
u32 macid_msb;
|
|
struct regmap *syscon;
|
|
|
|
syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
|
|
if (IS_ERR(syscon)) {
|
|
if (PTR_ERR(syscon) == -ENODEV)
|
|
return 0;
|
|
return PTR_ERR(syscon);
|
|
}
|
|
|
|
regmap_read(syscon, CTRL_MAC_LO_REG(offset, slave), &macid_lsb);
|
|
regmap_read(syscon, CTRL_MAC_HI_REG(offset, slave), &macid_msb);
|
|
|
|
mac_addr[0] = (macid_msb >> 16) & 0xff;
|
|
mac_addr[1] = (macid_msb >> 8) & 0xff;
|
|
mac_addr[2] = macid_msb & 0xff;
|
|
mac_addr[3] = (macid_lsb >> 16) & 0xff;
|
|
mac_addr[4] = (macid_lsb >> 8) & 0xff;
|
|
mac_addr[5] = macid_lsb & 0xff;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cpsw_am33xx_cm_get_macid(struct device *dev, u16 offset, int slave,
|
|
u8 *mac_addr)
|
|
{
|
|
u32 macid_lo;
|
|
u32 macid_hi;
|
|
struct regmap *syscon;
|
|
|
|
syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
|
|
if (IS_ERR(syscon)) {
|
|
if (PTR_ERR(syscon) == -ENODEV)
|
|
return 0;
|
|
return PTR_ERR(syscon);
|
|
}
|
|
|
|
regmap_read(syscon, CTRL_MAC_LO_REG(offset, slave), &macid_lo);
|
|
regmap_read(syscon, CTRL_MAC_HI_REG(offset, slave), &macid_hi);
|
|
|
|
mac_addr[5] = (macid_lo >> 8) & 0xff;
|
|
mac_addr[4] = macid_lo & 0xff;
|
|
mac_addr[3] = (macid_hi >> 24) & 0xff;
|
|
mac_addr[2] = (macid_hi >> 16) & 0xff;
|
|
mac_addr[1] = (macid_hi >> 8) & 0xff;
|
|
mac_addr[0] = macid_hi & 0xff;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ti_cm_get_macid(struct device *dev, int slave, u8 *mac_addr)
|
|
{
|
|
if (of_machine_is_compatible("ti,dm8148"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
|
|
|
|
if (of_machine_is_compatible("ti,am33xx"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
|
|
|
|
if (of_device_is_compatible(dev->of_node, "ti,am3517-emac"))
|
|
return davinci_emac_3517_get_macid(dev, 0x110, slave, mac_addr);
|
|
|
|
if (of_device_is_compatible(dev->of_node, "ti,dm816-emac"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x30, slave, mac_addr);
|
|
|
|
if (of_machine_is_compatible("ti,am43"))
|
|
return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
|
|
|
|
if (of_machine_is_compatible("ti,dra7"))
|
|
return davinci_emac_3517_get_macid(dev, 0x514, slave, mac_addr);
|
|
|
|
dev_info(dev, "incompatible machine/device type for reading mac address\n");
|
|
return -ENOENT;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ti_cm_get_macid);
|
|
|
|
MODULE_LICENSE("GPL");
|