3d40aed862
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Alex Elder <elder@linaro.org> Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org> Reviewed-by: Wei Fang <wei.fang@nxp.com> Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/20230727014944.3972546-1-robh@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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/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");
|