GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drivers/net/phy/m88e1512: Provide functionality to customize LED status 

For Marvel PHY it could be necessary to customize the shown LED status
at the connector. The LED status can be changed via Function Control
Register on page 3.

Link to the Marvell PHY 88E1512 datasheet:
https://web.archive.org/web/20221109080111/https://www.marvell.com/content/dam/marvell/en/public-collateral/phys-transceivers/marvell-phys-transceivers-alaska-88e151x-datasheet.pdf

Change-Id: Ia71c43f4286f9201f03cb759252ebb405ab81904
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69386
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Mario Scheithauer 2022-11-08 13:50:06 +01:00 committed by Martin L Roth
parent 49ec39fa7f
commit 1a97c89d7b
3 changed files with 51 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/drivers/net/phy/m88e1512/chip.h Normal file
View File

@ -0,0 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include "m88e1512.h"
struct drivers_net_phy_m88e1512_config {
bool configure_leds; /* Enable LED customization */
unsigned char led_0_ctrl; /* LED[0] Control */
unsigned char led_1_ctrl; /* LED[1] Control */
unsigned char led_2_ctrl; /* LED[2] Control */
};

30
src/drivers/net/phy/m88e1512/m88e1512.c
View File

@ -1,9 +1,39 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <device/device.h>
#include <device/mdio.h>
#include <device/pci.h>
#include "chip.h"
#include "m88e1512.h"
static void switch_page(struct device *dev, uint8_t page)
{
mdio_write(dev, PAGE_REG, page);
}
static void m88e1512_init(struct device *dev)
{
struct drivers_net_phy_m88e1512_config *config = dev->chip_info;
uint16_t reg;
/* Configure LEDs if requested. */
if (config->configure_leds) {
printk(BIOS_DEBUG, "%s: Set a customized LED mode for %s.\n",
dev_path(dev->bus->dev), dev->chip_ops->name);
/* Select page 3 to access LED function control register. */
switch_page(dev, 3);
/* Modify PHY LED mode. */
reg = mdio_read(dev, LED_FUNC_CTRL_REG);
clrsetbits16(&reg, LED_FUNC_CTRL_MASK, config->led_0_ctrl |
(config->led_1_ctrl << 4) | (config->led_2_ctrl << 8));
mdio_write(dev, LED_FUNC_CTRL_REG, reg);
/* Switch back to page 0. */
switch_page(dev, 0);
}
}
struct device_operations m88e1512_ops = {

11
src/drivers/net/phy/m88e1512/m88e1512.h Normal file
View File

@ -0,0 +1,11 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _PHY_M88E1512_H_
#define _PHY_M88E1512_H_
/* Register layout */
#define PAGE_REG 0x16
#define LED_FUNC_CTRL_REG 0x10
#define LED_FUNC_CTRL_MASK 0x0FFF
#endif /* _PHY_M88E1512_H_ */