mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 08:31:03 +00:00
f51d3b71d4
This can be useful if one wants to disable an interface in u-boot because u-boot should not manage it but then later reenable it for FDT fixing or if the kernel uses this interface. Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> [York Sun: fix conflict in fm_eth.h] Acked-by: York Sun <yorksun@freescale.com>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
|
|
* Copyright 2011 Freescale Semiconductor, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <common.h>
|
|
#include <phy.h>
|
|
#include <fm_eth.h>
|
|
#include <asm/io.h>
|
|
#include <asm/immap_85xx.h>
|
|
#include <asm/fsl_serdes.h>
|
|
|
|
static u32 port_to_devdisr[] = {
|
|
[FM1_DTSEC1] = MPC85xx_DEVDISR_TSEC1,
|
|
[FM1_DTSEC2] = MPC85xx_DEVDISR_TSEC2,
|
|
};
|
|
|
|
static int is_device_disabled(enum fm_port port)
|
|
{
|
|
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
|
|
u32 devdisr = in_be32(&gur->devdisr);
|
|
|
|
return port_to_devdisr[port] & devdisr;
|
|
}
|
|
|
|
void fman_disable_port(enum fm_port port)
|
|
{
|
|
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
|
|
|
|
/* don't allow disabling of DTSEC1 as its needed for MDIO */
|
|
if (port == FM1_DTSEC1)
|
|
return;
|
|
|
|
setbits_be32(&gur->devdisr, port_to_devdisr[port]);
|
|
}
|
|
|
|
void fman_enable_port(enum fm_port port)
|
|
{
|
|
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
|
|
|
|
clrbits_be32(&gur->devdisr, port_to_devdisr[port]);
|
|
}
|
|
|
|
phy_interface_t fman_port_enet_if(enum fm_port port)
|
|
{
|
|
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
|
|
u32 pordevsr = in_be32(&gur->pordevsr);
|
|
|
|
if (is_device_disabled(port))
|
|
return PHY_INTERFACE_MODE_NONE;
|
|
|
|
/* DTSEC1 can be SGMII, RGMII or RMII */
|
|
if (port == FM1_DTSEC1) {
|
|
if (is_serdes_configured(SGMII_FM1_DTSEC1))
|
|
return PHY_INTERFACE_MODE_SGMII;
|
|
if (pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS) {
|
|
if (pordevsr & MPC85xx_PORDEVSR_TSEC1_PRTC)
|
|
return PHY_INTERFACE_MODE_RGMII;
|
|
else
|
|
return PHY_INTERFACE_MODE_RMII;
|
|
}
|
|
}
|
|
|
|
/* DTSEC2 only supports SGMII or RGMII */
|
|
if (port == FM1_DTSEC2) {
|
|
if (is_serdes_configured(SGMII_FM1_DTSEC2))
|
|
return PHY_INTERFACE_MODE_SGMII;
|
|
if (pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS)
|
|
return PHY_INTERFACE_MODE_RGMII;
|
|
}
|
|
|
|
return PHY_INTERFACE_MODE_NONE;
|
|
}
|