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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2009-2014 Freescale Semiconductor, Inc.
* Copyright 2020 NXP
*
* This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
* arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
* cpu specific common code for 85xx/86xx processors.
*/
#include <common.h>
#include <cpu_func.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
#include <asm/mp.h>
#include <asm/fsl_serdes.h>
#include <phy.h>
#include <hwconfig.h>
#if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
static int ft_del_cpuhandle(void *blob, int cpuhandle)
{
int off, ret = -FDT_ERR_NOTFOUND;
/* if we find a match, we'll delete at it which point the offsets are
* invalid so we start over from the beginning
*/
off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
&cpuhandle, 4);
while (off != -FDT_ERR_NOTFOUND) {
fdt_delprop(blob, off, "cpu-handle");
ret = 1;
off = fdt_node_offset_by_prop_value(blob, -1, "cpu-handle",
&cpuhandle, 4);
}
return ret;
}
void ft_fixup_num_cores(void *blob) {
int off, num_cores, del_cores;
del_cores = 0;
num_cores = cpu_numcores();
off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
while (off != -FDT_ERR_NOTFOUND) {
u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
u32 phys_cpu_id = thread_to_core(*reg);
if (!is_core_valid(phys_cpu_id) || is_core_disabled(phys_cpu_id)) {
int ph = fdt_get_phandle(blob, off);
/* Delete the cpu node once there are no cpu handles */
if (-FDT_ERR_NOTFOUND == ft_del_cpuhandle(blob, ph)) {
fdt_del_node(blob, off);
del_cores++;
}
/* either we deleted some cpu handles or the cpu node
* so we reset the offset back to the start since we
* can't trust the offsets anymore
*/
off = -1;
}
off = fdt_node_offset_by_prop_value(blob, off,
"device_type", "cpu", 4);
}
debug ("%x core system found\n", num_cores);
debug ("deleted %d extra core entry entries from device tree\n",
del_cores);
}
#endif /* defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) */
int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
{
const char *conn;
/* Do NOT apply fixup for backplane modes specified in DT */
if (phyc == PHY_INTERFACE_MODE_XGMII) {
conn = fdt_getprop(blob, offset, "phy-connection-type", NULL);
if (is_backplane_mode(conn))
return 0;
}
return fdt_setprop_string(blob, offset, "phy-connection-type",
phy_string_for_interface(phyc));
}
#ifdef CONFIG_SYS_SRIO
static inline void ft_disable_srio_port(void *blob, int srio_off, int port)
{
int off = fdt_node_offset_by_prop_value(blob, srio_off,
"cell-index", &port, 4);
if (off >= 0) {
off = fdt_setprop_string(blob, off, "status", "disabled");
if (off > 0)
printf("WARNING unable to set status for fsl,srio "
"port %d: %s\n", port, fdt_strerror(off));
}
}
static inline void ft_disable_rman(void *blob)
{
int off = fdt_node_offset_by_compatible(blob, -1, "fsl,rman");
if (off >= 0) {
off = fdt_setprop_string(blob, off, "status", "disabled");
if (off > 0)
printf("WARNING unable to set status for fsl,rman %s\n",
fdt_strerror(off));
}
}
static inline void ft_disable_rmu(void *blob)
{
int off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio-rmu");
if (off >= 0) {
off = fdt_setprop_string(blob, off, "status", "disabled");
if (off > 0)
printf("WARNING unable to set status for "
"fsl,srio-rmu %s\n", fdt_strerror(off));
}
}
void ft_srio_setup(void *blob)
{
int srio1_used = 0, srio2_used = 0;
int srio_off;
/* search for srio node, if doesn't exist just return - nothing todo */
srio_off = fdt_node_offset_by_compatible(blob, -1, "fsl,srio");
if (srio_off < 0)
return;
#ifdef CONFIG_SRIO1
if (is_serdes_configured(SRIO1))
srio1_used = 1;
#endif
#ifdef CONFIG_SRIO2
if (is_serdes_configured(SRIO2))
srio2_used = 1;
#endif
/* mark port1 disabled */
if (!srio1_used)
ft_disable_srio_port(blob, srio_off, 1);
/* mark port2 disabled */
if (!srio2_used)
ft_disable_srio_port(blob, srio_off, 2);
/* if both ports not used, disable controller, rmu and rman */
if (!srio1_used && !srio2_used) {
fdt_setprop_string(blob, srio_off, "status", "disabled");
ft_disable_rman(blob);
ft_disable_rmu(blob);
}
}
#endif
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