// 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 #include #include #include #include #include #include #include #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