diff options
Diffstat (limited to 'roms/u-boot/arch/powerpc/cpu/mpc8xxx/fdt.c')
| -rw-r--r-- | roms/u-boot/arch/powerpc/cpu/mpc8xxx/fdt.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/roms/u-boot/arch/powerpc/cpu/mpc8xxx/fdt.c b/roms/u-boot/arch/powerpc/cpu/mpc8xxx/fdt.c new file mode 100644 index 000000000..67f8b1000 --- /dev/null +++ b/roms/u-boot/arch/powerpc/cpu/mpc8xxx/fdt.c @@ -0,0 +1,162 @@ +// 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> + +#ifndef CONFIG_USB_MAX_CONTROLLER_COUNT +#define CONFIG_USB_MAX_CONTROLLER_COUNT 1 +#endif + +#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 |