^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _POWERPC_PROM_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _POWERPC_PROM_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #ifdef __KERNEL__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Definitions for talking to the Open Firmware PROM on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Power Macintosh computers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Copyright (C) 1996-2005 Paul Mackerras.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) /* These includes should be removed once implicit includes are cleaned up. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/of_fdt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/of_irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define OF_DT_END_NODE 0x2 /* End node */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define OF_DT_PROP 0x3 /* Property: name off, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * content */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define OF_DT_NOP 0x4 /* nop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define OF_DT_END 0x9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define OF_DT_VERSION 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * This is what gets passed to the kernel by prom_init or kexec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * The dt struct contains the device tree structure, full pathes and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * property contents. The dt strings contain a separate block with just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * the strings for the property names, and is fully page aligned and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * self contained in a page, so that it can be kept around by the kernel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * each property name appears only once in this page (cheap compression)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * the mem_rsvmap contains a map of reserved ranges of physical memory,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * passing it here instead of in the device-tree itself greatly simplifies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * the job of everybody. It's just a list of u64 pairs (base/size) that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * ends when size is 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct boot_param_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) __be32 magic; /* magic word OF_DT_HEADER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) __be32 totalsize; /* total size of DT block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) __be32 off_dt_struct; /* offset to structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __be32 off_dt_strings; /* offset to strings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) __be32 off_mem_rsvmap; /* offset to memory reserve map */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) __be32 version; /* format version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) __be32 last_comp_version; /* last compatible version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* version 2 fields below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) __be32 boot_cpuid_phys; /* Physical CPU id we're booting on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* version 3 fields below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) __be32 dt_strings_size; /* size of the DT strings block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /* version 17 fields below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) __be32 dt_struct_size; /* size of the DT structure block */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * OF address retreival & translation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* Parse the ibm,dma-window property of an OF node into the busno, phys and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * size parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) unsigned long *busno, unsigned long *phys,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) unsigned long *size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) extern void of_instantiate_rtc(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) extern int of_get_ibm_chip_id(struct device_node *np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct of_drc_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) char *drc_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) char *drc_name_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u32 drc_index_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) u32 drc_name_suffix_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) u32 num_sequential_elems;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) u32 sequential_inc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) u32 drc_power_domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) u32 last_drc_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) extern int of_read_drc_info_cell(struct property **prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) const __be32 **curval, struct of_drc_info *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * There are two methods for telling firmware what our capabilities are.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * Newer machines have an "ibm,client-architecture-support" method on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * root node. For older machines, we have to call the "process-elf-header"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * method in the /packages/elf-loader node, passing it a fake 32-bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * ELF header containing a couple of PT_NOTE sections that contain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * structures that contain various information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /* New method - extensible architecture description vector. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) /* Option vector bits - generic bits in byte 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define OV_IGNORE 0x80 /* ignore this vector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define OV_CESSATION_POLICY 0x40 /* halt if unsupported option present*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) /* Option vector 1: processor architectures supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define OV1_PPC_2_00 0x80 /* set if we support PowerPC 2.00 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define OV1_PPC_2_01 0x40 /* set if we support PowerPC 2.01 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define OV1_PPC_2_02 0x20 /* set if we support PowerPC 2.02 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define OV1_PPC_2_03 0x10 /* set if we support PowerPC 2.03 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define OV1_PPC_2_04 0x08 /* set if we support PowerPC 2.04 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define OV1_PPC_2_05 0x04 /* set if we support PowerPC 2.05 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define OV1_PPC_2_06 0x02 /* set if we support PowerPC 2.06 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define OV1_PPC_2_07 0x01 /* set if we support PowerPC 2.07 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define OV1_PPC_3_00 0x80 /* set if we support PowerPC 3.00 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define OV1_PPC_3_1 0x40 /* set if we support PowerPC 3.1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /* Option vector 2: Open Firmware options supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define OV2_REAL_MODE 0x20 /* set if we want OF in real mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) /* Option vector 3: processor options supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define OV3_FP 0x80 /* floating point */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define OV3_VMX 0x40 /* VMX/Altivec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #define OV3_DFP 0x20 /* decimal FP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* Option vector 4: IBM PAPR implementation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define OV4_MIN_ENT_CAP 0x01 /* minimum VP entitled capacity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /* Option vector 5: PAPR/OF options supported
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * These bits are also used in firmware_has_feature() to validate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * the capabilities reported for vector 5 in the device tree so we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * encode the vector index in the define and use the OV5_FEAT()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * and OV5_INDX() macros to extract the desired information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define OV5_FEAT(x) ((x) & 0xff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) #define OV5_INDX(x) ((x) >> 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #define OV5_LPAR 0x0280 /* logical partitioning supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define OV5_SPLPAR 0x0240 /* shared-processor LPAR supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /* ibm,dynamic-reconfiguration-memory property supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define OV5_DRCONF_MEMORY 0x0220
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #define OV5_LARGE_PAGES 0x0210 /* large pages supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #define OV5_DONATE_DEDICATE_CPU 0x0202 /* donate dedicated CPU support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define OV5_MSI 0x0201 /* PCIe/MSI support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define OV5_CMO 0x0480 /* Cooperative Memory Overcommitment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define OV5_XCMO 0x0440 /* Page Coalescing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #define OV5_TYPE1_AFFINITY 0x0580 /* Type 1 NUMA affinity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define OV5_PRRN 0x0540 /* Platform Resource Reassignment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define OV5_HP_EVT 0x0604 /* Hot Plug Event support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define OV5_RESIZE_HPT 0x0601 /* Hash Page Table resizing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define OV5_PFO_HW_RNG 0x1180 /* PFO Random Number Generator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define OV5_PFO_HW_842 0x1140 /* PFO Compression Accelerator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) #define OV5_PFO_HW_ENCR 0x1120 /* PFO Encryption Accelerator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) #define OV5_SUB_PROCESSORS 0x1501 /* 1,2,or 4 Sub-Processors supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) #define OV5_DRMEM_V2 0x1680 /* ibm,dynamic-reconfiguration-v2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) #define OV5_XIVE_SUPPORT 0x17C0 /* XIVE Exploitation Support Mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #define OV5_XIVE_LEGACY 0x1700 /* XIVE legacy mode Only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) #define OV5_XIVE_EXPLOIT 0x1740 /* XIVE exploitation mode Only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #define OV5_XIVE_EITHER 0x1780 /* XIVE legacy or exploitation mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* MMU Base Architecture */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #define OV5_MMU_SUPPORT 0x18C0 /* MMU Mode Support Mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) #define OV5_MMU_HASH 0x1800 /* Hash MMU Only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define OV5_MMU_RADIX 0x1840 /* Radix MMU Only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define OV5_MMU_EITHER 0x1880 /* Hash or Radix Supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #define OV5_MMU_DYNAMIC 0x18C0 /* Hash or Radix Can Switch Later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #define OV5_NMMU 0x1820 /* Nest MMU Available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /* Hash Table Extensions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #define OV5_HASH_SEG_TBL 0x1980 /* In Memory Segment Tables Available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #define OV5_HASH_GTSE 0x1940 /* Guest Translation Shoot Down Avail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /* Radix Table Extensions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) #define OV5_RADIX_GTSE 0x1A40 /* Guest Translation Shoot Down Avail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) #define OV5_DRC_INFO 0x1640 /* Redef Prop Structures: drc-info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /* Option Vector 6: IBM PAPR hints */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) #define OV6_LINUX 0x02 /* Linux is our OS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #endif /* __KERNEL__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) #endif /* _POWERPC_PROM_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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