1/*
2 * Copyright (c) 2022-2023 HPMicro
3 * SPDX-License-Identifier: BSD-3-Clause
4 */
5
6
7define memory with size = 4G;
8
9/* Regions */
10define region NOR_CFG_OPTION = [ from 0x80000400 size 0x1000 ];
11define region BOOT_HEADER = [ from 0x80001000 size 0x2000 ];
12define region XPI0 = [from 0x80003000 size _flash_size - 0x3000 ];   /* XPI0 */
13define region ILM = [from 0x00000000 size 256k];    /* ILM */
14define region DLM = [from 0x00200000 size 256k];    /* DLM */
15define region AXI_SRAM = [from 0x01200000 size 512k];
16define region NONCACHEABLE_RAM = [from 0x01280000 size 256k];
17define region SHARE_RAM = [from 0x012FC000 size 16k];
18define region AHB_SRAM = [from 0xF0200000 size 32k];
19
20/* Blocks */
21define block vectors with fixed order       { section .vector_table, section .isr_vector };
22define block vectors_s with fixed order     { section .vector_s_table, section .isr_s_vector };
23define block ctors                          { section .ctors,     section .ctors.*, block with         alphabetical order { init_array } };
24define block dtors                          { section .dtors,     section .dtors.*, block with reverse alphabetical order { fini_array } };
25define block eh_frame                       { section .eh_frame,  section .eh_frame.* };
26define block tbss                           { section .tbss,      section .tbss.*  };
27define block tdata                          { section .tdata,     section .tdata.* };
28define block tls   with fixed order         { block tbss, block tdata };
29define block tdata_load                     { copy of block tdata };
30define block heap  with size = __HEAPSIZE__,  alignment = 8, /* fill =0x00, */ readwrite access { };
31define block stack with size = __STACKSIZE__, alignment = 16, /* fill =0xCD, */ readwrite access { };
32define block cherryusb_usbh_class_info with alignment = 8    { section .usbh_class_info };
33define block framebuffer with alignment = 8                  { section .framebuffer };
34define block boot_header with fixed order                    { section .boot_header, section .fw_info_table, section .dc_info };
35define block rtthread_FSymTab                                { section FSymTab };
36define block rtthread_VSymTab                                { section VSymTab };
37define block rtthread_rti_fn with alphabetical order         { section .rti_fn* };
38define block rtthread_RTMSymTab                              { section RTMSymTab };
39
40/* Symbols */
41define exported symbol __nor_cfg_option_load_addr__ = start of region NOR_CFG_OPTION;
42define exported symbol __boot_header_load_addr__ = start of region BOOT_HEADER;
43define exported symbol __app_load_addr__ = start of region XPI0;
44define exported symbol __app_offset__ = __app_load_addr__ - __boot_header_load_addr__;
45define exported symbol __boot_header_length__ = size of block boot_header;
46define exported symbol __fw_size__ = 0x1000;
47
48define exported symbol __noncacheable_start__ = start of region NONCACHEABLE_RAM;
49define exported symbol __noncacheable_end__ = end of region NONCACHEABLE_RAM + 1;
50define exported symbol __share_mem_start__ = start of region SHARE_RAM;
51define exported symbol __share_mem_end__ = end of region SHARE_RAM + 1;
52
53define exported symbol _stack_safe = end of block stack + 1;
54define exported symbol _stack = end of block stack + 1;
55define exported symbol __usbh_class_info_start__ = start of block cherryusb_usbh_class_info;
56define exported symbol __usbh_class_info_end__ = end of block cherryusb_usbh_class_info + 1;
57
58define exported symbol __fsymtab_start = start of block rtthread_FSymTab;
59define exported symbol __fsymtab_end = end of block rtthread_FSymTab + 1;
60
61define exported symbol __vsymtab_start = start of block rtthread_VSymTab;
62define exported symbol __vsymtab_end = end of block rtthread_VSymTab + 1;
63
64define exported symbol __rt_init_start = start of block rtthread_rti_fn;
65define exported symbol __rt_init_end = end of block rtthread_rti_fn + 1;
66
67define exported symbol __rtmsymtab_start = start of block rtthread_RTMSymTab;
68define exported symbol __rtmsymtab_end = end of block rtthread_RTMSymTab + 1;
69
70/* Initialization */
71do not initialize                           { section .noncacheable, section .fast_ram };
72do not initialize                           { section .non_init, section .non_init.*, section .*.non_init, section .*.non_init.* };
73do not initialize                           { section .no_init, section .no_init.*, section .*.no_init, section .*.no_init.* };   // Legacy sections, kept for backwards compatibility
74do not initialize                           { section .noinit, section .noinit.*, section .*.noinit, section .*.noinit.* };       // Legacy sections, used by some SDKs/HALs
75
76initialize by copy with packing=auto        { section .noncacheable.init, section .fast_ram.init };
77initialize by copy with packing=none        { section .data, section .data.*, section .*.data, section .*.data.* };               // Static data sections
78initialize by copy with packing=auto        { section .sdata, section .sdata.* };
79initialize by copy with packing=auto        { section .fast, section .fast.*, section .*.fast, section .*.fast.* };               // "RAM Code" sections
80
81initialize by calling __SEGGER_init_heap    { block heap  };                                        // Init the heap if there is one
82initialize by calling __SEGGER_init_ctors   { block ctors };                                        // Call constructors for global objects which need to be constructed before reaching main (if any). Make sure this is done after setting up heap.
83initialize by copy                          { block vectors, block vectors_s };
84initialize by copy                          { block cherryusb_usbh_class_info };
85
86/* Placement */
87place in NOR_CFG_OPTION                     { section .nor_cfg_option };
88place in BOOT_HEADER with fixed order       { block boot_header };
89place at start of XPI0 with fixed order     { symbol _start };
90place at start of ILM with fixed order      { block vectors, block vectors_s };
91place in XPI0 with minimum size order       {
92                                              block tdata_load,                        // Thread-local-storage load image
93                                              block ctors,                             // Constructors block
94                                              block dtors,                             // Destructors block
95                                              block eh_frame,                          // Exception frames placed directly into flash overriding default placement (sections writable)
96                                              block rtthread_FSymTab,
97                                              block rtthread_VSymTab,
98                                              block rtthread_rti_fn,
99                                              block rtthread_RTMSymTab,
100                                              readonly,                                // Catch-all for readonly data (e.g. .rodata, .srodata)
101                                              readexec                                 // Catch-all for (readonly) executable code (e.g. .text)
102                                            };
103
104//
105// The GNU compiler creates these exception-related sections as writeable.
106// Override the section header flag and make them readonly so they can be
107// placed into flash.
108//
109define access readonly { section .gcc_except_table, section .gcc_except_table.* };
110define access readonly { section .eh_frame, section .eh_frame.* };
111define access readonly { section .sdata.DW.* };
112
113place in ILM                              { section .fast, section .fast.* };                       // "ramfunc" section
114place in AXI_SRAM                         { block cherryusb_usbh_class_info };
115place in AXI_SRAM                         { block framebuffer };
116place in AXI_SRAM                         {
117                                            block tls,                                            // Thread-local-storage block
118                                            readwrite,                                            // Catch-all for initialized/uninitialized data sections (e.g. .data, .noinit)
119                                            zeroinit                                              // Catch-all for zero-initialized data sections (e.g. .bss)
120                                          };
121place in NONCACHEABLE_RAM                 { section .noncacheable, section .noncacheable.init, section .noncacheable.bss };
122place in SHARE_RAM                        { section .sh_mem};                                     // Share memory
123place in AHB_SRAM                         { section .ahb_sram};                                   // AHB SRAM memory
124place in DLM                              { section .fast_ram.init, section .fast_ram, section .fast_ram.bss};   // Fast access memory
125place in DLM                              { block heap };                                         // Heap reserved block
126place at end of DLM                       { block stack };                                        // Stack reserved block
127
128/* Keep */
129keep { section .nor_cfg_option, section .boot_header, section .fw_info_table, section .dc_info };
130keep { section .usbh_class_info, section FSymTab, section VSymTab, section .rti_fn*, section RTMSymTab };
131