xref: /openbmc/u-boot/arch/x86/Kconfig (revision 0c01c3e8) 
1menu "x86 architecture"
2	depends on X86
3
4config SYS_ARCH
5	default "x86"
6
7choice
8	prompt "Mainboard vendor"
9	default VENDOR_EMULATION
10
11config VENDOR_COREBOOT
12	bool "coreboot"
13
14config VENDOR_EFI
15	bool "efi"
16
17config VENDOR_EMULATION
18	bool "emulation"
19
20config VENDOR_GOOGLE
21	bool "Google"
22
23config VENDOR_INTEL
24	bool "Intel"
25
26endchoice
27
28# board-specific options below
29source "board/coreboot/Kconfig"
30source "board/efi/Kconfig"
31source "board/emulation/Kconfig"
32source "board/google/Kconfig"
33source "board/intel/Kconfig"
34
35# platform-specific options below
36source "arch/x86/cpu/baytrail/Kconfig"
37source "arch/x86/cpu/coreboot/Kconfig"
38source "arch/x86/cpu/ivybridge/Kconfig"
39source "arch/x86/cpu/qemu/Kconfig"
40source "arch/x86/cpu/quark/Kconfig"
41source "arch/x86/cpu/queensbay/Kconfig"
42
43# architecture-specific options below
44
45config SYS_MALLOC_F_LEN
46	default 0x800
47
48config RAMBASE
49	hex
50	default 0x100000
51
52config XIP_ROM_SIZE
53	hex
54	depends on X86_RESET_VECTOR
55	default ROM_SIZE
56
57config CPU_ADDR_BITS
58	int
59	default 36
60
61config HPET_ADDRESS
62	hex
63	default 0xfed00000 if !HPET_ADDRESS_OVERRIDE
64
65config SMM_TSEG
66	bool
67	default n
68
69config SMM_TSEG_SIZE
70	hex
71
72config X86_RESET_VECTOR
73	bool
74	default n
75
76config RESET_SEG_START
77	hex
78	depends on X86_RESET_VECTOR
79	default 0xffff0000
80
81config RESET_SEG_SIZE
82	hex
83	depends on X86_RESET_VECTOR
84	default 0x10000
85
86config RESET_VEC_LOC
87	hex
88	depends on X86_RESET_VECTOR
89	default 0xfffffff0
90
91config SYS_X86_START16
92	hex
93	depends on X86_RESET_VECTOR
94	default 0xfffff800
95
96config BOARD_ROMSIZE_KB_512
97	bool
98config BOARD_ROMSIZE_KB_1024
99	bool
100config BOARD_ROMSIZE_KB_2048
101	bool
102config BOARD_ROMSIZE_KB_4096
103	bool
104config BOARD_ROMSIZE_KB_8192
105	bool
106config BOARD_ROMSIZE_KB_16384
107	bool
108
109choice
110	prompt "ROM chip size"
111	depends on X86_RESET_VECTOR
112	default UBOOT_ROMSIZE_KB_512 if BOARD_ROMSIZE_KB_512
113	default UBOOT_ROMSIZE_KB_1024 if BOARD_ROMSIZE_KB_1024
114	default UBOOT_ROMSIZE_KB_2048 if BOARD_ROMSIZE_KB_2048
115	default UBOOT_ROMSIZE_KB_4096 if BOARD_ROMSIZE_KB_4096
116	default UBOOT_ROMSIZE_KB_8192 if BOARD_ROMSIZE_KB_8192
117	default UBOOT_ROMSIZE_KB_16384 if BOARD_ROMSIZE_KB_16384
118	help
119	  Select the size of the ROM chip you intend to flash U-Boot on.
120
121	  The build system will take care of creating a u-boot.rom file
122	  of the matching size.
123
124config UBOOT_ROMSIZE_KB_512
125	bool "512 KB"
126	help
127	  Choose this option if you have a 512 KB ROM chip.
128
129config UBOOT_ROMSIZE_KB_1024
130	bool "1024 KB (1 MB)"
131	help
132	  Choose this option if you have a 1024 KB (1 MB) ROM chip.
133
134config UBOOT_ROMSIZE_KB_2048
135	bool "2048 KB (2 MB)"
136	help
137	  Choose this option if you have a 2048 KB (2 MB) ROM chip.
138
139config UBOOT_ROMSIZE_KB_4096
140	bool "4096 KB (4 MB)"
141	help
142	  Choose this option if you have a 4096 KB (4 MB) ROM chip.
143
144config UBOOT_ROMSIZE_KB_8192
145	bool "8192 KB (8 MB)"
146	help
147	  Choose this option if you have a 8192 KB (8 MB) ROM chip.
148
149config UBOOT_ROMSIZE_KB_16384
150	bool "16384 KB (16 MB)"
151	help
152	  Choose this option if you have a 16384 KB (16 MB) ROM chip.
153
154endchoice
155
156# Map the config names to an integer (KB).
157config UBOOT_ROMSIZE_KB
158	int
159	default 512 if UBOOT_ROMSIZE_KB_512
160	default 1024 if UBOOT_ROMSIZE_KB_1024
161	default 2048 if UBOOT_ROMSIZE_KB_2048
162	default 4096 if UBOOT_ROMSIZE_KB_4096
163	default 8192 if UBOOT_ROMSIZE_KB_8192
164	default 16384 if UBOOT_ROMSIZE_KB_16384
165
166# Map the config names to a hex value (bytes).
167config ROM_SIZE
168	hex
169	default 0x80000 if UBOOT_ROMSIZE_KB_512
170	default 0x100000 if UBOOT_ROMSIZE_KB_1024
171	default 0x200000 if UBOOT_ROMSIZE_KB_2048
172	default 0x400000 if UBOOT_ROMSIZE_KB_4096
173	default 0x800000 if UBOOT_ROMSIZE_KB_8192
174	default 0xc00000 if UBOOT_ROMSIZE_KB_12288
175	default 0x1000000 if UBOOT_ROMSIZE_KB_16384
176
177config HAVE_INTEL_ME
178	bool "Platform requires Intel Management Engine"
179	help
180	  Newer higher-end devices have an Intel Management Engine (ME)
181	  which is a very large binary blob (typically 1.5MB) which is
182	  required for the platform to work. This enforces a particular
183	  SPI flash format. You will need to supply the me.bin file in
184	  your board directory.
185
186config X86_RAMTEST
187	bool "Perform a simple RAM test after SDRAM initialisation"
188	help
189	  If there is something wrong with SDRAM then the platform will
190	  often crash within U-Boot or the kernel. This option enables a
191	  very simple RAM test that quickly checks whether the SDRAM seems
192	  to work correctly. It is not exhaustive but can save time by
193	  detecting obvious failures.
194
195config HAVE_FSP
196	bool "Add an Firmware Support Package binary"
197	depends on !EFI
198	help
199	  Select this option to add an Firmware Support Package binary to
200	  the resulting U-Boot image. It is a binary blob which U-Boot uses
201	  to set up SDRAM and other chipset specific initialization.
202
203	  Note: Without this binary U-Boot will not be able to set up its
204	  SDRAM so will not boot.
205
206config FSP_FILE
207	string "Firmware Support Package binary filename"
208	depends on HAVE_FSP
209	default "fsp.bin"
210	help
211	  The filename of the file to use as Firmware Support Package binary
212	  in the board directory.
213
214config FSP_ADDR
215	hex "Firmware Support Package binary location"
216	depends on HAVE_FSP
217	default 0xfffc0000
218	help
219	  FSP is not Position Independent Code (PIC) and the whole FSP has to
220	  be rebased if it is placed at a location which is different from the
221	  perferred base address specified during the FSP build. Use Intel's
222	  Binary Configuration Tool (BCT) to do the rebase.
223
224	  The default base address of 0xfffc0000 indicates that the binary must
225	  be located at offset 0xc0000 from the beginning of a 1MB flash device.
226
227config FSP_TEMP_RAM_ADDR
228	hex
229	depends on HAVE_FSP
230	default 0x2000000
231	help
232	  Stack top address which is used in FspInit after DRAM is ready and
233	  CAR is disabled.
234
235config SMP
236	bool "Enable Symmetric Multiprocessing"
237	default n
238	help
239	  Enable use of more than one CPU in U-Boot and the Operating System
240	  when loaded. Each CPU will be started up and information can be
241	  obtained using the 'cpu' command. If this option is disabled, then
242	  only one CPU will be enabled regardless of the number of CPUs
243	  available.
244
245config MAX_CPUS
246	int "Maximum number of CPUs permitted"
247	depends on SMP
248	default 4
249	help
250	  When using multi-CPU chips it is possible for U-Boot to start up
251	  more than one CPU. The stack memory used by all of these CPUs is
252	  pre-allocated so at present U-Boot wants to know the maximum
253	  number of CPUs that may be present. Set this to at least as high
254	  as the number of CPUs in your system (it uses about 4KB of RAM for
255	  each CPU).
256
257config AP_STACK_SIZE
258	hex
259	depends on SMP
260	default 0x1000
261	help
262	  Each additional CPU started by U-Boot requires its own stack. This
263	  option sets the stack size used by each CPU and directly affects
264	  the memory used by this initialisation process. Typically 4KB is
265	  enough space.
266
267config TSC_CALIBRATION_BYPASS
268	bool "Bypass Time-Stamp Counter (TSC) calibration"
269	default n
270	help
271	  By default U-Boot automatically calibrates Time-Stamp Counter (TSC)
272	  running frequency via Model-Specific Register (MSR) and Programmable
273	  Interval Timer (PIT). If the calibration does not work on your board,
274	  select this option and provide a hardcoded TSC running frequency with
275	  CONFIG_TSC_FREQ_IN_MHZ below.
276
277	  Normally this option should be turned on in a simulation environment
278	  like qemu.
279
280config TSC_FREQ_IN_MHZ
281	int "Time-Stamp Counter (TSC) running frequency in MHz"
282	depends on TSC_CALIBRATION_BYPASS
283	default 1000
284	help
285	  The running frequency in MHz of Time-Stamp Counter (TSC).
286
287config HAVE_VGA_BIOS
288	bool "Add a VGA BIOS image"
289	help
290	  Select this option if you have a VGA BIOS image that you would
291	  like to add to your ROM.
292
293config VGA_BIOS_FILE
294	string "VGA BIOS image filename"
295	depends on HAVE_VGA_BIOS
296	default "vga.bin"
297	help
298	  The filename of the VGA BIOS image in the board directory.
299
300config VGA_BIOS_ADDR
301	hex "VGA BIOS image location"
302	depends on HAVE_VGA_BIOS
303	default 0xfff90000
304	help
305	  The location of VGA BIOS image in the SPI flash. For example, base
306	  address of 0xfff90000 indicates that the image will be put at offset
307	  0x90000 from the beginning of a 1MB flash device.
308
309menu "System tables"
310
311config GENERATE_PIRQ_TABLE
312	bool "Generate a PIRQ table"
313	depends on !EFI
314	default n
315	help
316	  Generate a PIRQ routing table for this board. The PIRQ routing table
317	  is generated by U-Boot in the system memory from 0xf0000 to 0xfffff
318	  at every 16-byte boundary with a PCI IRQ routing signature ("$PIR").
319	  It specifies the interrupt router information as well how all the PCI
320	  devices' interrupt pins are wired to PIRQs.
321
322config GENERATE_SFI_TABLE
323	bool "Generate a SFI (Simple Firmware Interface) table"
324	depends on !EFI
325	help
326	  The Simple Firmware Interface (SFI) provides a lightweight method
327	  for platform firmware to pass information to the operating system
328	  via static tables in memory.  Kernel SFI support is required to
329	  boot on SFI-only platforms.  If you have ACPI tables then these are
330	  used instead.
331
332	  U-Boot writes this table in write_sfi_table() just before booting
333	  the OS.
334
335	  For more information, see http://simplefirmware.org
336
337config GENERATE_MP_TABLE
338	bool "Generate an MP (Multi-Processor) table"
339	depends on !EFI
340	default n
341	help
342	  Generate an MP (Multi-Processor) table for this board. The MP table
343	  provides a way for the operating system to support for symmetric
344	  multiprocessing as well as symmetric I/O interrupt handling with
345	  the local APIC and I/O APIC.
346
347endmenu
348
349config MAX_PIRQ_LINKS
350	int
351	default 8
352	help
353	  This variable specifies the number of PIRQ interrupt links which are
354	  routable. On most older chipsets, this is 4, PIRQA through PIRQD.
355	  Some newer chipsets offer more than four links, commonly up to PIRQH.
356
357config IRQ_SLOT_COUNT
358	int
359	default 128
360	help
361	  U-Boot can support up to 254 IRQ slot info in the PIRQ routing table
362	  which in turns forms a table of exact 4KiB. The default value 128
363	  should be enough for most boards. If this does not fit your board,
364	  change it according to your needs.
365
366config PCIE_ECAM_BASE
367	hex
368	default 0xe0000000
369	help
370	  This is the memory-mapped address of PCI configuration space, which
371	  is only available through the Enhanced Configuration Access
372	  Mechanism (ECAM) with PCI Express. It can be set up almost
373	  anywhere. Before it is set up, it is possible to access PCI
374	  configuration space through I/O access, but memory access is more
375	  convenient. Using this, PCI can be scanned and configured. This
376	  should be set to a region that does not conflict with memory
377	  assigned to PCI devices - i.e. the memory and prefetch regions, as
378	  passed to pci_set_region().
379
380config PCIE_ECAM_SIZE
381	hex
382	default 0x10000000
383	help
384	  This is the size of memory-mapped address of PCI configuration space,
385	  which is only available through the Enhanced Configuration Access
386	  Mechanism (ECAM) with PCI Express. Each bus consumes 1 MiB memory,
387	  so a default 0x10000000 size covers all of the 256 buses which is the
388	  maximum number of PCI buses as defined by the PCI specification.
389
390source "arch/x86/lib/efi/Kconfig"
391
392endmenu
393