Commit | Line | Data |
---|---|---|
8e1a6dd2 | 1 | config FRAME_POINTER |
35f9cd08 | 2 | def_bool n |
8e1a6dd2 | 3 | |
66701b14 | 4 | config ZONE_DMA |
35f9cd08 | 5 | def_bool y |
66701b14 | 6 | |
8e1a6dd2 | 7 | config XTENSA |
35f9cd08 | 8 | def_bool y |
ec7748b5 | 9 | select HAVE_IDE |
3b190a4a | 10 | select HAVE_GENERIC_HARDIRQS |
47a5d9dc | 11 | select GENERIC_IRQ_SHOW |
9f13a1fd | 12 | select GENERIC_CPU_DEVICES |
8e1a6dd2 CZ |
13 | help |
14 | Xtensa processors are 32-bit RISC machines designed by Tensilica | |
15 | primarily for embedded systems. These processors are both | |
16 | configurable and extensible. The Linux port to the Xtensa | |
17 | architecture supports all processor configurations and extensions, | |
18 | with reasonable minimum requirements. The Xtensa Linux project has | |
19 | a home page at <http://xtensa.sourceforge.net/>. | |
20 | ||
8e1a6dd2 | 21 | config RWSEM_XCHGADD_ALGORITHM |
35f9cd08 | 22 | def_bool y |
8e1a6dd2 | 23 | |
d4337aa5 | 24 | config GENERIC_HWEIGHT |
35f9cd08 | 25 | def_bool y |
d4337aa5 | 26 | |
000af2c5 JW |
27 | config GENERIC_GPIO |
28 | def_bool y | |
29 | ||
f0d1b0b3 | 30 | config ARCH_HAS_ILOG2_U32 |
35f9cd08 | 31 | def_bool n |
f0d1b0b3 DH |
32 | |
33 | config ARCH_HAS_ILOG2_U64 | |
35f9cd08 | 34 | def_bool n |
f0d1b0b3 | 35 | |
5ea81769 AV |
36 | config NO_IOPORT |
37 | def_bool y | |
38 | ||
bdc80787 PA |
39 | config HZ |
40 | int | |
41 | default 100 | |
42 | ||
8e1a6dd2 | 43 | source "init/Kconfig" |
dc52ddc0 | 44 | source "kernel/Kconfig.freezer" |
8e1a6dd2 | 45 | |
35f9cd08 JW |
46 | config MMU |
47 | def_bool n | |
48 | ||
4c0d2141 JW |
49 | config VARIANT_IRQ_SWITCH |
50 | def_bool n | |
51 | ||
8e1a6dd2 CZ |
52 | menu "Processor type and features" |
53 | ||
54 | choice | |
55 | prompt "Xtensa Processor Configuration" | |
173d6681 | 56 | default XTENSA_VARIANT_FSF |
8e1a6dd2 | 57 | |
173d6681 | 58 | config XTENSA_VARIANT_FSF |
0025427e | 59 | bool "fsf - default (not generic) configuration" |
35f9cd08 | 60 | select MMU |
0025427e CZ |
61 | |
62 | config XTENSA_VARIANT_DC232B | |
63 | bool "dc232b - Diamond 232L Standard Core Rev.B (LE)" | |
35f9cd08 | 64 | select MMU |
0025427e | 65 | help |
35f9cd08 | 66 | This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE). |
000af2c5 JW |
67 | |
68 | config XTENSA_VARIANT_S6000 | |
69 | bool "s6000 - Stretch software configurable processor" | |
70 | select VARIANT_IRQ_SWITCH | |
71 | select ARCH_REQUIRE_GPIOLIB | |
b070a03f | 72 | select XTENSA_CALIBRATE_CCOUNT |
8e1a6dd2 CZ |
73 | endchoice |
74 | ||
8e1a6dd2 CZ |
75 | config XTENSA_UNALIGNED_USER |
76 | bool "Unaligned memory access in use space" | |
35f9cd08 JW |
77 | help |
78 | The Xtensa architecture currently does not handle unaligned | |
79 | memory accesses in hardware but through an exception handler. | |
80 | Per default, unaligned memory accesses are disabled in user space. | |
8e1a6dd2 | 81 | |
35f9cd08 | 82 | Say Y here to enable unaligned memory access in user space. |
8e1a6dd2 | 83 | |
bd96efe1 | 84 | source "kernel/Kconfig.preempt" |
8e1a6dd2 CZ |
85 | |
86 | config MATH_EMULATION | |
87 | bool "Math emulation" | |
88 | help | |
89 | Can we use information of configuration file? | |
90 | ||
8e1a6dd2 CZ |
91 | endmenu |
92 | ||
35f9cd08 JW |
93 | config XTENSA_CALIBRATE_CCOUNT |
94 | def_bool n | |
95 | help | |
96 | On some platforms (XT2000, for example), the CPU clock rate can | |
97 | vary. The frequency can be determined, however, by measuring | |
98 | against a well known, fixed frequency, such as an UART oscillator. | |
99 | ||
100 | config SERIAL_CONSOLE | |
101 | def_bool n | |
102 | ||
103 | config XTENSA_ISS_NETWORK | |
104 | def_bool n | |
105 | ||
106 | menu "Bus options" | |
107 | ||
108 | config PCI | |
109 | bool "PCI support" | |
110 | default y | |
111 | help | |
112 | Find out whether you have a PCI motherboard. PCI is the name of a | |
113 | bus system, i.e. the way the CPU talks to the other stuff inside | |
114 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
115 | VESA. If you have PCI, say Y, otherwise N. | |
116 | ||
117 | source "drivers/pci/Kconfig" | |
118 | ||
35e71f90 CZ |
119 | endmenu |
120 | ||
8e1a6dd2 CZ |
121 | menu "Platform options" |
122 | ||
123 | choice | |
124 | prompt "Xtensa System Type" | |
125 | default XTENSA_PLATFORM_ISS | |
126 | ||
127 | config XTENSA_PLATFORM_ISS | |
128 | bool "ISS" | |
35f9cd08 JW |
129 | select XTENSA_CALIBRATE_CCOUNT |
130 | select SERIAL_CONSOLE | |
131 | select XTENSA_ISS_NETWORK | |
8e1a6dd2 CZ |
132 | help |
133 | ISS is an acronym for Tensilica's Instruction Set Simulator. | |
134 | ||
135 | config XTENSA_PLATFORM_XT2000 | |
136 | bool "XT2000" | |
137 | help | |
138 | XT2000 is the name of Tensilica's feature-rich emulation platform. | |
139 | This hardware is capable of running a full Linux distribution. | |
140 | ||
f82e939f JW |
141 | config XTENSA_PLATFORM_S6105 |
142 | bool "S6105" | |
143 | select SERIAL_CONSOLE | |
144 | ||
8e1a6dd2 CZ |
145 | endchoice |
146 | ||
147 | ||
8e1a6dd2 CZ |
148 | config XTENSA_CPU_CLOCK |
149 | int "CPU clock rate [MHz]" | |
150 | depends on !XTENSA_CALIBRATE_CCOUNT | |
35f9cd08 | 151 | default 16 |
8e1a6dd2 CZ |
152 | |
153 | config GENERIC_CALIBRATE_DELAY | |
154 | bool "Auto calibration of the BogoMIPS value" | |
35f9cd08 | 155 | help |
82300bf4 | 156 | The BogoMIPS value can easily be derived from the CPU frequency. |
8e1a6dd2 CZ |
157 | |
158 | config CMDLINE_BOOL | |
159 | bool "Default bootloader kernel arguments" | |
160 | ||
161 | config CMDLINE | |
162 | string "Initial kernel command string" | |
163 | depends on CMDLINE_BOOL | |
164 | default "console=ttyS0,38400 root=/dev/ram" | |
165 | help | |
166 | On some architectures (EBSA110 and CATS), there is currently no way | |
167 | for the boot loader to pass arguments to the kernel. For these | |
168 | architectures, you should supply some command-line options at build | |
169 | time by entering them here. As a minimum, you should specify the | |
170 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
171 | ||
82300bf4 CZ |
172 | source "mm/Kconfig" |
173 | ||
35f9cd08 JW |
174 | config HOTPLUG |
175 | bool "Support for hot-pluggable devices" | |
8e1a6dd2 | 176 | help |
35f9cd08 JW |
177 | Say Y here if you want to plug devices into your computer while |
178 | the system is running, and be able to use them quickly. In many | |
179 | cases, the devices can likewise be unplugged at any time too. | |
8e1a6dd2 | 180 | |
35f9cd08 JW |
181 | One well known example of this is PCMCIA- or PC-cards, credit-card |
182 | size devices such as network cards, modems or hard drives which are | |
183 | plugged into slots found on all modern laptop computers. Another | |
184 | example, used on modern desktops as well as laptops, is USB. | |
8e1a6dd2 | 185 | |
35f9cd08 JW |
186 | Enable HOTPLUG and build a modular kernel. Get agent software |
187 | (from <http://linux-hotplug.sourceforge.net/>) and install it. | |
188 | Then your kernel will automatically call out to a user mode "policy | |
189 | agent" (/sbin/hotplug) to load modules and set up software needed | |
190 | to use devices as you hotplug them. | |
8e1a6dd2 CZ |
191 | |
192 | source "drivers/pcmcia/Kconfig" | |
193 | ||
194 | source "drivers/pci/hotplug/Kconfig" | |
195 | ||
196 | endmenu | |
197 | ||
cab00891 | 198 | menu "Executable file formats" |
8e1a6dd2 CZ |
199 | |
200 | # only elf supported | |
201 | config KCORE_ELF | |
35f9cd08 | 202 | def_bool y |
8e1a6dd2 | 203 | depends on PROC_FS |
8e1a6dd2 CZ |
204 | help |
205 | If you enabled support for /proc file system then the file | |
206 | /proc/kcore will contain the kernel core image in ELF format. This | |
207 | can be used in gdb: | |
208 | ||
209 | $ cd /usr/src/linux ; gdb vmlinux /proc/kcore | |
210 | ||
211 | This is especially useful if you have compiled the kernel with the | |
212 | "-g" option to preserve debugging information. It is mainly used | |
213 | for examining kernel data structures on the live kernel. | |
214 | ||
215 | source "fs/Kconfig.binfmt" | |
216 | ||
217 | endmenu | |
218 | ||
d5950b43 SR |
219 | source "net/Kconfig" |
220 | ||
8e1a6dd2 CZ |
221 | source "drivers/Kconfig" |
222 | ||
223 | source "fs/Kconfig" | |
224 | ||
225 | menu "Xtensa initrd options" | |
226 | depends on BLK_DEV_INITRD | |
227 | ||
35f9cd08 | 228 | config EMBEDDED_RAMDISK |
8e1a6dd2 CZ |
229 | bool "Embed root filesystem ramdisk into the kernel" |
230 | ||
231 | config EMBEDDED_RAMDISK_IMAGE | |
cab00891 | 232 | string "Filename of gzipped ramdisk image" |
8e1a6dd2 CZ |
233 | depends on EMBEDDED_RAMDISK |
234 | default "ramdisk.gz" | |
235 | help | |
236 | This is the filename of the ramdisk image to be built into the | |
237 | kernel. Relative pathnames are relative to arch/xtensa/boot/ramdisk/. | |
238 | The ramdisk image is not part of the kernel distribution; you must | |
239 | provide one yourself. | |
240 | endmenu | |
241 | ||
242 | source "arch/xtensa/Kconfig.debug" | |
243 | ||
244 | source "security/Kconfig" | |
245 | ||
246 | source "crypto/Kconfig" | |
247 | ||
248 | source "lib/Kconfig" | |
249 | ||
250 |