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