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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 |
c66af411 | 10 | select GENERIC_ATOMIC64 |
3b190a4a | 11 | select HAVE_GENERIC_HARDIRQS |
47a5d9dc | 12 | select GENERIC_IRQ_SHOW |
9f13a1fd | 13 | select GENERIC_CPU_DEVICES |
d38efc1f MF |
14 | select MODULES_USE_ELF_RELA |
15 | select GENERIC_PCI_IOMAP | |
3306a726 | 16 | select GENERIC_KERNEL_THREAD |
f0a1bf08 | 17 | select GENERIC_KERNEL_EXECVE |
6ed65f37 | 18 | select ARCH_WANT_OPTIONAL_GPIOLIB |
3e41f9ba | 19 | select CLONE_BACKWARDS |
8e1a6dd2 CZ |
20 | help |
21 | Xtensa processors are 32-bit RISC machines designed by Tensilica | |
22 | primarily for embedded systems. These processors are both | |
23 | configurable and extensible. The Linux port to the Xtensa | |
24 | architecture supports all processor configurations and extensions, | |
25 | with reasonable minimum requirements. The Xtensa Linux project has | |
26 | a home page at <http://xtensa.sourceforge.net/>. | |
27 | ||
8e1a6dd2 | 28 | config RWSEM_XCHGADD_ALGORITHM |
35f9cd08 | 29 | def_bool y |
8e1a6dd2 | 30 | |
d4337aa5 | 31 | config GENERIC_HWEIGHT |
35f9cd08 | 32 | def_bool y |
d4337aa5 | 33 | |
000af2c5 JW |
34 | config GENERIC_GPIO |
35 | def_bool y | |
36 | ||
f0d1b0b3 | 37 | config ARCH_HAS_ILOG2_U32 |
35f9cd08 | 38 | def_bool n |
f0d1b0b3 DH |
39 | |
40 | config ARCH_HAS_ILOG2_U64 | |
35f9cd08 | 41 | def_bool n |
f0d1b0b3 | 42 | |
5ea81769 | 43 | config NO_IOPORT |
d046f77e | 44 | def_bool n |
5ea81769 | 45 | |
bdc80787 PA |
46 | config HZ |
47 | int | |
48 | default 100 | |
49 | ||
8e1a6dd2 | 50 | source "init/Kconfig" |
dc52ddc0 | 51 | source "kernel/Kconfig.freezer" |
8e1a6dd2 | 52 | |
35f9cd08 JW |
53 | config MMU |
54 | def_bool n | |
55 | ||
4c0d2141 JW |
56 | config VARIANT_IRQ_SWITCH |
57 | def_bool n | |
58 | ||
8e1a6dd2 CZ |
59 | menu "Processor type and features" |
60 | ||
61 | choice | |
62 | prompt "Xtensa Processor Configuration" | |
173d6681 | 63 | default XTENSA_VARIANT_FSF |
8e1a6dd2 | 64 | |
173d6681 | 65 | config XTENSA_VARIANT_FSF |
0025427e | 66 | bool "fsf - default (not generic) configuration" |
35f9cd08 | 67 | select MMU |
0025427e CZ |
68 | |
69 | config XTENSA_VARIANT_DC232B | |
70 | bool "dc232b - Diamond 232L Standard Core Rev.B (LE)" | |
35f9cd08 | 71 | select MMU |
0025427e | 72 | help |
35f9cd08 | 73 | This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE). |
000af2c5 JW |
74 | |
75 | config XTENSA_VARIANT_S6000 | |
76 | bool "s6000 - Stretch software configurable processor" | |
77 | select VARIANT_IRQ_SWITCH | |
78 | select ARCH_REQUIRE_GPIOLIB | |
b070a03f | 79 | select XTENSA_CALIBRATE_CCOUNT |
8e1a6dd2 CZ |
80 | endchoice |
81 | ||
8e1a6dd2 CZ |
82 | config XTENSA_UNALIGNED_USER |
83 | bool "Unaligned memory access in use space" | |
35f9cd08 JW |
84 | help |
85 | The Xtensa architecture currently does not handle unaligned | |
86 | memory accesses in hardware but through an exception handler. | |
87 | Per default, unaligned memory accesses are disabled in user space. | |
8e1a6dd2 | 88 | |
35f9cd08 | 89 | Say Y here to enable unaligned memory access in user space. |
8e1a6dd2 | 90 | |
bd96efe1 | 91 | source "kernel/Kconfig.preempt" |
8e1a6dd2 CZ |
92 | |
93 | config MATH_EMULATION | |
94 | bool "Math emulation" | |
95 | help | |
96 | Can we use information of configuration file? | |
97 | ||
8e1a6dd2 CZ |
98 | endmenu |
99 | ||
35f9cd08 JW |
100 | config XTENSA_CALIBRATE_CCOUNT |
101 | def_bool n | |
102 | help | |
103 | On some platforms (XT2000, for example), the CPU clock rate can | |
104 | vary. The frequency can be determined, however, by measuring | |
105 | against a well known, fixed frequency, such as an UART oscillator. | |
106 | ||
107 | config SERIAL_CONSOLE | |
108 | def_bool n | |
109 | ||
110 | config XTENSA_ISS_NETWORK | |
111 | def_bool n | |
112 | ||
113 | menu "Bus options" | |
114 | ||
115 | config PCI | |
116 | bool "PCI support" | |
117 | default y | |
118 | help | |
119 | Find out whether you have a PCI motherboard. PCI is the name of a | |
120 | bus system, i.e. the way the CPU talks to the other stuff inside | |
121 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or | |
122 | VESA. If you have PCI, say Y, otherwise N. | |
123 | ||
124 | source "drivers/pci/Kconfig" | |
125 | ||
35e71f90 CZ |
126 | endmenu |
127 | ||
8e1a6dd2 CZ |
128 | menu "Platform options" |
129 | ||
130 | choice | |
131 | prompt "Xtensa System Type" | |
132 | default XTENSA_PLATFORM_ISS | |
133 | ||
134 | config XTENSA_PLATFORM_ISS | |
135 | bool "ISS" | |
35f9cd08 JW |
136 | select XTENSA_CALIBRATE_CCOUNT |
137 | select SERIAL_CONSOLE | |
138 | select XTENSA_ISS_NETWORK | |
8e1a6dd2 CZ |
139 | help |
140 | ISS is an acronym for Tensilica's Instruction Set Simulator. | |
141 | ||
142 | config XTENSA_PLATFORM_XT2000 | |
143 | bool "XT2000" | |
144 | help | |
145 | XT2000 is the name of Tensilica's feature-rich emulation platform. | |
146 | This hardware is capable of running a full Linux distribution. | |
147 | ||
f82e939f JW |
148 | config XTENSA_PLATFORM_S6105 |
149 | bool "S6105" | |
150 | select SERIAL_CONSOLE | |
d046f77e | 151 | select NO_IOPORT |
f82e939f | 152 | |
8e1a6dd2 CZ |
153 | endchoice |
154 | ||
155 | ||
8e1a6dd2 CZ |
156 | config XTENSA_CPU_CLOCK |
157 | int "CPU clock rate [MHz]" | |
158 | depends on !XTENSA_CALIBRATE_CCOUNT | |
35f9cd08 | 159 | default 16 |
8e1a6dd2 CZ |
160 | |
161 | config GENERIC_CALIBRATE_DELAY | |
162 | bool "Auto calibration of the BogoMIPS value" | |
35f9cd08 | 163 | help |
82300bf4 | 164 | The BogoMIPS value can easily be derived from the CPU frequency. |
8e1a6dd2 CZ |
165 | |
166 | config CMDLINE_BOOL | |
167 | bool "Default bootloader kernel arguments" | |
168 | ||
169 | config CMDLINE | |
170 | string "Initial kernel command string" | |
171 | depends on CMDLINE_BOOL | |
172 | default "console=ttyS0,38400 root=/dev/ram" | |
173 | help | |
174 | On some architectures (EBSA110 and CATS), there is currently no way | |
175 | for the boot loader to pass arguments to the kernel. For these | |
176 | architectures, you should supply some command-line options at build | |
177 | time by entering them here. As a minimum, you should specify the | |
178 | memory size and the root device (e.g., mem=64M root=/dev/nfs). | |
179 | ||
82300bf4 CZ |
180 | source "mm/Kconfig" |
181 | ||
8e1a6dd2 CZ |
182 | source "drivers/pcmcia/Kconfig" |
183 | ||
184 | source "drivers/pci/hotplug/Kconfig" | |
185 | ||
186 | endmenu | |
187 | ||
cab00891 | 188 | menu "Executable file formats" |
8e1a6dd2 CZ |
189 | |
190 | # only elf supported | |
191 | config KCORE_ELF | |
35f9cd08 | 192 | def_bool y |
8e1a6dd2 | 193 | depends on PROC_FS |
8e1a6dd2 CZ |
194 | help |
195 | If you enabled support for /proc file system then the file | |
196 | /proc/kcore will contain the kernel core image in ELF format. This | |
197 | can be used in gdb: | |
198 | ||
199 | $ cd /usr/src/linux ; gdb vmlinux /proc/kcore | |
200 | ||
201 | This is especially useful if you have compiled the kernel with the | |
202 | "-g" option to preserve debugging information. It is mainly used | |
203 | for examining kernel data structures on the live kernel. | |
204 | ||
205 | source "fs/Kconfig.binfmt" | |
206 | ||
207 | endmenu | |
208 | ||
d5950b43 SR |
209 | source "net/Kconfig" |
210 | ||
8e1a6dd2 CZ |
211 | source "drivers/Kconfig" |
212 | ||
213 | source "fs/Kconfig" | |
214 | ||
8e1a6dd2 CZ |
215 | source "arch/xtensa/Kconfig.debug" |
216 | ||
217 | source "security/Kconfig" | |
218 | ||
219 | source "crypto/Kconfig" | |
220 | ||
221 | source "lib/Kconfig" | |
222 | ||
223 |