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