diff options
Diffstat (limited to 'firmware/target/arm/imx233')
-rw-r--r-- | firmware/target/arm/imx233/crt0.S | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/firmware/target/arm/imx233/crt0.S b/firmware/target/arm/imx233/crt0.S index 4ae083ccb2..ffc58d56fc 100644 --- a/firmware/target/arm/imx233/crt0.S +++ b/firmware/target/arm/imx233/crt0.S | |||
@@ -161,38 +161,6 @@ remap: | |||
161 | 1: | 161 | 1: |
162 | b 1b | 162 | b 1b |
163 | 163 | ||
164 | /* All illegal exceptions call into UIE with exception address as first | ||
165 | * parameter. This is calculated differently depending on which exception | ||
166 | * we're in. Second parameter is exception number, used for a string lookup | ||
167 | * in UIE. */ | ||
168 | undef_instr_handler: | ||
169 | sub r0, lr, #4 @ r0 points to the faulty ARM instruction | ||
170 | #ifdef USE_THUMB | ||
171 | mrs r1, spsr | ||
172 | tst r1, #(1<<5) @ T bit set ? | ||
173 | subne r0, lr, #2 @ if yes, r0 points to the faulty THUMB instruction | ||
174 | #endif /* USE_THUMB */ | ||
175 | mov r1, #0 | ||
176 | b UIE | ||
177 | |||
178 | /* We run sys mode most of the time, and should never see a software | ||
179 | * exception being thrown. Make it illegal and call UIE. */ | ||
180 | software_int_handler: | ||
181 | reserved_handler: | ||
182 | sub r0, lr, #4 | ||
183 | mov r1, #4 | ||
184 | b UIE | ||
185 | |||
186 | prefetch_abort_handler: | ||
187 | sub r0, lr, #4 | ||
188 | mov r1, #1 | ||
189 | b UIE | ||
190 | |||
191 | data_abort_handler: | ||
192 | sub r0, lr, #8 | ||
193 | mov r1, #2 | ||
194 | b UIE | ||
195 | |||
196 | /* 256 words of IRQ stack */ | 164 | /* 256 words of IRQ stack */ |
197 | .space 256*4 | 165 | .space 256*4 |
198 | irq_stack: | 166 | irq_stack: |