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| author | Megan Wachs <megan@sifive.com> | 2017-05-04 05:50:00 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-05-04 05:49:59 -0700 |
| commit | 5b2498467020616de013fd557b6a1e685544ee18 (patch) | |
| tree | bb197ca9ef8f9265a79485f3a13e4e921a0ff93b /software/double_tap_dontboot/double_tap_dontboot.c | |
| parent | 3a01ac1b7c0e72c04679f0cd6552c4ff0b308863 (diff) | |
| parent | 4d5cbec9118cbedf2d4ae5b54acaa22862245a4c (diff) | |
Merge pull request #54 from sifive/tag_v20170504
Update SDK For E31/E51 Coreplex IP Evaluation
Diffstat (limited to 'software/double_tap_dontboot/double_tap_dontboot.c')
| -rw-r--r-- | software/double_tap_dontboot/double_tap_dontboot.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/software/double_tap_dontboot/double_tap_dontboot.c b/software/double_tap_dontboot/double_tap_dontboot.c index 0cae5b5..53c2c64 100644 --- a/software/double_tap_dontboot/double_tap_dontboot.c +++ b/software/double_tap_dontboot/double_tap_dontboot.c @@ -42,6 +42,11 @@ #include "platform.h" #include "encoding.h" +#ifndef _SIFIVE_HIFIVE1_H +#error "double_tap_dontboot is designed to run on HiFive1 and/or E300 Arty Dev Kit." +#endif + + #define BACKUP15_MAGIC 0xD027B007 #define FINAL_ADDRESS 0x20400000 @@ -97,9 +102,9 @@ int main(void) // because it makes it clear that the processor is actually // running this code, not just the PWM hardware. - now = *((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)); + now = *((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)); then = now + 32768/500; - while (*((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)) < then) { + while (*((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)) < then) { asm volatile (""); } pwm_val = (pwm_val == 0) ? 255 : (pwm_val -1); @@ -121,9 +126,9 @@ int main(void) // Wait 500 ms. If reset is tapped at this point, // we will execute the "magic" loop above. - now = *((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)); + now = *((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)); then = now + 32768/2; - while (*((volatile uint64_t*) (CLINT_BASE_ADDR + CLINT_MTIME)) < then) { + while (*((volatile uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME)) < then) { asm volatile (""); } |