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added missing memory barrier to asm statements - BaS crashed with compiler optimizations

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Markus Fröschle
2013-12-30 23:59:07 +00:00
parent a6543b6b0a
commit 3e884359dc
1 changed files with 2 additions and 2 deletions
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4
pci/pci.c
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@@ -43,7 +43,7 @@
#if MACHINE_FIREBEE
#define pci_config_wait() wait(40000); /* FireBee USB not properly detected otherwise !?? */
#elif MACHINE_M5484LITE
#define pci_config_wait() do { __asm__ __volatile("tpf" :::); } while (0)
#define pci_config_wait() do { __asm__ __volatile("tpf" ::: "memory"); } while (0)
#endif
/*
@@ -130,7 +130,7 @@ __attribute__((aligned(16))) void chip_errata_135(void)
" tpf.l #0x0\n\t"
" tpf.l #0x0\n\t"
" tpf.l #0x0\n\t"
:::);
::: "memory");
}