Revert the DSB because of RISC-V

Okarss · Okarss · commit fb6a6acbff81 · 2024-06-14T18:39:48.000+03:00
diff --git a/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c b/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
@@ -216,19 +216,19 @@ void dcd_init(uint8_t rhport)
    * Here, the RM is followed. */
 
   for (volatile uint32_t i = 0; i < 200; i++) { // should be a few us
-    __DSB();
+    asm("NOP");
   }
   // Perform USB peripheral reset
   USB->CNTR = USB_CNTR_FRES | USB_CNTR_PDWN;
   for (volatile uint32_t i = 0; i < 200; i++) { // should be a few us
-    __DSB();
+    asm("NOP");
   }
 
   USB->CNTR &= ~USB_CNTR_PDWN;
 
   // Wait startup time, for F042 and F070, this is <= 1 us.
   for (volatile uint32_t i = 0; i < 200; i++) { // should be a few us
-    __DSB();
+    asm("NOP");
   }
   USB->CNTR = 0; // Enable USB
 

Original file line number	Diff line number	Diff line change
`@@ -216,19 +216,19 @@ void dcd_init(uint8_t rhport)`
`216`	`216`	`* Here, the RM is followed. */`
`217`	`217`
`218`	`218`	`for (volatile uint32_t i = 0; i < 200; i++) { // should be a few us`
`219`		`- __DSB();`
	`219`	`+ asm("NOP");`
`220`	`220`	`}`
`221`	`221`	`// Perform USB peripheral reset`
`222`	`222`	`USB->CNTR = USB_CNTR_FRES \| USB_CNTR_PDWN;`
`223`	`223`	`for (volatile uint32_t i = 0; i < 200; i++) { // should be a few us`
`224`		`- __DSB();`
	`224`	`+ asm("NOP");`
`225`	`225`	`}`
`226`	`226`
`227`	`227`	`USB->CNTR &= ~USB_CNTR_PDWN;`
`228`	`228`
`229`	`229`	`// Wait startup time, for F042 and F070, this is <= 1 us.`
`230`	`230`	`for (volatile uint32_t i = 0; i < 200; i++) { // should be a few us`
`231`		`- __DSB();`
	`231`	`+ asm("NOP");`
`232`	`232`	`}`
`233`	`233`	`USB->CNTR = 0; // Enable USB`
`234`	`234`