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bsp/gen5200: Use busy wait

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The usage of rtems_task_wake_after() is invalid during the
driver initialization.
This commit is contained in:
Sebastian Huber
2013-03-28 09:25:07 +01:00
parent d1e1df686c
commit aa11df6e89
2 changed files with 6 additions and 3 deletions
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7
c/src/lib/libbsp/powerpc/gen5200/ide/ata.c
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@@ -19,6 +19,8 @@
#include <bsp.h> #include <bsp.h>
#include <bsp/mpc5200.h> #include <bsp/mpc5200.h>
#include <libcpu/powerpc-utility.h>
bool ata_execute_io_command(uint8_t command, uint32_t lba, uint32_t sector_count_32) bool ata_execute_io_command(uint8_t command, uint32_t lba, uint32_t sector_count_32)
{ {
assert(sector_count_32 >= 1); assert(sector_count_32 >= 1);
@@ -68,10 +70,11 @@ bool ata_execute_io_command(uint8_t command, uint32_t lba, uint32_t sector_count
void ata_reset_device(void) void ata_reset_device(void)
{ {
/* ATA/ATAPI-7 V2, 11.2 Software reset protocol */
ATA->write.control = DCTRL_SRST; ATA->write.control = DCTRL_SRST;
rtems_task_wake_after(1); rtems_bsp_delay(5);
ATA->write.control = 0; ATA->write.control = 0;
rtems_task_wake_after(RTEMS_MILLISECONDS_TO_TICKS(2)); rtems_bsp_delay(2000);
ata_wait_for_not_busy(); ata_wait_for_not_busy();
} }

2
c/src/lib/libbsp/powerpc/gen5200/include/ata.h
View File

@@ -176,7 +176,7 @@ static inline void ata_flush_sector(uint16_t *begin)
rtems_cache_flush_multiple_data_lines(begin, ATA_SECTOR_SIZE); rtems_cache_flush_multiple_data_lines(begin, ATA_SECTOR_SIZE);
} }
void ata_reset_device(); void ata_reset_device(void);
bool ata_set_transfer_mode(uint8_t mode); bool ata_set_transfer_mode(uint8_t mode);