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removed unused inline assembly

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This commit is contained in:
Markus Fröschle
2012-12-14 15:26:47 +00:00
parent 611fed8272
commit 73d3b0cb80
3 changed files with 16 additions and 37 deletions
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1
BaS_gcc/include/sd_card.h
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@@ -31,6 +31,7 @@
#define _SD_CARD_H_ #define _SD_CARD_H_
#include <MCF5475.h> #include <MCF5475.h>
#include <stdint.h>
extern int spi_init(void); extern int spi_init(void);
extern uint32_t sd_com(uint32_t data); extern uint32_t sd_com(uint32_t data);

1
BaS_gcc/sources/BaS.c
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@@ -183,7 +183,6 @@ void BaS(void)
pic_init(); pic_init();
nvram_init(); nvram_init();
disk_initialize(0); disk_initialize(0);
res = disk_status(0); res = disk_status(0);
xprintf("disk status of SD card is %d\r\n", res); xprintf("disk status of SD card is %d\r\n", res);

51
BaS_gcc/sources/sd_card.c
View File

@@ -41,38 +41,6 @@ const uint32_t DSPI_DMCR_CONF = MCF_DSPI_DMCR_MSTR | /* FireBee is DSPI master*/
MCF_DSPI_DMCR_CRXF; /* clear receive FIFO */ MCF_DSPI_DMCR_CRXF; /* clear receive FIFO */
/* 0x800d3c00 */ /* 0x800d3c00 */
#ifdef _NOT_USED_ /* disabled assembler routines */
void sd_card_idle(void)
{
__asm__ __volatile__ (
".extern sd_idle\n\t"
"bsr sd_idle\n\t"
/* output */:
/* input */ :
/* clobber */: "a0","a1","a2","a3","a4","a5",
"d0","d1","d2","d3","d4","d5","d6","d7","memory"
);
}
int spi_init(void)
{
register int ret __asm__("d0");
__asm__ __volatile__ (
".extern sd_init\n\t"
"bsr.l sd_init\n\t"
/* output */: "=r" (ret)
/* input */ :
/* clobber */: "a0","a1","a2","a3","a4","a5",
"d1","d2","d3","d4","d5","d6","d7","memory"
);
return ret;
}
#endif /* _NOT_USED_ */
/* /*
* Write data to the DSPI TX FIFO register * Write data to the DSPI TX FIFO register
@@ -101,20 +69,31 @@ uint32_t spi_command(uint32_t data)
#define MCF_DSPI_DTFR_BYTE _MBAR[0x8a37] #define MCF_DSPI_DTFR_BYTE _MBAR[0x8a37]
inline uint8_t spi_send_byte(uint8_t byte) inline uint8_t spi_send_byte(uint8_t byte)
{ {
uint8_t ret;
MCF_DSPI_DTFR_BYTE = byte; MCF_DSPI_DTFR_BYTE = byte;
return MCF_DSPI_DTFR_BYTE; while (! (MCF_DSPI_DSR & MCF_DSPI_DSR_TCF)); /* wait until DSPI transfer complete */
ret = MCF_DSPI_DTFR_BYTE;
MCF_DSPI_DSR = 0xffffffff;
return ret;
} }
/* /*
* as above, but word sized * as above, but word sized
*/ */
#define MCF_DSPI_DTFR_WORD _MBAR[0x8ad6] #define MCF_DSPI_DTFR_WORD * (uint16_t *) &_MBAR[0x8ad6]
inline uint16_t spi_send_word(uint16_t word) inline uint16_t spi_send_word(uint16_t word)
{ {
uint16_t ret;
MCF_DSPI_DTFR_WORD = word; MCF_DSPI_DTFR_WORD = word;
return MCF_DSPI_DTFR_WORD; ret = MCF_DSPI_DTFR_WORD;
MCF_DSPI_DSR = 0xffffffff;
return ret;
} }
int spi_init(void) int spi_init(void)
@@ -125,7 +104,7 @@ int spi_init(void)
xprintf("SD-Card initialization: "); xprintf("SD-Card initialization: ");
MCF_PAD_PAR_DSPI = 0x1fff; /* configure all DSPI GPIO pins for DSPI usage */ MCF_PAD_PAR_DSPI = 0x1fff; /* configure all DSPI GPIO pins for DSPI usage */
MCF_PAD_PAR_TIMER = 0xff; /* MCF_PAD_PAR_TIMER = 0xff; /*
* FIXME: really necessary or just an oversight * FIXME: really necessary or just an oversight
* that PAD_PAR_DSPI is only 16 bit? * that PAD_PAR_DSPI is only 16 bit?