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sd-as3525v2: working transfers, still awfully slow

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not touching MCI_CTYPE (leaving bus width to 1) gives data transfers
ignore the hardware locked up while error bit for now
remove printf() helper & debug code

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24838 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-02-22 02:42:46 +00:00
parent 1ae6307a5a
commit a012b185ac
1 changed files with 3 additions and 45 deletions
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48
firmware/target/arm/as3525/sd-as3525v2.c
View file

@ -43,24 +43,6 @@
#include <stdarg.h>
#include "sysfont.h"
/* debug helper */
static int line = 0;
static void printf(const char *format, ...)
{
char buf[50];
int len;
va_list ap;
va_start(ap, format);
len = vsnprintf(buf, sizeof(buf), format, ap);
va_end(ap);
lcd_puts(0, line++, buf);
lcd_update();
if(line >= LCD_HEIGHT/SYSFONT_HEIGHT)
line = 0;
}
/* command flags */
#define MCI_NO_RESP (0<<0)
#define MCI_RESP (1<<0)
@ -378,8 +360,6 @@ static int sd_init_card(void)
if(!send_cmd(SD_SET_BUS_WIDTH, card_info.rca | 2, MCI_NO_RESP, NULL))
return -11;
MCI_CTYPE = (1<<0); /* Bus width = 4 */
if(!send_cmd(SD_SELECT_CARD, card_info.rca, MCI_NO_RESP, NULL))
return -9;
@ -555,21 +535,6 @@ static int sd_wait_for_state(unsigned int state)
static int sd_transfer_sectors(unsigned long start, int count, void* buf, bool write)
{
#if 1
/* This is debug code, not functional yet */
line = 0;
lcd_clear_display();
printf("Entering SD transfer");
printf("THIS IS DEBUG CODE !");
printf("");
printf("All your controllers");
printf("are belong to us.");
volatile int delay = 0x500000;
while(delay--) ;
line = 0;
lcd_clear_display();
#endif /* debug warning */
int ret = 0;
if((int)buf & 3)
@ -616,8 +581,8 @@ static int sd_transfer_sectors(unsigned long start, int count, void* buf, bool w
do
{
MCI_BLKSIZ = 512;
MCI_BYTCNT = count * 512;
MCI_BLKSIZ = SD_BLOCK_SIZE;
MCI_BYTCNT = count * SD_BLOCK_SIZE;
MCI_CTRL |= (FIFO_RESET|DMA_RESET);
while(MCI_CTRL & (FIFO_RESET|DMA_RESET))
@ -625,7 +590,7 @@ static int sd_transfer_sectors(unsigned long start, int count, void* buf, bool w
MCI_CTRL |= DMA_ENABLE;
MCI_MASK = MCI_INT_CD|MCI_INT_DTO|MCI_INT_DCRC|MCI_INT_DRTO| \
MCI_INT_HTO|MCI_INT_FRUN|MCI_INT_HLE|MCI_INT_SBE|MCI_INT_EBE;
MCI_INT_HTO|MCI_INT_FRUN|/*MCI_INT_HLE|*/MCI_INT_SBE|MCI_INT_EBE;
MCI_FIFOTH &= MCI_FIFOTH_MASK;
MCI_FIFOTH |= 0x503f0080;
@ -647,15 +612,8 @@ static int sd_transfer_sectors(unsigned long start, int count, void* buf, bool w
dma_enable_channel(0, MCI_FIFO, buf, DMA_PERI_SD,
DMAC_FLOWCTRL_PERI_PERI_TO_MEM, false, true, 0, DMA_S8, NULL);
line = 0;
lcd_clear_display();
printf("dma ->");
wakeup_wait(&transfer_completion_signal, TIMEOUT_BLOCK);
printf("dma <-");
int delay = 0x1000000; while(delay--) ;
last_disk_activity = current_tick;
if(!send_cmd(SD_STOP_TRANSMISSION, 0, MCI_NO_RESP, NULL))