devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

sd-as3525v2: do not reverse 2 times long responses, read them directly in the needed order

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25184 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-03-14 21:38:36 +00:00
parent 291e2b1ae6
commit db7aedf93a
1 changed files with 6 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

23
firmware/target/arm/as3525/sd-as3525v2.c
View file

@ -382,14 +382,11 @@ static bool send_cmd(const int cmd, const int arg, const int flags,
if(flags & MCI_LONG_RESP)
{
/* store the response in little endian order for the words */
response[0] = MCI_RESP3;
response[1] = MCI_RESP2;
response[2] = MCI_RESP1;
response[3] = MCI_RESP0;
response[3] = MCI_RESP3;
response[2] = MCI_RESP2;
response[1] = MCI_RESP1;
}
else
response[0] = MCI_RESP0;
response[0] = MCI_RESP0;
}
return true;
}
@ -397,10 +394,8 @@ static bool send_cmd(const int cmd, const int arg, const int flags,
static int sd_init_card(void)
{
unsigned long response;
unsigned long temp_reg[4];
long init_timeout;
bool sd_v2 = false;
int i;
/* assume 24 MHz clock / 60 = 400 kHz */
MCI_CLKDIV = (MCI_CLKDIV & ~(0xFF)) | 0x3C; /* CLK_DIV_0 : bits 7:0 */
@ -437,12 +432,9 @@ static int sd_init_card(void)
} while(!(card_info.ocr & (1<<31)) );
/* CMD2 send CID */
if(!send_cmd(SD_ALL_SEND_CID, 0, MCI_RESP|MCI_LONG_RESP, temp_reg))
if(!send_cmd(SD_ALL_SEND_CID, 0, MCI_RESP|MCI_LONG_RESP, card_info.cid))
return -5;
for(i=0; i<4; i++)
card_info.cid[3-i] = temp_reg[i];
/* CMD3 send RCA */
if(!send_cmd(SD_SEND_RELATIVE_ADDR, 0, MCI_RESP, &card_info.rca))
return -4;
@ -451,12 +443,9 @@ static int sd_init_card(void)
/* CMD9 send CSD */
if(!send_cmd(SD_SEND_CSD, card_info.rca,
MCI_RESP|MCI_LONG_RESP, temp_reg))
MCI_RESP|MCI_LONG_RESP, card_info.csd))
return -5;
for(i=0; i<4; i++)
card_info.csd[3-i] = temp_reg[i];
sd_parse_csd(&card_info);
/* Card back to full speed */