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sd-as3525v2: MCI_HCON bits

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24831 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2010-02-21 22:01:33 +00:00
parent 95f063cc6f
commit f857fe1450
1 changed files with 8 additions and 5 deletions
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13
firmware/target/arm/as3525/sd-as3525v2.c
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@ -175,7 +175,10 @@ static void printf(const char *format, ...)
#define MCI_DEBNCE SD_REG(0x64) /* card detect debounce */
#define MCI_USRID SD_REG(0x68) /* user id */
#define MCI_VERID SD_REG(0x6C) /* version id */
#define MCI_HCON SD_REG(0x70) /* hardware config */
/* bit 0 : card type
* bits 5:1 : maximum card index */
#define MCI_BMOD SD_REG(0x80) /* bus mode */
#define MCI_PLDMND SD_REG(0x84) /* poll demand */
@ -478,11 +481,11 @@ static void sd_thread(void)
static void init_controller(void)
{
int tmp = MCI_HCON;
int shift = 1 + ((tmp << 26) >> 27);
int idx = (MCI_HCON >> 1) & 31;
int idx_bits = (1 << idx) -1;
MCI_PWREN &= ~((1 << shift) -1);
MCI_PWREN = (1 << shift) -1;
MCI_PWREN &= ~idx_bits;
MCI_PWREN = idx_bits;
mci_delay();
@ -497,7 +500,7 @@ static void init_controller(void)
MCI_CTYPE = 0;
MCI_CLKENA = (1<<shift) - 1;
MCI_CLKENA = idx_bits;
MCI_ARGUMENT = 0;
MCI_COMMAND = CMD_DONE_BIT|CMD_SEND_CLK_ONLY|CMD_WAIT_PRV_DAT_BIT;