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AS3525: enable access to the embedded SD card

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Don't reset the peripherals
Don't mind about the spare register
Don't mind about MEMSTICK peripheral
Use correct clock speeds for IDE

Tested on Clip only

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19036 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2008-11-07 10:52:26 +00:00
parent 2b81bce27c
commit 3952e6d008
1 changed files with 4 additions and 19 deletions
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23
firmware/target/arm/as3525/ata_sd_as3525.c
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@ -285,25 +285,10 @@ static void init_pl180_controller(const int drive)
int sd_init(void) int sd_init(void)
{ {
/* reset peripherals */ CGU_IDE = (1<<7) /* AHB interface enable */ |
(1<<6) /* interface enable */ |
CCU_SRC = (2<<2) /* clock didiver = 2+1 */ |
#ifdef HAVE_MULTIVOLUME 1 /* clock source = PLLA */;
CCU_SRC_SDMCI_EN |
#endif
CCU_SRC_NAF_EN | CCU_SRC_IDE_EN | CCU_SRC_IDE_AHB_EN | CCU_SRC_MST_EN;
CCU_SRL = CCU_SRL_MAGIC_NUMBER;
CCU_SRL = 0;
GPIOC_DIR &= ~(1<<1);
if(GPIOC_PIN(1))
CCU_SPARE1 |= 4; /* sets bit 2 of undocumented register */
else
CCU_SPARE1 &= ~4; /* or clear it */
CGU_IDE = (1<<7)|(1<<6); /* enable, 24MHz clock */
CGU_MEMSTICK = (1<<8); /* enable, 24MHz clock */
CGU_PERI |= CGU_NAF_CLOCK_ENABLE; CGU_PERI |= CGU_NAF_CLOCK_ENABLE;
#ifdef HAVE_MULTIVOLUME #ifdef HAVE_MULTIVOLUME