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author | Wolfgang Denk <wd@pollux.denx.de> | 2006-07-10 23:07:28 +0200 |
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committer | Wolfgang Denk <wd@pollux.denx.de> | 2006-07-10 23:07:28 +0200 |
commit | 9d407995516bfcd401b76de0c11e679fb3871c79 (patch) | |
tree | dae126efb15ae0a160bd1b3f0b18ad2735c6c015 /drivers/pxa_pcmcia.c | |
parent | a874c8c65f57ecfbb8c7961525ac4376b6fbab8b (diff) | |
download | u-boot-imx-9d407995516bfcd401b76de0c11e679fb3871c79.zip u-boot-imx-9d407995516bfcd401b76de0c11e679fb3871c79.tar.gz u-boot-imx-9d407995516bfcd401b76de0c11e679fb3871c79.tar.bz2 |
Major PCMCIA Cleanup to make code better readable and maintainable.
Notes:
- Board-dependend code for RPXLITE and RPXCLASSIC-based boards
placed to the drivers/rpx_pmcia.c file to avoid duplication.
Same for TQM8xx-based boards (drivers/tqm8xx_pmcia.c).
- drivers/i82365.c has been split into two parts located at
board/atc/ti113x.c and board/cpc45/pd67290.c (ATC and CPC45 are
the only boards using CONFIG_82365).
- Changes were tested for clean build and *very* *few* boards.
Diffstat (limited to 'drivers/pxa_pcmcia.c')
-rw-r--r-- | drivers/pxa_pcmcia.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/pxa_pcmcia.c b/drivers/pxa_pcmcia.c new file mode 100644 index 0000000..d9d38bb --- /dev/null +++ b/drivers/pxa_pcmcia.c @@ -0,0 +1,95 @@ +#include <common.h> +#include <config.h> + +#ifdef CONFIG_PXA_PCMCIA + +#include <pcmcia.h> +#include <asm/arch/pxa-regs.h> +#include <asm/io.h> + +static inline void msWait(unsigned msVal) +{ + udelay(msVal*1000); +} + +int pcmcia_on (void) +{ + unsigned int reg_arr[] = { + 0x48000028, CFG_MCMEM0_VAL, + 0x4800002c, CFG_MCMEM1_VAL, + 0x48000030, CFG_MCATT0_VAL, + 0x48000034, CFG_MCATT1_VAL, + 0x48000038, CFG_MCIO0_VAL, + 0x4800003c, CFG_MCIO1_VAL, + + 0, 0 + }; + int i, rc; + +#ifdef CONFIG_EXADRON1 + int cardDetect; + volatile unsigned int *v_pBCRReg = + (volatile unsigned int *) 0x08000000; +#endif + + debug ("%s\n", __FUNCTION__); + + i = 0; + while (reg_arr[i]) + *((volatile unsigned int *) reg_arr[i++]) |= reg_arr[i++]; + udelay (1000); + + debug ("%s: programmed mem controller \n", __FUNCTION__); + +#ifdef CONFIG_EXADRON1 + +/*define useful BCR masks */ +#define BCR_CF_INIT_VAL 0x00007230 +#define BCR_CF_PWRON_BUSOFF_RESETOFF_VAL 0x00007231 +#define BCR_CF_PWRON_BUSOFF_RESETON_VAL 0x00007233 +#define BCR_CF_PWRON_BUSON_RESETON_VAL 0x00007213 +#define BCR_CF_PWRON_BUSON_RESETOFF_VAL 0x00007211 + + /* we see from the GPIO bit if the card is present */ + cardDetect = !(GPLR0 & GPIO_bit (14)); + + if (cardDetect) { + printf ("No PCMCIA card found!\n"); + } + + /* reset the card via the BCR line */ + *v_pBCRReg = (unsigned) BCR_CF_INIT_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETOFF_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETON_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETON_VAL; + msWait (500); + + *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETOFF_VAL; + msWait (1500); + + /* enable address bus */ + GPCR1 = 0x01; + /* and the first CF slot */ + MECR = 0x00000002; + +#endif /* EXADRON 1 */ + + rc = check_ide_device (0); /* use just slot 0 */ + + return rc; +} + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +int pcmcia_off (void) +{ + return 0; +} +#endif + +#endif /* CONFIG_PXA_PCMCIA */ |