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| author | Steve Sakoman <steve@sakoman.com> | 2010-04-29 10:28:14 -0700 |
|---|---|---|
| committer | Sandeep Paulraj <s-paulraj@ti.com> | 2010-07-05 19:59:49 -0400 |
| commit | 8f22327a664acc886efc3f5362e6c375c82d5bcb (patch) | |
| tree | a5fe62bbcc5a503583a171be5eac65395b1d540b /drivers | |
| parent | 54841ab50c20d6fa6c9cc3eb826989da3a22d934 (diff) | |
| download | u-boot-imx-8f22327a664acc886efc3f5362e6c375c82d5bcb.zip u-boot-imx-8f22327a664acc886efc3f5362e6c375c82d5bcb.tar.gz u-boot-imx-8f22327a664acc886efc3f5362e6c375c82d5bcb.tar.bz2 | |
OMAP: mmc: add support for second and third mmc channels
This patch adds support for the second and third mmc channels on OMAP3
processors
Boards wishing to use this feature should define CONFIG_SYS_MMC_SET_DEV
in the board config
Tested on Overo
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Tested-by: Philip Balister <philip@opensdr.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/omap3_mmc.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c index 96c0e65..25b66f2 100644 --- a/drivers/mmc/omap3_mmc.c +++ b/drivers/mmc/omap3_mmc.c @@ -52,7 +52,27 @@ const unsigned short mmc_transspeed_val[15][4] = { mmc_card_data cur_card_data; static block_dev_desc_t mmc_blk_dev; -static hsmmc_t *mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE; +static hsmmc_t *mmc_base = (hsmmc_t *)OMAP_HSMMC1_BASE; + +unsigned char mmc_set_dev(int dev) +{ + switch (dev) { + case 1: + mmc_base = (hsmmc_t *)OMAP_HSMMC1_BASE; + break; + case 2: + mmc_base = (hsmmc_t *)OMAP_HSMMC2_BASE; + break; + case 3: + mmc_base = (hsmmc_t *)OMAP_HSMMC3_BASE; + break; + default: + mmc_base = (hsmmc_t *)OMAP_HSMMC1_BASE; + return 1; + } + + return 0; +} block_dev_desc_t *mmc_get_dev(int dev) { @@ -62,6 +82,7 @@ block_dev_desc_t *mmc_get_dev(int dev) unsigned char mmc_board_init(void) { t2_t *t2_base = (t2_t *)T2_BASE; + struct prcm *prcm_base = (struct prcm *)PRCM_BASE; #if defined(CONFIG_TWL4030_POWER) twl4030_power_mmc_init(); @@ -74,6 +95,17 @@ unsigned char mmc_board_init(void) writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL, &t2_base->devconf0); + writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL, + &t2_base->devconf1); + + writel(readl(&prcm_base->fclken1_core) | + EN_MMC1 | EN_MMC2 | EN_MMC3, + &prcm_base->fclken1_core); + + writel(readl(&prcm_base->iclken1_core) | + EN_MMC1 | EN_MMC2 | EN_MMC3, + &prcm_base->iclken1_core); + return 1; } @@ -512,8 +544,11 @@ unsigned long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt, return 1; } -int mmc_legacy_init(int verbose) +int mmc_legacy_init(int dev) { + if (mmc_set_dev(dev) != 0) + return 1; + if (configure_mmc(&cur_card_data) != 1) return 1; |