diff options
| author | Marek Vasut <marex@denx.de> | 2013-01-11 03:19:14 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-01-21 12:05:21 +0100 |
| commit | 1a3c5ffe4f060455a8121093dc82e005b632c9b4 (patch) | |
| tree | f5f326521eb2256267a0a1ebb1d784c94771918e | |
| parent | deb0757cc75eb256fc8e7016720fd1b11de1b16b (diff) | |
mmc: Limit the number of used SSP ports on MX23
The MX23 can only use two SSP ports.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | drivers/mmc/mxsmmc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index 76878d08c3..0c4cd54b79 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -356,6 +356,16 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)) struct mmc *mmc = NULL; struct mxsmmc_priv *priv = NULL; int ret; +#if defined(CONFIG_MX23) + const unsigned int mxsmmc_max_id = 2; + const unsigned int mxsmmc_clk_id = 0; +#elif defined(CONFIG_MX28) + const unsigned int mxsmmc_max_id = 4; + const unsigned int mxsmmc_clk_id = id; +#endif + + if (id >= mxsmmc_max_id) + return -ENODEV; mmc = malloc(sizeof(struct mmc)); if (!mmc) @@ -401,7 +411,7 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)) * CLOCK_RATE could be any integer from 0 to 255. */ mmc->f_min = 400000; - mmc->f_max = mxc_get_clock(MXC_SSP0_CLK + id) * 1000 / 2; + mmc->f_max = mxc_get_clock(MXC_SSP0_CLK + mxsmmc_clk_id) * 1000 / 2; mmc->b_max = 0x20; mmc_register(mmc); |