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mmc: Limit the number of used SSP ports on MX23

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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>
This commit is contained in:
Marek Vasut 2013-01-11 03:19:14 +00:00 committed by Stefano Babic
parent deb0757cc7
commit 1a3c5ffe4f
1 changed files with 11 additions and 1 deletions
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12
drivers/mmc/mxsmmc.c
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@ -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);