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| author | Marek Vasut <marex@denx.de> | 2012-04-08 17:34:46 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-04-16 14:53:59 +0200 |
| commit | 96666a39aed47c8c643dc7c6a6e15e314e63f42b (patch) | |
| tree | 27d32d53fb14bc13a65e47b5de78590016687b95 /drivers/mmc/mxsmmc.c | |
| parent | d71c9c9fc09babfdbcbf672ada763c97772839fc (diff) | |
| download | u-boot-imx-96666a39aed47c8c643dc7c6a6e15e314e63f42b.zip u-boot-imx-96666a39aed47c8c643dc7c6a6e15e314e63f42b.tar.gz u-boot-imx-96666a39aed47c8c643dc7c6a6e15e314e63f42b.tar.bz2 | |
DMA: Split the APBH DMA init into block and channel init
This fixes the issue where mxs_dma_init() was called either twice or never,
without introducing any new init hooks.
The idea is to allow each and every device using the APBH DMA block to
configure and request only the channels it uses, instead of making it call init
for all the channels as is now.
The common DMA block init part, which only configures the block, is then called
from CPUs arch_cpu_init() call.
NOTE: This patch depends on:
http://patchwork.ozlabs.org/patch/150957/
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Diffstat (limited to 'drivers/mmc/mxsmmc.c')
| -rw-r--r-- | drivers/mmc/mxsmmc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index dfceaef..35c6bda 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -338,6 +338,7 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)) (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE; struct mmc *mmc = NULL; struct mxsmmc_priv *priv = NULL; + int ret; mmc = malloc(sizeof(struct mmc)); if (!mmc) @@ -356,6 +357,10 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)) return -ENOMEM; } + ret = mxs_dma_init_channel(id); + if (ret) + return ret; + priv->mmc_is_wp = wp; priv->id = id; switch (id) { |