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authorMarek Vasut <marex@denx.de>2013-01-22 15:01:00 +0000
committerStefano Babic <sbabic@denx.de>2013-01-28 11:43:00 +0100
commit0e5c05efb4c6ff91c556eff347d023463a96503b (patch)
tree732923bb0414ac6a59f09cce729bb9f6371744d4 /drivers/dma
parent323692196825bb22a170c26190f5436452ecadfb (diff)
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mxs: dma: Fix APBH DMA driver for MX23
The MX23 has less channels for the APBH DMA, sligtly different register layout and some bits in those registers are placed differently. Reflect this in the driver. This patch fixes MMC/DMA issue on MX23. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/apbh_dma.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c
index 37a941c..0c1cd83 100644
--- a/drivers/dma/apbh_dma.c
+++ b/drivers/dma/apbh_dma.c
@@ -223,13 +223,19 @@ static int mxs_dma_reset(int channel)
struct mxs_apbh_regs *apbh_regs =
(struct mxs_apbh_regs *)MXS_APBH_BASE;
int ret;
+#if defined(CONFIG_MX23)
+ uint32_t setreg = (uint32_t)(&apbh_regs->hw_apbh_ctrl0_set);
+ uint32_t offset = APBH_CTRL0_RESET_CHANNEL_OFFSET;
+#elif defined(CONFIG_MX28)
+ uint32_t setreg = (uint32_t)(&apbh_regs->hw_apbh_channel_ctrl_set);
+ uint32_t offset = APBH_CHANNEL_CTRL_RESET_CHANNEL_OFFSET;
+#endif
ret = mxs_dma_validate_chan(channel);
if (ret)
return ret;
- writel(1 << (channel + APBH_CHANNEL_CTRL_RESET_CHANNEL_OFFSET),
- &apbh_regs->hw_apbh_channel_ctrl_set);
+ writel(1 << (channel + offset), setreg);
return 0;
}