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| author | Ivo Clarysse <ivo.clarysse@gmail.com> | 2010-04-08 10:16:51 -0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-13 20:02:53 -0400 |
| commit | a47bfd2eb66837653dc3b42541dfe4283dd41251 (patch) | |
| tree | ce4199d6c78acb4d9332af55f6415d74e1d3d862 /Documentation/circular-buffers.txt | |
| parent | d484018056816178abffacb84b8c16628e880c83 (diff) | |
mtd: mxc_nand: support i.MX21
On i.MX21 SoCs, if the NFC_CONFIG1:NFC_INT_MASK bit is set,
NFC_CONFIG2:NFC_INT always reads out zero, even if an
operation is completed. This patch uses enable_irq and
disable_irq_nosync instead of NFC_CONFIG1:NFC_INT_MASK to
mask NFC interrupts. This allows NFC_CONFIG2:NFC_INT to also
be used to detect operation completion on i.MX21.
The i.MX21 NFC does not signal reset completion using
NFC_CONFIG1:NFC_INT_MASK, so instead reset completion is
tested by checking if NFC_CONFIG2 becomes 0.
Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'Documentation/circular-buffers.txt')
0 files changed, 0 insertions, 0 deletions