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| author | Markus Niebel <Markus.Niebel@tqs.de> | 2014-01-14 09:23:35 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-01-15 15:22:43 +0100 |
| commit | f11668fee725f59ab13e40f58f46ab7e65205457 (patch) | |
| tree | b1a7dd4c3f222412f68ab5845d2abacec480d17e /drivers/mci/mci-core.c | |
| parent | 78b9e4e041461047ffb27f4a12c8c7346ca34149 (diff) | |
| download | barebox-f11668fee725f59ab13e40f58f46ab7e65205457.tar.gz barebox-f11668fee725f59ab13e40f58f46ab7e65205457.tar.xz | |
mci: add device tree support for DSR
add optional DSR support. This should go into the kernel, too
Signed-off-by: Markus Niebel <Markus.Niebel@tqs.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/mci/mci-core.c')
| -rw-r--r-- | drivers/mci/mci-core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mci/mci-core.c b/drivers/mci/mci-core.c index 12611090ff..cf38a88a9b 100644 --- a/drivers/mci/mci-core.c +++ b/drivers/mci/mci-core.c @@ -1775,6 +1775,7 @@ void mci_of_parse(struct mci_host *host) { struct device_node *np; u32 bus_width; + u32 dsr_val; if (!IS_ENABLED(CONFIG_OFDEVICE)) return; @@ -1807,4 +1808,11 @@ void mci_of_parse(struct mci_host *host) /* f_max is obtained from the optional "max-frequency" property */ of_property_read_u32(np, "max-frequency", &host->f_max); + + if (!of_property_read_u32(np, "dsr", &dsr_val)) { + if (dsr_val < 0x10000) { + host->use_dsr = 1; + host->dsr_val = dsr_val; + } + } } |