* [PATCH 4/10] LPC32XX: 004-mmc.1: Enable dma for Phytec board
@ 2013-04-17 20:42 Cedric Berger
0 siblings, 0 replies; only message in thread
From: Cedric Berger @ 2013-04-17 20:42 UTC (permalink / raw)
To: linux-arm-kernel
Signed-off-by: Gabriele Mondada <gabriele@precidata.com>
---
Enable DMA for phy3250. Without that, the mmc driver is unusable.
Index: arch/arm/mach-lpc32xx/phy3250.c
===================================================================
--- arch/arm/mach-lpc32xx/phy3250.c (revision 1732)
+++ arch/arm/mach-lpc32xx/phy3250.c (revision 1733)
@@ -168,6 +168,12 @@
.max_signal = 12,
.periph_buses = PL08X_AHB1,
},
+ {
+ .bus_id = "mmc",
+ .min_signal = 4,
+ .max_signal = 4,
+ .periph_buses = PL08X_AHB1,
+ },
};
static int pl08x_get_signal(const struct pl08x_channel_data *cd)
@@ -202,9 +208,13 @@
.ocr_mask = MMC_VDD_30_31 | MMC_VDD_31_32 |
MMC_VDD_32_33 | MMC_VDD_33_34,
.ios_handler = mmc_handle_ios,
- .dma_filter = NULL,
- /* No DMA for now since AMBA PL080 dmaengine driver only does scatter
- * gather, and the MMCI driver doesn't do it this way */
+ .dma_filter = pl08x_filter_id,
+ .dma_rx_param = "mmc",
+ /*
+ * When not defined, tx channel is the same as rx.
+ * Defining dma_tx_param with the same value as dma_rx_param does not
+ * work.
+ */
};
static struct lpc32xx_slc_platform_data lpc32xx_slc_data = {
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