> * Tony Lindgren <t...@atomide.com> [100209 15:03]:
>> * Grant Likely <grant.lik...@secretlab.ca> [100209 14:38]:
>> > On Tue, Feb 9, 2010 at 3:25 PM, Tony Lindgren <t...@atomide.com> wrote:
>> > > * Hemanth V <heman...@ti.com> [100203 02:19]:
>> > >> From ee48142ddc43129a21676dbb56a83e3e7d8063de Mon Sep 17 00:00:00 2001
>> > >> From: Hemanth V <heman...@ti.com>
>> > >> Date: Fri, 27 Nov 2009 14:22:30 +0530
>> > >> Subject: [PATCH] Update platform files
>> > >>
>> > >> This patch updates platform files for
>> > >> fifo, slave support
>> > >>
>> > >> Signed-off-by: Hemanth V <heman...@ti.com>
>> > >
>> > > This should get merged via the spi-devel list with the other patches.
>> > >
>> > > Acked-by: Tony Lindgren <t...@atomide.com>
>> >
>> > Personally, I prefer not to carry arch/* changes in my next-spi
>> > branch, since it means that my pull requests are less obvious for
>> > Linus and there is greater chance of conflict.
>> >
>> > But if you still really want me to merge it through my tree, (or if
>> > getting the patches out of order will break things) then I'll pick it
>> > up. Just let me know.
>>
>> OK, if you ack it, I'll add the header into omap for-next. That
>> might break git bisect for some configurations depending in which
>> order the patches get pulled by Linus..
>>
>> I guess eventually this header should not live under plat.
>
> Hemanth, the patch is missing line breaks so it won't apply:
>
> http://patchwork.kernel.org/patch/76675/
>
> Please resend, I'm not editing patches manually any longer thanks.
>
> Regards,
>
> Tony
>
Pl find the patches attached, hopefully it doesnot get corrupted this
time
>From ee48142ddc43129a21676dbb56a83e3e7d8063de Mon Sep 17 00:00:00 2001
From: Hemanth V <heman...@ti.com>
Date: Fri, 27 Nov 2009 14:22:30 +0530
Subject: [PATCH] Update platform files
This patch updates platform files for
fifo, slave support
Signed-off-by: Hemanth V <heman...@ti.com>
---
arch/arm/mach-omap2/devices.c | 5 +++++
arch/arm/plat-omap/include/plat/mcspi.h | 29 ++++++++++++++++++++++++++++-
2 files changed, 33 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 733d3dc..79b5396 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -282,6 +282,7 @@ static inline void omap_init_sti(void) {}
static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
.num_cs = 4,
+ .force_cs_mode = 1,
};
static struct resource omap2_mcspi1_resources[] = {
@@ -304,6 +305,10 @@ static struct platform_device omap2_mcspi1 = {
static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
.num_cs = 2,
+ .mode = OMAP2_MCSPI_MASTER,
+ .dma_mode = 0,
+ .force_cs_mode = 0,
+ .fifo_depth = 0,
};
static struct resource omap2_mcspi2_resources[] = {
diff --git a/arch/arm/plat-omap/include/plat/mcspi.h
b/arch/arm/plat-omap/include/plat/mcspi.h
index 1254e49..ffda0a1 100644
--- a/arch/arm/plat-omap/include/plat/mcspi.h
+++ b/arch/arm/plat-omap/include/plat/mcspi.h
@@ -1,8 +1,35 @@
#ifndef _OMAP2_MCSPI_H
#define _OMAP2_MCSPI_H
+#define OMAP2_MCSPI_MASTER 0
+#define OMAP2_MCSPI_SLAVE 1
+
+/**
+ * struct omap2_mcspi_platform_config - McSPI controller configuration
+ * @num_cs: Number of chip selects or channels supported
+ * @mode: SPI is master or slave
+ * @dma_mode: Use only DMA for data transfers
+ * @force_cs_mode: Use force chip select mode or auto chip select mode
+ * @fifo_depth: FIFO depth in bytes, max value 64
+ *
+ * @dma_mode when set to 1 uses only dma for data transfers
+ * else the default behaviour is to use PIO mode for transfer
+ * size of 8 bytes or less. This mode is useful when mcspi
+ * is configured as slave
+ *
+ * @force_cs_mode when set to 1 allows continuous transfer of multiple
+ * spi words without toggling the chip select line.
+ *
+ * @fifo_depth when set to non zero values enables FIFO. fifo_depth
+ * should be set as a multiple of buffer size used for read/write.
+ */
+
struct omap2_mcspi_platform_config {
- unsigned short num_cs;
+ u8 num_cs;
+ u8 mode;
+ u8 dma_mode;
+ u8 force_cs_mode;
+ unsigned short fifo_depth;
};
struct omap2_mcspi_device_config {
--
1.5.6.3
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
