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ti_qspi uses memory map mode for faster read. Enabling DMA will increase
read speed by 3x @48MHz on DRA74 EVM.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
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Update op_mode_rx flag based on CONFIG_QSPI_QUAD_SUPPORT flag,
instead of platform.
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
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Move arch/arm/cpu/armv7/exynos/* to arch/arm/mach-exynos/* to allow
reuse of existing code for ARMv8 based Exynos platforms.
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
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Add support for AM43XX to the omap3_spi driver.
Cc: Jagan Teki <jteki@openedev.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Jagan Teki <jteki@openedev.com>
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fdt_addr_t is changed to phys_addr_t. The format in debug should be updated
to %pa to match the type.
Signed-off-by: York Sun <yorksun@freescale.com>
CC: Simon Glass <sjg@chromium.org>
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Since the timeout is reported through normal channels, and is sometimes
expected (e.g. if the bus is being probed for a non-existent device),
don't display the message in the driver.
In general, drivers should not write to the console as this limits their
usefulness in error conditions.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Trivial fix.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Zynq is using Cadence IP where binding is documented in the Linux kernel
and there is no reason to use different binding.
Synchronize it.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Several functions in this file should be marked as static. Update them.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Fix below build warnings on armv8,
drivers/spi/fsl_dspi.c: In function ‘fsl_dspi_ofdata_to_platdata’:
drivers/spi/fsl_dspi.c:667:2:
warning: format ‘%x’ expects argument of type ‘unsigned int’,
but argument 2 has type ‘fdt_addr_t’ [-Wformat=]
debug("DSPI: regs=0x%x, max-frequency=%d, endianess=%s, num-cs=%d\n",
^
lib/fdtdec.c: In function ‘fdtdec_get_addr_size’:
lib/fdtdec.c:105:4:
warning: format ‘%lx’ expects argument of type ‘long unsigned int’,
but argument 3 has type ‘fdt_size_t’ [-Wformat=]
debug("addr=%08lx, size=%08lx\n",
^
Signed-off-by: Haikun Wang <haikun.wang@freescale.com>
Acked-by: Simon Glass <sjg@chromium.org>
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The logic is incorrect and currently has no effect. Fix it so that we can
write to SPI flash, since by default it is write-protected.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Andrew Bradford <andrew.bradford@kodakalaris.com>
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The status register on ICH9 is a single byte, so use byte access when
writing to it, to avoid updating the control register also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
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Tidy up three minor problems in this file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
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This patch makes the code compatible with FIFO depths other than 4
bytes. It also simplify read/write FIFO loops.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Tested-by: Stefan Roese <sr@denx.de>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
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sram size could be different on different socs, e.g. on stv0991 it is 256 while
on altera platform it is 128. It is better to receive it from device tree.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Tested-by: Stefan Roese <sr@denx.de>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
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There is no need to re-configure sram partition for every read/write for
better full use of sram for read or write. This patch divides the half
sram for read & half for write once at initialization.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Tested-by: Stefan Roese <sr@denx.de>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
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Fix compilation warnings for redefined 'clamp' macro and non-uniform
clamp macro types.
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
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Added TEGRA20_SLINK entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
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Added TEGRA20_SFLASH entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
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Added TEGRA114_SPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
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Added ICH_SPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Added EXYNOS_SPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Added FSL_QSPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Peng Fan <Peng.Fan@freescale.com>
Cc: Haikun Wang <haikun.wang@freescale.com>
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Added FSL_ESPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Haikun Wang <haikun.wang@freescale.com>
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Added FSL_DSPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Haikun Wang <haikun.wang@freescale.com>
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DM supported spi drivers are enbled only when DM_SPI enabled,
so added DM_SPI if condition in Kconfig to show thoese only
when it enabled.
Also re-order the config items as incresing alphabetic order.
Signed-off-by: Jagan Teki <jteki@openedev.com>
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Use object files as incresing alphabetic order, so-that it's
easy for readability.
Signed-off-by: Jagan Teki <jteki@openedev.com>
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Added TI_QSPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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Added XILINX_SPI entry on Kconfig with help description.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Michal Simek <michal.simek@xilinx.com>
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Added Kconfig menu ... endmenu enties for spi support.
Signed-off-by: Jagan Teki <jteki@openedev.com>
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Add Zynq SPI controller Kconfig entry.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Marek Vasut <marex@denx.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
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This patch includes asm/io.h for readl and writel calls.
build errors:
drivers/spi/xilinx_spi.c: In function 'xilinx_spi_probe':
drivers/spi/xilinx_spi.c:119:2: warning: implicit declaration of function 'writel' [-Wimplicit-function-declaration]
drivers/spi/xilinx_spi.c: In function 'xilinx_spi_xfer':
drivers/spi/xilinx_spi.c:193:2: warning: implicit declaration of function 'readl' [-Wimplicit-function-declaration]
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Michal Simek <michal.simek@xilinx.com>
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This converts the xilinx spi driver to use the driver model.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@xilinx.com>
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Now zynq spi driver platform data is controlled by devicetree,
enable the status by saying "okay" on respective board dts to use
the devicetree generated platdata.
Ex:
&spi1 {
status = "okay";
};
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Tested-by: Jagan Teki <jteki@openedev.com>
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This converts the zynq spi driver to use the driver model.
Minimal functional changes like using meaningful name on
structure members wrt mainlined dm spi drivers.
- input_hz -> frequency
- req_hz -> freq
- base -> regs
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Tested-by: Jagan Teki <jteki@openedev.com>
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Arrange driver code in more readable format[1] for easy accessing
and readable.
[1] http://patchwork.ozlabs.org/patch/265683/
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Rex Chang <rchang@ti.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
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Move the header code into driver for more readable and
easy to access it.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Rex Chang <rchang@ti.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
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- Zap unneeded macros
- Re-arrange the code
- Removed __attribute__((weak))
- Replace __func__ macro with func names to save macro transition.
- Re-arranged comment lines.
- Arrange driver code in more readable format[1]
[1] http://patchwork.ozlabs.org/patch/265683/
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
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Move the header code into driver for more readable and
easy to access it.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
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Zap oc_tiny_spi driver since the boards used this driver
is no longer been active.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Thomas Chou <thomas@wytron.com.tw>
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Zap ftssp010_spi driver since the boards used this driver
is no longer been active.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Kuo-Jung Su <dantesu@faraday-tech.com>
Cc: Axel Lin <axel.lin@ingics.com>
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Zap andes_spi driver since the boards used this driver
is no longer been active.
Signed-off-by: Jagan Teki <jteki@openedev.com>
Cc: Macpaul Lin <macpaul@andestech.com>
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Use the oscillator as the source clock when we cannot achieve a low-enough
speed with the peripheral clock. This happens when we request 3MHz on a SPI
clock, for example.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
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At present the driver does not properly honour the requested SPI CS
deactivation delay since the SPI bus is changed in the claim_bus() method.
Everything the claim_bus() method does can be done when the device is probed
(setting the speed and mode) and at the start of a new transfer (where the
fifo_status is already cleared). So drop this method.
Also, until the delay is complete, we should not touch the bus, so make sure
that spi_cs_activate() is called before other things are done in the xfer()
method.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
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Only set the speed if it has changed from last time. Since the speed will
be 0 when the device is probed it will always be changed on the first
transfer after the device is probed.
Signed-off-by: Simon Glass <sjg@chromium.org>
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The timeout value is never reset during the transfer. This means that when
transferring more data we eventually trigger the timeout.
This was reported on the mailing list:
"Spansion SPI flash read timeout with AM335x"
Signed-off-by: David Dueck <davidcdueck@googlemail.com>
CC: Tom Rini <trini@konsulko.com>
CC: Stefan Roese <sr@denx.de>
CC: Andy Pont <andy.pont@sdcsystems.com>
Tested-by: David Dueck <davidcdueck@googlemail.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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These methods should be passed a slave device, not a bus. This matches the
old SPI interface. It is important to know which device is claiming the bus
so passing a bus is not that useful.
Reported-by: Haikun Wang <haikun.wang@freescale.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Peng Fan <Peng.Fan@freescale.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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Removed the unnecessary error check from spi_xfer
as the bitlen zero is possible now to deassert the
chip select for which no data is required to be transfered.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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