From 69c202afa8ad6d6c1c673d8f9d47b43a0a3604e5 Mon Sep 17 00:00:00 2001 From: Andrea Paterniani Date: Mon, 12 Feb 2007 00:52:39 -0800 Subject: [PATCH] SPI: Freescale iMX SPI controller driver (BIS+) Add the SPI controller driver for Freescale i.MX(S/L/1). Main features summary: > Per chip setup via board specific code and/or protocol driver. > Per transfer setup. > PIO transfers. > DMA transfers. > Managing of NULL tx / rx buffer for rd only / wr only transfers. This patch replace patch-2.6.20-rc4-spi_imx with the following changes: > Few cosmetic changes. > Function map_dma_buffers now return 0 for success and -1 for failure. > Solved a bug inside spi_imx_probe function (wrong error path). > Solved a bug inside setup function (bad undo setup for max_speed_hz). > For read-only transfers, always write zero bytes. This is almost the same as the 'BIS' version sent by Andrea, except for updating the 'DUMMY' byte so that read-only transfers shift out zeroes. That part of the API changed recently, since some half duplex peripheral chips require that semantic. Signed-off-by: Andrea Paterniani Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/spi/Kconfig') diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 2a2f44d1367..b217a65453f 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -75,6 +75,13 @@ config SPI_BUTTERFLY inexpensive battery powered microcontroller evaluation board. This same cable can be used to flash new firmware. +config SPI_IMX + tristate "Freescale iMX SPI controller" + depends on SPI_MASTER && ARCH_IMX && EXPERIMENTAL + help + This enables using the Freescale iMX SPI controller in master + mode. + config SPI_MPC83xx tristate "Freescale MPC83xx SPI controller" depends on SPI_MASTER && PPC_83xx && EXPERIMENTAL @@ -94,6 +101,7 @@ config SPI_OMAP_UWIRE help This hooks up to the MicroWire controller on OMAP1 chips. + config SPI_PXA2XX tristate "PXA2xx SSP SPI master" depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL -- cgit v1.2.3