u-boot.git/drivers/spi, branch v2017.07-rc2

tegra: spi: Wait a little after setting the clocks

2017-06-09T19:39:33Z

For devices that need a delay between SPI transactions we seem to need an additional delay before the first one if the CPU is running at full speed. Add this, under control of the existing setting. At present it will only be enabled with the Chrome OS EC. Signed-off-by: Simon Glass

dm: spi: Convert uclass to livetree

2017-06-01T13:03:16Z

Update the SPI uclass to support a live device tree. Also adjust spi_slave_ofdata_to_platdata() to accept a device instead of a blob and offset. Signed-off-by: Simon Glass

dm: gpio: Add live tree support

2017-06-01T13:03:10Z

Add support for requesting GPIOs with a live device tree. This involves adjusting the function signature for the legacy function gpio_request_by_name_nodev(), so fix up all callers. Signed-off-by: Simon Glass Fixes to stm32f746-disco.c: Signed-off-by: Tom Rini

dm: core: Replace of_offset with accessor (part 2)

2017-06-01T13:03:04Z

At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass

dm: Fix up inclusion of common.h

2017-06-01T13:03:03Z

It is good practice to include common.h as the first header. This ensures that required features like the DECLARE_GLOBAL_DATA_PTR macro, configuration options and common types are available. Fix up some files which currently don't do this. This is necessary because driver model will soon start using global data and configuration in the dm/read.h header file, included via dm.h. The gd->fdt_blob value will be used to access the device tree and CONFIG options will be used to determine whether to support inline functions in the header file. Signed-off-by: Simon Glass

dm: Rename dev_addr..() functions

2017-06-01T13:03:01Z

These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass

spi: kconfig: add soft spi Kconfig entry

2017-05-18T09:24:34Z

Add the Kconfig entry for SOFT_SPI which uses gpio to simulate the SPI signals. We use it for accessing 74x164 on some i.MX boards. Signed-off-by: Peng Fan Cc: Jagan Teki Cc: Stefano Babic

spi: ich: Configure SPI BIOS parameters for Linux upon U-Boot exit

2017-05-17T09:13:06Z

This patch adds a remove function to the Intel ICH SPI driver, that will be called upon U-Boot exit, directly before the OS (Linux) is started. This function takes care of configuring the BIOS registers in the SPI controller (similar to what a "standard" BIOS or coreboot does), so that the Linux MTD device driver is able to correctly read/write to the SPI NOR chip. Without this, the chip is not detected at all. Signed-off-by: Stefan Roese Reviewed-by: Simon Glass Cc: Bin Meng Cc: Jagan Teki

omap: spi: Drop CONFIG_OMAP3_SPI_D0_D1_SWAPPED support

2017-05-15T14:40:01Z

This particular quirk is not enabled in any config files today. It does however exist and is handled correctly in device trees and via CONFIG_DM_SPI. So we drop the symbol now and add a comment to indicate that any (new) boards that require this quirk need to enable DM_SPI instead. Signed-off-by: Tom Rini

rockchip: spi: enable support for the rk_spi driver for the RK3399

2017-05-10T19:37:21Z

The existing Rockchip SPI (rk_spi.c) driver also matches the hardware block found in the RK3399. This has been confirmed both with SPI NOR flashes and general SPI transfers on the RK3399-Q7 for SPI1 and SPI5. This change adds the 'rockchip,rk3399-spi' string to its compatible list to allow reuse of the existing driver. X-AffectedPlatforms: RK3399-Q7 Signed-off-by: Philipp Tomsich Tested-by: Jakob Unterwurzacher Acked-by: Simon Glass