bcm63xx/u-boot/drivers/serial/serial_lpuart.c, branch master

serial: Remove DM_FLAG_PRE_RELOC flag in various drivers

2018-11-14T17:16:28Z

When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be bound before relocation. However due to a bug in the DM core, the flag only takes effect when devices are statically declared via U_BOOT_DEVICE(). This bug has been fixed recently by commit "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()", but with the fix, it has a side effect that all existing drivers that declared DM_FLAG_PRE_RELOC flag will be bound before relocation now. This may expose potential boot failure on some boards due to insufficient memory during the pre-relocation stage. To mitigate this potential impact, the following changes are implemented: - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver only supports configuration from device tree (OF_CONTROL) - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device is statically declared via U_BOOT_DEVICE() - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for drivers that support both statically declared devices and configuration from device tree Signed-off-by: Bin Meng Reviewed-by: Simon Glass

serial: lpuart: support uclass clk api

2018-10-22T10:59:02Z

Modify most APIs to use udevice as the first parameter, then it will be easy to get the clk reference by using udevice pointer. Use uclass api to get lpuart clk when CONFIG_CLK is enabled. Signed-off-by: Peng Fan Signed-off-by: Anatolij Gustschin Cc: Stefano Babic

serial: lpuart: Enable RX and TX FIFO

2018-10-22T10:59:02Z

Enable the RX and TX FIFO in LPUART driver to avoid the input lost during U-Boot boot up. Signed-off-by: Ye Li Acked-by: Peng Fan Reviewed-by: Anatolij Gustschin Cc: Stefano Babic

serial_lpuart: Update lpuart driver to support i.MX8

2018-10-22T10:59:02Z

Add i.MX8 compatible string and cpu type support to lpuart driver, to use little endian 32 bits configurations. Also, according to RM, the Receive FIFO Enable (RXFE) field in LPUART FIFO register is bit 3, so this definition should change to 0x08 (not 0x40) for i.MX8, otherwise the Receive FIFO is not disabled. Signed-off-by: Peng Fan Reviewed-by: Anatolij Gustschin Cc: Stefano Babic

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

serial: lpuart: Proper device identification

2018-01-15T20:44:09Z

Identify and distinguish between platform device type of MX7ULP and LS1021A. This is a fix to commit 7edf5c45("serial: lpuart: add i.MX7ULP support"). Signed-off-by: Sriram Dash Acked-by: Peng Fan Reviewed-by: York Sun

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: 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

serial: lpuart: add i.MX7ULP support

2017-03-17T08:27:08Z

Add i.MX7ULP support. The buadrate calculation on i.MX7ULP is different,so add a new setbrg function for i.MX7ULP. Add a enum lpuart_devtype for runtime check for different platforms. Signed-off-by: Peng Fan Cc: Stefano Babic Cc: Bhuvanchandra DV Cc: York Sun Cc: Shaohui Xie Cc: Alison Wang

serial: lpuart: restructure lpuart driver

2017-03-17T08:27:08Z

Drop CONFIG_LPUART_32B_REG. Move the register structure to a common file include/fsl_lpuart.h Define lpuart_serial_platdata structure which includes the reg base and flags. For 32Bit register access, use lpuart_read32/lpuart_write32 which handles big/little endian. For 8Bit register access, still use the orignal code. Signed-off-by: Peng Fan Reviewed-by : Stefano Babic Cc: Bhuvanchandra DV Cc: York Sun Cc: Shaohui Xie Cc: Alison Wang