QEMU supports NVMe emulation. Enable the NVMe driver on QEMU x86.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Maximum Data Transfer Size (MDTS) field indicates the maximum
data transfer size between the host and the controller. The
host should not submit a command that exceeds this transfer
size. The value is in units of the minimum memory page size
and is reported as a power of two (2^n).

The spec also says: a value of 0h indicates no restrictions
on transfer size. On the real NVMe card this is normally not
0 due to hardware restrictions, but with QEMU emulated NVMe
device it reports as 0. In nvme_blk_read/write() below we
have the following algorithm for maximum number of logic
blocks per transfer:

u16 lbas = 1 << (dev->max_transfer_shift - ns->lba_shift);

dev->max_transfer_shift being 0 will for sure cause lbas to
overflow. Let's use 20. With this fix, the NVMe driver works
on QEMU emulated NVMe device.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

NVMe should use the nsze value from the queried device. This will
reflect the total number of blocks of the device and fix detecting
my Samsung 960 EVO 256GB.

Original:
Capacity: 40386.6 MB = 39.4 GB (82711872 x 512)

Fixed:
Capacity: 238475.1 MB = 232.8 GB (488397168 x 512)
Signed-off-by: NJon Nettleton <jon@solid-run.com>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Tested-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

This adds support to detect the catchall PCI class for NVMe devices.
It allows the drivers to work with most NVMe devices that don't need
specific detection due to quirks etc.

Tested against a Samsung 960 EVO drive.
Signed-off-by: NJon Nettleton <jon@solid-run.com>
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Add nvme commands in U-Boot command line.

1. "nvme scan" - scan NVMe blk devices
2. "nvme list" - show all available NVMe blk devices
3. "nvme info" - show current or a specific NVMe blk device
4. "nvme device" - show or set current device
5. "nvme part" - print partition table
6. "nvme read" - read data from NVMe blk device
7. "nvme write" - write data to NVMe blk device
Signed-off-by: NZhikang Zhang <zhikang.zhang@nxp.com>
Signed-off-by: NWenbin Song <wenbin.song@nxp.com>
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

This adds nvme_print_info() to show detailed NVMe controller and
namespace information.
Signed-off-by: NZhikang Zhang <zhikang.zhang@nxp.com>
Signed-off-by: NWenbin Song <wenbin.song@nxp.com>
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

NVM Express (NVMe) is a register level interface that allows host
software to communicate with a non-volatile memory subsystem. This
interface is optimized for enterprise and client solid state drives,
typically attached to the PCI express interface.

This adds a U-Boot driver support of devices that follow the NVMe
standard [1] and supports basic read/write operations.

Tested with a 400GB Intel SSD 750 series NVMe card with controller
id 8086:0953.

[1] http://www.nvmexpress.org/resources/specifications/Signed-off-by: NZhikang Zhang <zhikang.zhang@nxp.com>
Signed-off-by: NWenbin Song <wenbin.song@nxp.com>
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

This adds a new uclass id and block interface type for NVMe.
Signed-off-by: NZhikang Zhang <zhikang.zhang@nxp.com>
Signed-off-by: NWenbin Song <wenbin.song@nxp.com>
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Signed-off-by: NJon Nettleton <jon@solid-run.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Remove superfluous self assignements.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NStefan Roese <sr@denx.de>

Assigning dev_num to itself is superfluous.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NStefan Roese <sr@denx.de>

va_start must always be matched by va_end.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

If CONFIG_MMC_DW is not defined the return value of
init_dwmmc should not rely on a random stack value.

Instead indicate that no error occured.

The problem was indicated by cppcheck.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

The if in the else branch is superfluous.
We can use a simple if.

The problem was indicated by cppcheck.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

It does not make sense to check if info is NULL after
dereferencing it.

The problem was indicated by cppcheck.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NStefan Roese <sr@denx.de>

For DEVICE_NON_SHARED the newly assigned value of attr
is overwritten due to a missing break.

The problem was indicated by cppcheck.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

It does not make sense first to dereference c and then
to check if it is NULL.

The problem was indicated by cppcheck.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

It does not make sense first to dereference c and then
to check if it is NULL.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

It does not make sense to first dereference c and then
check if it is NULL.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

If the NOR device is not available do not return
a random value from the stack.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>

No need to assign a value to sig if the next statement using sig
is itself an assignment of a value to sig.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This converts the following to Kconfig:
   CONFIG_OMAP3_SPI
Signed-off-by: NAdam Ford <aford173@gmail.com>
[trini: Minor comment tweaks]
Signed-off-by: NTom Rini <trini@konsulko.com>

The OMAP3_SPI driver can work with or without DM_SPI.  Moving this
outside of the #if DM_SPI section allows us to include it on boards
that don't support DM_SPI yet.
Signed-off-by: NAdam Ford <aford173@gmail.com>

((readl(&emif4_base->sdram_iodft_tlgc) & (1<<10)) == 0x01)
is always false.
This does not match the comment
/*Wait till that bit clears*/

The problem was indicated by cppcheck.

I do not have the hardware to test if the code change below
leads to a correct system behavior.
Signed-off-by: NHeinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Fixes: 00bbe96e ("arm: omap: Unify get_device_type() function")

The control status register value is embedded in a structure somewhere
in SRAM, with the last refactoring effort. This patch allows OMAP3 EVM
(TMDSEVM3530) to boot again using the known control register base and
offset for 'readl', for the OMAP34XX case.
Signed-off-by: NDerald D. Woods <woods.technical@gmail.com>
[trini: Change to if/else, add comment about it.]
Signed-off-by: NTom Rini <trini@konsulko.com>

This converts the following to Kconfig:
   CONFIG_NAND
Signed-off-by: NAdam Ford <aford173@gmail.com>
[trini: Sync up a few more, add imply's]
Signed-off-by: NTom Rini <trini@konsulko.com>

This patch brings the OMAP3 EVM to a bootable state, on master, as of
v2017.09-rc1.
Signed-off-by: NDerald D. Woods <woods.technical@gmail.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Most of this is duplicated in Kconfig help. Add some of that which is not,
and remove the help from the README.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This file does not include all commands and has not for a while. Let's
drop it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_ZFS
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_ZBOOT
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_UUID
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_UNIVERSE

Since no board uses this, perhaps we should drop this command?
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_TSI148
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_TRACE
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_YAFFS2
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_THOR_DOWNLOAD
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This is not a valid CONFIG option. Drop it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_TERMINAL
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This converts the following to Kconfig:
   CONFIG_CMD_TCA642X
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>

This driver is not used in U-Boot. Drop it and its associated CONFIG
options.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>