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This patch check for the DLL status before doing the DLL reset.
If DLL reset is already issued then skip the reset inside ATF
otherwise DLL reset will be issued.
By doing this way, all the following cases will be supported.
1. Patched ATF + Patched Linux base.
2. Older ATF + Patched Linux base.
3. Patched ATF + Older Linux base.
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Change-Id: I53a0a27521330f1543275cc9cb44cd1dfc569c65

-Wlogical-op prevents common errors with using numerical constants where
a boolean one is expected as well as when the operands of a logical
operator are the same. While these are perfectly valid behavior, they
can be a sign that something is slightly off.

This patch adds this warning to gcc and it's closest equivalent to
clang, while also fixing any warnings that enabling them causes.

Change-Id: Iabadfc1e6ee0c44eef6685a23b0aed8abef8ce89
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>

Move zynqmp_def.h to platform specific include directory.
Also, update source file to include header file from updated
path of zynqmp_def.h
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Reviewed-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

When linux calls pm_ioctl_get_pll_frac_mode() it doesn't expect the actual
mode to be read from hardware, but the value that it is intending to
program. Therefore, we return the buffered value to linux.
Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Acked-by: Will Wong <WILLW@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

When linux calls pm_ioctl_set_pll_frac_mode() it doesn't expect the
fractional mode to be changed in hardware. Furthermore, even before this
patch setting the mode which is done by writing into register takes
no effect until the PLL reset is deasserted, i.e. until linux "enables"
the PLL. To adjust the code to system-level PLL EEMI API and avoid
unnecessary IPIs that would otherwise be issued, we buffer the mode
value set via IOCTL until the PLL mode really needs to be set.
Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Acked-by: Will Wong <WILLW@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

Fractional data should be set using PLL set parameter EEMI API. This
stands for system-level communication (APU to PMU). Since linux
already uses a specific IOCTL function to do this and we need to
keep it that way, the pll clock ID given by linux has to be mapped
to the pll node ID that is communicated at the system-level (argument
of PLL set parameter API).
With this modification the function pm_api_clk_set_pll_frac_data is
removed from pm_api_clock.c/h because it became unused.
Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Acked-by: Will Wong <WILLW@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

Fractional data should be get using PLL get parameter EEMI API. This
stands for system-level communication (APU to PMU). Since linux
already uses a specific IOCTL function to do this and we need to
keep it that way, the pll clock ID given by linux has to be mapped
to the pll node ID that is communicated at the system-level (argument
of PLL get parameter API).
With this modification the function pm_api_clk_get_pll_frac_data is
removed from pm_api_clock.c/h because it became unused.
The clock enum is defined as 'enum clock_id'.
Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com>
Acked-by: Will Wong <WILLW@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca339

 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Ensure case clauses:
*   Terminate with an unconditional break, return or goto statement.
*   Use conditional break, return or goto statements as long as the end
    of the case clause is unreachable; such case clauses must terminate
    with assert(0) /* Unreachable */ or an unconditional  __dead2 function
    call
*   Only fallthough when doing otherwise would result in less
    readable/maintainable code; such case clauses must terminate with a
    /* Fallthrough */ comment to make it clear this is the case and
    indicate that a fallthrough is intended.

This reduces the chance of bugs appearing due to unintended flow through a
switch statement

Change-Id: I70fc2d1f4fd679042397dec12fd1982976646168
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>

Add support for writing to AFI registers.
So that after writing a bitstream the interface can be programmed.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>

Since the MMIO read/write APIs are removed from Linux user space,
Linux cannot directly write to the Global General Storage Register 4
any more to set healthy boot status.

Create an IOCTL to allow Linux to set boot health status.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Acked-by: Will Wong <willw@xilinx.com>

To make ULPI transceiver work, a HIGH - LOW - HIGH pulse needs
to be given to resetb pin of ULPI chip. In ZYNQMP, this resetb
pin is being driven by BOOT MODE PIN 1. The BOOT MODE PIN's
are controlled by BOOT_PIN_CTRL register present in CRL_APB
address region. Since CRL_APB can be resticted to secure access,
this pin should be controlled by ATF.

This patch adds the support for the same.
Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>

Various changes to comply with MISRA static analysis rules
Signed-off-by: Jolly Shah <jollys@xilinx.com>

Add IOCTLs to read/write global general storage and
persistent global general storage registers access.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

These are empty functions with no logic right now. Code
will be added in subsequent commits.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

Implement ioctl APIs which uses MMIO operations
to configure devices. Below IOCTLs are supported
in this patch:
  * Set tap delay bypass
  * Set SGMII mode
  * SD reset
  * Set SD/MMC tap delay
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>

Implement ioctl APIs which uses MMIO operations
to control RPU operations. Below IOCTLs are supported
in this patch:
  * Get RPU operation mode
  * Set RPU operation mode
  * Configure RPU boot address (OCM/TCM)
  * Configure TCM combined mode
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>