u-boot.git/drivers/pinctrl/broadcom, branch v2021.01

pinctrl: bcm283x: Store the return value of dev_read_u32_default to int

2020-10-02T15:32:28+00:00

Currently, the return value of dev_read_u32_default is stored in an u32,
causing the subsequent "if (function < 0)" to always be false:

u32 function;
...
function = dev_read_u32_default(config, "brcm,function", -1);
if (function < 0) {
        debug("Failed reading function for pinconfig %s (%d)\n",
                      config->name, function);
        return -EINVAL;
}

Make "function" variable an int to fix this.

Cc: Matthias Brugger 
Signed-off-by: Ovidiu Panait 
Signed-off-by: Matthias Brugger

pinctrl: bcm283x: Read address from DT in ofdata_to_platdata

2020-10-02T15:32:28+00:00

Factor out reading IP base address to ofdata_to_platdata function, which
is designed for this purpose. Also, drop the dev->priv NULL check, since
this is already done by the dm core when allocating space using
priv_auto_alloc_size feature. (in drivers/core/device.c ->
device_ofdata_to_platdata).

Cc: Matthias Brugger 
Signed-off-by: Ovidiu Panait 
Signed-off-by: Matthias Brugger

pinctrl: bcm283x: DM_FLAG_PRE_RELOC: Remove OF_CONTROL check

2020-10-02T15:32:28+00:00

Remove CONFIG_IS_ENABLED(OF_CONTROL) check from DM_FLAG_PRE_RELOC, since
this driver only supports OF_CONTROL.

drivers/pinctrl/broadcom/Kconfig:
config PINCTRL_BCM283X
    depends on ARCH_BCM283X && PINCTRL_FULL && OF_CONTROL

Cc: Matthias Brugger 
Signed-off-by: Ovidiu Panait 
Signed-off-by: Matthias Brugger

dm: Fix error handling for dev_read_addr_ptr

2020-07-01T07:01:21+00:00

dev_read_addr_ptr had different semantics depending on whether OF_LIVE was
enabled. This patch converts both implementations to return NULL on error,
and converts all call sites which check for FDT_ADDR_T_NONE to check for
NULL instead. This patch also removes the call to map_physmem, since we
have dev_remap_addr* for those semantics.

Signed-off-by: Sean Anderson 
Reviewed-by: Bin Meng 
Reviewed-by: Simon Glass

common: Drop log.h from common header

2020-05-19T01:19:18+00:00

Move this header out of the common header.

Signed-off-by: Simon Glass

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46+00:00

At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass

drivers: bcm283x: Set pre-location flag for OF_BOARD

2019-11-24T09:46:27+00:00

U-Boot support on Raspberry Pi 4 relies on the device-tree
provided by the firmware. The blob does not contain the
U-Boot specific pre-loc-rel properties. The result is, that
the U-Boot banner is not printed.

We fix this by setting the DM_FLAG_PRE_RELOC flag in the driver,
if we rely on a device-tree provided by the firmware.

Reported-by: Heinrich Schuchardt 
Signed-off-by: Matthias Brugger

pinctrl: bcm283x: Add compatible for RPi4

2019-11-24T09:46:27+00:00

The Raspberry Pi 4 upstream kernel device tree instroduces
a new compatible for the pinctroller. Add this to the driver
so that we can boot with the upstream kernel DT.

Signed-off-by: Matthias Brugger

pinctrl: Remove DM_FLAG_PRE_RELOC flag in various drivers

2018-11-14T17:16:28+00:00

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

pinctrl: bcm6838: add pinctrl support

2018-09-22T18:49:59+00:00

Add pinctrl support for broadcom bcm6838 SoC.

Signed-off-by: Philippe Reynes