u-boot.git/drivers/clk/altera, branch master

Merge patch series "treewide: Clean up usage of DECLARE_GLOBAL_DATA_PTR"

2026-02-17T19:51:26+00:00

Peng Fan (OSS)  says:

This patch set primarily removes unused DECLARE_GLOBAL_DATA_PTR
instances.

Many files declare DECLARE_GLOBAL_DATA_PTR and include
asm/global_data.h even though gd is never used. In these cases,
asm/global_data.h is effectively treated as a proxy header, which is
not a good practice.

Following the Include What You Use principle, files should include
only the headers they actually depend on, rather than relying on
global_data.h indirectly. This approach is also adopted in Linux kernel
[1].

The first few patches are prepartion to avoid building break after
remove the including of global_data.h.

A script is for filtering the files:
list=`find . -name "*.[ch]"`
for source in ${list}
do
        result=`sed -n '/DECLARE_GLOBAL_DATA_PTR/p' ${source}`
        if [ "${result}" == "DECLARE_GLOBAL_DATA_PTR;" ]; then
                echo "Found in ${source}"

                result=`sed -n '/\/p' ${source}`
                result2=`sed -n '/\/p' ${source}`
                if [ "${result}" == "" ] && [ "${result2}" == "" ] && [ "${result3}" == "" ];then
                        echo "Cleanup ${source}"
                        sed -i '/DECLARE_GLOBAL_DATA_PTR/{N;/\n[[:space:]]*$/d;s/.*\n//;}' ${source}
                        sed -i '/DECLARE_GLOBAL_DATA_PTR/d' ${source}
                        sed -i '/global_data.h/d' ${source}
                        git add ${source}
                fi
        fi
done

[1] https://lpc.events/event/17/contributions/1620/attachments/1228/2520/Linux%20Kernel%20Header%20Optimization.pdf

CI: https://github.com/u-boot/u-boot/pull/865

Link: https://lore.kernel.org/r/20260209-cleanup-v2-0-73a3a84ddbdb@nxp.com

treewide: Clean up DECLARE_GLOBAL_DATA_PTR usage

2026-02-17T19:50:22+00:00

Remove DECLARE_GLOBAL_DATA_PTR from files where gd is not used, and
drop the unnecessary inclusion of asm/global_data.h.

Headers should be included directly by the files that need them,
rather than indirectly via global_data.h.

Reviewed-by: Patrice Chotard  #STMicroelectronics boards and STM32MP1 ram test driver
Tested-by: Anshul Dalal  #TI boards
Acked-by: Yao Zi  #TH1520
Signed-off-by: Peng Fan

Replace TARGET namespace and cleanup properly

2026-02-14T17:06:46+00:00

TARGET namespace is for machines / boards / what-have-you that
building U-Boot for. Simply replace from TARGET to ARCH
make things more clear and proper for ALL SoCFPGA.

Signed-off-by: Brian Sune 
Reviewed-by: Tien Fong Chee 

# Conflicts:
#	drivers/ddr/altera/Makefile

clk: altera: agilex: Exclude AGILEX_L4_SYS_FREE_CLK from enable/disable operations

2026-02-14T17:06:46+00:00

AGILEX_L4_SYS_FREE_CLK is a free-running clock with no gate control in
hardware, therefore attempting to enable or disable it is not applicable.

Update the clock driver to explicitly exclude this clock ID from
enable/disable operations by returning -EOPNOTSUPP in bitmask_from_clk_id()
and treating this as a no-op in the socfpga_clk_enable() and
socfpga_clk_disable() functions.

This prevents unnecessary register access for clocks that cannot be gated
and ensures clean handling when the clock is present in the device tree.

Signed-off-by: Alif Zakuan Yuslaimi 
Reviewed-by: Tien Fong Chee

socfpga: agilex: fix NAND clock handling

2026-02-14T17:06:46+00:00

In v2025.10, the Agilex clock driver was updated to support
clk_enable() and clk_disable() using clock-ID based bitmasks.
However, only AGILEX_NAND_CLK was implemented, while the NAND DT
node still referenced both nand and nand_x clocks.

Since AGILEX_NAND_X_CLK is not defined in the clock driver or the
clock-ID specification, clk_enable() failed during NAND probe.
As a result, the Denali NAND controller never completed
initialization.

Fix this by mapping the NAND X clock to the existing l4_mp clock
bitmask, aligning the DT expectations with the clock driver and
restoring proper NAND controller initialization.

Signed-off-by: Dinesh Maniyam 
Reviewed-by: Tien Fong Chee

drivers: clk: agilex: Use FIELD_GET during EMAC clock selection

2025-09-30T06:29:56+00:00

FIELD_GET() macro is used during EMAC clock source selection
for better code readability and maintainability.

Signed-off-by: Naresh Kumar Ravulapalli 
Reviewed-by: Tien Fong Chee

drivers: clk: agilex: Fix EMAC clock source selection

2025-09-30T06:29:56+00:00

Fix the incorrect bit masking and bit shift used to compute EMAC
control which in turn is used to select EMAC clock from EMAC
source A or B.

Signed-off-by: Naresh Kumar Ravulapalli 
Reviewed-by: Tien Fong Chee

drivers: clk: agilex: Support for enable/disable API

2025-09-30T06:29:55+00:00

Update Agilex clock driver to support enabling or disabling
the peripheral clocks via clock driver model APIs.

The caller will pass the clock ID to this driver and the driver
will then proceed to manipulate the desired bit in the Agilex clock
manager peripheral PLL register based on the given clock ID.

Signed-off-by: Alif Zakuan Yuslaimi 
Reviewed-by: Tien Fong Chee

clk: altera: Add clock support for Agilex7 M-series

2025-08-08T14:20:53+00:00

Agilex7 M-series reuse the clock driver from Agilex.

Signed-off-by: Tingting Meng 
Signed-off-by: Alif Zakuan Yuslaimi 
Reviewed-by: Tien Fong Chee

drivers: clk: agilex: Replace status polling with wait_for_bit_le32()

2025-08-08T14:20:47+00:00

Replace cm_wait_for_fsm() function with wait_for_bit_le32() function
which supports accurate timeout.

Signed-off-by: Alif Zakuan Yuslaimi 
Reviewed-by: Tien Fong Chee