Hi Tien Fong,

On 16/4/2026 11:52 am, Chee, Tien Fong wrote:
> Hi Dinesh,
> 
> 
> On 11/3/2026 1:01 pm, [email protected] wrote:
>> From: Dinesh Maniyam <[email protected]>
>>
>> By using the handoff COMBOPHY selection data [BIT 16], we can determine
>> whether the combophy used for SDMMC or NAND. The DFISEL configured for
>> SDMMC if the handoff COMBOPHY sel [BIT 16] selected for SDMMC.
>> This ensures that the appropriate PHY interface is enabled during
>> early boot based on handoff configuration.
>>
>> Signed-off-by: Dinesh Maniyam <[email protected]>
>> ---
>>   .../mach-socfpga/include/mach/handoff_soc64.h    |  1 +
>>   .../include/mach/system_manager_soc64.h          |  1 +
>>   drivers/clk/altera/clk-agilex5.c                 | 16 ++++++++++++++++
>>   3 files changed, 18 insertions(+)
>>
>> diff --git a/arch/arm/mach-socfpga/include/mach/handoff_soc64.h 
>> b/arch/arm/mach-socfpga/include/mach/handoff_soc64.h
>> index b8f2f73e283..39e3340f38c 100644
>> --- a/arch/arm/mach-socfpga/include/mach/handoff_soc64.h
>> +++ b/arch/arm/mach-socfpga/include/mach/handoff_soc64.h
>> @@ -81,6 +81,7 @@
>>   #define SOC64_HANDOFF_PERI_LEN             1
>>   #define SOC64_HANDOFF_SDRAM                (SOC64_HANDOFF_BASE + 0x634)
>>   #define SOC64_HANDOFF_SDRAM_LEN            5
>> +#define SOC64_HANDOFF_COMBOPHY_SEL_MASK     BIT(16)
>>   #endif
>>   
>>   #if IS_ENABLED(CONFIG_TARGET_SOCFPGA_STRATIX10)
>> diff --git a/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h 
>> b/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h
>> index f768a3a55cb..f95ee6ce226 100644
>> --- a/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h
>> +++ b/arch/arm/mach-socfpga/include/mach/system_manager_soc64.h
>> @@ -18,6 +18,7 @@ void populate_sysmgr_pinmux(void);
>>   #define SYSMGR_SOC64_MPU_STATUS                    0x10
>>   #define SYSMGR_SOC64_COMBOPHY_DFISEL               0xfc
>>   #define SYSMGR_SOC64_COMBOPHY_DFISEL_SDMMC 0x1
>> +#define SYSMGR_SOC64_COMBOPHY_DFISEL_NAND   0x0
>>   #define SYSMGR_SOC64_NANDGRP_L3MASTER              0x34
>>   #define SYSMGR_SOC64_USB0_L3MASTER         0x38
>>   #define SYSMGR_SOC64_USB1_L3MASTER         0x3c
>> diff --git a/drivers/clk/altera/clk-agilex5.c 
>> b/drivers/clk/altera/clk-agilex5.c
>> index fb1e72ffc5c..dd999e25aec 100644
>> --- a/drivers/clk/altera/clk-agilex5.c
>> +++ b/drivers/clk/altera/clk-agilex5.c
>> @@ -25,6 +25,9 @@
>>   #include <dt-bindings/clock/agilex5-clock.h>
>>   #include <wait_bit.h>
>>   #include <clk-uclass.h>
>> +#include <asm/arch/system_manager.h>
>> +#include <asm/arch/system_manager_soc64.h>
>> +#include <asm/arch/firewall.h>
> 
> 
> #include <asm/arch/firewall.h> does not appear to be used by this file 
> after the change. Please drop it unless a follow-up hunk needs it.
> 
> 
>>   
>>   DECLARE_GLOBAL_DATA_PTR;
>>   
>> @@ -244,10 +247,15 @@ static void clk_basic_init(struct udevice *dev,
>>      struct socfpga_clk_plat *plat = dev_get_plat(dev);
>>      u32 vcocalib;
>>      uintptr_t base_addr = (uintptr_t)plat->regs;
>> +    u32 len = SOC64_HANDOFF_PERI_LEN;
>> +    u32 handoff_table[len];
> 
> 
> u32 handoff_table[SOC64_HANDOFF_PERI_LEN]; is preferred to avoid 
> variable-length array
> 
>>   
>>      if (!cfg)
>>              return;
>>   
>> +    /* Read handoff for PWRGATE configuration */
> 
> 
> The new socfpga_handoff_read() is described as “Read handoff for PWRGATE 
> configuration”, but handoff_table[] is only used for COMBOPHY / 
> SYSMGR_SOC64_COMBOPHY_DFISEL selection. Please update or remove that 
> comment so it reflects the actual purpose (PERI handoff word used for 
> COMBOPHY select bit).
> 
> 
>> +    socfpga_handoff_read((void *)SOC64_HANDOFF_PERI, handoff_table, len);
> 
> 
> Update len with SOC64_HANDOFF_PERI_LEN
> 
> [...]
> 
> 
> Best regards,
> 
> Tien Fong
> 

Thanks for the review. Agreed on all points:
- drop the unused firewall.h include
- use a fixed-size handoff_table[SOC64_HANDOFF_PERI_LEN]
- fix the comment to describe COMBOPHY/DFISEL selection from the
  PERI handoff word
- pass SOC64_HANDOFF_PERI_LEN directly to socfpga_handoff_read()

I'll send v2 shortly.

Best regards,
Dinesh

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