[PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Mateus Lima Alves]

This patch adds CPLD support via IFC to the ls1021a-iot board.

Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
---
Changes since v1:
Reselected CONFIG_CMD_MII in file configs/ls1021aiot_sdcard_defconfig.
---
 board/freescale/ls1021aiot/ls1021aiot.c |  5 ++++
 configs/ls1021aiot_sdcard_defconfig     |  1 +
 drivers/misc/Kconfig                    |  6 ++++-
 include/configs/ls1021aiot.h            | 34 +++++++++++++++++++++++++
 4 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/board/freescale/ls1021aiot/ls1021aiot.c b/board/freescale/ls1021aiot/ls1021aiot.c
index 4eff0a3fee0..52a3c3abdb4 100644
--- a/board/freescale/ls1021aiot/ls1021aiot.c
+++ b/board/freescale/ls1021aiot/ls1021aiot.c
@@ -21,6 +21,7 @@
 #include <asm/sections.h>
 #include <fsl_csu.h>
 #include <fsl_immap.h>
+#include <fsl_ifc.h>
 #include <netdev.h>
 #include <fsl_mdio.h>
 #include <tsec.h>
@@ -120,6 +121,10 @@ int board_early_init_f(void)
 
 #endif
 
+#ifdef CONFIG_FSL_IFC
+	init_early_memctl_regs();
+#endif
+
 	arch_soc_init();
 
 	return 0;
diff --git a/configs/ls1021aiot_sdcard_defconfig b/configs/ls1021aiot_sdcard_defconfig
index 6b32150e408..78b81c1895e 100644
--- a/configs/ls1021aiot_sdcard_defconfig
+++ b/configs/ls1021aiot_sdcard_defconfig
@@ -106,3 +106,4 @@ CONFIG_FSL_QSPI=y
 CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
+CONFIG_FSL_IFC=y
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index dde773ab6b1..229a50f266f 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -694,7 +694,11 @@ config ESM_PMIC
 	  typically to reboot the board in error condition.
 
 config FSL_IFC
-	bool
+	bool "Freescale Integrated Flash Controller"
+	help
+	  This driver is for the Integrated Flash Controller(IFC) module
+	  available in Freescale SoCs. This controller allows to handle
+	  devices such as NOR, NAND, FPGA and ASIC etc.
 
 config SL28CPLD
 	bool "Enable Kontron sl28cpld multi-function driver"
diff --git a/include/configs/ls1021aiot.h b/include/configs/ls1021aiot.h
index 971a393817a..59acf00b8e5 100644
--- a/include/configs/ls1021aiot.h
+++ b/include/configs/ls1021aiot.h
@@ -44,6 +44,40 @@
 #define CFG_SYS_DDR_SDRAM_BASE	0x80000000UL
 #define CFG_SYS_SDRAM_BASE		CFG_SYS_DDR_SDRAM_BASE
 
+/* CPLD */
+
+#define CFG_SYS_CPLD_BASE              0x7fb00000
+#define CPLD_BASE_PHYS                 CFG_SYS_CPLD_BASE
+
+#define CFG_SYS_FPGA_CSPR_EXT          (0x0)
+#define CFG_SYS_FPGA_CSPR              (CSPR_PHYS_ADDR(CPLD_BASE_PHYS) | \
+                                        CSPR_PORT_SIZE_8 | \
+                                        CSPR_MSEL_GPCM | \
+                                        CSPR_V)
+#define CFG_SYS_FPGA_AMASK             IFC_AMASK(64 * 1024)
+#define CFG_SYS_FPGA_CSOR              (CSOR_NOR_ADM_SHIFT(4) | \
+                                        CSOR_NOR_NOR_MODE_AVD_NOR | \
+                                        CSOR_NOR_TRHZ_80)
+
+/* CPLD Timing parameters for IFC GPCM */
+#define CFG_SYS_FPGA_FTIM0             (FTIM0_GPCM_TACSE(0xf) | \
+                                        FTIM0_GPCM_TEADC(0xf) | \
+                                        FTIM0_GPCM_TEAHC(0xf))
+#define CFG_SYS_FPGA_FTIM1             (FTIM1_GPCM_TACO(0xff) | \
+                                        FTIM1_GPCM_TRAD(0x3f))
+#define CFG_SYS_FPGA_FTIM2             (FTIM2_GPCM_TCS(0xf) | \
+                                        FTIM2_GPCM_TCH(0xf) | \
+                                        FTIM2_GPCM_TWP(0xff))
+#define CFG_SYS_FPGA_FTIM3             0x0
+#define CFG_SYS_CSPR0_EXT              CFG_SYS_FPGA_CSPR_EXT
+#define CFG_SYS_CSPR0                  CFG_SYS_FPGA_CSPR
+#define CFG_SYS_AMASK0                 CFG_SYS_FPGA_AMASK
+#define CFG_SYS_CSOR0                  CFG_SYS_FPGA_CSOR
+#define CFG_SYS_CS0_FTIM0              CFG_SYS_FPGA_FTIM0
+#define CFG_SYS_CS0_FTIM1              CFG_SYS_FPGA_FTIM1
+#define CFG_SYS_CS0_FTIM2              CFG_SYS_FPGA_FTIM2
+#define CFG_SYS_CS0_FTIM3              CFG_SYS_FPGA_FTIM3
+
 /*
  * Serial Port
  */
-- 
2.43.0

Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Peng Fan]

On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
>This patch adds CPLD support via IFC to the ls1021a-iot board.
>
>Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>

CI report build failure.

  CC      drivers/video/hitachi-tx10d07vm0baa.o
In file included from drivers/misc/fsl_ifc.c:8:
include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or directory
   16 | #include <asm/ppc.h>
      |          ^~~~~~~~~~~
compilation terminated.
make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o] Error 1
make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
make[2]: *** Waiting for unfinished jobs....
  CC      drivers/rtc/ht1380.o
  CC      drivers/video/hitachi_tx18d42vm_lcd.o
  CC      drivers/rtc/i2c_rtc_emul.o

make[1]: *** [Makefile:2191: drivers] Error 2
make: *** [Makefile:362: __build_one_by_one] Error 2
Cleaning up project directory and file based variables

Regards
Peng

Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Mateus Lima]

On Wed, Jan 21, 2026 at 11:13 PM Peng Fan <peng.fan@oss.nxp.com> wrote:

> On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
> >This patch adds CPLD support via IFC to the ls1021a-iot board.
> >
> >Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
>
> CI report build failure.
>
>   CC      drivers/video/hitachi-tx10d07vm0baa.o
> In file included from drivers/misc/fsl_ifc.c:8:
> include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or directory
>    16 | #include <asm/ppc.h>
>       |          ^~~~~~~~~~~
> compilation terminated.
> make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o] Error 1
> make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
> make[2]: *** Waiting for unfinished jobs....
>   CC      drivers/rtc/ht1380.o
>   CC      drivers/video/hitachi_tx18d42vm_lcd.o
>   CC      drivers/rtc/i2c_rtc_emul.o
>
> make[1]: *** [Makefile:2191: drivers] Error 2
> make: *** [Makefile:362: __build_one_by_one] Error 2
> Cleaning up project directory and file based variables
>
> Regards
> Peng
>
Hi Peng,

Thank you for the test, and apologies for not having validated the patch on
other targets.
In fact, this driver was not being used by any target (neither ARM nor PPC)
and after this patch it became enabled again. However, PPC targets fail
when trying to include the asm/ppc.h header, which is not available for
some reason.

For now, I am thinking of submitting a v3 of the patch adding an explicit
dependency on ARM, something like:

+ depends on ARM

This way we would avoid building the driver for PPC targets.
What do you think about this approach?

Thanks again for the report and the feedback.

BR,
Mateus

Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Mateus Lima]

On Thu, Jan 22, 2026 at 10:12 AM Mateus Lima <mateuslima.ti@gmail.com>
wrote:

> On Wed, Jan 21, 2026 at 11:13 PM Peng Fan <peng.fan@oss.nxp.com> wrote:
>
>> On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
>> >This patch adds CPLD support via IFC to the ls1021a-iot board.
>> >
>> >Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
>>
>> CI report build failure.
>>
>>   CC      drivers/video/hitachi-tx10d07vm0baa.o
>> In file included from drivers/misc/fsl_ifc.c:8:
>> include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or directory
>>    16 | #include <asm/ppc.h>
>>       |          ^~~~~~~~~~~
>> compilation terminated.
>> make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o] Error 1
>> make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
>> make[2]: *** Waiting for unfinished jobs....
>>   CC      drivers/rtc/ht1380.o
>>   CC      drivers/video/hitachi_tx18d42vm_lcd.o
>>   CC      drivers/rtc/i2c_rtc_emul.o
>>
>> make[1]: *** [Makefile:2191: drivers] Error 2
>> make: *** [Makefile:362: __build_one_by_one] Error 2
>> Cleaning up project directory and file based variables
>>
>> Regards
>> Peng
>>
> Hi Peng,
>
> Thank you for the test, and apologies for not having validated the patch
> on other targets.
> In fact, this driver was not being used by any target (neither ARM nor
> PPC) and after this patch it became enabled again. However, PPC targets
> fail when trying to include the asm/ppc.h header, which is not available
> for some reason.
>
> For now, I am thinking of submitting a v3 of the patch adding an explicit
> dependency on ARM, something like:
>
> + depends on ARM
>
> This way we would avoid building the driver for PPC targets.
> What do you think about this approach?
>
> Thanks again for the report and the feedback.
>
> BR,
> Mateus
>
Hi Peng,

I have just run a pipeline in the U-Boot Azure DevOps environment and all
targets were built successfully. Please take a look:

https://dev.azure.com/u-boot/u-boot/_build/results?buildId=12700&view=results

Could you please let me know what you did differently that caused the build
to fail?

BR,
Mateus

Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Peng Fan]

On Thu, Jan 22, 2026 at 10:12:36AM -0300, Mateus Lima wrote:
>On Wed, Jan 21, 2026 at 11:13 PM Peng Fan <peng.fan@oss.nxp.com> wrote:
>
>> On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
>> >This patch adds CPLD support via IFC to the ls1021a-iot board.
>> >
>> >Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
>>
>> CI report build failure.
>>
>>   CC      drivers/video/hitachi-tx10d07vm0baa.o
>> In file included from drivers/misc/fsl_ifc.c:8:
>> include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or directory
>>    16 | #include <asm/ppc.h>
>>       |          ^~~~~~~~~~~
>> compilation terminated.
>> make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o] Error 1
>> make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
>> make[2]: *** Waiting for unfinished jobs....
>>   CC      drivers/rtc/ht1380.o
>>   CC      drivers/video/hitachi_tx18d42vm_lcd.o
>>   CC      drivers/rtc/i2c_rtc_emul.o
>>
>> make[1]: *** [Makefile:2191: drivers] Error 2
>> make: *** [Makefile:362: __build_one_by_one] Error 2
>> Cleaning up project directory and file based variables
>>
>> Regards
>> Peng
>>
>Hi Peng,
>
>Thank you for the test, and apologies for not having validated the patch on
>other targets.
>In fact, this driver was not being used by any target (neither ARM nor PPC)
>and after this patch it became enabled again. However, PPC targets fail
>when trying to include the asm/ppc.h header, which is not available for
>some reason.
>
>For now, I am thinking of submitting a v3 of the patch adding an explicit
>dependency on ARM, something like:
>
>+ depends on ARM
>
>This way we would avoid building the driver for PPC targets.
>What do you think about this approach?

It should be ok.

Thanks,
Peng

>
>Thanks again for the report and the feedback.
>
>BR,
>Mateus

Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Tom Rini]

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On Mon, Jan 26, 2026 at 10:11:20AM +0800, Peng Fan wrote:
> On Thu, Jan 22, 2026 at 10:12:36AM -0300, Mateus Lima wrote:
> >On Wed, Jan 21, 2026 at 11:13 PM Peng Fan <peng.fan@oss.nxp.com> wrote:
> >
> >> On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
> >> >This patch adds CPLD support via IFC to the ls1021a-iot board.
> >> >
> >> >Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
> >>
> >> CI report build failure.
> >>
> >>   CC      drivers/video/hitachi-tx10d07vm0baa.o
> >> In file included from drivers/misc/fsl_ifc.c:8:
> >> include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or directory
> >>    16 | #include <asm/ppc.h>
> >>       |          ^~~~~~~~~~~
> >> compilation terminated.
> >> make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o] Error 1
> >> make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
> >> make[2]: *** Waiting for unfinished jobs....
> >>   CC      drivers/rtc/ht1380.o
> >>   CC      drivers/video/hitachi_tx18d42vm_lcd.o
> >>   CC      drivers/rtc/i2c_rtc_emul.o
> >>
> >> make[1]: *** [Makefile:2191: drivers] Error 2
> >> make: *** [Makefile:362: __build_one_by_one] Error 2
> >> Cleaning up project directory and file based variables
> >>
> >> Regards
> >> Peng
> >>
> >Hi Peng,
> >
> >Thank you for the test, and apologies for not having validated the patch on
> >other targets.
> >In fact, this driver was not being used by any target (neither ARM nor PPC)
> >and after this patch it became enabled again. However, PPC targets fail
> >when trying to include the asm/ppc.h header, which is not available for
> >some reason.
> >
> >For now, I am thinking of submitting a v3 of the patch adding an explicit
> >dependency on ARM, something like:
> >
> >+ depends on ARM
> >
> >This way we would avoid building the driver for PPC targets.
> >What do you think about this approach?
> 
> It should be ok.

This has lead to:
WARNING: unmet direct dependencies detected for FSL_IFC
  Depends on [n]: ARM [=n]
  Selected by [y]:
  - ARCH_P1010 [=y] && PPC [=y] && MPC85xx [=y]

WARNING: unmet direct dependencies detected for FSL_IFC
  Depends on [n]: ARM [=n]
  Selected by [y]:
  - ARCH_P1010 [=y] && PPC [=y] && MPC85xx [=y]

For example on P1010RDB-PB_SPIFLASH.

-- 
Tom

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Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Mateus Lima]

On Wed, Jan 28, 2026 at 1:47 PM Tom Rini <trini@konsulko.com> wrote:

> On Mon, Jan 26, 2026 at 10:11:20AM +0800, Peng Fan wrote:
> > On Thu, Jan 22, 2026 at 10:12:36AM -0300, Mateus Lima wrote:
> > >On Wed, Jan 21, 2026 at 11:13 PM Peng Fan <peng.fan@oss.nxp.com> wrote:
> > >
> > >> On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
> > >> >This patch adds CPLD support via IFC to the ls1021a-iot board.
> > >> >
> > >> >Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
> > >>
> > >> CI report build failure.
> > >>
> > >>   CC      drivers/video/hitachi-tx10d07vm0baa.o
> > >> In file included from drivers/misc/fsl_ifc.c:8:
> > >> include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or
> directory
> > >>    16 | #include <asm/ppc.h>
> > >>       |          ^~~~~~~~~~~
> > >> compilation terminated.
> > >> make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o]
> Error 1
> > >> make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
> > >> make[2]: *** Waiting for unfinished jobs....
> > >>   CC      drivers/rtc/ht1380.o
> > >>   CC      drivers/video/hitachi_tx18d42vm_lcd.o
> > >>   CC      drivers/rtc/i2c_rtc_emul.o
> > >>
> > >> make[1]: *** [Makefile:2191: drivers] Error 2
> > >> make: *** [Makefile:362: __build_one_by_one] Error 2
> > >> Cleaning up project directory and file based variables
> > >>
> > >> Regards
> > >> Peng
> > >>
> > >Hi Peng,
> > >
> > >Thank you for the test, and apologies for not having validated the
> patch on
> > >other targets.
> > >In fact, this driver was not being used by any target (neither ARM nor
> PPC)
> > >and after this patch it became enabled again. However, PPC targets fail
> > >when trying to include the asm/ppc.h header, which is not available for
> > >some reason.
> > >
> > >For now, I am thinking of submitting a v3 of the patch adding an
> explicit
> > >dependency on ARM, something like:
> > >
> > >+ depends on ARM
> > >
> > >This way we would avoid building the driver for PPC targets.
> > >What do you think about this approach?
> >
> > It should be ok.
>
> This has lead to:
> WARNING: unmet direct dependencies detected for FSL_IFC
>   Depends on [n]: ARM [=n]
>   Selected by [y]:
>   - ARCH_P1010 [=y] && PPC [=y] && MPC85xx [=y]
>
> WARNING: unmet direct dependencies detected for FSL_IFC
>   Depends on [n]: ARM [=n]
>   Selected by [y]:
>   - ARCH_P1010 [=y] && PPC [=y] && MPC85xx [=y]
>
> For example on P1010RDB-PB_SPIFLASH.
>
> --
> Tom
>
Hi Tom,

Yes, I noticed that this warning is appearing now, and before this patch,
neither this flag nor fsl_ifc were properly used for compiling PPC targets.
Now that I've added more information about this option, it's being
considered again during compilation.

But in this thread, I commented to Peng Fan that it was possible to build
for PPC targets, meaning we wouldn't need to restrict this to ARM targets,
but I don't know what setup was used to crash the mentioned PPC target, but
in the U-Boot Azure DevOps environment, all targets were built successfully.

https://dev.azure.com/u-boot/u-boot/_build/results?buildId=12700&view=results

We can use patch v2 in this case, or could Peng Fan please show me how he
made his build break? Is it a different environment?

BR,
Mateus

Re: [PATCH v2] armv7: Add CPLD support via IFC to the ls1021a-iot board.

[Tom Rini]

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On Wed, Jan 28, 2026 at 02:06:22PM -0300, Mateus Lima wrote:
> On Wed, Jan 28, 2026 at 1:47 PM Tom Rini <trini@konsulko.com> wrote:
> 
> > On Mon, Jan 26, 2026 at 10:11:20AM +0800, Peng Fan wrote:
> > > On Thu, Jan 22, 2026 at 10:12:36AM -0300, Mateus Lima wrote:
> > > >On Wed, Jan 21, 2026 at 11:13 PM Peng Fan <peng.fan@oss.nxp.com> wrote:
> > > >
> > > >> On Tue, Jan 13, 2026 at 11:23:01AM -0300, Mateus Lima Alves wrote:
> > > >> >This patch adds CPLD support via IFC to the ls1021a-iot board.
> > > >> >
> > > >> >Signed-off-by: Mateus Lima Alves <mateuslima.ti@gmail.com>
> > > >>
> > > >> CI report build failure.
> > > >>
> > > >>   CC      drivers/video/hitachi-tx10d07vm0baa.o
> > > >> In file included from drivers/misc/fsl_ifc.c:8:
> > > >> include/fsl_ifc.h:16:10: fatal error: asm/ppc.h: No such file or
> > directory
> > > >>    16 | #include <asm/ppc.h>
> > > >>       |          ^~~~~~~~~~~
> > > >> compilation terminated.
> > > >> make[3]: *** [scripts/Makefile.build:271: drivers/misc/fsl_ifc.o]
> > Error 1
> > > >> make[2]: *** [scripts/Makefile.build:492: drivers/misc] Error 2
> > > >> make[2]: *** Waiting for unfinished jobs....
> > > >>   CC      drivers/rtc/ht1380.o
> > > >>   CC      drivers/video/hitachi_tx18d42vm_lcd.o
> > > >>   CC      drivers/rtc/i2c_rtc_emul.o
> > > >>
> > > >> make[1]: *** [Makefile:2191: drivers] Error 2
> > > >> make: *** [Makefile:362: __build_one_by_one] Error 2
> > > >> Cleaning up project directory and file based variables
> > > >>
> > > >> Regards
> > > >> Peng
> > > >>
> > > >Hi Peng,
> > > >
> > > >Thank you for the test, and apologies for not having validated the
> > patch on
> > > >other targets.
> > > >In fact, this driver was not being used by any target (neither ARM nor
> > PPC)
> > > >and after this patch it became enabled again. However, PPC targets fail
> > > >when trying to include the asm/ppc.h header, which is not available for
> > > >some reason.
> > > >
> > > >For now, I am thinking of submitting a v3 of the patch adding an
> > explicit
> > > >dependency on ARM, something like:
> > > >
> > > >+ depends on ARM
> > > >
> > > >This way we would avoid building the driver for PPC targets.
> > > >What do you think about this approach?
> > >
> > > It should be ok.
> >
> > This has lead to:
> > WARNING: unmet direct dependencies detected for FSL_IFC
> >   Depends on [n]: ARM [=n]
> >   Selected by [y]:
> >   - ARCH_P1010 [=y] && PPC [=y] && MPC85xx [=y]
> >
> > WARNING: unmet direct dependencies detected for FSL_IFC
> >   Depends on [n]: ARM [=n]
> >   Selected by [y]:
> >   - ARCH_P1010 [=y] && PPC [=y] && MPC85xx [=y]
> >
> > For example on P1010RDB-PB_SPIFLASH.
> >
> > --
> > Tom
> >
> Hi Tom,
> 
> Yes, I noticed that this warning is appearing now, and before this patch,

I'm not sure what you mean by this. This change introduced the warning.

-- 
Tom

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