[PATCH v2 02/11] sunxi: Split V3 and V3s support with a common option
Paul Kocialkowski
paulk at sys-base.io
Wed Aug 6 19:24:47 CEST 2025
Hi,
Le Wed 06 Aug 25, 01:21, Andre Przywara a écrit :
> On Tue, 5 Aug 2025 19:48:18 +0200
> Paul Kocialkowski <paulk at sys-base.io> wrote:
>
> Hi Paul,
>
> > From: Paul Kocialkowski <contact at paulk.fr>
> >
> > There are a few notable differences that are relevant to U-Boot, including:
> > - different DRAM configuration due to the co-packaged DRAM chip in V3s;
> > - use of an external PMIC (typically an AXP209) on V3;
> > - extra pins available on V3, e.g. for UART1.
>
> Mmmh, to be honest I am not really convinced this is useful. The patch
> below looks roughly like a big s/MACH_SUN8I_V3S/MACH_SUN8I_V3_V3S/,
> which I am not sure is really worth it. We had not super accurate names
> before, after all those are just marketing names that Allwinner once
> came up with. So we use MACH_SUN55I_A523, even though it's mostly
> A527 or T527 chips, really, for instance.
Yes I think this case is a bit different because there is actually a difference
not just in the packaging and pins available but also because a dram die is
co-packaged with the sun8i chip.
> For the three actually differing items you mention above: I think we
> can treat the DRAM and external PMIC like board options, and could
> describe the extra pins either unconditionally or drop them at all (see
> my comment there).
>
> What do you think? Is that distinction on the Kconfig level really
> necessary?
I think it is preferable because the DRAM die co-packaged with the chip is
definitely not a board-specific choice, so I would rather see the DRAM-related
details handled by the common Kconfig rather than duplicated over each V3s
board.
For the PMIC it mostly remains a board-specific option and is not enabled by
default anyway, it's just the defaults that are updated. Apparently there are
designs with V3s that use an AXP209 PMIC so the defaults could actually go
to the common option.
Another approach here could be to keep a single MACH_SUN8I_V3 option and have
an extra one to select the co-packaged DRAM that only V3s boards would select
in their config. If it's the rename that bothers you we could keep the
MACH_SUN8I_V3S name but I think it would be significantly more confusing.
What do you think?
Paul
> Cheers,
> Andre
>
> > Move the exiting V3s config to a common option and introduce specific options
> > for V3s and V3 to set specific aspects and reflect this all round the tree.
> >
> > Also update the pinecube config to reflect the updated defaults.
> >
> > Signed-off-by: Paul Kocialkowski <contact at paulk.fr>
> > ---
> > arch/arm/dts/Makefile | 2 +-
> > arch/arm/include/asm/arch-sunxi/cpu.h | 2 +-
> > arch/arm/include/asm/arch-sunxi/cpu_sun4i.h | 2 +-
> > arch/arm/mach-sunxi/Kconfig | 41 +++++++++++++--------
> > arch/arm/mach-sunxi/board.c | 2 +-
> > arch/arm/mach-sunxi/cpu_info.c | 2 +
> > arch/arm/mach-sunxi/dram_sunxi_dw.c | 18 ++++-----
> > arch/arm/mach-sunxi/spl_spi_sunxi.c | 2 +-
> > board/sunxi/board.c | 2 +-
> > configs/pinecube_defconfig | 3 +-
> > drivers/clk/sunxi/Kconfig | 2 +-
> > drivers/phy/allwinner/Kconfig | 2 +-
> > drivers/pinctrl/sunxi/Kconfig | 2 +-
> > drivers/power/Kconfig | 2 +-
> > 14 files changed, 47 insertions(+), 37 deletions(-)
> >
> > diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> > index 0dc7e190eb93..3d93679058c8 100644
> > --- a/arch/arm/dts/Makefile
> > +++ b/arch/arm/dts/Makefile
> > @@ -646,7 +646,7 @@ dtb-$(CONFIG_MACH_SUN8I_R40) += \
> > sun8i-r40-oka40i-c.dtb \
> > sun8i-t3-cqa3t-bv3.dtb \
> > sun8i-v40-bananapi-m2-berry.dtb
> > -dtb-$(CONFIG_MACH_SUN8I_V3S) += \
> > +dtb-$(CONFIG_MACH_SUN8I_V3_V3S) += \
> > sun8i-s3-elimo-initium.dtb \
> > sun8i-s3-pinecube.dtb \
> > sun8i-v3-sl631-imx179.dtb \
> > diff --git a/arch/arm/include/asm/arch-sunxi/cpu.h b/arch/arm/include/asm/arch-sunxi/cpu.h
> > index 768c6572d6b7..bd9dd97b890b 100644
> > --- a/arch/arm/include/asm/arch-sunxi/cpu.h
> > +++ b/arch/arm/include/asm/arch-sunxi/cpu.h
> > @@ -18,7 +18,7 @@
> >
> > #define SOCID_A64 0x1689
> > #define SOCID_H3 0x1680
> > -#define SOCID_V3S 0x1681
> > +#define SOCID_V3_V3S 0x1681
> > #define SOCID_H5 0x1718
> > #define SOCID_R40 0x1701
> >
> > diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h b/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
> > index f023a4cfd934..3212b818286c 100644
> > --- a/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
> > +++ b/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
> > @@ -13,7 +13,7 @@
> >
> > #if defined(CONFIG_SUNXI_GEN_SUN6I) && \
> > !defined(CONFIG_MACH_SUN8I_R40) && \
> > - !defined(CONFIG_MACH_SUN8I_V3S)
> > + !defined(CONFIG_MACH_SUN8I_V3_V3S)
> > #define SUNXI_SRAM_A2_BASE 0x00040000
> > #ifdef CONFIG_MACH_SUN8I_H3
> > #define SUNXI_SRAM_A2_SIZE (48 * 1024) /* 16+32 kiB */
> > diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> > index 5a696095586e..f0faa9f80a23 100644
> > --- a/arch/arm/mach-sunxi/Kconfig
> > +++ b/arch/arm/mach-sunxi/Kconfig
> > @@ -476,17 +476,13 @@ config MACH_SUN8I_R528
> > select SUPPORT_SPL
> > select DRAM_SUN20I_D1
> >
> > +config MACH_SUN8I_V3
> > + bool "sun8i (Allwinner V3/S3/S3L)"
> > + select MACH_SUN8I_V3_V3S
> > +
> > config MACH_SUN8I_V3S
> > - bool "sun8i (Allwinner V3/V3s/S3/S3L)"
> > - select CPU_V7A
> > - select CPU_V7_HAS_NONSEC
> > - select CPU_V7_HAS_VIRT
> > - select ARCH_SUPPORT_PSCI
> > - select SUNXI_GEN_SUN6I
> > - select SUNXI_DRAM_DW
> > - select SUNXI_DRAM_DW_16BIT
> > - select SUPPORT_SPL
> > - select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
> > + bool "sun8i (Allwinner V3s)"
> > + select MACH_SUN8I_V3_V3S
> >
> > config MACH_SUN9I
> > bool "sun9i (Allwinner A80)"
> > @@ -562,7 +558,20 @@ config MACH_SUN8I
> > default y if MACH_SUN8I_A83T
> > default y if MACH_SUNXI_H3_H5
> > default y if MACH_SUN8I_R40
> > - default y if MACH_SUN8I_V3S
> > + default y if MACH_SUN8I_V3_V3S
> > +
> > +config MACH_SUN8I_V3_V3S
> > + bool "sun8i (Allwinner V3/V3s/S3/S3L)"
> > + depends on MACH_SUN8I_V3 || MACH_SUN8I_V3S
> > + select CPU_V7A
> > + select CPU_V7_HAS_NONSEC
> > + select CPU_V7_HAS_VIRT
> > + select ARCH_SUPPORT_PSCI
> > + select SUNXI_GEN_SUN6I
> > + select SUNXI_DRAM_DW
> > + select SUNXI_DRAM_DW_16BIT
> > + select SUPPORT_SPL
> > + select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
> >
> > config RESERVE_ALLWINNER_BOOT0_HEADER
> > bool "reserve space for Allwinner boot0 header"
> > @@ -719,7 +728,7 @@ config DRAM_CLK
> > default 792 if MACH_SUN9I
> > default 648 if MACH_SUN8I_R40
> > default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || \
> > - MACH_SUN8I_V3S
> > + MACH_SUN8I_V3_V3S
> > default 312 if MACH_SUN6I || MACH_SUN8I
> > default 672 if MACH_SUN50I
> > default 744 if MACH_SUN50I_H6
> > @@ -747,7 +756,7 @@ config DRAM_ZQ
> > default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || \
> > MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_A83T
> > default 127 if MACH_SUN7I
> > - default 14779 if MACH_SUN8I_V3S
> > + default 14779 if MACH_SUN8I_V3_V3S
> > default 3881979 if MACH_SUNXI_H3_H5 || MACH_SUN8I_R40 || MACH_SUN50I_H6
> > default 4145117 if MACH_SUN9I
> > default 3881915 if MACH_SUN50I
> > @@ -877,7 +886,7 @@ config SYS_SOC
> > config SUNXI_MINIMUM_DRAM_MB
> > int "minimum DRAM size"
> > default 32 if MACH_SUNIV
> > - default 64 if MACH_SUN8I_V3S
> > + default 64 if MACH_SUN8I_V3_V3S
> > default 256
> > ---help---
> > Minimum DRAM size expected on the board. Traditionally we assumed
> > @@ -963,7 +972,7 @@ config VIDEO_SUNXI
> > depends on !MACH_SUN8I_A83T
> > depends on !MACH_SUNXI_H3_H5
> > depends on !MACH_SUN8I_R40
> > - depends on !MACH_SUN8I_V3S
> > + depends on !MACH_SUN8I_V3_V3S
> > depends on !MACH_SUN9I
> > depends on !MACH_SUN50I
> > depends on !SUN50I_GEN_H6
> > @@ -1186,7 +1195,7 @@ config SPL_STACK_R_ADDR
> >
> > config SPL_SPI_SUNXI
> > bool "Support for SPI Flash on Allwinner SoCs in SPL"
> > - depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNXI_H3_H5 || MACH_SUN50I || MACH_SUN8I_R40 || MACH_SUN8I_V3S || SUN50I_GEN_H6 || MACH_SUNIV || SUNXI_GEN_NCAT2
> > + depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNXI_H3_H5 || MACH_SUN50I || MACH_SUN8I_R40 || MACH_SUN8I_V3_V3S || SUN50I_GEN_H6 || MACH_SUNIV || SUNXI_GEN_NCAT2
> > help
> > Enable support for SPI Flash. This option allows SPL to read from
> > sunxi SPI Flash. It uses the same method as the boot ROM, so does
> > diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c
> > index fb4837c2082d..a1a02b0fae50 100644
> > --- a/arch/arm/mach-sunxi/board.c
> > +++ b/arch/arm/mach-sunxi/board.c
> > @@ -149,7 +149,7 @@ static int gpio_init(void)
> > sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_A83T_GPB_UART0);
> > sunxi_gpio_set_cfgpin(SUNXI_GPB(10), SUN8I_A83T_GPB_UART0);
> > sunxi_gpio_set_pull(SUNXI_GPB(10), SUNXI_GPIO_PULL_UP);
> > -#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_V3S)
> > +#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_V3_V3S)
> > sunxi_gpio_set_cfgpin(SUNXI_GPB(8), SUN8I_V3S_GPB_UART0);
> > sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_V3S_GPB_UART0);
> > sunxi_gpio_set_pull(SUNXI_GPB(9), SUNXI_GPIO_PULL_UP);
> > diff --git a/arch/arm/mach-sunxi/cpu_info.c b/arch/arm/mach-sunxi/cpu_info.c
> > index c3a51d9956ec..5b03dcdc354d 100644
> > --- a/arch/arm/mach-sunxi/cpu_info.c
> > +++ b/arch/arm/mach-sunxi/cpu_info.c
> > @@ -90,6 +90,8 @@ int print_cpuinfo(void)
> > printf("CPU: Allwinner H3 (SUN8I %04x)\n", sunxi_get_sram_id());
> > #elif defined CONFIG_MACH_SUN8I_R40
> > printf("CPU: Allwinner R40 (SUN8I %04x)\n", sunxi_get_sram_id());
> > +#elif defined CONFIG_MACH_SUN8I_V3
> > + printf("CPU: Allwinner V3/S3/S3L (SUN8I %04x)\n", sunxi_get_sram_id());
> > #elif defined CONFIG_MACH_SUN8I_V3S
> > printf("CPU: Allwinner V3s (SUN8I %04x)\n", sunxi_get_sram_id());
> > #elif defined CONFIG_MACH_SUN8I_R528
> > diff --git a/arch/arm/mach-sunxi/dram_sunxi_dw.c b/arch/arm/mach-sunxi/dram_sunxi_dw.c
> > index 4ed295909ceb..56d03027b933 100644
> > --- a/arch/arm/mach-sunxi/dram_sunxi_dw.c
> > +++ b/arch/arm/mach-sunxi/dram_sunxi_dw.c
> > @@ -254,7 +254,7 @@ static void mctl_set_master_priority(uint16_t socid)
> > case SOCID_H3:
> > mctl_set_master_priority_h3();
> > return;
> > - case SOCID_V3S:
> > + case SOCID_V3_V3S:
> > mctl_set_master_priority_v3s();
> > return;
> > case SOCID_A64:
> > @@ -445,7 +445,7 @@ static void mctl_sys_init(uint16_t socid, struct dram_para *para)
> > CCM_DRAMCLK_CFG_DIV(1) |
> > CCM_DRAMCLK_CFG_SRC_PLL11 |
> > CCM_DRAMCLK_CFG_UPD);
> > - } else if (socid == SOCID_H3 || socid == SOCID_H5 || socid == SOCID_V3S) {
> > + } else if (socid == SOCID_H3 || socid == SOCID_H5 || socid == SOCID_V3_V3S) {
> > clock_set_pll5(CONFIG_DRAM_CLK * 2 * 1000000, false);
> > clrsetbits_le32(&ccm->dram_clk_cfg,
> > CCM_DRAMCLK_CFG_DIV_MASK |
> > @@ -528,7 +528,7 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
> > /* dphy & aphy phase select 270 degree */
> > clrsetbits_le32(&mctl_ctl->pgcr[2], (0x3 << 10) | (0x3 << 8),
> > (0x1 << 10) | (0x2 << 8));
> > - } else if (socid == SOCID_V3S) {
> > + } else if (socid == SOCID_V3_V3S) {
> > /* dx ddr_clk & hdr_clk dynamic mode */
> > clrbits_le32(&mctl_ctl->pgcr[0], (0x3 << 14) | (0x3 << 12));
> >
> > @@ -567,7 +567,7 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
> > mctl_set_bit_delays(para);
> > udelay(50);
> >
> > - if (socid == SOCID_V3S) {
> > + if (socid == SOCID_V3_V3S) {
> > mctl_v3s_zq_calibration_quirk(para);
> >
> > mctl_phy_init(PIR_PLLINIT | PIR_DCAL | PIR_PHYRST |
> > @@ -636,7 +636,7 @@ static int mctl_channel_init(uint16_t socid, struct dram_para *para)
> > udelay(10);
> >
> > /* set PGCR3, CKE polarity */
> > - if (socid == SOCID_H3 || socid == SOCID_V3S)
> > + if (socid == SOCID_H3 || socid == SOCID_V3_V3S)
> > writel(0x00aa0060, &mctl_ctl->pgcr[3]);
> > else if (socid == SOCID_A64 || socid == SOCID_H5 || socid == SOCID_R40)
> > writel(0xc0aa0060, &mctl_ctl->pgcr[3]);
> > @@ -758,7 +758,7 @@ static void mctl_auto_detect_dram_size(uint16_t socid, struct dram_para *para)
> > 0, 0, 0, 0, 0, 0, 0, 0, \
> > 0, 0, 0, 0, 0, 0, 0 }
> >
> > -#define SUN8I_V3S_DX_READ_DELAYS \
> > +#define SUN8I_V3S_DX_READ_DELAYS \
> > {{ 8, 8, 8, 8, 8, 8, 8, 8, 8, 0, 0 }, \
> > { 7, 7, 7, 7, 7, 7, 7, 7, 7, 0, 0 }, \
> > { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, \
> > @@ -851,7 +851,7 @@ unsigned long sunxi_dram_init(void)
> > .dx_read_delays = SUN8I_H3_DX_READ_DELAYS,
> > .dx_write_delays = SUN8I_H3_DX_WRITE_DELAYS,
> > .ac_delays = SUN8I_H3_AC_DELAYS,
> > -#elif defined(CONFIG_MACH_SUN8I_V3S)
> > +#elif defined(CONFIG_MACH_SUN8I_V3_V3S)
> > .dx_read_delays = SUN8I_V3S_DX_READ_DELAYS,
> > .dx_write_delays = SUN8I_V3S_DX_WRITE_DELAYS,
> > .ac_delays = SUN8I_V3S_AC_DELAYS,
> > @@ -878,8 +878,8 @@ unsigned long sunxi_dram_init(void)
> > uint16_t socid = SOCID_H3;
> > #elif defined(CONFIG_MACH_SUN8I_R40)
> > uint16_t socid = SOCID_R40;
> > -#elif defined(CONFIG_MACH_SUN8I_V3S)
> > - uint16_t socid = SOCID_V3S;
> > +#elif defined(CONFIG_MACH_SUN8I_V3_V3S)
> > + uint16_t socid = SOCID_V3_V3S;
> > #elif defined(CONFIG_MACH_SUN50I)
> > uint16_t socid = SOCID_A64;
> > #elif defined(CONFIG_MACH_SUN50I_H5)
> > diff --git a/arch/arm/mach-sunxi/spl_spi_sunxi.c b/arch/arm/mach-sunxi/spl_spi_sunxi.c
> > index 5f72e809952b..f6650652b42a 100644
> > --- a/arch/arm/mach-sunxi/spl_spi_sunxi.c
> > +++ b/arch/arm/mach-sunxi/spl_spi_sunxi.c
> > @@ -141,7 +141,7 @@ static bool is_sun6i_gen_spi(void)
> > return IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I) ||
> > IS_ENABLED(CONFIG_SUN50I_GEN_H6) ||
> > IS_ENABLED(CONFIG_SUNXI_GEN_NCAT2) ||
> > - IS_ENABLED(CONFIG_MACH_SUN8I_V3S);
> > + IS_ENABLED(CONFIG_MACH_SUN8I_V3_V3S);
> > }
> >
> > static uintptr_t spi0_base_address(void)
> > diff --git a/board/sunxi/board.c b/board/sunxi/board.c
> > index 2929bc17f084..6520636ffab5 100644
> > --- a/board/sunxi/board.c
> > +++ b/board/sunxi/board.c
> > @@ -68,7 +68,7 @@ void i2c_init_board(void)
> > sunxi_gpio_set_cfgpin(SUNXI_GPH(14), SUN6I_GPH_TWI0);
> > sunxi_gpio_set_cfgpin(SUNXI_GPH(15), SUN6I_GPH_TWI0);
> > clock_twi_onoff(0, 1);
> > -#elif defined(CONFIG_MACH_SUN8I_V3S)
> > +#elif defined(CONFIG_MACH_SUN8I_V3_V3S)
> > sunxi_gpio_set_cfgpin(SUNXI_GPB(6), SUN8I_V3S_GPB_TWI0);
> > sunxi_gpio_set_cfgpin(SUNXI_GPB(7), SUN8I_V3S_GPB_TWI0);
> > clock_twi_onoff(0, 1);
> > diff --git a/configs/pinecube_defconfig b/configs/pinecube_defconfig
> > index 7567a6aa7394..088dd6f8630a 100644
> > --- a/configs/pinecube_defconfig
> > +++ b/configs/pinecube_defconfig
> > @@ -2,8 +2,7 @@ CONFIG_ARM=y
> > CONFIG_ARCH_SUNXI=y
> > CONFIG_DEFAULT_DEVICE_TREE="sun8i-s3-pinecube"
> > CONFIG_SPL=y
> > -CONFIG_MACH_SUN8I_V3S=y
> > -CONFIG_SUNXI_DRAM_DDR3_1333=y
> > +CONFIG_MACH_SUN8I_V3=y
> > CONFIG_DRAM_CLK=504
> > CONFIG_DRAM_ODT_EN=y
> > CONFIG_I2C0_ENABLE=y
> > diff --git a/drivers/clk/sunxi/Kconfig b/drivers/clk/sunxi/Kconfig
> > index 1c1cc82719cd..207d3bed7922 100644
> > --- a/drivers/clk/sunxi/Kconfig
> > +++ b/drivers/clk/sunxi/Kconfig
> > @@ -68,7 +68,7 @@ config CLK_SUN8I_R40
> >
> > config CLK_SUN8I_V3S
> > bool "Clock driver for Allwinner V3S"
> > - default MACH_SUN8I_V3S
> > + default MACH_SUN8I_V3_V3S
> > help
> > This enables common clock driver support for platforms based
> > on Allwinner V3S SoC.
> > diff --git a/drivers/phy/allwinner/Kconfig b/drivers/phy/allwinner/Kconfig
> > index bb0bd8d5f812..335eff0a8bac 100644
> > --- a/drivers/phy/allwinner/Kconfig
> > +++ b/drivers/phy/allwinner/Kconfig
> > @@ -5,7 +5,7 @@ config PHY_SUN4I_USB
> > bool "Allwinner Sun4I USB PHY driver"
> > depends on ARCH_SUNXI
> > depends on !MACH_SUN9I
> > - default n if MACH_SUN8I_V3S
> > + default n if MACH_SUN8I_V3_V3S
> > default y
> > select DM_REGULATOR
> > select PHY
> > diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
> > index 543149922998..59039917158e 100644
> > --- a/drivers/pinctrl/sunxi/Kconfig
> > +++ b/drivers/pinctrl/sunxi/Kconfig
> > @@ -76,7 +76,7 @@ config PINCTRL_SUN8I_H3_R
> >
> > config PINCTRL_SUN8I_V3S
> > bool "Support for the Allwinner V3s PIO"
> > - default MACH_SUN8I_V3S
> > + default MACH_SUN8I_V3_V3S
> > select PINCTRL_SUNXI
> >
> > config PINCTRL_SUN9I_A80
> > diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
> > index eed65058e667..cdb3d712389c 100644
> > --- a/drivers/power/Kconfig
> > +++ b/drivers/power/Kconfig
> > @@ -75,7 +75,7 @@ config AXP152_POWER
> >
> > config AXP209_POWER
> > bool "axp209 pmic support"
> > - depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I_V3S
> > + depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I_V3
> > select AXP_PMIC_BUS
> > select CMD_POWEROFF
> > ---help---
>
--
Paul Kocialkowski,
Independent contractor - sys-base - https://www.sys-base.io/
Free software developer - https://www.paulk.fr/
Expert in multimedia, graphics and embedded hardware support with Linux.
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