diff mbox series

[v2,20/21] MIPS: generic: Add support for Mobileye EyeQ5

Message ID 20231123152639.561231-21-gregory.clement@bootlin.com
State New
Headers
Series Add support for the Mobileye EyeQ5 SoC |

Commit Message

Gregory CLEMENT Nov. 23, 2023, 3:26 p.m. UTC 
  Introduce support for the MIPS based Mobileye EyeQ5 SoCs.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
 arch/mips/configs/generic/board-eyeq5.config | 43 ++++++++++++++++++++
 arch/mips/generic/Kconfig                    | 15 +++++++
 arch/mips/generic/Platform                   |  2 +
 arch/mips/generic/board-epm5.its.S           | 24 +++++++++++
 4 files changed, 84 insertions(+)
 create mode 100644 arch/mips/configs/generic/board-eyeq5.config
 create mode 100644 arch/mips/generic/board-epm5.its.S

Comments

Jiaxun Yang Nov. 23, 2023, 5:46 p.m. UTC | #1 
在2023年11月23日十一月 下午3:26，Gregory CLEMENT写道：
> Introduce support for the MIPS based Mobileye EyeQ5 SoCs.
>
> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
> ---
[...]
> diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
> index 7dc5b3821cc6e..04e1fc6f789b5 100644
> --- a/arch/mips/generic/Kconfig
> +++ b/arch/mips/generic/Kconfig
> @@ -48,6 +48,13 @@ config SOC_VCOREIII
>  config MSCC_OCELOT
>  	bool
> 
> +config SOC_EYEQ5
> +	select ARM_AMBA
> +	select WEAK_ORDERING
> +	select WEAK_REORDERING_BEYOND_LLSC
> +	select PHYSICAL_START_BOOL
> +	bool

^ I believe WEAK_ORDERING is already selected by MIPS_CPS,
and WEAK_REORDERING_BEYOND_LLSC should be selected by MIPS_CPS as well.
 
Thanks
Gregory CLEMENT Dec. 1, 2023, 10:34 a.m. UTC | #2 
"Jiaxun Yang" <jiaxun.yang@flygoat.com> writes:

> 在2023年11月23日十一月 下午3:26，Gregory CLEMENT写道：
>> Introduce support for the MIPS based Mobileye EyeQ5 SoCs.
>>
>> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
>> ---
> [...]
>> diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
>> index 7dc5b3821cc6e..04e1fc6f789b5 100644
>> --- a/arch/mips/generic/Kconfig
>> +++ b/arch/mips/generic/Kconfig
>> @@ -48,6 +48,13 @@ config SOC_VCOREIII
>>  config MSCC_OCELOT
>>  	bool
>> 
>> +config SOC_EYEQ5
>> +	select ARM_AMBA
>> +	select WEAK_ORDERING
>> +	select WEAK_REORDERING_BEYOND_LLSC
>> +	select PHYSICAL_START_BOOL
>> +	bool
>
> ^ I believe WEAK_ORDERING is already selected by MIPS_CPS,

But MIPS_CPS can be disabled: it is not selected by
MIPS_GENERIC_KERNEL.

> and WEAK_REORDERING_BEYOND_LLSC should be selected by MIPS_CPS as well.

WEAK_REORDERING_BEYOND_LLSC is only selected by CPU_LOONGSON64 for
now not by MIPS_CPS

Thanks,

Gregory
>  
> Thanks
> -- 
> - Jiaxun
Jiaxun Yang Dec. 1, 2023, 10:49 a.m. UTC | #3 
在2023年12月1日十二月 上午10:34，Gregory CLEMENT写道：
> "Jiaxun Yang" <jiaxun.yang@flygoat.com> writes:
>
>> 在2023年11月23日十一月 下午3:26，Gregory CLEMENT写道：
>>> Introduce support for the MIPS based Mobileye EyeQ5 SoCs.
>>>
>>> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
>>> ---
>> [...]
>>> diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
>>> index 7dc5b3821cc6e..04e1fc6f789b5 100644
>>> --- a/arch/mips/generic/Kconfig
>>> +++ b/arch/mips/generic/Kconfig
>>> @@ -48,6 +48,13 @@ config SOC_VCOREIII
>>>  config MSCC_OCELOT
>>>  	bool
>>> 
>>> +config SOC_EYEQ5
>>> +	select ARM_AMBA
>>> +	select WEAK_ORDERING
>>> +	select WEAK_REORDERING_BEYOND_LLSC
>>> +	select PHYSICAL_START_BOOL
>>> +	bool
>>
>> ^ I believe WEAK_ORDERING is already selected by MIPS_CPS,
>
> But MIPS_CPS can be disabled: it is not selected by
> MIPS_GENERIC_KERNEL.

IMO if MIPS_CPS is not select then there is no SMP support on this platform.
WEAK_ORDERING only make sense for SMP system.

>
>> and WEAK_REORDERING_BEYOND_LLSC should be selected by MIPS_CPS as well.
>
> WEAK_REORDERING_BEYOND_LLSC is only selected by CPU_LOONGSON64 for
> now not by MIPS_CPS

I believe this applies to all SMP cores from MTI, I'll check with hardware
folks.

Thanks
- Jiaxun

>
> Thanks,
>
> Gregory
>>  
>> Thanks
>> -- 
>> - Jiaxun
>
> -- 
> Gregory Clement, Bootlin
> Embedded Linux and Kernel engineering
> http://bootlin.com
diff mbox series

Patch

diff --git a/arch/mips/configs/generic/board-eyeq5.config b/arch/mips/configs/generic/board-eyeq5.config
new file mode 100644
index 0000000000000..d5109fda6e821
--- /dev/null
+++ b/arch/mips/configs/generic/board-eyeq5.config
@@ -0,0 +1,43 @@ 
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_TASKSTATS=y
+CONFIG_FIT_IMAGE_FDT_EPM5=y
+CONFIG_BOARD_EYEQ5=y
+CONFIG_USE_XKPHYS=y
+CONFIG_PHYSICAL_START=0xa800000808000000
+CONFIG_ZBOOT_LOAD_ADDRESS=0xA800000080480000
+CONFIG_CPU_HAS_MSA=y
+CONFIG_NET_KEY=y
+CONFIG_CAN=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_DEBUG=y
+CONFIG_PCI_ENDPOINT=y
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_RAM=y
+CONFIG_MTD_ROM=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_MTD_BLOCK2MTD=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BLOCK=y
+CONFIG_NETDEVICES=y
+CONFIG_MACVLAN=y
+CONFIG_IPVLAN=y
+CONFIG_MACB=y
+CONFIG_MARVELL_PHY=y
+CONFIG_MICREL_PHY=y
+CONFIG_CAN_M_CAN=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_PINCTRL=y
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_CADENCE=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_FANOTIFY=y
+CONFIG_ROMFS_FS=y
+CONFIG_ROMFS_BACKED_BY_BOTH=y
+CONFIG_PAGE_SIZE_16KB=y
\ No newline at end of file
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index 7dc5b3821cc6e..04e1fc6f789b5 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -48,6 +48,13 @@  config SOC_VCOREIII
 config MSCC_OCELOT
 	bool
 
+config SOC_EYEQ5
+	select ARM_AMBA
+	select WEAK_ORDERING
+	select WEAK_REORDERING_BEYOND_LLSC
+	select PHYSICAL_START_BOOL
+	bool
+
 comment "FIT/UHI Boards"
 
 config FIT_IMAGE_FDT_BOSTON
@@ -124,4 +131,12 @@  config VIRT_BOARD_RANCHU
 	  Android emulator. Android emulator is based on Qemu, and contains
 	  the support for the same set of virtual devices.
 
+config FIT_IMAGE_FDT_EPM5
+	bool "Include FDT for Mobileye EyeQ5 development platforms"
+	select SOC_EYEQ5
+	default n
+	help
+	  Enable this to include the FDT for the EyeQ5 development platforms
+	  from Mobileye in the FIT kernel image.
+	  This requires u-boot on the platform.
 endif
diff --git a/arch/mips/generic/Platform b/arch/mips/generic/Platform
index 0c03623f38970..45db9824a11d6 100644
--- a/arch/mips/generic/Platform
+++ b/arch/mips/generic/Platform
@@ -24,3 +24,5 @@  its-$(CONFIG_FIT_IMAGE_FDT_JAGUAR2)	+= board-jaguar2.its.S
 its-$(CONFIG_FIT_IMAGE_FDT_SERVAL)	+= board-serval.its.S
 its-$(CONFIG_FIT_IMAGE_FDT_XILFPGA)	+= board-xilfpga.its.S
 its-$(CONFIG_FIT_IMAGE_FDT_MARDUK)	+= board-marduk.its.S
+its-$(CONFIG_FIT_IMAGE_FDT_EPM5)	+= board-epm5.its.S
+
diff --git a/arch/mips/generic/board-epm5.its.S b/arch/mips/generic/board-epm5.its.S
new file mode 100644
index 0000000000000..08e8c4f183d63
--- /dev/null
+++ b/arch/mips/generic/board-epm5.its.S
@@ -0,0 +1,24 @@ 
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/ {
+	images {
+		fdt-mobileye-epm5 {
+			description = "Mobileeye MP5 Device Tree";
+			data = /incbin/("boot/dts/mobileye/eyeq5-epm5.dtb");
+			type = "flat_dt";
+			arch = "mips";
+			compression = "none";
+			hash {
+				algo = "sha1";
+			};
+		};
+	};
+
+    configurations {
+		default = "conf-1";
+		conf-1 {
+			description = "Mobileye EPM5 Linux kernel";
+			kernel = "kernel";
+			fdt = "fdt-mobileye-epm5";
+		};
+	};
+};