diff mbox series

[v3,6/6] board: presidio-asic: Add basic G3 engr. development board support

Message ID 1580362168-11286-7-git-send-email-alex.nemirovsky@cortina-access.com
State New
Headers show
Series Add Cortina Access basic DM drivers | expand

Commit Message

Alex Nemirovsky Jan. 30, 2020, 5:29 a.m. UTC
Add basic Presidio G3 engineering board support

Signed-off-by: Alex Nemirovsky <alex.nemirovsky at cortina-access.com>

---

Changes in v3:
- fixed dts closing bracket indentation
- presidio.h: remove deadcode from presidio.h
- presidio.h: remove CA_REG_READ/CA_REG_WRITE wrapper macros
- presidio.h: remove CA77xx define replace use CA common Kconfig
  SoC selection instead
- select SOC_CA7774 via board's Kconfig
- select BIT64 via board's Kconfig instead of presidio.h

Changes in v2: None

 arch/arm/Kconfig                             |   5 +
 arch/arm/dts/Makefile                        |   2 +
 arch/arm/dts/ca-presidio-engboard.dts        |  69 ++++++++++++++
 arch/arm/mach-cortina/Makefile               |   5 +
 board/cortina/presidio-asic/Kconfig          |  18 ++++
 board/cortina/presidio-asic/MAINTAINERS      |   6 ++
 board/cortina/presidio-asic/Makefile         |   8 ++
 board/cortina/presidio-asic/lowlevel_init.S  |  87 +++++++++++++++++
 board/cortina/presidio-asic/presidio.c       | 134 +++++++++++++++++++++++++++
 configs/cortina_presidio-asic-base_defconfig |  45 +++++++++
 include/configs/presidio_asic.h              | 114 +++++++++++++++++++++++
 11 files changed, 493 insertions(+)
 create mode 100644 arch/arm/dts/ca-presidio-engboard.dts
 create mode 100644 arch/arm/mach-cortina/Makefile
 create mode 100644 board/cortina/presidio-asic/Kconfig
 create mode 100644 board/cortina/presidio-asic/MAINTAINERS
 create mode 100644 board/cortina/presidio-asic/Makefile
 create mode 100644 board/cortina/presidio-asic/lowlevel_init.S
 create mode 100644 board/cortina/presidio-asic/presidio.c
 create mode 100644 configs/cortina_presidio-asic-base_defconfig
 create mode 100644 include/configs/presidio_asic.h

Comments

Tom Rini Jan. 30, 2020, 3:56 p.m. UTC | #1
On Thu, Jan 30, 2020 at 05:29:56AM +0000, Alex Nemirovsky wrote:

> Add basic Presidio G3 engineering board support
> 
> Signed-off-by: Alex Nemirovsky <alex.nemirovsky at cortina-access.com>
[snip]
>  create mode 100644 arch/arm/dts/ca-presidio-engboard.dts

What is the status of upstreaming this file to Linux?

[snip]
> diff --git a/configs/cortina_presidio-asic-base_defconfig b/configs/cortina_presidio-asic-base_defconfig
> new file mode 100644
> index 0000000..45b911c
> --- /dev/null
> +++ b/configs/cortina_presidio-asic-base_defconfig
> @@ -0,0 +1,45 @@
> +# Cortina-Access Ltd. Presidio ASIC Board

This file is re-generated frequently.  Please use 'savedefconfig' on
this next and use that version.

> diff --git a/include/configs/presidio_asic.h b/include/configs/presidio_asic.h
> new file mode 100644
> index 0000000..22679ca
> --- /dev/null
> +++ b/include/configs/presidio_asic.h
> @@ -0,0 +1,114 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Copyright (C) 2020 Cortina Access Inc.
> + *
> + * Configuration for Cortina-Access Presidio board.
> + */
> +
> +#ifndef __PRESIDIO_ASIC_H
> +#define __PRESIDIO_ASIC_H
> +
> +#define CONFIG_REMAKE_ELF
> +
> +#define CONFIG_GICV2
> +
> +#define CONFIG_SUPPORT_RAW_INITRD
> +#define CONFIG_ARMV8_MULTIENTRY
> +
> +/* SMP jump address in DRAM */
> +#define CPU_RELEASE_ADDR		0x0740fff8

non-CONFIG symbols need to be in other header files, not this one.

> +
> +#define CONFIG_SYS_INIT_SP_ADDR		0x00100000
> +#define CONFIG_SYS_BOOTM_LEN		0x00c00000
> +
> +/* Generic Timer Definitions */
> +#define COUNTER_FREQUENCY		25000000
> +#define CONFIG_SYS_TIMER_RATE COUNTER_FREQUENCY
> +#define CONFIG_SYS_TIMER_COUNTER 0xf4321008
> +
> +/* Generic Interrupt Controller Definitions */
> +#define GICD_BASE			0xf7011000
> +#define GICC_BASE			0xf7012000
> +
> +#define CONFIG_SYS_MEMTEST_SCRATCH	0x00100000
> +#define CONFIG_SYS_MEMTEST_START	0x05000000
> +#define CONFIG_SYS_MEMTEST_END		0x0D000000
> +
> +/* Size of malloc() pool */
> +#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (8 << 20))
> +
> +#define CONFIG_SYS_TIMER_BASE		0xf4321000
> +
> +/* Use external clock source */
> +#define PRESIDIO_APB_CLK		125000000
> +#define CORTINA_PER_IO_FREQ		PRESIDIO_APB_CLK
> +
> +/* Cortina Serial Configuration */
> +#define CORTINA_UART_CLOCK		(PRESIDIO_APB_CLK)
> +#define CORTINA_SERIAL_PORTS		{(void *)CONFIG_SYS_SERIAL0, \
> +					 (void *)CONFIG_SYS_SERIAL1}
> +
> +#define CONFIG_BAUDRATE			115200
> +#define CONFIG_SYS_SERIAL0		PER_UART0_CFG
> +#define CONFIG_SYS_SERIAL1		PER_UART1_CFG
> +
> +/* BLOCK Reset Definitions */
> +#define RESET_OTPROM			BIT(29)
> +#define RESET_SD			BIT(28)
> +#define RESET_EAXI			BIT(27)
> +#define RESET_FBM			BIT(26)
> +#define RESET_LDMA			BIT(25)
> +#define RESET_RCRYPTO			BIT(24)
> +#define RESET_SADB			BIT(22)
> +#define RESET_RCPU1			BIT(21)
> +#define RESET_RCPU0			BIT(20)
> +#define RESET_PE1			BIT(19)
> +#define RESET_PE0			BIT(18)
> +#define RESET_RTC			BIT(17)
> +#define RESET_DMA			BIT(16)
> +#define RESET_PER			BIT(15)
> +#define RESET_FLASH			BIT(14)
> +#define RESET_GIC400			BIT(10)
> +#define RESET_SATA			BIT(9)
> +#define RESET_PCIE2			BIT(8)
> +#define RESET_PCIE1			BIT(7)
> +#define RESET_PCIE0			BIT(6)
> +#define RESET_TQM			BIT(5)
> +#define RESET_SDRAM			BIT(4)
> +#define RESET_L3FE			BIT(3)
> +#define RESET_L2TM			BIT(2)
> +#define RESET_L2FE			BIT(1)
> +#define RESET_NI			BIT(0)
> +
> +/* BOOTP options */
> +#define CONFIG_BOOTP_BOOTFILESIZE
> +
> +/* Miscellaneous configurable options */
> +#define DDR_BASE			0x00000000
> +#define CONFIG_SYS_LOAD_ADDR		(DDR_BASE + 0x10000000)
> +#define CONFIG_LAST_STAGE_INIT
> +
> +/* Physical Memory Map */
> +
> +/* SDRAM Bank #1 */
> +#define PHYS_SDRAM_1			DDR_BASE
> +#define PHYS_SDRAM_1_SIZE		0x80000000 /* 2GB */
> +#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
> +
> +/* Initial environment variables */
> +
> +#define CONFIG_EXTRA_ENV_SETTINGS	"silent=y\0"
> +#define CONFIG_BOOTARGS			"earlycon=serial,0xf4329148 console=ttyS0,115200 root=/dev/ram0"

Note that BOOTARGS belongs in the defconfig file.

Thanks!
Alex Nemirovsky Jan. 30, 2020, 9:28 p.m. UTC | #2
> On Jan 30, 2020, at 7:56 AM, Tom Rini <trini at konsulko.com> wrote:
> 
> On Thu, Jan 30, 2020 at 05:29:56AM +0000, Alex Nemirovsky wrote:
> 
>> Add basic Presidio G3 engineering board support
>> 
>> Signed-off-by: Alex Nemirovsky <alex.nemirovsky at cortina-access.com>
> [snip]
>> create mode 100644 arch/arm/dts/ca-presidio-engboard.dts
> 
> What is the status of upstreaming this file to Linux?

Tom,
May I assume you are asking about DT board files in Linux because
your workflow typically copies the DT files from Linux upstream for reuse by u-boot
without modification? Essential making it the defacto source for all the DT board files in u-boot?


The rest of your feedback items should be address in rev 4 of the patch series that 
I just recently submitted.

> 
> [snip]
>> diff --git a/configs/cortina_presidio-asic-base_defconfig b/configs/cortina_presidio-asic-base_defconfig
>> new file mode 100644
>> index 0000000..45b911c
>> --- /dev/null
>> +++ b/configs/cortina_presidio-asic-base_defconfig
>> @@ -0,0 +1,45 @@
>> +# Cortina-Access Ltd. Presidio ASIC Board
> 
> This file is re-generated frequently.  Please use 'savedefconfig' on
> this next and use that version.
> 
>> diff --git a/include/configs/presidio_asic.h b/include/configs/presidio_asic.h
>> new file mode 100644
>> index 0000000..22679ca
>> --- /dev/null
>> +++ b/include/configs/presidio_asic.h
>> @@ -0,0 +1,114 @@
>> +/* SPDX-License-Identifier: GPL-2.0+ */
>> +/*
>> + * Copyright (C) 2020 Cortina Access Inc.
>> + *
>> + * Configuration for Cortina-Access Presidio board.
>> + */
>> +
>> +#ifndef __PRESIDIO_ASIC_H
>> +#define __PRESIDIO_ASIC_H
>> +
>> +#define CONFIG_REMAKE_ELF
>> +
>> +#define CONFIG_GICV2
>> +
>> +#define CONFIG_SUPPORT_RAW_INITRD
>> +#define CONFIG_ARMV8_MULTIENTRY
>> +
>> +/* SMP jump address in DRAM */
>> +#define CPU_RELEASE_ADDR		0x0740fff8
> 
> non-CONFIG symbols need to be in other header files, not this one.
> 
>> +
>> +#define CONFIG_SYS_INIT_SP_ADDR		0x00100000
>> +#define CONFIG_SYS_BOOTM_LEN		0x00c00000
>> +
>> +/* Generic Timer Definitions */
>> +#define COUNTER_FREQUENCY		25000000
>> +#define CONFIG_SYS_TIMER_RATE COUNTER_FREQUENCY
>> +#define CONFIG_SYS_TIMER_COUNTER 0xf4321008
>> +
>> +/* Generic Interrupt Controller Definitions */
>> +#define GICD_BASE			0xf7011000
>> +#define GICC_BASE			0xf7012000
>> +
>> +#define CONFIG_SYS_MEMTEST_SCRATCH	0x00100000
>> +#define CONFIG_SYS_MEMTEST_START	0x05000000
>> +#define CONFIG_SYS_MEMTEST_END		0x0D000000
>> +
>> +/* Size of malloc() pool */
>> +#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (8 << 20))
>> +
>> +#define CONFIG_SYS_TIMER_BASE		0xf4321000
>> +
>> +/* Use external clock source */
>> +#define PRESIDIO_APB_CLK		125000000
>> +#define CORTINA_PER_IO_FREQ		PRESIDIO_APB_CLK
>> +
>> +/* Cortina Serial Configuration */
>> +#define CORTINA_UART_CLOCK		(PRESIDIO_APB_CLK)
>> +#define CORTINA_SERIAL_PORTS		{(void *)CONFIG_SYS_SERIAL0, \
>> +					 (void *)CONFIG_SYS_SERIAL1}
>> +
>> +#define CONFIG_BAUDRATE			115200
>> +#define CONFIG_SYS_SERIAL0		PER_UART0_CFG
>> +#define CONFIG_SYS_SERIAL1		PER_UART1_CFG
>> +
>> +/* BLOCK Reset Definitions */
>> +#define RESET_OTPROM			BIT(29)
>> +#define RESET_SD			BIT(28)
>> +#define RESET_EAXI			BIT(27)
>> +#define RESET_FBM			BIT(26)
>> +#define RESET_LDMA			BIT(25)
>> +#define RESET_RCRYPTO			BIT(24)
>> +#define RESET_SADB			BIT(22)
>> +#define RESET_RCPU1			BIT(21)
>> +#define RESET_RCPU0			BIT(20)
>> +#define RESET_PE1			BIT(19)
>> +#define RESET_PE0			BIT(18)
>> +#define RESET_RTC			BIT(17)
>> +#define RESET_DMA			BIT(16)
>> +#define RESET_PER			BIT(15)
>> +#define RESET_FLASH			BIT(14)
>> +#define RESET_GIC400			BIT(10)
>> +#define RESET_SATA			BIT(9)
>> +#define RESET_PCIE2			BIT(8)
>> +#define RESET_PCIE1			BIT(7)
>> +#define RESET_PCIE0			BIT(6)
>> +#define RESET_TQM			BIT(5)
>> +#define RESET_SDRAM			BIT(4)
>> +#define RESET_L3FE			BIT(3)
>> +#define RESET_L2TM			BIT(2)
>> +#define RESET_L2FE			BIT(1)
>> +#define RESET_NI			BIT(0)
>> +
>> +/* BOOTP options */
>> +#define CONFIG_BOOTP_BOOTFILESIZE
>> +
>> +/* Miscellaneous configurable options */
>> +#define DDR_BASE			0x00000000
>> +#define CONFIG_SYS_LOAD_ADDR		(DDR_BASE + 0x10000000)
>> +#define CONFIG_LAST_STAGE_INIT
>> +
>> +/* Physical Memory Map */
>> +
>> +/* SDRAM Bank #1 */
>> +#define PHYS_SDRAM_1			DDR_BASE
>> +#define PHYS_SDRAM_1_SIZE		0x80000000 /* 2GB */
>> +#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
>> +
>> +/* Initial environment variables */
>> +
>> +#define CONFIG_EXTRA_ENV_SETTINGS	"silent=y\0"
>> +#define CONFIG_BOOTARGS			"earlycon=serial,0xf4329148 console=ttyS0,115200 root=/dev/ram0"
> 
> Note that BOOTARGS belongs in the defconfig file.
> 
> Thanks!
> 
> -- 
> Tom
Tom Rini Jan. 30, 2020, 9:30 p.m. UTC | #3
On Thu, Jan 30, 2020 at 09:28:51PM +0000, Alex Nemirovsky wrote:
> 
> 
> > On Jan 30, 2020, at 7:56 AM, Tom Rini <trini at konsulko.com> wrote:
> > 
> > On Thu, Jan 30, 2020 at 05:29:56AM +0000, Alex Nemirovsky wrote:
> > 
> >> Add basic Presidio G3 engineering board support
> >> 
> >> Signed-off-by: Alex Nemirovsky <alex.nemirovsky at cortina-access.com>
> > [snip]
> >> create mode 100644 arch/arm/dts/ca-presidio-engboard.dts
> > 
> > What is the status of upstreaming this file to Linux?
> 
> Tom,
> May I assume you are asking about DT board files in Linux because
> your workflow typically copies the DT files from Linux upstream for reuse by u-boot
> without modification? Essential making it the defacto source for all the DT board files in u-boot?

Yes.  We do have some platforms that do not have a Linux upstream to
them and need to be more careful in their reviews.  Thanks!
Alex Nemirovsky Jan. 30, 2020, 9:40 p.m. UTC | #4
Tom,

For now, please consider our boards on the small list of boards for which
DT files from Linux are not available for reuse by u-boot.  
Although the attached DT file pass patman parsing without warnings, feel free to give them more scrutiny as there is 
no immediate effort to upstream Linux support.

BR
-AN

> On Jan 30, 2020, at 1:30 PM, Tom Rini <trini at konsulko.com> wrote:
> 
> On Thu, Jan 30, 2020 at 09:28:51PM +0000, Alex Nemirovsky wrote:
>> 
>> 
>>> On Jan 30, 2020, at 7:56 AM, Tom Rini <trini at konsulko.com> wrote:
>>> 
>>> On Thu, Jan 30, 2020 at 05:29:56AM +0000, Alex Nemirovsky wrote:
>>> 
>>>> Add basic Presidio G3 engineering board support
>>>> 
>>>> Signed-off-by: Alex Nemirovsky <alex.nemirovsky at cortina-access.com>
>>> [snip]
>>>> create mode 100644 arch/arm/dts/ca-presidio-engboard.dts
>>> 
>>> What is the status of upstreaming this file to Linux?
>> 
>> Tom,
>> May I assume you are asking about DT board files in Linux because
>> your workflow typically copies the DT files from Linux upstream for reuse by u-boot
>> without modification? Essential making it the defacto source for all the DT board files in u-boot?
> 
> Yes.  We do have some platforms that do not have a Linux upstream to
> them and need to be more careful in their reviews.  Thanks!
> 
> -- 
> Tom
diff mbox series

Patch

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 36c9c2f..6d95cde 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1638,6 +1638,10 @@  config TARGET_DURIAN
 	  Support for durian platform.
 	  It has 2GB Sdram, uart and pcie.
 
+config TARGET_PRESIDIO_ASIC
+	bool "Support Cortina Presidio ASIC Platform"
+	select ARM64
+
 endchoice
 
 config ARCH_SUPPORT_TFABOOT
@@ -1782,6 +1786,7 @@  source "board/Marvell/gplugd/Kconfig"
 source "board/armadeus/apf27/Kconfig"
 source "board/armltd/vexpress/Kconfig"
 source "board/armltd/vexpress64/Kconfig"
+source "board/cortina/presidio-asic/Kconfig"
 source "board/broadcom/bcm23550_w1d/Kconfig"
 source "board/broadcom/bcm28155_ap/Kconfig"
 source "board/broadcom/bcm963158/Kconfig"
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 0127a91..81db1e6 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -849,6 +849,8 @@  dtb-$(CONFIG_TARGET_VEXPRESS_CA15_TC2) += vexpress-v2p-ca15_a7.dtb
 
 dtb-$(CONFIG_TARGET_DURIAN) += phytium-durian.dtb
 
+dtb-$(CONFIG_TARGET_PRESIDIO_ASIC) += ca-presidio-engboard.dtb
+
 targets += $(dtb-y)
 
 # Add any required device tree compiler flags here
diff --git a/arch/arm/dts/ca-presidio-engboard.dts b/arch/arm/dts/ca-presidio-engboard.dts
new file mode 100644
index 0000000..c03dacc
--- /dev/null
+++ b/arch/arm/dts/ca-presidio-engboard.dts
@@ -0,0 +1,69 @@ 
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020, Cortina Access Inc.
+ */
+
+/dts-v1/;
+
+/ {
+   #address-cells = <2>;
+   #size-cells = <1>;
+
+	mmc0: mmc at f4400000 {
+		compatible = "snps,dw-cortina";
+		reg = <0x0 0xf4400000 0x1000>;
+		bus-width = <4>;
+		io_ds = <0x77>;
+		fifo-mode;
+		sd_dll_ctrl = <0xf43200e8>;
+		io_drv_ctrl = <0xf432004c>;
+	};
+
+	gpio0: gpio-controller at 0xf4329280  {
+		compatible = "cortina,ca-gpio";
+		reg = <0x0 0xf4329280 0x24>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		status = "okay";
+	};
+	gpio1: gpio-controller at 0xf43292a4  {
+		compatible = "cortina,ca-gpio";
+		reg = <0x0 0xf43292a4 0x24>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		status = "disabled";
+	};
+
+	watchdog: watchdog at 0xf432901c {
+		compatible = "cortina,ca-wdt";
+		reg = <0x0 0xf432901c 0x34>,
+		      <0x0 0xf4320020 0x04>;
+		status = "okay";
+	};
+
+	uart0: serial at 0xf4329148  {
+		u-boot,dm-pre-reloc;
+		compatible = "cortina,ca-uart";
+		reg = <0x0 0xf4329148 0x30>;
+		status = "okay";
+	};
+
+	i2c: i2c at f4329120 {
+		compatible = "cortina,ca-i2c";
+		reg = <0x0 0xf4329120 0x28>;
+		clock-frequency = <400000>;
+	};
+
+	sflash: sflash-controller at f4324000 {
+		#address-cells = <2>;
+		#size-cells = <1>;
+		compatible = "cortina,ca-sflash";
+		reg = <0x0 0xf4324000 0x50>;
+		reg-names = "sflash-regs";
+		flash at 0 {
+			compatible = "jedec,spi-nor";
+			spi-rx-bus-width = <1>;
+			spi-max-frequency = <108000000>;
+		};
+	};
+};
diff --git a/arch/arm/mach-cortina/Makefile b/arch/arm/mach-cortina/Makefile
new file mode 100644
index 0000000..ffb8692
--- /dev/null
+++ b/arch/arm/mach-cortina/Makefile
@@ -0,0 +1,5 @@ 
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2020 Cortina Access Inc.
+#
+obj-y += lowlevel_init.o
diff --git a/board/cortina/presidio-asic/Kconfig b/board/cortina/presidio-asic/Kconfig
new file mode 100644
index 0000000..8e6f6cf
--- /dev/null
+++ b/board/cortina/presidio-asic/Kconfig
@@ -0,0 +1,18 @@ 
+if TARGET_PRESIDIO_ASIC
+config BIT64
+       bool
+       default y
+
+select SOC_CA7774
+
+config SYS_BOARD
+	default "presidio-asic"
+
+config SYS_VENDOR
+	default "cortina"
+
+config SYS_CONFIG_NAME
+	default "presidio_asic"
+
+source "board/cortina/common/Kconfig"
+endif
diff --git a/board/cortina/presidio-asic/MAINTAINERS b/board/cortina/presidio-asic/MAINTAINERS
new file mode 100644
index 0000000..9db17bd
--- /dev/null
+++ b/board/cortina/presidio-asic/MAINTAINERS
@@ -0,0 +1,6 @@ 
+Cortina Presidio ASIC G3 Engineering BOARD
+M:	Alex Nemirovsky <alex.nemirovsky at cortina-access.com>
+S:	Supported
+F:	board/cortina/presidio-asic/
+F:	include/configs/presidio_asic.h
+F:	configs/cortina_presidio-asic*defconfig
diff --git a/board/cortina/presidio-asic/Makefile b/board/cortina/presidio-asic/Makefile
new file mode 100644
index 0000000..d167a15
--- /dev/null
+++ b/board/cortina/presidio-asic/Makefile
@@ -0,0 +1,8 @@ 
+# SPDX-License-Identifier:	GPL-2.0+
+#
+# (C) Copyright 2020 Cortina-Access.Inc.
+#
+#
+
+obj-y	:= presidio.o
+obj-y	+= lowlevel_init.o
diff --git a/board/cortina/presidio-asic/lowlevel_init.S b/board/cortina/presidio-asic/lowlevel_init.S
new file mode 100644
index 0000000..4450a5d
--- /dev/null
+++ b/board/cortina/presidio-asic/lowlevel_init.S
@@ -0,0 +1,87 @@ 
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2020 Cortina-Access
+ *
+ */
+
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <linux/linkage.h>
+#include <asm/macro.h>
+#include <asm/armv8/mmu.h>
+
+	.globl lowlevel_init
+lowlevel_init:
+	mov	x29, lr			/* Save LR */
+
+#if defined(CONFIG_SOC_CA7774)
+	/* Enable SMPEN in CPUECTLR */
+	mrs     x0, s3_1_c15_c2_1
+	tst     x0, #0x40
+        b.ne    skip_smp_setup
+	orr     x0, x0, #0x40
+	msr     s3_1_c15_c2_1, x0
+skip_smp_setup:
+#endif
+
+#if defined(CONFIG_SOC_CA8277B)
+	/* Enable CPU Timer */
+	ldr x0, =CONFIG_SYS_TIMER_BASE
+	mov x1, #1
+	str w1, [x0]
+#endif
+
+#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3)
+	branch_if_slave x0, 1f
+#ifndef CONFIG_TARGET_VENUS
+	ldr	x0, =GICD_BASE
+	bl	gic_init_secure
+#endif
+1:
+#if defined(CONFIG_GICV3)
+	ldr	x0, =GICR_BASE
+	bl	gic_init_secure_percpu
+#elif defined(CONFIG_GICV2)
+	ldr	x0, =GICD_BASE
+	ldr	x1, =GICC_BASE
+	bl	gic_init_secure_percpu
+#endif
+#endif
+
+#ifdef CONFIG_ARMV8_MULTIENTRY
+	branch_if_master x0, x1, 2f
+
+	/*
+	 * Slave should wait for master clearing spin table.
+	 * This sync prevent salves observing incorrect
+	 * value of spin table and jumping to wrong place.
+	 */
+#if defined(CONFIG_GICV2) || defined(CONFIG_GICV3)
+#ifdef CONFIG_GICV2
+	ldr	x0, =GICC_BASE
+#endif
+	bl	gic_wait_for_interrupt
+#endif
+
+	/*
+	 * All slaves will enter EL2 and optionally EL1.
+	 */
+	adr	x4, lowlevel_in_el2
+	ldr	x5, =ES_TO_AARCH64
+	bl	armv8_switch_to_el2
+
+lowlevel_in_el2:
+#ifdef CONFIG_ARMV8_SWITCH_TO_EL1
+	adr	x4, lowlevel_in_el1
+	ldr	x5, =ES_TO_AARCH64
+	bl	armv8_switch_to_el1
+
+lowlevel_in_el1:
+#endif
+
+#endif /* CONFIG_ARMV8_MULTIENTRY */
+
+2:
+	mov	lr, x29			/* Restore LR */
+	ret
diff --git a/board/cortina/presidio-asic/presidio.c b/board/cortina/presidio-asic/presidio.c
new file mode 100644
index 0000000..b4fa01f
--- /dev/null
+++ b/board/cortina/presidio-asic/presidio.c
@@ -0,0 +1,134 @@ 
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2020 - Cortina Access Inc.
+ *
+ */
+#include <common.h>
+#include <malloc.h>
+#include <errno.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <linux/compiler.h>
+#include <configs/presidio_asic.h>
+#include <linux/psci.h>
+#include <asm/psci.h>
+#include <cpu_func.h>
+#include <asm/armv8/mmu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define CA_PERIPH_BASE                  0xE0000000UL
+#define CA_PERIPH_SIZE                  0x20000000UL
+#define CA_GLOBAL_BASE                  0xf4320000
+#define CA_GLOBAL_JTAG_ID               0xf4320000
+#define CA_GLOBAL_BLOCK_RESET           0xf4320004
+#define CA_GLOBAL_BLOCK_RESET_RESET_DMA BIT(16)
+#define CA_DMA_SEC_SSP_BAUDRATE_CTRL    0xf7001b94
+#define CA_DMA_SEC_SSP_ID               0xf7001b80
+
+int print_cpuinfo(void)
+{
+	printf("CPU:   Cortina Presidio G3\n");
+	return 0;
+}
+
+static struct mm_region presidio_mem_map[] = {
+	{
+	.virt = DDR_BASE,
+	.phys = DDR_BASE,
+	.size = PHYS_SDRAM_1_SIZE,
+	.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+		 PTE_BLOCK_OUTER_SHARE
+	},
+	{
+	.virt = CA_PERIPH_BASE,
+	.phys = CA_PERIPH_BASE,
+	.size = CA_PERIPH_SIZE,
+	.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+		 PTE_BLOCK_NON_SHARE
+	},
+	{
+	/* List terminator */
+	0,
+	}
+};
+
+struct mm_region *mem_map = presidio_mem_map;
+
+static noinline int invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1,
+				       u64 arg2)
+{
+	asm volatile("mov x0, %0\n"
+		    "mov x1, %1\n"
+		    "mov x2, %2\n"
+		    "mov x3, %3\n"
+		    "smc	#0\n"
+		    : "+r" (function_id)
+		    : "r" (arg0), "r" (arg1), "r" (arg2)
+		    );
+
+	return function_id;
+}
+
+int board_early_init_r(void)
+{
+	dcache_disable();
+	return 0;
+}
+
+int board_init(void)
+{
+	unsigned int reg_data, jtag_id;
+
+	/* Enable timer */
+	writel(1, CONFIG_SYS_TIMER_BASE);
+
+	/* Enable snoop in CCI400 slave port#4 */
+	writel(3, 0xF5595000);
+
+	jtag_id = readl(CA_GLOBAL_JTAG_ID);
+
+	/* If this is HGU variant then do not use
+	 * the Saturn daughter card ref. clk
+	 */
+	if (jtag_id == 0x1010D8F3) {
+		reg_data = readl(0xF3100064);
+		/* change multifunc. REF CLK pin to
+		 * a simple GPIO pin
+		 */
+		reg_data |= (1 << 1);
+		writel(reg_data, 0xf3100064);
+	}
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	unsigned int ddr_size;
+
+	ddr_size = readl(0x111100c);
+	gd->ram_size = ddr_size * 0x100000;
+	return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+	invoke_psci_fn_smc(PSCI_0_2_FN_SYSTEM_RESET, 0, 0, 0);
+}
+
+#ifdef CONFIG_LAST_STAGE_INIT
+int last_stage_init(void)
+{
+	u32 val;
+
+	val = readl(CA_GLOBAL_BLOCK_RESET);
+	val &= ~CA_GLOBAL_BLOCK_RESET_RESET_DMA;
+	writel(val, CA_GLOBAL_BLOCK_RESET);
+
+	/* reduce output pclk ~3.7Hz to save power consumption */
+	writel(0x000000FF, CA_DMA_SEC_SSP_BAUDRATE_CTRL);
+
+	return 0;
+}
+#endif
diff --git a/configs/cortina_presidio-asic-base_defconfig b/configs/cortina_presidio-asic-base_defconfig
new file mode 100644
index 0000000..45b911c
--- /dev/null
+++ b/configs/cortina_presidio-asic-base_defconfig
@@ -0,0 +1,45 @@ 
+# Cortina-Access Ltd. Presidio ASIC Board
+CONFIG_CORTINA_PLATFORM=y
+CONFIG_ARM=y
+CONFIG_SYS_ARCH_TIMER=n
+CONFIG_TARGET_PRESIDIO_ASIC=y
+CONFIG_SHOW_BOOT_PROGRESS=y
+CONFIG_BOARD_EARLY_INIT_R=y
+CONFIG_ENV_OFFSET=0x400000
+CONFIG_ENV_SIZE=0x20000
+CONFIG_SYS_TEXT_BASE=0x04000000
+CONFIG_BOOTDELAY=3
+CONFIG_SYS_PROMPT="G3#"
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_CONS_INDEX=0
+CONFIG_IDENT_STRING="Presidio-SoC"
+CONFIG_BOOTP_VCI_STRING="U-boot.armv8.presidio"
+CONFIG_OF_LIBFDT=y
+
+CONFIG_MENU=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIMER=y
+CONFIG_CMD_SMC=y
+
+CONFIG_DM=y
+CONFIG_CORTINA_UART=y
+CONFIG_REQUIRE_SERIAL_CONSOLE=y
+CONFIG_DM_SERIAL=y
+
+CONFIG_DM_GPIO=y
+CONFIG_CORTINA_GPIO=y
+
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_TIMEOUT_MSECS=60000
+CONFIG_WDT=y
+CONFIG_WDT_CORTINA=y
+CONFIG_CMD_WDT=y
+
+CONFIG_OF_CONTROL=y
+CONFIG_OF_LIVE=y
+CONFIG_OF_SEPARATE=y
+CONFIG_DEFAULT_DEVICE_TREE="ca-presidio-engboard"
+
+CONFIG_MMC=n
+CONFIG_NET=n
+CONFIG_NETDEVICES=n
diff --git a/include/configs/presidio_asic.h b/include/configs/presidio_asic.h
new file mode 100644
index 0000000..22679ca
--- /dev/null
+++ b/include/configs/presidio_asic.h
@@ -0,0 +1,114 @@ 
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2020 Cortina Access Inc.
+ *
+ * Configuration for Cortina-Access Presidio board.
+ */
+
+#ifndef __PRESIDIO_ASIC_H
+#define __PRESIDIO_ASIC_H
+
+#define CONFIG_REMAKE_ELF
+
+#define CONFIG_GICV2
+
+#define CONFIG_SUPPORT_RAW_INITRD
+#define CONFIG_ARMV8_MULTIENTRY
+
+/* SMP jump address in DRAM */
+#define CPU_RELEASE_ADDR		0x0740fff8
+
+#define CONFIG_SYS_INIT_SP_ADDR		0x00100000
+#define CONFIG_SYS_BOOTM_LEN		0x00c00000
+
+/* Generic Timer Definitions */
+#define COUNTER_FREQUENCY		25000000
+#define CONFIG_SYS_TIMER_RATE COUNTER_FREQUENCY
+#define CONFIG_SYS_TIMER_COUNTER 0xf4321008
+
+/* Generic Interrupt Controller Definitions */
+#define GICD_BASE			0xf7011000
+#define GICC_BASE			0xf7012000
+
+#define CONFIG_SYS_MEMTEST_SCRATCH	0x00100000
+#define CONFIG_SYS_MEMTEST_START	0x05000000
+#define CONFIG_SYS_MEMTEST_END		0x0D000000
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (8 << 20))
+
+#define CONFIG_SYS_TIMER_BASE		0xf4321000
+
+/* Use external clock source */
+#define PRESIDIO_APB_CLK		125000000
+#define CORTINA_PER_IO_FREQ		PRESIDIO_APB_CLK
+
+/* Cortina Serial Configuration */
+#define CORTINA_UART_CLOCK		(PRESIDIO_APB_CLK)
+#define CORTINA_SERIAL_PORTS		{(void *)CONFIG_SYS_SERIAL0, \
+					 (void *)CONFIG_SYS_SERIAL1}
+
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_SERIAL0		PER_UART0_CFG
+#define CONFIG_SYS_SERIAL1		PER_UART1_CFG
+
+/* BLOCK Reset Definitions */
+#define RESET_OTPROM			BIT(29)
+#define RESET_SD			BIT(28)
+#define RESET_EAXI			BIT(27)
+#define RESET_FBM			BIT(26)
+#define RESET_LDMA			BIT(25)
+#define RESET_RCRYPTO			BIT(24)
+#define RESET_SADB			BIT(22)
+#define RESET_RCPU1			BIT(21)
+#define RESET_RCPU0			BIT(20)
+#define RESET_PE1			BIT(19)
+#define RESET_PE0			BIT(18)
+#define RESET_RTC			BIT(17)
+#define RESET_DMA			BIT(16)
+#define RESET_PER			BIT(15)
+#define RESET_FLASH			BIT(14)
+#define RESET_GIC400			BIT(10)
+#define RESET_SATA			BIT(9)
+#define RESET_PCIE2			BIT(8)
+#define RESET_PCIE1			BIT(7)
+#define RESET_PCIE0			BIT(6)
+#define RESET_TQM			BIT(5)
+#define RESET_SDRAM			BIT(4)
+#define RESET_L3FE			BIT(3)
+#define RESET_L2TM			BIT(2)
+#define RESET_L2FE			BIT(1)
+#define RESET_NI			BIT(0)
+
+/* BOOTP options */
+#define CONFIG_BOOTP_BOOTFILESIZE
+
+/* Miscellaneous configurable options */
+#define DDR_BASE			0x00000000
+#define CONFIG_SYS_LOAD_ADDR		(DDR_BASE + 0x10000000)
+#define CONFIG_LAST_STAGE_INIT
+
+/* Physical Memory Map */
+
+/* SDRAM Bank #1 */
+#define PHYS_SDRAM_1			DDR_BASE
+#define PHYS_SDRAM_1_SIZE		0x80000000 /* 2GB */
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+
+/* Initial environment variables */
+
+#define CONFIG_EXTRA_ENV_SETTINGS	"silent=y\0"
+#define CONFIG_BOOTARGS			"earlycon=serial,0xf4329148 console=ttyS0,115200 root=/dev/ram0"
+
+/* Monitor Command Prompt */
+
+/* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE		256
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+					sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+
+/* max command args */
+#define CONFIG_SYS_MAXARGS		64
+
+#endif /* __PRESIDIO_ASIC_H */