Linux PSVita initial support (over Linux 62393dbcbe0f3001691e4bd479a25beb5941f2ed)

0001-arm-Add-initial-PSVita-support.patch

From ecba9fec7aa4bac172addd78a468a87b06b5b0da Mon Sep 17 00:00:00 2001
From: Sergi Granell <xerpi.g.12@gmail.com>
Date: Wed, 19 Dec 2018 19:04:27 +0100
Subject: [PATCH] arm: Add initial PSVita support

Signed-off-by: Sergi Granell <xerpi.g.12@gmail.com>
---
 arch/arm/Kconfig                 |  2 ++
 arch/arm/Kconfig.debug           | 23 ++++++++++---
 arch/arm/Makefile                |  1 +
 arch/arm/boot/dts/vita.dts       | 56 ++++++++++++++++++++++++++++++++
 arch/arm/include/debug/vita.S    | 37 +++++++++++++++++++++
 arch/arm/mach-vita/Kconfig       | 15 +++++++++
 arch/arm/mach-vita/Makefile      |  1 +
 arch/arm/mach-vita/Makefile.boot |  7 ++++
 arch/arm/mach-vita/vita.c        | 23 +++++++++++++
 9 files changed, 160 insertions(+), 5 deletions(-)
 create mode 100644 arch/arm/boot/dts/vita.dts
 create mode 100644 arch/arm/include/debug/vita.S
 create mode 100644 arch/arm/mach-vita/Kconfig
 create mode 100644 arch/arm/mach-vita/Makefile
 create mode 100644 arch/arm/mach-vita/Makefile.boot
 create mode 100644 arch/arm/mach-vita/vita.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 91be74d8df65..67133f5cab16 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -635,6 +635,8 @@ config ARCH_OMAP1
 	help
 	  Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
 
+source "arch/arm/mach-vita/Kconfig"
+
 endchoice
 
 menu "Multiple platform selection"
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index d6a49f59ecd9..64094729bf47 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1303,6 +1303,14 @@ choice
 		  This option selects UART0 at 0xb0090000. This is appropriate for
 		  Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
 
+	config DEBUG_VITA_UART0
+		bool "Kernel low-level debugging on PSVita using UART0"
+		depends on ARCH_VITA
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to UART0 on the PSVita platform.
+
+
 	config DEBUG_VF_UART
 		bool "Vybrid UART"
 		depends on SOC_VF610
@@ -1528,6 +1536,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/tegra.S" if DEBUG_TEGRA_UART
 	default "debug/ux500.S" if DEBUG_UX500_UART
 	default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
+	default "debug/vita.S" if DEBUG_VITA_UART0
 	default "debug/vf.S" if DEBUG_VF_UART
 	default "debug/vt8500.S" if DEBUG_VT8500_UART0
 	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
@@ -1633,6 +1642,7 @@ config DEBUG_UART_PHYS
 	default 0xd4017000 if DEBUG_MMP_UART2
 	default 0xd4018000 if DEBUG_MMP_UART3
 	default 0xe0000000 if DEBUG_SPEAR13XX
+	default 0xe2030000 if DEBUG_VITA_UART0
 	default 0xe4007000 if DEBUG_HIP04_UART
 	default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0
 	default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1
@@ -1681,7 +1691,7 @@ config DEBUG_UART_PHYS
 		DEBUG_S3C64XX_UART || \
 		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
 		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
-		DEBUG_AT91_UART
+		DEBUG_AT91_UART || DEBUG_VITA_UART0
 
 config DEBUG_UART_VIRT
 	hex "Virtual base address of debug UART"
@@ -1705,6 +1715,7 @@ config DEBUG_UART_VIRT
 	default 0xf1c28000 if DEBUG_SUNXI_UART0
 	default 0xf1c28400 if DEBUG_SUNXI_UART1
 	default 0xf1f02800 if DEBUG_SUNXI_R_UART
+	default 0xf2030000 if DEBUG_VITA_UART0
 	default 0xf31004c0 if DEBUG_MESON_UARTAO
 	default 0xf4090000 if DEBUG_LPC32XX
 	default 0xf4200000 if DEBUG_GEMINI
@@ -1796,7 +1807,7 @@ config DEBUG_UART_VIRT
 		DEBUG_S3C64XX_UART || \
 		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
 		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
-		DEBUG_AT91_UART
+		DEBUG_AT91_UART || DEBUG_VITA_UART0
 
 config DEBUG_UART_8250_SHIFT
 	int "Register offset shift for the 8250 debug UART"
@@ -1833,7 +1844,8 @@ config DEBUG_UART_8250_FLOW_CONTROL
 
 config DEBUG_UNCOMPRESS
 	bool "Enable decompressor debugging via DEBUG_LL output"
-	depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
+	depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M || \
+		   ARCH_VITA
 	depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
 		     (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
 		     !DEBUG_BRCMSTB_UART
@@ -1846,12 +1858,13 @@ config DEBUG_UNCOMPRESS
 	  When this option is set, the selected DEBUG_LL output method
 	  will be re-used for normal decompressor output on multiplatform
 	  kernels.
-	  
+
 
 config UNCOMPRESS_INCLUDE
 	string
 	default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
-					PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
+					PLAT_SAMSUNG || ARM_SINGLE_ARMV7M || \
+					ARCH_VITA
 	default "mach/uncompress.h"
 
 config EARLY_PRINTK
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 05a91d8b89f3..ed0c899b68cf 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -221,6 +221,7 @@ machine-$(CONFIG_ARCH_U300)		+= u300
 machine-$(CONFIG_ARCH_U8500)		+= ux500
 machine-$(CONFIG_ARCH_VERSATILE)	+= versatile
 machine-$(CONFIG_ARCH_VEXPRESS)		+= vexpress
+machine-$(CONFIG_ARCH_VITA)		+= vita
 machine-$(CONFIG_ARCH_VT8500)		+= vt8500
 machine-$(CONFIG_ARCH_W90X900)		+= w90x900
 machine-$(CONFIG_ARCH_ZX)		+= zx
diff --git a/arch/arm/boot/dts/vita.dts b/arch/arm/boot/dts/vita.dts
new file mode 100644
index 000000000000..c2c2e99af6a0
--- /dev/null
+++ b/arch/arm/boot/dts/vita.dts
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Base Device Tree Source for the PlayStation Vita
+ *
+ * Copyright (C) 2018 Sergi Granell
+ *
+ */
+
+/dts-v1/;
+
+/ {
+	model = "PlayStation Vita";
+	compatible = "vita,vita";
+
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	chosen {
+		bootargs = "keep_bootcon earlyprintk";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <1>;
+		};
+
+		cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <2>;
+		};
+
+		cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <3>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x40200000 0x1FE00000>;
+	};
+
+};
diff --git a/arch/arm/include/debug/vita.S b/arch/arm/include/debug/vita.S
new file mode 100644
index 000000000000..00228fa841f9
--- /dev/null
+++ b/arch/arm/include/debug/vita.S
@@ -0,0 +1,37 @@
+/*
+ *  Copyright (C) 2018 Sergi Granell
+ *
+ * Debugging macro include header
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+#define VITA_UART_STATUS		(0x28)
+#define VITA_UART_WRITE_FIFO		(0x70)
+
+#define VITA_UART_STATUS_TXREADY	(1 << 8)
+#define VITA_UART_STATUS_DEVREADY	(1 << 9)
+
+	.macro	addruart,rp,rv,tmp
+	ldr	\rp, =CONFIG_DEBUG_UART_PHYS
+	ldr	\rv, =CONFIG_DEBUG_UART_VIRT
+	.endm
+
+	.macro	senduart,rd,rx
+	strb	\rd, [\rx, #(VITA_UART_WRITE_FIFO)]
+	.endm
+
+	.macro	waituart,rd,rx
+1001:	ldr	\rd, [\rx, #(VITA_UART_STATUS)]
+	tst	\rd, #VITA_UART_STATUS_TXREADY
+	beq	1001b
+	.endm
+
+	.macro	busyuart,rd,rx
+1001:	ldr	\rd, [\rx, #(VITA_UART_STATUS)]
+	tst	\rd, #VITA_UART_STATUS_DEVREADY
+	beq	1001b
+	.endm
diff --git a/arch/arm/mach-vita/Kconfig b/arch/arm/mach-vita/Kconfig
new file mode 100644
index 000000000000..cde40913ce18
--- /dev/null
+++ b/arch/arm/mach-vita/Kconfig
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+config ARCH_VITA
+	bool "PlayStation Vita"
+	depends on MMU
+	select CPU_V7
+	select HAVE_SMP
+	select TIMER_OF
+	select COMMON_CLK
+	select GENERIC_CLOCKEVENTS
+	select GENERIC_IRQ_MULTI_HANDLER
+	select SPARSE_IRQ
+	select USE_OF
+	select ARM_GIC
+	help
+	  Support for the Sony PlayStation Vita gaming console
diff --git a/arch/arm/mach-vita/Makefile b/arch/arm/mach-vita/Makefile
new file mode 100644
index 000000000000..09880cd7e426
--- /dev/null
+++ b/arch/arm/mach-vita/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_VITA) += vita.o
diff --git a/arch/arm/mach-vita/Makefile.boot b/arch/arm/mach-vita/Makefile.boot
new file mode 100644
index 000000000000..4bdb4599acdb
--- /dev/null
+++ b/arch/arm/mach-vita/Makefile.boot
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# The Vita's shared (NS) DRAM base is actually at 0x40200000
+# but __fixup_pv_table expects it to be 16MiB aligned
+zreladdr-y     += 0x41008000
+params_phys-y  := 0x41000100
+initrd_phys-y  := 0x41000000
diff --git a/arch/arm/mach-vita/vita.c b/arch/arm/mach-vita/vita.c
new file mode 100644
index 000000000000..810e74b19f92
--- /dev/null
+++ b/arch/arm/mach-vita/vita.c
@@ -0,0 +1,23 @@
+/*
+ * Device Tree support for PlayStation Vita
+ *
+ * Copyright (C) 2018 Sergi Granell
+ *
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/init.h>
+
+#include <asm/mach/arch.h>
+
+static const char * const vita_dt_compat[] = {
+	"vita,vita",
+	NULL,
+};
+
+DT_MACHINE_START(VITA_DT, "PlayStation Vita (Device Tree Support)")
+	.dt_compat	= vita_dt_compat,
+MACHINE_END
-- 
2.20.1

	

vita_send_blobs.sh

#!/bin/sh

set -e

make ARCH=arm CROSS_COMPILE=arm-linux- zImage vita.dtb -j8

curl --ftp-create-dirs -T arch/arm/boot/zImage ftp://$PSVITAIP:1337/ux0:/linux/zImage
curl --ftp-create-dirs -T arch/arm/boot/dts/vita.dtb ftp://$PSVITAIP:1337/ux0:/linux/vita.dtb

echo "Sent!"