FIXME: ATA experiments

frno7 · Jul 10, 2021 · f6ec831 · f6ec831
1 parent 8e90d12
commit f6ec831
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Showing 6 changed files with 576 additions and 10 deletions.
diff --git a/arch/mips/configs/ps2_defconfig b/arch/mips/configs/ps2_defconfig
@@ -1,19 +1,17 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/mips 5.4.14 Kernel Configuration
+# Linux/mips 5.4.83 Kernel Configuration
 #
 
 #
-# Compiler: mipsr5900el-unknown-linux-gnu-gcc (Gentoo 9.2.0-r3 p4) 9.2.0
+# Compiler: mipsr5900el-unknown-linux-gnu-gcc (Gentoo 9.3.0-r2 p4) 9.3.0
 #
 CONFIG_CC_IS_GCC=y
-CONFIG_GCC_VERSION=90200
+CONFIG_GCC_VERSION=90300
 CONFIG_CLANG_VERSION=0
 CONFIG_CC_CAN_LINK=y
 CONFIG_CC_HAS_ASM_GOTO=y
 CONFIG_CC_HAS_ASM_INLINE=y
-CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
-CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED=y
 CONFIG_IRQ_WORK=y
 CONFIG_BUILDTIME_EXTABLE_SORT=y
 
@@ -23,7 +21,6 @@ CONFIG_BUILDTIME_EXTABLE_SORT=y
 CONFIG_BROKEN_ON_SMP=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 # CONFIG_COMPILE_TEST is not set
-# CONFIG_HEADER_TEST is not set
 CONFIG_LOCALVERSION=""
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_BUILD_SALT=""
@@ -129,7 +126,7 @@ CONFIG_IPC_NS=y
 # CONFIG_SYSFS_DEPRECATED is not set
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_INITRAMFS_SOURCE="../initramfs-ps2"
+CONFIG_INITRAMFS_SOURCE="../initramfs/ps2"
 CONFIG_INITRAMFS_ROOT_UID=1000
 CONFIG_INITRAMFS_ROOT_GID=1000
 # CONFIG_RD_GZIP is not set
@@ -681,8 +678,6 @@ CONFIG_ALLOW_DEV_COREDUMP=y
 # CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
 # CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
 CONFIG_GENERIC_CPU_AUTOPROBE=y
-CONFIG_REGMAP=y
-CONFIG_REGMAP_I2C=m
 CONFIG_DMA_SHARED_BUFFER=y
 # CONFIG_DMA_FENCE_TRACE is not set
 # end of Generic Driver Options
@@ -870,6 +865,7 @@ CONFIG_ATA_BMDMA=y
 # PIO-only SFF controllers
 #
 CONFIG_PATA_PLATFORM=m
+CONFIG_PATA_PS2=m
 
 #
 # Generic fallback / legacy drivers
@@ -1724,7 +1720,6 @@ CONFIG_LEDS_CLASS=y
 # CONFIG_LEDS_BLINKM is not set
 # CONFIG_LEDS_MLXREG is not set
 # CONFIG_LEDS_USER is not set
-# CONFIG_LEDS_TI_LMU_COMMON is not set
 
 #
 # LED Triggers

diff --git a/arch/mips/include/asm/mach-ps2/iop.h b/arch/mips/include/asm/mach-ps2/iop.h
@@ -12,6 +12,7 @@
 #define IOP_RAM_SIZE	0x200000
 
 #define IOP_OHCI_BASE	0x1f801600
+#define IOP_PATA_BASE	0x14000040
 
 /**
  * iop_addr_t - I/O processor (IOP) bus address

diff --git a/arch/mips/ps2/devices.c b/arch/mips/ps2/devices.c
@@ -52,6 +52,27 @@ static struct platform_device ohci_device = {
 	.resource	= ohci_resources,
 };
 
+static struct resource pata_resources[] = {	/* FIXME: Subresource to IOP */
+	[0] = {
+		.name	= "PATA",
+		.start	= IOP_PATA_BASE,
+		.end	= IOP_PATA_BASE + 0x1f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_IOP_DEV9,
+		.end	= IRQ_IOP_DEV9,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_SHAREABLE,
+	},
+};
+
+static struct platform_device pata_device = {
+	.name		= "pata-ps2",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(pata_resources),
+	.resource	= pata_resources,
+};
+
 static struct resource gs_resources[] = {
 	[0] = {
 		.name	= "Graphics Synthesizer",
@@ -91,6 +112,7 @@ static struct platform_device rtc_device = {
 static struct platform_device *ps2_platform_devices[] __initdata = {
 	&iop_device,
 	&ohci_device,
+	&pata_device,
 	&gs_device,
 	&gs_drm_device,	/* FIXME */
 	&rtc_device,

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
@@ -1047,6 +1047,14 @@ config PATA_PLATFORM
 
 	  If unsure, say N.
 
+config PATA_PS2
+	tristate "PlayStation 2 PATA support"
+	depends on SONY_PS2
+	help
+	  This option enables support for PATA interface harddisks, found
+	  on PlayStation 2 models SCPH 10000-500xx having an appropriate
+	  network adapter accessory.
+
 config PATA_OF_PLATFORM
 	tristate "OpenFirmware platform device PATA support"
 	depends on PATA_PLATFORM && OF

diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
@@ -107,6 +107,7 @@ obj-$(CONFIG_PATA_OPTI)		+= pata_opti.o
 obj-$(CONFIG_PATA_PCMCIA)	+= pata_pcmcia.o
 obj-$(CONFIG_PATA_PALMLD)	+= pata_palmld.o
 obj-$(CONFIG_PATA_PLATFORM)	+= pata_platform.o
+obj-$(CONFIG_PATA_PS2)		+= pata_ps2.o
 obj-$(CONFIG_PATA_OF_PLATFORM)	+= pata_of_platform.o
 obj-$(CONFIG_PATA_RB532)	+= pata_rb532_cf.o
 obj-$(CONFIG_PATA_RZ1000)	+= pata_rz1000.o