ARM: remove w90x900 platform

This removes the old Winbond w90x900 platform, also known
as Nuvoton NUC900. Wan Zongshun originally contributed
the port and maintained it since then.

From all I can tell, this platform is no longer being used
with modern kernels, based on various indications:

- The supported chips (nuc910/950/960) are no longer marketed
  by the manufacturer

- Newer chips from the same family (nuc97x, nuc980, n329x)
  that are still marketed have Linux BSPs but those were never
  submitted for upstream inclusion.

- The last patch from the platform maintainer was in 2011.

- All patches to w90x900 platform specific files afterwards
  are cleanups that were apparently done without access to
  test hardware.

- Both the website and the email address listed in the
  MAINTAINERS have become unreachable.

Link: https://lore.kernel.org/r/20190809202749.742267-17-arnd@arndb.de
Cc: "Wanzongshun (Vincent)" <wanzongshun@huawei.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 537 deletions

diff --git a/arch/arm/mach-w90x900/dev.c b/arch/arm/mach-w90x900/dev.c
deleted file mode 100644
index ce5fe400cb99..000000000000
--- a/arch/arm/mach-w90x900/dev.c
+++ /dev/null
@@ -1,537 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/arm/mach-w90x900/dev.c
- *
- * Copyright (C) 2009 Nuvoton corporation.
- *
- * Wan ZongShun <mcuos.com@gmail.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/timer.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/cpu.h>
-
-#include <linux/mtd/physmap.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-
-#include <linux/spi/spi.h>
-#include <linux/spi/flash.h>
-
-#include <asm/system_misc.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/mach/irq.h>
-#include <asm/mach-types.h>
-
-#include <mach/regs-serial.h>
-#include <linux/platform_data/spi-nuc900.h>
-#include <mach/map.h>
-#include <linux/platform_data/video-nuc900fb.h>
-#include <mach/regs-ldm.h>
-#include <linux/platform_data/keypad-w90p910.h>
-
-#include "cpu.h"
-
-/*NUC900 evb norflash driver data */
-
-#define NUC900_FLASH_BASE	0xA0000000
-#define NUC900_FLASH_SIZE	0x400000
-#define SPIOFFSET		0x200
-#define SPIOREG_SIZE		0x100
-
-static struct mtd_partition nuc900_flash_partitions[] = {
-	{
-		.name	=	"NOR Partition 1 for kernel (960K)",
-		.size	=	0xF0000,
-		.offset	=	0x10000,
-	},
-	{
-		.name	=	"NOR Partition 2 for image (1M)",
-		.size	=	0x100000,
-		.offset	=	0x100000,
-	},
-	{
-		.name	=	"NOR Partition 3 for user (2M)",
-		.size	=	0x200000,
-		.offset	=	0x00200000,
-	}
-};
-
-static struct physmap_flash_data nuc900_flash_data = {
-	.width		=	2,
-	.parts		=	nuc900_flash_partitions,
-	.nr_parts	=	ARRAY_SIZE(nuc900_flash_partitions),
-};
-
-static struct resource nuc900_flash_resources[] = {
-	{
-		.start	=	NUC900_FLASH_BASE,
-		.end	=	NUC900_FLASH_BASE + NUC900_FLASH_SIZE - 1,
-		.flags	=	IORESOURCE_MEM,
-	}
-};
-
-static struct platform_device nuc900_flash_device = {
-	.name		=	"physmap-flash",
-	.id		=	0,
-	.dev		= {
-				.platform_data = &nuc900_flash_data,
-			},
-	.resource	=	nuc900_flash_resources,
-	.num_resources	=	ARRAY_SIZE(nuc900_flash_resources),
-};
-
-/* USB EHCI Host Controller */
-
-static struct resource nuc900_usb_ehci_resource[] = {
-	[0] = {
-		.start = W90X900_PA_USBEHCIHOST,
-		.end   = W90X900_PA_USBEHCIHOST + W90X900_SZ_USBEHCIHOST - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_USBH,
-		.end   = IRQ_USBH,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static u64 nuc900_device_usb_ehci_dmamask = 0xffffffffUL;
-
-static struct platform_device nuc900_device_usb_ehci = {
-	.name		  = "nuc900-ehci",
-	.id		  = -1,
-	.num_resources	  = ARRAY_SIZE(nuc900_usb_ehci_resource),
-	.resource	  = nuc900_usb_ehci_resource,
-	.dev              = {
-		.dma_mask = &nuc900_device_usb_ehci_dmamask,
-		.coherent_dma_mask = 0xffffffffUL
-	}
-};
-
-/* USB OHCI Host Controller */
-
-static struct resource nuc900_usb_ohci_resource[] = {
-	[0] = {
-		.start = W90X900_PA_USBOHCIHOST,
-		.end   = W90X900_PA_USBOHCIHOST + W90X900_SZ_USBOHCIHOST - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_USBH,
-		.end   = IRQ_USBH,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static u64 nuc900_device_usb_ohci_dmamask = 0xffffffffUL;
-static struct platform_device nuc900_device_usb_ohci = {
-	.name		  = "nuc900-ohci",
-	.id		  = -1,
-	.num_resources	  = ARRAY_SIZE(nuc900_usb_ohci_resource),
-	.resource	  = nuc900_usb_ohci_resource,
-	.dev              = {
-		.dma_mask = &nuc900_device_usb_ohci_dmamask,
-		.coherent_dma_mask = 0xffffffffUL
-	}
-};
-
-/* USB Device (Gadget)*/
-
-static struct resource nuc900_usbgadget_resource[] = {
-	[0] = {
-		.start = W90X900_PA_USBDEV,
-		.end   = W90X900_PA_USBDEV + W90X900_SZ_USBDEV - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_USBD,
-		.end   = IRQ_USBD,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device nuc900_device_usbgadget = {
-	.name		= "nuc900-usbgadget",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_usbgadget_resource),
-	.resource	= nuc900_usbgadget_resource,
-};
-
-/* MAC device */
-
-static struct resource nuc900_emc_resource[] = {
-	[0] = {
-		.start = W90X900_PA_EMC,
-		.end   = W90X900_PA_EMC + W90X900_SZ_EMC - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_EMCTX,
-		.end   = IRQ_EMCTX,
-		.flags = IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start = IRQ_EMCRX,
-		.end   = IRQ_EMCRX,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static u64 nuc900_device_emc_dmamask = 0xffffffffUL;
-static struct platform_device nuc900_device_emc = {
-	.name		= "nuc900-emc",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_emc_resource),
-	.resource	= nuc900_emc_resource,
-	.dev              = {
-		.dma_mask = &nuc900_device_emc_dmamask,
-		.coherent_dma_mask = 0xffffffffUL
-	}
-};
-
-/* SPI device */
-
-static struct nuc900_spi_info nuc900_spiflash_data = {
-	.num_cs		= 1,
-	.lsb		= 0,
-	.txneg		= 1,
-	.rxneg		= 0,
-	.divider	= 24,
-	.sleep		= 0,
-	.txnum		= 0,
-	.txbitlen	= 8,
-	.bus_num	= 0,
-};
-
-static struct resource nuc900_spi_resource[] = {
-	[0] = {
-		.start = W90X900_PA_I2C + SPIOFFSET,
-		.end   = W90X900_PA_I2C + SPIOFFSET + SPIOREG_SIZE - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_SSP,
-		.end   = IRQ_SSP,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device nuc900_device_spi = {
-	.name		= "nuc900-spi",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_spi_resource),
-	.resource	= nuc900_spi_resource,
-	.dev		= {
-				.platform_data = &nuc900_spiflash_data,
-			}
-};
-
-/* spi device, spi flash info */
-
-static struct mtd_partition nuc900_spi_flash_partitions[] = {
-	{
-		.name = "bootloader(spi)",
-		.size = 0x0100000,
-		.offset = 0,
-	},
-};
-
-static struct flash_platform_data nuc900_spi_flash_data = {
-	.name = "m25p80",
-	.parts =  nuc900_spi_flash_partitions,
-	.nr_parts = ARRAY_SIZE(nuc900_spi_flash_partitions),
-	.type = "w25x16",
-};
-
-static struct spi_board_info nuc900_spi_board_info[] __initdata = {
-	{
-		.modalias = "m25p80",
-		.max_speed_hz = 20000000,
-		.bus_num = 0,
-		.chip_select = 0,
-		.platform_data = &nuc900_spi_flash_data,
-		.mode = SPI_MODE_0,
-	},
-};
-
-/* WDT Device */
-
-static struct resource nuc900_wdt_resource[] = {
-	[0] = {
-		.start = W90X900_PA_TIMER,
-		.end   = W90X900_PA_TIMER + W90X900_SZ_TIMER - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_WDT,
-		.end   = IRQ_WDT,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device nuc900_device_wdt = {
-	.name		= "nuc900-wdt",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_wdt_resource),
-	.resource	= nuc900_wdt_resource,
-};
-
-/*
- * public device definition between 910 and 920, or 910
- * and 950 or 950 and 960...,their dev platform register
- * should be in specific file such as nuc950, nuc960 c
- * files rather than the public dev.c file here. so the
- * corresponding platform_device definition should not be
- * static.
-*/
-
-/* RTC controller*/
-
-static struct resource nuc900_rtc_resource[] = {
-	[0] = {
-		.start = W90X900_PA_RTC,
-		.end   = W90X900_PA_RTC + 0xff,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_RTC,
-		.end   = IRQ_RTC,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device nuc900_device_rtc = {
-	.name		= "nuc900-rtc",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_rtc_resource),
-	.resource	= nuc900_rtc_resource,
-};
-
-/*TouchScreen controller*/
-
-static struct resource nuc900_ts_resource[] = {
-	[0] = {
-		.start = W90X900_PA_ADC,
-		.end   = W90X900_PA_ADC + W90X900_SZ_ADC-1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_ADC,
-		.end   = IRQ_ADC,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device nuc900_device_ts = {
-	.name		= "nuc900-ts",
-	.id		= -1,
-	.resource	= nuc900_ts_resource,
-	.num_resources	= ARRAY_SIZE(nuc900_ts_resource),
-};
-
-/* FMI Device */
-
-static struct resource nuc900_fmi_resource[] = {
-	[0] = {
-		.start = W90X900_PA_FMI,
-		.end   = W90X900_PA_FMI + W90X900_SZ_FMI - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_FMI,
-		.end   = IRQ_FMI,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device nuc900_device_fmi = {
-	.name		= "nuc900-fmi",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_fmi_resource),
-	.resource	= nuc900_fmi_resource,
-};
-
-/* KPI controller*/
-
-static int nuc900_keymap[] = {
-	KEY(0, 0, KEY_A),
-	KEY(0, 1, KEY_B),
-	KEY(0, 2, KEY_C),
-	KEY(0, 3, KEY_D),
-
-	KEY(1, 0, KEY_E),
-	KEY(1, 1, KEY_F),
-	KEY(1, 2, KEY_G),
-	KEY(1, 3, KEY_H),
-
-	KEY(2, 0, KEY_I),
-	KEY(2, 1, KEY_J),
-	KEY(2, 2, KEY_K),
-	KEY(2, 3, KEY_L),
-
-	KEY(3, 0, KEY_M),
-	KEY(3, 1, KEY_N),
-	KEY(3, 2, KEY_O),
-	KEY(3, 3, KEY_P),
-};
-
-static struct matrix_keymap_data nuc900_map_data = {
-	.keymap			= nuc900_keymap,
-	.keymap_size		= ARRAY_SIZE(nuc900_keymap),
-};
-
-struct w90p910_keypad_platform_data nuc900_keypad_info = {
-	.keymap_data	= &nuc900_map_data,
-	.prescale	= 0xfa,
-	.debounce	= 0x50,
-};
-
-static struct resource nuc900_kpi_resource[] = {
-	[0] = {
-		.start = W90X900_PA_KPI,
-		.end   = W90X900_PA_KPI + W90X900_SZ_KPI - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_KPI,
-		.end   = IRQ_KPI,
-		.flags = IORESOURCE_IRQ,
-	}
-
-};
-
-struct platform_device nuc900_device_kpi = {
-	.name		= "nuc900-kpi",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_kpi_resource),
-	.resource	= nuc900_kpi_resource,
-	.dev		= {
-				.platform_data = &nuc900_keypad_info,
-			}
-};
-
-/* LCD controller*/
-
-static struct nuc900fb_display nuc900_lcd_info[] = {
-	/* Giantplus Technology GPM1040A0 320x240 Color TFT LCD */
-	[0] = {
-		.type		= LCM_DCCS_VA_SRC_RGB565,
-		.width		= 320,
-		.height		= 240,
-		.xres		= 320,
-		.yres		= 240,
-		.bpp		= 16,
-		.pixclock	= 200000,
-		.left_margin	= 34,
-		.right_margin   = 54,
-		.hsync_len	= 10,
-		.upper_margin	= 18,
-		.lower_margin	= 4,
-		.vsync_len	= 1,
-		.dccs		= 0x8e00041a,
-		.devctl		= 0x060800c0,
-		.fbctrl		= 0x00a000a0,
-		.scale		= 0x04000400,
-	},
-};
-
-static struct nuc900fb_mach_info nuc900_fb_info = {
-#if defined(CONFIG_GPM1040A0_320X240)
-	.displays		= &nuc900_lcd_info[0],
-#else
-	.displays		= nuc900_lcd_info,
-#endif
-	.num_displays		= ARRAY_SIZE(nuc900_lcd_info),
-	.default_display	= 0,
-	.gpio_dir		= 0x00000004,
-	.gpio_dir_mask		= 0xFFFFFFFD,
-	.gpio_data		= 0x00000004,
-	.gpio_data_mask		= 0xFFFFFFFD,
-};
-
-static struct resource nuc900_lcd_resource[] = {
-	[0] = {
-		.start = W90X900_PA_LCD,
-		.end   = W90X900_PA_LCD + W90X900_SZ_LCD - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_LCD,
-		.end   = IRQ_LCD,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-static u64 nuc900_device_lcd_dmamask = -1;
-struct platform_device nuc900_device_lcd = {
-	.name             = "nuc900-lcd",
-	.id               = -1,
-	.num_resources    = ARRAY_SIZE(nuc900_lcd_resource),
-	.resource         = nuc900_lcd_resource,
-	.dev              = {
-		.dma_mask               = &nuc900_device_lcd_dmamask,
-		.coherent_dma_mask      = -1,
-		.platform_data = &nuc900_fb_info,
-	}
-};
-
-/* AUDIO controller*/
-static u64 nuc900_device_audio_dmamask = -1;
-static struct resource nuc900_ac97_resource[] = {
-	[0] = {
-		.start = W90X900_PA_ACTL,
-		.end   = W90X900_PA_ACTL + W90X900_SZ_ACTL - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_ACTL,
-		.end   = IRQ_ACTL,
-		.flags = IORESOURCE_IRQ,
-	}
-
-};
-
-struct platform_device nuc900_device_ac97 = {
-	.name		= "nuc900-ac97",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(nuc900_ac97_resource),
-	.resource	= nuc900_ac97_resource,
-	.dev              = {
-		.dma_mask               = &nuc900_device_audio_dmamask,
-		.coherent_dma_mask      = -1,
-	}
-};
-
-/*Here should be your evb resourse,such as LCD*/
-
-static struct platform_device *nuc900_public_dev[] __initdata = {
-	&nuc900_serial_device,
-	&nuc900_flash_device,
-	&nuc900_device_usb_ehci,
-	&nuc900_device_usb_ohci,
-	&nuc900_device_usbgadget,
-	&nuc900_device_emc,
-	&nuc900_device_spi,
-	&nuc900_device_wdt,
-	&nuc900_device_ac97,
-};
-
-/* Provide adding specific CPU platform devices API */
-
-void __init nuc900_board_init(struct platform_device **device, int size)
-{
-	cpu_idle_poll_ctrl(true);
-	platform_add_devices(device, size);
-	platform_add_devices(nuc900_public_dev, ARRAY_SIZE(nuc900_public_dev));
-	spi_register_board_info(nuc900_spi_board_info,
-					ARRAY_SIZE(nuc900_spi_board_info));
-}
-