[PATCH 1/8] x86: remove ts5500 platforms support
From: Arnd Bergmann
Date: Fri May 22 2026 - 10:29:32 EST
From: Arnd Bergmann <arnd@xxxxxxxx>
Support for Élan was removed in 7.1, but the ts5500 platform
still depends on it. Remove this one as well, not that it
cannot be used any more.
Cc: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
.../ABI/testing/sysfs-platform-ts5500 | 54 ---
MAINTAINERS | 5 -
arch/x86/Kconfig | 9 -
arch/x86/platform/Makefile | 1 -
arch/x86/platform/ts5500/Makefile | 2 -
arch/x86/platform/ts5500/ts5500.c | 341 ------------------
6 files changed, 412 deletions(-)
delete mode 100644 Documentation/ABI/testing/sysfs-platform-ts5500
delete mode 100644 arch/x86/platform/ts5500/Makefile
delete mode 100644 arch/x86/platform/ts5500/ts5500.c
diff --git a/Documentation/ABI/testing/sysfs-platform-ts5500 b/Documentation/ABI/testing/sysfs-platform-ts5500
deleted file mode 100644
index e685957caa12..000000000000
--- a/Documentation/ABI/testing/sysfs-platform-ts5500
+++ /dev/null
@@ -1,54 +0,0 @@
-What: /sys/devices/platform/ts5500/adc
-Date: January 2013
-KernelVersion: 3.7
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Indicates the presence of an A/D Converter. If it is present,
- it will display "1", otherwise "0".
-
-What: /sys/devices/platform/ts5500/ereset
-Date: January 2013
-KernelVersion: 3.7
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Indicates the presence of an external reset. If it is present,
- it will display "1", otherwise "0".
-
-What: /sys/devices/platform/ts5500/id
-Date: January 2013
-KernelVersion: 3.7
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Product ID of the TS board. TS-5500 ID is 0x60.
-
-What: /sys/devices/platform/ts5500/jumpers
-Date: January 2013
-KernelVersion: 3.7
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Bitfield showing the jumpers' state. If a jumper is present,
- the corresponding bit is set. For instance, 0x0e means jumpers
- 2, 3 and 4 are set.
-
-What: /sys/devices/platform/ts5500/name
-Date: July 2014
-KernelVersion: 3.16
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Model name of the TS board, e.g. "TS-5500".
-
-What: /sys/devices/platform/ts5500/rs485
-Date: January 2013
-KernelVersion: 3.7
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Indicates the presence of the RS485 option. If it is present,
- it will display "1", otherwise "0".
-
-What: /sys/devices/platform/ts5500/sram
-Date: January 2013
-KernelVersion: 3.7
-Contact: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-Description:
- Indicates the presence of the SRAM option. If it is present,
- it will display "1", otherwise "0".
diff --git a/MAINTAINERS b/MAINTAINERS
index e706b468a53f..dd3fceaa78d6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -26402,11 +26402,6 @@ S: Maintained
F: Documentation/process/contribution-maturity-model.rst
F: Documentation/process/researcher-guidelines.rst
-TECHNOLOGIC SYSTEMS TS-5500 PLATFORM SUPPORT
-M: "Savoir-faire Linux Inc." <kernel@xxxxxxxxxxxxxxxxxxxx>
-S: Maintained
-F: arch/x86/platform/ts5500/
-
TECHNOTREND USB IR RECEIVER
M: Sean Young <sean@xxxxxxxx>
L: linux-media@xxxxxxxxxxxxxxx
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f24810015234..a188ed90b1ca 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -3056,15 +3056,6 @@ config GEOS
help
This option enables system support for the Traverse Technologies GEOS.
-config TS5500
- bool "Technologic Systems TS-5500 platform support"
- depends on MELAN
- select CHECK_SIGNATURE
- select NEW_LEDS
- select LEDS_CLASS
- help
- This option enables system support for the Technologic Systems TS-5500.
-
endif # X86_32
config AMD_NB
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 3ed03a2552d0..727b92d0ca25 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -10,5 +10,4 @@ obj-y += intel-mid/
obj-y += intel-quark/
obj-y += olpc/
obj-y += scx200/
-obj-y += ts5500/
obj-y += uv/
diff --git a/arch/x86/platform/ts5500/Makefile b/arch/x86/platform/ts5500/Makefile
deleted file mode 100644
index 910fe9e3ffb4..000000000000
--- a/arch/x86/platform/ts5500/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_TS5500) += ts5500.o
diff --git a/arch/x86/platform/ts5500/ts5500.c b/arch/x86/platform/ts5500/ts5500.c
deleted file mode 100644
index 0b67da056fd9..000000000000
--- a/arch/x86/platform/ts5500/ts5500.c
+++ /dev/null
@@ -1,341 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Technologic Systems TS-5500 Single Board Computer support
- *
- * Copyright (C) 2013-2014 Savoir-faire Linux Inc.
- * Vivien Didelot <vivien.didelot@xxxxxxxxxxxxxxxxxxxx>
- *
- * This driver registers the Technologic Systems TS-5500 Single Board Computer
- * (SBC) and its devices, and exposes information to userspace such as jumpers'
- * state or available options. For further information about sysfs entries, see
- * Documentation/ABI/testing/sysfs-platform-ts5500.
- *
- * This code may be extended to support similar x86-based platforms.
- * Actually, the TS-5500 and TS-5400 are supported.
- */
-
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/leds.h>
-#include <linux/init.h>
-#include <linux/platform_data/max197.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-/* Product code register */
-#define TS5500_PRODUCT_CODE_ADDR 0x74
-#define TS5500_PRODUCT_CODE 0x60 /* TS-5500 product code */
-#define TS5400_PRODUCT_CODE 0x40 /* TS-5400 product code */
-
-/* SRAM/RS-485/ADC options, and RS-485 RTS/Automatic RS-485 flags register */
-#define TS5500_SRAM_RS485_ADC_ADDR 0x75
-#define TS5500_SRAM BIT(0) /* SRAM option */
-#define TS5500_RS485 BIT(1) /* RS-485 option */
-#define TS5500_ADC BIT(2) /* A/D converter option */
-#define TS5500_RS485_RTS BIT(6) /* RTS for RS-485 */
-#define TS5500_RS485_AUTO BIT(7) /* Automatic RS-485 */
-
-/* External Reset/Industrial Temperature Range options register */
-#define TS5500_ERESET_ITR_ADDR 0x76
-#define TS5500_ERESET BIT(0) /* External Reset option */
-#define TS5500_ITR BIT(1) /* Indust. Temp. Range option */
-
-/* LED/Jumpers register */
-#define TS5500_LED_JP_ADDR 0x77
-#define TS5500_LED BIT(0) /* LED flag */
-#define TS5500_JP1 BIT(1) /* Automatic CMOS */
-#define TS5500_JP2 BIT(2) /* Enable Serial Console */
-#define TS5500_JP3 BIT(3) /* Write Enable Drive A */
-#define TS5500_JP4 BIT(4) /* Fast Console (115K baud) */
-#define TS5500_JP5 BIT(5) /* User Jumper */
-#define TS5500_JP6 BIT(6) /* Console on COM1 (req. JP2) */
-#define TS5500_JP7 BIT(7) /* Undocumented (Unused) */
-
-/* A/D Converter registers */
-#define TS5500_ADC_CONV_BUSY_ADDR 0x195 /* Conversion state register */
-#define TS5500_ADC_CONV_BUSY BIT(0)
-#define TS5500_ADC_CONV_INIT_LSB_ADDR 0x196 /* Start conv. / LSB register */
-#define TS5500_ADC_CONV_MSB_ADDR 0x197 /* MSB register */
-#define TS5500_ADC_CONV_DELAY 12 /* usec */
-
-/**
- * struct ts5500_sbc - TS-5500 board description
- * @name: Board model name.
- * @id: Board product ID.
- * @sram: Flag for SRAM option.
- * @rs485: Flag for RS-485 option.
- * @adc: Flag for Analog/Digital converter option.
- * @ereset: Flag for External Reset option.
- * @itr: Flag for Industrial Temperature Range option.
- * @jumpers: Bitfield for jumpers' state.
- */
-struct ts5500_sbc {
- const char *name;
- int id;
- bool sram;
- bool rs485;
- bool adc;
- bool ereset;
- bool itr;
- u8 jumpers;
-};
-
-/* Board signatures in BIOS shadow RAM */
-static const struct {
- const char * const string;
- const ssize_t offset;
-} ts5500_signatures[] __initconst = {
- { "TS-5x00 AMD Elan", 0xb14 },
-};
-
-static int __init ts5500_check_signature(void)
-{
- void __iomem *bios;
- int i, ret = -ENODEV;
-
- bios = ioremap(0xf0000, 0x10000);
- if (!bios)
- return -ENOMEM;
-
- for (i = 0; i < ARRAY_SIZE(ts5500_signatures); i++) {
- if (check_signature(bios + ts5500_signatures[i].offset,
- ts5500_signatures[i].string,
- strlen(ts5500_signatures[i].string))) {
- ret = 0;
- break;
- }
- }
-
- iounmap(bios);
- return ret;
-}
-
-static int __init ts5500_detect_config(struct ts5500_sbc *sbc)
-{
- u8 tmp;
- int ret = 0;
-
- if (!request_region(TS5500_PRODUCT_CODE_ADDR, 4, "ts5500"))
- return -EBUSY;
-
- sbc->id = inb(TS5500_PRODUCT_CODE_ADDR);
- if (sbc->id == TS5500_PRODUCT_CODE) {
- sbc->name = "TS-5500";
- } else if (sbc->id == TS5400_PRODUCT_CODE) {
- sbc->name = "TS-5400";
- } else {
- pr_err("ts5500: unknown product code 0x%x\n", sbc->id);
- ret = -ENODEV;
- goto cleanup;
- }
-
- tmp = inb(TS5500_SRAM_RS485_ADC_ADDR);
- sbc->sram = tmp & TS5500_SRAM;
- sbc->rs485 = tmp & TS5500_RS485;
- sbc->adc = tmp & TS5500_ADC;
-
- tmp = inb(TS5500_ERESET_ITR_ADDR);
- sbc->ereset = tmp & TS5500_ERESET;
- sbc->itr = tmp & TS5500_ITR;
-
- tmp = inb(TS5500_LED_JP_ADDR);
- sbc->jumpers = tmp & ~TS5500_LED;
-
-cleanup:
- release_region(TS5500_PRODUCT_CODE_ADDR, 4);
- return ret;
-}
-
-static ssize_t name_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct ts5500_sbc *sbc = dev_get_drvdata(dev);
-
- return sprintf(buf, "%s\n", sbc->name);
-}
-static DEVICE_ATTR_RO(name);
-
-static ssize_t id_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct ts5500_sbc *sbc = dev_get_drvdata(dev);
-
- return sprintf(buf, "0x%.2x\n", sbc->id);
-}
-static DEVICE_ATTR_RO(id);
-
-static ssize_t jumpers_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct ts5500_sbc *sbc = dev_get_drvdata(dev);
-
- return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
-}
-static DEVICE_ATTR_RO(jumpers);
-
-#define TS5500_ATTR_BOOL(_field) \
- static ssize_t _field##_show(struct device *dev, \
- struct device_attribute *attr, char *buf) \
- { \
- struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
- \
- return sprintf(buf, "%d\n", sbc->_field); \
- } \
- static DEVICE_ATTR_RO(_field)
-
-TS5500_ATTR_BOOL(sram);
-TS5500_ATTR_BOOL(rs485);
-TS5500_ATTR_BOOL(adc);
-TS5500_ATTR_BOOL(ereset);
-TS5500_ATTR_BOOL(itr);
-
-static struct attribute *ts5500_attributes[] = {
- &dev_attr_id.attr,
- &dev_attr_name.attr,
- &dev_attr_jumpers.attr,
- &dev_attr_sram.attr,
- &dev_attr_rs485.attr,
- &dev_attr_adc.attr,
- &dev_attr_ereset.attr,
- &dev_attr_itr.attr,
- NULL
-};
-
-static const struct attribute_group ts5500_attr_group = {
- .attrs = ts5500_attributes,
-};
-
-static struct resource ts5500_dio1_resource[] = {
- DEFINE_RES_IRQ_NAMED(7, "DIO1 interrupt"),
-};
-
-static struct platform_device ts5500_dio1_pdev = {
- .name = "ts5500-dio1",
- .id = -1,
- .resource = ts5500_dio1_resource,
- .num_resources = 1,
-};
-
-static struct resource ts5500_dio2_resource[] = {
- DEFINE_RES_IRQ_NAMED(6, "DIO2 interrupt"),
-};
-
-static struct platform_device ts5500_dio2_pdev = {
- .name = "ts5500-dio2",
- .id = -1,
- .resource = ts5500_dio2_resource,
- .num_resources = 1,
-};
-
-static void ts5500_led_set(struct led_classdev *led_cdev,
- enum led_brightness brightness)
-{
- outb(!!brightness, TS5500_LED_JP_ADDR);
-}
-
-static enum led_brightness ts5500_led_get(struct led_classdev *led_cdev)
-{
- return (inb(TS5500_LED_JP_ADDR) & TS5500_LED) ? LED_FULL : LED_OFF;
-}
-
-static struct led_classdev ts5500_led_cdev = {
- .name = "ts5500:green:",
- .brightness_set = ts5500_led_set,
- .brightness_get = ts5500_led_get,
-};
-
-static int ts5500_adc_convert(u8 ctrl)
-{
- u8 lsb, msb;
-
- /* Start conversion (ensure the 3 MSB are set to 0) */
- outb(ctrl & 0x1f, TS5500_ADC_CONV_INIT_LSB_ADDR);
-
- /*
- * The platform has CPLD logic driving the A/D converter.
- * The conversion must complete within 11 microseconds,
- * otherwise we have to re-initiate a conversion.
- */
- udelay(TS5500_ADC_CONV_DELAY);
- if (inb(TS5500_ADC_CONV_BUSY_ADDR) & TS5500_ADC_CONV_BUSY)
- return -EBUSY;
-
- /* Read the raw data */
- lsb = inb(TS5500_ADC_CONV_INIT_LSB_ADDR);
- msb = inb(TS5500_ADC_CONV_MSB_ADDR);
-
- return (msb << 8) | lsb;
-}
-
-static struct max197_platform_data ts5500_adc_pdata = {
- .convert = ts5500_adc_convert,
-};
-
-static struct platform_device ts5500_adc_pdev = {
- .name = "max197",
- .id = -1,
- .dev = {
- .platform_data = &ts5500_adc_pdata,
- },
-};
-
-static int __init ts5500_init(void)
-{
- struct platform_device *pdev;
- struct ts5500_sbc *sbc;
- int err;
-
- /*
- * There is no DMI available or PCI bridge subvendor info,
- * only the BIOS provides a 16-bit identification call.
- * It is safer to find a signature in the BIOS shadow RAM.
- */
- err = ts5500_check_signature();
- if (err)
- return err;
-
- pdev = platform_device_register_simple("ts5500", -1, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- sbc = devm_kzalloc(&pdev->dev, sizeof(struct ts5500_sbc), GFP_KERNEL);
- if (!sbc) {
- err = -ENOMEM;
- goto error;
- }
-
- err = ts5500_detect_config(sbc);
- if (err)
- goto error;
-
- platform_set_drvdata(pdev, sbc);
-
- err = sysfs_create_group(&pdev->dev.kobj, &ts5500_attr_group);
- if (err)
- goto error;
-
- if (sbc->id == TS5500_PRODUCT_CODE) {
- ts5500_dio1_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_dio1_pdev))
- dev_warn(&pdev->dev, "DIO1 block registration failed\n");
- ts5500_dio2_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_dio2_pdev))
- dev_warn(&pdev->dev, "DIO2 block registration failed\n");
- }
-
- if (led_classdev_register(&pdev->dev, &ts5500_led_cdev))
- dev_warn(&pdev->dev, "LED registration failed\n");
-
- if (sbc->adc) {
- ts5500_adc_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_adc_pdev))
- dev_warn(&pdev->dev, "ADC registration failed\n");
- }
-
- return 0;
-error:
- platform_device_unregister(pdev);
- return err;
-}
-device_initcall(ts5500_init);
--
2.39.5