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authorArnd Bergmann <arnd@arndb.de>2018-03-09 17:16:06 +0100
committerArnd Bergmann <arnd@arndb.de>2018-03-26 15:57:24 +0200
commite6bf3cc5850acb2ca9e53959059aaeff3c4e2e1f (patch)
tree69faeae4fe23862ce467001eb4078dbcfaa3234a /drivers/tty/hvc
parentb716d38c9b7c48e79ad94aa0b4aa749e7400a59d (diff)
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tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
The blackfin architecture is getting removed, so these drivers are not needed any more. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Aaron Wu <aaron.wu@analog.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/tty/hvc')
-rw-r--r--drivers/tty/hvc/Kconfig9
-rw-r--r--drivers/tty/hvc/Makefile1
-rw-r--r--drivers/tty/hvc/hvc_bfin_jtag.c104
3 files changed, 0 insertions, 114 deletions
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index fec457edad14..3bade5ad3d71 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -88,15 +88,6 @@ config HVC_DCC
driver. This console is used through a JTAG only on ARM. If you don't have
a JTAG then you probably don't want this option.
-config HVC_BFIN_JTAG
- bool "Blackfin JTAG console"
- depends on BLACKFIN
- select HVC_DRIVER
- help
- This console uses the Blackfin JTAG to create a console under the
- the HVC driver. If you don't have JTAG, then you probably don't
- want this option.
-
config HVCS
tristate "IBM Hypervisor Virtual Console Server support"
depends on PPC_PSERIES && HVC_CONSOLE
diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile
index 0b02ec7f1dfd..b82f9f68cd23 100644
--- a/drivers/tty/hvc/Makefile
+++ b/drivers/tty/hvc/Makefile
@@ -10,5 +10,4 @@ obj-$(CONFIG_HVC_IRQ) += hvc_irq.o
obj-$(CONFIG_HVC_XEN) += hvc_xen.o
obj-$(CONFIG_HVC_IUCV) += hvc_iucv.o
obj-$(CONFIG_HVC_UDBG) += hvc_udbg.o
-obj-$(CONFIG_HVC_BFIN_JTAG) += hvc_bfin_jtag.o
obj-$(CONFIG_HVCS) += hvcs.o
diff --git a/drivers/tty/hvc/hvc_bfin_jtag.c b/drivers/tty/hvc/hvc_bfin_jtag.c
deleted file mode 100644
index dd7cae4c195b..000000000000
--- a/drivers/tty/hvc/hvc_bfin_jtag.c
+++ /dev/null
@@ -1,104 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Console via Blackfin JTAG Communication
- *
- * Copyright 2008-2011 Analog Devices Inc.
- *
- * Enter bugs at http://blackfin.uclinux.org/
- */
-
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-
-#include "hvc_console.h"
-
-/* See the Debug/Emulation chapter in the HRM */
-#define EMUDOF 0x00000001 /* EMUDAT_OUT full & valid */
-#define EMUDIF 0x00000002 /* EMUDAT_IN full & valid */
-#define EMUDOOVF 0x00000004 /* EMUDAT_OUT overflow */
-#define EMUDIOVF 0x00000008 /* EMUDAT_IN overflow */
-
-/* Helper functions to glue the register API to simple C operations */
-static inline uint32_t bfin_write_emudat(uint32_t emudat)
-{
- __asm__ __volatile__("emudat = %0;" : : "d"(emudat));
- return emudat;
-}
-
-static inline uint32_t bfin_read_emudat(void)
-{
- uint32_t emudat;
- __asm__ __volatile__("%0 = emudat;" : "=d"(emudat));
- return emudat;
-}
-
-/* Send data to the host */
-static int hvc_bfin_put_chars(uint32_t vt, const char *buf, int count)
-{
- static uint32_t outbound_len;
- uint32_t emudat;
- int ret;
-
- if (bfin_read_DBGSTAT() & EMUDOF)
- return 0;
-
- if (!outbound_len) {
- outbound_len = count;
- bfin_write_emudat(outbound_len);
- return 0;
- }
-
- ret = min(outbound_len, (uint32_t)4);
- memcpy(&emudat, buf, ret);
- bfin_write_emudat(emudat);
- outbound_len -= ret;
-
- return ret;
-}
-
-/* Receive data from the host */
-static int hvc_bfin_get_chars(uint32_t vt, char *buf, int count)
-{
- static uint32_t inbound_len;
- uint32_t emudat;
- int ret;
-
- if (!(bfin_read_DBGSTAT() & EMUDIF))
- return 0;
- emudat = bfin_read_emudat();
-
- if (!inbound_len) {
- inbound_len = emudat;
- return 0;
- }
-
- ret = min(inbound_len, (uint32_t)4);
- memcpy(buf, &emudat, ret);
- inbound_len -= ret;
-
- return ret;
-}
-
-/* Glue the HVC layers to the Blackfin layers */
-static const struct hv_ops hvc_bfin_get_put_ops = {
- .get_chars = hvc_bfin_get_chars,
- .put_chars = hvc_bfin_put_chars,
-};
-
-static int __init hvc_bfin_console_init(void)
-{
- hvc_instantiate(0, 0, &hvc_bfin_get_put_ops);
- return 0;
-}
-console_initcall(hvc_bfin_console_init);
-
-static int __init hvc_bfin_init(void)
-{
- hvc_alloc(0, 0, &hvc_bfin_get_put_ops, 128);
- return 0;
-}
-device_initcall(hvc_bfin_init);