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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-20 22:22:07 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-20 22:22:07 +0300
commitfffad3e1b34aaced7724ef513dff0d8232ad8d80 (patch)
treefc59facad055fef25108eec0ab93c2a7d8bc3070 /arch/xtensa/platforms
parent1e75a9f34a5ed5902707fb74b468356c55142b71 (diff)
parent9da8320bb97768e35f2e64fa7642015271d672eb (diff)
downloadlinux-fffad3e1b34aaced7724ef513dff0d8232ad8d80.tar.xz
Merge tag 'xtensa-next-20160320' of git://github.com/czankel/xtensa-linux
Pull Xtensa updates from Chris Zankel: "Xtensa improvements for 4.6: - control whether perf IRQ is treated as NMI from Kconfig - implement ioremap for regions outside KIO segment - fix ISS serial port behaviour when EOF is reached - fix preemption in {clear,copy}_user_highpage - fix endianness issues for XTFPGA devices, big-endian cores are now fully functional - clean up debug infrastructure and add support for hardware breakpoints and watchpoints - add processor configurations for Three Core HiFi-2 MX and HiFi3 cpus" * tag 'xtensa-next-20160320' of git://github.com/czankel/xtensa-linux: xtensa: add test_kc705_hifi variant xtensa: add Three Core HiFi-2 MX Variant. xtensa: support hardware breakpoints/watchpoints xtensa: use context structure for debug exceptions xtensa: remove remaining non-functional KGDB bits xtensa: clear all DBREAKC registers on start xtensa: xtfpga: fix earlycon endianness xtensa: xtfpga: fix i2c controller register width and endianness xtensa: xtfpga: fix ethernet controller endianness xtensa: xtfpga: fix serial port register width and endianness xtensa: define CONFIG_CPU_{BIG,LITTLE}_ENDIAN xtensa: fix preemption in {clear,copy}_user_highpage xtensa: ISS: don't hang if stdin EOF is reached xtensa: support ioremap for memory outside KIO region xtensa: use XTENSA_INT_LEVEL macro in asm/timex.h xtensa: make fake NMI configurable
Diffstat (limited to 'arch/xtensa/platforms')
-rw-r--r--arch/xtensa/platforms/iss/console.c10
-rw-r--r--arch/xtensa/platforms/xtfpga/setup.c3
2 files changed, 8 insertions, 5 deletions
diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index c54505dcf4db..c68f1e6158aa 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -96,21 +96,23 @@ static void rs_poll(unsigned long priv)
{
struct tty_port *port = (struct tty_port *)priv;
int i = 0;
+ int rd = 1;
unsigned char c;
spin_lock(&timer_lock);
while (simc_poll(0)) {
- simc_read(0, &c, 1);
+ rd = simc_read(0, &c, 1);
+ if (rd <= 0)
+ break;
tty_insert_flip_char(port, c, TTY_NORMAL);
i++;
}
if (i)
tty_flip_buffer_push(port);
-
-
- mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
+ if (rd)
+ mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
spin_unlock(&timer_lock);
}
diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index e9f65f79cf2e..b509d1f55ed5 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -223,6 +223,7 @@ static struct ethoc_platform_data ethoc_pdata = {
*/
.hwaddr = { 0x00, 0x50, 0xc2, 0x13, 0x6f, 0 },
.phy_id = -1,
+ .big_endian = XCHAL_HAVE_BE,
};
static struct platform_device ethoc_device = {
@@ -283,7 +284,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
.irq = DUART16552_INTNUM,
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
UPF_IOREMAP,
- .iotype = UPIO_MEM32,
+ .iotype = XCHAL_HAVE_BE ? UPIO_MEM32BE : UPIO_MEM32,
.regshift = 2,
.uartclk = 0, /* set in xtavnet_init() */
},