kernel/linux.git/arch/mips/ralink, branch v4.9.331

MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c

2021-06-03T06:23:33+00:00

[ Upstream commit fef532ea0cd871afab7d9a7b6e9da99ac2c24371 ] rt2880_wdt.c uses (well, attempts to use) rt_sysc_membase. However, when this watchdog driver is built as a loadable module, there is a build error since the rt_sysc_membase symbol is not exported. Export it to quell the build error. ERROR: modpost: "rt_sysc_membase" [drivers/watchdog/rt2880_wdt.ko] undefined! Fixes: 473cf939ff34 ("watchdog: add ralink watchdog driver") Signed-off-by: Randy Dunlap Cc: Guenter Roeck Cc: Wim Van Sebroeck Cc: John Crispin Cc: linux-mips@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Acked-by: Guenter Roeck Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin

MIPS: ralink: Select CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8

2019-02-12T18:44:58+00:00

[ Upstream commit 0b15394475e3bcaf35ca4bf22fc55d56df67224e ] Testing has shown, that when using mainline U-Boot on MT7688 based boards, the system may hang or crash while mounting the root-fs. The main issue here is that mainline U-Boot configures EBase to a value near the end of system memory. And with CONFIG_CPU_MIPSR2_IRQ_VI disabled, trap_init() will not allocate a new area to place the exception handler. The original value will be used and the handler will be copied to this location, which might already be used by some userspace application. The MT7688 supports VI - its config3 register is 0x00002420, so VInt (Bit 5) is set. But without setting CONFIG_CPU_MIPSR2_IRQ_VI this bit will not be evaluated to result in "cpu_has_vi" being set. This patch now selects CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8 which results trap_init() to allocate some memory for the exception handler. Please note that this issue was not seen with the Mediatek U-Boot version, as it does not touch EBase (stays at default of 0x8000.0000). This is strictly also not correct as the kernel (_text) resides here. Signed-off-by: Stefan Roese [paul.burton@mips.com: s/beeing/being/] Signed-off-by: Paul Burton Cc: John Crispin Cc: Daniel Schwierzeck Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Signed-off-by: Sasha Levin

MIPS: ralink: Fix mt7620 nd_sd pinmux

2018-12-08T12:05:06+00:00

commit 7d35baa4e9ec4b717bc0e58a39cdb6a1c50f5465 upstream. In case the nd_sd group is set to the sd-card function, Pins 45 + 46 are configured as GPIOs. If they are blocked by the sd function, they can't be used as GPIOs. Reported-by: Kristian Evensen Signed-off-by: Mathias Kresin Signed-off-by: Paul Burton Fixes: f576fb6a0700 ("MIPS: ralink: cleanup the soc specific pinmux data") Patchwork: https://patchwork.linux-mips.org/patch/21220/ Cc: John Crispin Cc: Ralf Baechle Cc: James Hogan Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org # v3.18+ Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Remove ralink_halt()

2018-03-28T16:39:18+00:00

commit 891731f6a5dbe508d12443175a7e166a2fba616a upstream. ralink_halt() does nothing that machine_halt() doesn't already do, so it adds no value. It actually causes incorrect behaviour due to the "unreachable()" at the end. This tells the compiler that the end of the function will never be reached, which isn't true. The compiler responds by not adding a 'return' instruction, so control simply moves on to whatever bytes come afterwards in memory. In my tested, that was the ralink_restart() function. This means that an attempt to 'halt' the machine would actually cause a reboot. So remove ralink_halt() so that a 'halt' really does halt. Fixes: c06e836ada59 ("MIPS: ralink: adds reset code") Signed-off-by: NeilBrown Cc: John Crispin Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Cc: # 3.9+ Patchwork: https://patchwork.linux-mips.org/patch/18851/ Signed-off-by: James Hogan Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Fix typo in mt7628 pinmux function

2017-11-30T08:39:02+00:00

commit 05a67cc258e75ac9758e6f13d26337b8be51162a upstream. There is a typo inside the pinmux setup code. The function is called refclk and not reclk. Fixes: 53263a1c6852 ("MIPS: ralink: add mt7628an support") Signed-off-by: Mathias Kresin Acked-by: John Crispin Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16047/ Signed-off-by: James Hogan Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Fix MT7628 pinmux

2017-11-30T08:39:02+00:00

commit 8ef4b43cd3794d63052d85898e42424fd3b14d24 upstream. According to the datasheet the REFCLK pin is shared with GPIO#37 and the PERST pin is shared with GPIO#36. Fixes: 53263a1c6852 ("MIPS: ralink: add mt7628an support") Signed-off-by: Mathias Kresin Acked-by: John Crispin Cc: Ralf Baechle Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16046/ Signed-off-by: James Hogan Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Fix incorrect assignment on ralink_soc

2017-10-08T08:26:03+00:00

[ Upstream commit 08d90c81b714482dceb5323d14f6617bcf55ee61 ] ralink_soc sould be assigned to RT3883_SOC, replace incorrect comparision with assignment. Signed-off-by: Colin Ian King Fixes: 418d29c87061 ("MIPS: ralink: Unify SoC id handling") Cc: John Crispin Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14903/ Signed-off-by: Ralf Baechle Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Fix a typo in the pinmux setup.

2017-10-08T08:26:03+00:00

[ Upstream commit 58181a117d353427127a2e7afc7cf1ab44759828 ] There is a typo inside the pinmux setup code. The function is really called utif and not util. This was recently discovered when people were trying to make the UTIF interface work. Signed-off-by: John Crispin Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14899/ Signed-off-by: Ralf Baechle Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Fix typos in rt3883 pinctrl

2017-04-12T10:41:14+00:00

commit 7c5a3d813050ee235817b0220dd8c42359a9efd8 upstream. There are two copy & paste errors in the definition of the 5GHz LNA and second ethernet pinmux. Fixes: f576fb6a0700 ("MIPS: ralink: cleanup the soc specific pinmux data") Signed-off-by: John Crispin Signed-off-by: Daniel Golle Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15328/ Signed-off-by: James Hogan Signed-off-by: Greg Kroah-Hartman

MIPS: ralink: Remove unused rt*_wdt_reset functions

2017-03-18T11:14:28+00:00

commit 886f9c69fc68f56ddea34d3de51ac1fc2ac8dfbc upstream. All pointers to these functions were removed, so now they produce warnings: arch/mips/ralink/rt305x.c:92:13: error: 'rt305x_wdt_reset' defined but not used [-Werror=unused-function] This removes the functions. If we need them again, the patch can be reverted later. Fixes: f576fb6a0700 ("MIPS: ralink: cleanup the soc specific pinmux data") Signed-off-by: Arnd Bergmann Cc: John Crispin Cc: Colin Ian King Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/15044/ Signed-off-by: Ralf Baechle Signed-off-by: Greg Kroah-Hartman