Commit Graph
138 Commits
Author SHA1 Message Date
maoxiaochuan 8ccc1637b7 net: stmmac: dwmac-loongson: Set clk_csr_i to 100-150MHz
Current clk_csr_i setting of Loongson STMMAC (including LS7A1000/2000
and LS2K1000/2000/3000) are copy & paste from other drivers. In fact,
Loongson STMMAC use 125MHz clocks and need 62 freq division to within
2.5MHz, meeting most PHY MDC requirement. So fix by setting clk_csr_i
to 100-150MHz, otherwise some PHYs may link fail.

Cc: stable@vger.kernel.org
Fixes: 30bba69d7db40e7 ("stmmac: pci: Add dwmac support for Loongson")
Signed-off-by: Hongliang Wang <wanghongliang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://patch.msgid.link/20260203062901.2158236-1-chenhuacai@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:20 +08:00
maoxiaochuan b75aa49c40 rtc: loongson: Add Loongson-2K0300 support
The Loongson-2K0300's rtc hardware design is similar to that of the
Loongson-1B, but it does not support the alarm feature.

Introduce `LOONGSON_RTC_ALARM_WORKAROUND`, which indicates a chip that
does not support the alarm feature, and rewrite the related logic in
`loongson_rtc_alarm_setting()`.

Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://patch.msgid.link/abff68dda2fe6a6601a9e58b31e278d941297fce.1768616276.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:19 +08:00
Bibo Mao 9238506cb9 crypto: virtio: Replace package id with numa node id
With multiple virtio crypto devices supported with different NUMA
nodes, when crypto session is created, it will search virtio crypto
device with the same numa node of current CPU.

Here API topology_physical_package_id() is replaced with cpu_to_node()
since package id is physical concept, and one package id have multiple
memory numa id.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20260113030556.3522533-4-maobibo@loongson.cn>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:18 +08:00
Bibo Mao cf56dcee94 crypto: virtio: Remove duplicated virtqueue_kick in virtio_crypto_skcipher_crypt_req
With function virtio_crypto_skcipher_crypt_req(), there is already
virtqueue_kick() call with spinlock held in function
__virtio_crypto_skcipher_do_req(). Remove duplicated virtqueue_kick()
function call here.

Fixes: d79b5d0bbf2e ("crypto: virtio - support crypto engine framework")
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20260113030556.3522533-3-maobibo@loongson.cn>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:18 +08:00
Bibo Mao 181aef9b99 crypto: virtio: Add spinlock protection with virtqueue notification
When VM boots with one virtio-crypto PCI device and builtin backend,
run openssl benchmark command with multiple processes, such as
  openssl speed -evp aes-128-cbc -engine afalg  -seconds 10 -multi 32

openssl processes will hangup and there is error reported like this:
 virtio_crypto virtio0: dataq.0:id 3 is not a head!

It seems that the data virtqueue need protection when it is handled
for virtio done notification. If the spinlock protection is added
in virtcrypto_done_task(), openssl benchmark with multiple processes
works well.

Fixes: fed93fb62e05 ("crypto: virtio - Handle dataq logic with tasklet")
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20260113030556.3522533-2-maobibo@loongson.cn>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:18 +08:00
Brian Masney 4fd65e99a7 clk: loongson1: convert from divider_round_rate() to divider_determine_rate()
The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: bb40a2ef4fc9 ("clk: loongson1: convert from round_rate() to determine_rate()")
Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com> # on LS1B & LS1C
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:17 +08:00
tao89959 c8a87714ac loongson: watchdog: fix ping watchdog failed when watchdog close
Changelog: 修复loongson看门狗驱动当关闭时,无法喂狗的问题
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:17 +08:00
tao89959 8604389b03 drivers: watchdog: support setup watchdog timeout when close enable watchdog
Changelog: 看门狗驱动支持在关机调用看门狗时设置超时时间
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:17 +08:00
tao89959 7d6aacdf8d net: phy: yt8531h: fix pll enable setup bug
Changelog: 修复yt8531h的pll设置失败问题
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:16 +08:00
tao89959 42fcf753ac Revert "net: phy: motor yt8531 add soft reset func"
This reverts commit 9d4f7df5bb4f327c46c340436487c5ea335e48b1.

Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:15 +08:00
tao89959 bf325c3f96 mmc: loongson: support setup clk stable delay time
Changelog: 龙芯mmc驱动支持设置时钟稳定的延时时间
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:15 +08:00
tao89959 ccce94639e net: phy: motor yt8531 add soft reset func
Changelog: yt8531添加 soft reset 函数
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:15 +08:00
tao89959 379c54c559 rtc: sd2078: add sd2078 rtc driver
Changelog: 添加sd2078 rtc驱动支持
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:14 +08:00
tao89959 c08629e3b1 loongson: drivers: spi: fix spi bus freq error bug
Changelog: 修复loongson spi的总线频率错误的问题
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:13 +08:00
tao89959 d4fe24e70a loongson: 2k1000: pinctrl: fix compile warning
Changelog: NULL
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:12 +08:00
tao89959 a553b37120 loongson: 2k1000: 2k1000 pinctrl driver add new compatible
Changelog: 2k1000的引脚复用配置驱动添加新的compatible
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:12 +08:00
tao89959 f2dac8034e loongson: i2c: support multi bus clock generate mode
Changelog: 支持多种总线时钟生成模式
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:10 +08:00
tao89959 ddc84e010f loongson: i2c: support clock and bus freq from dts or acpi
Changelog: 龙芯i2c驱动支持输入时钟和总线时钟从dts或acpi获取
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:10 +08:00
tao89959 5b79993616 loongson: ls2kmci: disable redundant code about cd-gpio setup
Changelog: ls2kmci禁用多余的检测gpio的配置代码
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:09 +08:00
tao89959 530690a32b loongson: ls2kmci: delete multi debug info
Changelog: ls2kmci驱动删除重复调试信息
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:09 +08:00
tao89959 634f00fcb9 loongson: ls2kmci: fix deponds dma error option
Changelog: 修复ls2kmci依赖错误
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:09 +08:00
tao89959 05fd58fbf7 loongson: 2k1000: update pinmux config driver to support multi option
Changelog: 更新2k1000的配置库支持更多配置项
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-08-24 14:17:09 +08:00
Shuah Khan 7eaf0dccd9 wifi: mt76: Remove blank line after mt792x firmware version dmesg
An extra blank line gets printed after printing firmware version
because the build date is null terminated. Remove the "\n" from
dev_info() calls to print firmware version and build date to fix
the problem.

Reported-by: Mario Limonciello <superm1@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:30 +08:00
maoxiaochuan 979f243f95 serial: 8250: Add Loongson uart driver support
Add the driver for on-chip UART used on Loongson family chips.

The hardware is similar to NS16550A, but there are the following
differences:
 - Some chips (such as Loongson-2K2000) have added a fractional division
   register to obtain the required baud rate accurately, so the
   {get,set}_divisor callback is overridden.
 - Due to hardware defects, quirk handling is required for
   UART_MCR/UART_MSR.

Co-developed-by: Haowei Zheng <zhenghaowei@loongson.cn>
Signed-off-by: Haowei Zheng <zhenghaowei@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://patch.msgid.link/2c2a01a276b9250efea0c7aa190efecdfd6fdf5a.1760166651.git.zhoubinbin@loongson.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:28 +08:00
maoxiaochuan 1a6660cb88 watchdog: loongson1: Add Loongson-2k0300 watchdog support
According to the manual, the Loongson-2K0300 watchdog is similar to the
Loongson-1, except for some register offsets and inconsistent register
bit definitions. Separate definitions via driver_data suffice.

Co-developed-by: Xiaochuang Mao <maoxiaochuan@loongson.cn>
Signed-off-by: Xiaochuang Mao <maoxiaochuan@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:27 +08:00
Binbin Zhou 47a7647a11 watchdog: loongson1: Drop CONFIG_OF
The general recommendation is to not use of_match_ptr() or CONFIG_OF
ifdef.

Drop them.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:26 +08:00
Binbin Zhou 3bd4bac742 watchdog: loongson1: Simplify ls1x_wdt_probe code
Remove meaningless output to simplify ls1x_wdt_probe().

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:26 +08:00
Binbin Zhou 55caee080e watchdog: loongson1: Add missing MODULE_PARM_DESC
Add documentation for module_param so that they're visible with
modinfo command.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:26 +08:00
Russell King (Oracle) 146e6718ed net: stmmac: loongson1: use stmmac_get_phy_intf_sel()
Use stmmac_get_phy_intf_sel() to decode the PHY interface mode to the
phy_intf_sel value, validate the result and use that to set the
control register to select the operating mode for the DWMAC core.

Note that this will allow GMII as well as MII as the phy_intf_sel
value is the same for both.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1vIjTp-0000000DqtC-2DmI@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:26 +08:00
Russell King (Oracle) 33606d6243 net: stmmac: loongson1: use PHY_INTF_SEL_x directly
Use the PHY_INTF_SEL_xx values directly in ls1c_dwmac_syscon_init(),
converting them to the PHY_INTF_SELI bitfield when calling
regmap_update_bits().

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1vIjTk-0000000Dqt6-1gN9@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:25 +08:00
Russell King (Oracle) d93eeb43ce net: stmmac: loongson1: use PHY_INTF_SEL_x
Use PHY_INTF_SEL_x definitions for phy_intf_sel bitfield.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:25 +08:00
Xi Ruoyao 98f42a04de ACPICA: Work around bogus -Wstringop-overread warning since GCC 11
When ACPI_MISALIGNMENT_NOT_SUPPORTED is set, GCC can produce a bogus
-Wstringop-overread warning, see [1].

To me, it's very clear that we have a compiler bug here, thus just
disable the warning.

Fixes: a9d13433fe17 ("LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled")
Link: https://lore.kernel.org/all/899f2dec-e8b9-44f4-ab8d-001e160a2aed@roeck-us.net/
Link: https://github.com/acpica/acpica/commit/abf5b573
Link: https://gcc.gnu.org/PR122073 [1]
Co-developed-by: Saket Dumbre <saket.dumbre@intel.com>
Signed-off-by: Saket Dumbre <saket.dumbre@intel.com>
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Cc: All applicable <stable@vger.kernel.org>
[ rjw: Subject and changelog edits ]
Link: https://patch.msgid.link/20251021092825.822007-1-xry111@xry111.site
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:25 +08:00
Fedor Pchelkin 49af2d2900 clk: tegra: do not overallocate memory for bpmp clocks
struct tegra_bpmp::clocks is a pointer to a dynamically allocated array
of pointers to 'struct tegra_bpmp_clk'.

But the size of the allocated area is calculated like it is an array
containing actual 'struct tegra_bpmp_clk' objects - it's not true, there
are just pointers.

Found by Linux Verification Center (linuxtesting.org) with Svace static
analysis tool.

Fixes: 2db12b15c6f3 ("clk: tegra: Register clocks from root to leaf")
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:25 +08:00
Maxime Ripard 8d89e964d7 drm/loongson: Switch to drm_atomic_get_new_crtc_state()
The loongson atomic_check implementation uses the deprecated
drm_atomic_get_existing_crtc_state() helper.

This hook is called as part of the global atomic_check, thus before the
states are swapped. The existing state thus points to the new state, and
we can use drm_atomic_get_new_crtc_state() instead.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/20250930-drm-no-more-existing-state-v5-23-eeb9e1287907@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:25 +08:00
Nathan Chancellor f12c7219fa tpm: loongson: Add bufsiz parameter to tpm_loongson_send()
Commit 5c83b07df9c5 ("tpm: Add a driver for Loongson TPM device") has a
semantic conflict with commit 07d8004d6fb9 ("tpm: add bufsiz parameter
in the .send callback"), as the former change was developed against a
tree without the latter change. This results in a build error:

  drivers/char/tpm/tpm_loongson.c:48:17: error: initialization of 'int (*)(struct tpm_chip *, u8 *, size_t,  size_t)' {aka 'int (*)(struct tpm_chip *, unsigned char *, long unsigned int,  long unsigned int)'} from incompatible pointer type 'int (*)(struct tpm_chip *, u8 *, size_t)' {aka 'int (*)(struct tpm_chip *, unsigned char *, long unsigned int)'} [-Wincompatible-pointer-types]
     48 |         .send = tpm_loongson_send,
        |                 ^~~~~~~~~~~~~~~~~
  drivers/char/tpm/tpm_loongson.c:48:17: note: (near initialization for 'tpm_loongson_ops.send')
  drivers/char/tpm/tpm_loongson.c:31:12: note: 'tpm_loongson_send' declared here
     31 | static int tpm_loongson_send(struct tpm_chip *chip, u8 *buf, size_t count)
        |            ^~~~~~~~~~~~~~~~~

Add the expected bufsiz parameter to tpm_loongson_send() to resolve the
error.

Fixes: 5c83b07df9c5 ("tpm: Add a driver for Loongson TPM device")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:24 +08:00
Yao Zi 5edfaf2bc9 clk: loongson2: Add clock definitions for Loongson-2K0300 SoC
The clock controller of Loongson-2K0300 consists of three PLLs, requires
an 120MHz external reference clock to function, and generates clocks in
various frequencies for SoC peripherals.

Clock definitions for previous SoC generations could be reused for most
clock hardwares. There're two gates marked as critical, clk_node_gate
and clk_boot_gate, which supply the CPU cores and the system
configuration bus. Disabling them leads to a SoC hang.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:23 +08:00
Yao Zi 8604932697 clk: loongson2: Avoid hardcoding firmware name of the reference clock
Loongson-2K0300 requires a reference clock with a frequency different
from previous SoCs (120MHz v.s. 100MHz), thus hardcoding the firmware
name of the reference clock as ref_100m isn't a good idea.

This patch retrives the clock name of the reference clock dynamically
during probe, avoiding the hardcoded pdata structure and preparing for
support of future SoCs.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:23 +08:00
Yao Zi 5614463fa4 clk: loongson2: Allow zero divisors for dividers
LS2K0300 and LS2K0500 ship divider clocks which allows zero divisors,
in which case the divider acts the same as one is specified.

Let's pass CLK_DIVIDER_ALLOW_ZERO when registering divider clocks to
prepare for future introduction of these clocks.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:23 +08:00
Yao Zi 464f8732ba clk: loongson2: Support scale clocks with an alternative mode
LS2K0300 and LS2K1500 ship scale clocks with an alternative mode.
There's one mode bit in clock configuration register indicating the
operation mode.

When mode bit is unset, the scale clock acts the same as previous
generation of scale clocks. When it's set, a different equation for
calculating result frequency, Fout = Fin / (scale + 1), is used.

This patch adds frequency calculation support for the scale clock
variant. A helper macro, CLK_SCALE_MODE, is added to simplify
definitions.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:23 +08:00
Yao Zi 7c9ca55087 clk: loongson2: Allow specifying clock flags for gate clock
Some gate clocks need to be supplied with flags, e.g., it may be
required to specify CLK_IS_CRTICAL for CPU clocks.

Add a field to loongson2_clk_board_info for representing clock flags,
and specify it when registering gate clocks. A new helper macro,
CLK_GATE_FLAGS, is added to simplify definitions.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:23 +08:00
Russell King (Oracle) 53b419d524 net: stmmac: use phy_interface in stmmac_check_pcs_mode()
In the majority, if not all cases, mac_interface and phy_interface
are the same with the exception of some drivers that I have suggested
only use phy_interface and set mac_interface to PHY_INTERFACE_MODE_NA.

The only two that currently set mac_interface to PHY_INTERFACE_MODE_NA
are dwmac-loongson and dwmac-lpc18xx, neither of which use RGMII nor
SGMII.

In order to phase out the use of mac_interface, we need to have a path
for existing drivers so they can update to only using phy_interface
without causing regressions.

Therefore, in order to keep the "pcs" code working, we need to choose
the STMMAC integrated PCS mode based on phy_interface if mac_interface
is PHY_INTERFACE_MODE_NA.

This will allow more drivers to set mac_interface to
PHY_INTERFACE_MODE_NA without risking regressions.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1uytpG-00000006H29-1Ltk@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:13 +08:00
Mikko Rapeli dce10e22fe mmc: select REGMAP_MMIO with MMC_LOONGSON2
COMPILE_TEST with MMC_LOONGSON2 failed to link due to
undeclared dependency:

ERROR: modpost: "__devm_regmap_init_mmio_clk"
[drivers/mmc/host/loongson2-mmc.ko] undefined!

Fixes: 2115772014bd ("mmc: loongson2: Add Loongson-2K SD/SDIO controller driver")

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:13 +08:00
Huacai Chen 87158ec864 ACPICA: Allow to skip Global Lock initialization
Introduce acpi_gbl_use_global_lock, which allows to skip the Global Lock
initialization. This is useful for systems without Global Lock (such as
loong_arch), so as to avoid error messages during boot phase:

 ACPI Error: Could not enable global_lock event (20240827/evxfevnt-182)
 ACPI Error: No response from Global Lock hardware, disabling lock (20240827/evglock-59)

Link: https://github.com/acpica/acpica/commit/463cb0fe
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:13 +08:00
Bartosz Golaszewski 8feae54f72 gpio: loongson1: allow building the module with COMPILE_TEST enabled
Increase build coverage by allowing the module to be built with
COMPILE_TEST=y.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250910-gpio-mmio-gpio-conv-part4-v2-1-f3d1a4c57124@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:12 +08:00
Binbin Zhou bf3b61946c mtd: rawnand: loongson: Add Loongson-2K1000 NAND controller support
The Loongson-2K1000 NAND controller is also similar to the Loongson-1C.

It supports a maximum capacity of 16GB FLASH per chip with a maximum
page size of 8KB, and it supports up to 4 chip selects and 4 RDY
signals.

The key difference from the Loongson-2K0500 is that it requires explicit
configuration of the DMA control route. Typically, it is configured as
APBDMA0.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:12 +08:00
Binbin Zhou e1fc29b581 mtd: rawnand: loongson: Add Loongson-2K0500 NAND controller support
The Loongson-2K0500 NAND controller is similar to the Loongson-1C.

It supports a maximum capacity of 16GB FLASH per chip with a maximum
page size of 8KB, and it supports up to 4 chip selects and 4 RDY
signals.

Its DMA controller is defaulted to APBDMA0.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:12 +08:00
Binbin Zhou d821c06b3f mtd: rawnand: loongson: Add nand chip select support
The page address register describes the page address of the starting
address for NAND read/write/erase operations.

According to the manual, it consists of two parts:
	{chip select, page number}

The `chip select` is fixed at 2 bits, and the `page number` is
determined based on the actual capacity of the single-chip memory.
Therefore we need to determine the `chip select` bits base on the `page
number`.

For example, for a 1GB capacity chip (2K page size), it has 1M pages.
Thus, [19:0] is used to represent the page number, and [21:20]
represents the chip select.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:12 +08:00
Keguang Zhang 2cbbbd492c mtd: rawnand: loongson: Add 6-byte NAND ID reading support
Loongson-1C and Loongson-2K SoCs support NAND flash chips with 6-byte ID.
However, the current implementation only handles 5-byte ID which can lead
to incorrect chip detection.

Extend loongson_nand_read_id_type_exec() to support 6-byte NAND ID.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:11 +08:00
maoxiaochuan db59e06a9f mtd: rawnand: loongson1: Rename the prefix from ls1x to loongson
I am going to introduce the NAND controllers of the Loongson-2K series
CPUs, which are similar to Loongson-1.

As preparation, rename all prefixes from Loongson1-specific to
Loongson-generic.

No functional change intended.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:11 +08:00
Keguang Zhang a639ca8c57 mtd: rawnand: loongson1: Fix inconsistent refcounting in ls1x_nand_chip_init()
As reported by Dan,
commit d2d10ede04b1 ("mtd: rawnand: Add Loongson-1 NAND Controller
Driver"), leads to the following Smatch static checker warning:

drivers/mtd/nand/raw/loongson1-nand-controller.c:730 ls1x_nand_chip_init()
warn: inconsistent refcounting 'chip_np->kobj.kref.refcount.refs.counter':

Fix this issue by calling of_node_put() immediately after using chip_np.
In addition, remove all unnecessary of_node_put(chip_np) calls.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/aBR535RZZT-sa6QZ@stanley.mountain/
Fixes: d2d10ede04b1 ("mtd: rawnand: Add Loongson-1 NAND Controller Driver")
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
2026-02-04 16:41:11 +08:00