openwrt/target/linux/generic/backport-6.6/896-02-v6.9-net-dsa-mv88e6xxx-add-Amethyst-specific-SMI-GPIO-fun.patch
John Audia b733b6acb5 kernel: bump 6.6 to 6.6.44
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.44

Removed upstreamed:
	rockchip/patches-6.6/044-v6.11-arm64-dts-rockchip-Add-sdmmc-related-properties-on-r.patch[1]
	rockchip/patches-6.6/045-v6.11-arm64-dts-rockchip-Add-pinctrl-for-UART0-to-rk3308-r.patch[2]
	rockchip/patches-6.6/046-v6.11-arm64-dts-rockchip-Add-mdio-and-ethernet-phy-nodes-t.patch[3]
	rockchip/patches-6.6/048-v6.11-arm64-dts-rockchip-Update-WIFi-BT-related-nodes-on-r.patch[4]
	rockchip/patches-6.6/310-PCI-dw-rockchip-Fix-initial-PERST-GPIO-value.patch[5]

Manually rebased:
	bcm27xx/patches-6.6/950-0526-mfd-Add-rp1-driver.patch
	ramips/patches-6.6/810-uvc-add-iPassion-iP2970-support.patch

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.44&id=96155dc8c99e76a0e58932ca5f88148a37af3617
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.44&id=30ee9e5ecc5fd6854a1690ab11e6e6b4851ac9ab
3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.44&id=0c4c1b7daf23bccf0da5b65b3cd5b32bfa5a5af4
4. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.44&id=a86a5685675834732789df202e73153db59d8dcc
5. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.44&id=a30211c6704899de0616ac0f97601122d899c86d

Build system: x86/64
Build-tested: x86/64/AMD Cezanne
Run-tested: x86/64/AMD Cezanne

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/16061
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-08-06 00:40:42 +02:00

93 lines
3.3 KiB
Diff

From e3ab3267a0bbedc37725bb845a332ec33b247263 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Tue, 27 Feb 2024 18:54:22 +0100
Subject: [PATCH 2/2] net: dsa: mv88e6xxx: add Amethyst specific SMI GPIO
function
The existing mv88e6390_g2_scratch_gpio_set_smi() cannot be used on the
88E6393X as it requires certain P0_MODE, it also checks the CPU mode
as it impacts the bit setting value.
This is all irrelevant for Amethyst (MV88E6191X/6193X/6393X) as only
the default value of the SMI_PHY Config bit is set to CPU_MGD bootstrap
pin value but it can be changed without restrictions so that GPIO pins
9 and 10 are used as SMI pins.
So, introduce Amethyst specific function and call that if the Amethyst
family wants to setup the external PHY.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/dsa/mv88e6xxx/chip.c | 5 +++-
drivers/net/dsa/mv88e6xxx/global2.h | 2 ++
drivers/net/dsa/mv88e6xxx/global2_scratch.c | 31 +++++++++++++++++++++
3 files changed, 37 insertions(+), 1 deletion(-)
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3669,7 +3669,10 @@ static int mv88e6xxx_mdio_register(struc
if (external) {
mv88e6xxx_reg_lock(chip);
- err = mv88e6390_g2_scratch_gpio_set_smi(chip, true);
+ if (chip->info->family == MV88E6XXX_FAMILY_6393)
+ err = mv88e6393x_g2_scratch_gpio_set_smi(chip, true);
+ else
+ err = mv88e6390_g2_scratch_gpio_set_smi(chip, true);
mv88e6xxx_reg_unlock(chip);
if (err)
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -380,6 +380,8 @@ extern const struct mv88e6xxx_gpio_ops m
int mv88e6390_g2_scratch_gpio_set_smi(struct mv88e6xxx_chip *chip,
bool external);
+int mv88e6393x_g2_scratch_gpio_set_smi(struct mv88e6xxx_chip *chip,
+ bool external);
int mv88e6352_g2_scratch_port_has_serdes(struct mv88e6xxx_chip *chip, int port);
int mv88e6xxx_g2_atu_stats_set(struct mv88e6xxx_chip *chip, u16 kind, u16 bin);
int mv88e6xxx_g2_atu_stats_get(struct mv88e6xxx_chip *chip, u16 *stats);
--- a/drivers/net/dsa/mv88e6xxx/global2_scratch.c
+++ b/drivers/net/dsa/mv88e6xxx/global2_scratch.c
@@ -291,6 +291,37 @@ int mv88e6390_g2_scratch_gpio_set_smi(st
}
/**
+ * mv88e6393x_g2_scratch_gpio_set_smi - set gpio muxing for external smi
+ * @chip: chip private data
+ * @external: set mux for external smi, or free for gpio usage
+ *
+ * MV88E6191X/6193X/6393X GPIO pins 9 and 10 can be configured as an
+ * external SMI interface or as regular GPIO-s.
+ *
+ * They however have a different register layout then the existing
+ * function.
+ */
+
+int mv88e6393x_g2_scratch_gpio_set_smi(struct mv88e6xxx_chip *chip,
+ bool external)
+{
+ int misc_cfg = MV88E6352_G2_SCRATCH_MISC_CFG;
+ int err;
+ u8 val;
+
+ err = mv88e6xxx_g2_scratch_read(chip, misc_cfg, &val);
+ if (err)
+ return err;
+
+ if (external)
+ val &= ~MV88E6352_G2_SCRATCH_MISC_CFG_NORMALSMI;
+ else
+ val |= MV88E6352_G2_SCRATCH_MISC_CFG_NORMALSMI;
+
+ return mv88e6xxx_g2_scratch_write(chip, misc_cfg, val);
+}
+
+/**
* mv88e6352_g2_scratch_port_has_serdes - indicate if a port can have a serdes
* @chip: chip private data
* @port: port number to check for serdes