From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Ansuel Smith <ansuelsmth@gmail.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Rob Herring <robh@kernel.org>,
Stanimir Varbanov <svarbanov@mm-sol.com>
Subject: [PATCH 4.19 06/92] PCI: qcom: Define some PARF params needed for ipq8064 SoC
Date: Thu, 20 Aug 2020 11:20:51 +0200 [thread overview]
Message-ID: <20200820091537.825524967@linuxfoundation.org> (raw)
In-Reply-To: <20200820091537.490965042@linuxfoundation.org>
From: Ansuel Smith <ansuelsmth@gmail.com>
commit 5149901e9e6deca487c01cc434a3ac4125c7b00b upstream.
Set some specific value for Tx De-Emphasis, Tx Swing and Rx equalization
needed on some ipq8064 based device (Netgear R7800 for example). Without
this the system locks on kernel load.
Link: https://lore.kernel.org/r/20200615210608.21469-8-ansuelsmth@gmail.com
Fixes: 82a823833f4e ("PCI: qcom: Add Qualcomm PCIe controller driver")
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: stable@vger.kernel.org # v4.5+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/pci/controller/dwc/pcie-qcom.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -76,6 +76,18 @@
#define DBI_RO_WR_EN 1
#define PERST_DELAY_US 1000
+/* PARF registers */
+#define PCIE20_PARF_PCS_DEEMPH 0x34
+#define PCS_DEEMPH_TX_DEEMPH_GEN1(x) ((x) << 16)
+#define PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(x) ((x) << 8)
+#define PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(x) ((x) << 0)
+
+#define PCIE20_PARF_PCS_SWING 0x38
+#define PCS_SWING_TX_SWING_FULL(x) ((x) << 8)
+#define PCS_SWING_TX_SWING_LOW(x) ((x) << 0)
+
+#define PCIE20_PARF_CONFIG_BITS 0x50
+#define PHY_RX0_EQ(x) ((x) << 24)
#define PCIE20_v3_PARF_SLV_ADDR_SPACE_SIZE 0x358
#define SLV_ADDR_SPACE_SZ 0x10000000
@@ -275,6 +287,7 @@ static int qcom_pcie_init_2_1_0(struct q
struct qcom_pcie_resources_2_1_0 *res = &pcie->res.v2_1_0;
struct dw_pcie *pci = pcie->pci;
struct device *dev = pci->dev;
+ struct device_node *node = dev->of_node;
u32 val;
int ret;
@@ -319,6 +332,17 @@ static int qcom_pcie_init_2_1_0(struct q
val &= ~BIT(0);
writel(val, pcie->parf + PCIE20_PARF_PHY_CTRL);
+ if (of_device_is_compatible(node, "qcom,pcie-ipq8064")) {
+ writel(PCS_DEEMPH_TX_DEEMPH_GEN1(24) |
+ PCS_DEEMPH_TX_DEEMPH_GEN2_3_5DB(24) |
+ PCS_DEEMPH_TX_DEEMPH_GEN2_6DB(34),
+ pcie->parf + PCIE20_PARF_PCS_DEEMPH);
+ writel(PCS_SWING_TX_SWING_FULL(120) |
+ PCS_SWING_TX_SWING_LOW(120),
+ pcie->parf + PCIE20_PARF_PCS_SWING);
+ writel(PHY_RX0_EQ(4), pcie->parf + PCIE20_PARF_CONFIG_BITS);
+ }
+
/* enable external reference clock */
val = readl(pcie->parf + PCIE20_PARF_PHY_REFCLK);
val |= BIT(16);
next prev parent reply other threads:[~2020-08-20 12:27 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-20 9:20 [PATCH 4.19 00/92] 4.19.141-rc1 review Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 01/92] smb3: warn on confusing error scenario with sec=krb5 Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 02/92] genirq/affinity: Make affinity setting if activated opt-in Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 03/92] PCI: hotplug: ACPI: Fix context refcounting in acpiphp_grab_context() Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 04/92] PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 05/92] PCI: Add device even if driver attach failed Greg Kroah-Hartman
2020-08-20 9:20 ` Greg Kroah-Hartman [this message]
2020-08-20 9:20 ` [PATCH 4.19 07/92] PCI: qcom: Add support for tx term offset for rev 2.1.0 Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 08/92] PCI: Probe bridge window attributes once at enumeration-time Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 09/92] btrfs: free anon block device right after subvolume deletion Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 10/92] btrfs: dont allocate anonymous block device for user invisible roots Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 11/92] btrfs: ref-verify: fix memory leak in add_block_entry Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 12/92] btrfs: dont traverse into the seed devices in show_devname Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 13/92] btrfs: open device without device_list_mutex Greg Kroah-Hartman
2020-08-20 9:20 ` [PATCH 4.19 14/92] btrfs: fix messages after changing compression level by remount Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 15/92] btrfs: only search for left_info if there is no right_info in try_merge_free_space Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 16/92] btrfs: fix memory leaks after failure to lookup checksums during inode logging Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 17/92] btrfs: fix return value mixup in btrfs_get_extent Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 18/92] dt-bindings: iio: io-channel-mux: Fix compatible string in example code Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 19/92] iio: dac: ad5592r: fix unbalanced mutex unlocks in ad5592r_read_raw() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 20/92] xtensa: fix xtensa_pmu_setup prototype Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 21/92] cifs: Fix leak when handling lease break for cached root fid Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 22/92] powerpc: Allow 4224 bytes of stack expansion for the signal frame Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 23/92] powerpc: Fix circular dependency between percpu.h and mmu.h Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 24/92] media: vsp1: dl: Fix NULL pointer dereference on unbind Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 25/92] net: ethernet: stmmac: Disable hardware multicast filter Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 26/92] net: stmmac: dwmac1000: provide multicast filter fallback Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 27/92] net/compat: Add missing sock updates for SCM_RIGHTS Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 28/92] md/raid5: Fix Force reconstruct-write io stuck in degraded raid5 Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 29/92] bcache: allocate meta data pages as compound pages Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 30/92] bcache: fix overflow in offset_to_stripe() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 31/92] mac80211: fix misplaced while instead of if Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 32/92] driver core: Avoid binding drivers to dead devices Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 33/92] MIPS: CPU#0 is not hotpluggable Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 34/92] ext2: fix missing percpu_counter_inc Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 35/92] ocfs2: change slot number type s16 to u16 Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 36/92] mm/page_counter.c: fix protection usage propagation Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 37/92] ftrace: Setup correct FTRACE_FL_REGS flags for module Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 38/92] kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler Greg Kroah-Hartman
2020-09-28 20:02 ` Naresh Kamboju
2020-09-28 22:09 ` Steven Rostedt
2020-09-28 22:15 ` Steven Rostedt
2020-09-29 5:49 ` Masami Hiramatsu
2020-09-29 6:52 ` Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 39/92] tracing/hwlat: Honor the tracing_cpumask Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 40/92] tracing: Use trace_sched_process_free() instead of exit() for pid tracing Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 41/92] watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog_info.options Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 42/92] watchdog: f71808e_wdt: remove use of wrong watchdog_info option Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 43/92] watchdog: f71808e_wdt: clear watchdog timeout occurred flag Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 44/92] pseries: Fix 64 bit logical memory block panic Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 45/92] module: Correctly truncate sysfs sections output Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 46/92] perf intel-pt: Fix FUP packet state Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 47/92] remoteproc: qcom: q6v5: Update running state before requesting stop Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 48/92] drm/imx: imx-ldb: Disable both channels for split mode in enc->disable() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 49/92] mfd: arizona: Ensure 32k clock is put on driver unbind and error Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 50/92] RDMA/ipoib: Return void from ipoib_ib_dev_stop() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 51/92] RDMA/ipoib: Fix ABBA deadlock with ipoib_reap_ah() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 52/92] media: rockchip: rga: Introduce color fmt macros and refactor CSC mode logic Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 53/92] media: rockchip: rga: Only set output CSC mode for RGB input Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 54/92] USB: serial: ftdi_sio: make process-packet buffer unsigned Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 55/92] USB: serial: ftdi_sio: clean up receive processing Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 56/92] USB: serial: ftdi_sio: fix break and sysrq handling Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 57/92] mmc: renesas_sdhi_internal_dmac: clean up the code for dma complete Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 58/92] gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 59/92] dm rq: dont call blk_mq_queue_stopped() in dm_stop_queue() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 60/92] selftests/powerpc: ptrace-pkey: Rename variables to make it easier to follow code Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 61/92] selftests/powerpc: ptrace-pkey: Update the test to mark an invalid pkey correctly Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 62/92] selftests/powerpc: ptrace-pkey: Dont update expected UAMOR value Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 63/92] iommu/omap: Check for failure of a call to omap_iommu_dump_ctx Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 64/92] iommu/vt-d: Enforce PASID devTLB field mask Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 65/92] i2c: rcar: slave: only send STOP event when we have been addressed Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 66/92] clk: clk-atlas6: fix return value check in atlas6_clk_init() Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 67/92] pwm: bcm-iproc: handle clk_get_rate() return Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 68/92] tools build feature: Use CC and CXX from parent Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 69/92] i2c: rcar: avoid race when unregistering slave Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 70/92] openrisc: Fix oops caused when dumping stack Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 71/92] scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 72/92] watchdog: initialize device before misc_register Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 73/92] Input: sentelic - fix error return when fsp_reg_write fails Greg Kroah-Hartman
2020-08-20 9:21 ` [PATCH 4.19 74/92] drm/vmwgfx: Use correct vmw_legacy_display_unit pointer Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 75/92] drm/vmwgfx: Fix two list_for_each loop exit tests Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 76/92] net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 77/92] nfs: Fix getxattr kernel panic and memory overflow Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 78/92] fs/minix: set s_maxbytes correctly Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 79/92] fs/minix: fix block limit check for V1 filesystems Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 80/92] fs/minix: remove expected error message in block_to_path() Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 81/92] fs/ufs: avoid potential u32 multiplication overflow Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 82/92] test_kmod: avoid potential double free in trigger_config_run_type() Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 83/92] mfd: dln2: Run event handler loop under spinlock Greg Kroah-Hartman
2020-08-21 7:21 ` Pavel Machek
2020-08-21 9:06 ` Andy Shevchenko
2020-08-21 9:14 ` Greg Kroah-Hartman
2020-08-21 9:15 ` Greg Kroah-Hartman
2020-08-21 10:54 ` Andy Shevchenko
2020-08-21 11:21 ` Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 84/92] ALSA: echoaudio: Fix potential Oops in snd_echo_resume() Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 85/92] perf bench mem: Always memset source before memcpy Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 86/92] tools build feature: Quote CC and CXX for their arguments Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 87/92] sh: landisk: Add missing initialization of sh_io_port_base Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 88/92] khugepaged: retract_page_tables() remember to test exit Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 89/92] arm64: dts: marvell: espressobin: add ethernet alias Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 90/92] drm/radeon: fix fb_div check in ni_init_smc_spll_table() Greg Kroah-Hartman
2020-08-21 7:27 ` Pavel Machek
2020-08-21 7:37 ` Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 91/92] drm: Added orientation quirk for ASUS tablet model T103HAF Greg Kroah-Hartman
2020-08-20 9:22 ` [PATCH 4.19 92/92] drm/amdgpu: Fix bug where DPM is not enabled after hibernate and resume Greg Kroah-Hartman
2020-08-20 20:03 ` [PATCH 4.19 00/92] 4.19.141-rc1 review Guenter Roeck
2020-08-20 20:05 ` Guenter Roeck
2020-08-20 23:49 ` Shuah Khan
2020-08-21 7:09 ` Naresh Kamboju
2020-08-21 7:39 ` Pavel Machek
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