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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/clk/ingenic/x1000-cgu.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to '')
-rw-r--r--drivers/clk/ingenic/x1000-cgu.c564
1 files changed, 564 insertions, 0 deletions
diff --git a/drivers/clk/ingenic/x1000-cgu.c b/drivers/clk/ingenic/x1000-cgu.c
new file mode 100644
index 000000000..feb03eed4
--- /dev/null
+++ b/drivers/clk/ingenic/x1000-cgu.c
@@ -0,0 +1,564 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * X1000 SoC CGU driver
+ * Copyright (c) 2019 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/rational.h>
+
+#include <dt-bindings/clock/ingenic,x1000-cgu.h>
+
+#include "cgu.h"
+#include "pm.h"
+
+/* CGU register offsets */
+#define CGU_REG_CPCCR 0x00
+#define CGU_REG_APLL 0x10
+#define CGU_REG_MPLL 0x14
+#define CGU_REG_CLKGR 0x20
+#define CGU_REG_OPCR 0x24
+#define CGU_REG_DDRCDR 0x2c
+#define CGU_REG_USBPCR 0x3c
+#define CGU_REG_USBPCR1 0x48
+#define CGU_REG_USBCDR 0x50
+#define CGU_REG_MACCDR 0x54
+#define CGU_REG_I2SCDR 0x60
+#define CGU_REG_LPCDR 0x64
+#define CGU_REG_MSC0CDR 0x68
+#define CGU_REG_I2SCDR1 0x70
+#define CGU_REG_SSICDR 0x74
+#define CGU_REG_CIMCDR 0x7c
+#define CGU_REG_PCMCDR 0x84
+#define CGU_REG_MSC1CDR 0xa4
+#define CGU_REG_CMP_INTR 0xb0
+#define CGU_REG_CMP_INTRE 0xb4
+#define CGU_REG_DRCG 0xd0
+#define CGU_REG_CPCSR 0xd4
+#define CGU_REG_PCMCDR1 0xe0
+#define CGU_REG_MACPHYC 0xe8
+
+/* bits within the OPCR register */
+#define OPCR_SPENDN0 BIT(7)
+#define OPCR_SPENDN1 BIT(6)
+
+/* bits within the USBPCR register */
+#define USBPCR_SIDDQ BIT(21)
+#define USBPCR_OTG_DISABLE BIT(20)
+
+/* bits within the USBPCR1 register */
+#define USBPCR1_REFCLKSEL_SHIFT 26
+#define USBPCR1_REFCLKSEL_MASK (0x3 << USBPCR1_REFCLKSEL_SHIFT)
+#define USBPCR1_REFCLKSEL_CORE (0x2 << USBPCR1_REFCLKSEL_SHIFT)
+#define USBPCR1_REFCLKDIV_SHIFT 24
+#define USBPCR1_REFCLKDIV_MASK (0x3 << USBPCR1_REFCLKDIV_SHIFT)
+#define USBPCR1_REFCLKDIV_48 (0x2 << USBPCR1_REFCLKDIV_SHIFT)
+#define USBPCR1_REFCLKDIV_24 (0x1 << USBPCR1_REFCLKDIV_SHIFT)
+#define USBPCR1_REFCLKDIV_12 (0x0 << USBPCR1_REFCLKDIV_SHIFT)
+
+static struct ingenic_cgu *cgu;
+
+static unsigned long x1000_otg_phy_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ u32 usbpcr1;
+ unsigned refclk_div;
+
+ usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
+ refclk_div = usbpcr1 & USBPCR1_REFCLKDIV_MASK;
+
+ switch (refclk_div) {
+ case USBPCR1_REFCLKDIV_12:
+ return 12000000;
+
+ case USBPCR1_REFCLKDIV_24:
+ return 24000000;
+
+ case USBPCR1_REFCLKDIV_48:
+ return 48000000;
+ }
+
+ return parent_rate;
+}
+
+static long x1000_otg_phy_round_rate(struct clk_hw *hw, unsigned long req_rate,
+ unsigned long *parent_rate)
+{
+ if (req_rate < 18000000)
+ return 12000000;
+
+ if (req_rate < 36000000)
+ return 24000000;
+
+ return 48000000;
+}
+
+static int x1000_otg_phy_set_rate(struct clk_hw *hw, unsigned long req_rate,
+ unsigned long parent_rate)
+{
+ unsigned long flags;
+ u32 usbpcr1, div_bits;
+
+ switch (req_rate) {
+ case 12000000:
+ div_bits = USBPCR1_REFCLKDIV_12;
+ break;
+
+ case 24000000:
+ div_bits = USBPCR1_REFCLKDIV_24;
+ break;
+
+ case 48000000:
+ div_bits = USBPCR1_REFCLKDIV_48;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&cgu->lock, flags);
+
+ usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
+ usbpcr1 &= ~USBPCR1_REFCLKDIV_MASK;
+ usbpcr1 |= div_bits;
+ writel(usbpcr1, cgu->base + CGU_REG_USBPCR1);
+
+ spin_unlock_irqrestore(&cgu->lock, flags);
+ return 0;
+}
+
+static int x1000_usb_phy_enable(struct clk_hw *hw)
+{
+ void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
+ void __iomem *reg_usbpcr = cgu->base + CGU_REG_USBPCR;
+
+ writel(readl(reg_opcr) | OPCR_SPENDN0, reg_opcr);
+ writel(readl(reg_usbpcr) & ~USBPCR_OTG_DISABLE & ~USBPCR_SIDDQ, reg_usbpcr);
+ return 0;
+}
+
+static void x1000_usb_phy_disable(struct clk_hw *hw)
+{
+ void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
+ void __iomem *reg_usbpcr = cgu->base + CGU_REG_USBPCR;
+
+ writel(readl(reg_opcr) & ~OPCR_SPENDN0, reg_opcr);
+ writel(readl(reg_usbpcr) | USBPCR_OTG_DISABLE | USBPCR_SIDDQ, reg_usbpcr);
+}
+
+static int x1000_usb_phy_is_enabled(struct clk_hw *hw)
+{
+ void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
+ void __iomem *reg_usbpcr = cgu->base + CGU_REG_USBPCR;
+
+ return (readl(reg_opcr) & OPCR_SPENDN0) &&
+ !(readl(reg_usbpcr) & USBPCR_SIDDQ) &&
+ !(readl(reg_usbpcr) & USBPCR_OTG_DISABLE);
+}
+
+static const struct clk_ops x1000_otg_phy_ops = {
+ .recalc_rate = x1000_otg_phy_recalc_rate,
+ .round_rate = x1000_otg_phy_round_rate,
+ .set_rate = x1000_otg_phy_set_rate,
+
+ .enable = x1000_usb_phy_enable,
+ .disable = x1000_usb_phy_disable,
+ .is_enabled = x1000_usb_phy_is_enabled,
+};
+
+static void
+x1000_i2spll_calc_m_n_od(const struct ingenic_cgu_pll_info *pll_info,
+ unsigned long rate, unsigned long parent_rate,
+ unsigned int *pm, unsigned int *pn, unsigned int *pod)
+{
+ const unsigned long m_max = GENMASK(pll_info->m_bits - 1, 0);
+ const unsigned long n_max = GENMASK(pll_info->n_bits - 1, 0);
+ unsigned long m, n;
+
+ rational_best_approximation(rate, parent_rate, m_max, n_max, &m, &n);
+
+ /* n should not be less than 2*m */
+ if (n < 2 * m)
+ n = 2 * m;
+
+ *pm = m;
+ *pn = n;
+ *pod = 1;
+}
+
+static void
+x1000_i2spll_set_rate_hook(const struct ingenic_cgu_pll_info *pll_info,
+ unsigned long rate, unsigned long parent_rate)
+{
+ /*
+ * Writing 0 causes I2SCDR1.I2SDIV_D to be automatically recalculated
+ * based on the current value of I2SCDR.I2SDIV_N, which is needed for
+ * the divider to function correctly.
+ */
+ writel(0, cgu->base + CGU_REG_I2SCDR1);
+}
+
+static const s8 pll_od_encoding[8] = {
+ 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3,
+};
+
+static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = {
+
+ /* External clocks */
+
+ [X1000_CLK_EXCLK] = { "ext", CGU_CLK_EXT },
+ [X1000_CLK_RTCLK] = { "rtc", CGU_CLK_EXT },
+
+ /* PLLs */
+
+ [X1000_CLK_APLL] = {
+ "apll", CGU_CLK_PLL,
+ .parents = { X1000_CLK_EXCLK },
+ .pll = {
+ .reg = CGU_REG_APLL,
+ .rate_multiplier = 1,
+ .m_shift = 24,
+ .m_bits = 7,
+ .m_offset = 1,
+ .n_shift = 18,
+ .n_bits = 5,
+ .n_offset = 1,
+ .od_shift = 16,
+ .od_bits = 2,
+ .od_max = 8,
+ .od_encoding = pll_od_encoding,
+ .bypass_reg = CGU_REG_APLL,
+ .bypass_bit = 9,
+ .enable_bit = 8,
+ .stable_bit = 10,
+ },
+ },
+
+ [X1000_CLK_MPLL] = {
+ "mpll", CGU_CLK_PLL,
+ .parents = { X1000_CLK_EXCLK },
+ .pll = {
+ .reg = CGU_REG_MPLL,
+ .rate_multiplier = 1,
+ .m_shift = 24,
+ .m_bits = 7,
+ .m_offset = 1,
+ .n_shift = 18,
+ .n_bits = 5,
+ .n_offset = 1,
+ .od_shift = 16,
+ .od_bits = 2,
+ .od_max = 8,
+ .od_encoding = pll_od_encoding,
+ .bypass_reg = CGU_REG_MPLL,
+ .bypass_bit = 6,
+ .enable_bit = 7,
+ .stable_bit = 0,
+ },
+ },
+
+ /* Custom (SoC-specific) OTG PHY */
+
+ [X1000_CLK_OTGPHY] = {
+ "otg_phy", CGU_CLK_CUSTOM,
+ .parents = { -1, -1, X1000_CLK_EXCLK, -1 },
+ .custom = { &x1000_otg_phy_ops },
+ },
+
+ /* Muxes & dividers */
+
+ [X1000_CLK_SCLKA] = {
+ "sclk_a", CGU_CLK_MUX,
+ .parents = { -1, X1000_CLK_EXCLK, X1000_CLK_APLL, -1 },
+ .mux = { CGU_REG_CPCCR, 30, 2 },
+ },
+
+ [X1000_CLK_CPUMUX] = {
+ "cpu_mux", CGU_CLK_MUX,
+ .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_CPCCR, 28, 2 },
+ },
+
+ [X1000_CLK_CPU] = {
+ "cpu", CGU_CLK_DIV | CGU_CLK_GATE,
+ /*
+ * Disabling the CPU clock or any parent clocks will hang the
+ * system; mark it critical.
+ */
+ .flags = CLK_IS_CRITICAL,
+ .parents = { X1000_CLK_CPUMUX },
+ .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 },
+ .gate = { CGU_REG_CLKGR, 30 },
+ },
+
+ [X1000_CLK_L2CACHE] = {
+ "l2cache", CGU_CLK_DIV,
+ /*
+ * The L2 cache clock is critical if caches are enabled and
+ * disabling it or any parent clocks will hang the system.
+ */
+ .flags = CLK_IS_CRITICAL,
+ .parents = { X1000_CLK_CPUMUX },
+ .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 },
+ },
+
+ [X1000_CLK_AHB0] = {
+ "ahb0", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_CPCCR, 26, 2 },
+ .div = { CGU_REG_CPCCR, 8, 1, 4, 21, -1, -1 },
+ },
+
+ [X1000_CLK_AHB2PMUX] = {
+ "ahb2_apb_mux", CGU_CLK_MUX,
+ .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_CPCCR, 24, 2 },
+ },
+
+ [X1000_CLK_AHB2] = {
+ "ahb2", CGU_CLK_DIV,
+ .parents = { X1000_CLK_AHB2PMUX },
+ .div = { CGU_REG_CPCCR, 12, 1, 4, 20, -1, -1 },
+ },
+
+ [X1000_CLK_PCLK] = {
+ "pclk", CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X1000_CLK_AHB2PMUX },
+ .div = { CGU_REG_CPCCR, 16, 1, 4, 20, -1, -1 },
+ .gate = { CGU_REG_CLKGR, 28 },
+ },
+
+ [X1000_CLK_DDR] = {
+ "ddr", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ /*
+ * Disabling DDR clock or its parents will render DRAM
+ * inaccessible; mark it critical.
+ */
+ .flags = CLK_IS_CRITICAL,
+ .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_DDRCDR, 30, 2 },
+ .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR, 31 },
+ },
+
+ [X1000_CLK_MAC] = {
+ "mac", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL },
+ .mux = { CGU_REG_MACCDR, 31, 1 },
+ .div = { CGU_REG_MACCDR, 0, 1, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR, 25 },
+ },
+
+ [X1000_CLK_I2SPLLMUX] = {
+ "i2s_pll_mux", CGU_CLK_MUX,
+ .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL },
+ .mux = { CGU_REG_I2SCDR, 31, 1 },
+ },
+
+ [X1000_CLK_I2SPLL] = {
+ "i2s_pll", CGU_CLK_PLL,
+ .parents = { X1000_CLK_I2SPLLMUX },
+ .pll = {
+ .reg = CGU_REG_I2SCDR,
+ .rate_multiplier = 1,
+ .m_shift = 13,
+ .m_bits = 9,
+ .n_shift = 0,
+ .n_bits = 13,
+ .calc_m_n_od = x1000_i2spll_calc_m_n_od,
+ .set_rate_hook = x1000_i2spll_set_rate_hook,
+ },
+ },
+
+ [X1000_CLK_I2S] = {
+ "i2s", CGU_CLK_MUX,
+ .parents = { X1000_CLK_EXCLK, -1, -1, X1000_CLK_I2SPLL },
+ /*
+ * NOTE: the mux is at bit 30; bit 29 enables the M/N divider.
+ * Therefore, the divider is disabled when EXCLK is selected.
+ */
+ .mux = { CGU_REG_I2SCDR, 29, 2 },
+ },
+
+ [X1000_CLK_LCD] = {
+ "lcd", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL },
+ .mux = { CGU_REG_LPCDR, 31, 1 },
+ .div = { CGU_REG_LPCDR, 0, 1, 8, 28, 27, 26 },
+ .gate = { CGU_REG_CLKGR, 23 },
+ },
+
+ [X1000_CLK_MSCMUX] = {
+ "msc_mux", CGU_CLK_MUX,
+ .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL },
+ .mux = { CGU_REG_MSC0CDR, 31, 1 },
+ },
+
+ [X1000_CLK_MSC0] = {
+ "msc0", CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X1000_CLK_MSCMUX },
+ .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR, 4 },
+ },
+
+ [X1000_CLK_MSC1] = {
+ "msc1", CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X1000_CLK_MSCMUX, -1, -1, -1 },
+ .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR, 5 },
+ },
+
+ [X1000_CLK_OTG] = {
+ "otg", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { X1000_CLK_EXCLK, -1, X1000_CLK_APLL, X1000_CLK_MPLL },
+ .mux = { CGU_REG_USBCDR, 30, 2 },
+ .div = { CGU_REG_USBCDR, 0, 1, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR, 3 },
+ },
+
+ [X1000_CLK_SSIPLL] = {
+ "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL },
+ .mux = { CGU_REG_SSICDR, 31, 1 },
+ .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 },
+ },
+
+ [X1000_CLK_SSIPLL_DIV2] = {
+ "ssi_pll_div2", CGU_CLK_FIXDIV,
+ .parents = { X1000_CLK_SSIPLL },
+ .fixdiv = { 2 },
+ },
+
+ [X1000_CLK_SSIMUX] = {
+ "ssi_mux", CGU_CLK_MUX,
+ .parents = { X1000_CLK_EXCLK, X1000_CLK_SSIPLL_DIV2 },
+ .mux = { CGU_REG_SSICDR, 30, 1 },
+ },
+
+ [X1000_CLK_EXCLK_DIV512] = {
+ "exclk_div512", CGU_CLK_FIXDIV,
+ .parents = { X1000_CLK_EXCLK },
+ .fixdiv = { 512 },
+ },
+
+ [X1000_CLK_RTC] = {
+ "rtc_ercs", CGU_CLK_MUX | CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK_DIV512, X1000_CLK_RTCLK },
+ .mux = { CGU_REG_OPCR, 2, 1},
+ .gate = { CGU_REG_CLKGR, 27 },
+ },
+
+ /* Gate-only clocks */
+
+ [X1000_CLK_EMC] = {
+ "emc", CGU_CLK_GATE,
+ .parents = { X1000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR, 0 },
+ },
+
+ [X1000_CLK_EFUSE] = {
+ "efuse", CGU_CLK_GATE,
+ .parents = { X1000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR, 1 },
+ },
+
+ [X1000_CLK_SFC] = {
+ "sfc", CGU_CLK_GATE,
+ .parents = { X1000_CLK_SSIPLL },
+ .gate = { CGU_REG_CLKGR, 2 },
+ },
+
+ [X1000_CLK_I2C0] = {
+ "i2c0", CGU_CLK_GATE,
+ .parents = { X1000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR, 7 },
+ },
+
+ [X1000_CLK_I2C1] = {
+ "i2c1", CGU_CLK_GATE,
+ .parents = { X1000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR, 8 },
+ },
+
+ [X1000_CLK_I2C2] = {
+ "i2c2", CGU_CLK_GATE,
+ .parents = { X1000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR, 9 },
+ },
+
+ [X1000_CLK_AIC] = {
+ "aic", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR, 11 },
+ },
+
+ [X1000_CLK_UART0] = {
+ "uart0", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR, 14 },
+ },
+
+ [X1000_CLK_UART1] = {
+ "uart1", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK},
+ .gate = { CGU_REG_CLKGR, 15 },
+ },
+
+ [X1000_CLK_UART2] = {
+ "uart2", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR, 16 },
+ },
+
+ [X1000_CLK_TCU] = {
+ "tcu", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR, 18 },
+ },
+
+ [X1000_CLK_SSI] = {
+ "ssi", CGU_CLK_GATE,
+ .parents = { X1000_CLK_SSIMUX },
+ .gate = { CGU_REG_CLKGR, 19 },
+ },
+
+ [X1000_CLK_OST] = {
+ "ost", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR, 20 },
+ },
+
+ [X1000_CLK_PDMA] = {
+ "pdma", CGU_CLK_GATE,
+ .parents = { X1000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR, 21 },
+ },
+};
+
+static void __init x1000_cgu_init(struct device_node *np)
+{
+ int retval;
+
+ cgu = ingenic_cgu_new(x1000_cgu_clocks,
+ ARRAY_SIZE(x1000_cgu_clocks), np);
+ if (!cgu) {
+ pr_err("%s: failed to initialise CGU\n", __func__);
+ return;
+ }
+
+ retval = ingenic_cgu_register_clocks(cgu);
+ if (retval) {
+ pr_err("%s: failed to register CGU Clocks\n", __func__);
+ return;
+ }
+
+ ingenic_cgu_register_syscore_ops(cgu);
+}
+/*
+ * CGU has some children devices, this is useful for probing children devices
+ * in the case where the device node is compatible with "simple-mfd".
+ */
+CLK_OF_DECLARE_DRIVER(x1000_cgu, "ingenic,x1000-cgu", x1000_cgu_init);