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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/jz4760-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 'drivers/clk/ingenic/jz4760-cgu.c')
-rw-r--r--drivers/clk/ingenic/jz4760-cgu.c446
1 files changed, 446 insertions, 0 deletions
diff --git a/drivers/clk/ingenic/jz4760-cgu.c b/drivers/clk/ingenic/jz4760-cgu.c
new file mode 100644
index 000000000..e407f00bd
--- /dev/null
+++ b/drivers/clk/ingenic/jz4760-cgu.c
@@ -0,0 +1,446 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * JZ4760 SoC CGU driver
+ * Copyright 2018, Paul Cercueil <paul@crapouillou.net>
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include <linux/clk.h>
+
+#include <dt-bindings/clock/ingenic,jz4760-cgu.h>
+
+#include "cgu.h"
+#include "pm.h"
+
+#define MHZ (1000 * 1000)
+
+/*
+ * CPM registers offset address definition
+ */
+#define CGU_REG_CPCCR 0x00
+#define CGU_REG_LCR 0x04
+#define CGU_REG_CPPCR0 0x10
+#define CGU_REG_CLKGR0 0x20
+#define CGU_REG_OPCR 0x24
+#define CGU_REG_CLKGR1 0x28
+#define CGU_REG_CPPCR1 0x30
+#define CGU_REG_USBPCR 0x3c
+#define CGU_REG_USBCDR 0x50
+#define CGU_REG_I2SCDR 0x60
+#define CGU_REG_LPCDR 0x64
+#define CGU_REG_MSCCDR 0x68
+#define CGU_REG_UHCCDR 0x6c
+#define CGU_REG_SSICDR 0x74
+#define CGU_REG_CIMCDR 0x7c
+#define CGU_REG_GPSCDR 0x80
+#define CGU_REG_PCMCDR 0x84
+#define CGU_REG_GPUCDR 0x88
+
+static const s8 pll_od_encoding[8] = {
+ 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3,
+};
+
+static const u8 jz4760_cgu_cpccr_div_table[] = {
+ 1, 2, 3, 4, 6, 8,
+};
+
+static const u8 jz4760_cgu_pll_half_div_table[] = {
+ 2, 1,
+};
+
+static void
+jz4760_cgu_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)
+{
+ unsigned int m, n, od, m_max = (1 << pll_info->m_bits) - 1;
+
+ /* The frequency after the N divider must be between 1 and 50 MHz. */
+ n = parent_rate / (1 * MHZ);
+
+ /* The N divider must be >= 2. */
+ n = clamp_val(n, 2, 1 << pll_info->n_bits);
+
+ rate /= MHZ;
+ parent_rate /= MHZ;
+
+ for (m = m_max; m >= m_max && n >= 2; n--) {
+ m = rate * n / parent_rate;
+ od = m & 1;
+ m <<= od;
+ }
+
+ *pm = m;
+ *pn = n + 1;
+ *pod = 1 << od;
+}
+
+static const struct ingenic_cgu_clk_info jz4760_cgu_clocks[] = {
+
+ /* External clocks */
+
+ [JZ4760_CLK_EXT] = { "ext", CGU_CLK_EXT },
+ [JZ4760_CLK_OSC32K] = { "osc32k", CGU_CLK_EXT },
+
+ /* PLLs */
+
+ [JZ4760_CLK_PLL0] = {
+ "pll0", CGU_CLK_PLL,
+ .parents = { JZ4760_CLK_EXT },
+ .pll = {
+ .reg = CGU_REG_CPPCR0,
+ .rate_multiplier = 1,
+ .m_shift = 23,
+ .m_bits = 8,
+ .m_offset = 0,
+ .n_shift = 18,
+ .n_bits = 4,
+ .n_offset = 0,
+ .od_shift = 16,
+ .od_bits = 2,
+ .od_max = 8,
+ .od_encoding = pll_od_encoding,
+ .bypass_reg = CGU_REG_CPPCR0,
+ .bypass_bit = 9,
+ .enable_bit = 8,
+ .stable_bit = 10,
+ .calc_m_n_od = jz4760_cgu_calc_m_n_od,
+ },
+ },
+
+ [JZ4760_CLK_PLL1] = {
+ /* TODO: PLL1 can depend on PLL0 */
+ "pll1", CGU_CLK_PLL,
+ .parents = { JZ4760_CLK_EXT },
+ .pll = {
+ .reg = CGU_REG_CPPCR1,
+ .rate_multiplier = 1,
+ .m_shift = 23,
+ .m_bits = 8,
+ .m_offset = 0,
+ .n_shift = 18,
+ .n_bits = 4,
+ .n_offset = 0,
+ .od_shift = 16,
+ .od_bits = 2,
+ .od_max = 8,
+ .od_encoding = pll_od_encoding,
+ .bypass_bit = -1,
+ .enable_bit = 7,
+ .stable_bit = 6,
+ .calc_m_n_od = jz4760_cgu_calc_m_n_od,
+ },
+ },
+
+ /* Main clocks */
+
+ [JZ4760_CLK_CCLK] = {
+ "cclk", CGU_CLK_DIV,
+ /*
+ * Disabling the CPU clock or any parent clocks will hang the
+ * system; mark it critical.
+ */
+ .flags = CLK_IS_CRITICAL,
+ .parents = { JZ4760_CLK_PLL0, },
+ .div = {
+ CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1, 0,
+ jz4760_cgu_cpccr_div_table,
+ },
+ },
+ [JZ4760_CLK_HCLK] = {
+ "hclk", CGU_CLK_DIV,
+ .parents = { JZ4760_CLK_PLL0, },
+ .div = {
+ CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1, 0,
+ jz4760_cgu_cpccr_div_table,
+ },
+ },
+ [JZ4760_CLK_SCLK] = {
+ "sclk", CGU_CLK_DIV,
+ .parents = { JZ4760_CLK_PLL0, },
+ .div = {
+ CGU_REG_CPCCR, 24, 1, 4, 22, -1, -1, 0,
+ jz4760_cgu_cpccr_div_table,
+ },
+ },
+ [JZ4760_CLK_H2CLK] = {
+ "h2clk", CGU_CLK_DIV,
+ .parents = { JZ4760_CLK_PLL0, },
+ .div = {
+ CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1, 0,
+ jz4760_cgu_cpccr_div_table,
+ },
+ },
+ [JZ4760_CLK_MCLK] = {
+ "mclk", CGU_CLK_DIV,
+ /*
+ * Disabling MCLK or its parents will render DRAM
+ * inaccessible; mark it critical.
+ */
+ .flags = CLK_IS_CRITICAL,
+ .parents = { JZ4760_CLK_PLL0, },
+ .div = {
+ CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1, 0,
+ jz4760_cgu_cpccr_div_table,
+ },
+ },
+ [JZ4760_CLK_PCLK] = {
+ "pclk", CGU_CLK_DIV,
+ .parents = { JZ4760_CLK_PLL0, },
+ .div = {
+ CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1, 0,
+ jz4760_cgu_cpccr_div_table,
+ },
+ },
+
+ /* Divided clocks */
+
+ [JZ4760_CLK_PLL0_HALF] = {
+ "pll0_half", CGU_CLK_DIV,
+ .parents = { JZ4760_CLK_PLL0 },
+ .div = {
+ CGU_REG_CPCCR, 21, 1, 1, 22, -1, -1, 0,
+ jz4760_cgu_pll_half_div_table,
+ },
+ },
+
+ /* Those divided clocks can connect to PLL0 or PLL1 */
+
+ [JZ4760_CLK_UHC] = {
+ "uhc", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1, },
+ .mux = { CGU_REG_UHCCDR, 31, 1 },
+ .div = { CGU_REG_UHCCDR, 0, 1, 4, -1, -1, -1 },
+ .gate = { CGU_REG_CLKGR0, 24 },
+ },
+ [JZ4760_CLK_GPU] = {
+ "gpu", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1, },
+ .mux = { CGU_REG_GPUCDR, 31, 1 },
+ .div = { CGU_REG_GPUCDR, 0, 1, 3, -1, -1, -1 },
+ .gate = { CGU_REG_CLKGR1, 9 },
+ },
+ [JZ4760_CLK_LPCLK_DIV] = {
+ "lpclk_div", CGU_CLK_DIV | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1, },
+ .mux = { CGU_REG_LPCDR, 29, 1 },
+ .div = { CGU_REG_LPCDR, 0, 1, 11, -1, -1, -1 },
+ },
+ [JZ4760_CLK_TVE] = {
+ "tve", CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_LPCLK_DIV, JZ4760_CLK_EXT, },
+ .mux = { CGU_REG_LPCDR, 31, 1 },
+ .gate = { CGU_REG_CLKGR0, 27 },
+ },
+ [JZ4760_CLK_LPCLK] = {
+ "lpclk", CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_LPCLK_DIV, JZ4760_CLK_TVE, },
+ .mux = { CGU_REG_LPCDR, 30, 1 },
+ .gate = { CGU_REG_CLKGR0, 28 },
+ },
+ [JZ4760_CLK_GPS] = {
+ "gps", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1, },
+ .mux = { CGU_REG_GPSCDR, 31, 1 },
+ .div = { CGU_REG_GPSCDR, 0, 1, 4, -1, -1, -1 },
+ .gate = { CGU_REG_CLKGR0, 22 },
+ },
+
+ /* Those divided clocks can connect to EXT, PLL0 or PLL1 */
+
+ [JZ4760_CLK_PCM] = {
+ "pcm", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_EXT, -1,
+ JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1 },
+ .mux = { CGU_REG_PCMCDR, 30, 2 },
+ .div = { CGU_REG_PCMCDR, 0, 1, 9, -1, -1, -1, BIT(0) },
+ .gate = { CGU_REG_CLKGR1, 8 },
+ },
+ [JZ4760_CLK_I2S] = {
+ "i2s", CGU_CLK_DIV | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_EXT, -1,
+ JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1 },
+ .mux = { CGU_REG_I2SCDR, 30, 2 },
+ .div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1, BIT(0) },
+ },
+ [JZ4760_CLK_OTG] = {
+ "usb", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_EXT, -1,
+ JZ4760_CLK_PLL0_HALF, JZ4760_CLK_PLL1 },
+ .mux = { CGU_REG_USBCDR, 30, 2 },
+ .div = { CGU_REG_USBCDR, 0, 1, 8, -1, -1, -1 },
+ .gate = { CGU_REG_CLKGR0, 2 },
+ },
+
+ /* Those divided clocks can connect to EXT or PLL0 */
+ [JZ4760_CLK_MMC_MUX] = {
+ "mmc_mux", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { JZ4760_CLK_EXT, JZ4760_CLK_PLL0_HALF, },
+ .mux = { CGU_REG_MSCCDR, 31, 1 },
+ .div = { CGU_REG_MSCCDR, 0, 1, 6, -1, -1, -1, BIT(0) },
+ },
+ [JZ4760_CLK_SSI_MUX] = {
+ "ssi_mux", CGU_CLK_DIV | CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_EXT, JZ4760_CLK_PLL0_HALF, },
+ .mux = { CGU_REG_SSICDR, 31, 1 },
+ .div = { CGU_REG_SSICDR, 0, 1, 6, -1, -1, -1, BIT(0) },
+ },
+
+ /* These divided clock can connect to PLL0 only */
+ [JZ4760_CLK_CIM] = {
+ "cim", CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_PLL0_HALF },
+ .div = { CGU_REG_CIMCDR, 0, 1, 8, -1, -1, -1 },
+ .gate = { CGU_REG_CLKGR0, 26 },
+ },
+
+ /* Gate-only clocks */
+
+ [JZ4760_CLK_SSI0] = {
+ "ssi0", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_SSI_MUX, },
+ .gate = { CGU_REG_CLKGR0, 4 },
+ },
+ [JZ4760_CLK_SSI1] = {
+ "ssi1", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_SSI_MUX, },
+ .gate = { CGU_REG_CLKGR0, 19 },
+ },
+ [JZ4760_CLK_SSI2] = {
+ "ssi2", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_SSI_MUX, },
+ .gate = { CGU_REG_CLKGR0, 20 },
+ },
+ [JZ4760_CLK_DMA] = {
+ "dma", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_H2CLK, },
+ .gate = { CGU_REG_CLKGR0, 21 },
+ },
+ [JZ4760_CLK_MDMA] = {
+ "mdma", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_HCLK, },
+ .gate = { CGU_REG_CLKGR0, 25 },
+ },
+ [JZ4760_CLK_BDMA] = {
+ "bdma", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_HCLK, },
+ .gate = { CGU_REG_CLKGR1, 0 },
+ },
+ [JZ4760_CLK_I2C0] = {
+ "i2c0", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 5 },
+ },
+ [JZ4760_CLK_I2C1] = {
+ "i2c1", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 6 },
+ },
+ [JZ4760_CLK_UART0] = {
+ "uart0", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 15 },
+ },
+ [JZ4760_CLK_UART1] = {
+ "uart1", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 16 },
+ },
+ [JZ4760_CLK_UART2] = {
+ "uart2", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 17 },
+ },
+ [JZ4760_CLK_UART3] = {
+ "uart3", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 18 },
+ },
+ [JZ4760_CLK_IPU] = {
+ "ipu", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_HCLK, },
+ .gate = { CGU_REG_CLKGR0, 29 },
+ },
+ [JZ4760_CLK_ADC] = {
+ "adc", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 14 },
+ },
+ [JZ4760_CLK_AIC] = {
+ "aic", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_EXT, },
+ .gate = { CGU_REG_CLKGR0, 8 },
+ },
+ [JZ4760_CLK_VPU] = {
+ "vpu", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_HCLK, },
+ .gate = { CGU_REG_LCR, 30, false, 150 },
+ },
+ [JZ4760_CLK_MMC0] = {
+ "mmc0", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_MMC_MUX, },
+ .gate = { CGU_REG_CLKGR0, 3 },
+ },
+ [JZ4760_CLK_MMC1] = {
+ "mmc1", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_MMC_MUX, },
+ .gate = { CGU_REG_CLKGR0, 11 },
+ },
+ [JZ4760_CLK_MMC2] = {
+ "mmc2", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_MMC_MUX, },
+ .gate = { CGU_REG_CLKGR0, 12 },
+ },
+ [JZ4760_CLK_UHC_PHY] = {
+ "uhc_phy", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_UHC, },
+ .gate = { CGU_REG_OPCR, 5 },
+ },
+ [JZ4760_CLK_OTG_PHY] = {
+ "usb_phy", CGU_CLK_GATE,
+ .parents = { JZ4760_CLK_OTG },
+ .gate = { CGU_REG_OPCR, 7, true, 50 },
+ },
+
+ /* Custom clocks */
+ [JZ4760_CLK_EXT512] = {
+ "ext/512", CGU_CLK_FIXDIV,
+ .parents = { JZ4760_CLK_EXT },
+ .fixdiv = { 512 },
+ },
+ [JZ4760_CLK_RTC] = {
+ "rtc", CGU_CLK_MUX,
+ .parents = { JZ4760_CLK_EXT512, JZ4760_CLK_OSC32K, },
+ .mux = { CGU_REG_OPCR, 2, 1},
+ },
+};
+
+static void __init jz4760_cgu_init(struct device_node *np)
+{
+ struct ingenic_cgu *cgu;
+ int retval;
+
+ cgu = ingenic_cgu_new(jz4760_cgu_clocks,
+ ARRAY_SIZE(jz4760_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__);
+
+ ingenic_cgu_register_syscore_ops(cgu);
+}
+
+/* We only probe via devicetree, no need for a platform driver */
+CLK_OF_DECLARE_DRIVER(jz4760_cgu, "ingenic,jz4760-cgu", jz4760_cgu_init);
+
+/* JZ4760B has some small differences, but we don't implement them. */
+CLK_OF_DECLARE_DRIVER(jz4760b_cgu, "ingenic,jz4760b-cgu", jz4760_cgu_init);