aboutsummaryrefslogtreecommitdiff
path: root/drivers/clk/clk-bm1880.c
diff options
context:
space:
mode:
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/clk-bm1880.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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/clk-bm1880.c')
-rw-r--r--drivers/clk/clk-bm1880.c952
1 files changed, 952 insertions, 0 deletions
diff --git a/drivers/clk/clk-bm1880.c b/drivers/clk/clk-bm1880.c
new file mode 100644
index 000000000..fad78a222
--- /dev/null
+++ b/drivers/clk/clk-bm1880.c
@@ -0,0 +1,952 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Bitmain BM1880 SoC clock driver
+ *
+ * Copyright (c) 2019 Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <dt-bindings/clock/bm1880-clock.h>
+
+#define BM1880_CLK_MPLL_CTL 0x00
+#define BM1880_CLK_SPLL_CTL 0x04
+#define BM1880_CLK_FPLL_CTL 0x08
+#define BM1880_CLK_DDRPLL_CTL 0x0c
+
+#define BM1880_CLK_ENABLE0 0x00
+#define BM1880_CLK_ENABLE1 0x04
+#define BM1880_CLK_SELECT 0x20
+#define BM1880_CLK_DIV0 0x40
+#define BM1880_CLK_DIV1 0x44
+#define BM1880_CLK_DIV2 0x48
+#define BM1880_CLK_DIV3 0x4c
+#define BM1880_CLK_DIV4 0x50
+#define BM1880_CLK_DIV5 0x54
+#define BM1880_CLK_DIV6 0x58
+#define BM1880_CLK_DIV7 0x5c
+#define BM1880_CLK_DIV8 0x60
+#define BM1880_CLK_DIV9 0x64
+#define BM1880_CLK_DIV10 0x68
+#define BM1880_CLK_DIV11 0x6c
+#define BM1880_CLK_DIV12 0x70
+#define BM1880_CLK_DIV13 0x74
+#define BM1880_CLK_DIV14 0x78
+#define BM1880_CLK_DIV15 0x7c
+#define BM1880_CLK_DIV16 0x80
+#define BM1880_CLK_DIV17 0x84
+#define BM1880_CLK_DIV18 0x88
+#define BM1880_CLK_DIV19 0x8c
+#define BM1880_CLK_DIV20 0x90
+#define BM1880_CLK_DIV21 0x94
+#define BM1880_CLK_DIV22 0x98
+#define BM1880_CLK_DIV23 0x9c
+#define BM1880_CLK_DIV24 0xa0
+#define BM1880_CLK_DIV25 0xa4
+#define BM1880_CLK_DIV26 0xa8
+#define BM1880_CLK_DIV27 0xac
+#define BM1880_CLK_DIV28 0xb0
+
+#define to_bm1880_pll_clk(_hw) container_of(_hw, struct bm1880_pll_hw_clock, hw)
+#define to_bm1880_div_clk(_hw) container_of(_hw, struct bm1880_div_hw_clock, hw)
+
+static DEFINE_SPINLOCK(bm1880_clk_lock);
+
+struct bm1880_clock_data {
+ void __iomem *pll_base;
+ void __iomem *sys_base;
+ struct clk_hw_onecell_data hw_data;
+};
+
+struct bm1880_gate_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent;
+ u32 gate_reg;
+ s8 gate_shift;
+ unsigned long flags;
+};
+
+struct bm1880_mux_clock {
+ unsigned int id;
+ const char *name;
+ const char * const *parents;
+ s8 num_parents;
+ u32 reg;
+ s8 shift;
+ unsigned long flags;
+};
+
+struct bm1880_div_clock {
+ unsigned int id;
+ const char *name;
+ u32 reg;
+ u8 shift;
+ u8 width;
+ u32 initval;
+ const struct clk_div_table *table;
+ unsigned long flags;
+};
+
+struct bm1880_div_hw_clock {
+ struct bm1880_div_clock div;
+ void __iomem *base;
+ spinlock_t *lock;
+ struct clk_hw hw;
+ struct clk_init_data init;
+};
+
+struct bm1880_composite_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent;
+ const char * const *parents;
+ unsigned int num_parents;
+ unsigned long flags;
+
+ u32 gate_reg;
+ u32 mux_reg;
+ u32 div_reg;
+
+ s8 gate_shift;
+ s8 mux_shift;
+ s8 div_shift;
+ s8 div_width;
+ s16 div_initval;
+ const struct clk_div_table *table;
+};
+
+struct bm1880_pll_clock {
+ unsigned int id;
+ const char *name;
+ u32 reg;
+ unsigned long flags;
+};
+
+struct bm1880_pll_hw_clock {
+ struct bm1880_pll_clock pll;
+ void __iomem *base;
+ struct clk_hw hw;
+ struct clk_init_data init;
+};
+
+static const struct clk_ops bm1880_pll_ops;
+static const struct clk_ops bm1880_clk_div_ops;
+
+#define GATE_DIV(_id, _name, _parent, _gate_reg, _gate_shift, _div_reg, \
+ _div_shift, _div_width, _div_initval, _table, \
+ _flags) { \
+ .id = _id, \
+ .parent = _parent, \
+ .name = _name, \
+ .gate_reg = _gate_reg, \
+ .gate_shift = _gate_shift, \
+ .div_reg = _div_reg, \
+ .div_shift = _div_shift, \
+ .div_width = _div_width, \
+ .div_initval = _div_initval, \
+ .table = _table, \
+ .mux_shift = -1, \
+ .flags = _flags, \
+ }
+
+#define GATE_MUX(_id, _name, _parents, _gate_reg, _gate_shift, \
+ _mux_reg, _mux_shift, _flags) { \
+ .id = _id, \
+ .parents = _parents, \
+ .num_parents = ARRAY_SIZE(_parents), \
+ .name = _name, \
+ .gate_reg = _gate_reg, \
+ .gate_shift = _gate_shift, \
+ .div_shift = -1, \
+ .mux_reg = _mux_reg, \
+ .mux_shift = _mux_shift, \
+ .flags = _flags, \
+ }
+
+#define CLK_PLL(_id, _name, _parent, _reg, _flags) { \
+ .pll.id = _id, \
+ .pll.name = _name, \
+ .pll.reg = _reg, \
+ .hw.init = CLK_HW_INIT_PARENTS_DATA(_name, _parent, \
+ &bm1880_pll_ops, \
+ _flags), \
+ }
+
+#define CLK_DIV(_id, _name, _parent, _reg, _shift, _width, _initval, \
+ _table, _flags) { \
+ .div.id = _id, \
+ .div.name = _name, \
+ .div.reg = _reg, \
+ .div.shift = _shift, \
+ .div.width = _width, \
+ .div.initval = _initval, \
+ .div.table = _table, \
+ .hw.init = CLK_HW_INIT_HW(_name, _parent, \
+ &bm1880_clk_div_ops, \
+ _flags), \
+ }
+
+static struct clk_parent_data bm1880_pll_parent[] = {
+ { .fw_name = "osc", .name = "osc" },
+};
+
+/*
+ * All PLL clocks are marked as CRITICAL, hence they are very crucial
+ * for the functioning of the SoC
+ */
+static struct bm1880_pll_hw_clock bm1880_pll_clks[] = {
+ CLK_PLL(BM1880_CLK_MPLL, "clk_mpll", bm1880_pll_parent,
+ BM1880_CLK_MPLL_CTL, 0),
+ CLK_PLL(BM1880_CLK_SPLL, "clk_spll", bm1880_pll_parent,
+ BM1880_CLK_SPLL_CTL, 0),
+ CLK_PLL(BM1880_CLK_FPLL, "clk_fpll", bm1880_pll_parent,
+ BM1880_CLK_FPLL_CTL, 0),
+ CLK_PLL(BM1880_CLK_DDRPLL, "clk_ddrpll", bm1880_pll_parent,
+ BM1880_CLK_DDRPLL_CTL, 0),
+};
+
+/*
+ * Clocks marked as CRITICAL are needed for the proper functioning
+ * of the SoC.
+ */
+static const struct bm1880_gate_clock bm1880_gate_clks[] = {
+ { BM1880_CLK_AHB_ROM, "clk_ahb_rom", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 2, 0 },
+ { BM1880_CLK_AXI_SRAM, "clk_axi_sram", "clk_axi1",
+ BM1880_CLK_ENABLE0, 3, 0 },
+ /*
+ * Since this clock is sourcing the DDR memory, let's mark it as
+ * critical to avoid gating.
+ */
+ { BM1880_CLK_DDR_AXI, "clk_ddr_axi", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 4, CLK_IS_CRITICAL },
+ { BM1880_CLK_APB_EFUSE, "clk_apb_efuse", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 6, 0 },
+ { BM1880_CLK_AXI5_EMMC, "clk_axi5_emmc", "clk_axi5",
+ BM1880_CLK_ENABLE0, 7, 0 },
+ { BM1880_CLK_AXI5_SD, "clk_axi5_sd", "clk_axi5",
+ BM1880_CLK_ENABLE0, 10, 0 },
+ { BM1880_CLK_AXI4_ETH0, "clk_axi4_eth0", "clk_axi4",
+ BM1880_CLK_ENABLE0, 14, 0 },
+ { BM1880_CLK_AXI4_ETH1, "clk_axi4_eth1", "clk_axi4",
+ BM1880_CLK_ENABLE0, 16, 0 },
+ { BM1880_CLK_AXI1_GDMA, "clk_axi1_gdma", "clk_axi1",
+ BM1880_CLK_ENABLE0, 17, 0 },
+ /* Don't gate GPIO clocks as it is not owned by the GPIO driver */
+ { BM1880_CLK_APB_GPIO, "clk_apb_gpio", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 18, CLK_IGNORE_UNUSED },
+ { BM1880_CLK_APB_GPIO_INTR, "clk_apb_gpio_intr", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 19, CLK_IGNORE_UNUSED },
+ { BM1880_CLK_AXI1_MINER, "clk_axi1_miner", "clk_axi1",
+ BM1880_CLK_ENABLE0, 21, 0 },
+ { BM1880_CLK_AHB_SF, "clk_ahb_sf", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 22, 0 },
+ /*
+ * Not sure which module this clock is sourcing but gating this clock
+ * prevents the system from booting. So, let's mark it as critical.
+ */
+ { BM1880_CLK_SDMA_AXI, "clk_sdma_axi", "clk_axi5",
+ BM1880_CLK_ENABLE0, 23, CLK_IS_CRITICAL },
+ { BM1880_CLK_APB_I2C, "clk_apb_i2c", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 25, 0 },
+ { BM1880_CLK_APB_WDT, "clk_apb_wdt", "clk_mux_axi6",
+ BM1880_CLK_ENABLE0, 26, 0 },
+ { BM1880_CLK_APB_JPEG, "clk_apb_jpeg", "clk_axi6",
+ BM1880_CLK_ENABLE0, 27, 0 },
+ { BM1880_CLK_AXI5_NF, "clk_axi5_nf", "clk_axi5",
+ BM1880_CLK_ENABLE0, 29, 0 },
+ { BM1880_CLK_APB_NF, "clk_apb_nf", "clk_axi6",
+ BM1880_CLK_ENABLE0, 30, 0 },
+ { BM1880_CLK_APB_PWM, "clk_apb_pwm", "clk_mux_axi6",
+ BM1880_CLK_ENABLE1, 0, 0 },
+ { BM1880_CLK_RV, "clk_rv", "clk_mux_rv",
+ BM1880_CLK_ENABLE1, 1, 0 },
+ { BM1880_CLK_APB_SPI, "clk_apb_spi", "clk_mux_axi6",
+ BM1880_CLK_ENABLE1, 2, 0 },
+ { BM1880_CLK_UART_500M, "clk_uart_500m", "clk_div_uart_500m",
+ BM1880_CLK_ENABLE1, 4, 0 },
+ { BM1880_CLK_APB_UART, "clk_apb_uart", "clk_axi6",
+ BM1880_CLK_ENABLE1, 5, 0 },
+ { BM1880_CLK_APB_I2S, "clk_apb_i2s", "clk_axi6",
+ BM1880_CLK_ENABLE1, 6, 0 },
+ { BM1880_CLK_AXI4_USB, "clk_axi4_usb", "clk_axi4",
+ BM1880_CLK_ENABLE1, 7, 0 },
+ { BM1880_CLK_APB_USB, "clk_apb_usb", "clk_axi6",
+ BM1880_CLK_ENABLE1, 8, 0 },
+ { BM1880_CLK_12M_USB, "clk_12m_usb", "clk_div_12m_usb",
+ BM1880_CLK_ENABLE1, 11, 0 },
+ { BM1880_CLK_APB_VIDEO, "clk_apb_video", "clk_axi6",
+ BM1880_CLK_ENABLE1, 12, 0 },
+ { BM1880_CLK_APB_VPP, "clk_apb_vpp", "clk_axi6",
+ BM1880_CLK_ENABLE1, 15, 0 },
+ { BM1880_CLK_AXI6, "clk_axi6", "clk_mux_axi6",
+ BM1880_CLK_ENABLE1, 21, 0 },
+};
+
+static const char * const clk_a53_parents[] = { "clk_spll", "clk_mpll" };
+static const char * const clk_rv_parents[] = { "clk_div_1_rv", "clk_div_0_rv" };
+static const char * const clk_axi1_parents[] = { "clk_div_1_axi1", "clk_div_0_axi1" };
+static const char * const clk_axi6_parents[] = { "clk_div_1_axi6", "clk_div_0_axi6" };
+
+static const struct bm1880_mux_clock bm1880_mux_clks[] = {
+ { BM1880_CLK_MUX_RV, "clk_mux_rv", clk_rv_parents, 2,
+ BM1880_CLK_SELECT, 1, 0 },
+ { BM1880_CLK_MUX_AXI6, "clk_mux_axi6", clk_axi6_parents, 2,
+ BM1880_CLK_SELECT, 3, 0 },
+};
+
+static const struct clk_div_table bm1880_div_table_0[] = {
+ { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
+ { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
+ { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
+ { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 },
+ { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 },
+ { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 },
+ { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 },
+ { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 },
+ { 0, 0 }
+};
+
+static const struct clk_div_table bm1880_div_table_1[] = {
+ { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
+ { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
+ { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
+ { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 },
+ { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 },
+ { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 },
+ { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 },
+ { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 },
+ { 127, 128 }, { 0, 0 }
+};
+
+static const struct clk_div_table bm1880_div_table_2[] = {
+ { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
+ { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
+ { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
+ { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 },
+ { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 },
+ { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 },
+ { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 },
+ { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 },
+ { 127, 128 }, { 255, 256 }, { 0, 0 }
+};
+
+static const struct clk_div_table bm1880_div_table_3[] = {
+ { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
+ { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
+ { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
+ { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 },
+ { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 },
+ { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 },
+ { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 },
+ { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 },
+ { 127, 128 }, { 255, 256 }, { 511, 512 }, { 0, 0 }
+};
+
+static const struct clk_div_table bm1880_div_table_4[] = {
+ { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
+ { 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
+ { 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
+ { 12, 13 }, { 13, 14 }, { 14, 15 }, { 15, 16 },
+ { 16, 17 }, { 17, 18 }, { 18, 19 }, { 19, 20 },
+ { 20, 21 }, { 21, 22 }, { 22, 23 }, { 23, 24 },
+ { 24, 25 }, { 25, 26 }, { 26, 27 }, { 27, 28 },
+ { 28, 29 }, { 29, 30 }, { 30, 31 }, { 31, 32 },
+ { 127, 128 }, { 255, 256 }, { 511, 512 }, { 65535, 65536 },
+ { 0, 0 }
+};
+
+/*
+ * Clocks marked as CRITICAL are needed for the proper functioning
+ * of the SoC.
+ */
+static struct bm1880_div_hw_clock bm1880_div_clks[] = {
+ CLK_DIV(BM1880_CLK_DIV_0_RV, "clk_div_0_rv", &bm1880_pll_clks[1].hw,
+ BM1880_CLK_DIV12, 16, 5, 1, bm1880_div_table_0, 0),
+ CLK_DIV(BM1880_CLK_DIV_1_RV, "clk_div_1_rv", &bm1880_pll_clks[2].hw,
+ BM1880_CLK_DIV13, 16, 5, 1, bm1880_div_table_0, 0),
+ CLK_DIV(BM1880_CLK_DIV_UART_500M, "clk_div_uart_500m", &bm1880_pll_clks[2].hw,
+ BM1880_CLK_DIV15, 16, 7, 3, bm1880_div_table_1, 0),
+ CLK_DIV(BM1880_CLK_DIV_0_AXI1, "clk_div_0_axi1", &bm1880_pll_clks[0].hw,
+ BM1880_CLK_DIV21, 16, 5, 2, bm1880_div_table_0,
+ 0),
+ CLK_DIV(BM1880_CLK_DIV_1_AXI1, "clk_div_1_axi1", &bm1880_pll_clks[2].hw,
+ BM1880_CLK_DIV22, 16, 5, 3, bm1880_div_table_0,
+ 0),
+ CLK_DIV(BM1880_CLK_DIV_0_AXI6, "clk_div_0_axi6", &bm1880_pll_clks[2].hw,
+ BM1880_CLK_DIV27, 16, 5, 15, bm1880_div_table_0,
+ 0),
+ CLK_DIV(BM1880_CLK_DIV_1_AXI6, "clk_div_1_axi6", &bm1880_pll_clks[0].hw,
+ BM1880_CLK_DIV28, 16, 5, 11, bm1880_div_table_0,
+ 0),
+ CLK_DIV(BM1880_CLK_DIV_12M_USB, "clk_div_12m_usb", &bm1880_pll_clks[2].hw,
+ BM1880_CLK_DIV18, 16, 7, 125, bm1880_div_table_1, 0),
+};
+
+/*
+ * Clocks marked as CRITICAL are all needed for the proper functioning
+ * of the SoC.
+ */
+static struct bm1880_composite_clock bm1880_composite_clks[] = {
+ /*
+ * Since clk_a53 and clk_50m_a53 clocks are sourcing the CPU core,
+ * let's mark them as critical to avoid gating.
+ */
+ GATE_MUX(BM1880_CLK_A53, "clk_a53", clk_a53_parents,
+ BM1880_CLK_ENABLE0, 0, BM1880_CLK_SELECT, 0,
+ CLK_IS_CRITICAL),
+ GATE_DIV(BM1880_CLK_50M_A53, "clk_50m_a53", "clk_fpll",
+ BM1880_CLK_ENABLE0, 1, BM1880_CLK_DIV0, 16, 5, 30,
+ bm1880_div_table_0, CLK_IS_CRITICAL),
+ GATE_DIV(BM1880_CLK_EFUSE, "clk_efuse", "clk_fpll",
+ BM1880_CLK_ENABLE0, 5, BM1880_CLK_DIV1, 16, 7, 60,
+ bm1880_div_table_1, 0),
+ GATE_DIV(BM1880_CLK_EMMC, "clk_emmc", "clk_fpll",
+ BM1880_CLK_ENABLE0, 8, BM1880_CLK_DIV2, 16, 5, 15,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_100K_EMMC, "clk_100k_emmc", "clk_div_12m_usb",
+ BM1880_CLK_ENABLE0, 9, BM1880_CLK_DIV3, 16, 8, 120,
+ bm1880_div_table_2, 0),
+ GATE_DIV(BM1880_CLK_SD, "clk_sd", "clk_fpll",
+ BM1880_CLK_ENABLE0, 11, BM1880_CLK_DIV4, 16, 5, 15,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_100K_SD, "clk_100k_sd", "clk_div_12m_usb",
+ BM1880_CLK_ENABLE0, 12, BM1880_CLK_DIV5, 16, 8, 120,
+ bm1880_div_table_2, 0),
+ GATE_DIV(BM1880_CLK_500M_ETH0, "clk_500m_eth0", "clk_fpll",
+ BM1880_CLK_ENABLE0, 13, BM1880_CLK_DIV6, 16, 5, 3,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_500M_ETH1, "clk_500m_eth1", "clk_fpll",
+ BM1880_CLK_ENABLE0, 15, BM1880_CLK_DIV7, 16, 5, 3,
+ bm1880_div_table_0, 0),
+ /* Don't gate GPIO clocks as it is not owned by the GPIO driver */
+ GATE_DIV(BM1880_CLK_GPIO_DB, "clk_gpio_db", "clk_div_12m_usb",
+ BM1880_CLK_ENABLE0, 20, BM1880_CLK_DIV8, 16, 16, 120,
+ bm1880_div_table_4, CLK_IGNORE_UNUSED),
+ GATE_DIV(BM1880_CLK_SDMA_AUD, "clk_sdma_aud", "clk_fpll",
+ BM1880_CLK_ENABLE0, 24, BM1880_CLK_DIV9, 16, 7, 61,
+ bm1880_div_table_1, 0),
+ GATE_DIV(BM1880_CLK_JPEG_AXI, "clk_jpeg_axi", "clk_fpll",
+ BM1880_CLK_ENABLE0, 28, BM1880_CLK_DIV10, 16, 5, 4,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_NF, "clk_nf", "clk_fpll",
+ BM1880_CLK_ENABLE0, 31, BM1880_CLK_DIV11, 16, 5, 30,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_TPU_AXI, "clk_tpu_axi", "clk_spll",
+ BM1880_CLK_ENABLE1, 3, BM1880_CLK_DIV14, 16, 5, 1,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_125M_USB, "clk_125m_usb", "clk_fpll",
+ BM1880_CLK_ENABLE1, 9, BM1880_CLK_DIV16, 16, 5, 12,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_33K_USB, "clk_33k_usb", "clk_div_12m_usb",
+ BM1880_CLK_ENABLE1, 10, BM1880_CLK_DIV17, 16, 9, 363,
+ bm1880_div_table_3, 0),
+ GATE_DIV(BM1880_CLK_VIDEO_AXI, "clk_video_axi", "clk_fpll",
+ BM1880_CLK_ENABLE1, 13, BM1880_CLK_DIV19, 16, 5, 4,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_VPP_AXI, "clk_vpp_axi", "clk_fpll",
+ BM1880_CLK_ENABLE1, 14, BM1880_CLK_DIV20, 16, 5, 4,
+ bm1880_div_table_0, 0),
+ GATE_MUX(BM1880_CLK_AXI1, "clk_axi1", clk_axi1_parents,
+ BM1880_CLK_ENABLE1, 15, BM1880_CLK_SELECT, 2, 0),
+ GATE_DIV(BM1880_CLK_AXI2, "clk_axi2", "clk_fpll",
+ BM1880_CLK_ENABLE1, 17, BM1880_CLK_DIV23, 16, 5, 3,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_AXI3, "clk_axi3", "clk_mux_rv",
+ BM1880_CLK_ENABLE1, 18, BM1880_CLK_DIV24, 16, 5, 2,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_AXI4, "clk_axi4", "clk_fpll",
+ BM1880_CLK_ENABLE1, 19, BM1880_CLK_DIV25, 16, 5, 6,
+ bm1880_div_table_0, 0),
+ GATE_DIV(BM1880_CLK_AXI5, "clk_axi5", "clk_fpll",
+ BM1880_CLK_ENABLE1, 20, BM1880_CLK_DIV26, 16, 5, 15,
+ bm1880_div_table_0, 0),
+};
+
+static unsigned long bm1880_pll_rate_calc(u32 regval, unsigned long parent_rate)
+{
+ u64 numerator;
+ u32 fbdiv, refdiv;
+ u32 postdiv1, postdiv2, denominator;
+
+ fbdiv = (regval >> 16) & 0xfff;
+ refdiv = regval & 0x1f;
+ postdiv1 = (regval >> 8) & 0x7;
+ postdiv2 = (regval >> 12) & 0x7;
+
+ numerator = parent_rate * fbdiv;
+ denominator = refdiv * postdiv1 * postdiv2;
+ do_div(numerator, denominator);
+
+ return (unsigned long)numerator;
+}
+
+static unsigned long bm1880_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct bm1880_pll_hw_clock *pll_hw = to_bm1880_pll_clk(hw);
+ unsigned long rate;
+ u32 regval;
+
+ regval = readl(pll_hw->base + pll_hw->pll.reg);
+ rate = bm1880_pll_rate_calc(regval, parent_rate);
+
+ return rate;
+}
+
+static const struct clk_ops bm1880_pll_ops = {
+ .recalc_rate = bm1880_pll_recalc_rate,
+};
+
+static struct clk_hw *bm1880_clk_register_pll(struct bm1880_pll_hw_clock *pll_clk,
+ void __iomem *sys_base)
+{
+ struct clk_hw *hw;
+ int err;
+
+ pll_clk->base = sys_base;
+ hw = &pll_clk->hw;
+
+ err = clk_hw_register(NULL, hw);
+ if (err)
+ return ERR_PTR(err);
+
+ return hw;
+}
+
+static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
+ int num_clks,
+ struct bm1880_clock_data *data)
+{
+ struct clk_hw *hw;
+ void __iomem *pll_base = data->pll_base;
+ int i;
+
+ for (i = 0; i < num_clks; i++) {
+ struct bm1880_pll_hw_clock *bm1880_clk = &clks[i];
+
+ hw = bm1880_clk_register_pll(bm1880_clk, pll_base);
+ if (IS_ERR(hw)) {
+ pr_err("%s: failed to register clock %s\n",
+ __func__, bm1880_clk->pll.name);
+ goto err_clk;
+ }
+
+ data->hw_data.hws[clks[i].pll.id] = hw;
+ }
+
+ return 0;
+
+err_clk:
+ while (i--)
+ clk_hw_unregister(data->hw_data.hws[clks[i].pll.id]);
+
+ return PTR_ERR(hw);
+}
+
+static int bm1880_clk_register_mux(const struct bm1880_mux_clock *clks,
+ int num_clks,
+ struct bm1880_clock_data *data)
+{
+ struct clk_hw *hw;
+ void __iomem *sys_base = data->sys_base;
+ int i;
+
+ for (i = 0; i < num_clks; i++) {
+ hw = clk_hw_register_mux(NULL, clks[i].name,
+ clks[i].parents,
+ clks[i].num_parents,
+ clks[i].flags,
+ sys_base + clks[i].reg,
+ clks[i].shift, 1, 0,
+ &bm1880_clk_lock);
+ if (IS_ERR(hw)) {
+ pr_err("%s: failed to register clock %s\n",
+ __func__, clks[i].name);
+ goto err_clk;
+ }
+
+ data->hw_data.hws[clks[i].id] = hw;
+ }
+
+ return 0;
+
+err_clk:
+ while (i--)
+ clk_hw_unregister_mux(data->hw_data.hws[clks[i].id]);
+
+ return PTR_ERR(hw);
+}
+
+static unsigned long bm1880_clk_div_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw);
+ struct bm1880_div_clock *div = &div_hw->div;
+ void __iomem *reg_addr = div_hw->base + div->reg;
+ unsigned int val;
+ unsigned long rate;
+
+ if (!(readl(reg_addr) & BIT(3))) {
+ val = div->initval;
+ } else {
+ val = readl(reg_addr) >> div->shift;
+ val &= clk_div_mask(div->width);
+ }
+
+ rate = divider_recalc_rate(hw, parent_rate, val, div->table,
+ div->flags, div->width);
+
+ return rate;
+}
+
+static long bm1880_clk_div_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *prate)
+{
+ struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw);
+ struct bm1880_div_clock *div = &div_hw->div;
+ void __iomem *reg_addr = div_hw->base + div->reg;
+
+ if (div->flags & CLK_DIVIDER_READ_ONLY) {
+ u32 val;
+
+ val = readl(reg_addr) >> div->shift;
+ val &= clk_div_mask(div->width);
+
+ return divider_ro_round_rate(hw, rate, prate, div->table,
+ div->width, div->flags,
+ val);
+ }
+
+ return divider_round_rate(hw, rate, prate, div->table,
+ div->width, div->flags);
+}
+
+static int bm1880_clk_div_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw);
+ struct bm1880_div_clock *div = &div_hw->div;
+ void __iomem *reg_addr = div_hw->base + div->reg;
+ unsigned long flags = 0;
+ int value;
+ u32 val;
+
+ value = divider_get_val(rate, parent_rate, div->table,
+ div->width, div_hw->div.flags);
+ if (value < 0)
+ return value;
+
+ if (div_hw->lock)
+ spin_lock_irqsave(div_hw->lock, flags);
+ else
+ __acquire(div_hw->lock);
+
+ val = readl(reg_addr);
+ val &= ~(clk_div_mask(div->width) << div_hw->div.shift);
+ val |= (u32)value << div->shift;
+ writel(val, reg_addr);
+
+ if (div_hw->lock)
+ spin_unlock_irqrestore(div_hw->lock, flags);
+ else
+ __release(div_hw->lock);
+
+ return 0;
+}
+
+static const struct clk_ops bm1880_clk_div_ops = {
+ .recalc_rate = bm1880_clk_div_recalc_rate,
+ .round_rate = bm1880_clk_div_round_rate,
+ .set_rate = bm1880_clk_div_set_rate,
+};
+
+static struct clk_hw *bm1880_clk_register_div(struct bm1880_div_hw_clock *div_clk,
+ void __iomem *sys_base)
+{
+ struct clk_hw *hw;
+ int err;
+
+ div_clk->div.flags = CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO;
+ div_clk->base = sys_base;
+ div_clk->lock = &bm1880_clk_lock;
+
+ hw = &div_clk->hw;
+ err = clk_hw_register(NULL, hw);
+ if (err)
+ return ERR_PTR(err);
+
+ return hw;
+}
+
+static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
+ int num_clks,
+ struct bm1880_clock_data *data)
+{
+ struct clk_hw *hw;
+ void __iomem *sys_base = data->sys_base;
+ unsigned int i, id;
+
+ for (i = 0; i < num_clks; i++) {
+ struct bm1880_div_hw_clock *bm1880_clk = &clks[i];
+
+ hw = bm1880_clk_register_div(bm1880_clk, sys_base);
+ if (IS_ERR(hw)) {
+ pr_err("%s: failed to register clock %s\n",
+ __func__, bm1880_clk->div.name);
+ goto err_clk;
+ }
+
+ id = clks[i].div.id;
+ data->hw_data.hws[id] = hw;
+ }
+
+ return 0;
+
+err_clk:
+ while (i--)
+ clk_hw_unregister(data->hw_data.hws[clks[i].div.id]);
+
+ return PTR_ERR(hw);
+}
+
+static int bm1880_clk_register_gate(const struct bm1880_gate_clock *clks,
+ int num_clks,
+ struct bm1880_clock_data *data)
+{
+ struct clk_hw *hw;
+ void __iomem *sys_base = data->sys_base;
+ int i;
+
+ for (i = 0; i < num_clks; i++) {
+ hw = clk_hw_register_gate(NULL, clks[i].name,
+ clks[i].parent,
+ clks[i].flags,
+ sys_base + clks[i].gate_reg,
+ clks[i].gate_shift, 0,
+ &bm1880_clk_lock);
+ if (IS_ERR(hw)) {
+ pr_err("%s: failed to register clock %s\n",
+ __func__, clks[i].name);
+ goto err_clk;
+ }
+
+ data->hw_data.hws[clks[i].id] = hw;
+ }
+
+ return 0;
+
+err_clk:
+ while (i--)
+ clk_hw_unregister_gate(data->hw_data.hws[clks[i].id]);
+
+ return PTR_ERR(hw);
+}
+
+static struct clk_hw *bm1880_clk_register_composite(struct bm1880_composite_clock *clks,
+ void __iomem *sys_base)
+{
+ struct clk_hw *hw;
+ struct clk_mux *mux = NULL;
+ struct clk_gate *gate = NULL;
+ struct bm1880_div_hw_clock *div_hws = NULL;
+ struct clk_hw *mux_hw = NULL, *gate_hw = NULL, *div_hw = NULL;
+ const struct clk_ops *mux_ops = NULL, *gate_ops = NULL, *div_ops = NULL;
+ const char * const *parent_names;
+ const char *parent;
+ int num_parents;
+ int ret;
+
+ if (clks->mux_shift >= 0) {
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ return ERR_PTR(-ENOMEM);
+
+ mux->reg = sys_base + clks->mux_reg;
+ mux->mask = 1;
+ mux->shift = clks->mux_shift;
+ mux_hw = &mux->hw;
+ mux_ops = &clk_mux_ops;
+ mux->lock = &bm1880_clk_lock;
+
+ parent_names = clks->parents;
+ num_parents = clks->num_parents;
+ } else {
+ parent = clks->parent;
+ parent_names = &parent;
+ num_parents = 1;
+ }
+
+ if (clks->gate_shift >= 0) {
+ gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+ if (!gate) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
+ gate->reg = sys_base + clks->gate_reg;
+ gate->bit_idx = clks->gate_shift;
+ gate->lock = &bm1880_clk_lock;
+
+ gate_hw = &gate->hw;
+ gate_ops = &clk_gate_ops;
+ }
+
+ if (clks->div_shift >= 0) {
+ div_hws = kzalloc(sizeof(*div_hws), GFP_KERNEL);
+ if (!div_hws) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
+ div_hws->base = sys_base;
+ div_hws->div.reg = clks->div_reg;
+ div_hws->div.shift = clks->div_shift;
+ div_hws->div.width = clks->div_width;
+ div_hws->div.table = clks->table;
+ div_hws->div.initval = clks->div_initval;
+ div_hws->lock = &bm1880_clk_lock;
+ div_hws->div.flags = CLK_DIVIDER_ONE_BASED |
+ CLK_DIVIDER_ALLOW_ZERO;
+
+ div_hw = &div_hws->hw;
+ div_ops = &bm1880_clk_div_ops;
+ }
+
+ hw = clk_hw_register_composite(NULL, clks->name, parent_names,
+ num_parents, mux_hw, mux_ops, div_hw,
+ div_ops, gate_hw, gate_ops,
+ clks->flags);
+
+ if (IS_ERR(hw)) {
+ ret = PTR_ERR(hw);
+ goto err_out;
+ }
+
+ return hw;
+
+err_out:
+ kfree(div_hws);
+ kfree(gate);
+ kfree(mux);
+
+ return ERR_PTR(ret);
+}
+
+static int bm1880_clk_register_composites(struct bm1880_composite_clock *clks,
+ int num_clks,
+ struct bm1880_clock_data *data)
+{
+ struct clk_hw *hw;
+ void __iomem *sys_base = data->sys_base;
+ int i;
+
+ for (i = 0; i < num_clks; i++) {
+ struct bm1880_composite_clock *bm1880_clk = &clks[i];
+
+ hw = bm1880_clk_register_composite(bm1880_clk, sys_base);
+ if (IS_ERR(hw)) {
+ pr_err("%s: failed to register clock %s\n",
+ __func__, bm1880_clk->name);
+ goto err_clk;
+ }
+
+ data->hw_data.hws[clks[i].id] = hw;
+ }
+
+ return 0;
+
+err_clk:
+ while (i--)
+ clk_hw_unregister_composite(data->hw_data.hws[clks[i].id]);
+
+ return PTR_ERR(hw);
+}
+
+static int bm1880_clk_probe(struct platform_device *pdev)
+{
+ struct bm1880_clock_data *clk_data;
+ void __iomem *pll_base, *sys_base;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ int num_clks, i;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pll_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(pll_base))
+ return PTR_ERR(pll_base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ sys_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(sys_base))
+ return PTR_ERR(sys_base);
+
+ num_clks = ARRAY_SIZE(bm1880_pll_clks) +
+ ARRAY_SIZE(bm1880_div_clks) +
+ ARRAY_SIZE(bm1880_mux_clks) +
+ ARRAY_SIZE(bm1880_composite_clks) +
+ ARRAY_SIZE(bm1880_gate_clks);
+
+ clk_data = devm_kzalloc(dev, struct_size(clk_data, hw_data.hws,
+ num_clks), GFP_KERNEL);
+ if (!clk_data)
+ return -ENOMEM;
+
+ clk_data->pll_base = pll_base;
+ clk_data->sys_base = sys_base;
+
+ for (i = 0; i < num_clks; i++)
+ clk_data->hw_data.hws[i] = ERR_PTR(-ENOENT);
+
+ clk_data->hw_data.num = num_clks;
+
+ bm1880_clk_register_plls(bm1880_pll_clks,
+ ARRAY_SIZE(bm1880_pll_clks),
+ clk_data);
+
+ bm1880_clk_register_divs(bm1880_div_clks,
+ ARRAY_SIZE(bm1880_div_clks),
+ clk_data);
+
+ bm1880_clk_register_mux(bm1880_mux_clks,
+ ARRAY_SIZE(bm1880_mux_clks),
+ clk_data);
+
+ bm1880_clk_register_composites(bm1880_composite_clks,
+ ARRAY_SIZE(bm1880_composite_clks),
+ clk_data);
+
+ bm1880_clk_register_gate(bm1880_gate_clks,
+ ARRAY_SIZE(bm1880_gate_clks),
+ clk_data);
+
+ return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
+ &clk_data->hw_data);
+}
+
+static const struct of_device_id bm1880_of_match[] = {
+ { .compatible = "bitmain,bm1880-clk", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, bm1880_of_match);
+
+static struct platform_driver bm1880_clk_driver = {
+ .driver = {
+ .name = "bm1880-clk",
+ .of_match_table = bm1880_of_match,
+ },
+ .probe = bm1880_clk_probe,
+};
+module_platform_driver(bm1880_clk_driver);
+
+MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
+MODULE_DESCRIPTION("Clock driver for Bitmain BM1880 SoC");
+MODULE_LICENSE("GPL v2");