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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/clk-npcm7xx.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/clk-npcm7xx.c')
-rw-r--r--drivers/clk/clk-npcm7xx.c519
1 files changed, 519 insertions, 0 deletions
diff --git a/drivers/clk/clk-npcm7xx.c b/drivers/clk/clk-npcm7xx.c
new file mode 100644
index 000000000..e319cfa51
--- /dev/null
+++ b/drivers/clk/clk-npcm7xx.c
@@ -0,0 +1,519 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Nuvoton NPCM7xx Clock Generator
+ * All the clocks are initialized by the bootloader, so this driver allow only
+ * reading of current settings directly from the hardware.
+ *
+ * Copyright (C) 2018 Nuvoton Technologies tali.perry@nuvoton.com
+ */
+
+#include <linux/module.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/bitfield.h>
+
+#include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
+
+struct npcm7xx_clk_pll {
+ struct clk_hw hw;
+ void __iomem *pllcon;
+ u8 flags;
+};
+
+#define to_npcm7xx_clk_pll(_hw) container_of(_hw, struct npcm7xx_clk_pll, hw)
+
+#define PLLCON_LOKI BIT(31)
+#define PLLCON_LOKS BIT(30)
+#define PLLCON_FBDV GENMASK(27, 16)
+#define PLLCON_OTDV2 GENMASK(15, 13)
+#define PLLCON_PWDEN BIT(12)
+#define PLLCON_OTDV1 GENMASK(10, 8)
+#define PLLCON_INDV GENMASK(5, 0)
+
+static unsigned long npcm7xx_clk_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct npcm7xx_clk_pll *pll = to_npcm7xx_clk_pll(hw);
+ unsigned long fbdv, indv, otdv1, otdv2;
+ unsigned int val;
+ u64 ret;
+
+ if (parent_rate == 0) {
+ pr_err("%s: parent rate is zero", __func__);
+ return 0;
+ }
+
+ val = readl_relaxed(pll->pllcon);
+
+ indv = FIELD_GET(PLLCON_INDV, val);
+ fbdv = FIELD_GET(PLLCON_FBDV, val);
+ otdv1 = FIELD_GET(PLLCON_OTDV1, val);
+ otdv2 = FIELD_GET(PLLCON_OTDV2, val);
+
+ ret = (u64)parent_rate * fbdv;
+ do_div(ret, indv * otdv1 * otdv2);
+
+ return ret;
+}
+
+static const struct clk_ops npcm7xx_clk_pll_ops = {
+ .recalc_rate = npcm7xx_clk_pll_recalc_rate,
+};
+
+static struct clk_hw *
+npcm7xx_clk_register_pll(void __iomem *pllcon, const char *name,
+ const char *parent_name, unsigned long flags)
+{
+ struct npcm7xx_clk_pll *pll;
+ struct clk_init_data init;
+ struct clk_hw *hw;
+ int ret;
+
+ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ if (!pll)
+ return ERR_PTR(-ENOMEM);
+
+ pr_debug("%s reg, name=%s, p=%s\n", __func__, name, parent_name);
+
+ init.name = name;
+ init.ops = &npcm7xx_clk_pll_ops;
+ init.parent_names = &parent_name;
+ init.num_parents = 1;
+ init.flags = flags;
+
+ pll->pllcon = pllcon;
+ pll->hw.init = &init;
+
+ hw = &pll->hw;
+
+ ret = clk_hw_register(NULL, hw);
+ if (ret) {
+ kfree(pll);
+ hw = ERR_PTR(ret);
+ }
+
+ return hw;
+}
+
+#define NPCM7XX_CLKEN1 (0x00)
+#define NPCM7XX_CLKEN2 (0x28)
+#define NPCM7XX_CLKEN3 (0x30)
+#define NPCM7XX_CLKSEL (0x04)
+#define NPCM7XX_CLKDIV1 (0x08)
+#define NPCM7XX_CLKDIV2 (0x2C)
+#define NPCM7XX_CLKDIV3 (0x58)
+#define NPCM7XX_PLLCON0 (0x0C)
+#define NPCM7XX_PLLCON1 (0x10)
+#define NPCM7XX_PLLCON2 (0x54)
+#define NPCM7XX_SWRSTR (0x14)
+#define NPCM7XX_IRQWAKECON (0x18)
+#define NPCM7XX_IRQWAKEFLAG (0x1C)
+#define NPCM7XX_IPSRST1 (0x20)
+#define NPCM7XX_IPSRST2 (0x24)
+#define NPCM7XX_IPSRST3 (0x34)
+#define NPCM7XX_WD0RCR (0x38)
+#define NPCM7XX_WD1RCR (0x3C)
+#define NPCM7XX_WD2RCR (0x40)
+#define NPCM7XX_SWRSTC1 (0x44)
+#define NPCM7XX_SWRSTC2 (0x48)
+#define NPCM7XX_SWRSTC3 (0x4C)
+#define NPCM7XX_SWRSTC4 (0x50)
+#define NPCM7XX_CORSTC (0x5C)
+#define NPCM7XX_PLLCONG (0x60)
+#define NPCM7XX_AHBCKFI (0x64)
+#define NPCM7XX_SECCNT (0x68)
+#define NPCM7XX_CNTR25M (0x6C)
+
+struct npcm7xx_clk_mux_data {
+ u8 shift;
+ u8 mask;
+ u32 *table;
+ const char *name;
+ const char * const *parent_names;
+ u8 num_parents;
+ unsigned long flags;
+ /*
+ * If this clock is exported via DT, set onecell_idx to constant
+ * defined in include/dt-bindings/clock/nuvoton, NPCM7XX-clock.h for
+ * this specific clock. Otherwise, set to -1.
+ */
+ int onecell_idx;
+
+};
+
+struct npcm7xx_clk_div_data {
+ u32 reg;
+ u8 shift;
+ u8 width;
+ const char *name;
+ const char *parent_name;
+ u8 clk_divider_flags;
+ unsigned long flags;
+ /*
+ * If this clock is exported via DT, set onecell_idx to constant
+ * defined in include/dt-bindings/clock/nuvoton, NPCM7XX-clock.h for
+ * this specific clock. Otherwise, set to -1.
+ */
+ int onecell_idx;
+};
+
+struct npcm7xx_clk_pll_data {
+ u32 reg;
+ const char *name;
+ const char *parent_name;
+ unsigned long flags;
+ /*
+ * If this clock is exported via DT, set onecell_idx to constant
+ * defined in include/dt-bindings/clock/nuvoton, NPCM7XX-clock.h for
+ * this specific clock. Otherwise, set to -1.
+ */
+ int onecell_idx;
+};
+
+/*
+ * Single copy of strings used to refer to clocks within this driver indexed by
+ * above enum.
+ */
+#define NPCM7XX_CLK_S_REFCLK "refclk"
+#define NPCM7XX_CLK_S_SYSBYPCK "sysbypck"
+#define NPCM7XX_CLK_S_MCBYPCK "mcbypck"
+#define NPCM7XX_CLK_S_GFXBYPCK "gfxbypck"
+#define NPCM7XX_CLK_S_PLL0 "pll0"
+#define NPCM7XX_CLK_S_PLL1 "pll1"
+#define NPCM7XX_CLK_S_PLL1_DIV2 "pll1_div2"
+#define NPCM7XX_CLK_S_PLL2 "pll2"
+#define NPCM7XX_CLK_S_PLL_GFX "pll_gfx"
+#define NPCM7XX_CLK_S_PLL2_DIV2 "pll2_div2"
+#define NPCM7XX_CLK_S_PIX_MUX "gfx_pixel"
+#define NPCM7XX_CLK_S_GPRFSEL_MUX "gprfsel_mux"
+#define NPCM7XX_CLK_S_MC_MUX "mc_phy"
+#define NPCM7XX_CLK_S_CPU_MUX "cpu" /*AKA system clock.*/
+#define NPCM7XX_CLK_S_MC "mc"
+#define NPCM7XX_CLK_S_AXI "axi" /*AKA CLK2*/
+#define NPCM7XX_CLK_S_AHB "ahb" /*AKA CLK4*/
+#define NPCM7XX_CLK_S_CLKOUT_MUX "clkout_mux"
+#define NPCM7XX_CLK_S_UART_MUX "uart_mux"
+#define NPCM7XX_CLK_S_TIM_MUX "timer_mux"
+#define NPCM7XX_CLK_S_SD_MUX "sd_mux"
+#define NPCM7XX_CLK_S_GFXM_MUX "gfxm_mux"
+#define NPCM7XX_CLK_S_SU_MUX "serial_usb_mux"
+#define NPCM7XX_CLK_S_DVC_MUX "dvc_mux"
+#define NPCM7XX_CLK_S_GFX_MUX "gfx_mux"
+#define NPCM7XX_CLK_S_GFX_PIXEL "gfx_pixel"
+#define NPCM7XX_CLK_S_SPI0 "spi0"
+#define NPCM7XX_CLK_S_SPI3 "spi3"
+#define NPCM7XX_CLK_S_SPIX "spix"
+#define NPCM7XX_CLK_S_APB1 "apb1"
+#define NPCM7XX_CLK_S_APB2 "apb2"
+#define NPCM7XX_CLK_S_APB3 "apb3"
+#define NPCM7XX_CLK_S_APB4 "apb4"
+#define NPCM7XX_CLK_S_APB5 "apb5"
+#define NPCM7XX_CLK_S_TOCK "tock"
+#define NPCM7XX_CLK_S_CLKOUT "clkout"
+#define NPCM7XX_CLK_S_UART "uart"
+#define NPCM7XX_CLK_S_TIMER "timer"
+#define NPCM7XX_CLK_S_MMC "mmc"
+#define NPCM7XX_CLK_S_SDHC "sdhc"
+#define NPCM7XX_CLK_S_ADC "adc"
+#define NPCM7XX_CLK_S_GFX "gfx0_gfx1_mem"
+#define NPCM7XX_CLK_S_USBIF "serial_usbif"
+#define NPCM7XX_CLK_S_USB_HOST "usb_host"
+#define NPCM7XX_CLK_S_USB_BRIDGE "usb_bridge"
+#define NPCM7XX_CLK_S_PCI "pci"
+
+static u32 pll_mux_table[] = {0, 1, 2, 3};
+static const char * const pll_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_PLL0,
+ NPCM7XX_CLK_S_PLL1_DIV2,
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_PLL2_DIV2,
+};
+
+static u32 cpuck_mux_table[] = {0, 1, 2, 3};
+static const char * const cpuck_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_PLL0,
+ NPCM7XX_CLK_S_PLL1_DIV2,
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_SYSBYPCK,
+};
+
+static u32 pixcksel_mux_table[] = {0, 2};
+static const char * const pixcksel_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_PLL_GFX,
+ NPCM7XX_CLK_S_REFCLK,
+};
+
+static u32 sucksel_mux_table[] = {2, 3};
+static const char * const sucksel_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_PLL2_DIV2,
+};
+
+static u32 mccksel_mux_table[] = {0, 2, 3};
+static const char * const mccksel_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_PLL1_DIV2,
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_MCBYPCK,
+};
+
+static u32 clkoutsel_mux_table[] = {0, 1, 2, 3, 4};
+static const char * const clkoutsel_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_PLL0,
+ NPCM7XX_CLK_S_PLL1_DIV2,
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_PLL_GFX, // divided by 2
+ NPCM7XX_CLK_S_PLL2_DIV2,
+};
+
+static u32 gfxmsel_mux_table[] = {2, 3};
+static const char * const gfxmsel_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_PLL2_DIV2,
+};
+
+static u32 dvcssel_mux_table[] = {2, 3};
+static const char * const dvcssel_mux_parents[] __initconst = {
+ NPCM7XX_CLK_S_REFCLK,
+ NPCM7XX_CLK_S_PLL2,
+};
+
+static const struct npcm7xx_clk_pll_data npcm7xx_plls[] __initconst = {
+ {NPCM7XX_PLLCON0, NPCM7XX_CLK_S_PLL0, NPCM7XX_CLK_S_REFCLK, 0, -1},
+
+ {NPCM7XX_PLLCON1, NPCM7XX_CLK_S_PLL1,
+ NPCM7XX_CLK_S_REFCLK, 0, -1},
+
+ {NPCM7XX_PLLCON2, NPCM7XX_CLK_S_PLL2,
+ NPCM7XX_CLK_S_REFCLK, 0, -1},
+
+ {NPCM7XX_PLLCONG, NPCM7XX_CLK_S_PLL_GFX,
+ NPCM7XX_CLK_S_REFCLK, 0, -1},
+};
+
+static const struct npcm7xx_clk_mux_data npcm7xx_muxes[] __initconst = {
+ {0, GENMASK(1, 0), cpuck_mux_table, NPCM7XX_CLK_S_CPU_MUX,
+ cpuck_mux_parents, ARRAY_SIZE(cpuck_mux_parents), CLK_IS_CRITICAL,
+ NPCM7XX_CLK_CPU},
+
+ {4, GENMASK(1, 0), pixcksel_mux_table, NPCM7XX_CLK_S_PIX_MUX,
+ pixcksel_mux_parents, ARRAY_SIZE(pixcksel_mux_parents), 0,
+ NPCM7XX_CLK_GFX_PIXEL},
+
+ {6, GENMASK(1, 0), pll_mux_table, NPCM7XX_CLK_S_SD_MUX,
+ pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1},
+
+ {8, GENMASK(1, 0), pll_mux_table, NPCM7XX_CLK_S_UART_MUX,
+ pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1},
+
+ {10, GENMASK(1, 0), sucksel_mux_table, NPCM7XX_CLK_S_SU_MUX,
+ sucksel_mux_parents, ARRAY_SIZE(sucksel_mux_parents), 0, -1},
+
+ {12, GENMASK(1, 0), mccksel_mux_table, NPCM7XX_CLK_S_MC_MUX,
+ mccksel_mux_parents, ARRAY_SIZE(mccksel_mux_parents), 0, -1},
+
+ {14, GENMASK(1, 0), pll_mux_table, NPCM7XX_CLK_S_TIM_MUX,
+ pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1},
+
+ {16, GENMASK(1, 0), pll_mux_table, NPCM7XX_CLK_S_GFX_MUX,
+ pll_mux_parents, ARRAY_SIZE(pll_mux_parents), 0, -1},
+
+ {18, GENMASK(2, 0), clkoutsel_mux_table, NPCM7XX_CLK_S_CLKOUT_MUX,
+ clkoutsel_mux_parents, ARRAY_SIZE(clkoutsel_mux_parents), 0, -1},
+
+ {21, GENMASK(1, 0), gfxmsel_mux_table, NPCM7XX_CLK_S_GFXM_MUX,
+ gfxmsel_mux_parents, ARRAY_SIZE(gfxmsel_mux_parents), 0, -1},
+
+ {23, GENMASK(1, 0), dvcssel_mux_table, NPCM7XX_CLK_S_DVC_MUX,
+ dvcssel_mux_parents, ARRAY_SIZE(dvcssel_mux_parents), 0, -1},
+};
+
+/* configurable dividers: */
+static const struct npcm7xx_clk_div_data npcm7xx_divs[] __initconst = {
+ {NPCM7XX_CLKDIV1, 28, 3, NPCM7XX_CLK_S_ADC,
+ NPCM7XX_CLK_S_TIMER, CLK_DIVIDER_POWER_OF_TWO, 0, NPCM7XX_CLK_ADC},
+ /*30-28 ADCCKDIV*/
+ {NPCM7XX_CLKDIV1, 26, 2, NPCM7XX_CLK_S_AHB,
+ NPCM7XX_CLK_S_AXI, 0, CLK_IS_CRITICAL, NPCM7XX_CLK_AHB},
+ /*27-26 CLK4DIV*/
+ {NPCM7XX_CLKDIV1, 21, 5, NPCM7XX_CLK_S_TIMER,
+ NPCM7XX_CLK_S_TIM_MUX, 0, 0, NPCM7XX_CLK_TIMER},
+ /*25-21 TIMCKDIV*/
+ {NPCM7XX_CLKDIV1, 16, 5, NPCM7XX_CLK_S_UART,
+ NPCM7XX_CLK_S_UART_MUX, 0, 0, NPCM7XX_CLK_UART},
+ /*20-16 UARTDIV*/
+ {NPCM7XX_CLKDIV1, 11, 5, NPCM7XX_CLK_S_MMC,
+ NPCM7XX_CLK_S_SD_MUX, 0, 0, NPCM7XX_CLK_MMC},
+ /*15-11 MMCCKDIV*/
+ {NPCM7XX_CLKDIV1, 6, 5, NPCM7XX_CLK_S_SPI3,
+ NPCM7XX_CLK_S_AHB, 0, 0, NPCM7XX_CLK_SPI3},
+ /*10-6 AHB3CKDIV*/
+ {NPCM7XX_CLKDIV1, 2, 4, NPCM7XX_CLK_S_PCI,
+ NPCM7XX_CLK_S_GFX_MUX, 0, 0, NPCM7XX_CLK_PCI},
+ /*5-2 PCICKDIV*/
+ {NPCM7XX_CLKDIV1, 0, 1, NPCM7XX_CLK_S_AXI,
+ NPCM7XX_CLK_S_CPU_MUX, CLK_DIVIDER_POWER_OF_TWO, CLK_IS_CRITICAL,
+ NPCM7XX_CLK_AXI},/*0 CLK2DIV*/
+
+ {NPCM7XX_CLKDIV2, 30, 2, NPCM7XX_CLK_S_APB4,
+ NPCM7XX_CLK_S_AHB, CLK_DIVIDER_POWER_OF_TWO, 0, NPCM7XX_CLK_APB4},
+ /*31-30 APB4CKDIV*/
+ {NPCM7XX_CLKDIV2, 28, 2, NPCM7XX_CLK_S_APB3,
+ NPCM7XX_CLK_S_AHB, CLK_DIVIDER_POWER_OF_TWO, 0, NPCM7XX_CLK_APB3},
+ /*29-28 APB3CKDIV*/
+ {NPCM7XX_CLKDIV2, 26, 2, NPCM7XX_CLK_S_APB2,
+ NPCM7XX_CLK_S_AHB, CLK_DIVIDER_POWER_OF_TWO, 0, NPCM7XX_CLK_APB2},
+ /*27-26 APB2CKDIV*/
+ {NPCM7XX_CLKDIV2, 24, 2, NPCM7XX_CLK_S_APB1,
+ NPCM7XX_CLK_S_AHB, CLK_DIVIDER_POWER_OF_TWO, 0, NPCM7XX_CLK_APB1},
+ /*25-24 APB1CKDIV*/
+ {NPCM7XX_CLKDIV2, 22, 2, NPCM7XX_CLK_S_APB5,
+ NPCM7XX_CLK_S_AHB, CLK_DIVIDER_POWER_OF_TWO, 0, NPCM7XX_CLK_APB5},
+ /*23-22 APB5CKDIV*/
+ {NPCM7XX_CLKDIV2, 16, 5, NPCM7XX_CLK_S_CLKOUT,
+ NPCM7XX_CLK_S_CLKOUT_MUX, 0, 0, NPCM7XX_CLK_CLKOUT},
+ /*20-16 CLKOUTDIV*/
+ {NPCM7XX_CLKDIV2, 13, 3, NPCM7XX_CLK_S_GFX,
+ NPCM7XX_CLK_S_GFX_MUX, 0, 0, NPCM7XX_CLK_GFX},
+ /*15-13 GFXCKDIV*/
+ {NPCM7XX_CLKDIV2, 8, 5, NPCM7XX_CLK_S_USB_BRIDGE,
+ NPCM7XX_CLK_S_SU_MUX, 0, 0, NPCM7XX_CLK_SU},
+ /*12-8 SUCKDIV*/
+ {NPCM7XX_CLKDIV2, 4, 4, NPCM7XX_CLK_S_USB_HOST,
+ NPCM7XX_CLK_S_SU_MUX, 0, 0, NPCM7XX_CLK_SU48},
+ /*7-4 SU48CKDIV*/
+ {NPCM7XX_CLKDIV2, 0, 4, NPCM7XX_CLK_S_SDHC,
+ NPCM7XX_CLK_S_SD_MUX, 0, 0, NPCM7XX_CLK_SDHC}
+ ,/*3-0 SD1CKDIV*/
+
+ {NPCM7XX_CLKDIV3, 6, 5, NPCM7XX_CLK_S_SPI0,
+ NPCM7XX_CLK_S_AHB, 0, 0, NPCM7XX_CLK_SPI0},
+ /*10-6 SPI0CKDV*/
+ {NPCM7XX_CLKDIV3, 1, 5, NPCM7XX_CLK_S_SPIX,
+ NPCM7XX_CLK_S_AHB, 0, 0, NPCM7XX_CLK_SPIX},
+ /*5-1 SPIXCKDV*/
+
+};
+
+static DEFINE_SPINLOCK(npcm7xx_clk_lock);
+
+static void __init npcm7xx_clk_init(struct device_node *clk_np)
+{
+ struct clk_hw_onecell_data *npcm7xx_clk_data;
+ void __iomem *clk_base;
+ struct resource res;
+ struct clk_hw *hw;
+ int ret;
+ int i;
+
+ ret = of_address_to_resource(clk_np, 0, &res);
+ if (ret) {
+ pr_err("%pOFn: failed to get resource, ret %d\n", clk_np,
+ ret);
+ return;
+ }
+
+ clk_base = ioremap(res.start, resource_size(&res));
+ if (!clk_base)
+ goto npcm7xx_init_error;
+
+ npcm7xx_clk_data = kzalloc(struct_size(npcm7xx_clk_data, hws,
+ NPCM7XX_NUM_CLOCKS), GFP_KERNEL);
+ if (!npcm7xx_clk_data)
+ goto npcm7xx_init_np_err;
+
+ npcm7xx_clk_data->num = NPCM7XX_NUM_CLOCKS;
+
+ for (i = 0; i < NPCM7XX_NUM_CLOCKS; i++)
+ npcm7xx_clk_data->hws[i] = ERR_PTR(-EPROBE_DEFER);
+
+ /* Register plls */
+ for (i = 0; i < ARRAY_SIZE(npcm7xx_plls); i++) {
+ const struct npcm7xx_clk_pll_data *pll_data = &npcm7xx_plls[i];
+
+ hw = npcm7xx_clk_register_pll(clk_base + pll_data->reg,
+ pll_data->name, pll_data->parent_name, pll_data->flags);
+ if (IS_ERR(hw)) {
+ pr_err("npcm7xx_clk: Can't register pll\n");
+ goto npcm7xx_init_fail;
+ }
+
+ if (pll_data->onecell_idx >= 0)
+ npcm7xx_clk_data->hws[pll_data->onecell_idx] = hw;
+ }
+
+ /* Register fixed dividers */
+ hw = clk_hw_register_fixed_factor(NULL, NPCM7XX_CLK_S_PLL1_DIV2,
+ NPCM7XX_CLK_S_PLL1, 0, 1, 2);
+ if (IS_ERR(hw)) {
+ pr_err("npcm7xx_clk: Can't register fixed div\n");
+ goto npcm7xx_init_fail;
+ }
+
+ hw = clk_hw_register_fixed_factor(NULL, NPCM7XX_CLK_S_PLL2_DIV2,
+ NPCM7XX_CLK_S_PLL2, 0, 1, 2);
+ if (IS_ERR(hw)) {
+ pr_err("npcm7xx_clk: Can't register div2\n");
+ goto npcm7xx_init_fail;
+ }
+
+ /* Register muxes */
+ for (i = 0; i < ARRAY_SIZE(npcm7xx_muxes); i++) {
+ const struct npcm7xx_clk_mux_data *mux_data = &npcm7xx_muxes[i];
+
+ hw = clk_hw_register_mux_table(NULL,
+ mux_data->name,
+ mux_data->parent_names, mux_data->num_parents,
+ mux_data->flags, clk_base + NPCM7XX_CLKSEL,
+ mux_data->shift, mux_data->mask, 0,
+ mux_data->table, &npcm7xx_clk_lock);
+
+ if (IS_ERR(hw)) {
+ pr_err("npcm7xx_clk: Can't register mux\n");
+ goto npcm7xx_init_fail;
+ }
+
+ if (mux_data->onecell_idx >= 0)
+ npcm7xx_clk_data->hws[mux_data->onecell_idx] = hw;
+ }
+
+ /* Register clock dividers specified in npcm7xx_divs */
+ for (i = 0; i < ARRAY_SIZE(npcm7xx_divs); i++) {
+ const struct npcm7xx_clk_div_data *div_data = &npcm7xx_divs[i];
+
+ hw = clk_hw_register_divider(NULL, div_data->name,
+ div_data->parent_name,
+ div_data->flags,
+ clk_base + div_data->reg,
+ div_data->shift, div_data->width,
+ div_data->clk_divider_flags, &npcm7xx_clk_lock);
+ if (IS_ERR(hw)) {
+ pr_err("npcm7xx_clk: Can't register div table\n");
+ goto npcm7xx_init_fail;
+ }
+
+ if (div_data->onecell_idx >= 0)
+ npcm7xx_clk_data->hws[div_data->onecell_idx] = hw;
+ }
+
+ ret = of_clk_add_hw_provider(clk_np, of_clk_hw_onecell_get,
+ npcm7xx_clk_data);
+ if (ret)
+ pr_err("failed to add DT provider: %d\n", ret);
+
+ of_node_put(clk_np);
+
+ return;
+
+npcm7xx_init_fail:
+ kfree(npcm7xx_clk_data->hws);
+npcm7xx_init_np_err:
+ iounmap(clk_base);
+npcm7xx_init_error:
+ of_node_put(clk_np);
+}
+CLK_OF_DECLARE(npcm7xx_clk_init, "nuvoton,npcm750-clk", npcm7xx_clk_init);