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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/mtd/nand/spi/micron.c | |
download | linux-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/mtd/nand/spi/micron.c')
-rw-r--r-- | drivers/mtd/nand/spi/micron.c | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c new file mode 100644 index 000000000..50b7295bc --- /dev/null +++ b/drivers/mtd/nand/spi/micron.c @@ -0,0 +1,309 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2016-2017 Micron Technology, Inc. + * + * Authors: + * Peter Pan <peterpandong@micron.com> + */ + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/mtd/spinand.h> + +#define SPINAND_MFR_MICRON 0x2c + +#define MICRON_STATUS_ECC_MASK GENMASK(7, 4) +#define MICRON_STATUS_ECC_NO_BITFLIPS (0 << 4) +#define MICRON_STATUS_ECC_1TO3_BITFLIPS (1 << 4) +#define MICRON_STATUS_ECC_4TO6_BITFLIPS (3 << 4) +#define MICRON_STATUS_ECC_7TO8_BITFLIPS (5 << 4) + +#define MICRON_CFG_CR BIT(0) + +/* + * As per datasheet, die selection is done by the 6th bit of Die + * Select Register (Address 0xD0). + */ +#define MICRON_DIE_SELECT_REG 0xD0 + +#define MICRON_SELECT_DIE(x) ((x) << 6) + +static SPINAND_OP_VARIANTS(quadio_read_cache_variants, + SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); + +static SPINAND_OP_VARIANTS(x4_write_cache_variants, + SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), + SPINAND_PROG_LOAD(true, 0, NULL, 0)); + +static SPINAND_OP_VARIANTS(x4_update_cache_variants, + SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), + SPINAND_PROG_LOAD(false, 0, NULL, 0)); + +/* Micron MT29F2G01AAAED Device */ +static SPINAND_OP_VARIANTS(x4_read_cache_variants, + SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), + SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); + +static SPINAND_OP_VARIANTS(x1_write_cache_variants, + SPINAND_PROG_LOAD(true, 0, NULL, 0)); + +static SPINAND_OP_VARIANTS(x1_update_cache_variants, + SPINAND_PROG_LOAD(false, 0, NULL, 0)); + +static int micron_8_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + region->offset = mtd->oobsize / 2; + region->length = mtd->oobsize / 2; + + return 0; +} + +static int micron_8_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + /* Reserve 2 bytes for the BBM. */ + region->offset = 2; + region->length = (mtd->oobsize / 2) - 2; + + return 0; +} + +static const struct mtd_ooblayout_ops micron_8_ooblayout = { + .ecc = micron_8_ooblayout_ecc, + .free = micron_8_ooblayout_free, +}; + +static int micron_4_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + struct spinand_device *spinand = mtd_to_spinand(mtd); + + if (section >= spinand->base.memorg.pagesize / + mtd->ecc_step_size) + return -ERANGE; + + region->offset = (section * 16) + 8; + region->length = 8; + + return 0; +} + +static int micron_4_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + struct spinand_device *spinand = mtd_to_spinand(mtd); + + if (section >= spinand->base.memorg.pagesize / + mtd->ecc_step_size) + return -ERANGE; + + if (section) { + region->offset = 16 * section; + region->length = 8; + } else { + /* section 0 has two bytes reserved for the BBM */ + region->offset = 2; + region->length = 6; + } + + return 0; +} + +static const struct mtd_ooblayout_ops micron_4_ooblayout = { + .ecc = micron_4_ooblayout_ecc, + .free = micron_4_ooblayout_free, +}; + +static int micron_select_target(struct spinand_device *spinand, + unsigned int target) +{ + struct spi_mem_op op = SPINAND_SET_FEATURE_OP(MICRON_DIE_SELECT_REG, + spinand->scratchbuf); + + if (target > 1) + return -EINVAL; + + *spinand->scratchbuf = MICRON_SELECT_DIE(target); + + return spi_mem_exec_op(spinand->spimem, &op); +} + +static int micron_8_ecc_get_status(struct spinand_device *spinand, + u8 status) +{ + switch (status & MICRON_STATUS_ECC_MASK) { + case STATUS_ECC_NO_BITFLIPS: + return 0; + + case STATUS_ECC_UNCOR_ERROR: + return -EBADMSG; + + case MICRON_STATUS_ECC_1TO3_BITFLIPS: + return 3; + + case MICRON_STATUS_ECC_4TO6_BITFLIPS: + return 6; + + case MICRON_STATUS_ECC_7TO8_BITFLIPS: + return 8; + + default: + break; + } + + return -EINVAL; +} + +static const struct spinand_info micron_spinand_table[] = { + /* M79A 2Gb 3.3V */ + SPINAND_INFO("MT29F2G01ABAGD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x24), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + 0, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status)), + /* M79A 2Gb 1.8V */ + SPINAND_INFO("MT29F2G01ABBGD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x25), + NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + 0, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status)), + /* M78A 1Gb 3.3V */ + SPINAND_INFO("MT29F1G01ABAFD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x14), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + 0, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status)), + /* M78A 1Gb 1.8V */ + SPINAND_INFO("MT29F1G01ABAFD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x15), + NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + 0, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status)), + /* M79A 4Gb 3.3V */ + SPINAND_INFO("MT29F4G01ADAGD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x36), + NAND_MEMORG(1, 2048, 128, 64, 2048, 80, 2, 1, 2), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + 0, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status), + SPINAND_SELECT_TARGET(micron_select_target)), + /* M70A 4Gb 3.3V */ + SPINAND_INFO("MT29F4G01ABAFD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x34), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + SPINAND_HAS_CR_FEAT_BIT, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status)), + /* M70A 4Gb 1.8V */ + SPINAND_INFO("MT29F4G01ABBFD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x35), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + SPINAND_HAS_CR_FEAT_BIT, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status)), + /* M70A 8Gb 3.3V */ + SPINAND_INFO("MT29F8G01ADAFD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x46), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 2), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + SPINAND_HAS_CR_FEAT_BIT, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status), + SPINAND_SELECT_TARGET(micron_select_target)), + /* M70A 8Gb 1.8V */ + SPINAND_INFO("MT29F8G01ADBFD", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x47), + NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 2), + NAND_ECCREQ(8, 512), + SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants, + &x4_write_cache_variants, + &x4_update_cache_variants), + SPINAND_HAS_CR_FEAT_BIT, + SPINAND_ECCINFO(µn_8_ooblayout, + micron_8_ecc_get_status), + SPINAND_SELECT_TARGET(micron_select_target)), + /* M69A 2Gb 3.3V */ + SPINAND_INFO("MT29F2G01AAAED", + SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x9F), + NAND_MEMORG(1, 2048, 64, 64, 2048, 80, 2, 1, 1), + NAND_ECCREQ(4, 512), + SPINAND_INFO_OP_VARIANTS(&x4_read_cache_variants, + &x1_write_cache_variants, + &x1_update_cache_variants), + 0, + SPINAND_ECCINFO(µn_4_ooblayout, NULL)), +}; + +static int micron_spinand_init(struct spinand_device *spinand) +{ + /* + * M70A device series enable Continuous Read feature at Power-up, + * which is not supported. Disable this bit to avoid any possible + * failure. + */ + if (spinand->flags & SPINAND_HAS_CR_FEAT_BIT) + return spinand_upd_cfg(spinand, MICRON_CFG_CR, 0); + + return 0; +} + +static const struct spinand_manufacturer_ops micron_spinand_manuf_ops = { + .init = micron_spinand_init, +}; + +const struct spinand_manufacturer micron_spinand_manufacturer = { + .id = SPINAND_MFR_MICRON, + .name = "Micron", + .chips = micron_spinand_table, + .nchips = ARRAY_SIZE(micron_spinand_table), + .ops = µn_spinand_manuf_ops, +}; |