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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/mmc/host/sdhci-iproc.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/mmc/host/sdhci-iproc.c')
-rw-r--r--drivers/mmc/host/sdhci-iproc.c440
1 files changed, 440 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
new file mode 100644
index 000000000..6db35b1b8
--- /dev/null
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2014 Broadcom Corporation
+
+/*
+ * iProc SDHCI platform driver
+ */
+
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/mmc/host.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include "sdhci-pltfm.h"
+
+struct sdhci_iproc_data {
+ const struct sdhci_pltfm_data *pdata;
+ u32 caps;
+ u32 caps1;
+ u32 mmc_caps;
+};
+
+struct sdhci_iproc_host {
+ const struct sdhci_iproc_data *data;
+ u32 shadow_cmd;
+ u32 shadow_blk;
+ bool is_cmd_shadowed;
+ bool is_blk_shadowed;
+};
+
+#define REG_OFFSET_IN_BITS(reg) ((reg) << 3 & 0x18)
+
+static inline u32 sdhci_iproc_readl(struct sdhci_host *host, int reg)
+{
+ u32 val = readl(host->ioaddr + reg);
+
+ pr_debug("%s: readl [0x%02x] 0x%08x\n",
+ mmc_hostname(host->mmc), reg, val);
+ return val;
+}
+
+static u16 sdhci_iproc_readw(struct sdhci_host *host, int reg)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_iproc_host *iproc_host = sdhci_pltfm_priv(pltfm_host);
+ u32 val;
+ u16 word;
+
+ if ((reg == SDHCI_TRANSFER_MODE) && iproc_host->is_cmd_shadowed) {
+ /* Get the saved transfer mode */
+ val = iproc_host->shadow_cmd;
+ } else if ((reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) &&
+ iproc_host->is_blk_shadowed) {
+ /* Get the saved block info */
+ val = iproc_host->shadow_blk;
+ } else {
+ val = sdhci_iproc_readl(host, (reg & ~3));
+ }
+ word = val >> REG_OFFSET_IN_BITS(reg) & 0xffff;
+ return word;
+}
+
+static u8 sdhci_iproc_readb(struct sdhci_host *host, int reg)
+{
+ u32 val = sdhci_iproc_readl(host, (reg & ~3));
+ u8 byte = val >> REG_OFFSET_IN_BITS(reg) & 0xff;
+ return byte;
+}
+
+static inline void sdhci_iproc_writel(struct sdhci_host *host, u32 val, int reg)
+{
+ pr_debug("%s: writel [0x%02x] 0x%08x\n",
+ mmc_hostname(host->mmc), reg, val);
+
+ writel(val, host->ioaddr + reg);
+
+ if (host->clock <= 400000) {
+ /* Round up to micro-second four SD clock delay */
+ if (host->clock)
+ udelay((4 * 1000000 + host->clock - 1) / host->clock);
+ else
+ udelay(10);
+ }
+}
+
+/*
+ * The Arasan has a bugette whereby it may lose the content of successive
+ * writes to the same register that are within two SD-card clock cycles of
+ * each other (a clock domain crossing problem). The data
+ * register does not have this problem, which is just as well - otherwise we'd
+ * have to nobble the DMA engine too.
+ *
+ * This wouldn't be a problem with the code except that we can only write the
+ * controller with 32-bit writes. So two different 16-bit registers are
+ * written back to back creates the problem.
+ *
+ * In reality, this only happens when SDHCI_BLOCK_SIZE and SDHCI_BLOCK_COUNT
+ * are written followed by SDHCI_TRANSFER_MODE and SDHCI_COMMAND.
+ * The BLOCK_SIZE and BLOCK_COUNT are meaningless until a command issued so
+ * the work around can be further optimized. We can keep shadow values of
+ * BLOCK_SIZE, BLOCK_COUNT, and TRANSFER_MODE until a COMMAND is issued.
+ * Then, write the BLOCK_SIZE+BLOCK_COUNT in a single 32-bit write followed
+ * by the TRANSFER+COMMAND in another 32-bit write.
+ */
+static void sdhci_iproc_writew(struct sdhci_host *host, u16 val, int reg)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_iproc_host *iproc_host = sdhci_pltfm_priv(pltfm_host);
+ u32 word_shift = REG_OFFSET_IN_BITS(reg);
+ u32 mask = 0xffff << word_shift;
+ u32 oldval, newval;
+
+ if (reg == SDHCI_COMMAND) {
+ /* Write the block now as we are issuing a command */
+ if (iproc_host->is_blk_shadowed) {
+ sdhci_iproc_writel(host, iproc_host->shadow_blk,
+ SDHCI_BLOCK_SIZE);
+ iproc_host->is_blk_shadowed = false;
+ }
+ oldval = iproc_host->shadow_cmd;
+ iproc_host->is_cmd_shadowed = false;
+ } else if ((reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) &&
+ iproc_host->is_blk_shadowed) {
+ /* Block size and count are stored in shadow reg */
+ oldval = iproc_host->shadow_blk;
+ } else {
+ /* Read reg, all other registers are not shadowed */
+ oldval = sdhci_iproc_readl(host, (reg & ~3));
+ }
+ newval = (oldval & ~mask) | (val << word_shift);
+
+ if (reg == SDHCI_TRANSFER_MODE) {
+ /* Save the transfer mode until the command is issued */
+ iproc_host->shadow_cmd = newval;
+ iproc_host->is_cmd_shadowed = true;
+ } else if (reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) {
+ /* Save the block info until the command is issued */
+ iproc_host->shadow_blk = newval;
+ iproc_host->is_blk_shadowed = true;
+ } else {
+ /* Command or other regular 32-bit write */
+ sdhci_iproc_writel(host, newval, reg & ~3);
+ }
+}
+
+static void sdhci_iproc_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+ u32 oldval = sdhci_iproc_readl(host, (reg & ~3));
+ u32 byte_shift = REG_OFFSET_IN_BITS(reg);
+ u32 mask = 0xff << byte_shift;
+ u32 newval = (oldval & ~mask) | (val << byte_shift);
+
+ sdhci_iproc_writel(host, newval, reg & ~3);
+}
+
+static unsigned int sdhci_iproc_get_max_clock(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+
+ if (pltfm_host->clk)
+ return sdhci_pltfm_clk_get_max_clock(host);
+ else
+ return pltfm_host->clock;
+}
+
+/*
+ * There is a known bug on BCM2711's SDHCI core integration where the
+ * controller will hang when the difference between the core clock and the bus
+ * clock is too great. Specifically this can be reproduced under the following
+ * conditions:
+ *
+ * - No SD card plugged in, polling thread is running, probing cards at
+ * 100 kHz.
+ * - BCM2711's core clock configured at 500MHz or more
+ *
+ * So we set 200kHz as the minimum clock frequency available for that SoC.
+ */
+static unsigned int sdhci_iproc_bcm2711_get_min_clock(struct sdhci_host *host)
+{
+ return 200000;
+}
+
+static const struct sdhci_ops sdhci_iproc_ops = {
+ .set_clock = sdhci_set_clock,
+ .get_max_clock = sdhci_iproc_get_max_clock,
+ .set_bus_width = sdhci_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+static const struct sdhci_ops sdhci_iproc_32only_ops = {
+ .read_l = sdhci_iproc_readl,
+ .read_w = sdhci_iproc_readw,
+ .read_b = sdhci_iproc_readb,
+ .write_l = sdhci_iproc_writel,
+ .write_w = sdhci_iproc_writew,
+ .write_b = sdhci_iproc_writeb,
+ .set_clock = sdhci_set_clock,
+ .get_max_clock = sdhci_iproc_get_max_clock,
+ .set_bus_width = sdhci_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+static const struct sdhci_pltfm_data sdhci_iproc_cygnus_pltfm_data = {
+ .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_NO_HISPD_BIT,
+ .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN | SDHCI_QUIRK2_HOST_OFF_CARD_ON,
+ .ops = &sdhci_iproc_32only_ops,
+};
+
+static const struct sdhci_iproc_data iproc_cygnus_data = {
+ .pdata = &sdhci_iproc_cygnus_pltfm_data,
+ .caps = ((0x1 << SDHCI_MAX_BLOCK_SHIFT)
+ & SDHCI_MAX_BLOCK_MASK) |
+ SDHCI_CAN_VDD_330 |
+ SDHCI_CAN_VDD_180 |
+ SDHCI_CAN_DO_SUSPEND |
+ SDHCI_CAN_DO_HISPD |
+ SDHCI_CAN_DO_ADMA2 |
+ SDHCI_CAN_DO_SDMA,
+ .caps1 = SDHCI_DRIVER_TYPE_C |
+ SDHCI_DRIVER_TYPE_D |
+ SDHCI_SUPPORT_DDR50,
+ .mmc_caps = MMC_CAP_1_8V_DDR,
+};
+
+static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
+ .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 |
+ SDHCI_QUIRK_NO_HISPD_BIT,
+ .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
+ .ops = &sdhci_iproc_ops,
+};
+
+static const struct sdhci_iproc_data iproc_data = {
+ .pdata = &sdhci_iproc_pltfm_data,
+ .caps = ((0x1 << SDHCI_MAX_BLOCK_SHIFT)
+ & SDHCI_MAX_BLOCK_MASK) |
+ SDHCI_CAN_VDD_330 |
+ SDHCI_CAN_VDD_180 |
+ SDHCI_CAN_DO_SUSPEND |
+ SDHCI_CAN_DO_HISPD |
+ SDHCI_CAN_DO_ADMA2 |
+ SDHCI_CAN_DO_SDMA,
+ .caps1 = SDHCI_DRIVER_TYPE_C |
+ SDHCI_DRIVER_TYPE_D |
+ SDHCI_SUPPORT_DDR50,
+};
+
+static const struct sdhci_pltfm_data sdhci_bcm2835_pltfm_data = {
+ .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_MISSING_CAPS |
+ SDHCI_QUIRK_NO_HISPD_BIT,
+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ .ops = &sdhci_iproc_32only_ops,
+};
+
+static const struct sdhci_iproc_data bcm2835_data = {
+ .pdata = &sdhci_bcm2835_pltfm_data,
+ .caps = ((0x1 << SDHCI_MAX_BLOCK_SHIFT)
+ & SDHCI_MAX_BLOCK_MASK) |
+ SDHCI_CAN_VDD_330 |
+ SDHCI_CAN_DO_HISPD,
+ .caps1 = SDHCI_DRIVER_TYPE_A |
+ SDHCI_DRIVER_TYPE_C,
+ .mmc_caps = 0x00000000,
+};
+
+static const struct sdhci_ops sdhci_iproc_bcm2711_ops = {
+ .read_l = sdhci_iproc_readl,
+ .read_w = sdhci_iproc_readw,
+ .read_b = sdhci_iproc_readb,
+ .write_l = sdhci_iproc_writel,
+ .write_w = sdhci_iproc_writew,
+ .write_b = sdhci_iproc_writeb,
+ .set_clock = sdhci_set_clock,
+ .set_power = sdhci_set_power_and_bus_voltage,
+ .get_max_clock = sdhci_iproc_get_max_clock,
+ .get_min_clock = sdhci_iproc_bcm2711_get_min_clock,
+ .set_bus_width = sdhci_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+static const struct sdhci_pltfm_data sdhci_bcm2711_pltfm_data = {
+ .quirks = SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
+ .ops = &sdhci_iproc_bcm2711_ops,
+};
+
+static const struct sdhci_iproc_data bcm2711_data = {
+ .pdata = &sdhci_bcm2711_pltfm_data,
+ .mmc_caps = MMC_CAP_3_3V_DDR,
+};
+
+static const struct sdhci_pltfm_data sdhci_bcm7211a0_pltfm_data = {
+ .quirks = SDHCI_QUIRK_MISSING_CAPS |
+ SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
+ SDHCI_QUIRK_BROKEN_DMA |
+ SDHCI_QUIRK_BROKEN_ADMA,
+ .ops = &sdhci_iproc_ops,
+};
+
+#define BCM7211A0_BASE_CLK_MHZ 100
+static const struct sdhci_iproc_data bcm7211a0_data = {
+ .pdata = &sdhci_bcm7211a0_pltfm_data,
+ .caps = ((BCM7211A0_BASE_CLK_MHZ / 2) << SDHCI_TIMEOUT_CLK_SHIFT) |
+ (BCM7211A0_BASE_CLK_MHZ << SDHCI_CLOCK_BASE_SHIFT) |
+ ((0x2 << SDHCI_MAX_BLOCK_SHIFT)
+ & SDHCI_MAX_BLOCK_MASK) |
+ SDHCI_CAN_VDD_330 |
+ SDHCI_CAN_VDD_180 |
+ SDHCI_CAN_DO_SUSPEND |
+ SDHCI_CAN_DO_HISPD,
+ .caps1 = SDHCI_DRIVER_TYPE_C |
+ SDHCI_DRIVER_TYPE_D,
+};
+
+static const struct of_device_id sdhci_iproc_of_match[] = {
+ { .compatible = "brcm,bcm2835-sdhci", .data = &bcm2835_data },
+ { .compatible = "brcm,bcm2711-emmc2", .data = &bcm2711_data },
+ { .compatible = "brcm,sdhci-iproc-cygnus", .data = &iproc_cygnus_data},
+ { .compatible = "brcm,sdhci-iproc", .data = &iproc_data },
+ { .compatible = "brcm,bcm7211a0-sdhci", .data = &bcm7211a0_data },
+ { }
+};
+MODULE_DEVICE_TABLE(of, sdhci_iproc_of_match);
+
+#ifdef CONFIG_ACPI
+/*
+ * This is a duplicate of bcm2835_(pltfrm_)data without caps quirks
+ * which are provided by the ACPI table.
+ */
+static const struct sdhci_pltfm_data sdhci_bcm_arasan_data = {
+ .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_NO_HISPD_BIT,
+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ .ops = &sdhci_iproc_32only_ops,
+};
+
+static const struct sdhci_iproc_data bcm_arasan_data = {
+ .pdata = &sdhci_bcm_arasan_data,
+};
+
+static const struct acpi_device_id sdhci_iproc_acpi_ids[] = {
+ { .id = "BRCM5871", .driver_data = (kernel_ulong_t)&iproc_cygnus_data },
+ { .id = "BRCM5872", .driver_data = (kernel_ulong_t)&iproc_data },
+ { .id = "BCM2847", .driver_data = (kernel_ulong_t)&bcm_arasan_data },
+ { .id = "BRCME88C", .driver_data = (kernel_ulong_t)&bcm2711_data },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(acpi, sdhci_iproc_acpi_ids);
+#endif
+
+static int sdhci_iproc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct sdhci_iproc_data *iproc_data = NULL;
+ struct sdhci_host *host;
+ struct sdhci_iproc_host *iproc_host;
+ struct sdhci_pltfm_host *pltfm_host;
+ int ret;
+
+ iproc_data = device_get_match_data(dev);
+ if (!iproc_data)
+ return -ENODEV;
+
+ host = sdhci_pltfm_init(pdev, iproc_data->pdata, sizeof(*iproc_host));
+ if (IS_ERR(host))
+ return PTR_ERR(host);
+
+ pltfm_host = sdhci_priv(host);
+ iproc_host = sdhci_pltfm_priv(pltfm_host);
+
+ iproc_host->data = iproc_data;
+
+ ret = mmc_of_parse(host->mmc);
+ if (ret)
+ goto err;
+
+ sdhci_get_property(pdev);
+
+ host->mmc->caps |= iproc_host->data->mmc_caps;
+
+ if (dev->of_node) {
+ pltfm_host->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(pltfm_host->clk)) {
+ ret = PTR_ERR(pltfm_host->clk);
+ goto err;
+ }
+ ret = clk_prepare_enable(pltfm_host->clk);
+ if (ret) {
+ dev_err(dev, "failed to enable host clk\n");
+ goto err;
+ }
+ }
+
+ if (iproc_host->data->pdata->quirks & SDHCI_QUIRK_MISSING_CAPS) {
+ host->caps = iproc_host->data->caps;
+ host->caps1 = iproc_host->data->caps1;
+ }
+
+ ret = sdhci_add_host(host);
+ if (ret)
+ goto err_clk;
+
+ return 0;
+
+err_clk:
+ if (dev->of_node)
+ clk_disable_unprepare(pltfm_host->clk);
+err:
+ sdhci_pltfm_free(pdev);
+ return ret;
+}
+
+static void sdhci_iproc_shutdown(struct platform_device *pdev)
+{
+ sdhci_pltfm_suspend(&pdev->dev);
+}
+
+static struct platform_driver sdhci_iproc_driver = {
+ .driver = {
+ .name = "sdhci-iproc",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ .of_match_table = sdhci_iproc_of_match,
+ .acpi_match_table = ACPI_PTR(sdhci_iproc_acpi_ids),
+ .pm = &sdhci_pltfm_pmops,
+ },
+ .probe = sdhci_iproc_probe,
+ .remove = sdhci_pltfm_unregister,
+ .shutdown = sdhci_iproc_shutdown,
+};
+module_platform_driver(sdhci_iproc_driver);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("IPROC SDHCI driver");
+MODULE_LICENSE("GPL v2");