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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-pci-o2micro.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-pci-o2micro.c')
-rw-r--r--drivers/mmc/host/sdhci-pci-o2micro.c925
1 files changed, 925 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
new file mode 100644
index 000000000..98cadff47
--- /dev/null
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -0,0 +1,925 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2013 BayHub Technology Ltd.
+ *
+ * Authors: Peter Guo <peter.guo@bayhubtech.com>
+ * Adam Lee <adam.lee@canonical.com>
+ * Ernest Zhang <ernest.zhang@bayhubtech.com>
+ */
+
+#include <linux/pci.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/delay.h>
+#include <linux/iopoll.h>
+#include <linux/bitfield.h>
+
+#include "sdhci.h"
+#include "sdhci-pci.h"
+
+/*
+ * O2Micro device registers
+ */
+
+#define O2_SD_MISC_REG5 0x64
+#define O2_SD_LD0_CTRL 0x68
+#define O2_SD_DEV_CTRL 0x88
+#define O2_SD_LOCK_WP 0xD3
+#define O2_SD_TEST_REG 0xD4
+#define O2_SD_FUNC_REG0 0xDC
+#define O2_SD_MULTI_VCC3V 0xEE
+#define O2_SD_CLKREQ 0xEC
+#define O2_SD_CAPS 0xE0
+#define O2_SD_ADMA1 0xE2
+#define O2_SD_ADMA2 0xE7
+#define O2_SD_MISC_CTRL2 0xF0
+#define O2_SD_INF_MOD 0xF1
+#define O2_SD_MISC_CTRL4 0xFC
+#define O2_SD_MISC_CTRL 0x1C0
+#define O2_SD_PWR_FORCE_L0 0x0002
+#define O2_SD_TUNING_CTRL 0x300
+#define O2_SD_PLL_SETTING 0x304
+#define O2_SD_MISC_SETTING 0x308
+#define O2_SD_CLK_SETTING 0x328
+#define O2_SD_CAP_REG2 0x330
+#define O2_SD_CAP_REG0 0x334
+#define O2_SD_UHS1_CAP_SETTING 0x33C
+#define O2_SD_DELAY_CTRL 0x350
+#define O2_SD_OUTPUT_CLK_SOURCE_SWITCH 0x354
+#define O2_SD_UHS2_L1_CTRL 0x35C
+#define O2_SD_FUNC_REG3 0x3E0
+#define O2_SD_FUNC_REG4 0x3E4
+#define O2_SD_LED_ENABLE BIT(6)
+#define O2_SD_FREG0_LEDOFF BIT(13)
+#define O2_SD_SEL_DLL BIT(16)
+#define O2_SD_FREG4_ENABLE_CLK_SET BIT(22)
+#define O2_SD_PHASE_MASK GENMASK(23, 20)
+#define O2_SD_FIX_PHASE FIELD_PREP(O2_SD_PHASE_MASK, 0x9)
+
+#define O2_SD_VENDOR_SETTING 0x110
+#define O2_SD_VENDOR_SETTING2 0x1C8
+#define O2_SD_HW_TUNING_DISABLE BIT(4)
+
+#define O2_PLL_DLL_WDT_CONTROL1 0x1CC
+#define O2_PLL_FORCE_ACTIVE BIT(18)
+#define O2_PLL_LOCK_STATUS BIT(14)
+#define O2_PLL_SOFT_RESET BIT(12)
+#define O2_DLL_LOCK_STATUS BIT(11)
+
+#define O2_SD_DETECT_SETTING 0x324
+
+static const u32 dmdn_table[] = {0x2B1C0000,
+ 0x2C1A0000, 0x371B0000, 0x35100000};
+#define DMDN_SZ ARRAY_SIZE(dmdn_table)
+
+struct o2_host {
+ u8 dll_adjust_count;
+};
+
+static void sdhci_o2_wait_card_detect_stable(struct sdhci_host *host)
+{
+ ktime_t timeout;
+ u32 scratch32;
+
+ /* Wait max 50 ms */
+ timeout = ktime_add_ms(ktime_get(), 50);
+ while (1) {
+ bool timedout = ktime_after(ktime_get(), timeout);
+
+ scratch32 = sdhci_readl(host, SDHCI_PRESENT_STATE);
+ if ((scratch32 & SDHCI_CARD_PRESENT) >> SDHCI_CARD_PRES_SHIFT
+ == (scratch32 & SDHCI_CD_LVL) >> SDHCI_CD_LVL_SHIFT)
+ break;
+
+ if (timedout) {
+ pr_err("%s: Card Detect debounce never finished.\n",
+ mmc_hostname(host->mmc));
+ sdhci_dumpregs(host);
+ return;
+ }
+ udelay(10);
+ }
+}
+
+static void sdhci_o2_enable_internal_clock(struct sdhci_host *host)
+{
+ ktime_t timeout;
+ u16 scratch;
+ u32 scratch32;
+
+ /* PLL software reset */
+ scratch32 = sdhci_readl(host, O2_PLL_DLL_WDT_CONTROL1);
+ scratch32 |= O2_PLL_SOFT_RESET;
+ sdhci_writel(host, scratch32, O2_PLL_DLL_WDT_CONTROL1);
+ udelay(1);
+ scratch32 &= ~(O2_PLL_SOFT_RESET);
+ sdhci_writel(host, scratch32, O2_PLL_DLL_WDT_CONTROL1);
+
+ /* PLL force active */
+ scratch32 |= O2_PLL_FORCE_ACTIVE;
+ sdhci_writel(host, scratch32, O2_PLL_DLL_WDT_CONTROL1);
+
+ /* Wait max 20 ms */
+ timeout = ktime_add_ms(ktime_get(), 20);
+ while (1) {
+ bool timedout = ktime_after(ktime_get(), timeout);
+
+ scratch = sdhci_readw(host, O2_PLL_DLL_WDT_CONTROL1);
+ if (scratch & O2_PLL_LOCK_STATUS)
+ break;
+ if (timedout) {
+ pr_err("%s: Internal clock never stabilised.\n",
+ mmc_hostname(host->mmc));
+ sdhci_dumpregs(host);
+ goto out;
+ }
+ udelay(10);
+ }
+
+ /* Wait for card detect finish */
+ udelay(1);
+ sdhci_o2_wait_card_detect_stable(host);
+
+out:
+ /* Cancel PLL force active */
+ scratch32 = sdhci_readl(host, O2_PLL_DLL_WDT_CONTROL1);
+ scratch32 &= ~O2_PLL_FORCE_ACTIVE;
+ sdhci_writel(host, scratch32, O2_PLL_DLL_WDT_CONTROL1);
+}
+
+static int sdhci_o2_get_cd(struct mmc_host *mmc)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+
+ if (!(sdhci_readw(host, O2_PLL_DLL_WDT_CONTROL1) & O2_PLL_LOCK_STATUS))
+ sdhci_o2_enable_internal_clock(host);
+ else
+ sdhci_o2_wait_card_detect_stable(host);
+
+ return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
+}
+
+static void o2_pci_set_baseclk(struct sdhci_pci_chip *chip, u32 value)
+{
+ u32 scratch_32;
+
+ pci_read_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, &scratch_32);
+
+ scratch_32 &= 0x0000FFFF;
+ scratch_32 |= value;
+
+ pci_write_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, scratch_32);
+}
+
+static u32 sdhci_o2_pll_dll_wdt_control(struct sdhci_host *host)
+{
+ return sdhci_readl(host, O2_PLL_DLL_WDT_CONTROL1);
+}
+
+/*
+ * This function is used to detect dll lock status.
+ * Since the dll lock status bit will toggle randomly
+ * with very short interval which needs to be polled
+ * as fast as possible. Set sleep_us as 1 microsecond.
+ */
+static int sdhci_o2_wait_dll_detect_lock(struct sdhci_host *host)
+{
+ u32 scratch32 = 0;
+
+ return readx_poll_timeout(sdhci_o2_pll_dll_wdt_control, host,
+ scratch32, !(scratch32 & O2_DLL_LOCK_STATUS), 1, 1000000);
+}
+
+static void sdhci_o2_set_tuning_mode(struct sdhci_host *host)
+{
+ u16 reg;
+
+ /* enable hardware tuning */
+ reg = sdhci_readw(host, O2_SD_VENDOR_SETTING);
+ reg &= ~O2_SD_HW_TUNING_DISABLE;
+ sdhci_writew(host, reg, O2_SD_VENDOR_SETTING);
+}
+
+static void __sdhci_o2_execute_tuning(struct sdhci_host *host, u32 opcode)
+{
+ int i;
+
+ sdhci_send_tuning(host, opcode);
+
+ for (i = 0; i < 150; i++) {
+ u16 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
+
+ if (!(ctrl & SDHCI_CTRL_EXEC_TUNING)) {
+ if (ctrl & SDHCI_CTRL_TUNED_CLK) {
+ host->tuning_done = true;
+ return;
+ }
+ pr_warn("%s: HW tuning failed !\n",
+ mmc_hostname(host->mmc));
+ break;
+ }
+
+ mdelay(1);
+ }
+
+ pr_info("%s: Tuning failed, falling back to fixed sampling clock\n",
+ mmc_hostname(host->mmc));
+ sdhci_reset_tuning(host);
+}
+
+/*
+ * This function is used to fix o2 dll shift issue.
+ * It isn't necessary to detect card present before recovery.
+ * Firstly, it is used by bht emmc card, which is embedded.
+ * Second, before call recovery card present will be detected
+ * outside of the execute tuning function.
+ */
+static int sdhci_o2_dll_recovery(struct sdhci_host *host)
+{
+ int ret = 0;
+ u8 scratch_8 = 0;
+ u32 scratch_32 = 0;
+ struct sdhci_pci_slot *slot = sdhci_priv(host);
+ struct sdhci_pci_chip *chip = slot->chip;
+ struct o2_host *o2_host = sdhci_pci_priv(slot);
+
+ /* UnLock WP */
+ pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch_8);
+ scratch_8 &= 0x7f;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch_8);
+ while (o2_host->dll_adjust_count < DMDN_SZ && !ret) {
+ /* Disable clock */
+ sdhci_writeb(host, 0, SDHCI_CLOCK_CONTROL);
+
+ /* PLL software reset */
+ scratch_32 = sdhci_readl(host, O2_PLL_DLL_WDT_CONTROL1);
+ scratch_32 |= O2_PLL_SOFT_RESET;
+ sdhci_writel(host, scratch_32, O2_PLL_DLL_WDT_CONTROL1);
+
+ pci_read_config_dword(chip->pdev,
+ O2_SD_FUNC_REG4,
+ &scratch_32);
+ /* Enable Base Clk setting change */
+ scratch_32 |= O2_SD_FREG4_ENABLE_CLK_SET;
+ pci_write_config_dword(chip->pdev, O2_SD_FUNC_REG4, scratch_32);
+ o2_pci_set_baseclk(chip, dmdn_table[o2_host->dll_adjust_count]);
+
+ /* Enable internal clock */
+ scratch_8 = SDHCI_CLOCK_INT_EN;
+ sdhci_writeb(host, scratch_8, SDHCI_CLOCK_CONTROL);
+
+ if (sdhci_o2_get_cd(host->mmc)) {
+ /*
+ * need wait at least 5ms for dll status stable,
+ * after enable internal clock
+ */
+ usleep_range(5000, 6000);
+ if (sdhci_o2_wait_dll_detect_lock(host)) {
+ scratch_8 |= SDHCI_CLOCK_CARD_EN;
+ sdhci_writeb(host, scratch_8,
+ SDHCI_CLOCK_CONTROL);
+ ret = 1;
+ } else {
+ pr_warn("%s: DLL unlocked when dll_adjust_count is %d.\n",
+ mmc_hostname(host->mmc),
+ o2_host->dll_adjust_count);
+ }
+ } else {
+ pr_err("%s: card present detect failed.\n",
+ mmc_hostname(host->mmc));
+ break;
+ }
+
+ o2_host->dll_adjust_count++;
+ }
+ if (!ret && o2_host->dll_adjust_count == DMDN_SZ)
+ pr_err("%s: DLL adjust over max times\n",
+ mmc_hostname(host->mmc));
+ /* Lock WP */
+ pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch_8);
+ scratch_8 |= 0x80;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch_8);
+ return ret;
+}
+
+static int sdhci_o2_execute_tuning(struct mmc_host *mmc, u32 opcode)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+ struct sdhci_pci_slot *slot = sdhci_priv(host);
+ struct sdhci_pci_chip *chip = slot->chip;
+ int current_bus_width = 0;
+ u32 scratch32 = 0;
+ u16 scratch = 0;
+ u8 scratch_8 = 0;
+ u32 reg_val;
+
+ /*
+ * This handler implements the hardware tuning that is specific to
+ * this controller. Fall back to the standard method for other TIMING.
+ */
+ if ((host->timing != MMC_TIMING_MMC_HS200) &&
+ (host->timing != MMC_TIMING_UHS_SDR104) &&
+ (host->timing != MMC_TIMING_UHS_SDR50))
+ return sdhci_execute_tuning(mmc, opcode);
+
+ if (WARN_ON(!mmc_op_tuning(opcode)))
+ return -EINVAL;
+
+ /* Force power mode enter L0 */
+ scratch = sdhci_readw(host, O2_SD_MISC_CTRL);
+ scratch |= O2_SD_PWR_FORCE_L0;
+ sdhci_writew(host, scratch, O2_SD_MISC_CTRL);
+
+ /* Stop clk */
+ reg_val = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
+ reg_val &= ~SDHCI_CLOCK_CARD_EN;
+ sdhci_writew(host, reg_val, SDHCI_CLOCK_CONTROL);
+
+ /* UnLock WP */
+ pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch_8);
+ scratch_8 &= 0x7f;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch_8);
+
+ /* Set pcr 0x354[16] to choose dll clock, and set the default phase */
+ pci_read_config_dword(chip->pdev, O2_SD_OUTPUT_CLK_SOURCE_SWITCH, &reg_val);
+ reg_val &= ~(O2_SD_SEL_DLL | O2_SD_PHASE_MASK);
+ reg_val |= (O2_SD_SEL_DLL | O2_SD_FIX_PHASE);
+ pci_write_config_dword(chip->pdev, O2_SD_OUTPUT_CLK_SOURCE_SWITCH, reg_val);
+
+ /* Lock WP */
+ pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch_8);
+ scratch_8 |= 0x80;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch_8);
+
+ /* Start clk */
+ reg_val = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
+ reg_val |= SDHCI_CLOCK_CARD_EN;
+ sdhci_writew(host, reg_val, SDHCI_CLOCK_CONTROL);
+
+ /* wait DLL lock, timeout value 5ms */
+ if (readx_poll_timeout(sdhci_o2_pll_dll_wdt_control, host,
+ scratch32, (scratch32 & O2_DLL_LOCK_STATUS), 1, 5000))
+ pr_warn("%s: DLL can't lock in 5ms after force L0 during tuning.\n",
+ mmc_hostname(host->mmc));
+ /*
+ * Judge the tuning reason, whether caused by dll shift
+ * If cause by dll shift, should call sdhci_o2_dll_recovery
+ */
+ if (!sdhci_o2_wait_dll_detect_lock(host))
+ if (!sdhci_o2_dll_recovery(host)) {
+ pr_err("%s: o2 dll recovery failed\n",
+ mmc_hostname(host->mmc));
+ return -EINVAL;
+ }
+ /*
+ * o2 sdhci host didn't support 8bit emmc tuning
+ */
+ if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
+ current_bus_width = mmc->ios.bus_width;
+ mmc->ios.bus_width = MMC_BUS_WIDTH_4;
+ sdhci_set_bus_width(host, MMC_BUS_WIDTH_4);
+ }
+
+ sdhci_o2_set_tuning_mode(host);
+
+ sdhci_start_tuning(host);
+
+ __sdhci_o2_execute_tuning(host, opcode);
+
+ sdhci_end_tuning(host);
+
+ if (current_bus_width == MMC_BUS_WIDTH_8) {
+ mmc->ios.bus_width = MMC_BUS_WIDTH_8;
+ sdhci_set_bus_width(host, current_bus_width);
+ }
+
+ /* Cancel force power mode enter L0 */
+ scratch = sdhci_readw(host, O2_SD_MISC_CTRL);
+ scratch &= ~(O2_SD_PWR_FORCE_L0);
+ sdhci_writew(host, scratch, O2_SD_MISC_CTRL);
+
+ sdhci_reset(host, SDHCI_RESET_CMD);
+ sdhci_reset(host, SDHCI_RESET_DATA);
+
+ host->flags &= ~SDHCI_HS400_TUNING;
+ return 0;
+}
+
+static void o2_pci_led_enable(struct sdhci_pci_chip *chip)
+{
+ int ret;
+ u32 scratch_32;
+
+ /* Set led of SD host function enable */
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_FUNC_REG0, &scratch_32);
+ if (ret)
+ return;
+
+ scratch_32 &= ~O2_SD_FREG0_LEDOFF;
+ pci_write_config_dword(chip->pdev,
+ O2_SD_FUNC_REG0, scratch_32);
+
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_TEST_REG, &scratch_32);
+ if (ret)
+ return;
+
+ scratch_32 |= O2_SD_LED_ENABLE;
+ pci_write_config_dword(chip->pdev,
+ O2_SD_TEST_REG, scratch_32);
+}
+
+static void sdhci_pci_o2_fujin2_pci_init(struct sdhci_pci_chip *chip)
+{
+ u32 scratch_32;
+ int ret;
+ /* Improve write performance for SD3.0 */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_DEV_CTRL, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~((1 << 12) | (1 << 13) | (1 << 14));
+ pci_write_config_dword(chip->pdev, O2_SD_DEV_CTRL, scratch_32);
+
+ /* Enable Link abnormal reset generating Reset */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_MISC_REG5, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~((1 << 19) | (1 << 11));
+ scratch_32 |= (1 << 10);
+ pci_write_config_dword(chip->pdev, O2_SD_MISC_REG5, scratch_32);
+
+ /* set card power over current protection */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_TEST_REG, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 |= (1 << 4);
+ pci_write_config_dword(chip->pdev, O2_SD_TEST_REG, scratch_32);
+
+ /* adjust the output delay for SD mode */
+ pci_write_config_dword(chip->pdev, O2_SD_DELAY_CTRL, 0x00002492);
+
+ /* Set the output voltage setting of Aux 1.2v LDO */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_LD0_CTRL, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~(3 << 12);
+ pci_write_config_dword(chip->pdev, O2_SD_LD0_CTRL, scratch_32);
+
+ /* Set Max power supply capability of SD host */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_CAP_REG0, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~(0x01FE);
+ scratch_32 |= 0x00CC;
+ pci_write_config_dword(chip->pdev, O2_SD_CAP_REG0, scratch_32);
+ /* Set DLL Tuning Window */
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_TUNING_CTRL, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~(0x000000FF);
+ scratch_32 |= 0x00000066;
+ pci_write_config_dword(chip->pdev, O2_SD_TUNING_CTRL, scratch_32);
+
+ /* Set UHS2 T_EIDLE */
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_UHS2_L1_CTRL, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~(0x000000FC);
+ scratch_32 |= 0x00000084;
+ pci_write_config_dword(chip->pdev, O2_SD_UHS2_L1_CTRL, scratch_32);
+
+ /* Set UHS2 Termination */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_FUNC_REG3, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~((1 << 21) | (1 << 30));
+
+ pci_write_config_dword(chip->pdev, O2_SD_FUNC_REG3, scratch_32);
+
+ /* Set L1 Entrance Timer */
+ ret = pci_read_config_dword(chip->pdev, O2_SD_CAPS, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~(0xf0000000);
+ scratch_32 |= 0x30000000;
+ pci_write_config_dword(chip->pdev, O2_SD_CAPS, scratch_32);
+
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_MISC_CTRL4, &scratch_32);
+ if (ret)
+ return;
+ scratch_32 &= ~(0x000f0000);
+ scratch_32 |= 0x00080000;
+ pci_write_config_dword(chip->pdev, O2_SD_MISC_CTRL4, scratch_32);
+}
+
+static void sdhci_pci_o2_enable_msi(struct sdhci_pci_chip *chip,
+ struct sdhci_host *host)
+{
+ int ret;
+
+ ret = pci_find_capability(chip->pdev, PCI_CAP_ID_MSI);
+ if (!ret) {
+ pr_info("%s: unsupported MSI, use INTx irq\n",
+ mmc_hostname(host->mmc));
+ return;
+ }
+
+ ret = pci_alloc_irq_vectors(chip->pdev, 1, 1,
+ PCI_IRQ_MSI | PCI_IRQ_MSIX);
+ if (ret < 0) {
+ pr_err("%s: enable PCI MSI failed, err=%d\n",
+ mmc_hostname(host->mmc), ret);
+ return;
+ }
+
+ host->irq = pci_irq_vector(chip->pdev, 0);
+}
+
+static void sdhci_o2_enable_clk(struct sdhci_host *host, u16 clk)
+{
+ /* Enable internal clock */
+ clk |= SDHCI_CLOCK_INT_EN;
+ sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
+
+ sdhci_o2_enable_internal_clock(host);
+ if (sdhci_o2_get_cd(host->mmc)) {
+ clk |= SDHCI_CLOCK_CARD_EN;
+ sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
+ }
+}
+
+static void sdhci_pci_o2_set_clock(struct sdhci_host *host, unsigned int clock)
+{
+ u16 clk;
+ u8 scratch;
+ u32 scratch_32;
+ struct sdhci_pci_slot *slot = sdhci_priv(host);
+ struct sdhci_pci_chip *chip = slot->chip;
+
+ host->mmc->actual_clock = 0;
+
+ sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
+
+ if (clock == 0)
+ return;
+
+ /* UnLock WP */
+ pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch);
+ scratch &= 0x7f;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+
+ if ((host->timing == MMC_TIMING_UHS_SDR104) && (clock == 200000000)) {
+ pci_read_config_dword(chip->pdev, O2_SD_PLL_SETTING, &scratch_32);
+
+ if ((scratch_32 & 0xFFFF0000) != 0x2c280000)
+ o2_pci_set_baseclk(chip, 0x2c280000);
+ } else {
+ pci_read_config_dword(chip->pdev, O2_SD_PLL_SETTING, &scratch_32);
+
+ if ((scratch_32 & 0xFFFF0000) != 0x25100000)
+ o2_pci_set_baseclk(chip, 0x25100000);
+ }
+
+ pci_read_config_dword(chip->pdev, O2_SD_OUTPUT_CLK_SOURCE_SWITCH, &scratch_32);
+ scratch_32 &= ~(O2_SD_SEL_DLL | O2_SD_PHASE_MASK);
+ pci_write_config_dword(chip->pdev, O2_SD_OUTPUT_CLK_SOURCE_SWITCH, scratch_32);
+
+ /* Lock WP */
+ pci_read_config_byte(chip->pdev, O2_SD_LOCK_WP, &scratch);
+ scratch |= 0x80;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+
+ clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock);
+ sdhci_o2_enable_clk(host, clk);
+}
+
+static int sdhci_pci_o2_probe_slot(struct sdhci_pci_slot *slot)
+{
+ struct sdhci_pci_chip *chip;
+ struct sdhci_host *host;
+ struct o2_host *o2_host = sdhci_pci_priv(slot);
+ u32 reg, caps;
+ int ret;
+
+ chip = slot->chip;
+ host = slot->host;
+
+ o2_host->dll_adjust_count = 0;
+ caps = sdhci_readl(host, SDHCI_CAPABILITIES);
+
+ /*
+ * mmc_select_bus_width() will test the bus to determine the actual bus
+ * width.
+ */
+ if (caps & SDHCI_CAN_DO_8BIT)
+ host->mmc->caps |= MMC_CAP_8_BIT_DATA;
+
+ switch (chip->pdev->device) {
+ case PCI_DEVICE_ID_O2_SDS0:
+ case PCI_DEVICE_ID_O2_SEABIRD0:
+ case PCI_DEVICE_ID_O2_SEABIRD1:
+ case PCI_DEVICE_ID_O2_SDS1:
+ case PCI_DEVICE_ID_O2_FUJIN2:
+ reg = sdhci_readl(host, O2_SD_VENDOR_SETTING);
+ if (reg & 0x1)
+ host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
+
+ host->quirks2 |= SDHCI_QUIRK2_BROKEN_DDR50;
+
+ sdhci_pci_o2_enable_msi(chip, host);
+
+ if (chip->pdev->device == PCI_DEVICE_ID_O2_SEABIRD0) {
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_MISC_SETTING, &reg);
+ if (ret)
+ return -EIO;
+ if (reg & (1 << 4)) {
+ pr_info("%s: emmc 1.8v flag is set, force 1.8v signaling voltage\n",
+ mmc_hostname(host->mmc));
+ host->flags &= ~SDHCI_SIGNALING_330;
+ host->flags |= SDHCI_SIGNALING_180;
+ host->mmc->caps2 |= MMC_CAP2_NO_SD;
+ host->mmc->caps2 |= MMC_CAP2_NO_SDIO;
+ pci_write_config_dword(chip->pdev,
+ O2_SD_DETECT_SETTING, 3);
+ }
+
+ slot->host->mmc_host_ops.get_cd = sdhci_o2_get_cd;
+ }
+
+ if (chip->pdev->device == PCI_DEVICE_ID_O2_SEABIRD1) {
+ slot->host->mmc_host_ops.get_cd = sdhci_o2_get_cd;
+ host->mmc->caps2 |= MMC_CAP2_NO_SDIO;
+ host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN;
+ }
+
+ host->mmc_host_ops.execute_tuning = sdhci_o2_execute_tuning;
+
+ if (chip->pdev->device != PCI_DEVICE_ID_O2_FUJIN2)
+ break;
+ /* set dll watch dog timer */
+ reg = sdhci_readl(host, O2_SD_VENDOR_SETTING2);
+ reg |= (1 << 12);
+ sdhci_writel(host, reg, O2_SD_VENDOR_SETTING2);
+
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip)
+{
+ int ret;
+ u8 scratch;
+ u32 scratch_32;
+
+ switch (chip->pdev->device) {
+ case PCI_DEVICE_ID_O2_8220:
+ case PCI_DEVICE_ID_O2_8221:
+ case PCI_DEVICE_ID_O2_8320:
+ case PCI_DEVICE_ID_O2_8321:
+ /* This extra setup is required due to broken ADMA. */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch);
+ if (ret)
+ return ret;
+ scratch &= 0x7f;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+
+ /* Set Multi 3 to VCC3V# */
+ pci_write_config_byte(chip->pdev, O2_SD_MULTI_VCC3V, 0x08);
+
+ /* Disable CLK_REQ# support after media DET */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_CLKREQ, &scratch);
+ if (ret)
+ return ret;
+ scratch |= 0x20;
+ pci_write_config_byte(chip->pdev, O2_SD_CLKREQ, scratch);
+
+ /* Choose capabilities, enable SDMA. We have to write 0x01
+ * to the capabilities register first to unlock it.
+ */
+ ret = pci_read_config_byte(chip->pdev, O2_SD_CAPS, &scratch);
+ if (ret)
+ return ret;
+ scratch |= 0x01;
+ pci_write_config_byte(chip->pdev, O2_SD_CAPS, scratch);
+ pci_write_config_byte(chip->pdev, O2_SD_CAPS, 0x73);
+
+ /* Disable ADMA1/2 */
+ pci_write_config_byte(chip->pdev, O2_SD_ADMA1, 0x39);
+ pci_write_config_byte(chip->pdev, O2_SD_ADMA2, 0x08);
+
+ /* Disable the infinite transfer mode */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_INF_MOD, &scratch);
+ if (ret)
+ return ret;
+ scratch |= 0x08;
+ pci_write_config_byte(chip->pdev, O2_SD_INF_MOD, scratch);
+
+ /* Lock WP */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch);
+ if (ret)
+ return ret;
+ scratch |= 0x80;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+ break;
+ case PCI_DEVICE_ID_O2_SDS0:
+ case PCI_DEVICE_ID_O2_SDS1:
+ case PCI_DEVICE_ID_O2_FUJIN2:
+ /* UnLock WP */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch);
+ if (ret)
+ return ret;
+
+ scratch &= 0x7f;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+
+ /* DevId=8520 subId= 0x11 or 0x12 Type Chip support */
+ if (chip->pdev->device == PCI_DEVICE_ID_O2_FUJIN2) {
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_FUNC_REG0,
+ &scratch_32);
+ if (ret)
+ return ret;
+ scratch_32 = ((scratch_32 & 0xFF000000) >> 24);
+
+ /* Check Whether subId is 0x11 or 0x12 */
+ if ((scratch_32 == 0x11) || (scratch_32 == 0x12)) {
+ scratch_32 = 0x25100000;
+
+ o2_pci_set_baseclk(chip, scratch_32);
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_FUNC_REG4,
+ &scratch_32);
+ if (ret)
+ return ret;
+
+ /* Enable Base Clk setting change */
+ scratch_32 |= O2_SD_FREG4_ENABLE_CLK_SET;
+ pci_write_config_dword(chip->pdev,
+ O2_SD_FUNC_REG4,
+ scratch_32);
+
+ /* Set Tuning Window to 4 */
+ pci_write_config_byte(chip->pdev,
+ O2_SD_TUNING_CTRL, 0x44);
+
+ break;
+ }
+ }
+
+ /* Enable 8520 led function */
+ o2_pci_led_enable(chip);
+
+ /* Set timeout CLK */
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_CLK_SETTING, &scratch_32);
+ if (ret)
+ return ret;
+
+ scratch_32 &= ~(0xFF00);
+ scratch_32 |= 0x07E0C800;
+ pci_write_config_dword(chip->pdev,
+ O2_SD_CLK_SETTING, scratch_32);
+
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_CLKREQ, &scratch_32);
+ if (ret)
+ return ret;
+ scratch_32 |= 0x3;
+ pci_write_config_dword(chip->pdev, O2_SD_CLKREQ, scratch_32);
+
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, &scratch_32);
+ if (ret)
+ return ret;
+
+ scratch_32 &= ~(0x1F3F070E);
+ scratch_32 |= 0x18270106;
+ pci_write_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, scratch_32);
+
+ /* Disable UHS1 funciton */
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_CAP_REG2, &scratch_32);
+ if (ret)
+ return ret;
+ scratch_32 &= ~(0xE0);
+ pci_write_config_dword(chip->pdev,
+ O2_SD_CAP_REG2, scratch_32);
+
+ if (chip->pdev->device == PCI_DEVICE_ID_O2_FUJIN2)
+ sdhci_pci_o2_fujin2_pci_init(chip);
+
+ /* Lock WP */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch);
+ if (ret)
+ return ret;
+ scratch |= 0x80;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+ break;
+ case PCI_DEVICE_ID_O2_SEABIRD0:
+ case PCI_DEVICE_ID_O2_SEABIRD1:
+ /* UnLock WP */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch);
+ if (ret)
+ return ret;
+
+ scratch &= 0x7f;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, &scratch_32);
+ if (ret)
+ return ret;
+
+ if ((scratch_32 & 0xff000000) == 0x01000000) {
+ scratch_32 &= 0x0000FFFF;
+ scratch_32 |= 0x1F340000;
+
+ pci_write_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, scratch_32);
+ } else {
+ scratch_32 &= 0x0000FFFF;
+ scratch_32 |= 0x25100000;
+
+ pci_write_config_dword(chip->pdev,
+ O2_SD_PLL_SETTING, scratch_32);
+
+ ret = pci_read_config_dword(chip->pdev,
+ O2_SD_FUNC_REG4,
+ &scratch_32);
+ if (ret)
+ return ret;
+ scratch_32 |= (1 << 22);
+ pci_write_config_dword(chip->pdev,
+ O2_SD_FUNC_REG4, scratch_32);
+ }
+
+ /* Set Tuning Windows to 5 */
+ pci_write_config_byte(chip->pdev,
+ O2_SD_TUNING_CTRL, 0x55);
+ //Adjust 1st and 2nd CD debounce time
+ pci_read_config_dword(chip->pdev, O2_SD_MISC_CTRL2, &scratch_32);
+ scratch_32 &= 0xFFE7FFFF;
+ scratch_32 |= 0x00180000;
+ pci_write_config_dword(chip->pdev, O2_SD_MISC_CTRL2, scratch_32);
+ pci_write_config_dword(chip->pdev, O2_SD_DETECT_SETTING, 1);
+ /* Lock WP */
+ ret = pci_read_config_byte(chip->pdev,
+ O2_SD_LOCK_WP, &scratch);
+ if (ret)
+ return ret;
+ scratch |= 0x80;
+ pci_write_config_byte(chip->pdev, O2_SD_LOCK_WP, scratch);
+ break;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int sdhci_pci_o2_resume(struct sdhci_pci_chip *chip)
+{
+ sdhci_pci_o2_probe(chip);
+ return sdhci_pci_resume_host(chip);
+}
+#endif
+
+static const struct sdhci_ops sdhci_pci_o2_ops = {
+ .set_clock = sdhci_pci_o2_set_clock,
+ .enable_dma = sdhci_pci_enable_dma,
+ .set_bus_width = sdhci_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+const struct sdhci_pci_fixes sdhci_o2 = {
+ .probe = sdhci_pci_o2_probe,
+ .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD,
+ .probe_slot = sdhci_pci_o2_probe_slot,
+#ifdef CONFIG_PM_SLEEP
+ .resume = sdhci_pci_o2_resume,
+#endif
+ .ops = &sdhci_pci_o2_ops,
+ .priv_size = sizeof(struct o2_host),
+};