1a61127c2SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2c4e05037SAdrian Hunter /* 3c4e05037SAdrian Hunter * Secure Digital Host Controller Interface ACPI driver. 4c4e05037SAdrian Hunter * 5c4e05037SAdrian Hunter * Copyright (c) 2012, Intel Corporation. 6c4e05037SAdrian Hunter */ 7c4e05037SAdrian Hunter 8c4e05037SAdrian Hunter #include <linux/init.h> 9c4e05037SAdrian Hunter #include <linux/export.h> 10c4e05037SAdrian Hunter #include <linux/module.h> 11c4e05037SAdrian Hunter #include <linux/device.h> 12c4e05037SAdrian Hunter #include <linux/platform_device.h> 13c4e05037SAdrian Hunter #include <linux/ioport.h> 14c4e05037SAdrian Hunter #include <linux/io.h> 15c4e05037SAdrian Hunter #include <linux/dma-mapping.h> 16c4e05037SAdrian Hunter #include <linux/compiler.h> 17c4e05037SAdrian Hunter #include <linux/stddef.h> 18c4e05037SAdrian Hunter #include <linux/bitops.h> 19c4e05037SAdrian Hunter #include <linux/types.h> 20c4e05037SAdrian Hunter #include <linux/err.h> 21c4e05037SAdrian Hunter #include <linux/interrupt.h> 22c4e05037SAdrian Hunter #include <linux/acpi.h> 23c4e05037SAdrian Hunter #include <linux/pm.h> 24c4e05037SAdrian Hunter #include <linux/pm_runtime.h> 25b04fa064SAdrian Hunter #include <linux/delay.h> 2684d49b3dSHans de Goede #include <linux/dmi.h> 27c4e05037SAdrian Hunter 28c4e05037SAdrian Hunter #include <linux/mmc/host.h> 29c4e05037SAdrian Hunter #include <linux/mmc/pm.h> 304fd4409cSAdrian Hunter #include <linux/mmc/slot-gpio.h> 31c4e05037SAdrian Hunter 326e1c7d61SAdrian Hunter #ifdef CONFIG_X86 336e1c7d61SAdrian Hunter #include <asm/cpu_device_id.h> 348ba4cb53SDave Hansen #include <asm/intel-family.h> 356e1c7d61SAdrian Hunter #include <asm/iosf_mbi.h> 3617753d16SAdrian Hunter #include <linux/pci.h> 376e1c7d61SAdrian Hunter #endif 386e1c7d61SAdrian Hunter 39c4e05037SAdrian Hunter #include "sdhci.h" 40c4e05037SAdrian Hunter 41c4e05037SAdrian Hunter enum { 42c4e05037SAdrian Hunter SDHCI_ACPI_SD_CD = BIT(0), 43c4e05037SAdrian Hunter SDHCI_ACPI_RUNTIME_PM = BIT(1), 444fd4409cSAdrian Hunter SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL = BIT(2), 45c4e05037SAdrian Hunter }; 46c4e05037SAdrian Hunter 47c4e05037SAdrian Hunter struct sdhci_acpi_chip { 48c4e05037SAdrian Hunter const struct sdhci_ops *ops; 49c4e05037SAdrian Hunter unsigned int quirks; 50c4e05037SAdrian Hunter unsigned int quirks2; 51c4e05037SAdrian Hunter unsigned long caps; 52c4e05037SAdrian Hunter unsigned int caps2; 53c4e05037SAdrian Hunter mmc_pm_flag_t pm_caps; 54c4e05037SAdrian Hunter }; 55c4e05037SAdrian Hunter 56c4e05037SAdrian Hunter struct sdhci_acpi_slot { 57c4e05037SAdrian Hunter const struct sdhci_acpi_chip *chip; 58c4e05037SAdrian Hunter unsigned int quirks; 59c4e05037SAdrian Hunter unsigned int quirks2; 60c4e05037SAdrian Hunter unsigned long caps; 61c4e05037SAdrian Hunter unsigned int caps2; 62c4e05037SAdrian Hunter mmc_pm_flag_t pm_caps; 63c4e05037SAdrian Hunter unsigned int flags; 64f07b7952SAdrian Hunter size_t priv_size; 654f3cde3aSAndy Shevchenko int (*probe_slot)(struct platform_device *, struct acpi_device *); 66578b36b6SGao, Yunpeng int (*remove_slot)(struct platform_device *); 67c7eabbeeSWang Dongsheng int (*free_slot)(struct platform_device *pdev); 680cc1a0f4SAdrian Hunter int (*setup_host)(struct platform_device *pdev); 69c4e05037SAdrian Hunter }; 70c4e05037SAdrian Hunter 71c4e05037SAdrian Hunter struct sdhci_acpi_host { 72c4e05037SAdrian Hunter struct sdhci_host *host; 73c4e05037SAdrian Hunter const struct sdhci_acpi_slot *slot; 74c4e05037SAdrian Hunter struct platform_device *pdev; 75c4e05037SAdrian Hunter bool use_runtime_pm; 7684d49b3dSHans de Goede bool is_intel; 7784d49b3dSHans de Goede bool reset_signal_volt_on_suspend; 781a91a36aSGustavo A. R. Silva unsigned long private[] ____cacheline_aligned; 79c4e05037SAdrian Hunter }; 80c4e05037SAdrian Hunter 8184d49b3dSHans de Goede enum { 8284d49b3dSHans de Goede DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP = BIT(0), 833397b251SHans de Goede DMI_QUIRK_SD_NO_WRITE_PROTECT = BIT(1), 8484d49b3dSHans de Goede }; 8584d49b3dSHans de Goede 86f07b7952SAdrian Hunter static inline void *sdhci_acpi_priv(struct sdhci_acpi_host *c) 87f07b7952SAdrian Hunter { 88f07b7952SAdrian Hunter return (void *)c->private; 89f07b7952SAdrian Hunter } 90f07b7952SAdrian Hunter 91c4e05037SAdrian Hunter static inline bool sdhci_acpi_flag(struct sdhci_acpi_host *c, unsigned int flag) 92c4e05037SAdrian Hunter { 93c4e05037SAdrian Hunter return c->slot && (c->slot->flags & flag); 94c4e05037SAdrian Hunter } 95c4e05037SAdrian Hunter 960acccf41SAdrian Hunter #define INTEL_DSM_HS_CAPS_SDR25 BIT(0) 970acccf41SAdrian Hunter #define INTEL_DSM_HS_CAPS_DDR50 BIT(1) 980acccf41SAdrian Hunter #define INTEL_DSM_HS_CAPS_SDR50 BIT(2) 990acccf41SAdrian Hunter #define INTEL_DSM_HS_CAPS_SDR104 BIT(3) 1000acccf41SAdrian Hunter 1011c451c13SAdrian Hunter enum { 1021c451c13SAdrian Hunter INTEL_DSM_FNS = 0, 1031c451c13SAdrian Hunter INTEL_DSM_V18_SWITCH = 3, 1041c451c13SAdrian Hunter INTEL_DSM_V33_SWITCH = 4, 1050acccf41SAdrian Hunter INTEL_DSM_HS_CAPS = 8, 1061c451c13SAdrian Hunter }; 1071c451c13SAdrian Hunter 1081c451c13SAdrian Hunter struct intel_host { 1091c451c13SAdrian Hunter u32 dsm_fns; 1100acccf41SAdrian Hunter u32 hs_caps; 1111c451c13SAdrian Hunter }; 1121c451c13SAdrian Hunter 1131c451c13SAdrian Hunter static const guid_t intel_dsm_guid = 1141c451c13SAdrian Hunter GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F, 1151c451c13SAdrian Hunter 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61); 1161c451c13SAdrian Hunter 1171c451c13SAdrian Hunter static int __intel_dsm(struct intel_host *intel_host, struct device *dev, 1181c451c13SAdrian Hunter unsigned int fn, u32 *result) 1191c451c13SAdrian Hunter { 1201c451c13SAdrian Hunter union acpi_object *obj; 1211c451c13SAdrian Hunter int err = 0; 1221c451c13SAdrian Hunter 1231c451c13SAdrian Hunter obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL); 1241c451c13SAdrian Hunter if (!obj) 1251c451c13SAdrian Hunter return -EOPNOTSUPP; 1261c451c13SAdrian Hunter 1271c451c13SAdrian Hunter if (obj->type == ACPI_TYPE_INTEGER) { 1281c451c13SAdrian Hunter *result = obj->integer.value; 1291c451c13SAdrian Hunter } else if (obj->type == ACPI_TYPE_BUFFER && obj->buffer.length > 0) { 1301c451c13SAdrian Hunter size_t len = min_t(size_t, obj->buffer.length, 4); 1311c451c13SAdrian Hunter 1321c451c13SAdrian Hunter *result = 0; 1331c451c13SAdrian Hunter memcpy(result, obj->buffer.pointer, len); 1341c451c13SAdrian Hunter } else { 1351c451c13SAdrian Hunter dev_err(dev, "%s DSM fn %u obj->type %d obj->buffer.length %d\n", 1361c451c13SAdrian Hunter __func__, fn, obj->type, obj->buffer.length); 1371c451c13SAdrian Hunter err = -EINVAL; 1381c451c13SAdrian Hunter } 1391c451c13SAdrian Hunter 1401c451c13SAdrian Hunter ACPI_FREE(obj); 1411c451c13SAdrian Hunter 1421c451c13SAdrian Hunter return err; 1431c451c13SAdrian Hunter } 1441c451c13SAdrian Hunter 1451c451c13SAdrian Hunter static int intel_dsm(struct intel_host *intel_host, struct device *dev, 1461c451c13SAdrian Hunter unsigned int fn, u32 *result) 1471c451c13SAdrian Hunter { 1481c451c13SAdrian Hunter if (fn > 31 || !(intel_host->dsm_fns & (1 << fn))) 1491c451c13SAdrian Hunter return -EOPNOTSUPP; 1501c451c13SAdrian Hunter 1511c451c13SAdrian Hunter return __intel_dsm(intel_host, dev, fn, result); 1521c451c13SAdrian Hunter } 1531c451c13SAdrian Hunter 1541c451c13SAdrian Hunter static void intel_dsm_init(struct intel_host *intel_host, struct device *dev, 1551c451c13SAdrian Hunter struct mmc_host *mmc) 1561c451c13SAdrian Hunter { 1571c451c13SAdrian Hunter int err; 1581c451c13SAdrian Hunter 1590acccf41SAdrian Hunter intel_host->hs_caps = ~0; 1600acccf41SAdrian Hunter 1611c451c13SAdrian Hunter err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns); 1621c451c13SAdrian Hunter if (err) { 1631c451c13SAdrian Hunter pr_debug("%s: DSM not supported, error %d\n", 1641c451c13SAdrian Hunter mmc_hostname(mmc), err); 1651c451c13SAdrian Hunter return; 1661c451c13SAdrian Hunter } 1671c451c13SAdrian Hunter 1681c451c13SAdrian Hunter pr_debug("%s: DSM function mask %#x\n", 1691c451c13SAdrian Hunter mmc_hostname(mmc), intel_host->dsm_fns); 1700acccf41SAdrian Hunter 1710acccf41SAdrian Hunter intel_dsm(intel_host, dev, INTEL_DSM_HS_CAPS, &intel_host->hs_caps); 1721c451c13SAdrian Hunter } 1731c451c13SAdrian Hunter 1741c451c13SAdrian Hunter static int intel_start_signal_voltage_switch(struct mmc_host *mmc, 1751c451c13SAdrian Hunter struct mmc_ios *ios) 1761c451c13SAdrian Hunter { 1771c451c13SAdrian Hunter struct device *dev = mmc_dev(mmc); 1781c451c13SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 1791c451c13SAdrian Hunter struct intel_host *intel_host = sdhci_acpi_priv(c); 1801c451c13SAdrian Hunter unsigned int fn; 1811c451c13SAdrian Hunter u32 result = 0; 1821c451c13SAdrian Hunter int err; 1831c451c13SAdrian Hunter 1841c451c13SAdrian Hunter err = sdhci_start_signal_voltage_switch(mmc, ios); 1851c451c13SAdrian Hunter if (err) 1861c451c13SAdrian Hunter return err; 1871c451c13SAdrian Hunter 1881c451c13SAdrian Hunter switch (ios->signal_voltage) { 1891c451c13SAdrian Hunter case MMC_SIGNAL_VOLTAGE_330: 1901c451c13SAdrian Hunter fn = INTEL_DSM_V33_SWITCH; 1911c451c13SAdrian Hunter break; 1921c451c13SAdrian Hunter case MMC_SIGNAL_VOLTAGE_180: 1931c451c13SAdrian Hunter fn = INTEL_DSM_V18_SWITCH; 1941c451c13SAdrian Hunter break; 1951c451c13SAdrian Hunter default: 1961c451c13SAdrian Hunter return 0; 1971c451c13SAdrian Hunter } 1981c451c13SAdrian Hunter 1991c451c13SAdrian Hunter err = intel_dsm(intel_host, dev, fn, &result); 2001c451c13SAdrian Hunter pr_debug("%s: %s DSM fn %u error %d result %u\n", 2011c451c13SAdrian Hunter mmc_hostname(mmc), __func__, fn, err, result); 2021c451c13SAdrian Hunter 2031c451c13SAdrian Hunter return 0; 2041c451c13SAdrian Hunter } 2051c451c13SAdrian Hunter 206b04fa064SAdrian Hunter static void sdhci_acpi_int_hw_reset(struct sdhci_host *host) 207b04fa064SAdrian Hunter { 208b04fa064SAdrian Hunter u8 reg; 209b04fa064SAdrian Hunter 210b04fa064SAdrian Hunter reg = sdhci_readb(host, SDHCI_POWER_CONTROL); 211b04fa064SAdrian Hunter reg |= 0x10; 212b04fa064SAdrian Hunter sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 213b04fa064SAdrian Hunter /* For eMMC, minimum is 1us but give it 9us for good measure */ 214b04fa064SAdrian Hunter udelay(9); 215b04fa064SAdrian Hunter reg &= ~0x10; 216b04fa064SAdrian Hunter sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 217b04fa064SAdrian Hunter /* For eMMC, minimum is 200us but give it 300us for good measure */ 218b04fa064SAdrian Hunter usleep_range(300, 1000); 219b04fa064SAdrian Hunter } 220b04fa064SAdrian Hunter 221c4e05037SAdrian Hunter static const struct sdhci_ops sdhci_acpi_ops_dflt = { 2221771059cSRussell King .set_clock = sdhci_set_clock, 2232317f56cSRussell King .set_bus_width = sdhci_set_bus_width, 22403231f9bSRussell King .reset = sdhci_reset, 22596d7b78cSRussell King .set_uhs_signaling = sdhci_set_uhs_signaling, 226c4e05037SAdrian Hunter }; 227c4e05037SAdrian Hunter 228b04fa064SAdrian Hunter static const struct sdhci_ops sdhci_acpi_ops_int = { 2291771059cSRussell King .set_clock = sdhci_set_clock, 2302317f56cSRussell King .set_bus_width = sdhci_set_bus_width, 23103231f9bSRussell King .reset = sdhci_reset, 23296d7b78cSRussell King .set_uhs_signaling = sdhci_set_uhs_signaling, 233b04fa064SAdrian Hunter .hw_reset = sdhci_acpi_int_hw_reset, 234b04fa064SAdrian Hunter }; 235b04fa064SAdrian Hunter 236b04fa064SAdrian Hunter static const struct sdhci_acpi_chip sdhci_acpi_chip_int = { 237b04fa064SAdrian Hunter .ops = &sdhci_acpi_ops_int, 238b04fa064SAdrian Hunter }; 239b04fa064SAdrian Hunter 2406e1c7d61SAdrian Hunter #ifdef CONFIG_X86 2416e1c7d61SAdrian Hunter 2426e1c7d61SAdrian Hunter static bool sdhci_acpi_byt(void) 2436e1c7d61SAdrian Hunter { 2446e1c7d61SAdrian Hunter static const struct x86_cpu_id byt[] = { 2451e41eb15SThomas Gleixner X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, NULL), 2466e1c7d61SAdrian Hunter {} 2476e1c7d61SAdrian Hunter }; 2486e1c7d61SAdrian Hunter 2496e1c7d61SAdrian Hunter return x86_match_cpu(byt); 2506e1c7d61SAdrian Hunter } 2516e1c7d61SAdrian Hunter 25217753d16SAdrian Hunter static bool sdhci_acpi_cht(void) 25317753d16SAdrian Hunter { 25417753d16SAdrian Hunter static const struct x86_cpu_id cht[] = { 2551e41eb15SThomas Gleixner X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, NULL), 25617753d16SAdrian Hunter {} 25717753d16SAdrian Hunter }; 25817753d16SAdrian Hunter 25917753d16SAdrian Hunter return x86_match_cpu(cht); 26017753d16SAdrian Hunter } 26117753d16SAdrian Hunter 2626e1c7d61SAdrian Hunter #define BYT_IOSF_SCCEP 0x63 2636e1c7d61SAdrian Hunter #define BYT_IOSF_OCP_NETCTRL0 0x1078 2646e1c7d61SAdrian Hunter #define BYT_IOSF_OCP_TIMEOUT_BASE GENMASK(10, 8) 2656e1c7d61SAdrian Hunter 2666e1c7d61SAdrian Hunter static void sdhci_acpi_byt_setting(struct device *dev) 2676e1c7d61SAdrian Hunter { 2686e1c7d61SAdrian Hunter u32 val = 0; 2696e1c7d61SAdrian Hunter 2706e1c7d61SAdrian Hunter if (!sdhci_acpi_byt()) 2716e1c7d61SAdrian Hunter return; 2726e1c7d61SAdrian Hunter 2736e1c7d61SAdrian Hunter if (iosf_mbi_read(BYT_IOSF_SCCEP, MBI_CR_READ, BYT_IOSF_OCP_NETCTRL0, 2746e1c7d61SAdrian Hunter &val)) { 2756e1c7d61SAdrian Hunter dev_err(dev, "%s read error\n", __func__); 2766e1c7d61SAdrian Hunter return; 2776e1c7d61SAdrian Hunter } 2786e1c7d61SAdrian Hunter 2796e1c7d61SAdrian Hunter if (!(val & BYT_IOSF_OCP_TIMEOUT_BASE)) 2806e1c7d61SAdrian Hunter return; 2816e1c7d61SAdrian Hunter 2826e1c7d61SAdrian Hunter val &= ~BYT_IOSF_OCP_TIMEOUT_BASE; 2836e1c7d61SAdrian Hunter 2846e1c7d61SAdrian Hunter if (iosf_mbi_write(BYT_IOSF_SCCEP, MBI_CR_WRITE, BYT_IOSF_OCP_NETCTRL0, 2856e1c7d61SAdrian Hunter val)) { 2866e1c7d61SAdrian Hunter dev_err(dev, "%s write error\n", __func__); 2876e1c7d61SAdrian Hunter return; 2886e1c7d61SAdrian Hunter } 2896e1c7d61SAdrian Hunter 2906e1c7d61SAdrian Hunter dev_dbg(dev, "%s completed\n", __func__); 2916e1c7d61SAdrian Hunter } 2926e1c7d61SAdrian Hunter 2936e1c7d61SAdrian Hunter static bool sdhci_acpi_byt_defer(struct device *dev) 2946e1c7d61SAdrian Hunter { 2956e1c7d61SAdrian Hunter if (!sdhci_acpi_byt()) 2966e1c7d61SAdrian Hunter return false; 2976e1c7d61SAdrian Hunter 2986e1c7d61SAdrian Hunter if (!iosf_mbi_available()) 2996e1c7d61SAdrian Hunter return true; 3006e1c7d61SAdrian Hunter 3016e1c7d61SAdrian Hunter sdhci_acpi_byt_setting(dev); 3026e1c7d61SAdrian Hunter 3036e1c7d61SAdrian Hunter return false; 3046e1c7d61SAdrian Hunter } 3056e1c7d61SAdrian Hunter 30617753d16SAdrian Hunter static bool sdhci_acpi_cht_pci_wifi(unsigned int vendor, unsigned int device, 30717753d16SAdrian Hunter unsigned int slot, unsigned int parent_slot) 30817753d16SAdrian Hunter { 30917753d16SAdrian Hunter struct pci_dev *dev, *parent, *from = NULL; 31017753d16SAdrian Hunter 31117753d16SAdrian Hunter while (1) { 31217753d16SAdrian Hunter dev = pci_get_device(vendor, device, from); 31317753d16SAdrian Hunter pci_dev_put(from); 31417753d16SAdrian Hunter if (!dev) 31517753d16SAdrian Hunter break; 31617753d16SAdrian Hunter parent = pci_upstream_bridge(dev); 31717753d16SAdrian Hunter if (ACPI_COMPANION(&dev->dev) && PCI_SLOT(dev->devfn) == slot && 31817753d16SAdrian Hunter parent && PCI_SLOT(parent->devfn) == parent_slot && 31917753d16SAdrian Hunter !pci_upstream_bridge(parent)) { 32017753d16SAdrian Hunter pci_dev_put(dev); 32117753d16SAdrian Hunter return true; 32217753d16SAdrian Hunter } 32317753d16SAdrian Hunter from = dev; 32417753d16SAdrian Hunter } 32517753d16SAdrian Hunter 32617753d16SAdrian Hunter return false; 32717753d16SAdrian Hunter } 32817753d16SAdrian Hunter 32917753d16SAdrian Hunter /* 33017753d16SAdrian Hunter * GPDwin uses PCI wifi which conflicts with SDIO's use of 33117753d16SAdrian Hunter * acpi_device_fix_up_power() on child device nodes. Identifying GPDwin is 33217753d16SAdrian Hunter * problematic, but since SDIO is only used for wifi, the presence of the PCI 33317753d16SAdrian Hunter * wifi card in the expected slot with an ACPI companion node, is used to 33417753d16SAdrian Hunter * indicate that acpi_device_fix_up_power() should be avoided. 33517753d16SAdrian Hunter */ 3364f3cde3aSAndy Shevchenko static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev) 33717753d16SAdrian Hunter { 33817753d16SAdrian Hunter return sdhci_acpi_cht() && 3394f3cde3aSAndy Shevchenko acpi_dev_hid_uid_match(adev, "80860F14", "2") && 34017753d16SAdrian Hunter sdhci_acpi_cht_pci_wifi(0x14e4, 0x43ec, 0, 28); 34117753d16SAdrian Hunter } 34217753d16SAdrian Hunter 3436e1c7d61SAdrian Hunter #else 3446e1c7d61SAdrian Hunter 3456e1c7d61SAdrian Hunter static inline void sdhci_acpi_byt_setting(struct device *dev) 3466e1c7d61SAdrian Hunter { 3476e1c7d61SAdrian Hunter } 3486e1c7d61SAdrian Hunter 3496e1c7d61SAdrian Hunter static inline bool sdhci_acpi_byt_defer(struct device *dev) 3506e1c7d61SAdrian Hunter { 3516e1c7d61SAdrian Hunter return false; 3526e1c7d61SAdrian Hunter } 3536e1c7d61SAdrian Hunter 3544f3cde3aSAndy Shevchenko static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev) 35517753d16SAdrian Hunter { 35617753d16SAdrian Hunter return false; 35717753d16SAdrian Hunter } 35817753d16SAdrian Hunter 3596e1c7d61SAdrian Hunter #endif 3606e1c7d61SAdrian Hunter 3616a645dd8SAdrian Hunter static int bxt_get_cd(struct mmc_host *mmc) 3626a645dd8SAdrian Hunter { 3636a645dd8SAdrian Hunter int gpio_cd = mmc_gpio_get_cd(mmc); 3646a645dd8SAdrian Hunter struct sdhci_host *host = mmc_priv(mmc); 3656a645dd8SAdrian Hunter unsigned long flags; 3666a645dd8SAdrian Hunter int ret = 0; 3676a645dd8SAdrian Hunter 3686a645dd8SAdrian Hunter if (!gpio_cd) 3696a645dd8SAdrian Hunter return 0; 3706a645dd8SAdrian Hunter 3716a645dd8SAdrian Hunter spin_lock_irqsave(&host->lock, flags); 3726a645dd8SAdrian Hunter 3736a645dd8SAdrian Hunter if (host->flags & SDHCI_DEVICE_DEAD) 3746a645dd8SAdrian Hunter goto out; 3756a645dd8SAdrian Hunter 3766a645dd8SAdrian Hunter ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); 3776a645dd8SAdrian Hunter out: 3786a645dd8SAdrian Hunter spin_unlock_irqrestore(&host->lock, flags); 3796a645dd8SAdrian Hunter 3806a645dd8SAdrian Hunter return ret; 3816a645dd8SAdrian Hunter } 3826a645dd8SAdrian Hunter 3834f3cde3aSAndy Shevchenko static int intel_probe_slot(struct platform_device *pdev, struct acpi_device *adev) 384578b36b6SGao, Yunpeng { 385578b36b6SGao, Yunpeng struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 3861c451c13SAdrian Hunter struct intel_host *intel_host = sdhci_acpi_priv(c); 387159cd328SAdrian Hunter struct sdhci_host *host = c->host; 388578b36b6SGao, Yunpeng 3894f3cde3aSAndy Shevchenko if (acpi_dev_hid_uid_match(adev, "80860F14", "1") && 3908024379eSAdrian Hunter sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 && 3918024379eSAdrian Hunter sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807) 3928024379eSAdrian Hunter host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */ 3938024379eSAdrian Hunter 3944f3cde3aSAndy Shevchenko if (acpi_dev_hid_uid_match(adev, "80865ACA", NULL)) 3956a645dd8SAdrian Hunter host->mmc_host_ops.get_cd = bxt_get_cd; 3966a645dd8SAdrian Hunter 3971c451c13SAdrian Hunter intel_dsm_init(intel_host, &pdev->dev, host->mmc); 3981c451c13SAdrian Hunter 3991c451c13SAdrian Hunter host->mmc_host_ops.start_signal_voltage_switch = 4001c451c13SAdrian Hunter intel_start_signal_voltage_switch; 4011c451c13SAdrian Hunter 40284d49b3dSHans de Goede c->is_intel = true; 40384d49b3dSHans de Goede 404578b36b6SGao, Yunpeng return 0; 405578b36b6SGao, Yunpeng } 406578b36b6SGao, Yunpeng 4070acccf41SAdrian Hunter static int intel_setup_host(struct platform_device *pdev) 4080acccf41SAdrian Hunter { 4090acccf41SAdrian Hunter struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 4100acccf41SAdrian Hunter struct intel_host *intel_host = sdhci_acpi_priv(c); 4110acccf41SAdrian Hunter 4120acccf41SAdrian Hunter if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR25)) 4130acccf41SAdrian Hunter c->host->mmc->caps &= ~MMC_CAP_UHS_SDR25; 4140acccf41SAdrian Hunter 4150acccf41SAdrian Hunter if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR50)) 4160acccf41SAdrian Hunter c->host->mmc->caps &= ~MMC_CAP_UHS_SDR50; 4170acccf41SAdrian Hunter 4180acccf41SAdrian Hunter if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_DDR50)) 4190acccf41SAdrian Hunter c->host->mmc->caps &= ~MMC_CAP_UHS_DDR50; 4200acccf41SAdrian Hunter 4210acccf41SAdrian Hunter if (!(intel_host->hs_caps & INTEL_DSM_HS_CAPS_SDR104)) 4220acccf41SAdrian Hunter c->host->mmc->caps &= ~MMC_CAP_UHS_SDR104; 4230acccf41SAdrian Hunter 4240acccf41SAdrian Hunter return 0; 4250acccf41SAdrian Hunter } 4260acccf41SAdrian Hunter 42707a58883SAdrian Hunter static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { 428b04fa064SAdrian Hunter .chip = &sdhci_acpi_chip_int, 429f25c3372SMaurice Petallo .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | 4309d65cb88SAdrian Hunter MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR | 431c80f275fSAdrian Hunter MMC_CAP_CMD_DURING_TFR | MMC_CAP_WAIT_WHILE_BUSY, 43207a58883SAdrian Hunter .flags = SDHCI_ACPI_RUNTIME_PM, 433197ce1a5SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 434197ce1a5SAdrian Hunter SDHCI_QUIRK_NO_LED, 435e839b134SAdrian Hunter .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | 436e839b134SAdrian Hunter SDHCI_QUIRK2_STOP_WITH_TC | 437e839b134SAdrian Hunter SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400, 438159cd328SAdrian Hunter .probe_slot = intel_probe_slot, 4390acccf41SAdrian Hunter .setup_host = intel_setup_host, 4401c451c13SAdrian Hunter .priv_size = sizeof(struct intel_host), 44107a58883SAdrian Hunter }; 44207a58883SAdrian Hunter 443e5571397SAdrian Hunter static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = { 444e1f5633aSAdrian Hunter .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION | 445197ce1a5SAdrian Hunter SDHCI_QUIRK_NO_LED | 446e1f5633aSAdrian Hunter SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 447e5571397SAdrian Hunter .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON, 4489d65cb88SAdrian Hunter .caps = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD | 449265984b3SAdrian Hunter MMC_CAP_WAIT_WHILE_BUSY, 450e5571397SAdrian Hunter .flags = SDHCI_ACPI_RUNTIME_PM, 451e5571397SAdrian Hunter .pm_caps = MMC_PM_KEEP_POWER, 452159cd328SAdrian Hunter .probe_slot = intel_probe_slot, 4530acccf41SAdrian Hunter .setup_host = intel_setup_host, 4541c451c13SAdrian Hunter .priv_size = sizeof(struct intel_host), 455e5571397SAdrian Hunter }; 456e5571397SAdrian Hunter 45707a58883SAdrian Hunter static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = { 4584fd4409cSAdrian Hunter .flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL | 4594fd4409cSAdrian Hunter SDHCI_ACPI_RUNTIME_PM, 460197ce1a5SAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | 461197ce1a5SAdrian Hunter SDHCI_QUIRK_NO_LED, 462934e31b9SAdrian Hunter .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON | 463934e31b9SAdrian Hunter SDHCI_QUIRK2_STOP_WITH_TC, 464d3e97407SAzhar Shaikh .caps = MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_AGGRESSIVE_PM, 465159cd328SAdrian Hunter .probe_slot = intel_probe_slot, 4660acccf41SAdrian Hunter .setup_host = intel_setup_host, 4671c451c13SAdrian Hunter .priv_size = sizeof(struct intel_host), 46807a58883SAdrian Hunter }; 46907a58883SAdrian Hunter 47096ccb858SWang Dongsheng #define VENDOR_SPECIFIC_PWRCTL_CLEAR_REG 0x1a8 47196ccb858SWang Dongsheng #define VENDOR_SPECIFIC_PWRCTL_CTL_REG 0x1ac 47296ccb858SWang Dongsheng static irqreturn_t sdhci_acpi_qcom_handler(int irq, void *ptr) 47396ccb858SWang Dongsheng { 47496ccb858SWang Dongsheng struct sdhci_host *host = ptr; 47596ccb858SWang Dongsheng 47696ccb858SWang Dongsheng sdhci_writel(host, 0x3, VENDOR_SPECIFIC_PWRCTL_CLEAR_REG); 47796ccb858SWang Dongsheng sdhci_writel(host, 0x1, VENDOR_SPECIFIC_PWRCTL_CTL_REG); 47896ccb858SWang Dongsheng 47996ccb858SWang Dongsheng return IRQ_HANDLED; 48096ccb858SWang Dongsheng } 48196ccb858SWang Dongsheng 4824f3cde3aSAndy Shevchenko static int qcom_probe_slot(struct platform_device *pdev, struct acpi_device *adev) 48396ccb858SWang Dongsheng { 48496ccb858SWang Dongsheng struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 48596ccb858SWang Dongsheng struct sdhci_host *host = c->host; 48696ccb858SWang Dongsheng int *irq = sdhci_acpi_priv(c); 48796ccb858SWang Dongsheng 48896ccb858SWang Dongsheng *irq = -EINVAL; 48996ccb858SWang Dongsheng 4904f3cde3aSAndy Shevchenko if (!acpi_dev_hid_uid_match(adev, "QCOM8051", NULL)) 49196ccb858SWang Dongsheng return 0; 49296ccb858SWang Dongsheng 49396ccb858SWang Dongsheng *irq = platform_get_irq(pdev, 1); 49496ccb858SWang Dongsheng if (*irq < 0) 49596ccb858SWang Dongsheng return 0; 49696ccb858SWang Dongsheng 49796ccb858SWang Dongsheng return request_threaded_irq(*irq, NULL, sdhci_acpi_qcom_handler, 49896ccb858SWang Dongsheng IRQF_ONESHOT | IRQF_TRIGGER_HIGH, 49996ccb858SWang Dongsheng "sdhci_qcom", host); 50096ccb858SWang Dongsheng } 50196ccb858SWang Dongsheng 50296ccb858SWang Dongsheng static int qcom_free_slot(struct platform_device *pdev) 50396ccb858SWang Dongsheng { 50496ccb858SWang Dongsheng struct device *dev = &pdev->dev; 50596ccb858SWang Dongsheng struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 50696ccb858SWang Dongsheng struct sdhci_host *host = c->host; 50796ccb858SWang Dongsheng struct acpi_device *adev; 50896ccb858SWang Dongsheng int *irq = sdhci_acpi_priv(c); 50996ccb858SWang Dongsheng 51096ccb858SWang Dongsheng adev = ACPI_COMPANION(dev); 51196ccb858SWang Dongsheng if (!adev) 51296ccb858SWang Dongsheng return -ENODEV; 51396ccb858SWang Dongsheng 5144f3cde3aSAndy Shevchenko if (!acpi_dev_hid_uid_match(adev, "QCOM8051", NULL)) 51596ccb858SWang Dongsheng return 0; 51696ccb858SWang Dongsheng 51796ccb858SWang Dongsheng if (*irq < 0) 51896ccb858SWang Dongsheng return 0; 51996ccb858SWang Dongsheng 52096ccb858SWang Dongsheng free_irq(*irq, host); 52196ccb858SWang Dongsheng return 0; 52296ccb858SWang Dongsheng } 52396ccb858SWang Dongsheng 52470cce2afSPhilip Elcan static const struct sdhci_acpi_slot sdhci_acpi_slot_qcom_sd_3v = { 52570cce2afSPhilip Elcan .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION, 52670cce2afSPhilip Elcan .quirks2 = SDHCI_QUIRK2_NO_1_8_V, 52770cce2afSPhilip Elcan .caps = MMC_CAP_NONREMOVABLE, 52896ccb858SWang Dongsheng .priv_size = sizeof(int), 52996ccb858SWang Dongsheng .probe_slot = qcom_probe_slot, 53096ccb858SWang Dongsheng .free_slot = qcom_free_slot, 53170cce2afSPhilip Elcan }; 53270cce2afSPhilip Elcan 53370cce2afSPhilip Elcan static const struct sdhci_acpi_slot sdhci_acpi_slot_qcom_sd = { 53470cce2afSPhilip Elcan .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION, 53570cce2afSPhilip Elcan .caps = MMC_CAP_NONREMOVABLE, 53670cce2afSPhilip Elcan }; 53770cce2afSPhilip Elcan 53834597a3fSShah Nehal-Bakulchandra /* AMD sdhci reset dll register. */ 53934597a3fSShah Nehal-Bakulchandra #define SDHCI_AMD_RESET_DLL_REGISTER 0x908 54034597a3fSShah Nehal-Bakulchandra 54134597a3fSShah Nehal-Bakulchandra static int amd_select_drive_strength(struct mmc_card *card, 54234597a3fSShah Nehal-Bakulchandra unsigned int max_dtr, int host_drv, 54334597a3fSShah Nehal-Bakulchandra int card_drv, int *drv_type) 54434597a3fSShah Nehal-Bakulchandra { 54534597a3fSShah Nehal-Bakulchandra return MMC_SET_DRIVER_TYPE_A; 54634597a3fSShah Nehal-Bakulchandra } 54734597a3fSShah Nehal-Bakulchandra 54834597a3fSShah Nehal-Bakulchandra static void sdhci_acpi_amd_hs400_dll(struct sdhci_host *host) 54934597a3fSShah Nehal-Bakulchandra { 55034597a3fSShah Nehal-Bakulchandra /* AMD Platform requires dll setting */ 55134597a3fSShah Nehal-Bakulchandra sdhci_writel(host, 0x40003210, SDHCI_AMD_RESET_DLL_REGISTER); 55234597a3fSShah Nehal-Bakulchandra usleep_range(10, 20); 55334597a3fSShah Nehal-Bakulchandra sdhci_writel(host, 0x40033210, SDHCI_AMD_RESET_DLL_REGISTER); 55434597a3fSShah Nehal-Bakulchandra } 55534597a3fSShah Nehal-Bakulchandra 55634597a3fSShah Nehal-Bakulchandra /* 55734597a3fSShah Nehal-Bakulchandra * For AMD Platform it is required to disable the tuning 55834597a3fSShah Nehal-Bakulchandra * bit first controller to bring to HS Mode from HS200 55934597a3fSShah Nehal-Bakulchandra * mode, later enable to tune to HS400 mode. 56034597a3fSShah Nehal-Bakulchandra */ 56134597a3fSShah Nehal-Bakulchandra static void amd_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) 56234597a3fSShah Nehal-Bakulchandra { 56334597a3fSShah Nehal-Bakulchandra struct sdhci_host *host = mmc_priv(mmc); 56434597a3fSShah Nehal-Bakulchandra unsigned int old_timing = host->timing; 56534597a3fSShah Nehal-Bakulchandra 56634597a3fSShah Nehal-Bakulchandra sdhci_set_ios(mmc, ios); 56734597a3fSShah Nehal-Bakulchandra if (old_timing == MMC_TIMING_MMC_HS200 && 56834597a3fSShah Nehal-Bakulchandra ios->timing == MMC_TIMING_MMC_HS) 56934597a3fSShah Nehal-Bakulchandra sdhci_writew(host, 0x9, SDHCI_HOST_CONTROL2); 57034597a3fSShah Nehal-Bakulchandra if (old_timing != MMC_TIMING_MMC_HS400 && 57134597a3fSShah Nehal-Bakulchandra ios->timing == MMC_TIMING_MMC_HS400) { 57234597a3fSShah Nehal-Bakulchandra sdhci_writew(host, 0x80, SDHCI_HOST_CONTROL2); 57334597a3fSShah Nehal-Bakulchandra sdhci_acpi_amd_hs400_dll(host); 57434597a3fSShah Nehal-Bakulchandra } 57534597a3fSShah Nehal-Bakulchandra } 57634597a3fSShah Nehal-Bakulchandra 57734597a3fSShah Nehal-Bakulchandra static const struct sdhci_ops sdhci_acpi_ops_amd = { 57834597a3fSShah Nehal-Bakulchandra .set_clock = sdhci_set_clock, 57934597a3fSShah Nehal-Bakulchandra .set_bus_width = sdhci_set_bus_width, 58034597a3fSShah Nehal-Bakulchandra .reset = sdhci_reset, 58134597a3fSShah Nehal-Bakulchandra .set_uhs_signaling = sdhci_set_uhs_signaling, 58234597a3fSShah Nehal-Bakulchandra }; 58334597a3fSShah Nehal-Bakulchandra 58434597a3fSShah Nehal-Bakulchandra static const struct sdhci_acpi_chip sdhci_acpi_chip_amd = { 58534597a3fSShah Nehal-Bakulchandra .ops = &sdhci_acpi_ops_amd, 58634597a3fSShah Nehal-Bakulchandra }; 58734597a3fSShah Nehal-Bakulchandra 58834597a3fSShah Nehal-Bakulchandra static int sdhci_acpi_emmc_amd_probe_slot(struct platform_device *pdev, 5894f3cde3aSAndy Shevchenko struct acpi_device *adev) 59034597a3fSShah Nehal-Bakulchandra { 59134597a3fSShah Nehal-Bakulchandra struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 59234597a3fSShah Nehal-Bakulchandra struct sdhci_host *host = c->host; 59334597a3fSShah Nehal-Bakulchandra 59434597a3fSShah Nehal-Bakulchandra sdhci_read_caps(host); 59534597a3fSShah Nehal-Bakulchandra if (host->caps1 & SDHCI_SUPPORT_DDR50) 59634597a3fSShah Nehal-Bakulchandra host->mmc->caps = MMC_CAP_1_8V_DDR; 59734597a3fSShah Nehal-Bakulchandra 59834597a3fSShah Nehal-Bakulchandra if ((host->caps1 & SDHCI_SUPPORT_SDR104) && 59934597a3fSShah Nehal-Bakulchandra (host->mmc->caps & MMC_CAP_1_8V_DDR)) 60034597a3fSShah Nehal-Bakulchandra host->mmc->caps2 = MMC_CAP2_HS400_1_8V; 60134597a3fSShah Nehal-Bakulchandra 60234597a3fSShah Nehal-Bakulchandra host->mmc_host_ops.select_drive_strength = amd_select_drive_strength; 60334597a3fSShah Nehal-Bakulchandra host->mmc_host_ops.set_ios = amd_set_ios; 60434597a3fSShah Nehal-Bakulchandra return 0; 60534597a3fSShah Nehal-Bakulchandra } 60634597a3fSShah Nehal-Bakulchandra 60734597a3fSShah Nehal-Bakulchandra static const struct sdhci_acpi_slot sdhci_acpi_slot_amd_emmc = { 60834597a3fSShah Nehal-Bakulchandra .chip = &sdhci_acpi_chip_amd, 60934597a3fSShah Nehal-Bakulchandra .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE, 61045a3fe3bSRaul E Rangel .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | 61145a3fe3bSRaul E Rangel SDHCI_QUIRK_32BIT_DMA_SIZE | 61234597a3fSShah Nehal-Bakulchandra SDHCI_QUIRK_32BIT_ADMA_SIZE, 61345a3fe3bSRaul E Rangel .quirks2 = SDHCI_QUIRK2_BROKEN_64_BIT_DMA, 61434597a3fSShah Nehal-Bakulchandra .probe_slot = sdhci_acpi_emmc_amd_probe_slot, 61534597a3fSShah Nehal-Bakulchandra }; 61634597a3fSShah Nehal-Bakulchandra 61707a58883SAdrian Hunter struct sdhci_acpi_uid_slot { 61807a58883SAdrian Hunter const char *hid; 61907a58883SAdrian Hunter const char *uid; 62007a58883SAdrian Hunter const struct sdhci_acpi_slot *slot; 62107a58883SAdrian Hunter }; 62207a58883SAdrian Hunter 62307a58883SAdrian Hunter static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = { 624e839b134SAdrian Hunter { "80865ACA", NULL, &sdhci_acpi_slot_int_sd }, 625e839b134SAdrian Hunter { "80865ACC", NULL, &sdhci_acpi_slot_int_emmc }, 626e839b134SAdrian Hunter { "80865AD0", NULL, &sdhci_acpi_slot_int_sdio }, 62707a58883SAdrian Hunter { "80860F14" , "1" , &sdhci_acpi_slot_int_emmc }, 628db52d4f8SDaniel Drake { "80860F14" , "2" , &sdhci_acpi_slot_int_sdio }, 62907a58883SAdrian Hunter { "80860F14" , "3" , &sdhci_acpi_slot_int_sd }, 630aad95dc4SAdrian Hunter { "80860F16" , NULL, &sdhci_acpi_slot_int_sd }, 63107a58883SAdrian Hunter { "INT33BB" , "2" , &sdhci_acpi_slot_int_sdio }, 6327147eaf3SAdrian Hunter { "INT33BB" , "3" , &sdhci_acpi_slot_int_sd }, 63307a58883SAdrian Hunter { "INT33C6" , NULL, &sdhci_acpi_slot_int_sdio }, 63407c001c1SMika Westerberg { "INT3436" , NULL, &sdhci_acpi_slot_int_sdio }, 635d0ed8e6bSAdrian Hunter { "INT344D" , NULL, &sdhci_acpi_slot_int_sdio }, 6360cd2f044SMichele Curti { "PNP0FFF" , "3" , &sdhci_acpi_slot_int_sd }, 63707a58883SAdrian Hunter { "PNP0D40" }, 63870cce2afSPhilip Elcan { "QCOM8051", NULL, &sdhci_acpi_slot_qcom_sd_3v }, 63970cce2afSPhilip Elcan { "QCOM8052", NULL, &sdhci_acpi_slot_qcom_sd }, 64034597a3fSShah Nehal-Bakulchandra { "AMDI0040", NULL, &sdhci_acpi_slot_amd_emmc }, 64107a58883SAdrian Hunter { }, 64207a58883SAdrian Hunter }; 64307a58883SAdrian Hunter 644c4e05037SAdrian Hunter static const struct acpi_device_id sdhci_acpi_ids[] = { 645e839b134SAdrian Hunter { "80865ACA" }, 646e839b134SAdrian Hunter { "80865ACC" }, 647e839b134SAdrian Hunter { "80865AD0" }, 64807a58883SAdrian Hunter { "80860F14" }, 649aad95dc4SAdrian Hunter { "80860F16" }, 65007a58883SAdrian Hunter { "INT33BB" }, 65107a58883SAdrian Hunter { "INT33C6" }, 65207c001c1SMika Westerberg { "INT3436" }, 653d0ed8e6bSAdrian Hunter { "INT344D" }, 654c4e05037SAdrian Hunter { "PNP0D40" }, 65570cce2afSPhilip Elcan { "QCOM8051" }, 65670cce2afSPhilip Elcan { "QCOM8052" }, 65734597a3fSShah Nehal-Bakulchandra { "AMDI0040" }, 658c4e05037SAdrian Hunter { }, 659c4e05037SAdrian Hunter }; 660c4e05037SAdrian Hunter MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids); 661c4e05037SAdrian Hunter 66284d49b3dSHans de Goede static const struct dmi_system_id sdhci_acpi_quirks[] = { 66384d49b3dSHans de Goede { 66484d49b3dSHans de Goede /* 66584d49b3dSHans de Goede * The Lenovo Miix 320-10ICR has a bug in the _PS0 method of 66684d49b3dSHans de Goede * the SHC1 ACPI device, this bug causes it to reprogram the 66784d49b3dSHans de Goede * wrong LDO (DLDO3) to 1.8V if 1.8V modes are used and the 66884d49b3dSHans de Goede * card is (runtime) suspended + resumed. DLDO3 is used for 66984d49b3dSHans de Goede * the LCD and setting it to 1.8V causes the LCD to go black. 67084d49b3dSHans de Goede */ 67184d49b3dSHans de Goede .matches = { 67284d49b3dSHans de Goede DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), 67384d49b3dSHans de Goede DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 67484d49b3dSHans de Goede }, 67584d49b3dSHans de Goede .driver_data = (void *)DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP, 67684d49b3dSHans de Goede }, 6773397b251SHans de Goede { 6783397b251SHans de Goede /* 6793397b251SHans de Goede * The Acer Aspire Switch 10 (SW5-012) microSD slot always 6803397b251SHans de Goede * reports the card being write-protected even though microSD 6813397b251SHans de Goede * cards do not have a write-protect switch at all. 6823397b251SHans de Goede */ 6833397b251SHans de Goede .matches = { 6843397b251SHans de Goede DMI_MATCH(DMI_SYS_VENDOR, "Acer"), 6853397b251SHans de Goede DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"), 6863397b251SHans de Goede }, 6873397b251SHans de Goede .driver_data = (void *)DMI_QUIRK_SD_NO_WRITE_PROTECT, 6883397b251SHans de Goede }, 68984d49b3dSHans de Goede {} /* Terminating entry */ 69084d49b3dSHans de Goede }; 69184d49b3dSHans de Goede 6924f3cde3aSAndy Shevchenko static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(struct acpi_device *adev) 693c4e05037SAdrian Hunter { 69407a58883SAdrian Hunter const struct sdhci_acpi_uid_slot *u; 695c4e05037SAdrian Hunter 69607a58883SAdrian Hunter for (u = sdhci_acpi_uids; u->hid; u++) { 6974f3cde3aSAndy Shevchenko if (acpi_dev_hid_uid_match(adev, u->hid, u->uid)) 69807a58883SAdrian Hunter return u->slot; 69907a58883SAdrian Hunter } 700c4e05037SAdrian Hunter return NULL; 701c4e05037SAdrian Hunter } 702c4e05037SAdrian Hunter 7034e608e4eSGreg Kroah-Hartman static int sdhci_acpi_probe(struct platform_device *pdev) 704c4e05037SAdrian Hunter { 705c4e05037SAdrian Hunter struct device *dev = &pdev->dev; 706f07b7952SAdrian Hunter const struct sdhci_acpi_slot *slot; 707e5bbf307SAdrian Hunter struct acpi_device *device, *child; 70884d49b3dSHans de Goede const struct dmi_system_id *id; 709c4e05037SAdrian Hunter struct sdhci_acpi_host *c; 710c4e05037SAdrian Hunter struct sdhci_host *host; 711c4e05037SAdrian Hunter struct resource *iomem; 712c4e05037SAdrian Hunter resource_size_t len; 713f07b7952SAdrian Hunter size_t priv_size; 71484d49b3dSHans de Goede int quirks = 0; 71587875655SMika Westerberg int err; 716c4e05037SAdrian Hunter 717cd25c7beSAndy Shevchenko device = ACPI_COMPANION(dev); 718cd25c7beSAndy Shevchenko if (!device) 719c4e05037SAdrian Hunter return -ENODEV; 720c4e05037SAdrian Hunter 72184d49b3dSHans de Goede id = dmi_first_match(sdhci_acpi_quirks); 72284d49b3dSHans de Goede if (id) 72384d49b3dSHans de Goede quirks = (long)id->driver_data; 72484d49b3dSHans de Goede 7254f3cde3aSAndy Shevchenko slot = sdhci_acpi_get_slot(device); 726f07b7952SAdrian Hunter 727e5bbf307SAdrian Hunter /* Power on the SDHCI controller and its children */ 728e5bbf307SAdrian Hunter acpi_device_fix_up_power(device); 7294f3cde3aSAndy Shevchenko if (!sdhci_acpi_no_fixup_child_power(device)) { 730e5bbf307SAdrian Hunter list_for_each_entry(child, &device->children, node) 731e1d070c3SHans de Goede if (child->status.present && child->status.enabled) 732e5bbf307SAdrian Hunter acpi_device_fix_up_power(child); 73317753d16SAdrian Hunter } 734e5bbf307SAdrian Hunter 7356e1c7d61SAdrian Hunter if (sdhci_acpi_byt_defer(dev)) 7366e1c7d61SAdrian Hunter return -EPROBE_DEFER; 7376e1c7d61SAdrian Hunter 738c4e05037SAdrian Hunter iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 739c4e05037SAdrian Hunter if (!iomem) 740c4e05037SAdrian Hunter return -ENOMEM; 741c4e05037SAdrian Hunter 742c4e05037SAdrian Hunter len = resource_size(iomem); 743c4e05037SAdrian Hunter if (len < 0x100) 744c4e05037SAdrian Hunter dev_err(dev, "Invalid iomem size!\n"); 745c4e05037SAdrian Hunter 746c4e05037SAdrian Hunter if (!devm_request_mem_region(dev, iomem->start, len, dev_name(dev))) 747c4e05037SAdrian Hunter return -ENOMEM; 748c4e05037SAdrian Hunter 749f07b7952SAdrian Hunter priv_size = slot ? slot->priv_size : 0; 750f07b7952SAdrian Hunter host = sdhci_alloc_host(dev, sizeof(struct sdhci_acpi_host) + priv_size); 751c4e05037SAdrian Hunter if (IS_ERR(host)) 752c4e05037SAdrian Hunter return PTR_ERR(host); 753c4e05037SAdrian Hunter 754c4e05037SAdrian Hunter c = sdhci_priv(host); 755c4e05037SAdrian Hunter c->host = host; 756f07b7952SAdrian Hunter c->slot = slot; 757c4e05037SAdrian Hunter c->pdev = pdev; 758c4e05037SAdrian Hunter c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM); 759c4e05037SAdrian Hunter 760c4e05037SAdrian Hunter platform_set_drvdata(pdev, c); 761c4e05037SAdrian Hunter 762c4e05037SAdrian Hunter host->hw_name = "ACPI"; 763c4e05037SAdrian Hunter host->ops = &sdhci_acpi_ops_dflt; 764c4e05037SAdrian Hunter host->irq = platform_get_irq(pdev, 0); 765d58ac803SAdrian Hunter if (host->irq < 0) { 7661b7ba57eSArvind Yadav err = -EINVAL; 7671b7ba57eSArvind Yadav goto err_free; 7681b7ba57eSArvind Yadav } 769c4e05037SAdrian Hunter 7704bdc0d67SChristoph Hellwig host->ioaddr = devm_ioremap(dev, iomem->start, 771c4e05037SAdrian Hunter resource_size(iomem)); 772c4e05037SAdrian Hunter if (host->ioaddr == NULL) { 773c4e05037SAdrian Hunter err = -ENOMEM; 774c4e05037SAdrian Hunter goto err_free; 775c4e05037SAdrian Hunter } 776c4e05037SAdrian Hunter 777c4e05037SAdrian Hunter if (c->slot) { 778578b36b6SGao, Yunpeng if (c->slot->probe_slot) { 7794f3cde3aSAndy Shevchenko err = c->slot->probe_slot(pdev, device); 780578b36b6SGao, Yunpeng if (err) 781578b36b6SGao, Yunpeng goto err_free; 782578b36b6SGao, Yunpeng } 783c4e05037SAdrian Hunter if (c->slot->chip) { 784c4e05037SAdrian Hunter host->ops = c->slot->chip->ops; 785c4e05037SAdrian Hunter host->quirks |= c->slot->chip->quirks; 786c4e05037SAdrian Hunter host->quirks2 |= c->slot->chip->quirks2; 787c4e05037SAdrian Hunter host->mmc->caps |= c->slot->chip->caps; 788c4e05037SAdrian Hunter host->mmc->caps2 |= c->slot->chip->caps2; 789c4e05037SAdrian Hunter host->mmc->pm_caps |= c->slot->chip->pm_caps; 790c4e05037SAdrian Hunter } 791c4e05037SAdrian Hunter host->quirks |= c->slot->quirks; 792c4e05037SAdrian Hunter host->quirks2 |= c->slot->quirks2; 793c4e05037SAdrian Hunter host->mmc->caps |= c->slot->caps; 794c4e05037SAdrian Hunter host->mmc->caps2 |= c->slot->caps2; 795c4e05037SAdrian Hunter host->mmc->pm_caps |= c->slot->pm_caps; 796c4e05037SAdrian Hunter } 797c4e05037SAdrian Hunter 7980d3e3350SAdrian Hunter host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP; 7990d3e3350SAdrian Hunter 8004fd4409cSAdrian Hunter if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) { 8014fd4409cSAdrian Hunter bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL); 8024fd4409cSAdrian Hunter 803d0052ad9SMichał Mirosław err = mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0); 804e28d6f04SZhang Rui if (err) { 805e28d6f04SZhang Rui if (err == -EPROBE_DEFER) 806e28d6f04SZhang Rui goto err_free; 8074fd4409cSAdrian Hunter dev_warn(dev, "failed to setup card detect gpio\n"); 8084fd4409cSAdrian Hunter c->use_runtime_pm = false; 8094fd4409cSAdrian Hunter } 81084d49b3dSHans de Goede 81184d49b3dSHans de Goede if (quirks & DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP) 81284d49b3dSHans de Goede c->reset_signal_volt_on_suspend = true; 8133397b251SHans de Goede 8143397b251SHans de Goede if (quirks & DMI_QUIRK_SD_NO_WRITE_PROTECT) 8153397b251SHans de Goede host->mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT; 8164fd4409cSAdrian Hunter } 8174fd4409cSAdrian Hunter 8180cc1a0f4SAdrian Hunter err = sdhci_setup_host(host); 819c4e05037SAdrian Hunter if (err) 820c4e05037SAdrian Hunter goto err_free; 821c4e05037SAdrian Hunter 8220cc1a0f4SAdrian Hunter if (c->slot && c->slot->setup_host) { 8230cc1a0f4SAdrian Hunter err = c->slot->setup_host(pdev); 8240cc1a0f4SAdrian Hunter if (err) 8250cc1a0f4SAdrian Hunter goto err_cleanup; 8260cc1a0f4SAdrian Hunter } 8270cc1a0f4SAdrian Hunter 8280cc1a0f4SAdrian Hunter err = __sdhci_add_host(host); 8290cc1a0f4SAdrian Hunter if (err) 8300cc1a0f4SAdrian Hunter goto err_cleanup; 8310cc1a0f4SAdrian Hunter 832c4e05037SAdrian Hunter if (c->use_runtime_pm) { 8331d1ff458SAdrian Hunter pm_runtime_set_active(dev); 834c4e05037SAdrian Hunter pm_suspend_ignore_children(dev, 1); 835c4e05037SAdrian Hunter pm_runtime_set_autosuspend_delay(dev, 50); 836c4e05037SAdrian Hunter pm_runtime_use_autosuspend(dev); 837c4e05037SAdrian Hunter pm_runtime_enable(dev); 838c4e05037SAdrian Hunter } 839c4e05037SAdrian Hunter 8404e6a2ef9SFu, Zhonghui device_enable_async_suspend(dev); 8414e6a2ef9SFu, Zhonghui 842c4e05037SAdrian Hunter return 0; 843c4e05037SAdrian Hunter 8440cc1a0f4SAdrian Hunter err_cleanup: 8450cc1a0f4SAdrian Hunter sdhci_cleanup_host(c->host); 846c4e05037SAdrian Hunter err_free: 847c7eabbeeSWang Dongsheng if (c->slot && c->slot->free_slot) 848c7eabbeeSWang Dongsheng c->slot->free_slot(pdev); 849c7eabbeeSWang Dongsheng 850c4e05037SAdrian Hunter sdhci_free_host(c->host); 851c4e05037SAdrian Hunter return err; 852c4e05037SAdrian Hunter } 853c4e05037SAdrian Hunter 8544e608e4eSGreg Kroah-Hartman static int sdhci_acpi_remove(struct platform_device *pdev) 855c4e05037SAdrian Hunter { 856c4e05037SAdrian Hunter struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 857c4e05037SAdrian Hunter struct device *dev = &pdev->dev; 858c4e05037SAdrian Hunter int dead; 859c4e05037SAdrian Hunter 860c4e05037SAdrian Hunter if (c->use_runtime_pm) { 861c4e05037SAdrian Hunter pm_runtime_get_sync(dev); 862c4e05037SAdrian Hunter pm_runtime_disable(dev); 863c4e05037SAdrian Hunter pm_runtime_put_noidle(dev); 864c4e05037SAdrian Hunter } 865c4e05037SAdrian Hunter 866578b36b6SGao, Yunpeng if (c->slot && c->slot->remove_slot) 867578b36b6SGao, Yunpeng c->slot->remove_slot(pdev); 868578b36b6SGao, Yunpeng 869c4e05037SAdrian Hunter dead = (sdhci_readl(c->host, SDHCI_INT_STATUS) == ~0); 870c4e05037SAdrian Hunter sdhci_remove_host(c->host, dead); 871c7eabbeeSWang Dongsheng 872c7eabbeeSWang Dongsheng if (c->slot && c->slot->free_slot) 873c7eabbeeSWang Dongsheng c->slot->free_slot(pdev); 874c7eabbeeSWang Dongsheng 875c4e05037SAdrian Hunter sdhci_free_host(c->host); 876c4e05037SAdrian Hunter 877c4e05037SAdrian Hunter return 0; 878c4e05037SAdrian Hunter } 879c4e05037SAdrian Hunter 88084d49b3dSHans de Goede static void __maybe_unused sdhci_acpi_reset_signal_voltage_if_needed( 88184d49b3dSHans de Goede struct device *dev) 88284d49b3dSHans de Goede { 88384d49b3dSHans de Goede struct sdhci_acpi_host *c = dev_get_drvdata(dev); 88484d49b3dSHans de Goede struct sdhci_host *host = c->host; 88584d49b3dSHans de Goede 88684d49b3dSHans de Goede if (c->is_intel && c->reset_signal_volt_on_suspend && 88784d49b3dSHans de Goede host->mmc->ios.signal_voltage != MMC_SIGNAL_VOLTAGE_330) { 88884d49b3dSHans de Goede struct intel_host *intel_host = sdhci_acpi_priv(c); 88984d49b3dSHans de Goede unsigned int fn = INTEL_DSM_V33_SWITCH; 89084d49b3dSHans de Goede u32 result = 0; 89184d49b3dSHans de Goede 89284d49b3dSHans de Goede intel_dsm(intel_host, dev, fn, &result); 89384d49b3dSHans de Goede } 89484d49b3dSHans de Goede } 89584d49b3dSHans de Goede 896c4e05037SAdrian Hunter #ifdef CONFIG_PM_SLEEP 897c4e05037SAdrian Hunter 898c4e05037SAdrian Hunter static int sdhci_acpi_suspend(struct device *dev) 899c4e05037SAdrian Hunter { 900c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 901d38dcad4SAdrian Hunter struct sdhci_host *host = c->host; 90284d49b3dSHans de Goede int ret; 903c4e05037SAdrian Hunter 904d38dcad4SAdrian Hunter if (host->tuning_mode != SDHCI_TUNING_MODE_3) 905d38dcad4SAdrian Hunter mmc_retune_needed(host->mmc); 906d38dcad4SAdrian Hunter 90784d49b3dSHans de Goede ret = sdhci_suspend_host(host); 90884d49b3dSHans de Goede if (ret) 90984d49b3dSHans de Goede return ret; 91084d49b3dSHans de Goede 91184d49b3dSHans de Goede sdhci_acpi_reset_signal_voltage_if_needed(dev); 91284d49b3dSHans de Goede return 0; 913c4e05037SAdrian Hunter } 914c4e05037SAdrian Hunter 915c4e05037SAdrian Hunter static int sdhci_acpi_resume(struct device *dev) 916c4e05037SAdrian Hunter { 917c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 918c4e05037SAdrian Hunter 9196e1c7d61SAdrian Hunter sdhci_acpi_byt_setting(&c->pdev->dev); 9206e1c7d61SAdrian Hunter 921c4e05037SAdrian Hunter return sdhci_resume_host(c->host); 922c4e05037SAdrian Hunter } 923c4e05037SAdrian Hunter 924c4e05037SAdrian Hunter #endif 925c4e05037SAdrian Hunter 926162d6f98SRafael J. Wysocki #ifdef CONFIG_PM 927c4e05037SAdrian Hunter 928c4e05037SAdrian Hunter static int sdhci_acpi_runtime_suspend(struct device *dev) 929c4e05037SAdrian Hunter { 930c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 931d38dcad4SAdrian Hunter struct sdhci_host *host = c->host; 93284d49b3dSHans de Goede int ret; 933c4e05037SAdrian Hunter 934d38dcad4SAdrian Hunter if (host->tuning_mode != SDHCI_TUNING_MODE_3) 935d38dcad4SAdrian Hunter mmc_retune_needed(host->mmc); 936d38dcad4SAdrian Hunter 93784d49b3dSHans de Goede ret = sdhci_runtime_suspend_host(host); 93884d49b3dSHans de Goede if (ret) 93984d49b3dSHans de Goede return ret; 94084d49b3dSHans de Goede 94184d49b3dSHans de Goede sdhci_acpi_reset_signal_voltage_if_needed(dev); 94284d49b3dSHans de Goede return 0; 943c4e05037SAdrian Hunter } 944c4e05037SAdrian Hunter 945c4e05037SAdrian Hunter static int sdhci_acpi_runtime_resume(struct device *dev) 946c4e05037SAdrian Hunter { 947c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 948c4e05037SAdrian Hunter 9496e1c7d61SAdrian Hunter sdhci_acpi_byt_setting(&c->pdev->dev); 9506e1c7d61SAdrian Hunter 951c6303c5dSBaolin Wang return sdhci_runtime_resume_host(c->host, 0); 952c4e05037SAdrian Hunter } 953c4e05037SAdrian Hunter 954c4e05037SAdrian Hunter #endif 955c4e05037SAdrian Hunter 956c4e05037SAdrian Hunter static const struct dev_pm_ops sdhci_acpi_pm_ops = { 957dafed447SUlf Hansson SET_SYSTEM_SLEEP_PM_OPS(sdhci_acpi_suspend, sdhci_acpi_resume) 9581d75f74bSPeter Griffin SET_RUNTIME_PM_OPS(sdhci_acpi_runtime_suspend, 9599b449e99SUlf Hansson sdhci_acpi_runtime_resume, NULL) 960c4e05037SAdrian Hunter }; 961c4e05037SAdrian Hunter 962c4e05037SAdrian Hunter static struct platform_driver sdhci_acpi_driver = { 963c4e05037SAdrian Hunter .driver = { 964c4e05037SAdrian Hunter .name = "sdhci-acpi", 965c4e05037SAdrian Hunter .acpi_match_table = sdhci_acpi_ids, 966c4e05037SAdrian Hunter .pm = &sdhci_acpi_pm_ops, 967c4e05037SAdrian Hunter }, 968c4e05037SAdrian Hunter .probe = sdhci_acpi_probe, 9694e608e4eSGreg Kroah-Hartman .remove = sdhci_acpi_remove, 970c4e05037SAdrian Hunter }; 971c4e05037SAdrian Hunter 972c4e05037SAdrian Hunter module_platform_driver(sdhci_acpi_driver); 973c4e05037SAdrian Hunter 974c4e05037SAdrian Hunter MODULE_DESCRIPTION("Secure Digital Host Controller Interface ACPI driver"); 975c4e05037SAdrian Hunter MODULE_AUTHOR("Adrian Hunter"); 976c4e05037SAdrian Hunter MODULE_LICENSE("GPL v2"); 977