diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/Kconfig | 2 | ||||
-rw-r--r-- | drivers/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpio/pca953x_gpio.c | 1 | ||||
-rw-r--r-- | drivers/i2c/designware_i2c.c | 64 | ||||
-rw-r--r-- | drivers/i2c/xilinx_xiic.c | 14 | ||||
-rw-r--r-- | drivers/mtd/ubi/Kconfig | 2 | ||||
-rw-r--r-- | drivers/mtd/ubi/io.c | 2 | ||||
-rw-r--r-- | drivers/mtd/ubispl/ubispl.c | 215 | ||||
-rw-r--r-- | drivers/mtd/ubispl/ubispl.h | 9 | ||||
-rw-r--r-- | drivers/pci_endpoint/Kconfig | 34 | ||||
-rw-r--r-- | drivers/pci_endpoint/Makefile | 8 | ||||
-rw-r--r-- | drivers/pci_endpoint/pci_ep-uclass.c | 211 | ||||
-rw-r--r-- | drivers/pci_endpoint/pcie-cadence-ep.c | 177 | ||||
-rw-r--r-- | drivers/pci_endpoint/pcie-cadence.h | 309 | ||||
-rw-r--r-- | drivers/pci_endpoint/sandbox-pci_ep.c | 182 | ||||
-rw-r--r-- | drivers/rtc/pcf2127.c | 33 | ||||
-rw-r--r-- | drivers/tpm/tpm2_tis_spi.c | 12 |
17 files changed, 1248 insertions, 28 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig index 96ff4f566a..5a9d01b508 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -66,6 +66,8 @@ source "drivers/nvme/Kconfig" source "drivers/pci/Kconfig" +source "drivers/pci_endpoint/Kconfig" + source "drivers/pch/Kconfig" source "drivers/pcmcia/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 6635dabd2c..603aa98590 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -86,6 +86,7 @@ obj-$(CONFIG_FPGA) += fpga/ obj-y += misc/ obj-$(CONFIG_MMC) += mmc/ obj-$(CONFIG_NVME) += nvme/ +obj-$(CONFIG_PCI_ENDPOINT) += pci_endpoint/ obj-y += pcmcia/ obj-y += dfu/ obj-$(CONFIG_PCH) += pch/ diff --git a/drivers/gpio/pca953x_gpio.c b/drivers/gpio/pca953x_gpio.c index 341527acc5..07a3356b3c 100644 --- a/drivers/gpio/pca953x_gpio.c +++ b/drivers/gpio/pca953x_gpio.c @@ -363,6 +363,7 @@ static const struct udevice_id pca953x_ids[] = { { .compatible = "ti,tca6408", .data = OF_953X(8, PCA_INT), }, { .compatible = "ti,tca6416", .data = OF_953X(16, PCA_INT), }, { .compatible = "ti,tca6424", .data = OF_953X(24, PCA_INT), }, + { .compatible = "ti,tca9539", .data = OF_953X(16, PCA_INT), }, { .compatible = "onsemi,pca9654", .data = OF_953X(8, PCA_INT), }, diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c index 9ccc2411a6..6daa90e744 100644 --- a/drivers/i2c/designware_i2c.c +++ b/drivers/i2c/designware_i2c.c @@ -4,6 +4,7 @@ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. */ +#include <clk.h> #include <common.h> #include <dm.h> #include <i2c.h> @@ -35,6 +36,9 @@ struct dw_i2c { struct i2c_regs *regs; struct dw_scl_sda_cfg *scl_sda_cfg; struct reset_ctl_bulk resets; +#if CONFIG_IS_ENABLED(CLK) + struct clk clk; +#endif }; #ifdef CONFIG_SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED @@ -78,10 +82,12 @@ static int dw_i2c_enable(struct i2c_regs *i2c_base, bool enable) */ static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base, struct dw_scl_sda_cfg *scl_sda_cfg, - unsigned int speed) + unsigned int speed, + unsigned int bus_mhz) { unsigned int cntl; unsigned int hcnt, lcnt; + unsigned int ena; int i2c_spd; if (speed >= I2C_MAX_SPEED) @@ -91,6 +97,9 @@ static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base, else i2c_spd = IC_SPEED_MODE_STANDARD; + /* Get enable setting for restore later */ + ena = readl(&i2c_base->ic_enable) & IC_ENABLE_0B; + /* to set speed cltr must be disabled */ dw_i2c_enable(i2c_base, false); @@ -104,8 +113,8 @@ static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base, hcnt = scl_sda_cfg->fs_hcnt; lcnt = scl_sda_cfg->fs_lcnt; } else { - hcnt = (IC_CLK * MIN_HS_SCL_HIGHTIME) / NANO_TO_MICRO; - lcnt = (IC_CLK * MIN_HS_SCL_LOWTIME) / NANO_TO_MICRO; + hcnt = (bus_mhz * MIN_HS_SCL_HIGHTIME) / NANO_TO_MICRO; + lcnt = (bus_mhz * MIN_HS_SCL_LOWTIME) / NANO_TO_MICRO; } writel(hcnt, &i2c_base->ic_hs_scl_hcnt); writel(lcnt, &i2c_base->ic_hs_scl_lcnt); @@ -118,8 +127,8 @@ static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base, hcnt = scl_sda_cfg->ss_hcnt; lcnt = scl_sda_cfg->ss_lcnt; } else { - hcnt = (IC_CLK * MIN_SS_SCL_HIGHTIME) / NANO_TO_MICRO; - lcnt = (IC_CLK * MIN_SS_SCL_LOWTIME) / NANO_TO_MICRO; + hcnt = (bus_mhz * MIN_SS_SCL_HIGHTIME) / NANO_TO_MICRO; + lcnt = (bus_mhz * MIN_SS_SCL_LOWTIME) / NANO_TO_MICRO; } writel(hcnt, &i2c_base->ic_ss_scl_hcnt); writel(lcnt, &i2c_base->ic_ss_scl_lcnt); @@ -132,8 +141,8 @@ static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base, hcnt = scl_sda_cfg->fs_hcnt; lcnt = scl_sda_cfg->fs_lcnt; } else { - hcnt = (IC_CLK * MIN_FS_SCL_HIGHTIME) / NANO_TO_MICRO; - lcnt = (IC_CLK * MIN_FS_SCL_LOWTIME) / NANO_TO_MICRO; + hcnt = (bus_mhz * MIN_FS_SCL_HIGHTIME) / NANO_TO_MICRO; + lcnt = (bus_mhz * MIN_FS_SCL_LOWTIME) / NANO_TO_MICRO; } writel(hcnt, &i2c_base->ic_fs_scl_hcnt); writel(lcnt, &i2c_base->ic_fs_scl_lcnt); @@ -146,8 +155,9 @@ static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base, if (scl_sda_cfg) writel(scl_sda_cfg->sda_hold, &i2c_base->ic_sda_hold); - /* Enable back i2c now speed set */ - dw_i2c_enable(i2c_base, true); + /* Restore back i2c now speed set */ + if (ena == IC_ENABLE_0B) + dw_i2c_enable(i2c_base, true); return 0; } @@ -388,7 +398,7 @@ static int __dw_i2c_init(struct i2c_regs *i2c_base, int speed, int slaveaddr) writel(IC_TX_TL, &i2c_base->ic_tx_tl); writel(IC_STOP_DET, &i2c_base->ic_intr_mask); #ifndef CONFIG_DM_I2C - __dw_i2c_set_bus_speed(i2c_base, NULL, speed); + __dw_i2c_set_bus_speed(i2c_base, NULL, speed, IC_CLK); writel(slaveaddr, &i2c_base->ic_sar); #endif @@ -433,7 +443,7 @@ static unsigned int dw_i2c_set_bus_speed(struct i2c_adapter *adap, unsigned int speed) { adap->speed = speed; - return __dw_i2c_set_bus_speed(i2c_get_base(adap), NULL, speed); + return __dw_i2c_set_bus_speed(i2c_get_base(adap), NULL, speed, IC_CLK); } static void dw_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr) @@ -523,8 +533,20 @@ static int designware_i2c_xfer(struct udevice *bus, struct i2c_msg *msg, static int designware_i2c_set_bus_speed(struct udevice *bus, unsigned int speed) { struct dw_i2c *i2c = dev_get_priv(bus); + ulong rate; + +#if CONFIG_IS_ENABLED(CLK) + rate = clk_get_rate(&i2c->clk); + if (IS_ERR_VALUE(rate)) + return -EINVAL; - return __dw_i2c_set_bus_speed(i2c->regs, i2c->scl_sda_cfg, speed); + /* Convert to MHz */ + rate /= 1000000; +#else + rate = IC_CLK; +#endif + return __dw_i2c_set_bus_speed(i2c->regs, i2c->scl_sda_cfg, speed, + rate); } static int designware_i2c_probe_chip(struct udevice *bus, uint chip_addr, @@ -568,6 +590,19 @@ static int designware_i2c_probe(struct udevice *bus) else reset_deassert_bulk(&priv->resets); +#if CONFIG_IS_ENABLED(CLK) + ret = clk_get_by_index(bus, 0, &priv->clk); + if (ret) + return ret; + + ret = clk_enable(&priv->clk); + if (ret && ret != -ENOSYS && ret != -ENOTSUPP) { + clk_free(&priv->clk); + dev_err(bus, "failed to enable clock\n"); + return ret; + } +#endif + return __dw_i2c_init(priv->regs, 0, 0); } @@ -575,6 +610,11 @@ static int designware_i2c_remove(struct udevice *dev) { struct dw_i2c *priv = dev_get_priv(dev); +#if CONFIG_IS_ENABLED(CLK) + clk_disable(&priv->clk); + clk_free(&priv->clk); +#endif + return reset_release_bulk(&priv->resets); } diff --git a/drivers/i2c/xilinx_xiic.c b/drivers/i2c/xilinx_xiic.c index 83114ed510..5ce0f869c7 100644 --- a/drivers/i2c/xilinx_xiic.c +++ b/drivers/i2c/xilinx_xiic.c @@ -149,7 +149,7 @@ static void xiic_fill_tx_fifo(struct xilinx_xiic_priv *priv, while (len--) { u16 data = msg->buf[pos++]; - if (pos == len && nmsgs == 1) { + if ((msg->len - pos == 0) && nmsgs == 1) { /* last message in transfer -> STOP */ data |= XIIC_TX_DYN_STOP_MASK; } @@ -266,8 +266,20 @@ static void xiic_reinit(struct xilinx_xiic_priv *priv) static int xilinx_xiic_xfer(struct udevice *dev, struct i2c_msg *msg, int nmsgs) { + struct xilinx_xiic_priv *priv = dev_get_priv(dev); int ret = 0; + ret = wait_for_bit_8(priv->base + XIIC_SR_REG_OFFSET, + XIIC_SR_BUS_BUSY_MASK, false, 1000, true); + + if (ret == -ETIMEDOUT) + dev_err(dev, "timeout waiting for bus not busy condition\n"); + + if (ret) + return ret; + + xiic_reinit(priv); + for (; nmsgs > 0; nmsgs--, msg++) { if (msg->flags & I2C_M_RD) ret = xilinx_xiic_read_common(dev, msg, nmsgs); diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig index 2b17eae947..a78fd51ba7 100644 --- a/drivers/mtd/ubi/Kconfig +++ b/drivers/mtd/ubi/Kconfig @@ -1,6 +1,6 @@ menu "UBI support" -config CONFIG_UBI_SILENCE_MSG +config UBI_SILENCE_MSG bool "UBI silence verbose messages" default ENV_IS_IN_UBI help diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 8ef7823b37..688fb509d2 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -1351,6 +1351,7 @@ static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum, ubi_err(ubi, "self-check failed for PEB %d:%d, len %d", pnum, offset, len); +#if !defined(CONFIG_UBI_SILENCE_MSG) ubi_msg(ubi, "data differ at position %d", i); ubi_msg(ubi, "hex dump of the original buffer from %d to %d", i, i + dump_len); @@ -1360,6 +1361,7 @@ static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum, i, i + dump_len); print_hex_dump("", DUMP_PREFIX_OFFSET, 32, 1, buf1 + i, dump_len, 1); +#endif dump_stack(); err = -EINVAL; goto out_free; diff --git a/drivers/mtd/ubispl/ubispl.c b/drivers/mtd/ubispl/ubispl.c index eeb1cbefb7..3f3b9b4367 100644 --- a/drivers/mtd/ubispl/ubispl.c +++ b/drivers/mtd/ubispl/ubispl.c @@ -45,6 +45,187 @@ static int ubi_io_is_bad(struct ubi_scan_info *ubi, int peb) return peb >= ubi->peb_count || peb < 0; } +#ifdef CONFIG_SPL_UBI_LOAD_BY_VOLNAME + +/** + * ubi_dump_vtbl_record - dump a &struct ubi_vtbl_record object. + * @r: the object to dump + * @idx: volume table index + */ +void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx) +{ + int name_len = be16_to_cpu(r->name_len); + + ubi_dbg("Volume table record %d dump: size: %d", + idx, sizeof(struct ubi_vtbl_record)); + ubi_dbg("\treserved_pebs %d", be32_to_cpu(r->reserved_pebs)); + ubi_dbg("\talignment %d", be32_to_cpu(r->alignment)); + ubi_dbg("\tdata_pad %d", be32_to_cpu(r->data_pad)); + ubi_dbg("\tvol_type %d", (int)r->vol_type); + ubi_dbg("\tupd_marker %d", (int)r->upd_marker); + ubi_dbg("\tname_len %d", name_len); + + if (r->name[0] == '\0') { + ubi_dbg("\tname NULL"); + return; + } + + if (name_len <= UBI_VOL_NAME_MAX && + strnlen(&r->name[0], name_len + 1) == name_len) { + ubi_dbg("\tname %s", &r->name[0]); + } else { + ubi_dbg("\t1st 5 characters of name: %c%c%c%c%c", + r->name[0], r->name[1], r->name[2], r->name[3], + r->name[4]); + } + ubi_dbg("\tcrc %#08x", be32_to_cpu(r->crc)); +} + +/* Empty volume table record */ +static struct ubi_vtbl_record empty_vtbl_record; + +/** + * vtbl_check - check if volume table is not corrupted and sensible. + * @ubi: UBI device description object + * @vtbl: volume table + * + * This function returns zero if @vtbl is all right, %1 if CRC is incorrect, + * and %-EINVAL if it contains inconsistent data. + */ +static int vtbl_check(struct ubi_scan_info *ubi, + struct ubi_vtbl_record *vtbl) +{ + int i, n, reserved_pebs, alignment, data_pad, vol_type, name_len; + int upd_marker, err; + uint32_t crc; + const char *name; + + for (i = 0; i < UBI_SPL_VOL_IDS; i++) { + reserved_pebs = be32_to_cpu(vtbl[i].reserved_pebs); + alignment = be32_to_cpu(vtbl[i].alignment); + data_pad = be32_to_cpu(vtbl[i].data_pad); + upd_marker = vtbl[i].upd_marker; + vol_type = vtbl[i].vol_type; + name_len = be16_to_cpu(vtbl[i].name_len); + name = &vtbl[i].name[0]; + + crc = crc32(UBI_CRC32_INIT, &vtbl[i], UBI_VTBL_RECORD_SIZE_CRC); + if (be32_to_cpu(vtbl[i].crc) != crc) { + ubi_err("bad CRC at record %u: %#08x, not %#08x", + i, crc, be32_to_cpu(vtbl[i].crc)); + ubi_dump_vtbl_record(&vtbl[i], i); + return 1; + } + + if (reserved_pebs == 0) { + if (memcmp(&vtbl[i], &empty_vtbl_record, + UBI_VTBL_RECORD_SIZE)) { + err = 2; + goto bad; + } + continue; + } + + if (reserved_pebs < 0 || alignment < 0 || data_pad < 0 || + name_len < 0) { + err = 3; + goto bad; + } + + if (alignment > ubi->leb_size || alignment == 0) { + err = 4; + goto bad; + } + + n = alignment & (CONFIG_SPL_UBI_VID_OFFSET - 1); + if (alignment != 1 && n) { + err = 5; + goto bad; + } + + n = ubi->leb_size % alignment; + if (data_pad != n) { + ubi_err("bad data_pad, has to be %d", n); + err = 6; + goto bad; + } + + if (vol_type != UBI_VID_DYNAMIC && vol_type != UBI_VID_STATIC) { + err = 7; + goto bad; + } + + if (upd_marker != 0 && upd_marker != 1) { + err = 8; + goto bad; + } + + if (name_len > UBI_VOL_NAME_MAX) { + err = 10; + goto bad; + } + + if (name[0] == '\0') { + err = 11; + goto bad; + } + + if (name_len != strnlen(name, name_len + 1)) { + err = 12; + goto bad; + } + + ubi_dump_vtbl_record(&vtbl[i], i); + } + + /* Checks that all names are unique */ + for (i = 0; i < UBI_SPL_VOL_IDS - 1; i++) { + for (n = i + 1; n < UBI_SPL_VOL_IDS; n++) { + int len1 = be16_to_cpu(vtbl[i].name_len); + int len2 = be16_to_cpu(vtbl[n].name_len); + + if (len1 > 0 && len1 == len2 && + !strncmp(vtbl[i].name, vtbl[n].name, len1)) { + ubi_err("volumes %d and %d have the same name \"%s\"", + i, n, vtbl[i].name); + ubi_dump_vtbl_record(&vtbl[i], i); + ubi_dump_vtbl_record(&vtbl[n], n); + return -EINVAL; + } + } + } + + return 0; + +bad: + ubi_err("volume table check failed: record %d, error %d", i, err); + ubi_dump_vtbl_record(&vtbl[i], i); + return -EINVAL; +} + +static int ubi_read_volume_table(struct ubi_scan_info *ubi, u32 pnum) +{ + int err = -EINVAL; + + empty_vtbl_record.crc = cpu_to_be32(0xf116c36b); + + err = ubi_io_read(ubi, &ubi->vtbl, pnum, ubi->leb_start, + sizeof(struct ubi_vtbl_record) * UBI_SPL_VOL_IDS); + if (err && err != UBI_IO_BITFLIPS) { + ubi_err("unable to read volume table"); + goto out; + } + + if (!vtbl_check(ubi, ubi->vtbl)) { + ubi->vtbl_valid = 1; + err = 0; + } +out: + return err; +} + +#endif /* CONFIG_SPL_UBI_LOAD_BY_VOLNAME */ + static int ubi_io_read_vid_hdr(struct ubi_scan_info *ubi, int pnum, struct ubi_vid_hdr *vh, int unused) { @@ -210,14 +391,23 @@ static int ubi_scan_vid_hdr(struct ubi_scan_info *ubi, struct ubi_vid_hdr *vh, if (vol_id == UBI_FM_SB_VOLUME_ID) return ubi->fm_enabled ? UBI_FASTMAP_ANCHOR : 0; +#ifdef CONFIG_SPL_UBI_LOAD_BY_VOLNAME + /* If this is a UBI volume table, read it and return */ + if (vol_id == UBI_LAYOUT_VOLUME_ID && !ubi->vtbl_valid) { + res = ubi_read_volume_table(ubi, pnum); + return res; + } +#endif + /* We only care about static volumes with an id < UBI_SPL_VOL_IDS */ if (vol_id >= UBI_SPL_VOL_IDS || vh->vol_type != UBI_VID_STATIC) return 0; +#ifndef CONFIG_SPL_UBI_LOAD_BY_VOLNAME /* We are only interested in the volumes to load */ if (!test_bit(vol_id, ubi->toload)) return 0; - +#endif lnum = be32_to_cpu(vh->lnum); return ubi_add_peb_to_vol(ubi, vh, vol_id, pnum, lnum); } @@ -232,13 +422,14 @@ static int assign_aeb_to_av(struct ubi_scan_info *ubi, u32 pnum, u32 lnum, ubi->fastmap_pebs++; +#ifndef CONFIG_SPL_UBI_LOAD_BY_VOLNAME if (vol_id >= UBI_SPL_VOL_IDS || vol_type != UBI_STATIC_VOLUME) return 0; /* We are only interested in the volumes to load */ if (!test_bit(vol_id, ubi->toload)) return 0; - +#endif vh = ubi->blockinfo + pnum; return ubi_scan_vid_hdr(ubi, vh, pnum); @@ -892,6 +1083,10 @@ retry: ubi->peb_count = info->peb_count; ubi->peb_offset = info->peb_offset; +#ifdef CONFIG_SPL_UBI_LOAD_BY_VOLNAME + ubi->vtbl_valid = 0; +#endif + fsize = info->peb_size * info->peb_count; ubi->fsize_mb = fsize >> 20; @@ -910,7 +1105,23 @@ retry: for (i = 0; i < nrvols; i++) { struct ubispl_load *lv = lvols + i; +#ifdef CONFIG_SPL_UBI_LOAD_BY_VOLNAME + if (lv->vol_id == -1) { + for (int j = 0; j < UBI_SPL_VOL_IDS; j++) { + int len = be16_to_cpu(ubi->vtbl[j].name_len); + + if (strncmp(lv->name, + ubi->vtbl[j].name, + len) == 0) { + lv->vol_id = j; + break; + } + } + } + ubi_msg("Loading VolName %s (VolId #%d)", lv->name, lv->vol_id); +#else ubi_msg("Loading VolId #%d", lv->vol_id); +#endif res = ipl_load(ubi, lv->vol_id, lv->load_addr); if (res < 0) { if (fastmap) { diff --git a/drivers/mtd/ubispl/ubispl.h b/drivers/mtd/ubispl/ubispl.h index 9e40b46eac..b7cb7fc941 100644 --- a/drivers/mtd/ubispl/ubispl.h +++ b/drivers/mtd/ubispl/ubispl.h @@ -77,6 +77,8 @@ struct ubi_vol_info { * @blockinfo: The vid headers of the scanned blocks * @volinfo: The volume information of the interesting (toload) * volumes + * @vtbl_corrupted: Flag to indicate status of volume table + * @vtbl: Volume table * * @fm_buf: The large fastmap attach buffer */ @@ -112,6 +114,11 @@ struct ubi_scan_info { struct ubi_vol_info volinfo[UBI_SPL_VOL_IDS]; struct ubi_vid_hdr blockinfo[CONFIG_SPL_UBI_MAX_PEBS]; +#ifdef CONFIG_SPL_UBI_LOAD_BY_VOLNAME + /* Volume table */ + int vtbl_valid; + struct ubi_vtbl_record vtbl[UBI_SPL_VOL_IDS]; +#endif /* The large buffer for the fastmap */ uint8_t fm_buf[UBI_FM_BUF_SIZE]; }; @@ -122,7 +129,7 @@ struct ubi_scan_info { #define ubi_dbg(fmt, ...) #endif -#ifdef CONFIG_UBI_SILENCE_MSG +#ifdef CONFIG_UBI_SPL_SILENCE_MSG #define ubi_msg(fmt, ...) #else #define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__) diff --git a/drivers/pci_endpoint/Kconfig b/drivers/pci_endpoint/Kconfig new file mode 100644 index 0000000000..19cfa0aafb --- /dev/null +++ b/drivers/pci_endpoint/Kconfig @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# PCI Endpoint Support +# + +menu "PCI Endpoint" + +config PCI_ENDPOINT + bool "PCI Endpoint Support" + depends on DM + help + Enable this configuration option to support configurable PCI + endpoints. This should be enabled if the platform has a PCI + controllers that can operate in endpoint mode (as a device + connected to PCI host or bridge). + +config PCIE_CADENCE_EP + bool "Cadence PCIe endpoint controller" + depends on PCI_ENDPOINT + help + Say Y here if you want to support the Cadence PCIe controller in + endpoint mode. This PCIe controller may be embedded into many + different vendors SoCs. + +config PCI_SANDBOX_EP + bool "Sandbox PCIe endpoint controller" + depends on PCI_ENDPOINT + help + Say Y here if you want to support the Sandbox PCIe controller in + endpoint mode. + The sandbox driver act as a dummy driver which stores and + retrieves PCIe endpoint configuration as is. + +endmenu diff --git a/drivers/pci_endpoint/Makefile b/drivers/pci_endpoint/Makefile new file mode 100644 index 0000000000..3cd987259d --- /dev/null +++ b/drivers/pci_endpoint/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# (C) Copyright 2019 +# Ramon Fried <ramon.fried@gmail.com> + +obj-y += pci_ep-uclass.o +obj-$(CONFIG_PCIE_CADENCE_EP) += pcie-cadence-ep.o +obj-$(CONFIG_PCI_SANDBOX_EP) += sandbox-pci_ep.o diff --git a/drivers/pci_endpoint/pci_ep-uclass.c b/drivers/pci_endpoint/pci_ep-uclass.c new file mode 100644 index 0000000000..2f9c70398d --- /dev/null +++ b/drivers/pci_endpoint/pci_ep-uclass.c @@ -0,0 +1,211 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * PCI Endpoint uclass + * + * Based on Linux PCI-EP driver written by + * Kishon Vijay Abraham I <kishon@ti.com> + * + * Copyright (c) 2019 + * Written by Ramon Fried <ramon.fried@gmail.com> + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <linux/log2.h> +#include <pci_ep.h> + +DECLARE_GLOBAL_DATA_PTR; + +int pci_ep_write_header(struct udevice *dev, uint fn, struct pci_ep_header *hdr) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->write_header) + return -ENOSYS; + + return ops->write_header(dev, fn, hdr); +} + +int pci_ep_read_header(struct udevice *dev, uint fn, struct pci_ep_header *hdr) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->read_header) + return -ENOSYS; + + return ops->read_header(dev, fn, hdr); +} + +int pci_ep_set_bar(struct udevice *dev, uint func_no, struct pci_bar *ep_bar) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + int flags = ep_bar->flags; + + /* Some basic bar validity checks */ + if (ep_bar->barno > BAR_5 || ep_bar < BAR_0) + return -EINVAL; + + if ((ep_bar->barno == BAR_5 && + (flags & PCI_BASE_ADDRESS_MEM_TYPE_64)) || + ((flags & PCI_BASE_ADDRESS_SPACE_IO) && + (flags & PCI_BASE_ADDRESS_IO_MASK)) || + (upper_32_bits(ep_bar->size) && + !(flags & PCI_BASE_ADDRESS_MEM_TYPE_64))) + return -EINVAL; + + if (!ops->set_bar) + return -ENOSYS; + + return ops->set_bar(dev, func_no, ep_bar); +} + +int pci_ep_read_bar(struct udevice *dev, uint func_no, struct pci_bar *ep_bar, + enum pci_barno barno) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + /* Some basic bar validity checks */ + if (barno > BAR_5 || barno < BAR_0) + return -EINVAL; + + if (!ops->read_bar) + return -ENOSYS; + + return ops->read_bar(dev, func_no, ep_bar, barno); +} + +int pci_ep_clear_bar(struct udevice *dev, uint func_num, enum pci_barno bar) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->clear_bar) + return -ENOSYS; + + return ops->clear_bar(dev, func_num, bar); +} + +int pci_ep_map_addr(struct udevice *dev, uint func_no, phys_addr_t addr, + u64 pci_addr, size_t size) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->map_addr) + return -ENOSYS; + + return ops->map_addr(dev, func_no, addr, pci_addr, size); +} + +int pci_ep_unmap_addr(struct udevice *dev, uint func_no, phys_addr_t addr) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->unmap_addr) + return -ENOSYS; + + return ops->unmap_addr(dev, func_no, addr); +} + +int pci_ep_set_msi(struct udevice *dev, uint func_no, uint interrupts) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + uint encode_int; + + if (interrupts > 32) + return -EINVAL; + + if (!ops->set_msi) + return -ENOSYS; + + /* MSI spec permits allocation of + * only 1, 2, 4, 8, 16, 32 interrupts + */ + encode_int = order_base_2(interrupts); + + return ops->set_msi(dev, func_no, encode_int); +} + +int pci_ep_get_msi(struct udevice *dev, uint func_no) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + int interrupt; + + if (!ops->get_msi) + return -ENOSYS; + + interrupt = ops->get_msi(dev, func_no); + + if (interrupt < 0) + return 0; + + /* Translate back from order base 2*/ + interrupt = 1 << interrupt; + + return interrupt; +} + +int pci_ep_set_msix(struct udevice *dev, uint func_no, uint interrupts) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (interrupts < 1 || interrupts > 2048) + return -EINVAL; + + if (!ops->set_msix) + return -ENOSYS; + + return ops->set_msix(dev, func_no, interrupts - 1); +} + +int pci_ep_get_msix(struct udevice *dev, uint func_no) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + int interrupt; + + if (!ops->get_msix) + return -ENOSYS; + + interrupt = ops->get_msix(dev, func_no); + + if (interrupt < 0) + return 0; + + return interrupt + 1; +} + +int pci_ep_raise_irq(struct udevice *dev, uint func_no, + enum pci_ep_irq_type type, uint interrupt_num) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->raise_irq) + return -ENOSYS; + + return ops->raise_irq(dev, func_no, type, interrupt_num); +} + +int pci_ep_start(struct udevice *dev) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->start) + return -ENOSYS; + + return ops->start(dev); +} + +int pci_ep_stop(struct udevice *dev) +{ + struct pci_ep_ops *ops = pci_ep_get_ops(dev); + + if (!ops->stop) + return -ENOSYS; + + return ops->stop(dev); +} + +UCLASS_DRIVER(pci_ep) = { + .id = UCLASS_PCI_EP, + .name = "pci_ep", + .flags = DM_UC_FLAG_SEQ_ALIAS, +}; diff --git a/drivers/pci_endpoint/pcie-cadence-ep.c b/drivers/pci_endpoint/pcie-cadence-ep.c new file mode 100644 index 0000000000..59231d340a --- /dev/null +++ b/drivers/pci_endpoint/pcie-cadence-ep.c @@ -0,0 +1,177 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2019 + * Written by Ramon Fried <ramon.fried@gmail.com> + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <pci_ep.h> +#include <linux/sizes.h> +#include <linux/log2.h> +#include "pcie-cadence.h" + +DECLARE_GLOBAL_DATA_PTR; + +static int cdns_write_header(struct udevice *dev, uint fn, + struct pci_ep_header *hdr) +{ + struct cdns_pcie *pcie = dev_get_priv(dev); + + cdns_pcie_ep_fn_writew(pcie, fn, PCI_DEVICE_ID, hdr->deviceid); + cdns_pcie_ep_fn_writeb(pcie, fn, PCI_REVISION_ID, hdr->revid); + cdns_pcie_ep_fn_writeb(pcie, fn, PCI_CLASS_PROG, + hdr->progif_code); + cdns_pcie_ep_fn_writew(pcie, fn, PCI_CLASS_DEVICE, + hdr->subclass_code | + hdr->baseclass_code << 8); + cdns_pcie_ep_fn_writeb(pcie, fn, PCI_CACHE_LINE_SIZE, + hdr->cache_line_size); + cdns_pcie_ep_fn_writew(pcie, fn, PCI_SUBSYSTEM_ID, + hdr->subsys_id); + cdns_pcie_ep_fn_writeb(pcie, fn, PCI_INTERRUPT_PIN, + hdr->interrupt_pin); + + /* + * Vendor ID can only be modified from function 0, all other functions + * use the same vendor ID as function 0. + */ + if (fn == 0) { + /* Update the vendor IDs. */ + u32 id = CDNS_PCIE_LM_ID_VENDOR(hdr->vendorid) | + CDNS_PCIE_LM_ID_SUBSYS(hdr->subsys_vendor_id); + + cdns_pcie_writel(pcie, CDNS_PCIE_LM_ID, id); + } + + return 0; +} + +static int cdns_set_bar(struct udevice *dev, uint fn, struct pci_bar *ep_bar) +{ + struct cdns_pcie *pcie = dev_get_priv(dev); + dma_addr_t bar_phys = ep_bar->phys_addr; + enum pci_barno bar = ep_bar->barno; + int flags = ep_bar->flags; + u32 addr0, addr1, reg, cfg, b, aperture, ctrl; + u64 sz; + + /* BAR size is 2^(aperture + 7) */ + sz = max_t(size_t, ep_bar->size, CDNS_PCIE_EP_MIN_APERTURE); + /* + * roundup_pow_of_two() returns an unsigned long, which is not suited + * for 64bit values. + */ + sz = 1ULL << fls64(sz - 1); + aperture = ilog2(sz) - 7; /* 128B -> 0, 256B -> 1, 512B -> 2, ... */ + + if ((flags & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO) { + ctrl = CDNS_PCIE_LM_BAR_CFG_CTRL_IO_32BITS; + } else { + bool is_prefetch = !!(flags & PCI_BASE_ADDRESS_MEM_PREFETCH); + bool is_64bits = (sz > SZ_2G) | + !!(ep_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64); + + if (is_64bits && (bar & 1)) + return -EINVAL; + + if (is_64bits && !(flags & PCI_BASE_ADDRESS_MEM_TYPE_64)) + ep_bar->flags |= PCI_BASE_ADDRESS_MEM_TYPE_64; + + if (is_64bits && is_prefetch) + ctrl = CDNS_PCIE_LM_BAR_CFG_CTRL_PREFETCH_MEM_64BITS; + else if (is_prefetch) + ctrl = CDNS_PCIE_LM_BAR_CFG_CTRL_PREFETCH_MEM_32BITS; + else if (is_64bits) + ctrl = CDNS_PCIE_LM_BAR_CFG_CTRL_MEM_64BITS; + else + ctrl = CDNS_PCIE_LM_BAR_CFG_CTRL_MEM_32BITS; + } + + addr0 = lower_32_bits(bar_phys); + addr1 = upper_32_bits(bar_phys); + cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar), + addr0); + cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar), + addr1); + + if (bar < BAR_4) { + reg = CDNS_PCIE_LM_EP_FUNC_BAR_CFG0(fn); + b = bar; + } else { + reg = CDNS_PCIE_LM_EP_FUNC_BAR_CFG1(fn); + b = bar - BAR_4; + } + + cfg = cdns_pcie_readl(pcie, reg); + cfg &= ~(CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_APERTURE_MASK(b) | + CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_CTRL_MASK(b)); + cfg |= (CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_APERTURE(b, aperture) | + CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_CTRL(b, ctrl)); + cdns_pcie_writel(pcie, reg, cfg); + + return 0; +} + +static int cdns_set_msi(struct udevice *dev, uint fn, uint mmc) +{ + struct cdns_pcie *pcie = dev_get_priv(dev); + u32 cap = CDNS_PCIE_EP_FUNC_MSI_CAP_OFFSET; + + /* + * Set the Multiple Message Capable bitfield into the Message Control + * register. + */ + u16 flags; + + flags = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_FLAGS); + flags = (flags & ~PCI_MSI_FLAGS_QMASK) | (mmc << 1); + flags |= PCI_MSI_FLAGS_64BIT; + flags &= ~PCI_MSI_FLAGS_MASKBIT; + cdns_pcie_ep_fn_writew(pcie, fn, cap + PCI_MSI_FLAGS, flags); + + return 0; +} + +static struct pci_ep_ops cdns_pci_ep_ops = { + .write_header = cdns_write_header, + .set_bar = cdns_set_bar, + .set_msi = cdns_set_msi, +}; + +static int cdns_pci_ep_probe(struct udevice *dev) +{ + struct cdns_pcie *pdata = dev_get_priv(dev); + + pdata->reg_base = (void __iomem *)devfdt_get_addr(dev); + if (!pdata->reg_base) + return -ENOMEM; + + pdata->max_functions = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), + "max-functions", 1); + pdata->max_regions = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), + "cdns,max-outbound-regions", 8); + + return 0; +} + +static int cdns_pci_ep_remove(struct udevice *dev) +{ + return 0; +} + +const struct udevice_id cadence_pci_ep_of_match[] = { + { .compatible = "cdns,cdns-pcie-ep" }, + { } +}; + +U_BOOT_DRIVER(cdns_pcie) = { + .name = "cdns,pcie-ep", + .id = UCLASS_PCI_EP, + .of_match = cadence_pci_ep_of_match, + .ops = &cdns_pci_ep_ops, + .probe = cdns_pci_ep_probe, + .remove = cdns_pci_ep_remove, + .priv_auto_alloc_size = sizeof(struct cdns_pcie), +}; diff --git a/drivers/pci_endpoint/pcie-cadence.h b/drivers/pci_endpoint/pcie-cadence.h new file mode 100644 index 0000000000..91630d35c3 --- /dev/null +++ b/drivers/pci_endpoint/pcie-cadence.h @@ -0,0 +1,309 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Cadence PCIe controlloer definitions + * Adapted from linux kernel driver. + * Copyright (c) 2017 Cadence + * + * Copyright (c) 2019 + * Written by Ramon Fried <ramon.fried@gmail.com> + */ + +#ifndef PCIE_CADENCE_H +#define PCIE_CADENCE_H + +#include <common.h> +#include <pci_ep.h> +#include <asm/io.h> + +/* + * Local Management Registers + */ +#define CDNS_PCIE_LM_BASE 0x00100000 + +/* Vendor ID Register */ +#define CDNS_PCIE_LM_ID (CDNS_PCIE_LM_BASE + 0x0044) +#define CDNS_PCIE_LM_ID_VENDOR_MASK GENMASK(15, 0) +#define CDNS_PCIE_LM_ID_VENDOR_SHIFT 0 +#define CDNS_PCIE_LM_ID_VENDOR(vid) \ + (((vid) << CDNS_PCIE_LM_ID_VENDOR_SHIFT) & CDNS_PCIE_LM_ID_VENDOR_MASK) +#define CDNS_PCIE_LM_ID_SUBSYS_MASK GENMASK(31, 16) +#define CDNS_PCIE_LM_ID_SUBSYS_SHIFT 16 +#define CDNS_PCIE_LM_ID_SUBSYS(sub) \ + (((sub) << CDNS_PCIE_LM_ID_SUBSYS_SHIFT) & CDNS_PCIE_LM_ID_SUBSYS_MASK) + +/* Root Port Requestor ID Register */ +#define CDNS_PCIE_LM_RP_RID (CDNS_PCIE_LM_BASE + 0x0228) +#define CDNS_PCIE_LM_RP_RID_MASK GENMASK(15, 0) +#define CDNS_PCIE_LM_RP_RID_SHIFT 0 +#define CDNS_PCIE_LM_RP_RID_(rid) \ + (((rid) << CDNS_PCIE_LM_RP_RID_SHIFT) & CDNS_PCIE_LM_RP_RID_MASK) + +/* Endpoint Bus and Device Number Register */ +#define CDNS_PCIE_LM_EP_ID (CDNS_PCIE_LM_BASE + 0x022c) +#define CDNS_PCIE_LM_EP_ID_DEV_MASK GENMASK(4, 0) +#define CDNS_PCIE_LM_EP_ID_DEV_SHIFT 0 +#define CDNS_PCIE_LM_EP_ID_BUS_MASK GENMASK(15, 8) +#define CDNS_PCIE_LM_EP_ID_BUS_SHIFT 8 + +/* Endpoint Function f BAR b Configuration Registers */ +#define CDNS_PCIE_LM_EP_FUNC_BAR_CFG0(fn) \ + (CDNS_PCIE_LM_BASE + 0x0240 + (fn) * 0x0008) +#define CDNS_PCIE_LM_EP_FUNC_BAR_CFG1(fn) \ + (CDNS_PCIE_LM_BASE + 0x0244 + (fn) * 0x0008) +#define CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_APERTURE_MASK(b) \ + (GENMASK(4, 0) << ((b) * 8)) +#define CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_APERTURE(b, a) \ + (((a) << ((b) * 8)) & CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_APERTURE_MASK(b)) +#define CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_CTRL_MASK(b) \ + (GENMASK(7, 5) << ((b) * 8)) +#define CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_CTRL(b, c) \ + (((c) << ((b) * 8 + 5)) & CDNS_PCIE_LM_EP_FUNC_BAR_CFG_BAR_CTRL_MASK(b)) + +/* Endpoint Function Configuration Register */ +#define CDNS_PCIE_LM_EP_FUNC_CFG (CDNS_PCIE_LM_BASE + 0x02c0) + +/* Root Complex BAR Configuration Register */ +#define CDNS_PCIE_LM_RC_BAR_CFG (CDNS_PCIE_LM_BASE + 0x0300) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR0_APERTURE_MASK GENMASK(5, 0) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR0_APERTURE(a) \ + (((a) << 0) & CDNS_PCIE_LM_RC_BAR_CFG_BAR0_APERTURE_MASK) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR0_CTRL_MASK GENMASK(8, 6) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR0_CTRL(c) \ + (((c) << 6) & CDNS_PCIE_LM_RC_BAR_CFG_BAR0_CTRL_MASK) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR1_APERTURE_MASK GENMASK(13, 9) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR1_APERTURE(a) \ + (((a) << 9) & CDNS_PCIE_LM_RC_BAR_CFG_BAR1_APERTURE_MASK) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR1_CTRL_MASK GENMASK(16, 14) +#define CDNS_PCIE_LM_RC_BAR_CFG_BAR1_CTRL(c) \ + (((c) << 14) & CDNS_PCIE_LM_RC_BAR_CFG_BAR1_CTRL_MASK) +#define CDNS_PCIE_LM_RC_BAR_CFG_PREFETCH_MEM_ENABLE BIT(17) +#define CDNS_PCIE_LM_RC_BAR_CFG_PREFETCH_MEM_32BITS 0 +#define CDNS_PCIE_LM_RC_BAR_CFG_PREFETCH_MEM_64BITS BIT(18) +#define CDNS_PCIE_LM_RC_BAR_CFG_IO_ENABLE BIT(19) +#define CDNS_PCIE_LM_RC_BAR_CFG_IO_16BITS 0 +#define CDNS_PCIE_LM_RC_BAR_CFG_IO_32BITS BIT(20) +#define CDNS_PCIE_LM_RC_BAR_CFG_CHECK_ENABLE BIT(31) + +/* BAR control values applicable to both Endpoint Function and Root Complex */ +#define CDNS_PCIE_LM_BAR_CFG_CTRL_DISABLED 0x0 +#define CDNS_PCIE_LM_BAR_CFG_CTRL_IO_32BITS 0x1 +#define CDNS_PCIE_LM_BAR_CFG_CTRL_MEM_32BITS 0x4 +#define CDNS_PCIE_LM_BAR_CFG_CTRL_PREFETCH_MEM_32BITS 0x5 +#define CDNS_PCIE_LM_BAR_CFG_CTRL_MEM_64BITS 0x6 +#define CDNS_PCIE_LM_BAR_CFG_CTRL_PREFETCH_MEM_64BITS 0x7 + +/* + * Endpoint Function Registers (PCI configuration space for endpoint functions) + */ +#define CDNS_PCIE_EP_FUNC_BASE(fn) (((fn) << 12) & GENMASK(19, 12)) + +#define CDNS_PCIE_EP_FUNC_MSI_CAP_OFFSET 0x90 + +/* + * Root Port Registers (PCI configuration space for the root port function) + */ +#define CDNS_PCIE_RP_BASE 0x00200000 + +/* + * Address Translation Registers + */ +#define CDNS_PCIE_AT_BASE 0x00400000 + +/* Region r Outbound AXI to PCIe Address Translation Register 0 */ +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0(r) \ + (CDNS_PCIE_AT_BASE + 0x0000 + ((r) & 0x1f) * 0x0020) +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_NBITS_MASK GENMASK(5, 0) +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_NBITS(nbits) \ + (((nbits) - 1) & CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_NBITS_MASK) +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_DEVFN_MASK GENMASK(19, 12) +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_DEVFN(devfn) \ + (((devfn) << 12) & CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_DEVFN_MASK) +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_BUS_MASK GENMASK(27, 20) +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_BUS(bus) \ + (((bus) << 20) & CDNS_PCIE_AT_OB_REGION_PCI_ADDR0_BUS_MASK) + +/* Region r Outbound AXI to PCIe Address Translation Register 1 */ +#define CDNS_PCIE_AT_OB_REGION_PCI_ADDR1(r) \ + (CDNS_PCIE_AT_BASE + 0x0004 + ((r) & 0x1f) * 0x0020) + +/* Region r Outbound PCIe Descriptor Register 0 */ +#define CDNS_PCIE_AT_OB_REGION_DESC0(r) \ + (CDNS_PCIE_AT_BASE + 0x0008 + ((r) & 0x1f) * 0x0020) +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_MASK GENMASK(3, 0) +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_MEM 0x2 +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_IO 0x6 +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_CONF_TYPE0 0xa +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_CONF_TYPE1 0xb +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_NORMAL_MSG 0xc +#define CDNS_PCIE_AT_OB_REGION_DESC0_TYPE_VENDOR_MSG 0xd +/* Bit 23 MUST be set in RC mode. */ +#define CDNS_PCIE_AT_OB_REGION_DESC0_HARDCODED_RID BIT(23) +#define CDNS_PCIE_AT_OB_REGION_DESC0_DEVFN_MASK GENMASK(31, 24) +#define CDNS_PCIE_AT_OB_REGION_DESC0_DEVFN(devfn) \ + (((devfn) << 24) & CDNS_PCIE_AT_OB_REGION_DESC0_DEVFN_MASK) + +/* Region r Outbound PCIe Descriptor Register 1 */ +#define CDNS_PCIE_AT_OB_REGION_DESC1(r) \ + (CDNS_PCIE_AT_BASE + 0x000c + ((r) & 0x1f) * 0x0020) +#define CDNS_PCIE_AT_OB_REGION_DESC1_BUS_MASK GENMASK(7, 0) +#define CDNS_PCIE_AT_OB_REGION_DESC1_BUS(bus) \ + ((bus) & CDNS_PCIE_AT_OB_REGION_DESC1_BUS_MASK) + +/* Region r AXI Region Base Address Register 0 */ +#define CDNS_PCIE_AT_OB_REGION_CPU_ADDR0(r) \ + (CDNS_PCIE_AT_BASE + 0x0018 + ((r) & 0x1f) * 0x0020) +#define CDNS_PCIE_AT_OB_REGION_CPU_ADDR0_NBITS_MASK GENMASK(5, 0) +#define CDNS_PCIE_AT_OB_REGION_CPU_ADDR0_NBITS(nbits) \ + (((nbits) - 1) & CDNS_PCIE_AT_OB_REGION_CPU_ADDR0_NBITS_MASK) + +/* Region r AXI Region Base Address Register 1 */ +#define CDNS_PCIE_AT_OB_REGION_CPU_ADDR1(r) \ + (CDNS_PCIE_AT_BASE + 0x001c + ((r) & 0x1f) * 0x0020) + +/* Root Port BAR Inbound PCIe to AXI Address Translation Register */ +#define CDNS_PCIE_AT_IB_RP_BAR_ADDR0(bar) \ + (CDNS_PCIE_AT_BASE + 0x0800 + (bar) * 0x0008) +#define CDNS_PCIE_AT_IB_RP_BAR_ADDR0_NBITS_MASK GENMASK(5, 0) +#define CDNS_PCIE_AT_IB_RP_BAR_ADDR0_NBITS(nbits) \ + (((nbits) - 1) & CDNS_PCIE_AT_IB_RP_BAR_ADDR0_NBITS_MASK) +#define CDNS_PCIE_AT_IB_RP_BAR_ADDR1(bar) \ + (CDNS_PCIE_AT_BASE + 0x0804 + (bar) * 0x0008) + +/* AXI link down register */ +#define CDNS_PCIE_AT_LINKDOWN (CDNS_PCIE_AT_BASE + 0x0824) + +enum cdns_pcie_rp_bar { + RP_BAR0, + RP_BAR1, + RP_NO_BAR +}; + +/* Endpoint Function BAR Inbound PCIe to AXI Address Translation Register */ +#define CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar) \ + (CDNS_PCIE_AT_BASE + 0x0840 + (fn) * 0x0040 + (bar) * 0x0008) +#define CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar) \ + (CDNS_PCIE_AT_BASE + 0x0844 + (fn) * 0x0040 + (bar) * 0x0008) + +/* Normal/Vendor specific message access: offset inside some outbound region */ +#define CDNS_PCIE_NORMAL_MSG_ROUTING_MASK GENMASK(7, 5) +#define CDNS_PCIE_NORMAL_MSG_ROUTING(route) \ + (((route) << 5) & CDNS_PCIE_NORMAL_MSG_ROUTING_MASK) +#define CDNS_PCIE_NORMAL_MSG_CODE_MASK GENMASK(15, 8) +#define CDNS_PCIE_NORMAL_MSG_CODE(code) \ + (((code) << 8) & CDNS_PCIE_NORMAL_MSG_CODE_MASK) +#define CDNS_PCIE_MSG_NO_DATA BIT(16) + +#define CDNS_PCIE_EP_MIN_APERTURE 128 /* 128 bytes */ + +enum cdns_pcie_msg_code { + MSG_CODE_ASSERT_INTA = 0x20, + MSG_CODE_ASSERT_INTB = 0x21, + MSG_CODE_ASSERT_INTC = 0x22, + MSG_CODE_ASSERT_INTD = 0x23, + MSG_CODE_DEASSERT_INTA = 0x24, + MSG_CODE_DEASSERT_INTB = 0x25, + MSG_CODE_DEASSERT_INTC = 0x26, + MSG_CODE_DEASSERT_INTD = 0x27, +}; + +enum cdns_pcie_msg_routing { + /* Route to Root Complex */ + MSG_ROUTING_TO_RC, + + /* Use Address Routing */ + MSG_ROUTING_BY_ADDR, + + /* Use ID Routing */ + MSG_ROUTING_BY_ID, + + /* Route as Broadcast Message from Root Complex */ + MSG_ROUTING_BCAST, + + /* Local message; terminate at receiver (INTx messages) */ + MSG_ROUTING_LOCAL, + + /* Gather & route to Root Complex (PME_TO_Ack message) */ + MSG_ROUTING_GATHER, +}; + +struct cdns_pcie { + void __iomem *reg_base; + u32 max_functions; + u32 max_regions; +}; + +/* Register access */ +static inline void cdns_pcie_writeb(struct cdns_pcie *pcie, u32 reg, u8 value) +{ + writeb(value, pcie->reg_base + reg); +} + +static inline void cdns_pcie_writew(struct cdns_pcie *pcie, u32 reg, u16 value) +{ + writew(value, pcie->reg_base + reg); +} + +static inline void cdns_pcie_writel(struct cdns_pcie *pcie, u32 reg, u32 value) +{ + writel(value, pcie->reg_base + reg); +} + +static inline u32 cdns_pcie_readl(struct cdns_pcie *pcie, u32 reg) +{ + return readl(pcie->reg_base + reg); +} + +/* Root Port register access */ +static inline void cdns_pcie_rp_writeb(struct cdns_pcie *pcie, + u32 reg, u8 value) +{ + writeb(value, pcie->reg_base + CDNS_PCIE_RP_BASE + reg); +} + +static inline void cdns_pcie_rp_writew(struct cdns_pcie *pcie, + u32 reg, u16 value) +{ + writew(value, pcie->reg_base + CDNS_PCIE_RP_BASE + reg); +} + +static inline void cdns_pcie_rp_writel(struct cdns_pcie *pcie, + u32 reg, u32 value) +{ + writel(value, pcie->reg_base + CDNS_PCIE_RP_BASE + reg); +} + +/* Endpoint Function register access */ +static inline void cdns_pcie_ep_fn_writeb(struct cdns_pcie *pcie, u8 fn, + u32 reg, u8 value) +{ + writeb(value, pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg); +} + +static inline void cdns_pcie_ep_fn_writew(struct cdns_pcie *pcie, u8 fn, + u32 reg, u16 value) +{ + writew(value, pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg); +} + +static inline void cdns_pcie_ep_fn_writel(struct cdns_pcie *pcie, u8 fn, + u32 reg, u32 value) +{ + writel(value, pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg); +} + +static inline u8 cdns_pcie_ep_fn_readb(struct cdns_pcie *pcie, u8 fn, u32 reg) +{ + return readb(pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg); +} + +static inline u16 cdns_pcie_ep_fn_readw(struct cdns_pcie *pcie, u8 fn, u32 reg) +{ + return readw(pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg); +} + +static inline u32 cdns_pcie_ep_fn_readl(struct cdns_pcie *pcie, u8 fn, u32 reg) +{ + return readl(pcie->reg_base + CDNS_PCIE_EP_FUNC_BASE(fn) + reg); +} + +#endif /* end of include guard: PCIE_CADENCE_H */ diff --git a/drivers/pci_endpoint/sandbox-pci_ep.c b/drivers/pci_endpoint/sandbox-pci_ep.c new file mode 100644 index 0000000000..0258433d8f --- /dev/null +++ b/drivers/pci_endpoint/sandbox-pci_ep.c @@ -0,0 +1,182 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2019 Ramon Fried <ramon.fried@gmail.com> + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <pci.h> +#include <pci_ep.h> +#include <asm/test.h> + +/** + * struct sandbox_pci_ep_priv - private data for driver + * @hdr: Stores the EP device header + * @msix: required MSIx count; + * @msi: required MSI count; + */ +struct sandbox_pci_ep_priv { + struct pci_ep_header hdr; + struct pci_bar bars[6]; + int msix; + int msi; + int irq_count; +}; + +/* Method exported for testing purposes */ +int sandbox_get_pci_ep_irq_count(struct udevice *dev) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + return priv->irq_count; +} + +static const struct udevice_id sandbox_pci_ep_ids[] = { + { .compatible = "sandbox,pci_ep" }, + { } +}; + +static int sandbox_write_header(struct udevice *dev, uint fn, + struct pci_ep_header *hdr) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + memcpy(&priv->hdr, hdr, sizeof(*hdr)); + + return 0; +} + +static int sandbox_read_header(struct udevice *dev, uint fn, + struct pci_ep_header *hdr) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + memcpy(hdr, &priv->hdr, sizeof(*hdr)); + + return 0; +} + +static int sandbox_set_bar(struct udevice *dev, uint fn, + struct pci_bar *ep_bar) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + int bar_idx; + + if (fn > 0) + return -ENODEV; + + bar_idx = ep_bar->barno; + + memcpy(&priv->bars[bar_idx], ep_bar, sizeof(*ep_bar)); + + return 0; +} + +static int sandbox_read_bar(struct udevice *dev, uint fn, + struct pci_bar *ep_bar, enum pci_barno barno) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + int bar_idx; + + if (fn > 0) + return -ENODEV; + + bar_idx = ep_bar->barno; + + memcpy(ep_bar, &priv->bars[bar_idx], sizeof(*ep_bar)); + + return 0; +} + +static int sandbox_set_msi(struct udevice *dev, uint fn, uint interrupts) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + priv->msi = interrupts; + + return 0; +} + +static int sandbox_get_msi(struct udevice *dev, uint fn) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + return priv->msi; +} + +static int sandbox_set_msix(struct udevice *dev, uint fn, uint interrupts) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + priv->msix = interrupts; + + return 0; +} + +static int sandbox_get_msix(struct udevice *dev, uint fn) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + return priv->msix; +} + +static int sandbox_raise_irq(struct udevice *dev, uint fn, + enum pci_ep_irq_type type, uint interrupt_num) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + if (fn > 0) + return -ENODEV; + + priv->irq_count++; + + return 0; +} + +static int sandbox_pci_ep_probe(struct udevice *dev) +{ + struct sandbox_pci_ep_priv *priv = dev_get_priv(dev); + + memset(priv, 0, sizeof(*priv)); + return 0; +} + +static struct pci_ep_ops sandbox_pci_ep_ops = { + .write_header = sandbox_write_header, + .read_header = sandbox_read_header, + .set_bar = sandbox_set_bar, + .read_bar = sandbox_read_bar, + .set_msi = sandbox_set_msi, + .get_msi = sandbox_get_msi, + .set_msix = sandbox_set_msix, + .get_msix = sandbox_get_msix, + .raise_irq = sandbox_raise_irq, +}; + +U_BOOT_DRIVER(pci_ep_sandbox) = { + .name = "pci_ep_sandbox", + .id = UCLASS_PCI_EP, + .of_match = sandbox_pci_ep_ids, + .probe = sandbox_pci_ep_probe, + .ops = &sandbox_pci_ep_ops, + .priv_auto_alloc_size = sizeof(struct sandbox_pci_ep_priv), +}; diff --git a/drivers/rtc/pcf2127.c b/drivers/rtc/pcf2127.c index dcf0340b4d..f6953505a5 100644 --- a/drivers/rtc/pcf2127.c +++ b/drivers/rtc/pcf2127.c @@ -22,14 +22,32 @@ #define PCF2127_REG_MO 0x08 #define PCF2127_REG_YR 0x09 +static int pcf2127_read_reg(struct udevice *dev, uint offset, + u8 *buffer, int len) +{ + struct dm_i2c_chip *chip = dev_get_parent_platdata(dev); + struct i2c_msg msg; + int ret; + + /* Set the address of the start register to be read */ + ret = dm_i2c_write(dev, offset, NULL, 0); + if (ret < 0) + return ret; + + /* Read register's data */ + msg.addr = chip->chip_addr; + msg.flags |= I2C_M_RD; + msg.len = len; + msg.buf = buffer; + + return dm_i2c_xfer(dev, &msg, 1); +} + static int pcf2127_rtc_set(struct udevice *dev, const struct rtc_time *tm) { - uchar buf[8]; + uchar buf[7] = {0}; int i = 0, ret; - /* start register address */ - buf[i++] = PCF2127_REG_SC; - /* hours, minutes and seconds */ buf[i++] = bin2bcd(tm->tm_sec); buf[i++] = bin2bcd(tm->tm_min); @@ -44,7 +62,7 @@ static int pcf2127_rtc_set(struct udevice *dev, const struct rtc_time *tm) buf[i++] = bin2bcd(tm->tm_year % 100); /* write register's data */ - ret = dm_i2c_write(dev, PCF2127_REG_CTRL1, buf, sizeof(buf)); + ret = dm_i2c_write(dev, PCF2127_REG_SC, buf, i); return ret; } @@ -54,10 +72,7 @@ static int pcf2127_rtc_get(struct udevice *dev, struct rtc_time *tm) int ret = 0; uchar buf[10] = { PCF2127_REG_CTRL1 }; - ret = dm_i2c_write(dev, PCF2127_REG_CTRL1, buf, 1); - if (ret < 0) - return ret; - ret = dm_i2c_read(dev, PCF2127_REG_CTRL1, buf, sizeof(buf)); + ret = pcf2127_read_reg(dev, PCF2127_REG_CTRL1, buf, sizeof(buf)); if (ret < 0) return ret; diff --git a/drivers/tpm/tpm2_tis_spi.c b/drivers/tpm/tpm2_tis_spi.c index 8878130bd7..7186c179d1 100644 --- a/drivers/tpm/tpm2_tis_spi.c +++ b/drivers/tpm/tpm2_tis_spi.c @@ -295,6 +295,14 @@ static int tpm_tis_spi_wait_for_stat(struct udevice *dev, u8 mask, return -ETIMEDOUT; } +static u8 tpm_tis_spi_valid_status(struct udevice *dev, u8 *status) +{ + struct tpm_chip *chip = dev_get_priv(dev); + + return tpm_tis_spi_wait_for_stat(dev, TPM_STS_VALID, + chip->timeout_c, status); +} + static int tpm_tis_spi_get_burstcount(struct udevice *dev) { struct tpm_chip *chip = dev_get_priv(dev); @@ -455,7 +463,7 @@ static int tpm_tis_spi_send(struct udevice *dev, const u8 *buf, size_t len) i += size; } - ret = tpm_tis_spi_status(dev, &status); + ret = tpm_tis_spi_valid_status(dev, &status); if (ret) goto out_err; @@ -469,7 +477,7 @@ static int tpm_tis_spi_send(struct udevice *dev, const u8 *buf, size_t len) if (ret) goto out_err; - ret = tpm_tis_spi_status(dev, &status); + ret = tpm_tis_spi_valid_status(dev, &status); if (ret) goto out_err; |