diff options
Diffstat (limited to 'target/linux/apm821xx/patches-4.4')
6 files changed, 1036 insertions, 0 deletions
diff --git a/target/linux/apm821xx/patches-4.4/202-add-netgear-wndr4700-support.patch b/target/linux/apm821xx/patches-4.4/202-add-netgear-wndr4700-support.patch new file mode 100644 index 0000000000..81531915ba --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/202-add-netgear-wndr4700-support.patch @@ -0,0 +1,32 @@ +--- a/arch/powerpc/platforms/44x/Makefile 2016-05-31 19:28:28.825973250 +0200 ++++ b/arch/powerpc/platforms/44x/Makefile 2016-05-31 19:28:22.135960329 +0200 +@@ -3,6 +3,7 @@ ifneq ($(CONFIG_PPC4xx_CPM),y) + obj-$(CONFIG_44x) += idle.o + endif + obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o ++obj-$(CONFIG_WNDR4700) += wndr4700.o + obj-$(CONFIG_EBONY) += ebony.o + obj-$(CONFIG_SAM440EP) += sam440ep.o + obj-$(CONFIG_WARP) += warp.o +--- a/arch/powerpc/platforms/44x/Kconfig 2016-05-31 19:33:57.049940191 +0200 ++++ b/arch/powerpc/platforms/44x/Kconfig 2016-05-31 19:30:01.699485861 +0200 +@@ -260,6 +260,19 @@ config ICON + help + This option enables support for the AMCC PPC440SPe evaluation board. + ++config WNDR4700 ++ bool "WNDR4700" ++ depends on 44x ++ default n ++ select APM821xx ++ select PCI_MSI ++ select PPC4xx_MSI ++ select PPC4xx_PCI_EXPRESS ++ select IBM_EMAC_RGMII ++ select 460EX ++ help ++ This option enables support for the Netgear WNDR4700/WNDR4720 board. ++ + config XILINX_VIRTEX440_GENERIC_BOARD + bool "Generic Xilinx Virtex 5 FXT board support" + depends on 44x diff --git a/target/linux/apm821xx/patches-4.4/301-fix-memory-map-wndr4700.patch b/target/linux/apm821xx/patches-4.4/301-fix-memory-map-wndr4700.patch new file mode 100644 index 0000000000..b44f8bba8a --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/301-fix-memory-map-wndr4700.patch @@ -0,0 +1,14 @@ +--- a/arch/powerpc/sysdev/ppc4xx_pci.c 2016-05-30 17:57:30.125498459 +0200 ++++ b/arch/powerpc/sysdev/ppc4xx_pci.c 2016-05-30 18:00:39.236007798 +0200 +@@ -1913,9 +1913,9 @@ static void __init ppc4xx_configure_pcie + * if it works + */ + out_le32(mbase + PECFG_PIM0LAL, 0x00000000); +- out_le32(mbase + PECFG_PIM0LAH, 0x00000000); ++ out_le32(mbase + PECFG_PIM0LAH, 0x00000008); + out_le32(mbase + PECFG_PIM1LAL, 0x00000000); +- out_le32(mbase + PECFG_PIM1LAH, 0x00000000); ++ out_le32(mbase + PECFG_PIM1LAH, 0x0000000c); + out_le32(mbase + PECFG_PIM01SAH, 0xffff0000); + out_le32(mbase + PECFG_PIM01SAL, 0x00000000); + diff --git a/target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch b/target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch new file mode 100644 index 0000000000..a1ca7c610e --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/702-powerpc_ibm_phy_add_dt_parser.patch @@ -0,0 +1,335 @@ +From 59b394d0d2b2e11687e757820c52d6470d15a9c5 Mon Sep 17 00:00:00 2001 +From: Christian Lamparter <chunkeey@gmail.com> +Date: Mon, 13 Jun 2016 15:42:21 +0200 +Subject: [PATCH] phy device tree support for emac + +--- + drivers/net/ethernet/ibm/emac/core.c | 261 +++++++++++++++++++++++++++++++++++ + drivers/net/ethernet/ibm/emac/core.h | 4 + + 2 files changed, 265 insertions(+) + +diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c +index 4c9771d..5a8a26c 100644 +--- a/drivers/net/ethernet/ibm/emac/core.c ++++ b/drivers/net/ethernet/ibm/emac/core.c +@@ -42,6 +42,7 @@ + #include <linux/of_address.h> + #include <linux/of_irq.h> + #include <linux/of_net.h> ++#include <linux/of_mdio.h> + #include <linux/slab.h> + + #include <asm/processor.h> +@@ -2383,6 +2384,246 @@ static int emac_read_uint_prop(struct device_node *np, const char *name, + return 0; + } + ++static void emac_adjust_link(struct net_device *ndev) ++{ ++ struct emac_instance *dev = netdev_priv(ndev); ++ struct phy_device *phy = dev->phy_dev; ++ ++ dev->phy.autoneg = phy->autoneg; ++ dev->phy.speed = phy->speed; ++ dev->phy.duplex = phy->duplex; ++ dev->phy.pause = phy->pause; ++ dev->phy.asym_pause = phy->asym_pause; ++ dev->phy.advertising = phy->advertising; ++} ++ ++static int emac_mii_bus_read(struct mii_bus *bus, int addr, int regnum) ++{ ++ return emac_mdio_read(bus->priv, addr, regnum); ++} ++ ++static int emac_mii_bus_write(struct mii_bus *bus, int addr, int regnum, u16 val) ++{ ++ emac_mdio_write(bus->priv, addr, regnum, val); ++ return 0; ++} ++ ++static int emac_mii_bus_reset(struct mii_bus *bus) ++{ ++ struct emac_instance *dev = netdev_priv(bus->priv); ++ ++ emac_mii_reset_phy(&dev->phy); ++ return 0; ++} ++ ++static int emac_mdio_setup_aneg(struct mii_phy *phy, u32 advertise) ++{ ++ struct net_device *ndev = phy->dev; ++ struct emac_instance *dev = netdev_priv(ndev); ++ ++ dev->phy.autoneg = AUTONEG_ENABLE; ++ dev->phy.speed = SPEED_1000; ++ dev->phy.duplex = DUPLEX_FULL; ++ dev->phy.advertising = advertise; ++ phy->autoneg = AUTONEG_ENABLE; ++ phy->speed = dev->phy.speed; ++ phy->duplex = dev->phy.duplex; ++ phy->advertising = advertise; ++ return phy_start_aneg(dev->phy_dev); ++} ++ ++static int emac_mdio_setup_forced(struct mii_phy *phy, int speed, int fd) ++{ ++ struct net_device *ndev = phy->dev; ++ struct emac_instance *dev = netdev_priv(ndev); ++ ++ dev->phy.autoneg = AUTONEG_DISABLE; ++ dev->phy.speed = speed; ++ dev->phy.duplex = fd; ++ phy->autoneg = AUTONEG_DISABLE; ++ phy->speed = speed; ++ phy->duplex = fd; ++ return phy_start_aneg(dev->phy_dev); ++} ++ ++static int emac_mdio_poll_link(struct mii_phy *phy) ++{ ++ struct net_device *ndev = phy->dev; ++ struct emac_instance *dev = netdev_priv(ndev); ++ int res; ++ ++ res = phy_read_status(dev->phy_dev); ++ if (res) { ++ dev_err(&dev->ndev->dev, "link update failed (%d).", res); ++ return ethtool_op_get_link(ndev); ++ } ++ ++ return dev->phy_dev->link; ++} ++ ++static int emac_mdio_read_link(struct mii_phy *phy) ++{ ++ struct net_device *ndev = phy->dev; ++ struct emac_instance *dev = netdev_priv(ndev); ++ int res; ++ ++ res = phy_read_status(dev->phy_dev); ++ if (res) ++ return res; ++ ++ dev->phy.speed = phy->speed; ++ dev->phy.duplex = phy->duplex; ++ dev->phy.pause = phy->pause; ++ dev->phy.asym_pause = phy->asym_pause; ++ return 0; ++} ++ ++static int emac_mdio_init_phy(struct mii_phy *phy) ++{ ++ struct net_device *ndev = phy->dev; ++ struct emac_instance *dev = netdev_priv(ndev); ++ ++ phy_start(dev->phy_dev); ++ dev->phy.autoneg = phy->autoneg; ++ dev->phy.speed = phy->speed; ++ dev->phy.duplex = phy->duplex; ++ dev->phy.advertising = phy->advertising; ++ dev->phy.pause = phy->pause; ++ dev->phy.asym_pause = phy->asym_pause; ++ ++ return phy_init_hw(dev->phy_dev); ++} ++ ++static const struct mii_phy_ops emac_dt_mdio_phy_ops = { ++ .init = emac_mdio_init_phy, ++ .setup_aneg = emac_mdio_setup_aneg, ++ .setup_forced = emac_mdio_setup_forced, ++ .poll_link = emac_mdio_poll_link, ++ .read_link = emac_mdio_read_link, ++}; ++ ++static void emac_dt_phy_mdio_cleanup(struct emac_instance *dev) ++{ ++ if (dev->mii_bus) { ++ if (dev->mii_bus->state == MDIOBUS_REGISTERED) ++ mdiobus_unregister(dev->mii_bus); ++ mdiobus_free(dev->mii_bus); ++ dev->mii_bus = NULL; ++ } ++ kfree(dev->phy.def); ++ dev->phy.def = NULL; ++} ++ ++static int emac_dt_mdio_probe(struct emac_instance *dev) ++{ ++ struct device_node *mii_np; ++ int res; ++ ++ mii_np = of_get_child_by_name(dev->ofdev->dev.of_node, "mdio"); ++ if (!mii_np) { ++ dev_err(&dev->ndev->dev, "no mdio definition found."); ++ return -ENODEV; ++ } ++ ++ if (!of_device_is_available(mii_np)) { ++ res = 1; ++ goto err_put_node; ++ } ++ ++ dev->mii_bus = mdiobus_alloc(); ++ if (!dev->mii_bus) { ++ res = -ENOMEM; ++ goto err_cleanup_mdio; ++ } ++ ++ dev->mii_bus->priv = dev->ndev; ++ dev->mii_bus->parent = dev->ndev->dev.parent; ++ dev->mii_bus->name = "emac_mdio"; ++ dev->mii_bus->read = &emac_mii_bus_read; ++ dev->mii_bus->write = &emac_mii_bus_write; ++ dev->mii_bus->reset = &emac_mii_bus_reset; ++ snprintf(dev->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev->mii_bus->name); ++ ++ res = of_mdiobus_register(dev->mii_bus, mii_np); ++ if (res) { ++ dev_err(&dev->ndev->dev, "cannot register MDIO bus %s (%d)", ++ dev->mii_bus->name, res); ++ goto err_cleanup_mdio; ++ } ++ of_node_put(mii_np); ++ return 0; ++ ++ err_cleanup_mdio: ++ emac_dt_phy_mdio_cleanup(dev); ++ err_put_node: ++ of_node_put(mii_np); ++ return res; ++} ++ ++static int emac_dt_phy_probe(struct emac_instance *dev, ++ struct device_node *phy_handle) ++{ ++ u32 phy_flags = 0; ++ int res; ++ ++ res = of_property_read_u32(phy_handle, "phy-flags", &phy_flags); ++ if (res < 0 && res != -EINVAL) ++ return res; ++ ++ dev->phy.def = kzalloc(sizeof(*dev->phy.def), GFP_KERNEL); ++ if (!dev->phy.def) ++ return -ENOMEM; ++ ++ dev->phy_dev = of_phy_connect(dev->ndev, phy_handle, ++ &emac_adjust_link, phy_flags, ++ PHY_INTERFACE_MODE_RGMII); ++ if (!dev->phy_dev) { ++ dev_err(&dev->ndev->dev, "failed to connect to PHY."); ++ kfree(dev->phy.dev); ++ dev->phy.dev = NULL; ++ return -ENODEV; ++ } ++ ++ dev->phy.def->phy_id = dev->phy_dev->drv->phy_id; ++ dev->phy.def->phy_id_mask = dev->phy_dev->drv->phy_id_mask; ++ dev->phy.def->name = dev->phy_dev->drv->name; ++ dev->phy.def->ops = &emac_dt_mdio_phy_ops; ++ dev->phy.features = dev->phy_dev->supported; ++ dev->phy.address = dev->phy_dev->addr; ++ dev->phy.mode = dev->phy_dev->interface; ++ return 0; ++} ++ ++static int emac_probe_dt_phy(struct emac_instance *dev) ++{ ++ struct device_node *np = dev->ofdev->dev.of_node; ++ struct device_node *phy_handle; ++ int res = 0; ++ ++ phy_handle = of_parse_phandle(np, "phy-handle", 0); ++ ++ if (phy_handle) { ++ res = emac_dt_mdio_probe(dev); ++ if (res) ++ goto out; ++ ++ res = emac_dt_phy_probe(dev, phy_handle); ++ if (res) { ++ emac_dt_phy_mdio_cleanup(dev); ++ goto out; ++ } ++ ++ return 1; ++ } ++ ++ out: ++ of_node_put(phy_handle); ++ /* if no phy device was specifie in the device tree, then we fallback ++ * to the old emac_phy.c probe code for compatibility reasons. ++ */ ++ return res; ++} ++ + static int emac_init_phy(struct emac_instance *dev) + { + struct device_node *np = dev->ofdev->dev.of_node; +@@ -2453,6 +2694,18 @@ static int emac_init_phy(struct emac_instance *dev) + + emac_configure(dev); + ++ if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII)) { ++ int res = emac_probe_dt_phy(dev); ++ ++ if (res == 1) ++ goto init_phy; ++ if (res < 0) ++ dev_err(&dev->ndev->dev, "failed to attach dt phy (%d).", ++ res); ++ ++ /* continue with old code */ ++ } ++ + if (dev->phy_address != 0xffffffff) + phy_map = ~(1 << dev->phy_address); + +@@ -2480,6 +2733,7 @@ static int emac_init_phy(struct emac_instance *dev) + return -ENXIO; + } + ++ init_phy: + /* Init PHY */ + if (dev->phy.def->ops->init) + dev->phy.def->ops->init(&dev->phy); +@@ -2898,6 +3152,8 @@ static int emac_probe(struct platform_device *ofdev) + /* I have a bad feeling about this ... */ + + err_detach_tah: ++ emac_dt_phy_mdio_cleanup(dev); ++ + if (emac_has_feature(dev, EMAC_FTR_HAS_TAH)) + tah_detach(dev->tah_dev, dev->tah_port); + err_detach_rgmii: +@@ -2948,6 +3204,11 @@ static int emac_remove(struct platform_device *ofdev) + if (emac_has_feature(dev, EMAC_FTR_HAS_ZMII)) + zmii_detach(dev->zmii_dev, dev->zmii_port); + ++ if (dev->phy_dev) ++ phy_disconnect(dev->phy_dev); ++ ++ emac_dt_phy_mdio_cleanup(dev); ++ + busy_phy_map &= ~(1 << dev->phy.address); + DBG(dev, "busy_phy_map now %#x" NL, busy_phy_map); + +diff --git a/drivers/net/ethernet/ibm/emac/core.h b/drivers/net/ethernet/ibm/emac/core.h +index 93ae114..0710a66 100644 +--- a/drivers/net/ethernet/ibm/emac/core.h ++++ b/drivers/net/ethernet/ibm/emac/core.h +@@ -199,6 +199,10 @@ struct emac_instance { + struct emac_instance *mdio_instance; + struct mutex mdio_lock; + ++ /* Device-tree based phy configuration */ ++ struct mii_bus *mii_bus; ++ struct phy_device *phy_dev; ++ + /* ZMII infos if any */ + u32 zmii_ph; + u32 zmii_port; +-- +2.1.4 + diff --git a/target/linux/apm821xx/patches-4.4/800-usb-dwc2-add-wndr4700-otg.patch b/target/linux/apm821xx/patches-4.4/800-usb-dwc2-add-wndr4700-otg.patch new file mode 100644 index 0000000000..24d267ef4a --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/800-usb-dwc2-add-wndr4700-otg.patch @@ -0,0 +1,48 @@ +--- a/drivers/usb/dwc2/platform.c 2016-05-26 21:39:41.347838639 +0200 ++++ b/drivers/usb/dwc2/platform.c 2016-05-26 21:44:01.554907417 +0200 +@@ -115,6 +115,37 @@ static const struct dwc2_core_params par + .hibernation = -1, + }; + ++static const struct dwc2_core_params params_wndr4700 = { ++ .otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE, ++ .otg_ver = -1, ++ .dma_enable = -1, ++ .dma_desc_enable = -1, ++ .speed = -1, ++ .enable_dynamic_fifo = -1, ++ .en_multiple_tx_fifo = -1, ++ .host_rx_fifo_size = -1, ++ .host_nperio_tx_fifo_size = -1, ++ .host_perio_tx_fifo_size = -1, ++ .max_transfer_size = -1, ++ .max_packet_count = -1, ++ .host_channels = -1, ++ .phy_type = -1, ++ .phy_utmi_width = -1, ++ .phy_ulpi_ddr = -1, ++ .phy_ulpi_ext_vbus = -1, ++ .i2c_enable = -1, ++ .ulpi_fs_ls = -1, ++ .host_support_fs_ls_low_power = -1, ++ .host_ls_low_power_phy_clk = -1, ++ .ts_dline = -1, ++ .reload_ctl = -1, ++ .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << ++ GAHBCFG_HBSTLEN_SHIFT, ++ .uframe_sched = -1, ++ .external_id_pin_ctl = -1, ++ .hibernation = -1, ++}; ++ + static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg) + { + struct platform_device *pdev = to_platform_device(hsotg->dev); +@@ -309,6 +340,7 @@ static int dwc2_driver_remove(struct pla + static const struct of_device_id dwc2_of_match_table[] = { + { .compatible = "brcm,bcm2835-usb", .data = ¶ms_bcm2835 }, + { .compatible = "rockchip,rk3066-usb", .data = ¶ms_rk3066 }, ++ { .compatible = "netgear,wndr4700-usb", .data = ¶ms_wndr4700 }, + { .compatible = "snps,dwc2", .data = NULL }, + { .compatible = "samsung,s3c6400-hsotg", .data = NULL}, + {}, diff --git a/target/linux/apm821xx/patches-4.4/801-usb-xhci-add-firmware-loader-for-uPD720201-and-uPD72.patch b/target/linux/apm821xx/patches-4.4/801-usb-xhci-add-firmware-loader-for-uPD720201-and-uPD72.patch new file mode 100644 index 0000000000..e56e95576d --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/801-usb-xhci-add-firmware-loader-for-uPD720201-and-uPD72.patch @@ -0,0 +1,550 @@ +From 419992bae5aaa4e06402e0b7c79fcf7bcb6b4764 Mon Sep 17 00:00:00 2001 +From: Christian Lamparter <chunkeey@googlemail.com> +Date: Thu, 2 Jun 2016 00:48:46 +0200 +Subject: [PATCH] usb: xhci: add firmware loader for uPD720201 and uPD720202 + w/o ROM + +This patch adds a firmware loader for the uPD720201K8-711-BAC-A +and uPD720202K8-711-BAA-A variant. Both of these chips are listed +in Renesas' R19UH0078EJ0500 Rev.5.00 "User's Manual: Hardware" as +devices which need the firmware loader on page 2 in order to +work as they "do not support the External ROM". + +The "Firmware Download Sequence" is describe in chapter +"7.1 FW Download Interface" R19UH0078EJ0500 Rev.5.00 page 131. + +The firmware "K2013080.mem" is available from a USB3.0 Host to +PCIe Adapter (PP2U-E card) "Firmware download" archive. An +alternative version can be sourced from Netgear's WNDR4700 GPL +archives. + +The release notes of the PP2U-E's "Firmware Download" ver 2.0.1.3 +(2012-06-15) state that the firmware is for the following devices: + - uPD720201 ES 2.0 sample whose revision ID is 2. + - uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3. + - uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2. + +If someone from Renesas is listening: It would be great, if these +firmwares could be added to linux-firmware.git. + +Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> +Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> +--- + drivers/usb/host/xhci-pci.c | 492 ++++++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 492 insertions(+) + +diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c +index 48672fa..328c891 100644 +--- a/drivers/usb/host/xhci-pci.c ++++ b/drivers/usb/host/xhci-pci.c +@@ -24,6 +24,8 @@ + #include <linux/slab.h> + #include <linux/module.h> + #include <linux/acpi.h> ++#include <linux/firmware.h> ++#include <asm/unaligned.h> + + #include "xhci.h" + #include "xhci-trace.h" +@@ -207,6 +209,458 @@ static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) + static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { } + #endif /* CONFIG_ACPI */ + ++static const struct renesas_fw_entry { ++ const char *firmware_name; ++ u16 device; ++ u8 revision; ++ u16 expected_version; ++} renesas_fw_table[] = { ++ /* ++ * Only the uPD720201K8-711-BAC-A or uPD720202K8-711-BAA-A ++ * are listed in R19UH0078EJ0500 Rev.5.00 as devices which ++ * need the software loader. ++ * ++ * PP2U/ReleaseNote_USB3-201-202-FW.txt: ++ * ++ * Note: This firmware is for the following devices. ++ * - uPD720201 ES 2.0 sample whose revision ID is 2. ++ * - uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3. ++ * - uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2. ++ */ ++ { "K2013080.mem", 0x0014, 0x02, 0x2013 }, ++ { "K2013080.mem", 0x0014, 0x03, 0x2013 }, ++ { "K2013080.mem", 0x0015, 0x02, 0x2013 }, ++}; ++ ++static const struct renesas_fw_entry *renesas_needs_fw_dl(struct pci_dev *dev) ++{ ++ const struct renesas_fw_entry *entry; ++ size_t i; ++ ++ /* This loader will only work with a RENESAS device. */ ++ if (!(dev->vendor == PCI_VENDOR_ID_RENESAS)) ++ return NULL; ++ ++ for (i = 0; i < ARRAY_SIZE(renesas_fw_table); i++) { ++ entry = &renesas_fw_table[i]; ++ if (entry->device == dev->device && ++ entry->revision == dev->revision) ++ return entry; ++ } ++ ++ return NULL; ++} ++ ++static int renesas_fw_download_image(struct pci_dev *dev, ++ const u32 *fw, ++ size_t step) ++{ ++ size_t i; ++ int err; ++ u8 fw_status; ++ bool data0_or_data1; ++ ++ /* ++ * The hardware does alternate between two 32-bit pages. ++ * (This is because each row of the firmware is 8 bytes). ++ * ++ * for even steps we use DATA0, for odd steps DATA1. ++ */ ++ data0_or_data1 = (step & 1) == 1; ++ ++ /* step+1. Read "Set DATAX" and confirm it is cleared. */ ++ for (i = 0; i < 10000; i++) { ++ err = pci_read_config_byte(dev, 0xF5, &fw_status); ++ if (err) ++ return pcibios_err_to_errno(err); ++ if (!(fw_status & BIT(data0_or_data1))) ++ break; ++ ++ udelay(1); ++ } ++ if (i == 10000) ++ return -ETIMEDOUT; ++ ++ /* ++ * step+2. Write FW data to "DATAX". ++ * "LSB is left" => force little endian ++ */ ++ err = pci_write_config_dword(dev, data0_or_data1 ? 0xFC : 0xF8, ++ (__force u32) cpu_to_le32(fw[step])); ++ if (err) ++ return pcibios_err_to_errno(err); ++ ++ udelay(100); ++ ++ /* step+3. Set "Set DATAX". */ ++ err = pci_write_config_byte(dev, 0xF5, BIT(data0_or_data1)); ++ if (err) ++ return pcibios_err_to_errno(err); ++ ++ return 0; ++} ++ ++static int renesas_fw_verify(struct pci_dev *dev, ++ const void *fw_data, ++ size_t length) ++{ ++ const struct renesas_fw_entry *entry = renesas_needs_fw_dl(dev); ++ u16 fw_version_pointer; ++ u16 fw_version; ++ ++ if (!entry) ++ return -EINVAL; ++ ++ /* ++ * The Firmware's Data Format is describe in ++ * "6.3 Data Format" R19UH0078EJ0500 Rev.5.00 page 124 ++ */ ++ ++ /* "Each row is 8 bytes". => firmware size must be a multiple of 8. */ ++ if (length % 8 != 0) { ++ dev_err(&dev->dev, "firmware size is not a multipe of 8."); ++ return -EINVAL; ++ } ++ ++ /* ++ * The bootrom chips of the big brother have sizes up to 64k, let's ++ * assume that's the biggest the firmware can get. ++ */ ++ if (length < 0x1000 || length >= 0x10000) { ++ dev_err(&dev->dev, "firmware is size %zd is not (4k - 64k).", ++ length); ++ return -EINVAL; ++ } ++ ++ /* The First 2 bytes are fixed value (55aa). "LSB on Left" */ ++ if (get_unaligned_le16(fw_data) != 0x55aa) { ++ dev_err(&dev->dev, "no valid firmware header found."); ++ return -EINVAL; ++ } ++ ++ /* verify the firmware version position and print it. */ ++ fw_version_pointer = get_unaligned_le16(fw_data + 4); ++ if (fw_version_pointer + 2 >= length) { ++ dev_err(&dev->dev, "firmware version pointer is outside of the firmware image."); ++ return -EINVAL; ++ } ++ ++ fw_version = get_unaligned_le16(fw_data + fw_version_pointer); ++ dev_dbg(&dev->dev, "got firmware version: %02x.", fw_version); ++ ++ if (fw_version != entry->expected_version) { ++ dev_err(&dev->dev, "firmware version mismatch, expected version: %02x.", ++ entry->expected_version); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static int renesas_fw_check_running(struct pci_dev *pdev) ++{ ++ int err; ++ u8 fw_state; ++ ++ /* ++ * Test if the device is actually needing the firmware. As most ++ * BIOSes will initialize the device for us. If the device is ++ * initialized. ++ */ ++ err = pci_read_config_byte(pdev, 0xF4, &fw_state); ++ if (err) ++ return pcibios_err_to_errno(err); ++ ++ /* ++ * Check if "FW Download Lock" is locked. If it is and the FW is ++ * ready we can simply continue. If the FW is not ready, we have ++ * to give up. ++ */ ++ if (fw_state & BIT(1)) { ++ dev_dbg(&pdev->dev, "FW Download Lock is engaged."); ++ ++ if (fw_state & BIT(4)) ++ return 0; ++ ++ dev_err(&pdev->dev, "FW Download Lock is set and FW is not ready. Giving Up."); ++ return -EIO; ++ } ++ ++ /* ++ * Check if "FW Download Enable" is set. If someone (us?) tampered ++ * with it and it can't be resetted, we have to give up too... and ++ * ask for a forgiveness and a reboot. ++ */ ++ if (fw_state & BIT(0)) { ++ dev_err(&pdev->dev, "FW Download Enable is stale. Giving Up (poweroff/reboot needed)."); ++ return -EIO; ++ } ++ ++ /* Otherwise, Check the "Result Code" Bits (6:4) and act accordingly */ ++ switch ((fw_state & 0x70)) { ++ case 0: /* No result yet */ ++ dev_dbg(&pdev->dev, "FW is not ready/loaded yet."); ++ ++ /* tell the caller, that this device needs the firmware. */ ++ return 1; ++ ++ case BIT(4): /* Success, device should be working. */ ++ dev_dbg(&pdev->dev, "FW is ready."); ++ return 0; ++ ++ case BIT(5): /* Error State */ ++ dev_err(&pdev->dev, "hardware is in an error state. Giving up (poweroff/reboot needed)."); ++ return -ENODEV; ++ ++ default: /* All other states are marked as "Reserved states" */ ++ dev_err(&pdev->dev, "hardware is in an invalid state %x. Giving up (poweroff/reboot needed).", ++ (fw_state & 0x70) >> 4); ++ return -EINVAL; ++ } ++} ++ ++static int renesas_hw_check_run_stop_busy(struct pci_dev *pdev) ++{ ++#if 0 ++ u32 val; ++ ++ /* ++ * 7.1.3 Note 3: "... must not set 'FW Download Enable' when ++ * 'RUN/STOP' of USBCMD Register is set" ++ */ ++ val = readl(hcd->regs + 0x20); ++ if (val & BIT(0)) { ++ dev_err(&pdev->dev, "hardware is busy and can't receive a FW."); ++ return -EBUSY; ++ } ++#endif ++ return 0; ++} ++ ++static int renesas_fw_download(struct pci_dev *pdev, ++ const struct firmware *fw, unsigned int retry_counter) ++{ ++ const u32 *fw_data = (const u32 *) fw->data; ++ size_t i; ++ int err; ++ u8 fw_status; ++ ++ /* ++ * For more information and the big picture: please look at the ++ * "Firmware Download Sequence" in "7.1 FW Download Interface" ++ * of R19UH0078EJ0500 Rev.5.00 page 131 ++ */ ++ err = renesas_hw_check_run_stop_busy(pdev); ++ if (err) ++ return err; ++ ++ /* ++ * 0. Set "FW Download Enable" bit in the ++ * "FW Download Control & Status Register" at 0xF4 ++ */ ++ err = pci_write_config_byte(pdev, 0xF4, BIT(0)); ++ if (err) ++ return pcibios_err_to_errno(err); ++ ++ /* 1 - 10 follow one step after the other. */ ++ for (i = 0; i < fw->size / 4; i++) { ++ err = renesas_fw_download_image(pdev, fw_data, i); ++ if (err) { ++ dev_err(&pdev->dev, "Firmware Download Step %zd failed at position %zd bytes with (%d).", ++ i, i * 4, err); ++ return err; ++ } ++ } ++ ++ /* ++ * This sequence continues until the last data is written to ++ * "DATA0" or "DATA1". Naturally, we wait until "SET DATA0/1" ++ * is cleared by the hardware beforehand. ++ */ ++ for (i = 0; i < 10000; i++) { ++ err = pci_read_config_byte(pdev, 0xF5, &fw_status); ++ if (err) ++ return pcibios_err_to_errno(err); ++ if (!(fw_status & (BIT(0) | BIT(1)))) ++ break; ++ ++ udelay(1); ++ } ++ if (i == 10000) ++ dev_warn(&pdev->dev, "Final Firmware Download step timed out."); ++ ++ /* ++ * 11. After finishing writing the last data of FW, the ++ * System Software must clear "FW Download Enable" ++ */ ++ err = pci_write_config_byte(pdev, 0xF4, 0); ++ if (err) ++ return pcibios_err_to_errno(err); ++ ++ /* 12. Read "Result Code" and confirm it is good. */ ++ for (i = 0; i < 10000; i++) { ++ err = pci_read_config_byte(pdev, 0xF4, &fw_status); ++ if (err) ++ return pcibios_err_to_errno(err); ++ if (fw_status & BIT(4)) ++ break; ++ ++ udelay(1); ++ } ++ if (i == 10000) { ++ /* Timed out / Error - let's see if we can fix this */ ++ err = renesas_fw_check_running(pdev); ++ switch (err) { ++ case 0: /* ++ * we shouldn't end up here. ++ * maybe it took a little bit longer. ++ * But all should be well? ++ */ ++ break; ++ ++ case 1: /* (No result yet? - we can try to retry) */ ++ if (retry_counter < 10) { ++ retry_counter++; ++ dev_warn(&pdev->dev, "Retry Firmware download: %d try.", ++ retry_counter); ++ return renesas_fw_download(pdev, fw, ++ retry_counter); ++ } ++ return -ETIMEDOUT; ++ ++ default: ++ return err; ++ } ++ } ++ /* ++ * Optional last step: Engage Firmware Lock ++ * ++ * err = pci_write_config_byte(pdev, 0xF4, BIT(2)); ++ * if (err) ++ * return pcibios_err_to_errno(err); ++ */ ++ ++ return 0; ++} ++ ++struct renesas_fw_ctx { ++ struct pci_dev *pdev; ++ const struct pci_device_id *id; ++ bool resume; ++}; ++ ++static int xhci_pci_probe(struct pci_dev *pdev, ++ const struct pci_device_id *id); ++ ++static void renesas_fw_callback(const struct firmware *fw, ++ void *context) ++{ ++ struct renesas_fw_ctx *ctx = context; ++ struct pci_dev *pdev = ctx->pdev; ++ struct device *parent = pdev->dev.parent; ++ int err = -ENOENT; ++ ++ if (fw) { ++ err = renesas_fw_verify(pdev, fw->data, fw->size); ++ if (!err) { ++ err = renesas_fw_download(pdev, fw, 0); ++ release_firmware(fw); ++ if (!err) { ++ if (ctx->resume) ++ return; ++ ++ err = xhci_pci_probe(pdev, ctx->id); ++ if (!err) { ++ /* everything worked */ ++ devm_kfree(&pdev->dev, ctx); ++ return; ++ } ++ ++ /* in case of an error - fall through */ ++ } else { ++ dev_err(&pdev->dev, "firmware failed to download (%d).", ++ err); ++ } ++ } ++ } else { ++ dev_err(&pdev->dev, "firmware failed to load (%d).", err); ++ } ++ ++ dev_info(&pdev->dev, "Unloading driver"); ++ ++ if (parent) ++ device_lock(parent); ++ ++ device_release_driver(&pdev->dev); ++ ++ if (parent) ++ device_unlock(parent); ++ ++ pci_dev_put(pdev); ++} ++ ++static int renesas_fw_alive_check(struct pci_dev *pdev) ++{ ++ const struct renesas_fw_entry *entry; ++ int err; ++ ++ /* check if we have a eligible RENESAS' uPD720201/2 w/o FW. */ ++ entry = renesas_needs_fw_dl(pdev); ++ if (!entry) ++ return 0; ++ ++ err = renesas_fw_check_running(pdev); ++ /* Also go ahead, if the firmware is running */ ++ if (err == 0) ++ return 0; ++ ++ /* At this point, we can be sure that the FW isn't ready. */ ++ return err; ++} ++ ++static int renesas_fw_download_to_hw(struct pci_dev *pdev, ++ const struct pci_device_id *id, ++ bool do_resume) ++{ ++ const struct renesas_fw_entry *entry; ++ struct renesas_fw_ctx *ctx; ++ int err; ++ ++ /* check if we have a eligible RENESAS' uPD720201/2 w/o FW. */ ++ entry = renesas_needs_fw_dl(pdev); ++ if (!entry) ++ return 0; ++ ++ err = renesas_fw_check_running(pdev); ++ /* Continue ahead, if the firmware is already running. */ ++ if (err == 0) ++ return 0; ++ ++ if (err != 1) ++ return err; ++ ++ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); ++ if (!ctx) ++ return -ENOMEM; ++ ctx->pdev = pdev; ++ ctx->resume = do_resume; ++ ctx->id = id; ++ ++ pci_dev_get(pdev); ++ err = request_firmware_nowait(THIS_MODULE, 1, entry->firmware_name, ++ &pdev->dev, GFP_KERNEL, ctx, renesas_fw_callback); ++ if (err) { ++ pci_dev_put(pdev); ++ return err; ++ } ++ ++ /* ++ * The renesas_fw_callback() callback will continue the probe ++ * process, once it aquires the firmware. ++ */ ++ return 1; ++} ++ + /* called during probe() after chip reset completes */ + static int xhci_pci_setup(struct usb_hcd *hcd) + { +@@ -246,6 +700,22 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) + struct hc_driver *driver; + struct usb_hcd *hcd; + ++ /* ++ * Check if this device is a RENESAS uPD720201/2 device. ++ * Otherwise, we can continue with xhci_pci_probe as usual. ++ */ ++ retval = renesas_fw_download_to_hw(dev, id, false); ++ switch (retval) { ++ case 0: ++ break; ++ ++ case 1: /* let it load the firmware and recontinue the probe. */ ++ return 0; ++ ++ default: ++ return retval; ++ }; ++ + driver = (struct hc_driver *)id->driver_data; + + /* Prevent runtime suspending between USB-2 and USB-3 initialization */ +@@ -303,6 +773,16 @@ static void xhci_pci_remove(struct pci_dev *dev) + { + struct xhci_hcd *xhci; + ++ if (renesas_fw_alive_check(dev)) { ++ /* ++ * bail out early, if this was a renesas device w/o FW. ++ * Else we might hit the NMI watchdog in xhci_handsake ++ * during xhci_reset as part of the driver's unloading. ++ * which we forced in the renesas_fw_callback(). ++ */ ++ return; ++ } ++ + xhci = hcd_to_xhci(pci_get_drvdata(dev)); + xhci->xhc_state |= XHCI_STATE_REMOVING; + if (xhci->shared_hcd) { +-- +2.8.1 + diff --git a/target/linux/apm821xx/patches-4.4/802-usb-xhci-force-msi-renesas-xhci.patch b/target/linux/apm821xx/patches-4.4/802-usb-xhci-force-msi-renesas-xhci.patch new file mode 100644 index 0000000000..a09e9dc41c --- /dev/null +++ b/target/linux/apm821xx/patches-4.4/802-usb-xhci-force-msi-renesas-xhci.patch @@ -0,0 +1,57 @@ +From a0dc613140bab907a3d5787a7ae7b0638bf674d0 Mon Sep 17 00:00:00 2001 +From: Christian Lamparter <chunkeey@gmail.com> +Date: Thu, 23 Jun 2016 20:28:20 +0200 +Subject: [PATCH] usb: xhci: force MSI for uPD720201 and + uPD720202 + +The APM82181 does not support MSI-X. When probed, it will +produce a noisy warning. + +--- + drivers/usb/host/pci-quirks.c | 362 ++++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 362 insertions(+) + +diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c +index 1c4d89e..555bd3f 100644 +--- a/drivers/usb/host/xhci-pci.c ++++ b/drivers/usb/host/xhci-pci.c +@@ -172,7 +172,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) + } + if (pdev->vendor == PCI_VENDOR_ID_RENESAS && + pdev->device == 0x0015) +- xhci->quirks |= XHCI_RESET_ON_RESUME; ++ xhci->quirks |= XHCI_RESET_ON_RESUME | XHCI_FORCE_MSI; + if (pdev->vendor == PCI_VENDOR_ID_VIA) + xhci->quirks |= XHCI_RESET_ON_RESUME; + +diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c +index 9e71c96..27cfcb9 100644 +--- a/drivers/usb/host/xhci.c ++++ b/drivers/usb/host/xhci.c +@@ -389,10 +389,14 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) + free_irq(hcd->irq, hcd); + hcd->irq = 0; + +- ret = xhci_setup_msix(xhci); +- if (ret) +- /* fall back to msi*/ ++ if (xhci->quirks & XHCI_FORCE_MSI) { + ret = xhci_setup_msi(xhci); ++ } else { ++ ret = xhci_setup_msix(xhci); ++ if (ret) ++ /* fall back to msi*/ ++ ret = xhci_setup_msi(xhci); ++ } + + if (!ret) + /* hcd->irq is 0, we have MSI */ +diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h +index 6b085aa..514dc3f 100644 +--- a/drivers/usb/host/xhci.h ++++ b/drivers/usb/host/xhci.h +@@ -1649,3 +1649,4 @@ struct xhci_hcd { + #define XHCI_BROKEN_STREAMS (1 << 19) + #define XHCI_PME_STUCK_QUIRK (1 << 20) ++#define XHCI_FORCE_MSI (1 << 24) + unsigned int num_active_eps; |