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-rw-r--r--target/linux/brcm47xx/patches-3.2/044-bcma-add-PCIe-host-controller.patch769
1 files changed, 0 insertions, 769 deletions
diff --git a/target/linux/brcm47xx/patches-3.2/044-bcma-add-PCIe-host-controller.patch b/target/linux/brcm47xx/patches-3.2/044-bcma-add-PCIe-host-controller.patch
index 850b52428..e5740693f 100644
--- a/target/linux/brcm47xx/patches-3.2/044-bcma-add-PCIe-host-controller.patch
+++ b/target/linux/brcm47xx/patches-3.2/044-bcma-add-PCIe-host-controller.patch
@@ -1,23 +1,3 @@
-From 47d0e8c2743729b4248585d33b55b6aaeac008d5 Mon Sep 17 00:00:00 2001
-From: Hauke Mehrtens <hauke@hauke-m.de>
-Date: Sun, 8 Jan 2012 16:53:15 +0100
-Subject: [PATCH 25/34] bcma: add PCIe host controller
-
-Some SoCs have a PCIe host controller to make it possible to attach
-some other devices to it, like an other Wifi card.
-This code was tested with an Netgear WNDR3400 (bcm4716 based), but
-should work with all bcma based SoCs.
-
-Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
----
- arch/mips/pci/pci-bcm47xx.c | 49 +++-
- drivers/bcma/bcma_private.h | 1 +
- drivers/bcma/driver_pci.c | 38 +--
- drivers/bcma/driver_pci_host.c | 576 +++++++++++++++++++++++++++++++++-
- include/linux/bcma/bcma_driver_pci.h | 34 ++
- include/linux/bcma/bcma_regs.h | 27 ++
- 6 files changed, 686 insertions(+), 39 deletions(-)
-
--- a/arch/mips/pci/pci-bcm47xx.c
+++ b/arch/mips/pci/pci-bcm47xx.c
@@ -25,6 +25,7 @@
@@ -94,752 +74,3 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+#endif
+ return 0;
+}
---- a/drivers/bcma/bcma_private.h
-+++ b/drivers/bcma/bcma_private.h
-@@ -60,6 +60,7 @@ extern void __exit bcma_host_pci_exit(vo
- #endif /* CONFIG_BCMA_HOST_PCI */
-
- #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
-+bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc);
- void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
- #endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
-
---- a/drivers/bcma/driver_pci.c
-+++ b/drivers/bcma/driver_pci.c
-@@ -2,7 +2,7 @@
- * Broadcom specific AMBA
- * PCI Core
- *
-- * Copyright 2005, Broadcom Corporation
-+ * Copyright 2005, 2011, Broadcom Corporation
- * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
- * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
- *
-@@ -179,47 +179,19 @@ static void __devinit bcma_core_pci_clie
- bcma_pcicore_serdes_workaround(pc);
- }
-
--static bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
--{
-- struct bcma_bus *bus = pc->core->bus;
-- u16 chipid_top;
--
-- chipid_top = (bus->chipinfo.id & 0xFF00);
-- if (chipid_top != 0x4700 &&
-- chipid_top != 0x5300)
-- return false;
--
--#ifdef CONFIG_SSB_DRIVER_PCICORE
-- if (bus->sprom.boardflags_lo & SSB_BFL_NOPCI)
-- return false;
--#endif /* CONFIG_SSB_DRIVER_PCICORE */
--
--#if 0
-- /* TODO: on BCMA we use address from EROM instead of magic formula */
-- u32 tmp;
-- return !mips_busprobe32(tmp, (bus->mmio +
-- (pc->core->core_index * BCMA_CORE_SIZE)));
--#endif
--
-- return true;
--}
--
- void __devinit bcma_core_pci_init(struct bcma_drv_pci *pc)
- {
- if (pc->setup_done)
- return;
-
-- if (bcma_core_pci_is_in_hostmode(pc)) {
- #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
-+ pc->hostmode = bcma_core_pci_is_in_hostmode(pc);
-+ if (pc->hostmode)
- bcma_core_pci_hostmode_init(pc);
--#else
-- pr_err("Driver compiled without support for hostmode PCI\n");
- #endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
-- } else {
-- bcma_core_pci_clientmode_init(pc);
-- }
-
-- pc->setup_done = true;
-+ if (!pc->hostmode)
-+ bcma_core_pci_clientmode_init(pc);
- }
-
- int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
---- a/drivers/bcma/driver_pci_host.c
-+++ b/drivers/bcma/driver_pci_host.c
-@@ -2,13 +2,587 @@
- * Broadcom specific AMBA
- * PCI Core in hostmode
- *
-+ * Copyright 2005 - 2011, Broadcom Corporation
-+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
-+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
-+ *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-
- #include "bcma_private.h"
-+#include <linux/export.h>
- #include <linux/bcma/bcma.h>
-+#include <asm/paccess.h>
-+
-+/* Probe a 32bit value on the bus and catch bus exceptions.
-+ * Returns nonzero on a bus exception.
-+ * This is MIPS specific */
-+#define mips_busprobe32(val, addr) get_dbe((val), ((u32 *)(addr)))
-+
-+/* Assume one-hot slot wiring */
-+#define BCMA_PCI_SLOT_MAX 16
-+#define PCI_CONFIG_SPACE_SIZE 256
-+
-+bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
-+{
-+ struct bcma_bus *bus = pc->core->bus;
-+ u16 chipid_top;
-+ u32 tmp;
-+
-+ chipid_top = (bus->chipinfo.id & 0xFF00);
-+ if (chipid_top != 0x4700 &&
-+ chipid_top != 0x5300)
-+ return false;
-+
-+ if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
-+ pr_info("This PCI core is disabled and not working\n");
-+ return false;
-+ }
-+
-+ bcma_core_enable(pc->core, 0);
-+
-+ return !mips_busprobe32(tmp, pc->core->io_addr);
-+}
-+
-+static u32 bcma_pcie_read_config(struct bcma_drv_pci *pc, u32 address)
-+{
-+ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_ADDR, address);
-+ pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_ADDR);
-+ return pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_DATA);
-+}
-+
-+static void bcma_pcie_write_config(struct bcma_drv_pci *pc, u32 address,
-+ u32 data)
-+{
-+ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_ADDR, address);
-+ pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_ADDR);
-+ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_DATA, data);
-+}
-+
-+static u32 bcma_get_cfgspace_addr(struct bcma_drv_pci *pc, unsigned int dev,
-+ unsigned int func, unsigned int off)
-+{
-+ u32 addr = 0;
-+
-+ /* Issue config commands only when the data link is up (atleast
-+ * one external pcie device is present).
-+ */
-+ if (dev >= 2 || !(bcma_pcie_read(pc, BCMA_CORE_PCI_DLLP_LSREG)
-+ & BCMA_CORE_PCI_DLLP_LSREG_LINKUP))
-+ goto out;
-+
-+ /* Type 0 transaction */
-+ /* Slide the PCI window to the appropriate slot */
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI1, BCMA_CORE_PCI_SBTOPCI_CFG0);
-+ /* Calculate the address */
-+ addr = pc->host_controller->host_cfg_addr;
-+ addr |= (dev << BCMA_CORE_PCI_CFG_SLOT_SHIFT);
-+ addr |= (func << BCMA_CORE_PCI_CFG_FUN_SHIFT);
-+ addr |= (off & ~3);
-+
-+out:
-+ return addr;
-+}
-+
-+static int bcma_extpci_read_config(struct bcma_drv_pci *pc, unsigned int dev,
-+ unsigned int func, unsigned int off,
-+ void *buf, int len)
-+{
-+ int err = -EINVAL;
-+ u32 addr, val;
-+ void __iomem *mmio = 0;
-+
-+ WARN_ON(!pc->hostmode);
-+ if (unlikely(len != 1 && len != 2 && len != 4))
-+ goto out;
-+ if (dev == 0) {
-+ /* we support only two functions on device 0 */
-+ if (func > 1)
-+ return -EINVAL;
-+
-+ /* accesses to config registers with offsets >= 256
-+ * requires indirect access.
-+ */
-+ if (off >= PCI_CONFIG_SPACE_SIZE) {
-+ addr = (func << 12);
-+ addr |= (off & 0x0FFF);
-+ val = bcma_pcie_read_config(pc, addr);
-+ } else {
-+ addr = BCMA_CORE_PCI_PCICFG0;
-+ addr |= (func << 8);
-+ addr |= (off & 0xfc);
-+ val = pcicore_read32(pc, addr);
-+ }
-+ } else {
-+ addr = bcma_get_cfgspace_addr(pc, dev, func, off);
-+ if (unlikely(!addr))
-+ goto out;
-+ err = -ENOMEM;
-+ mmio = ioremap_nocache(addr, len);
-+ if (!mmio)
-+ goto out;
-+
-+ if (mips_busprobe32(val, mmio)) {
-+ val = 0xffffffff;
-+ goto unmap;
-+ }
-+
-+ val = readl(mmio);
-+ }
-+ val >>= (8 * (off & 3));
-+
-+ switch (len) {
-+ case 1:
-+ *((u8 *)buf) = (u8)val;
-+ break;
-+ case 2:
-+ *((u16 *)buf) = (u16)val;
-+ break;
-+ case 4:
-+ *((u32 *)buf) = (u32)val;
-+ break;
-+ }
-+ err = 0;
-+unmap:
-+ if (mmio)
-+ iounmap(mmio);
-+out:
-+ return err;
-+}
-+
-+static int bcma_extpci_write_config(struct bcma_drv_pci *pc, unsigned int dev,
-+ unsigned int func, unsigned int off,
-+ const void *buf, int len)
-+{
-+ int err = -EINVAL;
-+ u32 addr = 0, val = 0;
-+ void __iomem *mmio = 0;
-+ u16 chipid = pc->core->bus->chipinfo.id;
-+
-+ WARN_ON(!pc->hostmode);
-+ if (unlikely(len != 1 && len != 2 && len != 4))
-+ goto out;
-+ if (dev == 0) {
-+ /* accesses to config registers with offsets >= 256
-+ * requires indirect access.
-+ */
-+ if (off < PCI_CONFIG_SPACE_SIZE) {
-+ addr = pc->core->addr + BCMA_CORE_PCI_PCICFG0;
-+ addr |= (func << 8);
-+ addr |= (off & 0xfc);
-+ mmio = ioremap_nocache(addr, len);
-+ if (!mmio)
-+ goto out;
-+ }
-+ } else {
-+ addr = bcma_get_cfgspace_addr(pc, dev, func, off);
-+ if (unlikely(!addr))
-+ goto out;
-+ err = -ENOMEM;
-+ mmio = ioremap_nocache(addr, len);
-+ if (!mmio)
-+ goto out;
-+
-+ if (mips_busprobe32(val, mmio)) {
-+ val = 0xffffffff;
-+ goto unmap;
-+ }
-+ }
-+
-+ switch (len) {
-+ case 1:
-+ val = readl(mmio);
-+ val &= ~(0xFF << (8 * (off & 3)));
-+ val |= *((const u8 *)buf) << (8 * (off & 3));
-+ break;
-+ case 2:
-+ val = readl(mmio);
-+ val &= ~(0xFFFF << (8 * (off & 3)));
-+ val |= *((const u16 *)buf) << (8 * (off & 3));
-+ break;
-+ case 4:
-+ val = *((const u32 *)buf);
-+ break;
-+ }
-+ if (dev == 0 && !addr) {
-+ /* accesses to config registers with offsets >= 256
-+ * requires indirect access.
-+ */
-+ addr = (func << 12);
-+ addr |= (off & 0x0FFF);
-+ bcma_pcie_write_config(pc, addr, val);
-+ } else {
-+ writel(val, mmio);
-+
-+ if (chipid == 0x4716 || chipid == 0x4748)
-+ readl(mmio);
-+ }
-+
-+ err = 0;
-+unmap:
-+ if (mmio)
-+ iounmap(mmio);
-+out:
-+ return err;
-+}
-+
-+static int bcma_core_pci_hostmode_read_config(struct pci_bus *bus,
-+ unsigned int devfn,
-+ int reg, int size, u32 *val)
-+{
-+ unsigned long flags;
-+ int err;
-+ struct bcma_drv_pci *pc;
-+ struct bcma_drv_pci_host *pc_host;
-+
-+ pc_host = container_of(bus->ops, struct bcma_drv_pci_host, pci_ops);
-+ pc = pc_host->pdev;
-+
-+ spin_lock_irqsave(&pc_host->cfgspace_lock, flags);
-+ err = bcma_extpci_read_config(pc, PCI_SLOT(devfn),
-+ PCI_FUNC(devfn), reg, val, size);
-+ spin_unlock_irqrestore(&pc_host->cfgspace_lock, flags);
-+
-+ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-+}
-+
-+static int bcma_core_pci_hostmode_write_config(struct pci_bus *bus,
-+ unsigned int devfn,
-+ int reg, int size, u32 val)
-+{
-+ unsigned long flags;
-+ int err;
-+ struct bcma_drv_pci *pc;
-+ struct bcma_drv_pci_host *pc_host;
-+
-+ pc_host = container_of(bus->ops, struct bcma_drv_pci_host, pci_ops);
-+ pc = pc_host->pdev;
-+
-+ spin_lock_irqsave(&pc_host->cfgspace_lock, flags);
-+ err = bcma_extpci_write_config(pc, PCI_SLOT(devfn),
-+ PCI_FUNC(devfn), reg, &val, size);
-+ spin_unlock_irqrestore(&pc_host->cfgspace_lock, flags);
-+
-+ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-+}
-+
-+/* return cap_offset if requested capability exists in the PCI config space */
-+static u8 __devinit bcma_find_pci_capability(struct bcma_drv_pci *pc,
-+ unsigned int dev,
-+ unsigned int func, u8 req_cap_id,
-+ unsigned char *buf, u32 *buflen)
-+{
-+ u8 cap_id;
-+ u8 cap_ptr = 0;
-+ u32 bufsize;
-+ u8 byte_val;
-+
-+ /* check for Header type 0 */
-+ bcma_extpci_read_config(pc, dev, func, PCI_HEADER_TYPE, &byte_val,
-+ sizeof(u8));
-+ if ((byte_val & 0x7f) != PCI_HEADER_TYPE_NORMAL)
-+ return cap_ptr;
-+
-+ /* check if the capability pointer field exists */
-+ bcma_extpci_read_config(pc, dev, func, PCI_STATUS, &byte_val,
-+ sizeof(u8));
-+ if (!(byte_val & PCI_STATUS_CAP_LIST))
-+ return cap_ptr;
-+
-+ /* check if the capability pointer is 0x00 */
-+ bcma_extpci_read_config(pc, dev, func, PCI_CAPABILITY_LIST, &cap_ptr,
-+ sizeof(u8));
-+ if (cap_ptr == 0x00)
-+ return cap_ptr;
-+
-+ /* loop thr'u the capability list and see if the requested capabilty
-+ * exists */
-+ bcma_extpci_read_config(pc, dev, func, cap_ptr, &cap_id, sizeof(u8));
-+ while (cap_id != req_cap_id) {
-+ bcma_extpci_read_config(pc, dev, func, cap_ptr + 1, &cap_ptr,
-+ sizeof(u8));
-+ if (cap_ptr == 0x00)
-+ return cap_ptr;
-+ bcma_extpci_read_config(pc, dev, func, cap_ptr, &cap_id,
-+ sizeof(u8));
-+ }
-+
-+ /* found the caller requested capability */
-+ if ((buf != NULL) && (buflen != NULL)) {
-+ u8 cap_data;
-+
-+ bufsize = *buflen;
-+ if (!bufsize)
-+ return cap_ptr;
-+
-+ *buflen = 0;
-+
-+ /* copy the cpability data excluding cap ID and next ptr */
-+ cap_data = cap_ptr + 2;
-+ if ((bufsize + cap_data) > PCI_CONFIG_SPACE_SIZE)
-+ bufsize = PCI_CONFIG_SPACE_SIZE - cap_data;
-+ *buflen = bufsize;
-+ while (bufsize--) {
-+ bcma_extpci_read_config(pc, dev, func, cap_data, buf,
-+ sizeof(u8));
-+ cap_data++;
-+ buf++;
-+ }
-+ }
-+
-+ return cap_ptr;
-+}
-+
-+/* If the root port is capable of returning Config Request
-+ * Retry Status (CRS) Completion Status to software then
-+ * enable the feature.
-+ */
-+static void __devinit bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
-+{
-+ u8 cap_ptr, root_ctrl, root_cap, dev;
-+ u16 val16;
-+ int i;
-+
-+ cap_ptr = bcma_find_pci_capability(pc, 0, 0, PCI_CAP_ID_EXP, NULL,
-+ NULL);
-+ root_cap = cap_ptr + PCI_EXP_RTCAP;
-+ bcma_extpci_read_config(pc, 0, 0, root_cap, &val16, sizeof(u16));
-+ if (val16 & BCMA_CORE_PCI_RC_CRS_VISIBILITY) {
-+ /* Enable CRS software visibility */
-+ root_ctrl = cap_ptr + PCI_EXP_RTCTL;
-+ val16 = PCI_EXP_RTCTL_CRSSVE;
-+ bcma_extpci_read_config(pc, 0, 0, root_ctrl, &val16,
-+ sizeof(u16));
-+
-+ /* Initiate a configuration request to read the vendor id
-+ * field of the device function's config space header after
-+ * 100 ms wait time from the end of Reset. If the device is
-+ * not done with its internal initialization, it must at
-+ * least return a completion TLP, with a completion status
-+ * of "Configuration Request Retry Status (CRS)". The root
-+ * complex must complete the request to the host by returning
-+ * a read-data value of 0001h for the Vendor ID field and
-+ * all 1s for any additional bytes included in the request.
-+ * Poll using the config reads for max wait time of 1 sec or
-+ * until we receive the successful completion status. Repeat
-+ * the procedure for all the devices.
-+ */
-+ for (dev = 1; dev < BCMA_PCI_SLOT_MAX; dev++) {
-+ for (i = 0; i < 100000; i++) {
-+ bcma_extpci_read_config(pc, dev, 0,
-+ PCI_VENDOR_ID, &val16,
-+ sizeof(val16));
-+ if (val16 != 0x1)
-+ break;
-+ udelay(10);
-+ }
-+ if (val16 == 0x1)
-+ pr_err("PCI: Broken device in slot %d\n", dev);
-+ }
-+ }
-+}
-
- void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
- {
-- pr_err("No support for PCI core in hostmode yet\n");
-+ struct bcma_bus *bus = pc->core->bus;
-+ struct bcma_drv_pci_host *pc_host;
-+ u32 tmp;
-+ u32 pci_membase_1G;
-+ unsigned long io_map_base;
-+
-+ pr_info("PCIEcore in host mode found\n");
-+
-+ pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL);
-+ if (!pc_host) {
-+ pr_err("can not allocate memory");
-+ return;
-+ }
-+
-+ pc->host_controller = pc_host;
-+ pc_host->pci_controller.io_resource = &pc_host->io_resource;
-+ pc_host->pci_controller.mem_resource = &pc_host->mem_resource;
-+ pc_host->pci_controller.pci_ops = &pc_host->pci_ops;
-+ pc_host->pdev = pc;
-+
-+ pci_membase_1G = BCMA_SOC_PCI_DMA;
-+ pc_host->host_cfg_addr = BCMA_SOC_PCI_CFG;
-+
-+ pc_host->pci_ops.read = bcma_core_pci_hostmode_read_config;
-+ pc_host->pci_ops.write = bcma_core_pci_hostmode_write_config;
-+
-+ pc_host->mem_resource.name = "BCMA PCIcore external memory",
-+ pc_host->mem_resource.start = BCMA_SOC_PCI_DMA;
-+ pc_host->mem_resource.end = BCMA_SOC_PCI_DMA + BCMA_SOC_PCI_DMA_SZ - 1;
-+ pc_host->mem_resource.flags = IORESOURCE_MEM | IORESOURCE_PCI_FIXED;
-+
-+ pc_host->io_resource.name = "BCMA PCIcore external I/O",
-+ pc_host->io_resource.start = 0x100;
-+ pc_host->io_resource.end = 0x7FF;
-+ pc_host->io_resource.flags = IORESOURCE_IO | IORESOURCE_PCI_FIXED;
-+
-+ /* Reset RC */
-+ udelay(3000);
-+ pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST_OE);
-+ udelay(1000);
-+ pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST |
-+ BCMA_CORE_PCI_CTL_RST_OE);
-+
-+ /* 64 MB I/O access window. On 4716, use
-+ * sbtopcie0 to access the device registers. We
-+ * can't use address match 2 (1 GB window) region
-+ * as mips can't generate 64-bit address on the
-+ * backplane.
-+ */
-+ if (bus->chipinfo.id == 0x4716 || bus->chipinfo.id == 0x4748) {
-+ pc_host->mem_resource.start = BCMA_SOC_PCI_MEM;
-+ pc_host->mem_resource.end = BCMA_SOC_PCI_MEM +
-+ BCMA_SOC_PCI_MEM_SZ - 1;
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0,
-+ BCMA_CORE_PCI_SBTOPCI_MEM | BCMA_SOC_PCI_MEM);
-+ } else if (bus->chipinfo.id == 0x5300) {
-+ tmp = BCMA_CORE_PCI_SBTOPCI_MEM;
-+ tmp |= BCMA_CORE_PCI_SBTOPCI_PREF;
-+ tmp |= BCMA_CORE_PCI_SBTOPCI_BURST;
-+ if (pc->core->core_unit == 0) {
-+ pc_host->mem_resource.start = BCMA_SOC_PCI_MEM;
-+ pc_host->mem_resource.end = BCMA_SOC_PCI_MEM +
-+ BCMA_SOC_PCI_MEM_SZ - 1;
-+ pci_membase_1G = BCMA_SOC_PCIE_DMA_H32;
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0,
-+ tmp | BCMA_SOC_PCI_MEM);
-+ } else if (pc->core->core_unit == 1) {
-+ pc_host->mem_resource.start = BCMA_SOC_PCI1_MEM;
-+ pc_host->mem_resource.end = BCMA_SOC_PCI1_MEM +
-+ BCMA_SOC_PCI_MEM_SZ - 1;
-+ pci_membase_1G = BCMA_SOC_PCIE1_DMA_H32;
-+ pc_host->host_cfg_addr = BCMA_SOC_PCI1_CFG;
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0,
-+ tmp | BCMA_SOC_PCI1_MEM);
-+ }
-+ } else
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0,
-+ BCMA_CORE_PCI_SBTOPCI_IO);
-+
-+ /* 64 MB configuration access window */
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI1, BCMA_CORE_PCI_SBTOPCI_CFG0);
-+
-+ /* 1 GB memory access window */
-+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI2,
-+ BCMA_CORE_PCI_SBTOPCI_MEM | pci_membase_1G);
-+
-+
-+ /* As per PCI Express Base Spec 1.1 we need to wait for
-+ * at least 100 ms from the end of a reset (cold/warm/hot)
-+ * before issuing configuration requests to PCI Express
-+ * devices.
-+ */
-+ udelay(100000);
-+
-+ bcma_core_pci_enable_crs(pc);
-+
-+ /* Enable PCI bridge BAR0 memory & master access */
-+ tmp = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
-+ bcma_extpci_write_config(pc, 0, 0, PCI_COMMAND, &tmp, sizeof(tmp));
-+
-+ /* Enable PCI interrupts */
-+ pcicore_write32(pc, BCMA_CORE_PCI_IMASK, BCMA_CORE_PCI_IMASK_INTA);
-+
-+ /* Ok, ready to run, register it to the system.
-+ * The following needs change, if we want to port hostmode
-+ * to non-MIPS platform. */
-+ io_map_base = (unsigned long)ioremap_nocache(BCMA_SOC_PCI_MEM,
-+ 0x04000000);
-+ pc_host->pci_controller.io_map_base = io_map_base;
-+ set_io_port_base(pc_host->pci_controller.io_map_base);
-+ /* Give some time to the PCI controller to configure itself with the new
-+ * values. Not waiting at this point causes crashes of the machine. */
-+ mdelay(10);
-+ register_pci_controller(&pc_host->pci_controller);
-+ return;
-+}
-+
-+/* Early PCI fixup for a device on the PCI-core bridge. */
-+static void bcma_core_pci_fixup_pcibridge(struct pci_dev *dev)
-+{
-+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) {
-+ /* This is not a device on the PCI-core bridge. */
-+ return;
-+ }
-+ if (PCI_SLOT(dev->devfn) != 0)
-+ return;
-+
-+ pr_info("PCI: Fixing up bridge %s\n", pci_name(dev));
-+
-+ /* Enable PCI bridge bus mastering and memory space */
-+ pci_set_master(dev);
-+ if (pcibios_enable_device(dev, ~0) < 0) {
-+ pr_err("PCI: BCMA bridge enable failed\n");
-+ return;
-+ }
-+
-+ /* Enable PCI bridge BAR1 prefetch and burst */
-+ pci_write_config_dword(dev, BCMA_PCI_BAR1_CONTROL, 3);
-+}
-+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, bcma_core_pci_fixup_pcibridge);
-+
-+/* Early PCI fixup for all PCI-cores to set the correct memory address. */
-+static void bcma_core_pci_fixup_addresses(struct pci_dev *dev)
-+{
-+ struct resource *res;
-+ int pos;
-+
-+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) {
-+ /* This is not a device on the PCI-core bridge. */
-+ return;
-+ }
-+ if (PCI_SLOT(dev->devfn) == 0)
-+ return;
-+
-+ pr_info("PCI: Fixing up addresses %s\n", pci_name(dev));
-+
-+ for (pos = 0; pos < 6; pos++) {
-+ res = &dev->resource[pos];
-+ if (res->flags & (IORESOURCE_IO | IORESOURCE_MEM))
-+ pci_assign_resource(dev, pos);
-+ }
-+}
-+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, bcma_core_pci_fixup_addresses);
-+
-+/* This function is called when doing a pci_enable_device().
-+ * We must first check if the device is a device on the PCI-core bridge. */
-+int bcma_core_pci_plat_dev_init(struct pci_dev *dev)
-+{
-+ struct bcma_drv_pci_host *pc_host;
-+
-+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) {
-+ /* This is not a device on the PCI-core bridge. */
-+ return -ENODEV;
-+ }
-+ pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host,
-+ pci_ops);
-+
-+ pr_info("PCI: Fixing up device %s\n", pci_name(dev));
-+
-+ /* Fix up interrupt lines */
-+ dev->irq = bcma_core_mips_irq(pc_host->pdev->core) + 2;
-+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(bcma_core_pci_plat_dev_init);
-+
-+/* PCI device IRQ mapping. */
-+int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev)
-+{
-+ struct bcma_drv_pci_host *pc_host;
-+
-+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) {
-+ /* This is not a device on the PCI-core bridge. */
-+ return -ENODEV;
-+ }
-+
-+ pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host,
-+ pci_ops);
-+ return bcma_core_mips_irq(pc_host->pdev->core) + 2;
- }
-+EXPORT_SYMBOL(bcma_core_pci_pcibios_map_irq);
---- a/include/linux/bcma/bcma_driver_pci.h
-+++ b/include/linux/bcma/bcma_driver_pci.h
-@@ -160,9 +160,40 @@ struct pci_dev;
- /* PCIcore specific boardflags */
- #define BCMA_CORE_PCI_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */
-
-+/* PCIE Config space accessing MACROS */
-+#define BCMA_CORE_PCI_CFG_BUS_SHIFT 24 /* Bus shift */
-+#define BCMA_CORE_PCI_CFG_SLOT_SHIFT 19 /* Slot/Device shift */
-+#define BCMA_CORE_PCI_CFG_FUN_SHIFT 16 /* Function shift */
-+#define BCMA_CORE_PCI_CFG_OFF_SHIFT 0 /* Register shift */
-+
-+#define BCMA_CORE_PCI_CFG_BUS_MASK 0xff /* Bus mask */
-+#define BCMA_CORE_PCI_CFG_SLOT_MASK 0x1f /* Slot/Device mask */
-+#define BCMA_CORE_PCI_CFG_FUN_MASK 7 /* Function mask */
-+#define BCMA_CORE_PCI_CFG_OFF_MASK 0xfff /* Register mask */
-+
-+/* PCIE Root Capability Register bits (Host mode only) */
-+#define BCMA_CORE_PCI_RC_CRS_VISIBILITY 0x0001
-+
-+struct bcma_drv_pci;
-+
-+struct bcma_drv_pci_host {
-+ struct bcma_drv_pci *pdev;
-+
-+ u32 host_cfg_addr;
-+ spinlock_t cfgspace_lock;
-+
-+ struct pci_controller pci_controller;
-+ struct pci_ops pci_ops;
-+ struct resource mem_resource;
-+ struct resource io_resource;
-+};
-+
- struct bcma_drv_pci {
- struct bcma_device *core;
- u8 setup_done:1;
-+ u8 hostmode:1;
-+
-+ struct bcma_drv_pci_host *host_controller;
- };
-
- /* Register access */
-@@ -173,4 +204,7 @@ extern void __devinit bcma_core_pci_init
- extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc,
- struct bcma_device *core, bool enable);
-
-+extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);
-+extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev);
-+
- #endif /* LINUX_BCMA_DRIVER_PCI_H_ */
---- a/include/linux/bcma/bcma_regs.h
-+++ b/include/linux/bcma/bcma_regs.h
-@@ -56,4 +56,31 @@
- #define BCMA_PCI_GPIO_XTAL 0x40 /* PCI config space GPIO 14 for Xtal powerup */
- #define BCMA_PCI_GPIO_PLL 0x80 /* PCI config space GPIO 15 for PLL powerdown */
-
-+/* SiliconBackplane Address Map.
-+ * All regions may not exist on all chips.
-+ */
-+#define BCMA_SOC_SDRAM_BASE 0x00000000U /* Physical SDRAM */
-+#define BCMA_SOC_PCI_MEM 0x08000000U /* Host Mode sb2pcitranslation0 (64 MB) */
-+#define BCMA_SOC_PCI_MEM_SZ (64 * 1024 * 1024)
-+#define BCMA_SOC_PCI_CFG 0x0c000000U /* Host Mode sb2pcitranslation1 (64 MB) */
-+#define BCMA_SOC_SDRAM_SWAPPED 0x10000000U /* Byteswapped Physical SDRAM */
-+#define BCMA_SOC_SDRAM_R2 0x80000000U /* Region 2 for sdram (512 MB) */
-+
-+
-+#define BCMA_SOC_PCI_DMA 0x40000000U /* Client Mode sb2pcitranslation2 (1 GB) */
-+#define BCMA_SOC_PCI_DMA2 0x80000000U /* Client Mode sb2pcitranslation2 (1 GB) */
-+#define BCMA_SOC_PCI_DMA_SZ 0x40000000U /* Client Mode sb2pcitranslation2 size in bytes */
-+#define BCMA_SOC_PCIE_DMA_L32 0x00000000U /* PCIE Client Mode sb2pcitranslation2
-+ * (2 ZettaBytes), low 32 bits
-+ */
-+#define BCMA_SOC_PCIE_DMA_H32 0x80000000U /* PCIE Client Mode sb2pcitranslation2
-+ * (2 ZettaBytes), high 32 bits
-+ */
-+
-+#define BCMA_SOC_PCI1_MEM 0x40000000U /* Host Mode sb2pcitranslation0 (64 MB) */
-+#define BCMA_SOC_PCI1_CFG 0x44000000U /* Host Mode sb2pcitranslation1 (64 MB) */
-+#define BCMA_SOC_PCIE1_DMA_H32 0xc0000000U /* PCIE Client Mode sb2pcitranslation2
-+ * (2 ZettaBytes), high 32 bits
-+ */
-+
- #endif /* LINUX_BCMA_REGS_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 21:24:35 +0000