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-rw-r--r--target/linux/brcm47xx/patches-3.0/0008-bcma-add-pci-e-host-mode.patch140
1 files changed, 140 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0008-bcma-add-pci-e-host-mode.patch b/target/linux/brcm47xx/patches-3.0/0008-bcma-add-pci-e-host-mode.patch
new file mode 100644
index 0000000000..48c18bb0b2
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.0/0008-bcma-add-pci-e-host-mode.patch
@@ -0,0 +1,140 @@
+From f93062e72447b4a4a51afbe33ea086ce8c922587 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 19 Jun 2011 17:52:09 +0200
+Subject: [PATCH 08/14] bcma: add pci(e) host mode
+
+This adds some stub for a pci(e) host controller. This controller is
+found on some embedded devices to attach other chips.
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/bcma/Kconfig | 6 ++++
+ drivers/bcma/Makefile | 1 +
+ drivers/bcma/bcma_private.h | 6 ++++
+ drivers/bcma/driver_pci.c | 14 ++++++++++-
+ drivers/bcma/driver_pci_host.c | 43 ++++++++++++++++++++++++++++++++++
+ include/linux/bcma/bcma_driver_pci.h | 1 +
+ 6 files changed, 70 insertions(+), 1 deletions(-)
+ create mode 100644 drivers/bcma/driver_pci_host.c
+
+--- a/drivers/bcma/Kconfig
++++ b/drivers/bcma/Kconfig
+@@ -32,6 +32,12 @@ config BCMA_HOST_SOC
+ depends on BCMA_DRIVER_MIPS
+ default n
+
++config BCMA_DRIVER_PCI_HOSTMODE
++ bool "Hostmode support for BCMA PCI core"
++ depends on BCMA_DRIVER_MIPS
++ help
++ PCIcore hostmode operation (external PCI bus).
++
+ config BCMA_DRIVER_MIPS
+ bool "BCMA Broadcom MIPS core driver"
+ depends on BCMA && MIPS
+--- a/drivers/bcma/Makefile
++++ b/drivers/bcma/Makefile
+@@ -1,6 +1,7 @@
+ bcma-y += main.o scan.o core.o sprom.o
+ bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
+ bcma-y += driver_pci.o
++bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o
+ bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o
+ bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o
+ bcma-$(CONFIG_BCMA_HOST_SOC) += host_soc.o
+--- a/drivers/bcma/bcma_private.h
++++ b/drivers/bcma/bcma_private.h
+@@ -38,6 +38,12 @@ extern int bcma_chipco_serial_init(struc
+ struct bcma_drv_mips_serial_port *ports);
+ #endif /* CONFIG_BCMA_DRIVER_MIPS */
+
++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
++/* driver_pci_host.c */
++int bcma_core_pci_in_hostmode(struct bcma_drv_pci *pc);
++void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
++#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
++
+ #ifdef CONFIG_BCMA_HOST_PCI
+ /* host_pci.c */
+ extern int __init bcma_host_pci_init(void);
+--- a/drivers/bcma/driver_pci.c
++++ b/drivers/bcma/driver_pci.c
+@@ -159,9 +159,21 @@ static void bcma_pcicore_serdes_workarou
+
+ void bcma_core_pci_init(struct bcma_drv_pci *pc)
+ {
++ struct bcma_device *core = pc->core;
++
+ if (pc->setup_done)
+ return;
+- bcma_pcicore_serdes_workaround(pc);
++
++ if (!bcma_core_is_enabled(core))
++ bcma_core_enable(core, 0);
++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
++ pc->hostmode = bcma_core_pci_in_hostmode(pc);
++ if (pc->hostmode)
++ bcma_core_pci_hostmode_init(pc);
++#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
++ if (!pc->hostmode)
++ bcma_pcicore_serdes_workaround(pc);
++
+ pc->setup_done = true;
+ }
+
+--- /dev/null
++++ b/drivers/bcma/driver_pci_host.c
+@@ -0,0 +1,43 @@
++/*
++ * Broadcom specific AMBA
++ * PCI Host mode
++ *
++ * Copyright 2005, Broadcom Corporation
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++#include "bcma_private.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)))
++
++
++void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
++{
++ /* TODO: implement PCI host mode */
++}
++
++int bcma_core_pci_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 0;
++
++/* TODO: add when sprom is available
++ * if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
++ * return 0;
++ */
++
++ return !mips_busprobe32(tmp, (bus->mmio + (pc->core->core_index *
++ BCMA_CORE_SIZE)));
++}
+--- a/include/linux/bcma/bcma_driver_pci.h
++++ b/include/linux/bcma/bcma_driver_pci.h
+@@ -78,6 +78,7 @@ struct pci_dev;
+ struct bcma_drv_pci {
+ struct bcma_device *core;
+ u8 setup_done:1;
++ u8 hostmode:1;
+ };
+
+ /* Register access */