diff options
author | John Rigby <jrigby@freescale.com> | 2008-10-07 19:00:18 (GMT) |
---|---|---|
committer | Kumar Gala <galak@kernel.crashing.org> | 2008-10-13 16:09:58 (GMT) |
commit | 5b70a097052fff3831d8b94541452e7c29426777 (patch) | |
tree | a319e6f81c2ac7d50af76ce863118f515896c2ef /arch/powerpc | |
parent | 4a015c37409ead893b659c2f89f1aa1fdf512115 (diff) | |
download | linux-fsl-qoriq-5b70a097052fff3831d8b94541452e7c29426777.tar.xz |
powerpc: 83xx: pci: Remove need for get_immrbase from mpc83xx_add_bridge.
Modify mpc83xx_add_bridge to get config space register base address from
the device tree instead of immr + hardcoded offset.
83xx pci nodes have this change:
register properties now contain two address length tuples:
First is the pci bridge register base, this has always been there.
Second is the config base, this is new.
This is documented in dts-bindings/fsl/83xx-512x-pci.txt
The changes accomplish these things:
mpc83xx_add_bridge no longer needs to call get_immrbase
it uses hard coded addresses if the second register value is missing
Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/boot/dts/mpc8313erdb.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8315erdb.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc832x_mds.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc832x_rdb.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8349emitx.dts | 6 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8349emitxgp.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc834x_mds.dts | 6 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc836x_mds.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc836x_rdk.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8377_mds.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8377_rdb.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8378_mds.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8378_rdb.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8379_mds.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/mpc8379_rdb.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/boot/dts/sbc8349.dts | 3 | ||||
-rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 54 |
17 files changed, 71 insertions, 37 deletions
diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts b/arch/powerpc/boot/dts/mpc8313erdb.dts index 5390855..747f276 100644 --- a/arch/powerpc/boot/dts/mpc8313erdb.dts +++ b/arch/powerpc/boot/dts/mpc8313erdb.dts @@ -363,7 +363,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts index 94c9b41..7449e54 100644 --- a/arch/powerpc/boot/dts/mpc8315erdb.dts +++ b/arch/powerpc/boot/dts/mpc8315erdb.dts @@ -318,7 +318,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts index 015808a..e4cc176 100644 --- a/arch/powerpc/boot/dts/mpc832x_mds.dts +++ b/arch/powerpc/boot/dts/mpc832x_mds.dts @@ -423,7 +423,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts index b5b0ec2..226ff06 100644 --- a/arch/powerpc/boot/dts/mpc832x_rdb.dts +++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts @@ -331,7 +331,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts index 1327a61..5cedf37 100644 --- a/arch/powerpc/boot/dts/mpc8349emitx.dts +++ b/arch/powerpc/boot/dts/mpc8349emitx.dts @@ -254,7 +254,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; @@ -280,7 +281,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008600 0x100>; + reg = <0xe0008600 0x100 /* internal registers */ + 0xe0008380 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8349emitxgp.dts b/arch/powerpc/boot/dts/mpc8349emitxgp.dts index f70d3a0..81ae1d3 100644 --- a/arch/powerpc/boot/dts/mpc8349emitxgp.dts +++ b/arch/powerpc/boot/dts/mpc8349emitxgp.dts @@ -228,7 +228,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008600 0x100>; + reg = <0xe0008600 0x100 /* internal registers */ + 0xe0008380 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc834x_mds.dts b/arch/powerpc/boot/dts/mpc834x_mds.dts index e29739e..04bfde3 100644 --- a/arch/powerpc/boot/dts/mpc834x_mds.dts +++ b/arch/powerpc/boot/dts/mpc834x_mds.dts @@ -315,7 +315,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; @@ -376,7 +377,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008600 0x100>; + reg = <0xe0008600 0x100 /* internal registers */ + 0xe0008380 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts index 49aec71..66a12d2 100644 --- a/arch/powerpc/boot/dts/mpc836x_mds.dts +++ b/arch/powerpc/boot/dts/mpc836x_mds.dts @@ -426,7 +426,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc836x_rdk.dts b/arch/powerpc/boot/dts/mpc836x_rdk.dts index 69c9bd2..f747747 100644 --- a/arch/powerpc/boot/dts/mpc836x_rdk.dts +++ b/arch/powerpc/boot/dts/mpc836x_rdk.dts @@ -409,7 +409,8 @@ #interrupt-cells = <1>; device_type = "pci"; compatible = "fsl,mpc8360-pci", "fsl,mpc8349-pci"; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ ranges = <0x02000000 0 0x90000000 0x90000000 0 0x10000000 0x42000000 0 0x80000000 0x80000000 0 0x10000000 0x01000000 0 0xe0300000 0xe0300000 0 0x00100000>; diff --git a/arch/powerpc/boot/dts/mpc8377_mds.dts b/arch/powerpc/boot/dts/mpc8377_mds.dts index 78f0f11..87314c7 100644 --- a/arch/powerpc/boot/dts/mpc8377_mds.dts +++ b/arch/powerpc/boot/dts/mpc8377_mds.dts @@ -378,7 +378,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8377_rdb.dts b/arch/powerpc/boot/dts/mpc8377_rdb.dts index d46327e..53191ba 100644 --- a/arch/powerpc/boot/dts/mpc8377_rdb.dts +++ b/arch/powerpc/boot/dts/mpc8377_rdb.dts @@ -319,7 +319,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8378_mds.dts b/arch/powerpc/boot/dts/mpc8378_mds.dts index c44f30f..0294191 100644 --- a/arch/powerpc/boot/dts/mpc8378_mds.dts +++ b/arch/powerpc/boot/dts/mpc8378_mds.dts @@ -364,7 +364,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8378_rdb.dts b/arch/powerpc/boot/dts/mpc8378_rdb.dts index b3e3bd7d..4a09153 100644 --- a/arch/powerpc/boot/dts/mpc8378_rdb.dts +++ b/arch/powerpc/boot/dts/mpc8378_rdb.dts @@ -305,7 +305,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8379_mds.dts b/arch/powerpc/boot/dts/mpc8379_mds.dts index 653ed47..13a2311 100644 --- a/arch/powerpc/boot/dts/mpc8379_mds.dts +++ b/arch/powerpc/boot/dts/mpc8379_mds.dts @@ -392,7 +392,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/mpc8379_rdb.dts b/arch/powerpc/boot/dts/mpc8379_rdb.dts index 123c8df..bbd884a 100644 --- a/arch/powerpc/boot/dts/mpc8379_rdb.dts +++ b/arch/powerpc/boot/dts/mpc8379_rdb.dts @@ -333,7 +333,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/boot/dts/sbc8349.dts b/arch/powerpc/boot/dts/sbc8349.dts index c7f411f..0f941f3 100644 --- a/arch/powerpc/boot/dts/sbc8349.dts +++ b/arch/powerpc/boot/dts/sbc8349.dts @@ -272,7 +272,8 @@ #interrupt-cells = <1>; #size-cells = <2>; #address-cells = <3>; - reg = <0xe0008500 0x100>; + reg = <0xe0008500 0x100 /* internal registers */ + 0xe0008300 0x8>; /* config space access registers */ compatible = "fsl,mpc8349-pci"; device_type = "pci"; }; diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index 61e6d77..a3f4aba 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -1,7 +1,7 @@ /* - * MPC85xx/86xx PCI/PCIE support routing. + * MPC83xx/85xx/86xx PCI/PCIE support routing. * - * Copyright 2007 Freescale Semiconductor, Inc + * Copyright 2007,2008 Freescale Semiconductor, Inc * * Initial author: Xianghua Xiao <x.xiao@freescale.com> * Recode: ZHANG WEI <wei.zhang@freescale.com> @@ -256,15 +256,42 @@ int __init mpc83xx_add_bridge(struct device_node *dev) { int len; struct pci_controller *hose; - struct resource rsrc; + struct resource rsrc_reg; + struct resource rsrc_cfg; const int *bus_range; - int primary = 1, has_address = 0; - phys_addr_t immr = get_immrbase(); + int primary; pr_debug("Adding PCI host bridge %s\n", dev->full_name); /* Fetch host bridge registers address */ - has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); + if (of_address_to_resource(dev, 0, &rsrc_reg)) { + printk(KERN_WARNING "Can't get pci register base!\n"); + return -ENOMEM; + } + + memset(&rsrc_cfg, 0, sizeof(rsrc_cfg)); + + if (of_address_to_resource(dev, 1, &rsrc_cfg)) { + printk(KERN_WARNING + "No pci config register base in dev tree, " + "using default\n"); + /* + * MPC83xx supports up to two host controllers + * one at 0x8500 has config space registers at 0x8300 + * one at 0x8600 has config space registers at 0x8380 + */ + if ((rsrc_reg.start & 0xfffff) == 0x8500) + rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8300; + else if ((rsrc_reg.start & 0xfffff) == 0x8600) + rsrc_cfg.start = (rsrc_reg.start & 0xfff00000) + 0x8380; + } + /* + * Controller at offset 0x8500 is primary + */ + if ((rsrc_reg.start & 0xfffff) == 0x8500) + primary = 1; + else + primary = 0; /* Get bus range if any */ bus_range = of_get_property(dev, "bus-range", &len); @@ -281,22 +308,11 @@ int __init mpc83xx_add_bridge(struct device_node *dev) hose->first_busno = bus_range ? bus_range[0] : 0; hose->last_busno = bus_range ? bus_range[1] : 0xff; - /* MPC83xx supports up to two host controllers one at 0x8500 from immrbar - * the other at 0x8600, we consider the 0x8500 the primary controller - */ - /* PCI 1 */ - if ((rsrc.start & 0xfffff) == 0x8500) { - setup_indirect_pci(hose, immr + 0x8300, immr + 0x8304, 0); - } - /* PCI 2 */ - if ((rsrc.start & 0xfffff) == 0x8600) { - setup_indirect_pci(hose, immr + 0x8380, immr + 0x8384, 0); - primary = 0; - } + setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 4, 0); printk(KERN_INFO "Found MPC83xx PCI host bridge at 0x%016llx. " "Firmware bus number: %d->%d\n", - (unsigned long long)rsrc.start, hose->first_busno, + (unsigned long long)rsrc_reg.start, hose->first_busno, hose->last_busno); pr_debug(" ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n", |