From 5cef379b34ffcd96567066ddc1012bd40e6e7675 Mon Sep 17 00:00:00 2001 From: Becky Bruce Date: Thu, 14 May 2009 17:42:29 -0500 Subject: powerpc: Add 86xx support for SWIOTLB This is the final bit of code to allow enabling swiotlb on mpc86xx. The platform-specific code is very small and consists of enabling SWIOTLB in the config file, registering the swiotlb_setup_bus_notifier initcall, and setting pci_dma_ops to point to swiotlb_pci_dma_ops if we have more memory than can be mapped by the inbound PCI windows. Signed-off-by: Becky Bruce Signed-off-by: Kumar Gala --- arch/powerpc/platforms/86xx/Kconfig | 1 + arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig index fdaf4ddaa95..9c7b64a3402 100644 --- a/arch/powerpc/platforms/86xx/Kconfig +++ b/arch/powerpc/platforms/86xx/Kconfig @@ -15,6 +15,7 @@ config MPC8641_HPCN select DEFAULT_UIMAGE select FSL_ULI1575 select HAS_RAPIDIO + select SWIOTLB help This option enables support for the MPC8641 HPCN board. diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index 7e9e83c04a8..66327024a6a 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -27,6 +28,7 @@ #include #include #include +#include #include @@ -70,7 +72,9 @@ mpc86xx_hpcn_setup_arch(void) { #ifdef CONFIG_PCI struct device_node *np; + struct pci_controller *hose; #endif + dma_addr_t max = 0xffffffff; if (ppc_md.progress) ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0); @@ -83,6 +87,9 @@ mpc86xx_hpcn_setup_arch(void) fsl_add_bridge(np, 1); else fsl_add_bridge(np, 0); + hose = pci_find_hose_for_OF_device(np); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); } ppc_md.pci_exclude_device = mpc86xx_exclude_device; @@ -94,6 +101,13 @@ mpc86xx_hpcn_setup_arch(void) #ifdef CONFIG_SMP mpc86xx_smp_init(); #endif + +#ifdef CONFIG_SWIOTLB + if (lmb_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_pci_dma_ops); + } +#endif } @@ -158,6 +172,7 @@ static int __init declare_of_platform_devices(void) return 0; } machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices); +machine_arch_initcall(mpc86xx_hpcn, swiotlb_setup_bus_notifier); define_machine(mpc86xx_hpcn) { .name = "MPC86xx HPCN", -- cgit v1.2.3 From 152d0182822e871a3fe1f6d97949d83fad950e26 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 15 May 2009 00:37:35 -0500 Subject: powerpc/85xx: Add SWIOTLB support to FSL boards Add the platform-specific code for enabling SWIOTLB if needed on P2020DS, MPC85xx DS, and MPC85xx MDS boards as they are capable of having >4G of memory. We determine if we need to enable swiotlb based on how much memory is in the board and if it exceeds 4G or what we can map via PCI inbound windows. Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/Kconfig | 3 +++ arch/powerpc/platforms/85xx/mpc8536_ds.c | 17 +++++++++++++++++ arch/powerpc/platforms/85xx/mpc85xx_ds.c | 19 +++++++++++++++++++ arch/powerpc/platforms/85xx/mpc85xx_mds.c | 20 ++++++++++++++++++++ 4 files changed, 59 insertions(+) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 43d385cedcd..0ee5b12c7d9 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -35,12 +35,14 @@ config MPC85xx_MDS select DEFAULT_UIMAGE select PHYLIB select HAS_RAPIDIO + select SWIOTLB help This option enables support for the MPC85xx MDS board config MPC8536_DS bool "Freescale MPC8536 DS" select DEFAULT_UIMAGE + select SWIOTLB help This option enables support for the MPC8536 DS board @@ -49,6 +51,7 @@ config MPC85xx_DS select PPC_I8259 select DEFAULT_UIMAGE select FSL_ULI1575 + select SWIOTLB help This option enables support for the MPC85xx DS (MPC8544 DS) board diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c index 63efca20d7b..055ff417bae 100644 --- a/arch/powerpc/platforms/85xx/mpc8536_ds.c +++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -26,6 +27,7 @@ #include #include #include +#include #include #include @@ -65,7 +67,9 @@ static void __init mpc8536_ds_setup_arch(void) { #ifdef CONFIG_PCI struct device_node *np; + struct pci_controller *hose; #endif + dma_addr_t max = 0xffffffff; if (ppc_md.progress) ppc_md.progress("mpc8536_ds_setup_arch()", 0); @@ -80,11 +84,22 @@ static void __init mpc8536_ds_setup_arch(void) fsl_add_bridge(np, 1); else fsl_add_bridge(np, 0); + + hose = pci_find_hose_for_OF_device(np); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); } } #endif +#ifdef CONFIG_SWIOTLB + if (lmb_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_pci_dma_ops); + } +#endif + printk("MPC8536 DS board from Freescale Semiconductor\n"); } @@ -102,6 +117,8 @@ static int __init mpc8536_ds_publish_devices(void) } machine_device_initcall(mpc8536_ds, mpc8536_ds_publish_devices); +machine_arch_initcall(mpc8536_ds, swiotlb_setup_bus_notifier); + /* * Called very early, device-tree isn't unflattened */ diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index 53d5851a6c9..849c0ac0025 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -30,6 +31,7 @@ #include #include #include +#include #include #include @@ -155,7 +157,9 @@ static void __init mpc85xx_ds_setup_arch(void) { #ifdef CONFIG_PCI struct device_node *np; + struct pci_controller *hose; #endif + dma_addr_t max = 0xffffffff; if (ppc_md.progress) ppc_md.progress("mpc85xx_ds_setup_arch()", 0); @@ -171,6 +175,10 @@ static void __init mpc85xx_ds_setup_arch(void) fsl_add_bridge(np, 1); else fsl_add_bridge(np, 0); + + hose = pci_find_hose_for_OF_device(np); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); } } @@ -181,6 +189,13 @@ static void __init mpc85xx_ds_setup_arch(void) mpc85xx_smp_init(); #endif +#ifdef CONFIG_SWIOTLB + if (lmb_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_pci_dma_ops); + } +#endif + printk("MPC85xx DS board from Freescale Semiconductor\n"); } @@ -217,6 +232,10 @@ machine_device_initcall(mpc8544_ds, mpc85xxds_publish_devices); machine_device_initcall(mpc8572_ds, mpc85xxds_publish_devices); machine_device_initcall(p2020_ds, mpc85xxds_publish_devices); +machine_arch_initcall(mpc8544_ds, swiotlb_setup_bus_notifier); +machine_arch_initcall(mpc8572_ds, swiotlb_setup_bus_notifier); +machine_arch_initcall(p2020_ds, swiotlb_setup_bus_notifier); + /* * Called very early, device-tree isn't unflattened */ diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index b2c0a431997..77f90b35635 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -49,6 +50,7 @@ #include #include #include +#include #undef DEBUG #ifdef DEBUG @@ -155,6 +157,10 @@ static void __init mpc85xx_mds_setup_arch(void) { struct device_node *np; static u8 __iomem *bcsr_regs = NULL; +#ifdef CONFIG_PCI + struct pci_controller *hose; +#endif + dma_addr_t max = 0xffffffff; if (ppc_md.progress) ppc_md.progress("mpc85xx_mds_setup_arch()", 0); @@ -179,6 +185,10 @@ static void __init mpc85xx_mds_setup_arch(void) fsl_add_bridge(np, 1); else fsl_add_bridge(np, 0); + + hose = pci_find_hose_for_OF_device(np); + max = min(max, hose->dma_window_base_cur + + hose->dma_window_size); } } #endif @@ -227,6 +237,13 @@ static void __init mpc85xx_mds_setup_arch(void) iounmap(bcsr_regs); } #endif /* CONFIG_QUICC_ENGINE */ + +#ifdef CONFIG_SWIOTLB + if (lmb_end_of_DRAM() > max) { + ppc_swiotlb_enable = 1; + set_pci_dma_ops(&swiotlb_pci_dma_ops); + } +#endif } @@ -281,6 +298,9 @@ static int __init mpc85xx_publish_devices(void) machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices); machine_device_initcall(mpc8569_mds, mpc85xx_publish_devices); +machine_arch_initcall(mpc8568_mds, swiotlb_setup_bus_notifier); +machine_arch_initcall(mpc8569_mds, swiotlb_setup_bus_notifier); + static void __init mpc85xx_mds_pic_init(void) { struct mpic *mpic; -- cgit v1.2.3 From b7d66c88c968379ebe683a28c4005895497ebbad Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Tue, 9 Jun 2009 13:43:32 +0200 Subject: powerpc/mpc83xx: Fix usb mux setup for mpc834x usb0 and usb1 mux settings in the sicrl register were swapped (twice!) in mpc834x_usb_cfg(), leading to various strange issues with fsl-ehci and full speed devices. The USB port config on mpc834x is done using 2 muxes: Port 0 is always used for MPH port 0, and port 1 can either be used for MPH port 1 or DR (unless DR uses UTMI phy or OTG, then it uses both ports) - See 8349 RM figure 1-4.. mpc8349_usb_cfg() had this inverted for the DR, and it also had the bit positions of the usb0 / usb1 mux settings swapped. It would basically work if you specified port1 instead of port0 for the MPH controller (and happened to use ULPI phys), which is what all the 834x dts have done, even though that configuration is physically invalid. Instead fix mpc8349_usb_cfg() and adjust the dts files to match reality. Signed-off-by: Peter Korsgaard Signed-off-by: Kumar Gala --- arch/powerpc/platforms/83xx/mpc83xx.h | 4 ++-- arch/powerpc/platforms/83xx/usb.c | 10 +++++----- 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h index 83cfe51526e..d1dc5b0b4fb 100644 --- a/arch/powerpc/platforms/83xx/mpc83xx.h +++ b/arch/powerpc/platforms/83xx/mpc83xx.h @@ -22,8 +22,8 @@ /* system i/o configuration register low */ #define MPC83XX_SICRL_OFFS 0x114 #define MPC834X_SICRL_USB_MASK 0x60000000 -#define MPC834X_SICRL_USB0 0x40000000 -#define MPC834X_SICRL_USB1 0x20000000 +#define MPC834X_SICRL_USB0 0x20000000 +#define MPC834X_SICRL_USB1 0x40000000 #define MPC831X_SICRL_USB_MASK 0x00000c00 #define MPC831X_SICRL_USB_ULPI 0x00000800 #define MPC8315_SICRL_USB_MASK 0x000000fc diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c index 11e1fac17c7..3ba4bb7d41b 100644 --- a/arch/powerpc/platforms/83xx/usb.c +++ b/arch/powerpc/platforms/83xx/usb.c @@ -47,25 +47,25 @@ int mpc834x_usb_cfg(void) sccr |= MPC83XX_SCCR_USB_DRCM_11; /* 1:3 */ prop = of_get_property(np, "phy_type", NULL); + port1_is_dr = 1; if (prop && (!strcmp(prop, "utmi") || !strcmp(prop, "utmi_wide"))) { sicrl |= MPC834X_SICRL_USB0 | MPC834X_SICRL_USB1; sicrh |= MPC834X_SICRH_USB_UTMI; - port1_is_dr = 1; + port0_is_dr = 1; } else if (prop && !strcmp(prop, "serial")) { dr_mode = of_get_property(np, "dr_mode", NULL); if (dr_mode && !strcmp(dr_mode, "otg")) { sicrl |= MPC834X_SICRL_USB0 | MPC834X_SICRL_USB1; - port1_is_dr = 1; + port0_is_dr = 1; } else { - sicrl |= MPC834X_SICRL_USB0; + sicrl |= MPC834X_SICRL_USB1; } } else if (prop && !strcmp(prop, "ulpi")) { - sicrl |= MPC834X_SICRL_USB0; + sicrl |= MPC834X_SICRL_USB1; } else { printk(KERN_WARNING "834x USB PHY type not supported\n"); } - port0_is_dr = 1; of_node_put(np); } np = of_find_compatible_node(NULL, NULL, "fsl-usb2-mph"); -- cgit v1.2.3 From 8159df72d43e237d5bfcff052a8337245b6ac53e Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Mon, 15 Jun 2009 09:38:18 +0200 Subject: 83xx: add support for the kmeter1 board. The following series implements basic board support for the kmeter1 board from keymile, based on a MPC8360. This series provides the following functionality: - The board can boot with a serial console on UART1 - Ethernet: UCC1 in RGMII mode UCC2 in RGMII mode UCC4 in RMII mode UCC5 in RMII mode UCC6 in RMII mode UCC7 in RMII mode UCC8 in RMII mode following patch is necessary for working UCC in RMII mode: http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070804.html - Flash accessed via MTD layer On this hardware there is an Intel P30 flash, following patch series is necessary for working with this hardware: http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070624.html - I2C using I2C Bus 1 from the MPC8360 cpu Signed-off-by: Heiko Schocher Signed-off-by: Kumar Gala --- arch/powerpc/platforms/83xx/Kconfig | 7 ++ arch/powerpc/platforms/83xx/Makefile | 1 + arch/powerpc/platforms/83xx/kmeter1.c | 191 ++++++++++++++++++++++++++++++++++ 3 files changed, 199 insertions(+) create mode 100644 arch/powerpc/platforms/83xx/kmeter1.c (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig index 437d29a59d7..083ebee9a16 100644 --- a/arch/powerpc/platforms/83xx/Kconfig +++ b/arch/powerpc/platforms/83xx/Kconfig @@ -96,6 +96,13 @@ config ASP834x This enables support for the Analogue & Micro ASP 83xx board. +config KMETER1 + bool "Keymile KMETER1" + select DEFAULT_UIMAGE + select QUICC_ENGINE + help + This enables support for the Keymile KMETER1 board. + endif diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile index 051777c542c..e139c36572e 100644 --- a/arch/powerpc/platforms/83xx/Makefile +++ b/arch/powerpc/platforms/83xx/Makefile @@ -15,3 +15,4 @@ obj-$(CONFIG_MPC837x_MDS) += mpc837x_mds.o obj-$(CONFIG_SBC834x) += sbc834x.o obj-$(CONFIG_MPC837x_RDB) += mpc837x_rdb.o obj-$(CONFIG_ASP834x) += asp834x.o +obj-$(CONFIG_KMETER1) += kmeter1.o diff --git a/arch/powerpc/platforms/83xx/kmeter1.c b/arch/powerpc/platforms/83xx/kmeter1.c new file mode 100644 index 00000000000..903acfd851a --- /dev/null +++ b/arch/powerpc/platforms/83xx/kmeter1.c @@ -0,0 +1,191 @@ +/* + * Copyright 2008 DENX Software Engineering GmbH + * Author: Heiko Schocher + * + * Description: + * Keymile KMETER1 board specific routines. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mpc83xx.h" + +#define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */ +/* ************************************************************************ + * + * Setup the architecture + * + */ +static void __init kmeter1_setup_arch(void) +{ + struct device_node *np; + + if (ppc_md.progress) + ppc_md.progress("kmeter1_setup_arch()", 0); + +#ifdef CONFIG_PCI + for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") + mpc83xx_add_bridge(np); +#endif + +#ifdef CONFIG_QUICC_ENGINE + qe_reset(); + + np = of_find_node_by_name(NULL, "par_io"); + if (np != NULL) { + par_io_init(np); + of_node_put(np); + + for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) + par_io_of_config(np); + } + + np = of_find_compatible_node(NULL, "network", "ucc_geth"); + if (np != NULL) { + uint svid; + + /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */ + svid = mfspr(SPRN_SVR); + if (SVR_REV(svid) == 0x0021) { + struct device_node *np_par; + struct resource res; + void __iomem *base; + int ret; + + np_par = of_find_node_by_name(NULL, "par_io"); + if (np_par == NULL) { + printk(KERN_WARNING "%s couldn;t find par_io node\n", + __func__); + return; + } + /* Map Parallel I/O ports registers */ + ret = of_address_to_resource(np_par, 0, &res); + if (ret) { + printk(KERN_WARNING "%s couldn;t map par_io registers\n", + __func__); + return; + } + base = ioremap(res.start, res.end - res.start + 1); + + /* + * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2) + * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1) + */ + setbits32((base + 0xa8), 0x0c003000); + + /* + * IMMR + 0x14AC[20:27] = 10101010 + * (data delay for both UCC's) + */ + clrsetbits_be32((base + 0xac), 0xff0, 0xaa0); + iounmap(base); + of_node_put(np_par); + } + of_node_put(np); + } +#endif /* CONFIG_QUICC_ENGINE */ +} + +static struct of_device_id kmeter_ids[] = { + { .type = "soc", }, + { .compatible = "soc", }, + { .compatible = "simple-bus", }, + { .type = "qe", }, + { .compatible = "fsl,qe", }, + {}, +}; + +static int __init kmeter_declare_of_platform_devices(void) +{ + /* Publish the QE devices */ + of_platform_bus_probe(NULL, kmeter_ids, NULL); + + return 0; +} +machine_device_initcall(kmeter1, kmeter_declare_of_platform_devices); + +static void __init kmeter1_init_IRQ(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "fsl,pq2pro-pic"); + if (!np) { + np = of_find_node_by_type(NULL, "ipic"); + if (!np) + return; + } + + ipic_init(np, 0); + + /* Initialize the default interrupt mapping priorities, + * in case the boot rom changed something on us. + */ + ipic_set_default_priority(); + of_node_put(np); + +#ifdef CONFIG_QUICC_ENGINE + np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic"); + if (!np) { + np = of_find_node_by_type(NULL, "qeic"); + if (!np) + return; + } + qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic); + of_node_put(np); +#endif /* CONFIG_QUICC_ENGINE */ +} + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init kmeter1_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "keymile,KMETER1"); +} + +define_machine(kmeter1) { + .name = "KMETER1", + .probe = kmeter1_probe, + .setup_arch = kmeter1_setup_arch, + .init_IRQ = kmeter1_init_IRQ, + .get_irq = ipic_get_irq, + .restart = mpc83xx_restart, + .time_init = mpc83xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; -- cgit v1.2.3 From 3038acf9091ff265609af3524ed94cce797d8485 Mon Sep 17 00:00:00 2001 From: Nate Case Date: Thu, 11 Jun 2009 14:42:58 -0500 Subject: powerpc/85xx: Add platform support for X-ES MPC85xx boards Add support for X-ES single-board computers based on the Freescale MPC85xx processors. Signed-off-by: Nate Case Signed-off-by: Kumar Gala --- arch/powerpc/platforms/85xx/Kconfig | 10 ++ arch/powerpc/platforms/85xx/Makefile | 1 + arch/powerpc/platforms/85xx/xes_mpc85xx.c | 282 ++++++++++++++++++++++++++++++ 3 files changed, 293 insertions(+) create mode 100644 arch/powerpc/platforms/85xx/xes_mpc85xx.c (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 0ee5b12c7d9..a9b41668897 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -67,6 +67,16 @@ config KSI8560 help This option enables support for the Emerson KSI8560 board +config XES_MPC85xx + bool "X-ES single-board computer" + select DEFAULT_UIMAGE + help + This option enables support for the various single-board + computers from Extreme Engineering Solutions (X-ES) based on + Freescale MPC85xx processors. + Manufacturer: Extreme Engineering Solutions, Inc. + URL: + config STX_GP3 bool "Silicon Turnkey Express GP3" help diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index a857b35b982..835733f2b12 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -15,3 +15,4 @@ obj-$(CONFIG_SBC8560) += sbc8560.o obj-$(CONFIG_SBC8548) += sbc8548.o obj-$(CONFIG_SOCRATES) += socrates.o socrates_fpga_pic.o obj-$(CONFIG_KSI8560) += ksi8560.o +obj-$(CONFIG_XES_MPC85xx) += xes_mpc85xx.o \ No newline at end of file diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c new file mode 100644 index 00000000000..ee01532786e --- /dev/null +++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c @@ -0,0 +1,282 @@ +/* + * Copyright (C) 2009 Extreme Engineering Solutions, Inc. + * + * X-ES board-specific functionality + * + * Based on mpc85xx_ds code from Freescale Semiconductor, Inc. + * + * Author: Nate Case + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +/* A few bit definitions needed for fixups on some boards */ +#define MPC85xx_L2CTL_L2E 0x80000000 /* L2 enable */ +#define MPC85xx_L2CTL_L2I 0x40000000 /* L2 flash invalidate */ +#define MPC85xx_L2CTL_L2SIZ_MASK 0x30000000 /* L2 SRAM size (R/O) */ + +void __init xes_mpc85xx_pic_init(void) +{ + struct mpic *mpic; + struct resource r; + struct device_node *np; + + np = of_find_node_by_type(NULL, "open-pic"); + if (np == NULL) { + printk(KERN_ERR "Could not find open-pic node\n"); + return; + } + + if (of_address_to_resource(np, 0, &r)) { + printk(KERN_ERR "Failed to map mpic register space\n"); + of_node_put(np); + return; + } + + mpic = mpic_alloc(np, r.start, + MPIC_PRIMARY | MPIC_WANTS_RESET | + MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + 0, 256, " OpenPIC "); + BUG_ON(mpic == NULL); + of_node_put(np); + + mpic_init(mpic); +} + +static void xes_mpc85xx_configure_l2(void __iomem *l2_base) +{ + volatile uint32_t ctl, tmp; + + asm volatile("msync; isync"); + tmp = in_be32(l2_base); + + /* + * xMon may have enabled part of L2 as SRAM, so we need to set it + * up for all cache mode just to be safe. + */ + printk(KERN_INFO "xes_mpc85xx: Enabling L2 as cache\n"); + + ctl = MPC85xx_L2CTL_L2E | MPC85xx_L2CTL_L2I; + if (machine_is_compatible("MPC8540") || + machine_is_compatible("MPC8560")) + /* + * Assume L2 SRAM is used fully for cache, so set + * L2BLKSZ (bits 4:5) to match L2SIZ (bits 2:3). + */ + ctl |= (tmp & MPC85xx_L2CTL_L2SIZ_MASK) >> 2; + + asm volatile("msync; isync"); + out_be32(l2_base, ctl); + asm volatile("msync; isync"); +} + +static void xes_mpc85xx_fixups(void) +{ + struct device_node *np; + int err; + + /* + * Legacy xMon firmware on some X-ES boards does not enable L2 + * as cache. We must ensure that they get enabled here. + */ + for_each_node_by_name(np, "l2-cache-controller") { + struct resource r[2]; + void __iomem *l2_base; + + /* Only MPC8548, MPC8540, and MPC8560 boards are affected */ + if (!of_device_is_compatible(np, + "fsl,mpc8548-l2-cache-controller") && + !of_device_is_compatible(np, + "fsl,mpc8540-l2-cache-controller") && + !of_device_is_compatible(np, + "fsl,mpc8560-l2-cache-controller")) + continue; + + err = of_address_to_resource(np, 0, &r[0]); + if (err) { + printk(KERN_WARNING "xes_mpc85xx: Could not get " + "resource for device tree node '%s'", + np->full_name); + continue; + } + + l2_base = ioremap(r[0].start, r[0].end - r[0].start + 1); + + xes_mpc85xx_configure_l2(l2_base); + } +} + +#ifdef CONFIG_PCI +static int primary_phb_addr; +#endif + +/* + * Setup the architecture + */ +#ifdef CONFIG_SMP +extern void __init mpc85xx_smp_init(void); +#endif +static void __init xes_mpc85xx_setup_arch(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; +#endif + struct device_node *root; + const char *model = "Unknown"; + + root = of_find_node_by_path("/"); + if (root == NULL) + return; + + model = of_get_property(root, "model", NULL); + + printk(KERN_INFO "X-ES MPC85xx-based single-board computer: %s\n", + model + strlen("xes,")); + + xes_mpc85xx_fixups(); + +#ifdef CONFIG_PCI + for_each_node_by_type(np, "pci") { + if (of_device_is_compatible(np, "fsl,mpc8540-pci") || + of_device_is_compatible(np, "fsl,mpc8548-pcie")) { + struct resource rsrc; + of_address_to_resource(np, 0, &rsrc); + if ((rsrc.start & 0xfffff) == primary_phb_addr) + fsl_add_bridge(np, 1); + else + fsl_add_bridge(np, 0); + } + } +#endif + +#ifdef CONFIG_SMP + mpc85xx_smp_init(); +#endif +} + +static struct of_device_id __initdata xes_mpc85xx_ids[] = { + { .type = "soc", }, + { .compatible = "soc", }, + { .compatible = "simple-bus", }, + { .compatible = "gianfar", }, + {}, +}; + +static int __init xes_mpc85xx_publish_devices(void) +{ + return of_platform_bus_probe(NULL, xes_mpc85xx_ids, NULL); +} +machine_device_initcall(xes_mpc8572, xes_mpc85xx_publish_devices); +machine_device_initcall(xes_mpc8548, xes_mpc85xx_publish_devices); +machine_device_initcall(xes_mpc8540, xes_mpc85xx_publish_devices); + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init xes_mpc8572_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "xes,MPC8572")) { +#ifdef CONFIG_PCI + primary_phb_addr = 0x8000; +#endif + return 1; + } else { + return 0; + } +} + +static int __init xes_mpc8548_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "xes,MPC8548")) { +#ifdef CONFIG_PCI + primary_phb_addr = 0xb000; +#endif + return 1; + } else { + return 0; + } +} + +static int __init xes_mpc8540_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "xes,MPC8540")) { +#ifdef CONFIG_PCI + primary_phb_addr = 0xb000; +#endif + return 1; + } else { + return 0; + } +} + +define_machine(xes_mpc8572) { + .name = "X-ES MPC8572", + .probe = xes_mpc8572_probe, + .setup_arch = xes_mpc85xx_setup_arch, + .init_IRQ = xes_mpc85xx_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(xes_mpc8548) { + .name = "X-ES MPC8548", + .probe = xes_mpc8548_probe, + .setup_arch = xes_mpc85xx_setup_arch, + .init_IRQ = xes_mpc85xx_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; + +define_machine(xes_mpc8540) { + .name = "X-ES MPC8540", + .probe = xes_mpc8540_probe, + .setup_arch = xes_mpc85xx_setup_arch, + .init_IRQ = xes_mpc85xx_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; -- cgit v1.2.3 From 79290e4b692af8a76273bab38e41a3a385dedc7b Mon Sep 17 00:00:00 2001 From: Sean MacLennan Date: Wed, 10 Jun 2009 15:09:23 +0000 Subject: powerpc/warp: Fix ISA_DMA_THRESHOLD default If no device is passed to __dma_alloc_coherent, it defaults to using ISA_DMA_THRESHOLD for the mask. This patch provides a reasonable default rather than 0. Signed-off-by: Sean MacLennan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/44x/warp.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c index c5118802a28..42e09a9f77e 100644 --- a/arch/powerpc/platforms/44x/warp.c +++ b/arch/powerpc/platforms/44x/warp.c @@ -43,7 +43,13 @@ static int __init warp_probe(void) { unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "pika,warp"); + if (!of_flat_dt_is_compatible(root, "pika,warp")) + return 0; + + /* For __dma_alloc_coherent */ + ISA_DMA_THRESHOLD = ~0L; + + return 1; } define_machine(warp) { -- cgit v1.2.3 From ba55bd74360ea4b8b95e73ed79474d37ff482b36 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Tue, 9 Jun 2009 20:48:51 +0000 Subject: powerpc: Add configurable -Werror for arch/powerpc Add the option to build the code under arch/powerpc with -Werror. The intention is to make it harder for people to inadvertantly introduce warnings in the arch/powerpc code. It needs to be configurable so that if a warning is introduced, people can easily work around it while it's being fixed. The option is a negative, ie. don't enable -Werror, so that it will be turned on for allyes and allmodconfig builds. The default is n, in the hope that developers will build with -Werror, that will probably lead to some build breaks, I am prepared to be flamed. It's not enabled for math-emu, which is a steaming pile of warnings. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile index f7419198e63..a6812ee0010 100644 --- a/arch/powerpc/platforms/Makefile +++ b/arch/powerpc/platforms/Makefile @@ -1,4 +1,6 @@ +subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror + obj-$(CONFIG_FSL_ULI1575) += fsl_uli1575.o obj-$(CONFIG_PPC_PMAC) += powermac/ -- cgit v1.2.3 From 48c931125bf228a529b8d05218e9fdda899dfa93 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Sun, 14 Jun 2009 14:45:50 +0000 Subject: powerpc: Fix invalid construct in our CPU selection Kconfig commit 5b7c3c918c9c26c50d220b2b50359208cb5a1dbe introduced an invalid construct in our CPU selection. This caused warnings, though it still appeared to do the right thing. This fixes it properly by having separate formal definitions of PPC_BOOK3S_32 and PPC_BOOK3S_64 and one statement defining PPC_BOOK3S based on the two above. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/Kconfig.cputype | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index cca6b4fc719..c4192542b80 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -21,7 +21,7 @@ choice If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx. -config PPC_BOOK3S +config PPC_BOOK3S_32 bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx" select PPC_FPU @@ -57,11 +57,14 @@ config E200 endchoice -config PPC_BOOK3S - default y +config PPC_BOOK3S_64 + def_bool y depends on PPC64 select PPC_FPU +config PPC_BOOK3S + def_bool y + depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 config POWER4_ONLY bool "Optimize for POWER4" -- cgit v1.2.3 From 87c441e54dfcf9f45593ecaf68e7e18ea53d5e13 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Wed, 17 Jun 2009 00:30:22 -0600 Subject: powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function So far, MPC512x used mpc512x_find_ips_freq() to get the bus frequency, while MPC52xx used mpc52xx_find_ipb_freq(). Despite the different clock names (IPS vs. IPB) the code was identical. Use common code for both processor families. Signed-off-by: Wolfgang Denk Signed-off-by: Grant Likely --- arch/powerpc/platforms/512x/clock.c | 2 +- arch/powerpc/platforms/512x/mpc512x.h | 1 - arch/powerpc/platforms/512x/mpc512x_shared.c | 23 -------------------- arch/powerpc/platforms/52xx/mpc52xx_common.c | 32 +--------------------------- 4 files changed, 2 insertions(+), 56 deletions(-) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c index 1bcff94eb92..f4c4c6f807d 100644 --- a/arch/powerpc/platforms/512x/clock.c +++ b/arch/powerpc/platforms/512x/clock.c @@ -24,7 +24,7 @@ #include #include -#include +#include #include #undef CLK_DEBUG diff --git a/arch/powerpc/platforms/512x/mpc512x.h b/arch/powerpc/platforms/512x/mpc512x.h index 9c03693cb00..22a5352407e 100644 --- a/arch/powerpc/platforms/512x/mpc512x.h +++ b/arch/powerpc/platforms/512x/mpc512x.h @@ -11,7 +11,6 @@ #ifndef __MPC512X_H__ #define __MPC512X_H__ -extern unsigned long mpc512x_find_ips_freq(struct device_node *node); extern void __init mpc512x_init_IRQ(void); void __init mpc512x_declare_of_platform_devices(void); #endif /* __MPC512X_H__ */ diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index d8cd579f319..434d683df5a 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -24,29 +24,6 @@ #include "mpc512x.h" -unsigned long -mpc512x_find_ips_freq(struct device_node *node) -{ - struct device_node *np; - const unsigned int *p_ips_freq = NULL; - - of_node_get(node); - while (node) { - p_ips_freq = of_get_property(node, "bus-frequency", NULL); - if (p_ips_freq) - break; - - np = of_get_parent(node); - of_node_put(node); - node = np; - } - if (node) - of_node_put(node); - - return p_ips_freq ? *p_ips_freq : 0; -} -EXPORT_SYMBOL(mpc512x_find_ips_freq); - void __init mpc512x_init_IRQ(void) { struct device_node *np; diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 8e3dd5a0f22..a46bad0c233 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -47,36 +47,6 @@ static DEFINE_SPINLOCK(mpc52xx_lock); static struct mpc52xx_gpt __iomem *mpc52xx_wdt; static struct mpc52xx_cdm __iomem *mpc52xx_cdm; -/** - * mpc52xx_find_ipb_freq - Find the IPB bus frequency for a device - * @node: device node - * - * Returns IPB bus frequency, or 0 if the bus frequency cannot be found. - */ -unsigned int -mpc52xx_find_ipb_freq(struct device_node *node) -{ - struct device_node *np; - const unsigned int *p_ipb_freq = NULL; - - of_node_get(node); - while (node) { - p_ipb_freq = of_get_property(node, "bus-frequency", NULL); - if (p_ipb_freq) - break; - - np = of_get_parent(node); - of_node_put(node); - node = np; - } - if (node) - of_node_put(node); - - return p_ipb_freq ? *p_ipb_freq : 0; -} -EXPORT_SYMBOL(mpc52xx_find_ipb_freq); - - /* * Configure the XLB arbiter settings to match what Linux expects. */ @@ -221,7 +191,7 @@ unsigned int mpc52xx_get_xtal_freq(struct device_node *node) if (!mpc52xx_cdm) return 0; - freq = mpc52xx_find_ipb_freq(node); + freq = mpc5xxx_get_bus_frequency(node); if (!freq) return 0; -- cgit v1.2.3 From e7c5a4f292e0d1f4ba9a3a94b2c8e8b71e35b25a Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 17 Jun 2009 06:30:31 -0600 Subject: powerpc/5121: make clock debug output more readable This patch refactors clock.c by replacing printk calls with pr_info/pr_cont, and uses '=' in output to connect key/value pairs Signed-off-by: Wolfram Sang Signed-off-by: Grant Likely --- arch/powerpc/platforms/512x/clock.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/platforms') diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c index f4c4c6f807d..84544d07204 100644 --- a/arch/powerpc/platforms/512x/clock.c +++ b/arch/powerpc/platforms/512x/clock.c @@ -83,13 +83,13 @@ static void dump_clocks(void) mutex_lock(&clocks_mutex); printk(KERN_INFO "CLOCKS:\n"); list_for_each_entry(p, &clocks, node) { - printk(KERN_INFO " %s %ld", p->name, p->rate); + pr_info(" %s=%ld", p->name, p->rate); if (p->parent) - printk(KERN_INFO " %s %ld", p->parent->name, + pr_cont(" %s=%ld", p->parent->name, p->parent->rate); if (p->flags & CLK_HAS_CTRL) - printk(KERN_INFO " reg/bit %d/%d", p->reg, p->bit); - printk("\n"); + pr_cont(" reg/bit=%d/%d", p->reg, p->bit); + pr_cont("\n"); } mutex_unlock(&clocks_mutex); } -- cgit v1.2.3