diff options
| -rw-r--r-- | arch/powerpc/boot/dts/canyonlands.dts | 24 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 22 | ||||
| -rw-r--r-- | arch/powerpc/mm/tlb_nohash_low.S | 35 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/44x.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/canyonlands.c | 134 | ||||
| -rw-r--r-- | arch/powerpc/platforms/44x/ppc44x_simple.c | 1 |
9 files changed, 218 insertions, 7 deletions
diff --git a/arch/powerpc/boot/dts/canyonlands.dts b/arch/powerpc/boot/dts/canyonlands.dts index 5b27a4b74b7..2779f08313a 100644 --- a/arch/powerpc/boot/dts/canyonlands.dts +++ b/arch/powerpc/boot/dts/canyonlands.dts @@ -172,6 +172,19 @@ interrupts = <0x1e 4>; }; + USBOTG0: usbotg@bff80000 { + compatible = "amcc,dwc-otg"; + reg = <0x4 0xbff80000 0x10000>; + interrupt-parent = <&USBOTG0>; + #interrupt-cells = <1>; + #address-cells = <0>; + #size-cells = <0>; + interrupts = <0x0 0x1 0x2>; + interrupt-map = </* USB-OTG */ 0x0 &UIC2 0x1c 0x4 + /* HIGH-POWER */ 0x1 &UIC1 0x1a 0x8 + /* DMA */ 0x2 &UIC0 0xc 0x4>; + }; + SATA0: sata@bffd1000 { compatible = "amcc,sata-460ex"; reg = <4 0xbffd1000 0x800 4 0xbffd0800 0x400>; @@ -233,6 +246,11 @@ }; }; + cpld@2,0 { + compatible = "amcc,ppc460ex-bcsr"; + reg = <2 0x0 0x9>; + }; + ndfc@3,0 { compatible = "ibm,ndfc"; reg = <0x00000003 0x00000000 0x00002000>; @@ -307,6 +325,12 @@ interrupts = <0x3 0x4>; }; + GPIO0: gpio@ef600b00 { + compatible = "ibm,ppc4xx-gpio"; + reg = <0xef600b00 0x00000048>; + gpio-controller; + }; + ZMII0: emac-zmii@ef600d00 { compatible = "ibm,zmii-460ex", "ibm,zmii"; reg = <0xef600d00 0x0000000c>; diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index f0a211d9692..be3cdf9134c 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -154,6 +154,7 @@ extern const char *powerpc_base_platform; #define CPU_FTR_NAP_DISABLE_L2_PR ASM_CONST(0x0000000000002000) #define CPU_FTR_DUAL_PLL_750FX ASM_CONST(0x0000000000004000) #define CPU_FTR_NO_DPM ASM_CONST(0x0000000000008000) +#define CPU_FTR_476_DD2 ASM_CONST(0x0000000000010000) #define CPU_FTR_NEED_COHERENT ASM_CONST(0x0000000000020000) #define CPU_FTR_NO_BTIC ASM_CONST(0x0000000000040000) #define CPU_FTR_NODSISRALIGN ASM_CONST(0x0000000000100000) @@ -465,7 +466,7 @@ enum { CPU_FTRS_44X | CPU_FTRS_440x6 | #endif #ifdef CONFIG_PPC_47x - CPU_FTRS_47X | + CPU_FTRS_47X | CPU_FTR_476_DD2 | #endif #ifdef CONFIG_E200 CPU_FTRS_E200 | diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index e8e915ce3d8..c9b68d07ac4 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -1811,11 +1811,11 @@ static struct cpu_spec __initdata cpu_specs[] = { .machine_check = machine_check_440A, .platform = "ppc440", }, - { /* 476 core */ - .pvr_mask = 0xffff0000, - .pvr_value = 0x11a50000, + { /* 476 DD2 core */ + .pvr_mask = 0xffffffff, + .pvr_value = 0x11a52080, .cpu_name = "476", - .cpu_features = CPU_FTRS_47X, + .cpu_features = CPU_FTRS_47X | CPU_FTR_476_DD2, .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU, .mmu_features = MMU_FTR_TYPE_47x | @@ -1839,6 +1839,20 @@ static struct cpu_spec __initdata cpu_specs[] = { .machine_check = machine_check_47x, .platform = "ppc470", }, + { /* 476 others */ + .pvr_mask = 0xffff0000, + .pvr_value = 0x11a50000, + .cpu_name = "476", + .cpu_features = CPU_FTRS_47X, + .cpu_user_features = COMMON_USER_BOOKE | + PPC_FEATURE_HAS_FPU, + .mmu_features = MMU_FTR_TYPE_47x | + MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL, + .icache_bsize = 32, + .dcache_bsize = 128, + .machine_check = machine_check_47x, + .platform = "ppc470", + }, { /* default match */ .pvr_mask = 0x00000000, .pvr_value = 0x00000000, diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S index af405eefe48..7c63c0ed4f1 100644 --- a/arch/powerpc/mm/tlb_nohash_low.S +++ b/arch/powerpc/mm/tlb_nohash_low.S @@ -189,6 +189,13 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_47x) blr #ifdef CONFIG_PPC_47x + +/* + * 47x variant of icbt + */ +# define ICBT(CT,RA,RB) \ + .long 0x7c00002c | ((CT) << 21) | ((RA) << 16) | ((RB) << 11) + /* * _tlbivax_bcast is only on 47x. We don't bother doing a runtime * check though, it will blow up soon enough if we mistakenly try @@ -206,7 +213,35 @@ _GLOBAL(_tlbivax_bcast) isync eieio tlbsync +BEGIN_FTR_SECTION + b 1f +END_FTR_SECTION_IFSET(CPU_FTR_476_DD2) + sync + wrtee r10 + blr +/* + * DD2 HW could hang if in instruction fetch happens before msync completes. + * Touch enough instruction cache lines to ensure cache hits + */ +1: mflr r9 + bl 2f +2: mflr r6 + li r7,32 + ICBT(0,r6,r7) /* touch next cache line */ + add r6,r6,r7 + ICBT(0,r6,r7) /* touch next cache line */ + add r6,r6,r7 + ICBT(0,r6,r7) /* touch next cache line */ sync + nop + nop + nop + nop + nop + nop + nop + nop + mtlr r9 wrtee r10 blr #endif /* CONFIG_PPC_47x */ diff --git a/arch/powerpc/platforms/44x/44x.h b/arch/powerpc/platforms/44x/44x.h index dbc4d2b4301..63f703ecd23 100644 --- a/arch/powerpc/platforms/44x/44x.h +++ b/arch/powerpc/platforms/44x/44x.h @@ -4,4 +4,8 @@ extern u8 as1_readb(volatile u8 __iomem *addr); extern void as1_writeb(u8 data, volatile u8 __iomem *addr); +#define GPIO0_OSRH 0xC +#define GPIO0_TSRH 0x14 +#define GPIO0_ISR1H 0x34 + #endif /* __POWERPC_PLATFORMS_44X_44X_H */ diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index 0f979c5c756..f485fc5f6d5 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -115,7 +115,6 @@ config CANYONLANDS bool "Canyonlands" depends on 44x default n - select PPC44x_SIMPLE select 460EX select PCI select PPC4xx_PCI_EXPRESS diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile index c04d16df848..553db600721 100644 --- a/arch/powerpc/platforms/44x/Makefile +++ b/arch/powerpc/platforms/44x/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_WARP) += warp.o obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o obj-$(CONFIG_XILINX_ML510) += virtex_ml510.o obj-$(CONFIG_ISS4xx) += iss4xx.o +obj-$(CONFIG_CANYONLANDS)+= canyonlands.o diff --git a/arch/powerpc/platforms/44x/canyonlands.c b/arch/powerpc/platforms/44x/canyonlands.c new file mode 100644 index 00000000000..afc5e8ea377 --- /dev/null +++ b/arch/powerpc/platforms/44x/canyonlands.c @@ -0,0 +1,134 @@ +/* + * This contain platform specific code for APM PPC460EX based Canyonlands + * board. + * + * Copyright (c) 2010, Applied Micro Circuits Corporation + * Author: Rupjyoti Sarmah <rsarmah@apm.com> + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <asm/pci-bridge.h> +#include <asm/ppc4xx.h> +#include <asm/udbg.h> +#include <asm/uic.h> +#include <linux/of_platform.h> +#include <linux/delay.h> +#include "44x.h" + +#define BCSR_USB_EN 0x11 + +static __initdata struct of_device_id ppc460ex_of_bus[] = { + { .compatible = "ibm,plb4", }, + { .compatible = "ibm,opb", }, + { .compatible = "ibm,ebc", }, + { .compatible = "simple-bus", }, + {}, +}; + +static int __init ppc460ex_device_probe(void) +{ + of_platform_bus_probe(NULL, ppc460ex_of_bus, NULL); + + return 0; +} +machine_device_initcall(canyonlands, ppc460ex_device_probe); + +/* Using this code only for the Canyonlands board. */ + +static int __init ppc460ex_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + if (of_flat_dt_is_compatible(root, "amcc,canyonlands")) { + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); + return 1; + } + return 0; +} + +/* USB PHY fixup code on Canyonlands kit. */ + +static int __init ppc460ex_canyonlands_fixup(void) +{ + u8 __iomem *bcsr ; + void __iomem *vaddr; + struct device_node *np; + int ret = 0; + + np = of_find_compatible_node(NULL, NULL, "amcc,ppc460ex-bcsr"); + if (!np) { + printk(KERN_ERR "failed did not find amcc, ppc460ex bcsr node\n"); + return -ENODEV; + } + + bcsr = of_iomap(np, 0); + of_node_put(np); + + if (!bcsr) { + printk(KERN_CRIT "Could not remap bcsr\n"); + ret = -ENODEV; + goto err_bcsr; + } + + np = of_find_compatible_node(NULL, NULL, "ibm,ppc4xx-gpio"); + if (!np) { + printk(KERN_ERR "failed did not find ibm,ppc4xx-gpio node\n"); + return -ENODEV; + } + + vaddr = of_iomap(np, 0); + of_node_put(np); + + if (!vaddr) { + printk(KERN_CRIT "Could not get gpio node address\n"); + ret = -ENODEV; + goto err_gpio; + } + /* Disable USB, through the BCSR7 bits */ + setbits8(&bcsr[7], BCSR_USB_EN); + + /* Wait for a while after reset */ + msleep(100); + + /* Enable USB here */ + clrbits8(&bcsr[7], BCSR_USB_EN); + + /* + * Configure multiplexed gpio16 and gpio19 as alternate1 output + * source after USB reset. In this configuration gpio16 will be + * USB2HStop and gpio19 will be USB2DStop. For more details refer to + * table 34-7 of PPC460EX user manual. + */ + setbits32((vaddr + GPIO0_OSRH), 0x42000000); + setbits32((vaddr + GPIO0_TSRH), 0x42000000); +err_gpio: + iounmap(vaddr); +err_bcsr: + iounmap(bcsr); + return ret; +} +machine_device_initcall(canyonlands, ppc460ex_canyonlands_fixup); +define_machine(canyonlands) { + .name = "Canyonlands", + .probe = ppc460ex_probe, + .progress = udbg_progress, + .init_IRQ = uic_init_tree, + .get_irq = uic_get_irq, + .restart = ppc4xx_reset_system, + .calibrate_decr = generic_calibrate_decr, +}; diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c index 7ddcba3b939..c81c19c0b3d 100644 --- a/arch/powerpc/platforms/44x/ppc44x_simple.c +++ b/arch/powerpc/platforms/44x/ppc44x_simple.c @@ -53,7 +53,6 @@ static char *board[] __initdata = { "amcc,arches", "amcc,bamboo", "amcc,bluestone", - "amcc,canyonlands", "amcc,glacier", "ibm,ebony", "amcc,eiger", |