diff options
Diffstat (limited to 'arch/powerpc/boot')
| -rw-r--r-- | arch/powerpc/boot/Makefile | 5 | ||||
| -rw-r--r-- | arch/powerpc/boot/dts/virtex440-ml507.dts | 296 | ||||
| -rw-r--r-- | arch/powerpc/boot/simpleboot.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/boot/virtex.c | 100 | ||||
| -rwxr-xr-x | arch/powerpc/boot/wrapper | 10 |
5 files changed, 415 insertions, 2 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 0055edbc774c..19f83c8f219d 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -68,7 +68,7 @@ src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \ cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \ - virtex405-head.S redboot-83xx.c cuboot-sam440ep.c + virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c src-boot := $(src-wlib) $(src-plat) empty.c src-boot := $(addprefix $(obj)/, $(src-boot)) @@ -276,6 +276,9 @@ ifeq ($(CONFIG_PPC32),y) image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot endif +# Allow extra targets to be added to the defconfig +image-y += $(subst ",,$(CONFIG_EXTRA_TARGETS)) + initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) initrd-y := $(patsubst zImage%, zImage.initrd%, \ $(patsubst dtbImage%, dtbImage.initrd%, \ diff --git a/arch/powerpc/boot/dts/virtex440-ml507.dts b/arch/powerpc/boot/dts/virtex440-ml507.dts new file mode 100644 index 000000000000..dc8e78e2dceb --- /dev/null +++ b/arch/powerpc/boot/dts/virtex440-ml507.dts @@ -0,0 +1,296 @@ +/* + * This file supports the Xilinx ML507 board with the 440 processor. + * A reference design for the FPGA is provided at http://git.xilinx.com. + * + * (C) Copyright 2008 Xilinx, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +/dts-v1/; + +/ { + #address-cells = <1>; + #size-cells = <1>; + compatible = "xlnx,virtex440"; + dcr-parent = <&ppc440_0>; + model = "testing"; + DDR2_SDRAM: memory@0 { + device_type = "memory"; + reg = < 0 0x10000000 >; + } ; + chosen { + bootargs = "console=ttyS0 ip=on root=/dev/ram"; + linux,stdout-path = "/plb@0/serial@83e00000"; + } ; + cpus { + #address-cells = <1>; + #cpus = <1>; + #size-cells = <0>; + ppc440_0: cpu@0 { + clock-frequency = <400000000>; + compatible = "PowerPC,440", "ibm,ppc440"; + d-cache-line-size = <0x20>; + d-cache-size = <0x8000>; + dcr-access-method = "native"; + dcr-controller ; + device_type = "cpu"; + i-cache-line-size = <0x20>; + i-cache-size = <0x8000>; + model = "PowerPC,440"; + reg = <0>; + timebase-frequency = <400000000>; + xlnx,apu-control = <1>; + xlnx,apu-udi-0 = <0>; + xlnx,apu-udi-1 = <0>; + xlnx,apu-udi-10 = <0>; + xlnx,apu-udi-11 = <0>; + xlnx,apu-udi-12 = <0>; + xlnx,apu-udi-13 = <0>; + xlnx,apu-udi-14 = <0>; + xlnx,apu-udi-15 = <0>; + xlnx,apu-udi-2 = <0>; + xlnx,apu-udi-3 = <0>; + xlnx,apu-udi-4 = <0>; + xlnx,apu-udi-5 = <0>; + xlnx,apu-udi-6 = <0>; + xlnx,apu-udi-7 = <0>; + xlnx,apu-udi-8 = <0>; + xlnx,apu-udi-9 = <0>; + xlnx,dcr-autolock-enable = <1>; + xlnx,dcu-rd-ld-cache-plb-prio = <0>; + xlnx,dcu-rd-noncache-plb-prio = <0>; + xlnx,dcu-rd-touch-plb-prio = <0>; + xlnx,dcu-rd-urgent-plb-prio = <0>; + xlnx,dcu-wr-flush-plb-prio = <0>; + xlnx,dcu-wr-store-plb-prio = <0>; + xlnx,dcu-wr-urgent-plb-prio = <0>; + xlnx,dma0-control = <0>; + xlnx,dma0-plb-prio = <0>; + xlnx,dma0-rxchannelctrl = <0x1010000>; + xlnx,dma0-rxirqtimer = <0x3ff>; + xlnx,dma0-txchannelctrl = <0x1010000>; + xlnx,dma0-txirqtimer = <0x3ff>; + xlnx,dma1-control = <0>; + xlnx,dma1-plb-prio = <0>; + xlnx,dma1-rxchannelctrl = <0x1010000>; + xlnx,dma1-rxirqtimer = <0x3ff>; + xlnx,dma1-txchannelctrl = <0x1010000>; + xlnx,dma1-txirqtimer = <0x3ff>; + xlnx,dma2-control = <0>; + xlnx,dma2-plb-prio = <0>; + xlnx,dma2-rxchannelctrl = <0x1010000>; + xlnx,dma2-rxirqtimer = <0x3ff>; + xlnx,dma2-txchannelctrl = <0x1010000>; + xlnx,dma2-txirqtimer = <0x3ff>; + xlnx,dma3-control = <0>; + xlnx,dma3-plb-prio = <0>; + xlnx,dma3-rxchannelctrl = <0x1010000>; + xlnx,dma3-rxirqtimer = <0x3ff>; + xlnx,dma3-txchannelctrl = <0x1010000>; + xlnx,dma3-txirqtimer = <0x3ff>; + xlnx,endian-reset = <0>; + xlnx,generate-plb-timespecs = <1>; + xlnx,icu-rd-fetch-plb-prio = <0>; + xlnx,icu-rd-spec-plb-prio = <0>; + xlnx,icu-rd-touch-plb-prio = <0>; + xlnx,interconnect-imask = <0xffffffff>; + xlnx,mplb-allow-lock-xfer = <1>; + xlnx,mplb-arb-mode = <0>; + xlnx,mplb-awidth = <0x20>; + xlnx,mplb-counter = <0x500>; + xlnx,mplb-dwidth = <0x80>; + xlnx,mplb-max-burst = <8>; + xlnx,mplb-native-dwidth = <0x80>; + xlnx,mplb-p2p = <0>; + xlnx,mplb-prio-dcur = <2>; + xlnx,mplb-prio-dcuw = <3>; + xlnx,mplb-prio-icu = <4>; + xlnx,mplb-prio-splb0 = <1>; + xlnx,mplb-prio-splb1 = <0>; + xlnx,mplb-read-pipe-enable = <1>; + xlnx,mplb-sync-tattribute = <0>; + xlnx,mplb-wdog-enable = <1>; + xlnx,mplb-write-pipe-enable = <1>; + xlnx,mplb-write-post-enable = <1>; + xlnx,num-dma = <1>; + xlnx,pir = <0xf>; + xlnx,ppc440mc-addr-base = <0>; + xlnx,ppc440mc-addr-high = <0xfffffff>; + xlnx,ppc440mc-arb-mode = <0>; + xlnx,ppc440mc-bank-conflict-mask = <0xc00000>; + xlnx,ppc440mc-control = <0xf810008f>; + xlnx,ppc440mc-max-burst = <8>; + xlnx,ppc440mc-prio-dcur = <2>; + xlnx,ppc440mc-prio-dcuw = <3>; + xlnx,ppc440mc-prio-icu = <4>; + xlnx,ppc440mc-prio-splb0 = <1>; + xlnx,ppc440mc-prio-splb1 = <0>; + xlnx,ppc440mc-row-conflict-mask = <0x3ffe00>; + xlnx,ppcdm-asyncmode = <0>; + xlnx,ppcds-asyncmode = <0>; + xlnx,user-reset = <0>; + DMA0: sdma@80 { + compatible = "xlnx,ll-dma-1.00.a"; + dcr-reg = < 0x80 0x11 >; + interrupt-parent = <&xps_intc_0>; + interrupts = < 9 2 0xa 2 >; + } ; + } ; + } ; + plb_v46_0: plb@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "xlnx,plb-v46-1.02.a", "simple-bus"; + ranges ; + DIP_Switches_8Bit: gpio@81460000 { + compatible = "xlnx,xps-gpio-1.00.a"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 6 2 >; + reg = < 0x81460000 0x10000 >; + xlnx,all-inputs = <1>; + xlnx,all-inputs-2 = <0>; + xlnx,dout-default = <0>; + xlnx,dout-default-2 = <0>; + xlnx,family = "virtex5"; + xlnx,gpio-width = <8>; + xlnx,interrupt-present = <1>; + xlnx,is-bidir = <1>; + xlnx,is-bidir-2 = <1>; + xlnx,is-dual = <0>; + xlnx,tri-default = <0xffffffff>; + xlnx,tri-default-2 = <0xffffffff>; + } ; + Hard_Ethernet_MAC: xps-ll-temac@81c00000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "xlnx,compound"; + ethernet@81c00000 { + compatible = "xlnx,xps-ll-temac-1.01.b"; + device_type = "network"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 5 2 >; + llink-connected = <&DMA0>; + local-mac-address = [ 02 00 00 00 00 00 ]; + reg = < 0x81c00000 0x40 >; + xlnx,bus2core-clk-ratio = <1>; + xlnx,phy-type = <1>; + xlnx,phyaddr = <1>; + xlnx,rxcsum = <1>; + xlnx,rxfifo = <0x1000>; + xlnx,temac-type = <0>; + xlnx,txcsum = <1>; + xlnx,txfifo = <0x1000>; + } ; + } ; + LEDs_8Bit: gpio@81400000 { + compatible = "xlnx,xps-gpio-1.00.a"; + reg = < 0x81400000 0x10000 >; + xlnx,all-inputs = <0>; + xlnx,all-inputs-2 = <0>; + xlnx,dout-default = <0>; + xlnx,dout-default-2 = <0>; + xlnx,family = "virtex5"; + xlnx,gpio-width = <8>; + xlnx,interrupt-present = <0>; + xlnx,is-bidir = <1>; + xlnx,is-bidir-2 = <1>; + xlnx,is-dual = <0>; + xlnx,tri-default = <0xffffffff>; + xlnx,tri-default-2 = <0xffffffff>; + } ; + LEDs_Positions: gpio@81420000 { + compatible = "xlnx,xps-gpio-1.00.a"; + reg = < 0x81420000 0x10000 >; + xlnx,all-inputs = <0>; + xlnx,all-inputs-2 = <0>; + xlnx,dout-default = <0>; + xlnx,dout-default-2 = <0>; + xlnx,family = "virtex5"; + xlnx,gpio-width = <5>; + xlnx,interrupt-present = <0>; + xlnx,is-bidir = <1>; + xlnx,is-bidir-2 = <1>; + xlnx,is-dual = <0>; + xlnx,tri-default = <0xffffffff>; + xlnx,tri-default-2 = <0xffffffff>; + } ; + Push_Buttons_5Bit: gpio@81440000 { + compatible = "xlnx,xps-gpio-1.00.a"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 7 2 >; + reg = < 0x81440000 0x10000 >; + xlnx,all-inputs = <1>; + xlnx,all-inputs-2 = <0>; + xlnx,dout-default = <0>; + xlnx,dout-default-2 = <0>; + xlnx,family = "virtex5"; + xlnx,gpio-width = <5>; + xlnx,interrupt-present = <1>; + xlnx,is-bidir = <1>; + xlnx,is-bidir-2 = <1>; + xlnx,is-dual = <0>; + xlnx,tri-default = <0xffffffff>; + xlnx,tri-default-2 = <0xffffffff>; + } ; + RS232_Uart_1: serial@83e00000 { + clock-frequency = <100000000>; + compatible = "xlnx,xps-uart16550-2.00.a", "ns16550"; + current-speed = <0x2580>; + device_type = "serial"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 8 2 >; + reg = < 0x83e00000 0x10000 >; + reg-offset = <3>; + reg-shift = <2>; + xlnx,family = "virtex5"; + xlnx,has-external-rclk = <0>; + xlnx,has-external-xin = <0>; + xlnx,is-a-16550 = <1>; + } ; + SysACE_CompactFlash: sysace@83600000 { + compatible = "xlnx,xps-sysace-1.00.a"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 4 2 >; + reg = < 0x83600000 0x10000 >; + xlnx,family = "virtex5"; + xlnx,mem-width = <0x10>; + } ; + xps_bram_if_cntlr_1: xps-bram-if-cntlr@ffff0000 { + compatible = "xlnx,xps-bram-if-cntlr-1.00.a"; + reg = < 0xffff0000 0x10000 >; + xlnx,family = "virtex5"; + } ; + xps_intc_0: interrupt-controller@81800000 { + #interrupt-cells = <2>; + compatible = "xlnx,xps-intc-1.00.a"; + interrupt-controller ; + reg = < 0x81800000 0x10000 >; + xlnx,num-intr-inputs = <0xb>; + } ; + xps_timebase_wdt_1: xps-timebase-wdt@83a00000 { + compatible = "xlnx,xps-timebase-wdt-1.00.b"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 2 0 1 2 >; + reg = < 0x83a00000 0x10000 >; + xlnx,family = "virtex5"; + xlnx,wdt-enable-once = <0>; + xlnx,wdt-interval = <0x1e>; + } ; + xps_timer_1: timer@83c00000 { + compatible = "xlnx,xps-timer-1.00.a"; + interrupt-parent = <&xps_intc_0>; + interrupts = < 3 2 >; + reg = < 0x83c00000 0x10000 >; + xlnx,count-width = <0x20>; + xlnx,family = "virtex5"; + xlnx,gen0-assert = <1>; + xlnx,gen1-assert = <1>; + xlnx,one-timer-only = <1>; + xlnx,trig0-assert = <1>; + xlnx,trig1-assert = <1>; + } ; + } ; +} ; diff --git a/arch/powerpc/boot/simpleboot.c b/arch/powerpc/boot/simpleboot.c index 86cd285bccc6..c58a0dada992 100644 --- a/arch/powerpc/boot/simpleboot.c +++ b/arch/powerpc/boot/simpleboot.c @@ -23,6 +23,8 @@ BSS_STACK(4*1024); +extern int platform_specific_init(void) __attribute__((weak)); + void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7) { @@ -80,5 +82,9 @@ void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, /* prepare the device tree and find the console */ fdt_init(_dtb_start); + + if (platform_specific_init) + platform_specific_init(); + serial_console_init(); } diff --git a/arch/powerpc/boot/virtex.c b/arch/powerpc/boot/virtex.c new file mode 100644 index 000000000000..f622805f8000 --- /dev/null +++ b/arch/powerpc/boot/virtex.c @@ -0,0 +1,100 @@ +/* + * The platform specific code for virtex devices since a boot loader is not + * always used. + * + * (C) Copyright 2008 Xilinx, Inc. + * + * This program 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 "ops.h" +#include "io.h" +#include "stdio.h" + +#define UART_DLL 0 /* Out: Divisor Latch Low */ +#define UART_DLM 1 /* Out: Divisor Latch High */ +#define UART_FCR 2 /* Out: FIFO Control Register */ +#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */ +#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */ +#define UART_LCR 3 /* Out: Line Control Register */ +#define UART_MCR 4 /* Out: Modem Control Register */ +#define UART_MCR_RTS 0x02 /* RTS complement */ +#define UART_MCR_DTR 0x01 /* DTR complement */ +#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */ +#define UART_LCR_WLEN8 0x03 /* Wordlength: 8 bits */ + +static int virtex_ns16550_console_init(void *devp) +{ + unsigned char *reg_base; + u32 reg_shift, reg_offset, clk, spd; + u16 divisor; + int n; + + if (dt_get_virtual_reg(devp, (void **)®_base, 1) < 1) + return -1; + + n = getprop(devp, "reg-offset", ®_offset, sizeof(reg_offset)); + if (n == sizeof(reg_offset)) + reg_base += reg_offset; + + n = getprop(devp, "reg-shift", ®_shift, sizeof(reg_shift)); + if (n != sizeof(reg_shift)) + reg_shift = 0; + + n = getprop(devp, "current-speed", (void *)&spd, sizeof(spd)); + if (n != sizeof(spd)) + spd = 9600; + + /* should there be a default clock rate?*/ + n = getprop(devp, "clock-frequency", (void *)&clk, sizeof(clk)); + if (n != sizeof(clk)) + return -1; + + divisor = clk / (16 * spd); + + /* Access baud rate */ + out_8(reg_base + (UART_LCR << reg_shift), UART_LCR_DLAB); + + /* Baud rate based on input clock */ + out_8(reg_base + (UART_DLL << reg_shift), divisor & 0xFF); + out_8(reg_base + (UART_DLM << reg_shift), divisor >> 8); + + /* 8 data, 1 stop, no parity */ + out_8(reg_base + (UART_LCR << reg_shift), UART_LCR_WLEN8); + + /* RTS/DTR */ + out_8(reg_base + (UART_MCR << reg_shift), UART_MCR_RTS | UART_MCR_DTR); + + /* Clear transmitter and receiver */ + out_8(reg_base + (UART_FCR << reg_shift), + UART_FCR_CLEAR_XMIT | UART_FCR_CLEAR_RCVR); + return 0; +} + +/* For virtex, the kernel may be loaded without using a bootloader and if so + some UARTs need more setup than is provided in the normal console init +*/ +int platform_specific_init(void) +{ + void *devp; + char devtype[MAX_PROP_LEN]; + char path[MAX_PATH_LEN]; + + devp = finddevice("/chosen"); + if (devp == NULL) + return -1; + + if (getprop(devp, "linux,stdout-path", path, MAX_PATH_LEN) > 0) { + devp = finddevice(path); + if (devp == NULL) + return -1; + + if ((getprop(devp, "device_type", devtype, sizeof(devtype)) > 0) + && !strcmp(devtype, "serial") + && (dt_is_compatible(devp, "ns16550"))) + virtex_ns16550_console_init(devp); + } + return 0; +} diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index df2358e9f1ca..644bf9d4ea00 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -207,7 +207,15 @@ adder875-redboot) binary=y ;; simpleboot-virtex405-*) - platformo="$object/virtex405-head.o $object/simpleboot.o" + platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o" + binary=y + ;; +simpleboot-virtex440-*) + platformo="$object/simpleboot.o $object/virtex.o" + binary=y + ;; +simpleboot-*) + platformo="$object/simpleboot.o" binary=y ;; asp834x-redboot) |