diff options
Diffstat (limited to 'arch/ppc/platforms')
| -rw-r--r-- | arch/ppc/platforms/Makefile | 1 | ||||
| -rw-r--r-- | arch/ppc/platforms/adir.h | 95 | ||||
| -rw-r--r-- | arch/ppc/platforms/adir_pci.c | 247 | ||||
| -rw-r--r-- | arch/ppc/platforms/adir_pic.c | 130 | ||||
| -rw-r--r-- | arch/ppc/platforms/adir_setup.c | 210 |
5 files changed, 0 insertions, 683 deletions
diff --git a/arch/ppc/platforms/Makefile b/arch/ppc/platforms/Makefile index 5488a053f415..fcd03e52f602 100644 --- a/arch/ppc/platforms/Makefile +++ b/arch/ppc/platforms/Makefile @@ -21,7 +21,6 @@ obj-$(CONFIG_CPU_FREQ_PMAC) += pmac_cpufreq.o endif obj-$(CONFIG_PMAC_BACKLIGHT) += pmac_backlight.o obj-$(CONFIG_PREP_RESIDUAL) += residual.o -obj-$(CONFIG_ADIR) += adir_setup.o adir_pic.o adir_pci.o obj-$(CONFIG_PQ2ADS) += pq2ads.o obj-$(CONFIG_TQM8260) += tqm8260_setup.o obj-$(CONFIG_CPCI690) += cpci690.o diff --git a/arch/ppc/platforms/adir.h b/arch/ppc/platforms/adir.h deleted file mode 100644 index 13a748b46956..000000000000 --- a/arch/ppc/platforms/adir.h +++ /dev/null @@ -1,95 +0,0 @@ -/* - * arch/ppc/platforms/adir.h - * - * Definitions for SBS Adirondack board support - * - * By Michael Sokolov <msokolov@ivan.Harhan.ORG> - */ - -#ifndef __PPC_PLATFORMS_ADIR_H -#define __PPC_PLATFORMS_ADIR_H - -/* - * SBS Adirondack definitions - */ - -/* PPC physical address space layout. We use the one set up by the firmware. */ -#define ADIR_PCI32_MEM_BASE 0x80000000 -#define ADIR_PCI32_MEM_SIZE 0x20000000 -#define ADIR_PCI64_MEM_BASE 0xA0000000 -#define ADIR_PCI64_MEM_SIZE 0x20000000 -#define ADIR_PCI32_IO_BASE 0xC0000000 -#define ADIR_PCI32_IO_SIZE 0x10000000 -#define ADIR_PCI64_IO_BASE 0xD0000000 -#define ADIR_PCI64_IO_SIZE 0x10000000 -#define ADIR_PCI64_PHB 0xFF400000 -#define ADIR_PCI32_PHB 0xFF500000 - -#define ADIR_PCI64_CONFIG_ADDR (ADIR_PCI64_PHB + 0x000f8000) -#define ADIR_PCI64_CONFIG_DATA (ADIR_PCI64_PHB + 0x000f8010) - -#define ADIR_PCI32_CONFIG_ADDR (ADIR_PCI32_PHB + 0x000f8000) -#define ADIR_PCI32_CONFIG_DATA (ADIR_PCI32_PHB + 0x000f8010) - -/* System memory as seen from PCI */ -#define ADIR_PCI_SYS_MEM_BASE 0x80000000 - -/* Static virtual mapping of PCI I/O */ -#define ADIR_PCI32_VIRT_IO_BASE 0xFE000000 -#define ADIR_PCI32_VIRT_IO_SIZE 0x01000000 -#define ADIR_PCI64_VIRT_IO_BASE 0xFF000000 -#define ADIR_PCI64_VIRT_IO_SIZE 0x01000000 - -/* Registers */ -#define ADIR_NVRAM_RTC_ADDR 0x74 -#define ADIR_NVRAM_RTC_DATA 0x75 - -#define ADIR_BOARD_ID_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF0) -#define ADIR_CPLD1REV_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF1) -#define ADIR_CPLD2REV_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF2) -#define ADIR_FLASHCTL_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF3) -#define ADIR_CPC710_STAT_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF4) -#define ADIR_CLOCK_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF5) -#define ADIR_GPIO_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF8) -#define ADIR_MISC_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFF9) -#define ADIR_LED_REG (ADIR_PCI32_VIRT_IO_BASE + 0x08FFFA) - -#define ADIR_CLOCK_REG_PD 0x10 -#define ADIR_CLOCK_REG_SPREAD 0x08 -#define ADIR_CLOCK_REG_SEL133 0x04 -#define ADIR_CLOCK_REG_SEL1 0x02 -#define ADIR_CLOCK_REG_SEL0 0x01 - -#define ADIR_PROCA_INT_MASK (ADIR_PCI32_VIRT_IO_BASE + 0x0EFFF0) -#define ADIR_PROCB_INT_MASK (ADIR_PCI32_VIRT_IO_BASE + 0x0EFFF2) -#define ADIR_PROCA_INT_STAT (ADIR_PCI32_VIRT_IO_BASE + 0x0EFFF4) -#define ADIR_PROCB_INT_STAT (ADIR_PCI32_VIRT_IO_BASE + 0x0EFFF6) - -/* Linux IRQ numbers */ -#define ADIR_IRQ_NONE -1 -#define ADIR_IRQ_SERIAL2 3 -#define ADIR_IRQ_SERIAL1 4 -#define ADIR_IRQ_FDC 6 -#define ADIR_IRQ_PARALLEL 7 -#define ADIR_IRQ_VIA_AUDIO 10 -#define ADIR_IRQ_VIA_USB 11 -#define ADIR_IRQ_IDE0 14 -#define ADIR_IRQ_IDE1 15 -#define ADIR_IRQ_PCI0_INTA 16 -#define ADIR_IRQ_PCI0_INTB 17 -#define ADIR_IRQ_PCI0_INTC 18 -#define ADIR_IRQ_PCI0_INTD 19 -#define ADIR_IRQ_PCI1_INTA 20 -#define ADIR_IRQ_PCI1_INTB 21 -#define ADIR_IRQ_PCI1_INTC 22 -#define ADIR_IRQ_PCI1_INTD 23 -#define ADIR_IRQ_MBSCSI 24 /* motherboard SCSI */ -#define ADIR_IRQ_MBETH1 25 /* motherboard Ethernet 1 */ -#define ADIR_IRQ_MBETH0 26 /* motherboard Ethernet 0 */ -#define ADIR_IRQ_CPC710_INT1 27 -#define ADIR_IRQ_CPC710_INT2 28 -#define ADIR_IRQ_VT82C686_NMI 29 -#define ADIR_IRQ_VT82C686_INTR 30 -#define ADIR_IRQ_INTERPROC 31 - -#endif /* __PPC_PLATFORMS_ADIR_H */ diff --git a/arch/ppc/platforms/adir_pci.c b/arch/ppc/platforms/adir_pci.c deleted file mode 100644 index f94ac53e0711..000000000000 --- a/arch/ppc/platforms/adir_pci.c +++ /dev/null @@ -1,247 +0,0 @@ -/* - * arch/ppc/platforms/adir_pci.c - * - * PCI support for SBS Adirondack - * - * By Michael Sokolov <msokolov@ivan.Harhan.ORG> - * based on the K2 version by Matt Porter <mporter@mvista.com> - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/slab.h> - -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/machdep.h> -#include <asm/pci-bridge.h> - -#include <syslib/cpc710.h> -#include "adir.h" - -#undef DEBUG -#ifdef DEBUG -#define DBG(x...) printk(x) -#else -#define DBG(x...) -#endif /* DEBUG */ - -static inline int __init -adir_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin) -{ -#define PCIIRQ(a,b,c,d) {ADIR_IRQ_##a,ADIR_IRQ_##b,ADIR_IRQ_##c,ADIR_IRQ_##d}, - struct pci_controller *hose = pci_bus_to_hose(dev->bus->number); - /* - * The three PCI devices on the motherboard have dedicated lines to the - * CPLD interrupt controller, bypassing the standard PCI INTA-D and the - * PC interrupt controller. All other PCI devices (slots) have usual - * staggered INTA-D lines, resulting in 8 lines total (PCI0 INTA-D and - * PCI1 INTA-D). All 8 go to the CPLD interrupt controller. PCI0 INTA-D - * also go to the south bridge, so we have the option of taking them - * via the CPLD interrupt controller or via the south bridge 8259 - * 8258 thingy. PCI1 INTA-D can only be taken via the CPLD interrupt - * controller. We take all PCI interrupts via the CPLD interrupt - * controller as recommended by SBS. - * - * We also have some monkey business with the PCI devices within the - * VT82C686B south bridge itself. This chip actually has 7 functions on - * its IDSEL. Function 0 is the actual south bridge, function 1 is IDE, - * and function 4 is some special stuff. The other 4 functions are just - * regular PCI devices bundled in the chip. 2 and 3 are USB UHCIs and 5 - * and 6 are audio (not supported on the Adirondack). - * - * This is where the monkey business begins. PCI devices are supposed - * to signal normal PCI interrupts. But the 4 functions in question are - * located in the south bridge chip, which is designed with the - * assumption that it will be fielding PCI INTA-D interrupts rather - * than generating them. Here's what it does. Each of the functions in - * question routes its interrupt to one of the IRQs on the 8259 thingy. - * Which one? It looks at the Interrupt Line register in the PCI config - * space, even though the PCI spec says it's for BIOS/OS interaction - * only. - * - * How do we deal with this? We take these interrupts via 8259 IRQs as - * we have to. We return the desired IRQ numbers from this routine when - * called for the functions in question. The PCI scan code will then - * stick our return value into the Interrupt Line register in the PCI - * config space, and the interrupt will actually go there. We identify - * these functions within the south bridge IDSEL by their interrupt pin - * numbers, as the VT82C686B has 04 in the Interrupt Pin register for - * USB and 03 for audio. - */ - if (!hose->index) { - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - /* south bridge */ PCIIRQ(IDE0, NONE, VIA_AUDIO, VIA_USB) - /* Ethernet 0 */ PCIIRQ(MBETH0, MBETH0, MBETH0, MBETH0) - /* PCI0 slot 1 */ PCIIRQ(PCI0_INTB, PCI0_INTC, PCI0_INTD, PCI0_INTA) - /* PCI0 slot 2 */ PCIIRQ(PCI0_INTC, PCI0_INTD, PCI0_INTA, PCI0_INTB) - /* PCI0 slot 3 */ PCIIRQ(PCI0_INTD, PCI0_INTA, PCI0_INTB, PCI0_INTC) - }; - const long min_idsel = 3, max_idsel = 7, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; - } else { - static char pci_irq_table[][4] = - /* - * PCI IDSEL/INTPIN->INTLINE - * A B C D - */ - { - /* Ethernet 1 */ PCIIRQ(MBETH1, MBETH1, MBETH1, MBETH1) - /* SCSI */ PCIIRQ(MBSCSI, MBSCSI, MBSCSI, MBSCSI) - /* PCI1 slot 1 */ PCIIRQ(PCI1_INTB, PCI1_INTC, PCI1_INTD, PCI1_INTA) - /* PCI1 slot 2 */ PCIIRQ(PCI1_INTC, PCI1_INTD, PCI1_INTA, PCI1_INTB) - /* PCI1 slot 3 */ PCIIRQ(PCI1_INTD, PCI1_INTA, PCI1_INTB, PCI1_INTC) - }; - const long min_idsel = 3, max_idsel = 7, irqs_per_slot = 4; - return PCI_IRQ_TABLE_LOOKUP; - } -#undef PCIIRQ -} - -static void -adir_pcibios_fixup_resources(struct pci_dev *dev) -{ - int i; - - if ((dev->vendor == PCI_VENDOR_ID_IBM) && - (dev->device == PCI_DEVICE_ID_IBM_CPC710_PCI64)) - { - DBG("Fixup CPC710 resources\n"); - for (i=0; i<DEVICE_COUNT_RESOURCE; i++) - { - dev->resource[i].start = 0; - dev->resource[i].end = 0; - } - } -} - -/* - * CPC710 DD3 has an errata causing it to hang the system if a type 0 config - * cycle is attempted on its PCI32 interface with a device number > 21. - * CPC710's PCI bridges map device numbers 1 through 21 to AD11 through AD31. - * Per the PCI spec it MUST accept all other device numbers and do nothing, and - * software MUST scan all device numbers without assuming how IDSELs are - * mapped. However, as the CPC710 DD3's errata causes such correct scanning - * procedure to hang the system, we have no choice but to introduce this hack - * of knowingly avoiding device numbers > 21 on PCI0, - */ -static int -adir_exclude_device(u_char bus, u_char devfn) -{ - if ((bus == 0) && (PCI_SLOT(devfn) > 21)) - return PCIBIOS_DEVICE_NOT_FOUND; - else - return PCIBIOS_SUCCESSFUL; -} - -void adir_find_bridges(void) -{ - struct pci_controller *hose_a, *hose_b; - - /* Setup PCI32 hose */ - hose_a = pcibios_alloc_controller(); - if (!hose_a) - return; - - hose_a->first_busno = 0; - hose_a->last_busno = 0xff; - hose_a->pci_mem_offset = ADIR_PCI32_MEM_BASE; - hose_a->io_space.start = 0; - hose_a->io_space.end = ADIR_PCI32_VIRT_IO_SIZE - 1; - hose_a->mem_space.start = 0; - hose_a->mem_space.end = ADIR_PCI32_MEM_SIZE - 1; - hose_a->io_resource.start = 0; - hose_a->io_resource.end = ADIR_PCI32_VIRT_IO_SIZE - 1; - hose_a->io_resource.flags = IORESOURCE_IO; - hose_a->mem_resources[0].start = ADIR_PCI32_MEM_BASE; - hose_a->mem_resources[0].end = ADIR_PCI32_MEM_BASE + - ADIR_PCI32_MEM_SIZE - 1; - hose_a->mem_resources[0].flags = IORESOURCE_MEM; - hose_a->io_base_phys = ADIR_PCI32_IO_BASE; - hose_a->io_base_virt = (void *) ADIR_PCI32_VIRT_IO_BASE; - - ppc_md.pci_exclude_device = adir_exclude_device; - setup_indirect_pci(hose_a, ADIR_PCI32_CONFIG_ADDR, - ADIR_PCI32_CONFIG_DATA); - - /* Initialize PCI32 bus registers */ - early_write_config_byte(hose_a, - hose_a->first_busno, - PCI_DEVFN(0, 0), - CPC710_BUS_NUMBER, - hose_a->first_busno); - early_write_config_byte(hose_a, - hose_a->first_busno, - PCI_DEVFN(0, 0), - CPC710_SUB_BUS_NUMBER, - hose_a->last_busno); - - hose_a->last_busno = pciauto_bus_scan(hose_a, hose_a->first_busno); - - /* Write out correct max subordinate bus number for hose A */ - early_write_config_byte(hose_a, - hose_a->first_busno, - PCI_DEVFN(0, 0), - CPC710_SUB_BUS_NUMBER, - hose_a->last_busno); - - /* Setup PCI64 hose */ - hose_b = pcibios_alloc_controller(); - if (!hose_b) - return; - - hose_b->first_busno = hose_a->last_busno + 1; - hose_b->last_busno = 0xff; - hose_b->pci_mem_offset = ADIR_PCI64_MEM_BASE; - hose_b->io_space.start = 0; - hose_b->io_space.end = ADIR_PCI64_VIRT_IO_SIZE - 1; - hose_b->mem_space.start = 0; - hose_b->mem_space.end = ADIR_PCI64_MEM_SIZE - 1; - hose_b->io_resource.start = 0; - hose_b->io_resource.end = ADIR_PCI64_VIRT_IO_SIZE - 1; - hose_b->io_resource.flags = IORESOURCE_IO; - hose_b->mem_resources[0].start = ADIR_PCI64_MEM_BASE; - hose_b->mem_resources[0].end = ADIR_PCI64_MEM_BASE + - ADIR_PCI64_MEM_SIZE - 1; - hose_b->mem_resources[0].flags = IORESOURCE_MEM; - hose_b->io_base_phys = ADIR_PCI64_IO_BASE; - hose_b->io_base_virt = (void *) ADIR_PCI64_VIRT_IO_BASE; - - setup_indirect_pci(hose_b, ADIR_PCI64_CONFIG_ADDR, - ADIR_PCI64_CONFIG_DATA); - - /* Initialize PCI64 bus registers */ - early_write_config_byte(hose_b, - 0, - PCI_DEVFN(0, 0), - CPC710_SUB_BUS_NUMBER, - 0xff); - - early_write_config_byte(hose_b, - 0, - PCI_DEVFN(0, 0), - CPC710_BUS_NUMBER, - hose_b->first_busno); - - hose_b->last_busno = pciauto_bus_scan(hose_b, - hose_b->first_busno); - - /* Write out correct max subordinate bus number for hose B */ - early_write_config_byte(hose_b, - hose_b->first_busno, - PCI_DEVFN(0, 0), - CPC710_SUB_BUS_NUMBER, - hose_b->last_busno); - - ppc_md.pcibios_fixup = NULL; - ppc_md.pcibios_fixup_resources = adir_pcibios_fixup_resources; - ppc_md.pci_swizzle = common_swizzle; - ppc_md.pci_map_irq = adir_map_irq; -} diff --git a/arch/ppc/platforms/adir_pic.c b/arch/ppc/platforms/adir_pic.c deleted file mode 100644 index 9947cba52af5..000000000000 --- a/arch/ppc/platforms/adir_pic.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * arch/ppc/platforms/adir_pic.c - * - * Interrupt controller support for SBS Adirondack - * - * By Michael Sokolov <msokolov@ivan.Harhan.ORG> - * based on the K2 and SCM versions by Matt Porter <mporter@mvista.com> - */ - -#include <linux/stddef.h> -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/interrupt.h> - -#include <asm/io.h> -#include <asm/i8259.h> -#include "adir.h" - -static void adir_onboard_pic_enable(unsigned int irq); -static void adir_onboard_pic_disable(unsigned int irq); - -__init static void -adir_onboard_pic_init(void) -{ - volatile u_short *maskreg = (volatile u_short *) ADIR_PROCA_INT_MASK; - - /* Disable all Adirondack onboard interrupts */ - out_be16(maskreg, 0xFFFF); -} - -static int -adir_onboard_pic_get_irq(void) -{ - volatile u_short *statreg = (volatile u_short *) ADIR_PROCA_INT_STAT; - int irq; - u_short int_status, int_test; - - int_status = in_be16(statreg); - for (irq = 0, int_test = 1; irq < 16; irq++, int_test <<= 1) { - if (int_status & int_test) - break; - } - - if (irq == 16) - return -1; - - return (irq+16); -} - -static void -adir_onboard_pic_enable(unsigned int irq) -{ - volatile u_short *maskreg = (volatile u_short *) ADIR_PROCA_INT_MASK; - - /* Change irq to Adirondack onboard native value */ - irq -= 16; - - /* Enable requested irq number */ - out_be16(maskreg, in_be16(maskreg) & ~(1 << irq)); -} - -static void -adir_onboard_pic_disable(unsigned int irq) -{ - volatile u_short *maskreg = (volatile u_short *) ADIR_PROCA_INT_MASK; - - /* Change irq to Adirondack onboard native value */ - irq -= 16; - - /* Disable requested irq number */ - out_be16(maskreg, in_be16(maskreg) | (1 << irq)); -} - -static struct hw_interrupt_type adir_onboard_pic = { - " ADIR PIC ", - NULL, - NULL, - adir_onboard_pic_enable, /* unmask */ - adir_onboard_pic_disable, /* mask */ - adir_onboard_pic_disable, /* mask and ack */ - NULL, - NULL -}; - -static struct irqaction noop_action = { - .handler = no_action, - .flags = SA_INTERRUPT, - .mask = CPU_MASK_NONE, - .name = "82c59 primary cascade", -}; - -/* - * Linux interrupt values are assigned as follows: - * - * 0-15 VT82C686 8259 interrupts - * 16-31 Adirondack CPLD interrupts - */ -__init void -adir_init_IRQ(void) -{ - int i; - - /* Initialize the cascaded 8259's on the VT82C686 */ - for (i=0; i<16; i++) - irq_desc[i].handler = &i8259_pic; - i8259_init(NULL); - - /* Initialize Adirondack CPLD PIC and enable 8259 interrupt cascade */ - for (i=16; i<32; i++) - irq_desc[i].handler = &adir_onboard_pic; - adir_onboard_pic_init(); - - /* Enable 8259 interrupt cascade */ - setup_irq(ADIR_IRQ_VT82C686_INTR, &noop_action); -} - -int -adir_get_irq(struct pt_regs *regs) -{ - int irq; - - if ((irq = adir_onboard_pic_get_irq()) < 0) - return irq; - - if (irq == ADIR_IRQ_VT82C686_INTR) - irq = i8259_irq(regs); - - return irq; -} diff --git a/arch/ppc/platforms/adir_setup.c b/arch/ppc/platforms/adir_setup.c deleted file mode 100644 index 6a6754ee0617..000000000000 --- a/arch/ppc/platforms/adir_setup.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * arch/ppc/platforms/adir_setup.c - * - * Board setup routines for SBS Adirondack - * - * By Michael Sokolov <msokolov@ivan.Harhan.ORG> - * based on the K2 version by Matt Porter <mporter@mvista.com> - */ - -#include <linux/config.h> -#include <linux/stddef.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/pci.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/major.h> -#include <linux/initrd.h> -#include <linux/console.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> - -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <asm/machdep.h> -#include <asm/time.h> -#include <asm/todc.h> -#include <asm/bootinfo.h> - -#include "adir.h" - -extern void adir_init_IRQ(void); -extern int adir_get_irq(struct pt_regs *); -extern void adir_find_bridges(void); -extern unsigned long loops_per_jiffy; - -static unsigned int cpu_750cx[16] = { - 5, 15, 14, 0, 4, 13, 0, 9, 6, 11, 8, 10, 16, 12, 7, 0 -}; - -static int -adir_get_bus_speed(void) -{ - if (!(*((u_char *) ADIR_CLOCK_REG) & ADIR_CLOCK_REG_SEL133)) - return 100000000; - else - return 133333333; -} - -static int -adir_get_cpu_speed(void) -{ - unsigned long hid1; - int cpu_speed; - - hid1 = mfspr(SPRN_HID1) >> 28; - - hid1 = cpu_750cx[hid1]; - - cpu_speed = adir_get_bus_speed()*hid1/2; - return cpu_speed; -} - -static void __init -adir_calibrate_decr(void) -{ - int freq, divisor = 4; - - /* determine processor bus speed */ - freq = adir_get_bus_speed(); - tb_ticks_per_jiffy = freq / HZ / divisor; - tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000); -} - -static int -adir_show_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "vendor\t\t: SBS\n"); - seq_printf(m, "machine\t\t: Adirondack\n"); - seq_printf(m, "cpu speed\t: %dMhz\n", adir_get_cpu_speed()/1000000); - seq_printf(m, "bus speed\t: %dMhz\n", adir_get_bus_speed()/1000000); - seq_printf(m, "memory type\t: SDRAM\n"); - - return 0; -} - -extern char cmd_line[]; - -TODC_ALLOC(); - -static void __init -adir_setup_arch(void) -{ - unsigned int cpu; - - /* Setup TODC access */ - TODC_INIT(TODC_TYPE_MC146818, ADIR_NVRAM_RTC_ADDR, 0, - ADIR_NVRAM_RTC_DATA, 8); - - /* init to some ~sane value until calibrate_delay() runs */ - loops_per_jiffy = 50000000/HZ; - - /* Setup PCI host bridges */ - adir_find_bridges(); - -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start) - ROOT_DEV = Root_RAM0; - else -#endif -#ifdef CONFIG_ROOT_NFS - ROOT_DEV = Root_NFS; -#else - ROOT_DEV = Root_SDA1; -#endif - - /* Identify the system */ - printk("System Identification: SBS Adirondack - PowerPC 750CXe @ %d Mhz\n", adir_get_cpu_speed()/1000000); - printk("SBS Adirondack port (C) 2001 SBS Technologies, Inc.\n"); - - /* Identify the CPU manufacturer */ - cpu = mfspr(SPRN_PVR); - printk("CPU manufacturer: IBM [rev=%04x]\n", (cpu & 0xffff)); -} - -static void -adir_restart(char *cmd) -{ - local_irq_disable(); - /* SRR0 has system reset vector, SRR1 has default MSR value */ - /* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */ - __asm__ __volatile__ - ("lis 3,0xfff0\n\t" - "ori 3,3,0x0100\n\t" - "mtspr 26,3\n\t" - "li 3,0\n\t" - "mtspr 27,3\n\t" - "rfi\n\t"); - for(;;); -} - -static void -adir_power_off(void) -{ - for(;;); -} - -static void -adir_halt(void) -{ - adir_restart(NULL); -} - -static unsigned long __init -adir_find_end_of_memory(void) -{ - return boot_mem_size; -} - -static void __init -adir_map_io(void) -{ - io_block_mapping(ADIR_PCI32_VIRT_IO_BASE, ADIR_PCI32_IO_BASE, - ADIR_PCI32_VIRT_IO_SIZE, _PAGE_IO); - io_block_mapping(ADIR_PCI64_VIRT_IO_BASE, ADIR_PCI64_IO_BASE, - ADIR_PCI64_VIRT_IO_SIZE, _PAGE_IO); -} - -void __init -platform_init(unsigned long r3, unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7) -{ - /* - * On the Adirondack we use bi_recs and pass the pointer to them in R3. - */ - parse_bootinfo((struct bi_record *) (r3 + KERNELBASE)); - - /* Remember, isa_io_base is virtual but isa_mem_base is physical! */ - isa_io_base = ADIR_PCI32_VIRT_IO_BASE; - isa_mem_base = ADIR_PCI32_MEM_BASE; - pci_dram_offset = ADIR_PCI_SYS_MEM_BASE; - - ppc_md.setup_arch = adir_setup_arch; - ppc_md.show_cpuinfo = adir_show_cpuinfo; - ppc_md.irq_canonicalize = NULL; - ppc_md.init_IRQ = adir_init_IRQ; - ppc_md.get_irq = adir_get_irq; - ppc_md.init = NULL; - - ppc_md.find_end_of_memory = adir_find_end_of_memory; - ppc_md.setup_io_mappings = adir_map_io; - - ppc_md.restart = adir_restart; - ppc_md.power_off = adir_power_off; - ppc_md.halt = adir_halt; - - ppc_md.time_init = todc_time_init; - ppc_md.set_rtc_time = todc_set_rtc_time; - ppc_md.get_rtc_time = todc_get_rtc_time; - ppc_md.nvram_read_val = todc_mc146818_read_val; - ppc_md.nvram_write_val = todc_mc146818_write_val; - ppc_md.calibrate_decr = adir_calibrate_decr; -} |