diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 2 | ||||
| -rw-r--r-- | arch/x86/mach-visws/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/mach-visws/reboot.c | 55 | ||||
| -rw-r--r-- | arch/x86/mach-visws/setup.c | 30 | ||||
| -rw-r--r-- | arch/x86/mach-visws/setup_visws.c | 233 | ||||
| -rw-r--r-- | arch/x86/mach-visws/traps.c | 4 | ||||
| -rw-r--r-- | arch/x86/mach-visws/visws_apic.c | 3 | ||||
| -rw-r--r-- | arch/x86/pci/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/pci/visws.c | 4 |
9 files changed, 273 insertions, 62 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 3b1b1da78da..5198a085794 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -186,7 +186,7 @@ config X86_HT config X86_BIOS_REBOOT bool - depends on !X86_VISWS && !X86_VOYAGER + depends on !X86_VOYAGER default y config X86_TRAMPOLINE diff --git a/arch/x86/mach-visws/Makefile b/arch/x86/mach-visws/Makefile index 835fd96ad76..35a4c101b26 100644 --- a/arch/x86/mach-visws/Makefile +++ b/arch/x86/mach-visws/Makefile @@ -2,7 +2,7 @@ # Makefile for the linux kernel. # -obj-y := setup.o traps.o reboot.o +obj-y := setup.o setup_visws.o traps.o obj-$(CONFIG_X86_VISWS_APIC) += visws_apic.o obj-$(CONFIG_X86_LOCAL_APIC) += mpparse.o diff --git a/arch/x86/mach-visws/reboot.c b/arch/x86/mach-visws/reboot.c deleted file mode 100644 index 79c26eab882..00000000000 --- a/arch/x86/mach-visws/reboot.c +++ /dev/null @@ -1,55 +0,0 @@ -#include <linux/module.h> -#include <linux/smp.h> -#include <linux/delay.h> - -#include <asm/io.h> -#include "piix4.h" - -void (*pm_power_off)(void); -EXPORT_SYMBOL(pm_power_off); - -void machine_shutdown(void) -{ -#ifdef CONFIG_SMP - smp_send_stop(); -#endif -} - -void machine_emergency_restart(void) -{ - /* - * Visual Workstations restart after this - * register is poked on the PIIX4 - */ - outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT); -} - -void machine_restart(char * __unused) -{ - machine_shutdown(); - machine_emergency_restart(); -} - -void machine_power_off(void) -{ - unsigned short pm_status; -/* extern unsigned int pci_bus0; */ - - while ((pm_status = inw(PMSTS_PORT)) & 0x100) - outw(pm_status, PMSTS_PORT); - - outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT); - - mdelay(10); - -#define PCI_CONF1_ADDRESS(bus, devfn, reg) \ - (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3)) - -/* outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8); */ - outl(PIIX_SPECIAL_STOP, 0xCFC); -} - -void machine_halt(void) -{ -} - diff --git a/arch/x86/mach-visws/setup.c b/arch/x86/mach-visws/setup.c index 2f5e277686b..b8054c3ffce 100644 --- a/arch/x86/mach-visws/setup.c +++ b/arch/x86/mach-visws/setup.c @@ -10,6 +10,14 @@ #include <asm/e820.h> #include <asm/setup.h> +/* + * Any quirks to be performed to initialize timers/irqs/etc? + */ +int (*arch_time_init_quirk)(void); +int (*arch_pre_intr_init_quirk)(void); +int (*arch_intr_init_quirk)(void); +int (*arch_trap_init_quirk)(void); + #ifdef CONFIG_HOTPLUG_CPU #define DEFAULT_SEND_IPI (1) #else @@ -29,6 +37,10 @@ int no_broadcast=DEFAULT_SEND_IPI; **/ void __init pre_intr_init_hook(void) { + if (arch_pre_intr_init_quirk) { + if (arch_pre_intr_init_quirk()) + return; + } init_ISA_irqs(); } @@ -52,6 +64,10 @@ static struct irqaction irq2 = { **/ void __init intr_init_hook(void) { + if (arch_intr_init_quirk) { + if (arch_intr_init_quirk()) + return; + } #ifdef CONFIG_X86_LOCAL_APIC apic_intr_init(); #endif @@ -81,6 +97,10 @@ void __init pre_setup_arch_hook(void) **/ void __init trap_init_hook(void) { + if (arch_trap_init_quirk) { + if (arch_trap_init_quirk()) + return; + } } static struct irqaction irq0 = { @@ -99,6 +119,16 @@ static struct irqaction irq0 = { **/ void __init time_init_hook(void) { + if (arch_time_init_quirk) { + /* + * A nonzero return code does not mean failure, it means + * that the architecture quirk does not want any + * generic (timer) setup to be performed after this: + */ + if (arch_time_init_quirk()) + return; + } + irq0.mask = cpumask_of_cpu(0); setup_irq(0, &irq0); } diff --git a/arch/x86/mach-visws/setup_visws.c b/arch/x86/mach-visws/setup_visws.c new file mode 100644 index 00000000000..659777f7826 --- /dev/null +++ b/arch/x86/mach-visws/setup_visws.c @@ -0,0 +1,233 @@ +/* + * Unmaintained SGI Visual Workstation support. + * Split out from setup.c by davej@suse.de + */ + +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/smp.h> + +#include <asm/arch_hooks.h> +#include <asm/fixmap.h> +#include <asm/reboot.h> +#include <asm/setup.h> +#include <asm/e820.h> +#include <asm/io.h> + +#include <mach_ipi.h> + +#include "cobalt.h" +#include "piix4.h" + +char visws_board_type = -1; +char visws_board_rev = -1; + +static int __init visws_time_init_quirk(void) +{ + printk(KERN_INFO "Starting Cobalt Timer system clock\n"); + + /* Set the countdown value */ + co_cpu_write(CO_CPU_TIMEVAL, CO_TIME_HZ/HZ); + + /* Start the timer */ + co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) | CO_CTRL_TIMERUN); + + /* Enable (unmask) the timer interrupt */ + co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) & ~CO_CTRL_TIMEMASK); + + /* + * Zero return means the generic timer setup code will set up + * the standard vector: + */ + return 0; +} + +static int __init visws_pre_intr_init_quirk(void) +{ + init_VISWS_APIC_irqs(); + + /* + * We dont want ISA irqs to be set up by the generic code: + */ + return 1; +} + +/* Quirk for machine specific memory setup. */ + +#define MB (1024 * 1024) + +unsigned long sgivwfb_mem_phys; +unsigned long sgivwfb_mem_size; +EXPORT_SYMBOL(sgivwfb_mem_phys); +EXPORT_SYMBOL(sgivwfb_mem_size); + +long long mem_size __initdata = 0; + +static char * __init visws_memory_setup_quirk(void) +{ + long long gfx_mem_size = 8 * MB; + + mem_size = boot_params.alt_mem_k; + + if (!mem_size) { + printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n"); + mem_size = 128 * MB; + } + + /* + * this hardcodes the graphics memory to 8 MB + * it really should be sized dynamically (or at least + * set as a boot param) + */ + if (!sgivwfb_mem_size) { + printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n"); + sgivwfb_mem_size = 8 * MB; + } + + /* + * Trim to nearest MB + */ + sgivwfb_mem_size &= ~((1 << 20) - 1); + sgivwfb_mem_phys = mem_size - gfx_mem_size; + + e820_add_region(0, LOWMEMSIZE(), E820_RAM); + e820_add_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM); + e820_add_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED); + + return "PROM"; +} + +static void visws_machine_emergency_restart(void) +{ + /* + * Visual Workstations restart after this + * register is poked on the PIIX4 + */ + outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT); +} + +static void visws_machine_power_off(void) +{ + unsigned short pm_status; +/* extern unsigned int pci_bus0; */ + + while ((pm_status = inw(PMSTS_PORT)) & 0x100) + outw(pm_status, PMSTS_PORT); + + outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT); + + mdelay(10); + +#define PCI_CONF1_ADDRESS(bus, devfn, reg) \ + (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3)) + +/* outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8); */ + outl(PIIX_SPECIAL_STOP, 0xCFC); +} + +extern int visws_trap_init_quirk(void); + +void __init visws_early_detect(void) +{ + int raw; + + visws_board_type = (char)(inb_p(PIIX_GPI_BD_REG) & PIIX_GPI_BD_REG) + >> PIIX_GPI_BD_SHIFT; + + if (visws_board_type < 0) + return; + + /* + * Install special quirks for timer, interrupt and memory setup: + */ + arch_time_init_quirk = visws_time_init_quirk; + arch_pre_intr_init_quirk = visws_pre_intr_init_quirk; + arch_memory_setup_quirk = visws_memory_setup_quirk; + + /* + * Fall back to generic behavior for traps: + */ + arch_intr_init_quirk = NULL; + arch_trap_init_quirk = visws_trap_init_quirk; + + /* + * Install reboot quirks: + */ + pm_power_off = visws_machine_power_off; + machine_ops.emergency_restart = visws_machine_emergency_restart; + + /* + * Do not use broadcast IPIs: + */ + no_broadcast = 0; + + /* + * Get Board rev. + * First, we have to initialize the 307 part to allow us access + * to the GPIO registers. Let's map them at 0x0fc0 which is right + * after the PIIX4 PM section. + */ + outb_p(SIO_DEV_SEL, SIO_INDEX); + outb_p(SIO_GP_DEV, SIO_DATA); /* Talk to GPIO regs. */ + + outb_p(SIO_DEV_MSB, SIO_INDEX); + outb_p(SIO_GP_MSB, SIO_DATA); /* MSB of GPIO base address */ + + outb_p(SIO_DEV_LSB, SIO_INDEX); + outb_p(SIO_GP_LSB, SIO_DATA); /* LSB of GPIO base address */ + + outb_p(SIO_DEV_ENB, SIO_INDEX); + outb_p(1, SIO_DATA); /* Enable GPIO registers. */ + + /* + * Now, we have to map the power management section to write + * a bit which enables access to the GPIO registers. + * What lunatic came up with this shit? + */ + outb_p(SIO_DEV_SEL, SIO_INDEX); + outb_p(SIO_PM_DEV, SIO_DATA); /* Talk to GPIO regs. */ + + outb_p(SIO_DEV_MSB, SIO_INDEX); + outb_p(SIO_PM_MSB, SIO_DATA); /* MSB of PM base address */ + + outb_p(SIO_DEV_LSB, SIO_INDEX); + outb_p(SIO_PM_LSB, SIO_DATA); /* LSB of PM base address */ + + outb_p(SIO_DEV_ENB, SIO_INDEX); + outb_p(1, SIO_DATA); /* Enable PM registers. */ + + /* + * Now, write the PM register which enables the GPIO registers. + */ + outb_p(SIO_PM_FER2, SIO_PM_INDEX); + outb_p(SIO_PM_GP_EN, SIO_PM_DATA); + + /* + * Now, initialize the GPIO registers. + * We want them all to be inputs which is the + * power on default, so let's leave them alone. + * So, let's just read the board rev! + */ + raw = inb_p(SIO_GP_DATA1); + raw &= 0x7f; /* 7 bits of valid board revision ID. */ + + if (visws_board_type == VISWS_320) { + if (raw < 0x6) { + visws_board_rev = 4; + } else if (raw < 0xc) { + visws_board_rev = 5; + } else { + visws_board_rev = 6; + } + } else if (visws_board_type == VISWS_540) { + visws_board_rev = 2; + } else { + visws_board_rev = raw; + } + + printk(KERN_INFO "Silicon Graphics Visual Workstation %s (rev %d) detected\n", + (visws_board_type == VISWS_320 ? "320" : + (visws_board_type == VISWS_540 ? "540" : + "unknown")), visws_board_rev); +} diff --git a/arch/x86/mach-visws/traps.c b/arch/x86/mach-visws/traps.c index dd1f5fa9421..8a160ec147f 100644 --- a/arch/x86/mach-visws/traps.c +++ b/arch/x86/mach-visws/traps.c @@ -62,8 +62,10 @@ static __init void cobalt_init(void) co_apic_read(CO_APIC_ID)); } -void __init trap_init_hook_dontuse(void) +int __init visws_trap_init_quirk(void) { lithium_init(); cobalt_init(); + + return 1; } diff --git a/arch/x86/mach-visws/visws_apic.c b/arch/x86/mach-visws/visws_apic.c index 8b1cd8e01cb..d8b2cfd85d9 100644 --- a/arch/x86/mach-visws/visws_apic.c +++ b/arch/x86/mach-visws/visws_apic.c @@ -25,9 +25,6 @@ #include "cobalt.h" -char visws_board_type = -1; -char visws_board_rev = -1; - static DEFINE_SPINLOCK(cobalt_lock); /* diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile index fa0164d80bb..c03c2094864 100644 --- a/arch/x86/pci/Makefile +++ b/arch/x86/pci/Makefile @@ -11,7 +11,7 @@ pci-y += legacy.o irq.o # Careful: VISWS overrule the pci-y above. The colons are # therefor correct. This needs a proper fix by distangling the code. -#pci-$(CONFIG_X86_VISWS) := visws.o irq.o fixup.o +pci-$(CONFIG_X86_VISWS) += visws.o pci-$(CONFIG_X86_NUMAQ) += numa.o diff --git a/arch/x86/pci/visws.c b/arch/x86/pci/visws.c index 343ccf668d1..2e022210a63 100644 --- a/arch/x86/pci/visws.c +++ b/arch/x86/pci/visws.c @@ -107,7 +107,11 @@ static int __init pci_visws_init(void) static __init int pci_subsys_init(void) { + return -1; + pci_visws_init(); pcibios_init(); + + return 0; } subsys_initcall(pci_subsys_init); |