From 405b6d1cdc0d3fba50b0ba846c811a6ec1939ff3 Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Tue, 30 Apr 2013 17:37:37 +0200 Subject: [PATCH 397/482] * grub-core/kern/mips/loongson/init.c: Support halt for loongson 2E. --- ChangeLog | 4 ++++ grub-core/kern/mips/loongson/init.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/ChangeLog b/ChangeLog index b0ae4ee..6b5feff 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2013-04-30 Vladimir Serbinenko + * grub-core/kern/mips/loongson/init.c: Support halt for loongson 2E. + +2013-04-30 Vladimir Serbinenko + * grub-core/partmap/amiga.c: Fix size of checksummed block. 2013-04-29 Vladimir Serbinenko diff --git a/grub-core/kern/mips/loongson/init.c b/grub-core/kern/mips/loongson/init.c index 52cbfd4..3ed1ded 100644 --- a/grub-core/kern/mips/loongson/init.c +++ b/grub-core/kern/mips/loongson/init.c @@ -221,12 +221,45 @@ grub_machine_fini (void) { } +static int +halt_via (grub_pci_device_t dev, grub_pci_id_t pciid, + void *data __attribute__ ((unused))) +{ + grub_uint16_t pm; + grub_pci_address_t addr; + + if (pciid != 0x30571106) + return 0; + + addr = grub_pci_make_address (dev, 0x40); + pm = grub_pci_read (addr) & ~1; + + if (pm == 0) + { + grub_pci_write (addr, 0x1801); + pm = 0x1800; + } + + addr = grub_pci_make_address (dev, 0x80); + grub_pci_write_byte (addr, 0xff); + + addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND); + grub_pci_write_word (addr, grub_pci_read_word (addr) | GRUB_PCI_COMMAND_IO_ENABLED); + + /* FIXME: This one is derived from qemu. Check on real hardware. */ + grub_outw (0x2000, pm + 4 + GRUB_MACHINE_PCI_IO_BASE); + grub_millisleep (5000); + + return 0; +} + void grub_halt (void) { switch (grub_arch_machine) { case GRUB_ARCH_MACHINE_FULOONG2E: + grub_pci_iterate (halt_via, NULL); break; case GRUB_ARCH_MACHINE_FULOONG2F: { -- 1.8.2.1