Working SPD reading in fwstart.img
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
a1efcc79d3
commit
7517048135
8 changed files with 321 additions and 12 deletions
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@ -80,11 +80,11 @@ grub_cs5536_smbus_wait (grub_port_t smbbase)
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{
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grub_uint8_t status;
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status = grub_inb (smbbase + GRUB_CS5536_SMB_REG_STATUS);
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if (status & (1 << 6))
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if (status & GRUB_CS5536_SMB_REG_STATUS_SDAST)
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return GRUB_ERR_NONE;
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if (status & (1 << 5))
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if (status & GRUB_CS5536_SMB_REG_STATUS_BER)
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return grub_error (GRUB_ERR_IO, "SM bus error");
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if (status & (1 << 4))
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if (status & GRUB_CS5536_SMB_REG_STATUS_NACK)
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return grub_error (GRUB_ERR_IO, "NACK received");
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if (grub_get_time_ms () > start + 40)
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return grub_error (GRUB_ERR_IO, "SM stalled");
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@ -30,6 +30,14 @@ kernel_img_LDFLAGS = $(COMMON_LDFLAGS) -static-libgcc -lgcc \
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-Wl,-N,-S,-Ttext,$(LINK_BASE),-Bstatic
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kernel_img_FORMAT = binary
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pkglib_IMAGES += fwstart.img
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fwstart_img_SOURCES = kern/$(target_cpu)/$(target_machine)/fwstart.S
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fwstart_img_CFLAGS = $(COMMON_CFLAGS)
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fwstart_img_ASFLAGS = $(COMMON_ASFLAGS)
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fwstart_img_LDFLAGS = $(COMMON_LDFLAGS) -static-libgcc -lgcc \
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-Wl,-N,-S,-Ttext,0xbfc00000,-Bstatic
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fwstart_img_FORMAT = binary
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# For ata.mod.
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pkglib_MODULES += ata.mod
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ata_mod_SOURCES = disk/ata.c
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@ -19,17 +19,23 @@
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#ifndef GRUB_CS5536_HEADER
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#define GRUB_CS5536_HEADER 1
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#ifndef ASM_FILE
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#include <grub/pci.h>
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#include <grub/err.h>
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#include <grub/smbus.h>
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#endif
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#define GRUB_CS5536_PCIID 0x208f1022
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#define GRUB_CS5536_MSR_MAILBOX_ADDR 0xf4
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#define GRUB_CS5536_MSR_MAILBOX_DATA0 0xf8
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#define GRUB_CS5536_MSR_MAILBOX_DATA1 0xfc
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#define GRUB_CS5536_MSR_SMB_BAR 0x8000000b
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#define GRUB_CS5536_MSR_GPIO_BAR 0x8000000c
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#define GRUB_CS5536_SMB_REG_DATA 0x0
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#define GRUB_CS5536_SMB_REG_STATUS 0x1
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#define GRUB_CS5536_SMB_REG_STATUS_SDAST (1 << 6)
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#define GRUB_CS5536_SMB_REG_STATUS_BER (1 << 5)
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#define GRUB_CS5536_SMB_REG_STATUS_NACK (1 << 4)
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#define GRUB_CS5536_SMB_REG_CTRL1 0x3
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#define GRUB_CS5536_SMB_REG_CTRL1_START 0x01
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#define GRUB_CS5536_SMB_REG_CTRL1_STOP 0x02
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@ -41,11 +47,19 @@
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#define GRUB_CS5536_SMB_REG_CTRL3 0x6
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#define GRUB_CS5536_LBAR_ADDR_MASK 0x000000000000fff8ULL
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#define GRUB_CS5536_LBAR_ADDR_OFF 3
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#define GRUB_CS5536_LBAR_ENABLE 0x0000000100000000ULL
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#define GRUB_SMB_RAM_START_ADDR 0x50
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#define GRUB_SMB_RAM_NUM_MAX 0x08
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/* PMON-compatible LBARs. */
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#define GRUB_CS5536_LBAR_GPIO 0x0b000
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#define GRUB_CS5536_LBAR_SMBUS 0x0b390
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#define GRUB_GPIO_SMBUS_PINS ((1 << 14) | (1 << 15))
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#define GRUB_GPIO_REG_OUT_EN 0x4
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#define GRUB_GPIO_REG_OUT_AUX1 0x10
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#define GRUB_GPIO_REG_IN_EN 0x20
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#define GRUB_GPIO_REG_IN_AUX1 0x34
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#ifndef ASM_FILE
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int grub_cs5536_find (grub_pci_device_t *devp);
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grub_uint64_t grub_cs5536_read_msr (grub_pci_device_t dev, grub_uint32_t addr);
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@ -58,5 +72,6 @@ grub_err_t grub_cs5536_read_spd (grub_port_t smbbase, grub_uint8_t dev,
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grub_err_t grub_cs5536_smbus_wait (grub_port_t smbbase);
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grub_err_t grub_cs5536_init_smbus (grub_pci_device_t dev, grub_uint16_t divisor,
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grub_port_t *smbbase);
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#endif
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#endif
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@ -0,0 +1,27 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2010 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_BOOT_MACHINE_HEADER
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#define GRUB_BOOT_MACHINE_HEADER 1
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#define GRUB_MACHINE_FLASH_START 0xbfc00000
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#define GRUB_MACHINE_FLASH_TLB_REFILL 0xbfc00200
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#define GRUB_MACHINE_FLASH_CACHE_ERROR 0xbfc00300
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#define GRUB_MACHINE_FLASH_OTHER_EXCEPTION 0xbfc00380
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#endif
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@ -19,16 +19,24 @@
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#ifndef GRUB_MACHINE_PCI_H
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#define GRUB_MACHINE_PCI_H 1
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#ifndef ASM_FILE
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#include <grub/types.h>
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#include <grub/cpu/io.h>
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#endif
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#define GRUB_PCI_NUM_BUS 1
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#define GRUB_PCI_NUM_DEVICES 16
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#define GRUB_MACHINE_PCI_IO_BASE 0xbfd00000
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#define GRUB_MACHINE_PCI_CONFSPACE 0xbfe80000
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#ifndef ASM_FILE
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#define GRUB_MACHINE_PCI_CONF_CTRL_REG (*(volatile grub_uint32_t *) 0xbfe00118)
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#define GRUB_MACHINE_PCI_IO_CTRL_REG (*(volatile grub_uint32_t *) 0xbfe00110)
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#else
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#define GRUB_MACHINE_PCI_CONF_CTRL_REG_HI 0xbfe0
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#define GRUB_MACHINE_PCI_CONF_CTRL_REG_LO 0x0118
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#endif
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#define GRUB_MACHINE_PCI_WIN_MASK_SIZE 6
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#define GRUB_MACHINE_PCI_WIN_MASK ((1 << GRUB_MACHINE_PCI_WIN_MASK_SIZE) - 1)
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@ -46,6 +54,7 @@
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#define GRUB_MACHINE_PCI_WIN2_ADDR 0xb4000000
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#define GRUB_MACHINE_PCI_WIN3_ADDR 0xb8000000
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#ifndef ASM_FILE
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static inline grub_uint32_t
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grub_pci_read (grub_pci_address_t addr)
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{
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@ -101,5 +110,6 @@ void
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grub_pci_device_unmap_range (grub_pci_device_t dev __attribute__ ((unused)),
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volatile void *mem,
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grub_size_t size __attribute__ ((unused)));
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#endif
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#endif /* GRUB_MACHINE_PCI_H */
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@ -19,8 +19,10 @@
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#ifndef GRUB_PCI_H
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#define GRUB_PCI_H 1
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#ifndef ASM_FILE
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#include <grub/types.h>
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#include <grub/symbol.h>
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#endif
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#define GRUB_PCI_ADDR_SPACE_MASK 0x01
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#define GRUB_PCI_ADDR_SPACE_MEMORY 0x00
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@ -66,6 +68,7 @@
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#define GRUB_PCI_REG_MIN_GNT 0x3e
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#define GRUB_PCI_REG_MAX_LAT 0x3f
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#ifndef ASM_FILE
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typedef grub_uint32_t grub_pci_id_t;
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#ifdef GRUB_UTIL
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@ -106,5 +109,6 @@ grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (grub_pci_device_t dev,
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int reg);
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void EXPORT_FUNC(grub_pci_iterate) (grub_pci_iteratefunc_t hook);
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#endif
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#endif /* GRUB_PCI_H */
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@ -19,6 +19,9 @@
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#ifndef GRUB_SMBUS_HEADER
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#define GRUB_SMBUS_HEADER 1
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#define GRUB_SMB_RAM_START_ADDR 0x50
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#define GRUB_SMB_RAM_NUM_MAX 0x08
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struct grub_smbus_spd
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{
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grub_uint8_t written_size;
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@ -17,17 +17,107 @@
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*/
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#include <grub/mips/yeeloong/serial.h>
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#include <grub/mips/yeeloong/pci.h>
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#include <grub/mips/yeeloong/boot.h>
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#include <grub/pci.h>
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#include <grub/serial.h>
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#include <grub/cs5536.h>
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.set noreorder
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.set noat
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.set nomacro
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.global start,_start,__start
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start:
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_start:
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__start:
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bal serial_hw_init
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nop
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self:
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b self
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nop
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/* Find CS5536 controller. */
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/* $t4 chooses device in priority encoding. */
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/* Resulting value is kept in GRUB_MACHINE_PCI_CONF_CTRL_REG.
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This way we don't need to sacrifice a register for it. */
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/* We have only one bus (0). Function is 0. */
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lui $t0, GRUB_MACHINE_PCI_CONF_CTRL_REG_HI
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lui $t1, %hi(GRUB_MACHINE_PCI_CONFSPACE)
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lui $t3, %hi(GRUB_CS5536_PCIID)
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addiu $t3, $t3, %lo(GRUB_CS5536_PCIID)
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ori $t4, $zero, 1
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lui $a0, %hi(no_cs5536)
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1:
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andi $t4, $t4, 0xffff
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beql $t4, $zero, fatal
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addiu $a0, $a0, %lo(no_cs5536)
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sw $t4, GRUB_MACHINE_PCI_CONF_CTRL_REG_LO($t0)
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lw $t2, (%lo(GRUB_MACHINE_PCI_CONFSPACE) + GRUB_PCI_REG_PCI_ID) ($t1)
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bnel $t2, $t3, 1b
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sll $t4, $t4, 1
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bal message
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addiu $a0, $a0, %lo(cs5536_found)
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bal printhex
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move $a0, $t4
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/* Initialise SMBus controller. */
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/* Set GPIO LBAR. */
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lui $a0, %hi(GRUB_CS5536_MSR_GPIO_BAR)
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addiu $a0, $a0, %lo(GRUB_CS5536_MSR_GPIO_BAR)
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ori $a1, $zero, GRUB_CS5536_LBAR_GPIO
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/* Set mask to 0xf and enabled bit to 1. */
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bal wrmsr
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ori $a2, $zero, 0xf001
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/* Set SMBUS LBAR. */
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lui $a0, %hi(GRUB_CS5536_MSR_SMB_BAR)
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addiu $a0, $a0, %lo(GRUB_CS5536_MSR_SMB_BAR)
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ori $a1, $zero, GRUB_CS5536_LBAR_SMBUS
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/* Set mask to 0xf and enabled bit to 1. */
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bal wrmsr
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ori $a2, $zero, 0xf001
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lui $a0, %hi(smbus_enabled)
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bal message
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addiu $a0, $a0, %lo(smbus_enabled)
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/* Enable SMBus controller pins. */
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lui $t0, %hi(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_GPIO)
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ori $t1, $zero, GRUB_GPIO_SMBUS_PINS
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sw $t1, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_GPIO + GRUB_GPIO_REG_OUT_EN) ($t0)
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sw $t1, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_GPIO + GRUB_GPIO_REG_OUT_AUX1) ($t0)
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sw $t1, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_GPIO + GRUB_GPIO_REG_IN_EN) ($t0)
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sw $t1, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_GPIO + GRUB_GPIO_REG_IN_AUX1) ($t0)
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lui $t0, %hi(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_SMBUS)
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/* Disable SMB. */
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sb $zero, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL2) ($t0)
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/* Disable interrupts. */
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sb $zero, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1) ($t0)
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/* Set as master. */
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sb $zero, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_ADDR) ($t0)
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/* Launch SMBus controller at slowest speed possible. */
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ori $t1, $zero, 0xff
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sb $t1, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL3) ($t0)
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sb $t1, %lo(GRUB_MACHINE_PCI_IO_BASE + GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL2) ($t0)
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ori $a0, $zero, 0x50
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bal read_spd
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move $a1, $zero
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bal printhex
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move $a0, $v0
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ori $a0, $zero, 0x50
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bal read_spd
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ori $a1, $zero, 2
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bal printhex
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move $a0, $v0
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lui $a0, %hi(not_implemented)
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b fatal
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addiu $a0, $a0, %lo(not_implemented)
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/* Same as similarly named C function but in asm since
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we need it early. */
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@ -70,12 +160,164 @@ serial_hw_init:
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/* In: $a0 = asciiz message. Out: none. Clobbered: $t0, $t1, $a0. */
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message:
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lui $t0, GRUB_MACHINE_SERIAL_PORT_HI
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1:
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1:
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lb $t1, (GRUB_MACHINE_SERIAL_PORT_LO + UART_LSR)($t0)
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andi $t1, $t1, UART_EMPTY_TRANSMITTER
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beq $t1, $zero, 1b
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nop
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lb $t1, 0($a0)
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addiu $a0, $a0, 1
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sb $t1, (GRUB_MACHINE_SERIAL_PORT_LO + UART_TX)($t0)
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bne $t1, $zero, 1b
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sb $t1, (GRUB_MACHINE_SERIAL_PORT_LO + UART_TX)($t0)
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addiu $a0, $a0, 1
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jr $ra
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nop
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/* Print 32-bit hexadecimal on serial.
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In: $a0. Out: None. Clobbered: $a0, $t0, $t1, $t2
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*/
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printhex:
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lui $t0, GRUB_MACHINE_SERIAL_PORT_HI
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ori $t2, $zero, 8
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1:
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lb $t1, (GRUB_MACHINE_SERIAL_PORT_LO + UART_LSR)($t0)
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andi $t1, $t1, UART_EMPTY_TRANSMITTER
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beq $t1, $zero, 1b
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nop
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srl $t1, $a0, 28
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addiu $t1, $t1, -10
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blt $t1, $zero, 2f
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sll $a0, $a0, 4
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addiu $t1, $t1, 'A'-10-'0'
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2: addiu $t1, $t1, '0'+10
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sb $t1, (GRUB_MACHINE_SERIAL_PORT_LO + UART_TX)($t0)
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addiu $t2, $t2, -1
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bne $t2, $zero, 1b
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nop
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jr $ra
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nop
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fatal:
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bal message
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nop
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self:
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b self
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nop
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. = start + GRUB_MACHINE_FLASH_TLB_REFILL - GRUB_MACHINE_FLASH_START
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tlb_refill:
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lui $a0, %hi(unhandled_tlb_refill)
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b fatal
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addiu $a0, $a0, %lo(unhandled_tlb_refill)
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. = start + GRUB_MACHINE_FLASH_CACHE_ERROR - GRUB_MACHINE_FLASH_START
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cache_error:
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lui $a0, %hi(unhandled_cache_error)
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b fatal
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addiu $a0, $a0, %lo(unhandled_cache_error)
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. = start + GRUB_MACHINE_FLASH_OTHER_EXCEPTION - GRUB_MACHINE_FLASH_START
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other_exception:
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lui $a0, %hi(unhandled_exception)
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b fatal
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addiu $a0, $a0, %lo(unhandled_exception)
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/* Write CS5536 MSR.
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In: $a0 address, $a1 lower word, $a2 upper word.
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Out: None
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Clobbered: $t0
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*/
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wrmsr:
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lui $t0, %hi(GRUB_MACHINE_PCI_CONFSPACE)
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sw $a0, (%lo(GRUB_MACHINE_PCI_CONFSPACE) + GRUB_CS5536_MSR_MAILBOX_ADDR) ($t0)
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sw $a1, (%lo(GRUB_MACHINE_PCI_CONFSPACE) + GRUB_CS5536_MSR_MAILBOX_DATA0) ($t0)
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jr $ra
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sw $a2, (%lo(GRUB_MACHINE_PCI_CONFSPACE) + GRUB_CS5536_MSR_MAILBOX_DATA1) ($t0)
|
||||
|
||||
/* Wait for SMBus data or empty transmitter. */
|
||||
/* In: $a0 = exception handler. Out: none. Clobbered: $t0, $t1 */
|
||||
smbus_wait:
|
||||
1:
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_STATUS + GRUB_MACHINE_PCI_IO_BASE)
|
||||
lb $t0, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_STATUS + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
andi $t1, $t0, GRUB_CS5536_SMB_REG_STATUS_SDAST
|
||||
bne $t1, $zero, return
|
||||
nop
|
||||
andi $t1, $t0, (GRUB_CS5536_SMB_REG_STATUS_BER | GRUB_CS5536_SMB_REG_STATUS_NACK)
|
||||
beq $t1, $zero, 1b
|
||||
nop
|
||||
jr $a0
|
||||
nop
|
||||
return:
|
||||
jr $ra
|
||||
nop
|
||||
|
||||
/* Read SPD byte. In: $a0 device, $a1 byte. Out: $v0 read byte (0x100 on failure).
|
||||
Clobbered: $t0, $t1, $t2, $t3, $a0. */
|
||||
read_spd:
|
||||
move $t2, $a0
|
||||
move $t3, $ra
|
||||
lui $a0, %hi(read_spd_fail)
|
||||
addiu $a0, $a0, %hi(read_spd_fail)
|
||||
|
||||
/* Send START. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE)
|
||||
lb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
ori $t1, $t1, GRUB_CS5536_SMB_REG_CTRL1_START
|
||||
bal smbus_wait
|
||||
sb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
/* Send device address. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE)
|
||||
sll $t1, $t2, 1
|
||||
bal smbus_wait
|
||||
sb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
/* Send ACK. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE)
|
||||
lb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
ori $t1, $t1, GRUB_CS5536_SMB_REG_CTRL1_ACK
|
||||
sb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
/* Send byte address. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE)
|
||||
bal smbus_wait
|
||||
sb $a1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
/* Send START. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE)
|
||||
lb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
ori $t1, $t1, GRUB_CS5536_SMB_REG_CTRL1_START
|
||||
bal smbus_wait
|
||||
sb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
/* Send device address. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE)
|
||||
sll $t1, $t2, 1
|
||||
ori $t1, $t1, 1
|
||||
bal smbus_wait
|
||||
sb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
/* Send STOP. */
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE)
|
||||
lb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
ori $t1, $t1, GRUB_CS5536_SMB_REG_CTRL1_STOP
|
||||
bal smbus_wait
|
||||
sb $t1, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_CTRL1 + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
|
||||
lui $t0, %hi(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE)
|
||||
lb $v0, %lo(GRUB_CS5536_LBAR_SMBUS + GRUB_CS5536_SMB_REG_DATA + GRUB_MACHINE_PCI_IO_BASE) ($t0)
|
||||
jr $t3
|
||||
andi $v0, $v0, 0xff
|
||||
read_spd_fail:
|
||||
jr $t3
|
||||
ori $v0, $v0, 0x100
|
||||
|
||||
notification_string: .asciz "GRUB "
|
||||
no_cs5536: .asciz "No CS5536 found.\n\r"
|
||||
cs5536_found: .asciz "CS5536 at "
|
||||
sm_failed: .asciz "SM transaction failed.\n\r"
|
||||
not_implemented: .asciz "Nothing more is implemented. Bye.\n\r"
|
||||
unhandled_tlb_refill: .asciz "Unhandled TLB refill.\n\r"
|
||||
unhandled_cache_error: .asciz "Unhandled cache error.\n\r"
|
||||
unhandled_exception: .asciz "Unhandled exception.\n\r"
|
||||
smbus_enabled: .asciz "SMBus controller enabled.\n\r"
|
||||
|
|
|
|||
Loading…
Reference in a new issue