Author: uwe Date: Fri Nov 26 23:39:40 2010 New Revision: 6125 URL: https://tracker.coreboot.org/trac/coreboot/changeset/6125
Log: AMD SB600: Add TINY_BOOTBLOCK support.
Signed-off-by: Uwe Hermann uwe@hermann-uwe.de Acked-by: Patrick Georgi patrick@georgi-clan.de
Added: trunk/src/southbridge/amd/sb600/bootblock.c trunk/src/southbridge/amd/sb600/sb600_enable_rom.c Modified: trunk/src/southbridge/amd/sb600/Kconfig trunk/src/southbridge/amd/sb600/sb600_early_setup.c
Modified: trunk/src/southbridge/amd/sb600/Kconfig ============================================================================== --- trunk/src/southbridge/amd/sb600/Kconfig Fri Nov 26 23:35:11 2010 (r6124) +++ trunk/src/southbridge/amd/sb600/Kconfig Fri Nov 26 23:39:40 2010 (r6125) @@ -21,6 +21,7 @@ bool select IOAPIC select HAVE_USBDEBUG + select TINY_BOOTBLOCK
config EHCI_BAR hex
Added: trunk/src/southbridge/amd/sb600/bootblock.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/src/southbridge/amd/sb600/bootblock.c Fri Nov 26 23:39:40 2010 (r6125) @@ -0,0 +1,26 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Uwe Hermann uwe@hermann-uwe.de + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "southbridge/amd/sb600/sb600_enable_rom.c" + +static void bootblock_southbridge_init(void) +{ + sb600_enable_rom(); +}
Modified: trunk/src/southbridge/amd/sb600/sb600_early_setup.c ============================================================================== --- trunk/src/southbridge/amd/sb600/sb600_early_setup.c Fri Nov 26 23:35:11 2010 (r6124) +++ trunk/src/southbridge/amd/sb600/sb600_early_setup.c Fri Nov 26 23:39:40 2010 (r6125) @@ -56,11 +56,9 @@ * Serial port 0 * KBC Port * ACPI Micro-controller port -* LPC ROM size * This function does not change port 0x80 decoding. * Console output through any port besides 0x3f8 is unsupported. * If you use FWH ROMs, you have to setup IDSEL. -* NOTE: Call me ASAP, because I will reset LPC ROM size! * Reviewed-by: Carl-Daniel Hailfinger * Reviewed against AMD SB600 Register Reference Manual rev. 3.03, section 3.1 * (LPC ISA Bridge) @@ -97,27 +95,13 @@ reg8 |= (1 << 5) | (1 << 6); pci_write_config8(dev, 0x47, reg8);
- /* SuperIO, LPC ROM */ + /* Super I/O, RTC */ reg8 = pci_read_config8(dev, 0x48); /* Decode ports 0x2e-0x2f, 0x4e-0x4f (SuperI/O configuration) */ reg8 |= (1 << 1) | (1 << 0); - /* Decode variable LPC ROM address ranges 1&2 (see register 0x68-0x6b, 0x6c-0x6f) */ - reg8 |= (1 << 3) | (1 << 4); /* Decode port 0x70-0x73 (RTC) */ - reg8 |= 1 << 6; + reg8 |= (1 << 6); pci_write_config8(dev, 0x48, reg8); - - /* hardware should enable LPC ROM by pin straps */ - /* ROM access at 0xFFF80000/0xFFF00000 - 0xFFFFFFFF */ - /* See detail in BDG-215SB600-03.pdf page 15. */ - /* enable LPC ROM range mirroring start 0x000e(0000) */ - pci_write_config16(dev, 0x68, 0x000e); - /* enable LPC ROM range mirroring end 0x000f(ffff) */ - pci_write_config16(dev, 0x6a, 0x000f); - /* enable LPC ROM range start, 0xfff8(0000): 512KB, 0xfff0(0000): 1MB, 0xffe0(0000): 2MB, 0xffc0(0000): 4MB */ - pci_write_config16(dev, 0x6c, 0xffc0); - /* enable LPC ROM range end at 0xffff(ffff) */ - pci_write_config16(dev, 0x6e, 0xffff); }
/* what is its usage? */ @@ -387,13 +371,12 @@ pci_write_config8(dev, 0x46, 0xC3); pci_write_config8(dev, 0x47, 0xFF);
+ // TODO: This has already been done(?) /* IO/Mem Port Decode Enable, I don't know why CIM disable some ports. * Disable LPC TimeOut counter, enable SuperIO Configuration Port (2e/2f), - * Alternate SuperIO Configuration Port (4e/4f), Wide Generic IO Port (64/65). - * Enable bits for LPC ROM memory address range 1&2 for 1M ROM setting.*/ + * Alternate SuperIO Configuration Port (4e/4f), Wide Generic IO Port (64/65). */ byte = pci_read_config8(dev, 0x48); byte |= (1 << 1) | (1 << 0); /* enable Super IO config port 2e-2h, 4e-4f */ - byte |= (1 << 3) | (1 << 4); /* enable for LPC ROM address range1&2, Enable 512KB rom access at 0xFFF80000 - 0xFFFFFFFF */ byte |= 1 << 6; /* enable for RTC I/O range */ pci_write_config8(dev, 0x48, byte); pci_write_config8(dev, 0x49, 0xFF); @@ -402,12 +385,6 @@ byte |= ((1 << 1) + (1 << 6)); /*0x42, save the configuraion for port 0x80. */ pci_write_config8(dev, 0x4A, byte);
- /* Set LPC ROM size, it has been done in sb600_lpc_init(). - * enable LPC ROM range, 0xfff8: 512KB, 0xfff0: 1MB; - * enable LPC ROM range, 0xfff8: 512KB, 0xfff0: 1MB - * pci_write_config16(dev, 0x68, 0x000e) - * pci_write_config16(dev, 0x6c, 0xfff0);*/ - /* Enable Tpm12_en and Tpm_legacy. I don't know what is its usage and copied from CIM. */ pci_write_config8(dev, 0x7C, 0x05);
Added: trunk/src/southbridge/amd/sb600/sb600_enable_rom.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ trunk/src/southbridge/amd/sb600/sb600_enable_rom.c Fri Nov 26 23:39:40 2010 (r6125) @@ -0,0 +1,65 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include <device/pci_ids.h> + +/* + * Enable 4MB (LPC) ROM access at 0xFFC00000 - 0xFFFFFFFF. + * + * Hardware should enable LPC ROM by pin straps. This function does not + * handle the theoretically possible PCI ROM, FWH, or SPI ROM configurations. + * + * The SB600 power-on default is to map 256K ROM space. + * + * Details: AMD SB600 BIOS Developer's Guide (BDG), page 15. + */ +static void sb600_enable_rom(void) +{ + u8 reg8; + device_t dev; + + dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_ATI, + PCI_DEVICE_ID_ATI_SB600_LPC), 0); + + /* Decode variable LPC ROM address ranges 1 and 2. */ + reg8 = pci_read_config8(dev, 0x48); + reg8 |= (1 << 3) | (1 << 4); + pci_write_config8(dev, 0x48, reg8); + + /* LPC ROM address range 1: */ + /* Enable LPC ROM range mirroring start at 0x000e(0000). */ + pci_write_config16(dev, 0x68, 0x000e); + /* Enable LPC ROM range mirroring end at 0x000f(ffff). */ + pci_write_config16(dev, 0x6a, 0x000f); + + /* LPC ROM address range 2: */ + /* + * Enable LPC ROM range start at: + * 0xfff8(0000): 512KB + * 0xfff0(0000): 1MB + * 0xffe0(0000): 2MB + * 0xffc0(0000): 4MB + */ + pci_write_config16(dev, 0x6c, 0xffc0); /* 4 MB */ + /* Enable LPC ROM range end at 0xffff(ffff). */ + pci_write_config16(dev, 0x6e, 0xffff); +}
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