[LinuxBIOS] r407 - in LinuxBIOSv3: arch/x86 arch/x86/geodelx mainboard/adl/msm800sev southbridge/amd/cs5536 superio/winbond/w83627hf
svn at openbios.org
svn at openbios.org
Fri Jun 29 02:09:24 CEST 2007
Author: rminnich
Date: 2007-06-29 02:09:24 +0200 (Fri, 29 Jun 2007)
New Revision: 407
Added:
LinuxBIOSv3/arch/x86/geodelx/stage1.c
LinuxBIOSv3/mainboard/adl/msm800sev/stage1.c
LinuxBIOSv3/southbridge/amd/cs5536/stage1.c
LinuxBIOSv3/superio/winbond/w83627hf/stage1.c
Removed:
LinuxBIOSv3/arch/x86/geodelx/early_init.c
LinuxBIOSv3/mainboard/adl/msm800sev/early_init.c
LinuxBIOSv3/southbridge/amd/cs5536/cs5536_early_setup.c
LinuxBIOSv3/superio/winbond/w83627hf/w83627hf_early_serial.c
Modified:
LinuxBIOSv3/arch/x86/cachemain.c
LinuxBIOSv3/mainboard/adl/msm800sev/Makefile
LinuxBIOSv3/southbridge/amd/cs5536/cs5536.h
Log:
1. move early_* names to stage1.c
2. rename *_early_init symbols to *_stage1
3. Rename early_init to hardware_stage1
now people can see when things are supposed to happen.
Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
Acked-by: Stefan Reinauer <stepan at coresystems.de>
Modified: LinuxBIOSv3/arch/x86/cachemain.c
===================================================================
--- LinuxBIOSv3/arch/x86/cachemain.c 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/arch/x86/cachemain.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -29,7 +29,7 @@
void uart_init(void);
void die(const char *msg);
int find_file(struct mem_file *archive, char *filename, struct mem_file *result);
-void early_init(void);
+void hardware_stage1(void);
// Is this value correct?
#define DCACHE_RAM_SIZE 0x8000
@@ -82,7 +82,7 @@
// We have cache as ram running and can start executing code in C.
//
- early_init();
+ hardware_stage1();
//
uart_init(); // initialize serial port
Deleted: LinuxBIOSv3/arch/x86/geodelx/early_init.c
===================================================================
--- LinuxBIOSv3/arch/x86/geodelx/early_init.c 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/arch/x86/geodelx/early_init.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -1,71 +0,0 @@
-/*
- * This file is part of the LinuxBIOS project.
- *
- * Copyright (C) 2006 Indrek Kruusa <indrek.kruusa at artecdesign.ee>
- * Copyright (C) 2006 Ronald G. Minnich <rminnich at gmail.com>
- * Copyright (C) 2007 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; 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 <types.h>
-#include <lib.h>
-#include <console.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <string.h>
-#include <msr.h>
-#include <io.h>
-#include <amd_geodelx.h>
-#include <spd.h>
-
-/**
- * geodelx_msr_init Set up Geode LX registers for sane behaviour. Set
- * all low memory (under 1MB) to write back. Do some setup for cache
- * as ram as well.
- */
-void geodelx_msr_init(void)
-{
- struct msr msr;
- /* Setup access to the cache for under 1MB. */
- msr.hi = 0x24fffc02;
- msr.lo = 0x1000A000; /* 0-A0000 write back */
- wrmsr(CPU_RCONF_DEFAULT, msr);
-
- msr.hi = 0x0; /* write back */
- msr.lo = 0x0;
- wrmsr(CPU_RCONF_A0_BF, msr);
- wrmsr(CPU_RCONF_C0_DF, msr);
- wrmsr(CPU_RCONF_E0_FF, msr);
-
- /* Setup access to the cache for under 640K. Note MC not setup yet. */
- msr.hi = 0x20000000;
- msr.lo = 0xfff80;
- wrmsr(MSR_GLIU0 + 0x20, msr);
-
- msr.hi = 0x20000000;
- msr.lo = 0x80fffe0;
- wrmsr(MSR_GLIU0 + 0x21, msr);
-
- msr.hi = 0x20000000;
- msr.lo = 0xfff80;
- wrmsr(MSR_GLIU1 + 0x20, msr);
-
- msr.hi = 0x20000000;
- msr.lo = 0x80fffe0;
- wrmsr(MSR_GLIU1 + 0x21, msr);
-
-}
-
Copied: LinuxBIOSv3/arch/x86/geodelx/stage1.c (from rev 406, LinuxBIOSv3/arch/x86/geodelx/early_init.c)
===================================================================
--- LinuxBIOSv3/arch/x86/geodelx/stage1.c (rev 0)
+++ LinuxBIOSv3/arch/x86/geodelx/stage1.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -0,0 +1,71 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2006 Indrek Kruusa <indrek.kruusa at artecdesign.ee>
+ * Copyright (C) 2006 Ronald G. Minnich <rminnich at gmail.com>
+ * Copyright (C) 2007 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; 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 <types.h>
+#include <lib.h>
+#include <console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <string.h>
+#include <msr.h>
+#include <io.h>
+#include <amd_geodelx.h>
+#include <spd.h>
+
+/**
+ * geodelx_msr_init Set up Geode LX registers for sane behaviour. Set
+ * all low memory (under 1MB) to write back. Do some setup for cache
+ * as ram as well.
+ */
+void geodelx_msr_init(void)
+{
+ struct msr msr;
+ /* Setup access to the cache for under 1MB. */
+ msr.hi = 0x24fffc02;
+ msr.lo = 0x1000A000; /* 0-A0000 write back */
+ wrmsr(CPU_RCONF_DEFAULT, msr);
+
+ msr.hi = 0x0; /* write back */
+ msr.lo = 0x0;
+ wrmsr(CPU_RCONF_A0_BF, msr);
+ wrmsr(CPU_RCONF_C0_DF, msr);
+ wrmsr(CPU_RCONF_E0_FF, msr);
+
+ /* Setup access to the cache for under 640K. Note MC not setup yet. */
+ msr.hi = 0x20000000;
+ msr.lo = 0xfff80;
+ wrmsr(MSR_GLIU0 + 0x20, msr);
+
+ msr.hi = 0x20000000;
+ msr.lo = 0x80fffe0;
+ wrmsr(MSR_GLIU0 + 0x21, msr);
+
+ msr.hi = 0x20000000;
+ msr.lo = 0xfff80;
+ wrmsr(MSR_GLIU1 + 0x20, msr);
+
+ msr.hi = 0x20000000;
+ msr.lo = 0x80fffe0;
+ wrmsr(MSR_GLIU1 + 0x21, msr);
+
+}
+
Modified: LinuxBIOSv3/mainboard/adl/msm800sev/Makefile
===================================================================
--- LinuxBIOSv3/mainboard/adl/msm800sev/Makefile 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/mainboard/adl/msm800sev/Makefile 2007-06-29 00:09:24 UTC (rev 407)
@@ -19,11 +19,11 @@
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-STAGE0_MAINBOARD_OBJ := $(obj)/superio/winbond/w83627hf/w83627hf_early_serial.o \
+STAGE0_MAINBOARD_OBJ := $(obj)/superio/winbond/w83627hf/stage1.o \
$(obj)/device/pnp_raw.o \
- $(obj)/southbridge/amd/cs5536/cs5536_early_setup.o\
- $(obj)/arch/x86/geodelx/early_init.o \
- $(obj)/mainboard/$(MAINBOARDDIR)/early_init.o
+ $(obj)/southbridge/amd/cs5536/stage1.o\
+ $(obj)/arch/x86/geodelx/stage1.o \
+ $(obj)/mainboard/$(MAINBOARDDIR)/stage1.o
$(obj)/linuxbios.vpd:
$(Q)printf " BUILD DUMMY VPD\n"
Deleted: LinuxBIOSv3/mainboard/adl/msm800sev/early_init.c
===================================================================
--- LinuxBIOSv3/mainboard/adl/msm800sev/early_init.c 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/mainboard/adl/msm800sev/early_init.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -1,54 +0,0 @@
-/*
- * This file is part of the LinuxBIOS project.
- *
- * Copyright (C) 2007 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; 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 <types.h>
-#include <lib.h>
-#include <console.h>
-#include <post_code.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <io.h>
-#include <device/pnp.h>
-#include <string.h>
-#include <msr.h>
-#include <io.h>
-#include <amd_geodelx.h>
-#include <southbridge/amd/cs5536/cs5536.h>
-#include <superio/winbond/w83627hf/w83627hf.h>
-
-#define SERIAL_DEV 0x30
-
-int early_init(void)
-{
- void w83627hf_enable_serial(u8 dev, u8 serial, u16 iobase);
- post_code(POST_START_OF_MAIN);
-
- geodelx_msr_init();
-
- cs5536_early_setup();
-
- /* NOTE: must do this AFTER the early_setup!
- * it is counting on some early MSR setup
- * for cs5536
- */
- cs5536_disable_internal_uart();
- w83627hf_enable_serial(0x2e, 0x30, 0x3f8);
- printk(BIOS_DEBUG, "Done %s\n", __FUNCTION__);
-}
Copied: LinuxBIOSv3/mainboard/adl/msm800sev/stage1.c (from rev 406, LinuxBIOSv3/mainboard/adl/msm800sev/early_init.c)
===================================================================
--- LinuxBIOSv3/mainboard/adl/msm800sev/stage1.c (rev 0)
+++ LinuxBIOSv3/mainboard/adl/msm800sev/stage1.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -0,0 +1,54 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2007 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; 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 <types.h>
+#include <lib.h>
+#include <console.h>
+#include <post_code.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <io.h>
+#include <device/pnp.h>
+#include <string.h>
+#include <msr.h>
+#include <io.h>
+#include <amd_geodelx.h>
+#include <southbridge/amd/cs5536/cs5536.h>
+#include <superio/winbond/w83627hf/w83627hf.h>
+
+#define SERIAL_DEV 0x30
+
+int hardware_stage1(void)
+{
+ void w83627hf_enable_serial(u8 dev, u8 serial, u16 iobase);
+ post_code(POST_START_OF_MAIN);
+
+ geodelx_msr_init();
+
+ cs5536_stage1();
+
+ /* NOTE: must do this AFTER the early_setup!
+ * it is counting on some early MSR setup
+ * for cs5536
+ */
+ cs5536_disable_internal_uart();
+ w83627hf_enable_serial(0x2e, 0x30, 0x3f8);
+ printk(BIOS_DEBUG, "Done %s\n", __FUNCTION__);
+}
Modified: LinuxBIOSv3/southbridge/amd/cs5536/cs5536.h
===================================================================
--- LinuxBIOSv3/southbridge/amd/cs5536/cs5536.h 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/southbridge/amd/cs5536/cs5536.h 2007-06-29 00:09:24 UTC (rev 407)
@@ -451,7 +451,7 @@
void cs5536_disable_internal_uart(void);
void cs5536_setup_cis_mode(void);
void cs5536_setup_onchipuart(void);
-void cs5536_early_setup(void);
+void cs5536_stage1(void);
#endif /* SOUTHBRIDGE_AMD_CS5536_CS5536_H */
Deleted: LinuxBIOSv3/southbridge/amd/cs5536/cs5536_early_setup.c
===================================================================
--- LinuxBIOSv3/southbridge/amd/cs5536/cs5536_early_setup.c 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/southbridge/amd/cs5536/cs5536_early_setup.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -1,299 +0,0 @@
-/*
- * This file is part of the LinuxBIOS project.
- *
- * Copyright (C) 2007 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 version 2 as
- * published by the Free Software Foundation.
- *
- * 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 <console.h>
-#include <io.h>
-#include <msr.h>
-#include <amd_geodelx.h>
-#include "cs5536.h"
-
-/*
- * Early chipset initialization for the AMD CS5536 Companion Device.
- *
- * This code is needed for setting up RAM, since we need SMBus working as
- * well as a serial port.
- *
- * This file implements the initialization sequence documented in section 4.2
- * of AMD Geode GX Processor CS5536 Companion Device GoedeROM Porting Guide.
- */
-
-/**
- * Set up GLINK routing for this part.
- *
- * The routing is controlled by an MSR. This appears to be the same on
- * all boards.
- */
-void cs5536_setup_extmsr(void)
-{
- struct msr msr;
-
- /* Forward MSR access to CS5536_GLINK_PORT_NUM to CS5536_DEV_NUM. */
- msr.hi = msr.lo = 0x00000000;
-
-#if CS5536_GLINK_PORT_NUM <= 4
- msr.lo = CS5536_DEV_NUM <<
- (unsigned char)((CS5536_GLINK_PORT_NUM - 1) * 8);
-#else
- msr.hi = CS5536_DEV_NUM <<
- (unsigned char)((CS5536_GLINK_PORT_NUM - 5) * 8);
-#endif
-
- wrmsr(GLPCI_ExtMSR, msr);
-}
-
-/**
- * Setup PCI IDSEL for CS5536. There is a Magic Register that must be
- * written so that the chip appears at the expected place in the PCI tree.
- */
-void cs5536_setup_idsel(void)
-{
- /* Write IDSEL to the write once register at address 0x0000. */
- outl(0x1 << (CS5536_DEV_NUM + 10), 0);
-}
-
-/**
- * Magic Bits for undocumented register. You don't need to see those papers.
- * These are not the bits you're looking for. You can go about your business.
- * Move along, move along.
- */
-void cs5536_usb_swapsif(void)
-{
- struct msr msr;
-
- msr = rdmsr(USB1_SB_GLD_MSR_CAP + 0x5);
-
- /* USB Serial short detect bit. */
- if (msr.hi & 0x10) {
- /* We need to preserve bits 32,33,35 and not clear any BIST
- * error, but clear the SERSHRT error bit.
- */
- msr.hi &= 0xFFFFFFFB;
- wrmsr(USB1_SB_GLD_MSR_CAP + 0x5, msr);
- }
-}
-
-/**
- * Set up I/O bases for SMBus, GPIO, MFGPT, ACPI, and PM.
- *
- * These can be changed by Linux later. We set some initial value so that
- * the resources are there as needed. The values are hardcoded because,
- * this early in the process, fancy allocation can do more harm than good.
- */
-void cs5536_setup_iobase(void)
-{
- struct msr msr;
-
- /* Setup LBAR for SMBus controller. */
- msr.hi = 0x0000f001;
- msr.lo = SMBUS_IO_BASE;
- wrmsr(MDD_LBAR_SMB, msr);
-
- /* Setup LBAR for GPIO. */
- msr.hi = 0x0000f001;
- msr.lo = GPIO_IO_BASE;
- wrmsr(MDD_LBAR_GPIO, msr);
-
- /* Setup LBAR for MFGPT. */
- msr.hi = 0x0000f001;
- msr.lo = MFGPT_IO_BASE;
- wrmsr(MDD_LBAR_MFGPT, msr);
-
- /* Setup LBAR for ACPI. */
- msr.hi = 0x0000f001;
- msr.lo = ACPI_IO_BASE;
- wrmsr(MDD_LBAR_ACPI, msr);
-
- /* Setup LBAR for PM support. */
- msr.hi = 0x0000f001;
- msr.lo = PMS_IO_BASE;
- wrmsr(MDD_LBAR_PMS, msr);
-}
-
-/**
- * Power Button Setup.
- *
- * Setup GPIO24, it is the external signal for CS5536 vsb_work_aux which
- * controls all voltage rails except Vstandby & Vmem. We need to enable,
- * OUT_AUX1 and OUTPUT_ENABLE in this order.
- *
- * If GPIO24 is not enabled then soft-off will not work.
- */
-void cs5536_setup_power_button(void)
-{
- outl(0x40020000, PMS_IO_BASE + 0x40);
- outl(GPIOH_24_SET, GPIO_IO_BASE + GPIOH_OUT_AUX1_SELECT);
- outl(GPIOH_24_SET, GPIO_IO_BASE + GPIOH_OUTPUT_ENABLE);
-}
-
-/**
- * Set the various GPIOs.
- *
- * An unknown question at this point is how general this is to all mainboards.
- * At the same time, many boards seem to follow this particular reference spec.
- */
-void cs5536_setup_smbus_gpio(void)
-{
- u32 val;
-
- /* Setup GPIO pins 14/15 for SDA/SCL. */
- val = GPIOL_15_SET | GPIOL_14_SET;
-
- /* Output Enable */
- outl(val, GPIO_IO_BASE + GPIOL_OUT_AUX1_SELECT);
-
- /* Output AUX1 */
- outl(val, GPIO_IO_BASE + GPIOL_OUTPUT_ENABLE);
-
- /* Input Enable */
- outl(val, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
-
- /* Input AUX1 */
- outl(val, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
-}
-
-/**
- * Disable the internal UART.
- *
- * Different boards have different UARTs for COM1.
- */
-void cs5536_disable_internal_uart(void)
-{
- struct msr msr;
-
- /* The UARTs default to enabled.
- * Disable and reset them and configure them later (SIO init).
- */
- msr = rdmsr(MDD_UART1_CONF);
- msr.lo = 1; // reset
- wrmsr(MDD_UART1_CONF, msr);
- msr.lo = 0; // disabled
- wrmsr(MDD_UART1_CONF, msr);
-
- msr = rdmsr(MDD_UART2_CONF);
- msr.lo = 1; // reset
- wrmsr(MDD_UART2_CONF, msr);
- msr.lo = 0; // disabled
- wrmsr(MDD_UART2_CONF, msr);
-}
-
-/**
- * Set up the CS5536 CIS interface to CPU interface to match modes.
- *
- * The CIS is related to the interrupt system. It is important to match
- * the southbridge and the CPU chips. At the same time, they always seem
- * to use mode B.
- */
-void cs5536_setup_cis_mode(void)
-{
- struct msr msr;
-
- /* Setup CPU interface serial to mode B to match CPU. */
- msr = rdmsr(GLPCI_SB_CTRL);
- msr.lo &= ~0x18;
- msr.lo |= 0x10;
- wrmsr(GLPCI_SB_CTRL, msr);
-}
-
-/**
- * Enable the on chip UART.
- *
- * See page 412 of the AMD Geode CS5536 Companion Device data book.
- */
-void cs5536_setup_onchipuart(void)
-{
- struct msr msr;
-
- /* Setup early for polling only mode.
- * 1. Eanble GPIO 8 to OUT_AUX1, 9 to IN_AUX1.
- * GPIO LBAR + 0x04, LBAR + 0x10, LBAR + 0x20, LBAR + 34
- * 2. Enable UART I/O space in MDD.
- * MSR 0x51400014 bit 18:16
- * 3. Enable UART controller.
- * MSR 0x5140003A bit 0, 1
- */
-
- /* GPIO8 - UART1_TX */
- /* Set: Output Enable (0x4) */
- outl(GPIOL_8_SET, GPIO_IO_BASE + GPIOL_OUTPUT_ENABLE);
- /* Set: OUTAUX1 Select (0x10) */
- outl(GPIOL_8_SET, GPIO_IO_BASE + GPIOL_OUT_AUX1_SELECT);
-
- /* GPIO9 - UART1_RX */
- /* Set: Input Enable (0x20) */
- outl(GPIOL_9_SET, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
- /* Set: INAUX1 Select (0x34) */
- outl(GPIOL_9_SET, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
-
- /* Set address to 0x3F8. */
- msr = rdmsr(MDD_LEG_IO);
- msr.lo |= 0x7 << 16;
- wrmsr(MDD_LEG_IO, msr);
-
- /* Bit 1 = DEVEN (device enable)
- * Bit 4 = EN_BANKS (allow access to the upper banks)
- */
- msr.lo = (1 << 4) | (1 << 1);
- msr.hi = 0;
-
- /* Enable COM1. */
- wrmsr(MDD_UART1_CONF, msr);
-}
-
-/**
- * Board setup.
- *
- * Known to work on the AMD Norwich and DIGITIAL-LOGIC boards.
- *
- * The extmsr and cis_mode are common for sure. The RSTPLL check is mandatory.
- * IDSEL of course is required, so the chip appears in PCI config space,
- * and the swapsif covers a necessary chip fix.
- *
- * Finally, the iobase is needed for DRAM, the GPIOs are likely common to all
- * boards, and the power button seems to be the same on all. At the same time,
- * we may need to move GPIO and power button out as developments demand.
- *
- * Note we do NOT do any UART setup here -- this is done later by the
- * mainboard setup, since UART usage is not universal.
- *
- * See also a comment from Marc Jones:
- * http://www.linuxbios.org/pipermail/linuxbios/2007-June/021958.html
- */
-void cs5536_early_setup(void)
-{
- struct msr msr;
-
- /* Note: you can't do prints in here in most cases, and we don't want
- * to hang on serial, so they are commented out.
- */
- cs5536_setup_extmsr();
- cs5536_setup_cis_mode();
-
- msr = rdmsr(GLCP_SYS_RSTPLL);
- if (msr.lo & (0x3f << 26)) {
- /* PLL is already set and we are reboot from PLL reset. */
- return;
- }
-
- cs5536_setup_idsel();
- cs5536_usb_swapsif();
- cs5536_setup_iobase();
- cs5536_setup_smbus_gpio();
- /* cs5536_enable_smbus(); -- Leave this out for now. */
- cs5536_setup_power_button();
-}
Copied: LinuxBIOSv3/southbridge/amd/cs5536/stage1.c (from rev 405, LinuxBIOSv3/southbridge/amd/cs5536/cs5536_early_setup.c)
===================================================================
--- LinuxBIOSv3/southbridge/amd/cs5536/stage1.c (rev 0)
+++ LinuxBIOSv3/southbridge/amd/cs5536/stage1.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -0,0 +1,299 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright (C) 2007 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 version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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 <console.h>
+#include <io.h>
+#include <msr.h>
+#include <amd_geodelx.h>
+#include "cs5536.h"
+
+/*
+ * Early chipset initialization for the AMD CS5536 Companion Device.
+ *
+ * This code is needed for setting up RAM, since we need SMBus working as
+ * well as a serial port.
+ *
+ * This file implements the initialization sequence documented in section 4.2
+ * of AMD Geode GX Processor CS5536 Companion Device GoedeROM Porting Guide.
+ */
+
+/**
+ * Set up GLINK routing for this part.
+ *
+ * The routing is controlled by an MSR. This appears to be the same on
+ * all boards.
+ */
+void cs5536_setup_extmsr(void)
+{
+ struct msr msr;
+
+ /* Forward MSR access to CS5536_GLINK_PORT_NUM to CS5536_DEV_NUM. */
+ msr.hi = msr.lo = 0x00000000;
+
+#if CS5536_GLINK_PORT_NUM <= 4
+ msr.lo = CS5536_DEV_NUM <<
+ (unsigned char)((CS5536_GLINK_PORT_NUM - 1) * 8);
+#else
+ msr.hi = CS5536_DEV_NUM <<
+ (unsigned char)((CS5536_GLINK_PORT_NUM - 5) * 8);
+#endif
+
+ wrmsr(GLPCI_ExtMSR, msr);
+}
+
+/**
+ * Setup PCI IDSEL for CS5536. There is a Magic Register that must be
+ * written so that the chip appears at the expected place in the PCI tree.
+ */
+void cs5536_setup_idsel(void)
+{
+ /* Write IDSEL to the write once register at address 0x0000. */
+ outl(0x1 << (CS5536_DEV_NUM + 10), 0);
+}
+
+/**
+ * Magic Bits for undocumented register. You don't need to see those papers.
+ * These are not the bits you're looking for. You can go about your business.
+ * Move along, move along.
+ */
+void cs5536_usb_swapsif(void)
+{
+ struct msr msr;
+
+ msr = rdmsr(USB1_SB_GLD_MSR_CAP + 0x5);
+
+ /* USB Serial short detect bit. */
+ if (msr.hi & 0x10) {
+ /* We need to preserve bits 32,33,35 and not clear any BIST
+ * error, but clear the SERSHRT error bit.
+ */
+ msr.hi &= 0xFFFFFFFB;
+ wrmsr(USB1_SB_GLD_MSR_CAP + 0x5, msr);
+ }
+}
+
+/**
+ * Set up I/O bases for SMBus, GPIO, MFGPT, ACPI, and PM.
+ *
+ * These can be changed by Linux later. We set some initial value so that
+ * the resources are there as needed. The values are hardcoded because,
+ * this early in the process, fancy allocation can do more harm than good.
+ */
+void cs5536_setup_iobase(void)
+{
+ struct msr msr;
+
+ /* Setup LBAR for SMBus controller. */
+ msr.hi = 0x0000f001;
+ msr.lo = SMBUS_IO_BASE;
+ wrmsr(MDD_LBAR_SMB, msr);
+
+ /* Setup LBAR for GPIO. */
+ msr.hi = 0x0000f001;
+ msr.lo = GPIO_IO_BASE;
+ wrmsr(MDD_LBAR_GPIO, msr);
+
+ /* Setup LBAR for MFGPT. */
+ msr.hi = 0x0000f001;
+ msr.lo = MFGPT_IO_BASE;
+ wrmsr(MDD_LBAR_MFGPT, msr);
+
+ /* Setup LBAR for ACPI. */
+ msr.hi = 0x0000f001;
+ msr.lo = ACPI_IO_BASE;
+ wrmsr(MDD_LBAR_ACPI, msr);
+
+ /* Setup LBAR for PM support. */
+ msr.hi = 0x0000f001;
+ msr.lo = PMS_IO_BASE;
+ wrmsr(MDD_LBAR_PMS, msr);
+}
+
+/**
+ * Power Button Setup.
+ *
+ * Setup GPIO24, it is the external signal for CS5536 vsb_work_aux which
+ * controls all voltage rails except Vstandby & Vmem. We need to enable,
+ * OUT_AUX1 and OUTPUT_ENABLE in this order.
+ *
+ * If GPIO24 is not enabled then soft-off will not work.
+ */
+void cs5536_setup_power_button(void)
+{
+ outl(0x40020000, PMS_IO_BASE + 0x40);
+ outl(GPIOH_24_SET, GPIO_IO_BASE + GPIOH_OUT_AUX1_SELECT);
+ outl(GPIOH_24_SET, GPIO_IO_BASE + GPIOH_OUTPUT_ENABLE);
+}
+
+/**
+ * Set the various GPIOs.
+ *
+ * An unknown question at this point is how general this is to all mainboards.
+ * At the same time, many boards seem to follow this particular reference spec.
+ */
+void cs5536_setup_smbus_gpio(void)
+{
+ u32 val;
+
+ /* Setup GPIO pins 14/15 for SDA/SCL. */
+ val = GPIOL_15_SET | GPIOL_14_SET;
+
+ /* Output Enable */
+ outl(val, GPIO_IO_BASE + GPIOL_OUT_AUX1_SELECT);
+
+ /* Output AUX1 */
+ outl(val, GPIO_IO_BASE + GPIOL_OUTPUT_ENABLE);
+
+ /* Input Enable */
+ outl(val, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
+
+ /* Input AUX1 */
+ outl(val, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
+}
+
+/**
+ * Disable the internal UART.
+ *
+ * Different boards have different UARTs for COM1.
+ */
+void cs5536_disable_internal_uart(void)
+{
+ struct msr msr;
+
+ /* The UARTs default to enabled.
+ * Disable and reset them and configure them later (SIO init).
+ */
+ msr = rdmsr(MDD_UART1_CONF);
+ msr.lo = 1; // reset
+ wrmsr(MDD_UART1_CONF, msr);
+ msr.lo = 0; // disabled
+ wrmsr(MDD_UART1_CONF, msr);
+
+ msr = rdmsr(MDD_UART2_CONF);
+ msr.lo = 1; // reset
+ wrmsr(MDD_UART2_CONF, msr);
+ msr.lo = 0; // disabled
+ wrmsr(MDD_UART2_CONF, msr);
+}
+
+/**
+ * Set up the CS5536 CIS interface to CPU interface to match modes.
+ *
+ * The CIS is related to the interrupt system. It is important to match
+ * the southbridge and the CPU chips. At the same time, they always seem
+ * to use mode B.
+ */
+void cs5536_setup_cis_mode(void)
+{
+ struct msr msr;
+
+ /* Setup CPU interface serial to mode B to match CPU. */
+ msr = rdmsr(GLPCI_SB_CTRL);
+ msr.lo &= ~0x18;
+ msr.lo |= 0x10;
+ wrmsr(GLPCI_SB_CTRL, msr);
+}
+
+/**
+ * Enable the on chip UART.
+ *
+ * See page 412 of the AMD Geode CS5536 Companion Device data book.
+ */
+void cs5536_setup_onchipuart(void)
+{
+ struct msr msr;
+
+ /* Setup early for polling only mode.
+ * 1. Eanble GPIO 8 to OUT_AUX1, 9 to IN_AUX1.
+ * GPIO LBAR + 0x04, LBAR + 0x10, LBAR + 0x20, LBAR + 34
+ * 2. Enable UART I/O space in MDD.
+ * MSR 0x51400014 bit 18:16
+ * 3. Enable UART controller.
+ * MSR 0x5140003A bit 0, 1
+ */
+
+ /* GPIO8 - UART1_TX */
+ /* Set: Output Enable (0x4) */
+ outl(GPIOL_8_SET, GPIO_IO_BASE + GPIOL_OUTPUT_ENABLE);
+ /* Set: OUTAUX1 Select (0x10) */
+ outl(GPIOL_8_SET, GPIO_IO_BASE + GPIOL_OUT_AUX1_SELECT);
+
+ /* GPIO9 - UART1_RX */
+ /* Set: Input Enable (0x20) */
+ outl(GPIOL_9_SET, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
+ /* Set: INAUX1 Select (0x34) */
+ outl(GPIOL_9_SET, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
+
+ /* Set address to 0x3F8. */
+ msr = rdmsr(MDD_LEG_IO);
+ msr.lo |= 0x7 << 16;
+ wrmsr(MDD_LEG_IO, msr);
+
+ /* Bit 1 = DEVEN (device enable)
+ * Bit 4 = EN_BANKS (allow access to the upper banks)
+ */
+ msr.lo = (1 << 4) | (1 << 1);
+ msr.hi = 0;
+
+ /* Enable COM1. */
+ wrmsr(MDD_UART1_CONF, msr);
+}
+
+/**
+ * Board setup.
+ *
+ * Known to work on the AMD Norwich and DIGITIAL-LOGIC boards.
+ *
+ * The extmsr and cis_mode are common for sure. The RSTPLL check is mandatory.
+ * IDSEL of course is required, so the chip appears in PCI config space,
+ * and the swapsif covers a necessary chip fix.
+ *
+ * Finally, the iobase is needed for DRAM, the GPIOs are likely common to all
+ * boards, and the power button seems to be the same on all. At the same time,
+ * we may need to move GPIO and power button out as developments demand.
+ *
+ * Note we do NOT do any UART setup here -- this is done later by the
+ * mainboard setup, since UART usage is not universal.
+ *
+ * See also a comment from Marc Jones:
+ * http://www.linuxbios.org/pipermail/linuxbios/2007-June/021958.html
+ */
+void cs5536_stage1(void)
+{
+ struct msr msr;
+
+ /* Note: you can't do prints in here in most cases, and we don't want
+ * to hang on serial, so they are commented out.
+ */
+ cs5536_setup_extmsr();
+ cs5536_setup_cis_mode();
+
+ msr = rdmsr(GLCP_SYS_RSTPLL);
+ if (msr.lo & (0x3f << 26)) {
+ /* PLL is already set and we are reboot from PLL reset. */
+ return;
+ }
+
+ cs5536_setup_idsel();
+ cs5536_usb_swapsif();
+ cs5536_setup_iobase();
+ cs5536_setup_smbus_gpio();
+ /* cs5536_enable_smbus(); -- Leave this out for now. */
+ cs5536_setup_power_button();
+}
Copied: LinuxBIOSv3/superio/winbond/w83627hf/stage1.c (from rev 405, LinuxBIOSv3/superio/winbond/w83627hf/w83627hf_early_serial.c)
===================================================================
--- LinuxBIOSv3/superio/winbond/w83627hf/stage1.c (rev 0)
+++ LinuxBIOSv3/superio/winbond/w83627hf/stage1.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -0,0 +1,33 @@
+/*
+ * This file is part of the LinuxBIOS project.
+ *
+ * Copyright 2007 Ronald G. Minnich <rminnich at gmail.com>
+ *
+ * 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 <io.h>
+#include <device/pnp.h>
+#include "w83627hf.h"
+
+void w83627hf_enable_serial(u8 dev, u8 serial, u16 iobase)
+{
+ rawpnp_enter_ext_func_mode(dev);
+ rawpnp_set_logical_device(dev,serial);
+ rawpnp_set_enable(dev, 0);
+ rawpnp_set_iobase(dev, PNP_IDX_IO0, iobase);
+ rawpnp_set_enable(dev, 1);
+ rawpnp_exit_ext_func_mode(dev);
+}
Deleted: LinuxBIOSv3/superio/winbond/w83627hf/w83627hf_early_serial.c
===================================================================
--- LinuxBIOSv3/superio/winbond/w83627hf/w83627hf_early_serial.c 2007-06-28 23:59:40 UTC (rev 406)
+++ LinuxBIOSv3/superio/winbond/w83627hf/w83627hf_early_serial.c 2007-06-29 00:09:24 UTC (rev 407)
@@ -1,33 +0,0 @@
-/*
- * This file is part of the LinuxBIOS project.
- *
- * Copyright 2007 Ronald G. Minnich <rminnich at gmail.com>
- *
- * 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 <io.h>
-#include <device/pnp.h>
-#include "w83627hf.h"
-
-void w83627hf_enable_serial(u8 dev, u8 serial, u16 iobase)
-{
- rawpnp_enter_ext_func_mode(dev);
- rawpnp_set_logical_device(dev,serial);
- rawpnp_set_enable(dev, 0);
- rawpnp_set_iobase(dev, PNP_IDX_IO0, iobase);
- rawpnp_set_enable(dev, 1);
- rawpnp_exit_ext_func_mode(dev);
-}
More information about the coreboot
mailing list