1 files changed, 360 insertions, 0 deletions
diff --git a/src/southbridge/amd/cs5535/chipsetinit.c b/src/southbridge/amd/cs5535/chipsetinit.c
new file mode 100644
index 0000000000..d31efd3e52
--- /dev/null
+++ b/src/southbridge/amd/cs5535/chipsetinit.c
@@ -0,0 +1,360 @@
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <stdlib.h>
+#include <string.h>
+#include <bitops.h>
+#include "chip.h"
+#include "northbridge/amd/gx2/northbridge.h"
+#include <cpu/amd/gx2def.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/cache.h>
+#include "southbridge/amd/cs5535/cs5535.h"
+// This code uses some cs5536 includes because cs5535 includes are empty:
+#include "southbridge/amd/cs5536/cs5536.h"
+
+/* the structs in this file only set msr.lo. But ... that may not always be true */
+
+struct msrinit {
+	unsigned long msrnum;
+	msr_t msr;
+};
+
+/*  Master Configuration Register for Bus Masters. */
+static struct msrinit SB_MASTER_CONF_TABLE[] = {
+	{ USB1_SB_GLD_MSR_CONF,	{.hi=0,.lo=0x00008f000} },	/*  NOTE: Must be 1st entry in table */
+	{ USB2_SB_GLD_MSR_CONF,	{.hi=0,.lo=0x00008f000} },
+	{ ATA_SB_GLD_MSR_CONF,	{.hi=0,.lo=0x00048f000} },
+	{ AC97_SB_GLD_MSR_CONF,	{.hi=0,.lo=0x00008f000} },
+	{ MDD_SB_GLD_MSR_CONF,	{.hi=0,.lo=0x00000f000} },
+/* GLPCI_SB_GLD_MSR_CONF,	0x0FFFFFFFF*/
+/* GLCP_SB_GLD_MSR_CONF,	0x0FFFFFFFF*/
+/* GLIU_SB_GLD_MSR_CONF,	0x0*/
+	{0,{0,0}}
+};
+
+/*  5535_A3 Clock Gating*/
+static struct msrinit CS5535_CLOCK_GATING_TABLE[] = {
+	{ USB1_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000005} },
+	{ USB2_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000005} },
+	{ GLIU_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000004} },
+	{ GLPCI_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000005} },
+	{ GLCP_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000004} },
+	{ MDD_SB_GLD_MSR_PM,	{.hi=0, .lo=0x050554111} },
+	{ ATA_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000005} },
+	{ AC97_SB_GLD_MSR_PM,	{.hi=0, .lo=0x000000005} },
+	{ 0,			{.hi=0, .lo=0x000000000} }
+};
+
+#ifdef UNUSED_CODE
+struct acpiinit {
+	unsigned short ioreg;
+	unsigned long regdata;
+	unsigned short iolen;
+};
+
+static struct acpiinit acpi_init_table[] = {
+	{ACPI_BASE+0x00, 0x01000000, 4},
+	{ACPI_BASE+0x08, 0, 4},
+	{ACPI_BASE+0x0C, 0, 4},
+	{ACPI_BASE+0x1C, 0, 4},
+	{ACPI_BASE+0x18, 0x0FFFFFFFF, 4},
+	{ACPI_BASE+0x00, 0x0000FFFF, 4},
+
+	{PM_SCLK, 0x000000E00, 4},
+	{PM_SED,  0x000004601, 4},
+	{PM_SIDD, 0x000008C02, 4},
+	{PM_WKD,  0x0000000A0, 4},
+	{PM_WKXD, 0x0000000A0, 4},
+	{0,0,0}
+};
+
+/*****************************************************************************
+ *
+ *	pmChipsetInit
+ *
+ *	Program ACPI LBAR and initialize ACPI registers.
+ *
+ *****************************************************************************/
+static void pmChipsetInit(void)
+{
+	unsigned long val = 0;
+	unsigned short port;
+
+	port =  (PMLogic_BASE + 0x010);
+	val =  0x0E00		; /*  1ms*/
+	outl(val, port);
+
+	/*  PM_WKXD*/
+	/*  Make sure bits[3:0]=0000b to clear the*/
+	/*  saved Sx state*/
+	port =  (PMLogic_BASE + 0x034);
+	val =  0x0A0		; /*  5ms*/
+	outl(val, port);
+
+	/*  PM_WKD*/
+	port =  (PMLogic_BASE + 0x030);
+	outl(val, port);
+
+	/*  PM_SED*/
+	port =  (PMLogic_BASE + 0x014);
+	val =  0x04601		; /*  5ms*/
+	outl(val, port);
+
+	/*  PM_SIDD*/
+	port =  (PMLogic_BASE + 0x020);
+	val =  0x08C02		; /*  10ms*/
+	outl(val, port);
+
+	/* GPIO24 OUT_AUX1 function is the external signal for 5535's
+	 * vsb_working_aux which is de-asserted when 5535 enters Standby (S3 or
+	 * S5) state.  On Hawk, GPIO24 controls all voltage rails except Vmem
+	 * and Vstandby.  This means GX2 will be fully de-powered if this
+	 * control de-asserts in S3/S5.
+	 */
+
+	/* GPIO24 is setup in preChipsetInit for two reasons
+	 * 1. GPIO24 at reset defaults to disabled, since this signal is
+	 *    vsb_work_aux on Hawk it controls the FET's for all voltage
+	 *    rails except Vstanby & Vmem.  BIOS needs to enable GPIO24 as
+	 *    OUT_AUX1 & OUTPUT_EN early so it is driven by 5535.
+	 * 2. Non-PM builds will require GPIO24 enabled for instant-off power
+	 *    button
+	 */
+
+	/* GPIO11 OUT_AUX1 function is the external signal for 5535's
+	 * slp_clk_n which is asserted when 5535 enters Sleep(S1) state.
+	 * On Hawk, GPIO11 is connected to control input of external clock
+	 * generator for 14MHz, PCI, USB & LPC clocks.
+	 * Programming of GPIO11 will be done by VSA PM code.  During VSA
+	 * Init. BIOS writes PM Core Virual Register indicating if S1 Clocks
+	 * should be On or Off. This is based on a Setup item.  We do not want
+	 * to leave GPIO11 enabled because of a Hawk board problem.  With
+	 * GPIO11 enabled in S3, something is back-driving GPIO11 causing it
+	 * to float to 1.6-1.7V.
+	 */
+}
+#endif
+
+struct FLASH_DEVICE {
+	unsigned char fType;		/* Flash type: NOR or NAND */
+	unsigned char fInterface;	/* Flash interface: I/O or Memory */
+	unsigned long fMask;		/* Flash size/mask */
+};
+
+static struct FLASH_DEVICE FlashInitTable[] = {
+	{ FLASH_TYPE_NAND, FLASH_IF_MEM, FLASH_MEM_4K },	/* CS0, or Flash Device 0 */
+	{ FLASH_TYPE_NONE, 0, 0 },	/* CS1, or Flash Device 1 */
+	{ FLASH_TYPE_NONE, 0, 0 },	/* CS2, or Flash Device 2 */
+	{ FLASH_TYPE_NONE, 0, 0 },	/* CS3, or Flash Device 3 */
+};
+
+#define FlashInitTableLen (ARRAY_SIZE(FlashInitTable))
+
+static uint32_t FlashPort[] = {
+	MDD_LBAR_FLSH0,
+	MDD_LBAR_FLSH1,
+	MDD_LBAR_FLSH2,
+	MDD_LBAR_FLSH3
+};
+
+/***************************************************************************
+ *
+ *	ChipsetFlashSetup
+ *
+ *	Flash LBARs need to be setup before VSA init so the PCI BARs have
+ *	correct size info.  Call this routine only if flash needs to be
+ *	configured (don't call it if you want IDE).
+ *
+ **************************************************************************/
+static void ChipsetFlashSetup(void)
+{
+	msr_t msr;
+	int i;
+	int numEnabled = 0;
+
+	printk(BIOS_DEBUG, "ChipsetFlashSetup++\n");
+	for (i = 0; i < FlashInitTableLen; i++) {
+		if (FlashInitTable[i].fType != FLASH_TYPE_NONE) {
+			printk(BIOS_DEBUG, "Enable CS%d\n", i);
+			/* we need to configure the memory/IO mask */
+			msr = rdmsr(FlashPort[i]);
+			msr.hi = 0;	/* start with the "enabled" bit clear */
+			if (FlashInitTable[i].fType == FLASH_TYPE_NAND)
+				msr.hi |= 0x00000002;
+			else
+				msr.hi &= ~0x00000002;
+			if (FlashInitTable[i].fInterface == FLASH_IF_MEM)
+				msr.hi |= 0x00000004;
+			else
+				msr.hi &= ~0x00000004;
+			msr.hi |= FlashInitTable[i].fMask;
+			printk(BIOS_DEBUG, "WRMSR(0x%08X, %08X_%08X)\n", FlashPort[i], msr.hi, msr.lo);
+			wrmsr(FlashPort[i], msr);
+
+			/* now write-enable the device */
+			msr = rdmsr(MDD_NORF_CNTRL);
+			msr.lo |= (1 << i);
+			printk(BIOS_DEBUG, "WRMSR(0x%08X, %08X_%08X)\n", MDD_NORF_CNTRL, msr.hi, msr.lo);
+			wrmsr(MDD_NORF_CNTRL, msr);
+
+			/* update the number enabled */
+			numEnabled++;
+		}
+	}
+
+	/* enable the flash */
+	if (0 != numEnabled) {
+		msr = rdmsr(MDD_PIN_OPT);
+		msr.lo &= ~1; /* PIN_OPT_IDE */
+		printk(BIOS_DEBUG, "WRMSR(0x%08X, %08X_%08X)\n", MDD_PIN_OPT, msr.hi, msr.lo);
+		wrmsr(MDD_PIN_OPT, msr);
+	}
+
+	printk(BIOS_DEBUG, "ChipsetFlashSetup--\n");
+}
+
+
+
+/****************************************************************************
+ *
+ * 	ChipsetGeodeLinkInit
+ *
+ * 	Handle chipset specific GeodeLink settings here.
+ * 	Called from GeodeLink init code.
+ *
+ ****************************************************************************/
+static void
+ChipsetGeodeLinkInit(void)
+{
+	msr_t msr;
+	unsigned long msrnum;
+	unsigned long totalmem;
+
+	/*  SWASIF for A1 DMA */
+	/*  Set all memory to  "just above systop" PCI so DMA will work */
+
+	/*  check A1 */
+	msrnum = MSR_SB_GLCP + 0x17;
+	msr = rdmsr(msrnum);
+	if ((msr.lo&0xff) == 0x11)
+		return;
+
+	totalmem = (sizeram() << 20) - 1; // highest address
+	totalmem >>= 12;
+	totalmem = ~totalmem;
+	totalmem &= 0xfffff;
+	msr.lo = totalmem;
+	msr.hi = 0x20000000;		/*  Port 1 (PCI) */
+	msrnum = MSR_SB_GLIU + 0x20;
+	wrmsr(msrnum, msr);
+}
+
+void
+chipsetinit(void)
+{
+	device_t dev;
+	struct southbridge_amd_cs5535_config *sb;
+	msr_t msr;
+	struct msrinit *csi;
+	int i;
+	unsigned long msrnum;
+
+	dev = dev_find_device(PCI_VENDOR_ID_AMD,
+			PCI_DEVICE_ID_NS_CS5535_ISA, 0);
+
+	if (!dev) {
+		printk(BIOS_ERR, "CS5535 not found.\n");
+		return;
+	}
+
+	sb = (struct southbridge_amd_cs5535_config *)dev->chip_info;
+
+	if (!sb) {
+		printk(BIOS_ERR, "CS5535 configuration not found.\n");
+		return;
+	}
+
+	outb( P80_CHIPSET_INIT, 0x80);
+	ChipsetGeodeLinkInit();
+
+#ifdef UNUSED_CODE
+	/* we hope NEVER to be in coreboot when S3 resumes
+	if (! IsS3Resume()) */
+	{
+		struct acpiinit *aci = acpi_init_table;
+		while (aci->ioreg){
+			if (aci->iolen == 2) {
+				outw(aci->regdata, aci->ioreg);
+				inw(aci->ioreg);
+			} else {
+				outl(aci->regdata, aci->ioreg);
+				inl(aci->ioreg);
+			}
+		}
+
+		pmChipsetInit();
+	}
+#endif
+
+	/*  Setup USB. Need more details. #118.18 */
+	msrnum = MSR_SB_USB1 + 8;
+	msr.lo =  0x00012090;
+	msr.hi = 0;
+	wrmsr(msrnum, msr);
+	msrnum = MSR_SB_USB2 + 8;
+	wrmsr(msrnum, msr);
+
+	/* set hd IRQ */
+	outl	(GPIOL_2_SET, GPIOL_INPUT_ENABLE);
+	outl	(GPIOL_2_SET, GPIOL_IN_AUX1_SELECT);
+
+	/*  Allow IO read and writes during a ATA DMA operation. */
+	/*   This could be done in the HD rom but do it here for easier debugging. */
+
+	msrnum = ATA_SB_GLD_MSR_ERR;
+	msr = rdmsr(msrnum);
+	msr.lo &= ~0x100;
+	wrmsr(msrnum, msr);
+
+	/*  Enable Post Primary IDE. */
+	msrnum = GLPCI_SB_CTRL;
+	msr = rdmsr(msrnum);
+	msr.lo |=  GLPCI_CRTL_PPIDE_SET;
+	wrmsr(msrnum, msr);
+
+	/*  Set up Master Configuration Register */
+	/*  If 5536, use same master config settings as 5535, except for OHCI MSRs */
+	i = 0;
+
+	csi = &SB_MASTER_CONF_TABLE[i];
+	for(; csi->msrnum; csi++){
+		msr.lo = csi->msr.lo;
+		msr.hi = csi->msr.hi;
+		wrmsr(csi->msrnum, msr); // MSR - see table above
+	}
+
+	/*  Flash Setup */
+	printk(BIOS_INFO, "%sDOING ChipsetFlashSetup()!\n",
+			sb->setupflash ? "" : "NOT ");
+
+	if (sb->setupflash)
+		ChipsetFlashSetup();
+
+	/*  Set up Hardware Clock Gating */
+
+	/* if (getnvram(TOKEN_SB_CLK_GATE) != TVALUE_DISABLE) */
+	{
+		csi = CS5535_CLOCK_GATING_TABLE;
+
+		for(; csi->msrnum; csi++){
+			msr.lo = csi->msr.lo;
+			msr.hi = csi->msr.hi;
+			wrmsr(csi->msrnum, msr);	// MSR - see table above
+		}
+	}
+}
+