static void enable_clock_gating(pci_dev_t dev)
{
u32 reg32;
u16 reg16;
setbits_le32(RCB_REG(0x2234), 0xf);
reg16 = x86_pci_read_config16(dev, GEN_PMCON_1);
reg16 |= (1 << 2) | (1 << 11);
x86_pci_write_config16(dev, GEN_PMCON_1, reg16);
pch_iobp_update(0xEB007F07, ~0UL, (1 << 31));
pch_iobp_update(0xEB004000, ~0UL, (1 << 7));
pch_iobp_update(0xEC007F07, ~0UL, (1 << 31));
pch_iobp_update(0xEC004000, ~0UL, (1 << 7));
reg32 = readl(RCB_REG(CG));
reg32 |= (1 << 31);
reg32 |= (1 << 29) | (1 << 28);
reg32 |= (1 << 27) | (1 << 26) | (1 << 25) | (1 << 24);
reg32 |= (1 << 16);
reg32 |= (1 << 17);
reg32 |= (1 << 18);
reg32 |= (1 << 22);
reg32 |= (1 << 23);
reg32 &= ~(1 << 20);
reg32 |= (1 << 19);
reg32 |= (1 << 0);
reg32 |= (0xf << 1);
writel(reg32, RCB_REG(CG));
setbits_le32(RCB_REG(0x38c0), 0x7);
setbits_le32(RCB_REG(0x36d4), 0x6680c004);
setbits_le32(RCB_REG(0x3564), 0x3);
}
static void pch_misc_init(struct udevice *dev)
{
/* Setup SLP signal assertion, SLP_S4=4s, SLP_S3=50ms */
dm_pci_clrset_config8(dev, GEN_PMCON_3, 3 << 4 | 1 << 10,
1 << 3 | 1 << 11 | 1 << 12);
/* Prepare sleep mode */
clrsetio_32(ACPI_BASE_ADDRESS + PM1_CNT, SLP_TYP, SCI_EN);
/* Setup NMI on errors, disable SERR */
clrsetio_8(0x61, 0xf0, 1 << 2);
/* Disable NMI sources */
setio_8(0x70, 1 << 7);
/* Indicate DRAM init done for MRC */
dm_pci_clrset_config8(dev, GEN_PMCON_2, 0, 1 << 7);
/* Clear status bits to prevent unexpected wake */
setbits_le32(RCB_REG(0x3310), 0x0000002f);
clrsetbits_le32(RCB_REG(0x3f02), 0x0000000f, 0);
/* Enable PCIe Relaxed Order */
setbits_le32(RCB_REG(0x2314), 1 << 31 | 1 << 7);
setbits_le32(RCB_REG(0x1114), 1 << 15 | 1 << 14);
/* Setup SERIRQ, enable continuous mode */
dm_pci_clrset_config8(dev, SERIRQ_CNTL, 0, 1 << 7 | 1 << 6);
};
static int bd82x6x_lpc_early_init(struct udevice *dev)
{
/* Setting up Southbridge. In the northbridge code. */
debug("Setting up static southbridge registers\n");
dm_pci_write_config32(dev->parent, PCH_RCBA_BASE, DEFAULT_RCBA | 1);
dm_pci_write_config32(dev->parent, PMBASE, DEFAULT_PMBASE | 1);
/* Enable ACPI BAR */
dm_pci_write_config8(dev->parent, ACPI_CNTL, 0x80);
debug("Disabling watchdog reboot\n");
setbits_le32(RCB_REG(GCS), 1 >> 5); /* No reset */
outw(1 << 11, DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */
dm_pci_write_config32(dev->parent, GPIO_BASE, DEFAULT_GPIOBASE | 1);
dm_pci_write_config32(dev->parent, GPIO_CNTL, 0x10);
return 0;
}
void lpc_enable(pci_dev_t dev)
{
/* Enable PCH Display Port */
writew(0x0010, RCB_REG(DISPBDF));
setbits_le32(RCB_REG(FD2), PCH_ENABLE_DBDF);
}
static void enable_hpet(void)
{
/* Move HPET to default address 0xfed00000 and enable it */
clrsetbits_le32(RCB_REG(HPTC), 3 << 0, 1 << 7);
}
/* PantherPoint PCH Power Management init */
static void ppt_pm_init(pci_dev_t dev)
{
debug("PantherPoint PM init\n");
pci_write_config8(dev, 0xa9, 0x47);
setbits_le32(RCB_REG(0x2238), 1 << 0);
setbits_le32(RCB_REG(0x228c), 1 << 0);
setbits_le16(RCB_REG(0x1100), (1 << 13) | (1 << 14));
setbits_le16(RCB_REG(0x0900), 1 << 14);
writel(0xc03b8400, RCB_REG(0x2304));
setbits_le32(RCB_REG(0x2314), (1 << 5) | (1 << 18));
setbits_le32(RCB_REG(0x2320), (1 << 15) | (1 << 1));
clrsetbits_le32(RCB_REG(0x3314), 0x1f, 0xf);
writel(0x054f0000, RCB_REG(0x3318));
writel(0x04000000, RCB_REG(0x3324));
setbits_le32(RCB_REG(0x3340), 0xfffff);
setbits_le32(RCB_REG(0x3344), (1 << 1) | (1 << 0));
writel(0x0001c000, RCB_REG(0x3360));
writel(0x00061100, RCB_REG(0x3368));
writel(0x7f8fdfff, RCB_REG(0x3378));
writel(0x000003fd, RCB_REG(0x337c));
writel(0x00001000, RCB_REG(0x3388));
writel(0x0001c000, RCB_REG(0x3390));
writel(0x00000800, RCB_REG(0x33a0));
writel(0x00001000, RCB_REG(0x33b0));
writel(0x00093900, RCB_REG(0x33c0));
writel(0x24653002, RCB_REG(0x33cc));
writel(0x067388fe, RCB_REG(0x33d0));
clrsetbits_le32(RCB_REG(0x33d4), 0x0fff0fff, 0x00670060);
writel(0x01010000, RCB_REG(0x3a28));
writel(0x01010404, RCB_REG(0x3a2c));
writel(0x01040000, RCB_REG(0x3a80));
clrsetbits_le32(RCB_REG(0x3a84), 0x0000ffff, 0x00001001);
/* SATA 2/3 disabled */
setbits_le32(RCB_REG(0x3a84), 1 << 24);
/* SATA 4/5 disabled */
setbits_le32(RCB_REG(0x3a88), 1 << 0);
writel(0x00000001, RCB_REG(0x3a6c));
clrsetbits_le32(RCB_REG(0x2344), 0xff0000ff, 0xff00000c);
clrsetbits_le32(RCB_REG(0x80c), 0xff << 20, 0x11 << 20);
setbits_le32(RCB_REG(0x33a4), (1 << 0));
writel(0, RCB_REG(0x33c8));
setbits_le32(RCB_REG(0x21b0), 0xf);
}
static int pch_power_options(const void *blob, int node, pci_dev_t dev)
{
u8 reg8;
u16 reg16, pmbase;
u32 reg32;
const char *state;
int pwr_on;
int nmi_option;
int ret;
/*
* Which state do we want to goto after g3 (power restored)?
* 0 == S0 Full On
* 1 == S5 Soft Off
*
* If the option is not existent (Laptops), use Kconfig setting.
* TODO([email protected]): Make this configurable
*/
pwr_on = MAINBOARD_POWER_ON;
reg16 = pci_read_config16(dev, GEN_PMCON_3);
reg16 &= 0xfffe;
switch (pwr_on) {
case MAINBOARD_POWER_OFF:
reg16 |= 1;
state = "off";
break;
case MAINBOARD_POWER_ON:
reg16 &= ~1;
state = "on";
break;
case MAINBOARD_POWER_KEEP:
reg16 &= ~1;
state = "state keep";
break;
default:
state = "undefined";
}
reg16 &= ~(3 << 4); /* SLP_S4# Assertion Stretch 4s */
reg16 |= (1 << 3); /* SLP_S4# Assertion Stretch Enable */
reg16 &= ~(1 << 10);
reg16 |= (1 << 11); /* SLP_S3# Min Assertion Width 50ms */
reg16 |= (1 << 12); /* Disable SLP stretch after SUS well */
pci_write_config16(dev, GEN_PMCON_3, reg16);
debug("Set power %s after power failure.\n", state);
/* Set up NMI on errors. */
reg8 = inb(0x61);
reg8 &= 0x0f; /* Higher Nibble must be 0 */
reg8 &= ~(1 << 3); /* IOCHK# NMI Enable */
reg8 |= (1 << 2); /* PCI SERR# Disable for now */
outb(reg8, 0x61);
reg8 = inb(0x70);
/* TODO([email protected]): Make this configurable */
nmi_option = NMI_OFF;
if (nmi_option) {
debug("NMI sources enabled.\n");
reg8 &= ~(1 << 7); /* Set NMI. */
} else {
debug("NMI sources disabled.\n");
/* Can't mask NMI from PCI-E and NMI_NOW */
reg8 |= (1 << 7);
}
outb(reg8, 0x70);
/* Enable CPU_SLP# and Intel Speedstep, set SMI# rate down */
reg16 = pci_read_config16(dev, GEN_PMCON_1);
reg16 &= ~(3 << 0); /* SMI# rate 1 minute */
reg16 &= ~(1 << 10); /* Disable BIOS_PCI_EXP_EN for native PME */
#if DEBUG_PERIODIC_SMIS
/* Set DEBUG_PERIODIC_SMIS in pch.h to debug using periodic SMIs */
reg16 |= (3 << 0); /* Periodic SMI every 8s */
#endif
pci_write_config16(dev, GEN_PMCON_1, reg16);
/* Set the board's GPI routing. */
ret = pch_gpi_routing(blob, node, dev);
if (ret)
return ret;
pmbase = pci_read_config16(dev, 0x40) & 0xfffe;
writel(pmbase + GPE0_EN, fdtdec_get_int(blob, node,
"intel,gpe0-enable", 0));
writew(pmbase + ALT_GP_SMI_EN, fdtdec_get_int(blob, node,
"intel,alt-gp-smi-enable", 0));
/* Set up power management block and determine sleep mode */
reg32 = inl(pmbase + 0x04); /* PM1_CNT */
reg32 &= ~(7 << 10); /* SLP_TYP */
reg32 |= (1 << 0); /* SCI_EN */
outl(reg32, pmbase + 0x04);
/* Clear magic status bits to prevent unexpected wake */
setbits_le32(RCB_REG(0x3310), (1 << 4) | (1 << 5) | (1 << 0));
clrbits_le32(RCB_REG(0x3f02), 0xf);
return 0;
}
/* Magic register settings for power management */
static void pch_pm_init_magic(struct udevice *dev)
{
dm_pci_write_config8(dev, 0xa9, 0x46);
clrbits_le32(RCB_REG(0x232c), 1),
setbits_le32(RCB_REG(0x1100), 0x0000c13f);
clrsetbits_le32(RCB_REG(0x2320), 0x60, 0x10);
writel(0x00012fff, RCB_REG(0x3314));
clrsetbits_le32(RCB_REG(0x3318), 0x000f0330, 0x0dcf0400);
writel(0x04000000, RCB_REG(0x3324));
writel(0x00041400, RCB_REG(0x3368));
writel(0x3f8ddbff, RCB_REG(0x3388));
writel(0x00007001, RCB_REG(0x33ac));
writel(0x00181900, RCB_REG(0x33b0));
writel(0x00060A00, RCB_REG(0x33c0));
writel(0x06200840, RCB_REG(0x33d0));
writel(0x01010101, RCB_REG(0x3a28));
writel(0x040c0404, RCB_REG(0x3a2c));
writel(0x9000000a, RCB_REG(0x3a9c));
writel(0x03808033, RCB_REG(0x2b1c));
writel(0x80000009, RCB_REG(0x2b34));
writel(0x022ddfff, RCB_REG(0x3348));
writel(0x00000001, RCB_REG(0x334c));
writel(0x0001c000, RCB_REG(0x3358));
writel(0x3f8ddbff, RCB_REG(0x3380));
writel(0x0001c7e1, RCB_REG(0x3384));
writel(0x0001c7e1, RCB_REG(0x338c));
writel(0x0001c000, RCB_REG(0x3398));
writel(0x00181900, RCB_REG(0x33a8));
writel(0x00080000, RCB_REG(0x33dc));
writel(0x00000001, RCB_REG(0x33e0));
writel(0x0000040c, RCB_REG(0x3a20));
writel(0x01010101, RCB_REG(0x3a24));
writel(0x01010101, RCB_REG(0x3a30));
dm_pci_clrset_config32(dev, 0xac, 0x00200000, 0);
setbits_le32(RCB_REG(0x0410), 0x00000003);
setbits_le32(RCB_REG(0x2618), 0x08000000);
setbits_le32(RCB_REG(0x2300), 0x00000002);
setbits_le32(RCB_REG(0x2600), 0x00000008);
writel(0x00007001, RCB_REG(0x33b4));
writel(0x022ddfff, RCB_REG(0x3350));
writel(0x00000001, RCB_REG(0x3354));
/* Power Optimizer */
setbits_le32(RCB_REG(0x33d4), 0x08000000);
/*
* This stops the LCD from turning on:
* setbits_le32(RCB_REG(0x33c8), 0x08000080);
*/
writel(0x0000883c, RCB_REG(0x2b10));
writel(0x1e0a4616, RCB_REG(0x2b14));
writel(0x40000005, RCB_REG(0x2b24));
writel(0x0005db01, RCB_REG(0x2b20));
writel(0x05145005, RCB_REG(0x3a80));
writel(0x00001005, RCB_REG(0x3a84));
setbits_le32(RCB_REG(0x33d4), 0x2fff2fb1);
setbits_le32(RCB_REG(0x33c8), 0x00008000);
};
static void enable_port80_on_lpc(struct udevice *pch)
{
/* Enable port 80 POST on LPC */
dm_pci_write_config32(pch, PCH_RCBA_BASE, DEFAULT_RCBA | 1);
clrbits_le32(RCB_REG(GCS), 4);
}
/* CougarPoint PCH Power Management init */
static void cpt_pm_init(struct udevice *pch)
{
debug("CougarPoint PM init\n");
dm_pci_write_config8(pch, 0xa9, 0x47);
setbits_le32(RCB_REG(0x2238), (1 << 6) | (1 << 0));
setbits_le32(RCB_REG(0x228c), 1 << 0);
setbits_le32(RCB_REG(0x1100), (1 << 13) | (1 << 14));
setbits_le32(RCB_REG(0x0900), 1 << 14);
writel(0xc0388400, RCB_REG(0x2304));
setbits_le32(RCB_REG(0x2314), (1 << 5) | (1 << 18));
setbits_le32(RCB_REG(0x2320), (1 << 15) | (1 << 1));
clrsetbits_le32(RCB_REG(0x3314), ~0x1f, 0xf);
writel(0x050f0000, RCB_REG(0x3318));
writel(0x04000000, RCB_REG(0x3324));
setbits_le32(RCB_REG(0x3340), 0xfffff);
setbits_le32(RCB_REG(0x3344), 1 << 1);
writel(0x0001c000, RCB_REG(0x3360));
writel(0x00061100, RCB_REG(0x3368));
writel(0x7f8fdfff, RCB_REG(0x3378));
writel(0x000003fc, RCB_REG(0x337c));
writel(0x00001000, RCB_REG(0x3388));
writel(0x0001c000, RCB_REG(0x3390));
writel(0x00000800, RCB_REG(0x33a0));
writel(0x00001000, RCB_REG(0x33b0));
writel(0x00093900, RCB_REG(0x33c0));
writel(0x24653002, RCB_REG(0x33cc));
writel(0x062108fe, RCB_REG(0x33d0));
clrsetbits_le32(RCB_REG(0x33d4), 0x0fff0fff, 0x00670060);
writel(0x01010000, RCB_REG(0x3a28));
writel(0x01010404, RCB_REG(0x3a2c));
writel(0x01041041, RCB_REG(0x3a80));
clrsetbits_le32(RCB_REG(0x3a84), 0x0000ffff, 0x00001001);
setbits_le32(RCB_REG(0x3a84), 1 << 24); /* SATA 2/3 disabled */
setbits_le32(RCB_REG(0x3a88), 1 << 0); /* SATA 4/5 disabled */
writel(0x00000001, RCB_REG(0x3a6c));
clrsetbits_le32(RCB_REG(0x2344), ~0x00ffff00, 0xff00000c);
clrsetbits_le32(RCB_REG(0x80c), 0xff << 20, 0x11 << 20);
writel(0, RCB_REG(0x33c8));
setbits_le32(RCB_REG(0x21b0), 0xf);
}