2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <arch/ioapic.h>
22 #include <device/device.h>
23 #include <device/pci.h>
24 #include <device/pci_ops.h>
25 #include <device/pci_ids.h>
26 #include <console/console.h>
28 #include <pc80/isa-dma.h>
29 #include <pc80/mc146818rtc.h>
30 #include <pc80/i8259.h>
31 #include <cpu/x86/msr.h>
32 #include <cpu/amd/vr.h>
33 #include <cpu/amd/geode_post_code.h>
43 /* Master Configuration Register for Bus Masters.*/
44 static struct msrinit SB_MASTER_CONF_TABLE[] = {
45 {USB2_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00008f000}},
46 {ATA_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00048f000}},
47 {AC97_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00008f000}},
48 {MDD_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00000f000}},
52 /* 5536 Clock Gating*/
53 static struct msrinit CS5536_CLOCK_GATING_TABLE[] = {
55 {GLIU_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000004}},
56 {GLPCI_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000005}},
57 {GLCP_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000004}},
58 {MDD_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x050554111}}, /* SMBus clock gating errata (PBZ 2226 & SiBZ 3977) */
59 {ATA_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000005}},
60 {AC97_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000005}},
69 static struct acpiinit acpi_init_table[] = {
70 {ACPI_IO_BASE + 0x00, 0x01000000},
71 {ACPI_IO_BASE + 0x08, 0},
72 {ACPI_IO_BASE + 0x0C, 0},
73 {ACPI_IO_BASE + 0x1C, 0},
74 {ACPI_IO_BASE + 0x18, 0x0FFFFFFFF},
75 {ACPI_IO_BASE + 0x00, 0x0000FFFF},
76 {PMS_IO_BASE + PM_SCLK, 0x000000E00},
77 {PMS_IO_BASE + PM_SED, 0x000004601},
78 {PMS_IO_BASE + PM_SIDD, 0x000008C02},
79 {PMS_IO_BASE + PM_WKD, 0x0000000A0},
80 {PMS_IO_BASE + PM_WKXD, 0x0000000A0},
85 unsigned char fType; /* Flash type: NOR or NAND */
86 unsigned char fInterface; /* Flash interface: I/O or Memory */
87 unsigned long fMask; /* Flash size/mask */
90 static struct FLASH_DEVICE FlashInitTable[] = {
91 {FLASH_TYPE_NAND, FLASH_IF_MEM, FLASH_MEM_4K}, /* CS0, or Flash Device 0 */
92 {FLASH_TYPE_NONE, 0, 0}, /* CS1, or Flash Device 1 */
93 {FLASH_TYPE_NONE, 0, 0}, /* CS2, or Flash Device 2 */
94 {FLASH_TYPE_NONE, 0, 0}, /* CS3, or Flash Device 3 */
97 #define FlashInitTableLen (ARRAY_SIZE(FlashInitTable))
99 static u32 FlashPort[] = {
106 /* ***************************************************************************/
110 /* * Program ACPI LBAR and initialize ACPI registers.*/
112 /* ***************************************************************************/
113 static void pmChipsetInit(void)
118 port = (PMS_IO_BASE + 0x010);
119 val = 0x0E00; /* 1ms */
123 /* Make sure bits[3:0]=0000b to clear the */
125 port = (PMS_IO_BASE + 0x034);
126 val = 0x0A0; /* 5ms */
130 port = (PMS_IO_BASE + 0x030);
134 port = (PMS_IO_BASE + 0x014);
135 val = 0x04601; /* 5ms, # of 3.57954MHz clock edges */
139 port = (PMS_IO_BASE + 0x020);
140 val = 0x08C02; /* 10ms, # of 3.57954MHz clock edges */
144 /***************************************************************************
148 * Flash LBARs need to be setup before VSA init so the PCI BARs have
149 * correct size info. Call this routine only if flash needs to be
150 * configured (don't call it if you want IDE).
152 **************************************************************************/
153 static void ChipsetFlashSetup(void)
159 printk(BIOS_DEBUG, "ChipsetFlashSetup: Start\n");
160 for (i = 0; i < FlashInitTableLen; i++) {
161 if (FlashInitTable[i].fType != FLASH_TYPE_NONE) {
162 printk(BIOS_DEBUG, "Enable CS%d\n", i);
163 /* we need to configure the memory/IO mask */
164 msr = rdmsr(FlashPort[i]);
165 msr.hi = 0; /* start with the "enabled" bit clear */
166 if (FlashInitTable[i].fType == FLASH_TYPE_NAND)
167 msr.hi |= 0x00000002;
169 msr.hi &= ~0x00000002;
170 if (FlashInitTable[i].fInterface == FLASH_IF_MEM)
171 msr.hi |= 0x00000004;
173 msr.hi &= ~0x00000004;
174 msr.hi |= FlashInitTable[i].fMask;
175 printk(BIOS_DEBUG, "MSR(0x%08X, %08X_%08X)\n", FlashPort[i],
177 wrmsr(FlashPort[i], msr);
179 /* now write-enable the device */
180 msr = rdmsr(MDD_NORF_CNTRL);
182 printk(BIOS_DEBUG, "MSR(0x%08X, %08X_%08X)\n", MDD_NORF_CNTRL,
184 wrmsr(MDD_NORF_CNTRL, msr);
186 /* update the number enabled */
191 printk(BIOS_DEBUG, "ChipsetFlashSetup: Finish\n");
195 /* ***************************************************************************/
197 /* * enable_ide_nand_flash_header */
198 /* Run after VSA init to enable the flash PCI device header */
200 /* ***************************************************************************/
201 static void enable_ide_nand_flash_header(void)
203 /* Tell VSA to use FLASH PCI header. Not IDE header. */
204 outl(0x80007A40, 0xCF8);
205 outl(0xDEADBEEF, 0xCFC);
208 #define RTC_CENTURY 0x32
209 #define RTC_DOMA 0x3D
210 #define RTC_MONA 0x3E
212 static void lpc_init(struct southbridge_amd_cs5536_config *sb)
216 if (sb->lpc_serirq_enable) {
217 msr.lo = sb->lpc_serirq_enable;
219 wrmsr(MDD_IRQM_LPC, msr);
220 if (sb->lpc_serirq_polarity) {
221 msr.lo = sb->lpc_serirq_polarity << 16;
222 msr.lo |= (sb->lpc_serirq_mode << 6) | (1 << 7); /* enable */
224 wrmsr(MDD_LPC_SIRQ, msr);
228 /* Allow DMA from LPC */
229 msr = rdmsr(MDD_DMA_MAP);
231 wrmsr(MDD_DMA_MAP, msr);
233 /* enable the RTC/CMOS century byte at address 32h */
234 msr = rdmsr(MDD_RTC_CENTURY_OFFSET);
235 msr.lo = RTC_CENTURY;
236 wrmsr(MDD_RTC_CENTURY_OFFSET, msr);
238 /* enable the RTC/CMOS day of month and month alarms */
239 msr = rdmsr(MDD_RTC_DOMA_IND);
241 wrmsr(MDD_RTC_DOMA_IND, msr);
243 msr = rdmsr(MDD_RTC_MONA_IND);
245 wrmsr(MDD_RTC_MONA_IND, msr);
254 * Depending on settings in the config struct, enable COM1 or COM2 or both.
256 * If the enable is NOT set, the UARTs are explicitly disabled, which is
257 * required if (e.g.) there is a Super I/O attached that does COM1 or COM2.
259 * @param sb Southbridge config structure.
261 static void uarts_init(struct southbridge_amd_cs5536_config *sb)
268 dev = dev_find_device(PCI_VENDOR_ID_AMD,
269 PCI_DEVICE_ID_AMD_CS5536_ISA, 0);
270 gpio_addr = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
271 gpio_addr &= ~1; /* Clear I/O bit */
272 printk(BIOS_DEBUG, "GPIO_ADDR: %08X\n", gpio_addr);
274 /* This could be extended to support IR modes. */
277 if (sb->com1_enable) {
278 printk(BIOS_SPEW, "uarts_init: enable COM1\n");
279 /* Set the address. */
280 switch (sb->com1_address) {
294 msr = rdmsr(MDD_LEG_IO);
295 msr.lo |= addr << 16;
296 wrmsr(MDD_LEG_IO, msr);
299 msr = rdmsr(MDD_IRQM_YHIGH);
300 msr.lo |= sb->com1_irq << 24;
301 wrmsr(MDD_IRQM_YHIGH, msr);
303 /* GPIO8 - UART1_TX */
304 /* Set: Output Enable (0x4) */
305 outl(GPIOL_8_SET, gpio_addr + GPIOL_OUTPUT_ENABLE);
306 /* Set: OUTAUX1 Select (0x10) */
307 outl(GPIOL_8_SET, gpio_addr + GPIOL_OUT_AUX1_SELECT);
309 /* GPIO9 - UART1_RX */
310 /* Set: Input Enable (0x20) */
311 outl(GPIOL_9_SET, gpio_addr + GPIOL_INPUT_ENABLE);
312 /* Set: INAUX1 Select (0x34) */
313 outl(GPIOL_9_SET, gpio_addr + GPIOL_IN_AUX1_SELECT);
315 /* Set: GPIO 8 + 9 Pull Up (0x18) */
316 outl(GPIOL_8_SET | GPIOL_9_SET,
317 gpio_addr + GPIOL_PULLUP_ENABLE);
321 * Bit 1 = device enable
322 * Bit 4 = allow access to the upper banks
324 msr.lo = (1 << 4) | (1 << 1);
326 wrmsr(MDD_UART1_CONF, msr);
328 /* Reset and disable COM1. */
329 printk(BIOS_SPEW, "uarts_init: disable COM1\n");
330 msr = rdmsr(MDD_UART1_CONF);
331 msr.lo = 1; /* Reset */
332 wrmsr(MDD_UART1_CONF, msr);
333 msr.lo = 0; /* Disabled */
334 wrmsr(MDD_UART1_CONF, msr);
336 /* Disable the IRQ. */
337 msr = rdmsr(MDD_LEG_IO);
338 msr.lo &= ~(0xF << 16);
339 wrmsr(MDD_LEG_IO, msr);
343 if (sb->com2_enable) {
344 printk(BIOS_SPEW, "uarts_init: enable COM2\n");
345 switch (sb->com2_address) {
359 msr = rdmsr(MDD_LEG_IO);
360 msr.lo |= addr << 20;
361 wrmsr(MDD_LEG_IO, msr);
362 printk(BIOS_SPEW, "uarts_init: wrote COM2 address 0x%x\n", sb->com2_address);
365 msr = rdmsr(MDD_IRQM_YHIGH);
366 msr.lo |= sb->com2_irq << 28;
367 wrmsr(MDD_IRQM_YHIGH, msr);
368 printk(BIOS_SPEW, "uarts_init: set COM2 irq\n");
370 /* GPIO3 - UART2_RX */
371 /* Set: Input Enable (0x20) */
372 outl(GPIOL_3_SET, gpio_addr + GPIOL_INPUT_ENABLE);
373 /* Set: INAUX1 Select (0x34) */
374 outl(GPIOL_3_SET, gpio_addr + GPIOL_IN_AUX1_SELECT);
376 /* GPIO4 - UART2_TX */
377 /* Set: Output Enable (0x4) */
378 outl(GPIOL_4_SET, gpio_addr + GPIOL_OUTPUT_ENABLE);
379 printk(BIOS_SPEW, "uarts_init: set output enable\n");
380 /* Set: OUTAUX1 Select (0x10) */
381 outl(GPIOL_4_SET, gpio_addr + GPIOL_OUT_AUX1_SELECT);
382 printk(BIOS_SPEW, "uarts_init: set OUTAUX1\n");
384 /* Set: GPIO 3 + 4 Pull Up (0x18) */
385 outl(GPIOL_3_SET | GPIOL_4_SET,
386 gpio_addr + GPIOL_PULLUP_ENABLE);
387 printk(BIOS_SPEW, "uarts_init: set pullup COM2\n");
391 * Bit 1 = device enable
392 * Bit 4 = allow access to the upper banks
394 msr.lo = (1 << 4) | (1 << 1);
396 wrmsr(MDD_UART2_CONF, msr);
397 printk(BIOS_SPEW, "uarts_init: COM2 enabled\n");
399 printk(BIOS_SPEW, "uarts_init: disable COM2\n");
400 /* Reset and disable COM2. */
401 msr = rdmsr(MDD_UART2_CONF);
402 msr.lo = 1; /* Reset */
403 wrmsr(MDD_UART2_CONF, msr);
404 msr.lo = 0; /* Disabled */
405 wrmsr(MDD_UART2_CONF, msr);
407 /* Disable the IRQ. */
408 msr = rdmsr(MDD_LEG_IO);
409 msr.lo &= ~(0xF << 20);
410 wrmsr(MDD_LEG_IO, msr);
415 #define HCCPARAMS 0x08
417 #define USB_HCCPW_SET (1 << 1)
419 #define APU_SET (1 << 15)
421 #define PMUX_HOST 0x02
422 #define PMUX_DEVICE 0x03
423 #define PUEN_SET (1 << 2)
424 #define UDCDEVCTL 0x404
425 #define UDC_SD_SET (1 << 10)
427 #define PADEN_SET (1 << 7)
429 static void enable_USB_port4(struct southbridge_amd_cs5536_config *sb)
435 dev = dev_find_device(PCI_VENDOR_ID_AMD,
436 PCI_DEVICE_ID_AMD_CS5536_EHCI, 0);
439 /* Serial Short Detect Enable */
440 msr = rdmsr(USB2_SB_GLD_MSR_CONF);
441 msr.hi |= USB2_UPPER_SSDEN_SET;
442 wrmsr(USB2_SB_GLD_MSR_CONF, msr);
444 /* write to clear diag register */
445 wrmsr(USB2_SB_GLD_MSR_DIAG, rdmsr(USB2_SB_GLD_MSR_DIAG));
447 bar = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
449 /* Make HCCPARAMS writeable */
450 write32(bar + IPREG04, read32(bar + IPREG04) | USB_HCCPW_SET);
452 /* ; EECP=50h, IST=01h, ASPC=1 */
453 write32(bar + HCCPARAMS, 0x00005012);
456 dev = dev_find_device(PCI_VENDOR_ID_AMD,
457 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
459 bar = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
461 write32(bar + UOCMUX, read32(bar + UOCMUX) & PUEN_SET);
463 /* Host or Device? */
464 if (sb->enable_USBP4_device) {
465 write32(bar + UOCMUX, read32(bar + UOCMUX) | PMUX_DEVICE);
467 write32(bar + UOCMUX, read32(bar + UOCMUX) | PMUX_HOST);
470 /* Overcurrent configuration */
471 if (sb->enable_USBP4_overcurrent) {
472 write32(bar + UOCCAP, read32(bar + UOCCAP)
473 | sb->enable_USBP4_overcurrent);
477 /* PBz#6466: If the UOC(OTG) device, port 4, is configured as a device,
478 * then perform the following sequence:
480 * - set SD bit in DEVCTRL udc register
481 * - set PADEN (former OTGPADEN) bit in uoc register
482 * - set APU bit in uoc register */
483 if (sb->enable_USBP4_device) {
484 dev = dev_find_device(PCI_VENDOR_ID_AMD,
485 PCI_DEVICE_ID_AMD_CS5536_UDC, 0);
487 bar = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
488 write32(bar + UDCDEVCTL,
489 read32(bar + UDCDEVCTL) | UDC_SD_SET);
493 dev = dev_find_device(PCI_VENDOR_ID_AMD,
494 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
496 bar = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
497 write32(bar + UOCCTL, read32(bar + UOCCTL) | PADEN_SET);
498 write32(bar + UOCCAP, read32(bar + UOCCAP) | APU_SET);
502 /* Disable virtual PCI UDC and OTG headers */
503 dev = dev_find_device(PCI_VENDOR_ID_AMD,
504 PCI_DEVICE_ID_AMD_CS5536_UDC, 0);
506 pci_write_config32(dev, 0x7C, 0xDEADBEEF);
509 dev = dev_find_device(PCI_VENDOR_ID_AMD,
510 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
512 pci_write_config32(dev, 0x7C, 0xDEADBEEF);
516 /****************************************************************************
520 * Called from northbridge init (Pre-VSA).
522 ****************************************************************************/
523 void chipsetinit(void)
528 struct southbridge_amd_cs5536_config *sb;
531 dev = dev_find_slot(0, PCI_DEVFN(0xf, 0));
534 printk(BIOS_ERR, "CS5536 not found.\n");
538 sb = (struct southbridge_amd_cs5536_config *)dev->chip_info;
541 printk(BIOS_ERR, "CS5536 configuration not found.\n");
545 post_code(P80_CHIPSET_INIT);
547 /* we hope NEVER to be in coreboot when S3 resumes
548 if (! IsS3Resume()) */
550 struct acpiinit *aci = acpi_init_table;
551 for (; aci->ioreg; aci++) {
552 outl(aci->regdata, aci->ioreg);
560 outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
561 outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
563 /* Allow IO read and writes during a ATA DMA operation. */
564 /* This could be done in the HD rom but do it here for easier debugging. */
565 msrnum = ATA_SB_GLD_MSR_ERR;
570 /* Enable Post Primary IDE. */
571 msrnum = GLPCI_SB_CTRL;
573 msr.lo |= GLPCI_CRTL_PPIDE_SET;
576 csi = SB_MASTER_CONF_TABLE;
577 for (; csi->msrnum; csi++) {
578 msr.lo = csi->msr.lo;
579 msr.hi = csi->msr.hi;
580 wrmsr(csi->msrnum, msr); // MSR - see table above
583 /* Flash BAR size Setup */
584 printk(BIOS_ERR, "%sDoing ChipsetFlashSetup()\n",
585 sb->enable_ide_nand_flash == 1 ? "" : "Not ");
586 if (sb->enable_ide_nand_flash == 1)
590 /* Set up Hardware Clock Gating */
593 csi = CS5536_CLOCK_GATING_TABLE;
594 for (; csi->msrnum; csi++) {
595 msr.lo = csi->msr.lo;
596 msr.hi = csi->msr.hi;
597 wrmsr(csi->msrnum, msr); // MSR - see table above
602 static void southbridge_init(struct device *dev)
604 struct southbridge_amd_cs5536_config *sb =
605 (struct southbridge_amd_cs5536_config *)dev->chip_info;
608 * struct device *gpiodev;
609 * unsigned short gpiobase = MDD_GPIO;
612 printk(BIOS_ERR, "cs5536: %s\n", __func__);
615 printk(BIOS_ERR, "CS5536 configuration not found.\n");
623 if (sb->enable_gpio_int_route) {
624 vrWrite((VRC_MISCELLANEOUS << 8) + PCI_INT_AB,
625 (sb->enable_gpio_int_route & 0xFFFF));
626 vrWrite((VRC_MISCELLANEOUS << 8) + PCI_INT_CD,
627 (sb->enable_gpio_int_route >> 16));
630 printk(BIOS_ERR, "cs5536: %s: enable_ide_nand_flash is %d\n", __func__,
631 sb->enable_ide_nand_flash);
632 if (sb->enable_ide_nand_flash == 1) {
633 enable_ide_nand_flash_header();
636 enable_USB_port4(sb);
638 /* disable unwanted virtual PCI devices */
639 for (i = 0; (i < MAX_UNWANTED_VPCI) && (0 != sb->unwanted_vpci[i]); i++) {
640 printk(BIOS_DEBUG, "Disabling VPCI device: 0x%08X\n",
641 sb->unwanted_vpci[i]);
642 outl(sb->unwanted_vpci[i] + 0x7C, 0xCF8);
643 outl(0xDEADBEEF, 0xCFC);
647 static void cs5536_read_resources(device_t dev)
649 struct resource *res;
651 pci_dev_read_resources(dev);
653 res = new_resource(dev, 1);
655 res->size = 0x1000UL;
656 res->limit = 0xffffUL;
657 res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
659 res = new_resource(dev, 3); /* IOAPIC */
660 res->base = IO_APIC_ADDR;
661 res->size = 0x00001000;
662 res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
665 static void southbridge_enable(struct device *dev)
667 printk(BIOS_ERR, "cs5536: %s: dev is %p\n", __func__, dev);
671 static struct device_operations southbridge_ops = {
672 .read_resources = cs5536_read_resources,
673 .set_resources = pci_dev_set_resources,
674 .enable_resources = pci_dev_enable_resources,
675 .init = southbridge_init,
676 // .enable = southbridge_enable,
677 .scan_bus = scan_static_bus,
680 static const struct pci_driver cs5536_pci_driver __pci_driver = {
681 .ops = &southbridge_ops,
682 .vendor = PCI_VENDOR_ID_AMD,
683 .device = PCI_DEVICE_ID_AMD_CS5536_ISA
686 struct chip_operations southbridge_amd_cs5536_ops = {
687 CHIP_NAME("AMD Geode CS5536 Southbridge")
688 /* This is only called when this device is listed in the
689 * static device tree.
691 .enable_dev = southbridge_enable,