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 <device/device.h>
22 #include <device/pci.h>
23 #include <device/pci_ops.h>
24 #include <device/pci_ids.h>
25 #include <console/console.h>
27 #include <pc80/isa-dma.h>
28 #include <pc80/mc146818rtc.h>
29 #include <cpu/x86/msr.h>
30 #include <cpu/amd/vr.h>
31 #include <cpu/amd/geode_post_code.h>
35 extern void setup_i8259(void);
42 /* Master Configuration Register for Bus Masters.*/
43 struct msrinit SB_MASTER_CONF_TABLE[] = {
44 {USB2_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00008f000}},
45 {ATA_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00048f000}},
46 {AC97_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00008f000}},
47 {MDD_SB_GLD_MSR_CONF, {.hi = 0,.lo = 0x00000f000}},
51 /* 5536 Clock Gating*/
52 struct msrinit CS5536_CLOCK_GATING_TABLE[] = {
54 {GLIU_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000004}},
55 {GLPCI_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000005}},
56 {GLCP_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000004}},
57 {MDD_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x050554111}}, /* SMBus clock gating errata (PBZ 2226 & SiBZ 3977) */
58 {ATA_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000005}},
59 {AC97_SB_GLD_MSR_PM, {.hi = 0,.lo = 0x000000005}},
68 struct acpiinit acpi_init_table[] = {
69 {ACPI_IO_BASE + 0x00, 0x01000000},
70 {ACPI_IO_BASE + 0x08, 0},
71 {ACPI_IO_BASE + 0x0C, 0},
72 {ACPI_IO_BASE + 0x1C, 0},
73 {ACPI_IO_BASE + 0x18, 0x0FFFFFFFF},
74 {ACPI_IO_BASE + 0x00, 0x0000FFFF},
75 {PMS_IO_BASE + PM_SCLK, 0x000000E00},
76 {PMS_IO_BASE + PM_SED, 0x000004601},
77 {PMS_IO_BASE + PM_SIDD, 0x000008C02},
78 {PMS_IO_BASE + PM_WKD, 0x0000000A0},
79 {PMS_IO_BASE + PM_WKXD, 0x0000000A0},
84 unsigned char fType; /* Flash type: NOR or NAND */
85 unsigned char fInterface; /* Flash interface: I/O or Memory */
86 unsigned long fMask; /* Flash size/mask */
89 struct FLASH_DEVICE FlashInitTable[] = {
90 {FLASH_TYPE_NAND, FLASH_IF_MEM, FLASH_MEM_4K}, /* CS0, or Flash Device 0 */
91 {FLASH_TYPE_NONE, 0, 0}, /* CS1, or Flash Device 1 */
92 {FLASH_TYPE_NONE, 0, 0}, /* CS2, or Flash Device 2 */
93 {FLASH_TYPE_NONE, 0, 0}, /* CS3, or Flash Device 3 */
96 #define FlashInitTableLen (sizeof(FlashInitTable)/sizeof(FlashInitTable[0]))
98 uint32_t FlashPort[] = {
105 /* ***************************************************************************/
109 /* * Program ACPI LBAR and initialize ACPI registers.*/
111 /* ***************************************************************************/
112 static void pmChipsetInit(void)
117 port = (PMS_IO_BASE + 0x010);
118 val = 0x0E00; /* 1ms */
122 /* Make sure bits[3:0]=0000b to clear the */
124 port = (PMS_IO_BASE + 0x034);
125 val = 0x0A0; /* 5ms */
129 port = (PMS_IO_BASE + 0x030);
133 port = (PMS_IO_BASE + 0x014);
134 val = 0x04601; /* 5ms, # of 3.57954MHz clock edges */
138 port = (PMS_IO_BASE + 0x020);
139 val = 0x08C02; /* 10ms, # of 3.57954MHz clock edges */
143 /***************************************************************************
147 * Flash LBARs need to be setup before VSA init so the PCI BARs have
148 * correct size info. Call this routine only if flash needs to be
149 * configured (don't call it if you want IDE).
151 **************************************************************************/
152 static void ChipsetFlashSetup(void)
158 printk_debug("ChipsetFlashSetup: Start\n");
159 for (i = 0; i < FlashInitTableLen; i++) {
160 if (FlashInitTable[i].fType != FLASH_TYPE_NONE) {
161 printk_debug("Enable CS%d\n", i);
162 /* we need to configure the memory/IO mask */
163 msr = rdmsr(FlashPort[i]);
164 msr.hi = 0; /* start with the "enabled" bit clear */
165 if (FlashInitTable[i].fType == FLASH_TYPE_NAND)
166 msr.hi |= 0x00000002;
168 msr.hi &= ~0x00000002;
169 if (FlashInitTable[i].fInterface == FLASH_IF_MEM)
170 msr.hi |= 0x00000004;
172 msr.hi &= ~0x00000004;
173 msr.hi |= FlashInitTable[i].fMask;
174 printk_debug("MSR(0x%08X, %08X_%08X)\n", FlashPort[i],
176 wrmsr(FlashPort[i], msr);
178 /* now write-enable the device */
179 msr = rdmsr(MDD_NORF_CNTRL);
181 printk_debug("MSR(0x%08X, %08X_%08X)\n", MDD_NORF_CNTRL,
183 wrmsr(MDD_NORF_CNTRL, msr);
185 /* update the number enabled */
190 printk_debug("ChipsetFlashSetup: Finish\n");
194 /* ***************************************************************************/
196 /* * enable_ide_nand_flash_header */
197 /* Run after VSA init to enable the flash PCI device header */
199 /* ***************************************************************************/
200 static void enable_ide_nand_flash_header()
202 /* Tell VSA to use FLASH PCI header. Not IDE header. */
203 outl(0x80007A40, 0xCF8);
204 outl(0xDEADBEEF, 0xCFC);
207 #define RTC_CENTURY 0x32
208 #define RTC_DOMA 0x3D
209 #define RTC_MONA 0x3E
211 static void lpc_init(struct southbridge_amd_cs5536_config *sb)
215 if (sb->lpc_serirq_enable) {
216 msr.lo = sb->lpc_serirq_enable;
218 wrmsr(MDD_IRQM_LPC, msr);
219 if (sb->lpc_serirq_polarity) {
220 msr.lo = sb->lpc_serirq_polarity << 16;
221 msr.lo |= (sb->lpc_serirq_mode << 6) | (1 << 7); /* enable */
223 wrmsr(MDD_LPC_SIRQ, msr);
227 /* Allow DMA from LPC */
228 msr = rdmsr(MDD_DMA_MAP);
230 wrmsr(MDD_DMA_MAP, msr);
232 /* enable the RTC/CMOS century byte at address 32h */
233 msr = rdmsr(MDD_RTC_CENTURY_OFFSET);
234 msr.lo = RTC_CENTURY;
235 wrmsr(MDD_RTC_CENTURY_OFFSET, msr);
237 /* enable the RTC/CMOS day of month and month alarms */
238 msr = rdmsr(MDD_RTC_DOMA_IND);
240 wrmsr(MDD_RTC_DOMA_IND, msr);
242 msr = rdmsr(MDD_RTC_MONA_IND);
244 wrmsr(MDD_RTC_MONA_IND, msr);
251 static void uarts_init(struct southbridge_amd_cs5536_config *sb)
258 dev = dev_find_device(PCI_VENDOR_ID_AMD,
259 PCI_DEVICE_ID_AMD_CS5536_ISA, 0);
260 gpio_addr = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
261 gpio_addr &= ~1; /* clear IO bit */
262 printk_debug("GPIO_ADDR: %08X\n", gpio_addr);
264 /* This could be extended to support IR modes */
267 if (sb->com1_enable) {
268 /* Set the address */
269 switch (sb->com1_address) {
286 msr = rdmsr(MDD_LEG_IO);
287 msr.lo |= addr << 16;
288 wrmsr(MDD_LEG_IO, msr);
291 msr = rdmsr(MDD_IRQM_YHIGH);
292 msr.lo |= sb->com1_irq << 24;
293 wrmsr(MDD_IRQM_YHIGH, msr);
295 /* GPIO8 - UART1_TX */
296 /* Set: Output Enable (0x4) */
297 outl(GPIOL_8_SET, gpio_addr + GPIOL_OUTPUT_ENABLE);
298 /* Set: OUTAUX1 Select (0x10) */
299 outl(GPIOL_8_SET, gpio_addr + GPIOL_OUT_AUX1_SELECT);
301 /* GPIO8 - UART1_RX */
302 /* Set: Input Enable (0x20) */
303 outl(GPIOL_9_SET, gpio_addr + GPIOL_INPUT_ENABLE);
304 /* Set: INAUX1 Select (0x34) */
305 outl(GPIOL_9_SET, gpio_addr + GPIOL_IN_AUX1_SELECT);
307 /* Set: GPIO 8 + 9 Pull Up (0x18) */
308 outl(GPIOL_8_SET | GPIOL_9_SET,
309 gpio_addr + GPIOL_PULLUP_ENABLE);
312 /* Bit 1 = device enable Bit 4 = allow access to the upper banks */
313 msr.lo = (1 << 4) | (1 << 1);
315 wrmsr(MDD_UART1_CONF, msr);
318 /* Reset and disable COM1 */
319 msr = rdmsr(MDD_UART1_CONF);
321 wrmsr(MDD_UART1_CONF, msr);
322 msr.lo = 0; // disabled
323 wrmsr(MDD_UART1_CONF, msr);
325 /* Disable the IRQ */
326 msr = rdmsr(MDD_LEG_IO);
327 msr.lo &= ~(0xF << 16);
328 wrmsr(MDD_LEG_IO, msr);
332 if (sb->com2_enable) {
333 switch (sb->com2_address) {
350 msr = rdmsr(MDD_LEG_IO);
351 msr.lo |= addr << 20;
352 wrmsr(MDD_LEG_IO, msr);
355 msr = rdmsr(MDD_IRQM_YHIGH);
356 msr.lo |= sb->com2_irq << 28;
357 wrmsr(MDD_IRQM_YHIGH, msr);
359 /* GPIO4 - UART2_RX */
360 /* Set: Output Enable (0x4) */
361 outl(GPIOL_4_SET, gpio_addr + GPIOL_OUTPUT_ENABLE);
362 /* Set: OUTAUX1 Select (0x10) */
363 outl(GPIOL_4_SET, gpio_addr + GPIOL_OUT_AUX1_SELECT);
365 /* GPIO3 - UART2_TX */
366 /* Set: Input Enable (0x20) */
367 outl(GPIOL_3_SET, gpio_addr + GPIOL_INPUT_ENABLE);
368 /* Set: INAUX1 Select (0x34) */
369 outl(GPIOL_3_SET, gpio_addr + GPIOL_IN_AUX1_SELECT);
371 /* Set: GPIO 3 and 4 Pull Up (0x18) */
372 outl(GPIOL_3_SET | GPIOL_4_SET,
373 gpio_addr + GPIOL_PULLUP_ENABLE);
376 /* Bit 1 = device enable Bit 4 = allow access to the upper banks */
377 msr.lo = (1 << 4) | (1 << 1);
379 wrmsr(MDD_UART2_CONF, msr);
382 /* Reset and disable COM2 */
383 msr = rdmsr(MDD_UART2_CONF);
385 wrmsr(MDD_UART2_CONF, msr);
386 msr.lo = 0; // disabled
387 wrmsr(MDD_UART2_CONF, msr);
389 /* Disable the IRQ */
390 msr = rdmsr(MDD_LEG_IO);
391 msr.lo &= ~(0xF << 20);
392 wrmsr(MDD_LEG_IO, msr);
396 #define HCCPARAMS 0x08
398 #define USB_HCCPW_SET (1 << 1)
400 #define APU_SET (1 << 15)
402 #define PMUX_HOST 0x02
403 #define PMUX_DEVICE 0x03
404 #define PUEN_SET (1 << 2)
405 #define UDCDEVCTL 0x404
406 #define UDC_SD_SET (1 << 10)
408 #define PADEN_SET (1 << 7)
410 static void enable_USB_port4(struct southbridge_amd_cs5536_config *sb)
416 dev = dev_find_device(PCI_VENDOR_ID_AMD,
417 PCI_DEVICE_ID_AMD_CS5536_EHCI, 0);
420 /* Serial Short Detect Enable */
421 msr = rdmsr(USB2_SB_GLD_MSR_CONF);
422 msr.hi |= USB2_UPPER_SSDEN_SET;
423 wrmsr(USB2_SB_GLD_MSR_CONF, msr);
425 /* write to clear diag register */
426 wrmsr(USB2_SB_GLD_MSR_DIAG, rdmsr(USB2_SB_GLD_MSR_DIAG));
428 bar = (uint32_t *) pci_read_config32(dev, PCI_BASE_ADDRESS_0);
430 /* Make HCCPARAMS writeable */
431 *(bar + IPREG04) |= USB_HCCPW_SET;
433 /* ; EECP=50h, IST=01h, ASPC=1 */
434 *(bar + HCCPARAMS) = 0x00005012;
437 dev = dev_find_device(PCI_VENDOR_ID_AMD,
438 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
440 bar = (uint32_t *) pci_read_config32(dev, PCI_BASE_ADDRESS_0);
442 *(bar + UOCMUX) &= PUEN_SET;
444 /* Host or Device? */
445 if (sb->enable_USBP4_device) {
446 *(bar + UOCMUX) |= PMUX_DEVICE;
448 *(bar + UOCMUX) |= PMUX_HOST;
451 /* Overcurrent configuration */
452 if (sb->enable_USBP4_overcurrent) {
453 *(bar + UOCCAP) |= sb->enable_USBP4_overcurrent;
457 /* PBz#6466: If the UOC(OTG) device, port 4, is configured as a device,
458 * then perform the following sequence:
460 * - set SD bit in DEVCTRL udc register
461 * - set PADEN (former OTGPADEN) bit in uoc register
462 * - set APU bit in uoc register */
463 if (sb->enable_USBP4_device) {
464 dev = dev_find_device(PCI_VENDOR_ID_AMD,
465 PCI_DEVICE_ID_AMD_CS5536_UDC, 0);
467 bar = (uint32_t *) pci_read_config32(dev,
469 *(bar + UDCDEVCTL) |= UDC_SD_SET;
473 dev = dev_find_device(PCI_VENDOR_ID_AMD,
474 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
476 bar = (uint32_t *) pci_read_config32(dev,
478 *(bar + UOCCTL) |= PADEN_SET;
479 *(bar + UOCCAP) |= APU_SET;
483 /* Disable virtual PCI UDC and OTG headers */
484 dev = dev_find_device(PCI_VENDOR_ID_AMD,
485 PCI_DEVICE_ID_AMD_CS5536_UDC, 0);
487 pci_write_config32(dev, 0x7C, 0xDEADBEEF);
490 dev = dev_find_device(PCI_VENDOR_ID_AMD,
491 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
493 pci_write_config32(dev, 0x7C, 0xDEADBEEF);
497 /* ***************************************************************************/
500 /* Called from northbridge init (Pre-VSA). */
502 /* ***************************************************************************/
503 void chipsetinit(void)
508 struct southbridge_amd_cs5536_config *sb =
509 (struct southbridge_amd_cs5536_config *)dev->chip_info;
512 post_code(P80_CHIPSET_INIT);
514 /* we hope NEVER to be in coreboot when S3 resumes
515 if (! IsS3Resume()) */
517 struct acpiinit *aci = acpi_init_table;
518 for (; aci->ioreg; aci++) {
519 outl(aci->regdata, aci->ioreg);
527 outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
528 outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
530 /* Allow IO read and writes during a ATA DMA operation. */
531 /* This could be done in the HD rom but do it here for easier debugging. */
532 msrnum = ATA_SB_GLD_MSR_ERR;
537 /* Enable Post Primary IDE. */
538 msrnum = GLPCI_SB_CTRL;
540 msr.lo |= GLPCI_CRTL_PPIDE_SET;
543 csi = SB_MASTER_CONF_TABLE;
544 for (; csi->msrnum; csi++) {
545 msr.lo = csi->msr.lo;
546 msr.hi = csi->msr.hi;
547 wrmsr(csi->msrnum, msr); // MSR - see table above
550 /* Flash BAR size Setup */
551 printk_err("%sDoing ChipsetFlashSetup()\n",
552 sb->enable_ide_nand_flash == 1 ? "" : "Not ");
553 if (sb->enable_ide_nand_flash == 1)
557 /* Set up Hardware Clock Gating */
560 csi = CS5536_CLOCK_GATING_TABLE;
561 for (; csi->msrnum; csi++) {
562 msr.lo = csi->msr.lo;
563 msr.hi = csi->msr.hi;
564 wrmsr(csi->msrnum, msr); // MSR - see table above
569 static void southbridge_init(struct device *dev)
571 struct southbridge_amd_cs5536_config *sb =
572 (struct southbridge_amd_cs5536_config *)dev->chip_info;
575 * struct device *gpiodev;
576 * unsigned short gpiobase = MDD_GPIO;
579 printk_err("cs5536: %s\n", __FUNCTION__);
584 if (sb->enable_gpio_int_route) {
585 vrWrite((VRC_MISCELLANEOUS << 8) + PCI_INT_AB,
586 (sb->enable_gpio_int_route & 0xFFFF));
587 vrWrite((VRC_MISCELLANEOUS << 8) + PCI_INT_CD,
588 (sb->enable_gpio_int_route >> 16));
591 printk_err("cs5536: %s: enable_ide_nand_flash is %d\n", __FUNCTION__,
592 sb->enable_ide_nand_flash);
593 if (sb->enable_ide_nand_flash == 1) {
594 enable_ide_nand_flash_header();
597 enable_USB_port4(sb);
599 /* disable unwanted virtual PCI devices */
600 for (i = 0; (i < MAX_UNWANTED_VPCI) && (0 != sb->unwanted_vpci[i]); i++) {
601 printk_debug("Disabling VPCI device: 0x%08X\n",
602 sb->unwanted_vpci[i]);
603 outl(sb->unwanted_vpci[i] + 0x7C, 0xCF8);
604 outl(0xDEADBEEF, 0xCFC);
608 static void southbridge_enable(struct device *dev)
610 printk_err("cs5536: %s: dev is %p\n", __FUNCTION__, dev);
614 static void cs5536_pci_dev_enable_resources(device_t dev)
616 printk_err("cs5536: %s()\n", __FUNCTION__);
617 pci_dev_enable_resources(dev);
618 enable_childrens_resources(dev);
621 static struct device_operations southbridge_ops = {
622 .read_resources = pci_dev_read_resources,
623 .set_resources = pci_dev_set_resources,
624 .enable_resources = cs5536_pci_dev_enable_resources,
625 .init = southbridge_init,
626 // .enable = southbridge_enable,
627 .scan_bus = scan_static_bus,
630 static const struct pci_driver cs5536_pci_driver __pci_driver = {
631 .ops = &southbridge_ops,
632 .vendor = PCI_VENDOR_ID_AMD,
633 .device = PCI_DEVICE_ID_AMD_CS5536_ISA
636 struct chip_operations southbridge_amd_cs5536_ops = {
637 CHIP_NAME("AMD Geode CS5536 Southbridge")
638 /* This is only called when this device is listed in the
639 * static device tree.
641 .enable_dev = southbridge_enable,