2 * This file is part of the LinuxBIOS project.
4 * Copyright (C) 2007 Advanced Micro Devices
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 /* mov eax, 0x057642 ; 100ms, works*/
135 val = 0x04601; /* 5ms */
139 port = (PMS_IO_BASE + 0x020);
140 /* mov eax, 0x0AEC84 ; 200ms, works*/
141 val = 0x08C02; /* 10ms */
145 /***************************************************************************
149 * Flash LBARs need to be setup before VSA init so the PCI BARs have
150 * correct size info. Call this routine only if flash needs to be
151 * configured (don't call it if you want IDE).
153 **************************************************************************/
154 static void ChipsetFlashSetup(void)
160 printk_debug("ChipsetFlashSetup: Start\n");
161 for (i = 0; i < FlashInitTableLen; i++) {
162 if (FlashInitTable[i].fType != FLASH_TYPE_NONE) {
163 printk_debug("Enable CS%d\n", i);
164 /* we need to configure the memory/IO mask */
165 msr = rdmsr(FlashPort[i]);
166 msr.hi = 0; /* start with the "enabled" bit clear */
167 if (FlashInitTable[i].fType == FLASH_TYPE_NAND)
168 msr.hi |= 0x00000002;
170 msr.hi &= ~0x00000002;
171 if (FlashInitTable[i].fInterface == FLASH_IF_MEM)
172 msr.hi |= 0x00000004;
174 msr.hi &= ~0x00000004;
175 msr.hi |= FlashInitTable[i].fMask;
176 printk_debug("MSR(0x%08X, %08X_%08X)\n", FlashPort[i],
178 wrmsr(FlashPort[i], msr);
180 /* now write-enable the device */
181 msr = rdmsr(MDD_NORF_CNTRL);
183 printk_debug("MSR(0x%08X, %08X_%08X)\n", MDD_NORF_CNTRL,
185 wrmsr(MDD_NORF_CNTRL, msr);
187 /* update the number enabled */
192 printk_debug("ChipsetFlashSetup: Finish\n");
196 /* ***************************************************************************/
198 /* * enable_ide_nand_flash_header */
199 /* Run after VSA init to enable the flash PCI device header */
201 /* ***************************************************************************/
202 static void enable_ide_nand_flash_header()
204 /* Tell VSA to use FLASH PCI header. Not IDE header. */
205 outl(0x80007A40, 0xCF8);
206 outl(0xDEADBEEF, 0xCFC);
209 #define RTC_CENTURY 0x32
210 #define RTC_DOMA 0x3D
211 #define RTC_MONA 0x3E
213 static void lpc_init(struct southbridge_amd_cs5536_config *sb)
217 if (sb->lpc_serirq_enable) {
218 msr.lo = sb->lpc_serirq_enable;
220 wrmsr(MDD_IRQM_LPC, msr);
221 if (sb->lpc_serirq_polarity) {
222 msr.lo = sb->lpc_serirq_polarity << 16;
223 msr.lo |= (sb->lpc_serirq_mode << 6) | (1 << 7); /* enable */
225 wrmsr(MDD_LPC_SIRQ, msr);
229 /* Allow DMA from LPC */
230 msr = rdmsr(MDD_DMA_MAP);
232 wrmsr(MDD_DMA_MAP, msr);
234 /* enable the RTC/CMOS century byte at address 32h */
235 msr = rdmsr(MDD_RTC_CENTURY_OFFSET);
236 msr.lo = RTC_CENTURY;
237 wrmsr(MDD_RTC_CENTURY_OFFSET, msr);
239 /* enable the RTC/CMOS day of month and month alarms */
240 msr = rdmsr(MDD_RTC_DOMA_IND);
242 wrmsr(MDD_RTC_DOMA_IND, msr);
244 msr = rdmsr(MDD_RTC_MONA_IND);
246 wrmsr(MDD_RTC_MONA_IND, msr);
253 static void uarts_init(struct southbridge_amd_cs5536_config *sb)
260 dev = dev_find_device(PCI_VENDOR_ID_AMD,
261 PCI_DEVICE_ID_AMD_CS5536_ISA, 0);
262 gpio_addr = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
263 gpio_addr &= ~1; /* clear IO bit */
264 printk_debug("GPIO_ADDR: %08X\n", gpio_addr);
266 /* This could be extended to support IR modes */
269 if (sb->com1_enable) {
270 /* Set the address */
271 switch (sb->com1_address) {
288 msr = rdmsr(MDD_LEG_IO);
289 msr.lo |= addr << 16;
290 wrmsr(MDD_LEG_IO, msr);
293 msr = rdmsr(MDD_IRQM_YHIGH);
294 msr.lo |= sb->com1_irq << 24;
295 wrmsr(MDD_IRQM_YHIGH, msr);
297 /* GPIO8 - UART1_TX */
298 /* Set: Output Enable (0x4) */
299 outl(GPIOL_8_SET, gpio_addr + GPIOL_OUTPUT_ENABLE);
300 /* Set: OUTAUX1 Select (0x10) */
301 outl(GPIOL_8_SET, gpio_addr + GPIOL_OUT_AUX1_SELECT);
303 /* GPIO8 - UART1_RX */
304 /* Set: Input Enable (0x20) */
305 outl(GPIOL_9_SET, gpio_addr + GPIOL_INPUT_ENABLE);
306 /* Set: INAUX1 Select (0x34) */
307 outl(GPIOL_9_SET, gpio_addr + GPIOL_IN_AUX1_SELECT);
309 /* Set: GPIO 8 + 9 Pull Up (0x18) */
310 outl(GPIOL_8_SET | GPIOL_9_SET,
311 gpio_addr + GPIOL_PULLUP_ENABLE);
314 /* Bit 1 = device enable Bit 4 = allow access to the upper banks */
315 msr.lo = (1 << 4) | (1 << 1);
317 wrmsr(MDD_UART1_CONF, msr);
320 /* Reset and disable COM1 */
321 printk_err("Not disabling COM1 due to a bug ...\n");
322 /* for now, don't do this! */
324 msr = rdmsr(MDD_UART1_CONF);
326 wrmsr(MDD_UART1_CONF, msr);
327 msr.lo = 0; // disabled
328 wrmsr(MDD_UART1_CONF, msr);
330 /* Disable the IRQ */
331 msr = rdmsr(MDD_LEG_IO);
332 msr.lo |= ~(0xF << 16);
333 wrmsr(MDD_LEG_IO, msr);
337 if (sb->com2_enable) {
338 switch (sb->com2_address) {
355 msr = rdmsr(MDD_LEG_IO);
356 msr.lo |= addr << 20;
357 wrmsr(MDD_LEG_IO, msr);
360 msr = rdmsr(MDD_IRQM_YHIGH);
361 msr.lo |= sb->com2_irq << 28;
362 wrmsr(MDD_IRQM_YHIGH, msr);
364 /* GPIO3 - UART2_RX */
365 /* Set: Output Enable (0x4) */
366 outl(GPIOL_3_SET, gpio_addr + GPIOL_OUTPUT_ENABLE);
367 /* Set: OUTAUX1 Select (0x10) */
368 outl(GPIOL_3_SET, gpio_addr + GPIOL_OUT_AUX1_SELECT);
370 /* GPIO4 - UART2_TX */
371 /* Set: Input Enable (0x20) */
372 outl(GPIOL_4_SET, gpio_addr + GPIOL_INPUT_ENABLE);
373 /* Set: INAUX1 Select (0x34) */
374 outl(GPIOL_4_SET, gpio_addr + GPIOL_IN_AUX1_SELECT);
376 /* Set: GPIO 3 + 3 Pull Up (0x18) */
377 outl(GPIOL_3_SET | GPIOL_4_SET,
378 gpio_addr + GPIOL_PULLUP_ENABLE);
381 /* Bit 1 = device enable Bit 4 = allow access to the upper banks */
382 msr.lo = (1 << 4) | (1 << 1);
384 wrmsr(MDD_UART2_CONF, msr);
387 /* Reset and disable COM2 */
388 msr = rdmsr(MDD_UART2_CONF);
390 wrmsr(MDD_UART2_CONF, msr);
391 msr.lo = 0; // disabled
392 wrmsr(MDD_UART2_CONF, msr);
394 /* Disable the IRQ */
395 msr = rdmsr(MDD_LEG_IO);
396 msr.lo |= ~(0xF << 20);
397 wrmsr(MDD_LEG_IO, msr);
401 #define HCCPARAMS 0x08
403 #define USB_HCCPW_SET (1 << 1)
405 #define APU_SET (1 << 15)
407 #define PMUX_HOST 0x02
408 #define PMUX_DEVICE 0x03
409 #define PUEN_SET (1 << 2)
410 #define UDCDEVCTL 0x404
411 #define UDC_SD_SET (1 << 10)
413 #define PADEN_SET (1 << 7)
415 static void enable_USB_port4(struct southbridge_amd_cs5536_config *sb)
421 dev = dev_find_device(PCI_VENDOR_ID_AMD,
422 PCI_DEVICE_ID_AMD_CS5536_EHCI, 0);
425 /* Serial Short Detect Enable */
426 msr = rdmsr(USB2_SB_GLD_MSR_CONF);
427 msr.hi |= USB2_UPPER_SSDEN_SET;
428 wrmsr(USB2_SB_GLD_MSR_CONF, msr);
430 /* write to clear diag register */
431 wrmsr(USB2_SB_GLD_MSR_DIAG, rdmsr(USB2_SB_GLD_MSR_DIAG));
433 bar = (uint32_t *) pci_read_config32(dev, PCI_BASE_ADDRESS_0);
435 /* Make HCCPARAMS writeable */
436 *(bar + IPREG04) |= USB_HCCPW_SET;
438 /* ; EECP=50h, IST=01h, ASPC=1 */
439 *(bar + HCCPARAMS) = 0x00005012;
442 dev = dev_find_device(PCI_VENDOR_ID_AMD,
443 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
445 bar = (uint32_t *) pci_read_config32(dev, PCI_BASE_ADDRESS_0);
447 *(bar + UOCMUX) &= PUEN_SET;
449 /* Host or Device? */
450 if (sb->enable_USBP4_device) {
451 *(bar + UOCMUX) |= PMUX_DEVICE;
453 *(bar + UOCMUX) |= PMUX_HOST;
456 /* Overcurrent configuration */
457 if (sb->enable_USBP4_overcurrent) {
458 *(bar + UOCCAP) |= sb->enable_USBP4_overcurrent;
462 /* PBz#6466: If the UOC(OTG) device, port 4, is configured as a device,
463 * then perform the following sequence:
465 * - set SD bit in DEVCTRL udc register
466 * - set PADEN (former OTGPADEN) bit in uoc register
467 * - set APU bit in uoc register */
468 if (sb->enable_USBP4_device) {
469 dev = dev_find_device(PCI_VENDOR_ID_AMD,
470 PCI_DEVICE_ID_AMD_CS5536_UDC, 0);
472 bar = (uint32_t *) pci_read_config32(dev,
474 *(bar + UDCDEVCTL) |= UDC_SD_SET;
478 dev = dev_find_device(PCI_VENDOR_ID_AMD,
479 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
481 bar = (uint32_t *) pci_read_config32(dev,
483 *(bar + UOCCTL) |= PADEN_SET;
484 *(bar + UOCCAP) |= APU_SET;
488 /* Disable virtual PCI UDC and OTG headers */
489 dev = dev_find_device(PCI_VENDOR_ID_AMD,
490 PCI_DEVICE_ID_AMD_CS5536_UDC, 0);
492 pci_write_config8(dev, 0x7C, 0xDEADBEEF);
495 dev = dev_find_device(PCI_VENDOR_ID_AMD,
496 PCI_DEVICE_ID_AMD_CS5536_OTG, 0);
498 pci_write_config8(dev, 0x7C, 0xDEADBEEF);
502 /* ***************************************************************************/
505 /* Called from northbridge init (Pre-VSA). */
507 /* ***************************************************************************/
508 void chipsetinit(void)
513 struct southbridge_amd_cs5536_config *sb =
514 (struct southbridge_amd_cs5536_config *)dev->chip_info;
517 outb(P80_CHIPSET_INIT, 0x80);
519 /* we hope NEVER to be in linuxbios when S3 resumes
520 if (! IsS3Resume()) */
522 struct acpiinit *aci = acpi_init_table;
523 for (; aci->ioreg; aci++) {
524 outl(aci->regdata, aci->ioreg);
532 outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
533 outl(GPIOL_2_SET, GPIO_IO_BASE + GPIOL_IN_AUX1_SELECT);
535 /* Allow IO read and writes during a ATA DMA operation. */
536 /* This could be done in the HD rom but do it here for easier debugging. */
537 msrnum = ATA_SB_GLD_MSR_ERR;
542 /* Enable Post Primary IDE. */
543 msrnum = GLPCI_SB_CTRL;
545 msr.lo |= GLPCI_CRTL_PPIDE_SET;
548 csi = SB_MASTER_CONF_TABLE;
549 for (; csi->msrnum; csi++) {
550 msr.lo = csi->msr.lo;
551 msr.hi = csi->msr.hi;
552 wrmsr(csi->msrnum, msr); // MSR - see table above
555 /* Flash BAR size Setup */
556 printk_err("%sDoing ChipsetFlashSetup()\n",
557 sb->enable_ide_nand_flash == 1 ? "" : "Not ");
558 if (sb->enable_ide_nand_flash == 1)
562 /* Set up Hardware Clock Gating */
565 csi = CS5536_CLOCK_GATING_TABLE;
566 for (; csi->msrnum; csi++) {
567 msr.lo = csi->msr.lo;
568 msr.hi = csi->msr.hi;
569 wrmsr(csi->msrnum, msr); // MSR - see table above
574 static void southbridge_init(struct device *dev)
576 struct southbridge_amd_cs5536_config *sb =
577 (struct southbridge_amd_cs5536_config *)dev->chip_info;
580 * struct device *gpiodev;
581 * unsigned short gpiobase = MDD_GPIO;
584 printk_err("cs5536: %s\n", __FUNCTION__);
589 if (sb->enable_gpio_int_route) {
590 vrWrite((VRC_MISCELLANEOUS << 8) + PCI_INT_AB,
591 (sb->enable_gpio_int_route & 0xFFFF));
592 vrWrite((VRC_MISCELLANEOUS << 8) + PCI_INT_CD,
593 (sb->enable_gpio_int_route >> 16));
596 printk_err("cs5536: %s: enable_ide_nand_flash is %d\n", __FUNCTION__,
597 sb->enable_ide_nand_flash);
598 if (sb->enable_ide_nand_flash == 1) {
599 enable_ide_nand_flash_header();
602 enable_USB_port4(sb);
604 /* disable unwanted virtual PCI devices */
605 for (i = 0; (i < MAX_UNWANTED_VPCI) && (0 != sb->unwanted_vpci[i]); i++) {
606 printk_debug("Disabling VPCI device: 0x%08X\n",
607 sb->unwanted_vpci[i]);
608 outl(sb->unwanted_vpci[i] + 0x7C, 0xCF8);
609 outl(0xDEADBEEF, 0xCFC);
613 static void southbridge_enable(struct device *dev)
615 printk_err("cs5536: %s: dev is %p\n", __FUNCTION__, dev);
619 static void cs5536_pci_dev_enable_resources(device_t dev)
621 printk_err("cs5536: %s()\n", __FUNCTION__);
622 pci_dev_enable_resources(dev);
623 enable_childrens_resources(dev);
626 static struct device_operations southbridge_ops = {
627 .read_resources = pci_dev_read_resources,
628 .set_resources = pci_dev_set_resources,
629 .enable_resources = cs5536_pci_dev_enable_resources,
630 .init = southbridge_init,
631 // .enable = southbridge_enable,
632 .scan_bus = scan_static_bus,
635 static struct pci_driver cs5536_pci_driver __pci_driver = {
636 .ops = &southbridge_ops,
637 .vendor = PCI_VENDOR_ID_AMD,
638 .device = PCI_DEVICE_ID_AMD_CS5536_ISA
641 struct chip_operations southbridge_amd_cs5536_ops = {
642 CHIP_NAME("AMD Geode CS5536 Southbridge")
643 /* This is only called when this device is listed in the
644 * static device tree.
646 .enable_dev = southbridge_enable,