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 as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <console/console.h>
24 #include <device/device.h>
25 #include <device/pci.h>
26 #include <device/pci_ids.h>
31 #include <cpu/amd/lxdef.h>
32 #include <cpu/x86/msr.h>
33 #include <cpu/x86/cache.h>
34 #include <cpu/amd/vr.h>
37 #include "northbridge.h"
38 #include "../../../southbridge/amd/cs5536/cs5536.h"
41 /* here is programming for the various MSRs.*/
42 #define IM_QWAIT 0x100000
44 #define DMCF_WRITE_SERIALIZE_REQUEST (2<<12) /* 2 outstanding */ /* in high */
45 #define DMCF_SERIAL_LOAD_MISSES (2) /* enabled */
47 /* these are the 8-bit attributes for controlling RCONF registers */
48 #define CACHE_DISABLE (1<<0)
49 #define WRITE_ALLOCATE (1<<1)
50 #define WRITE_PROTECT (1<<2)
51 #define WRITE_THROUGH (1<<3)
52 #define WRITE_COMBINE (1<<4)
53 #define WRITE_SERIALIZE (1<<5)
55 /* ram has none of this stuff */
56 #define RAM_PROPERTIES (0)
57 #define DEVICE_PROPERTIES (WRITE_SERIALIZE|CACHE_DISABLE)
58 #define ROM_PROPERTIES (WRITE_SERIALIZE|WRITE_PROTECT|CACHE_DISABLE)
59 #define MSR_WS_CD_DEFAULT (0x21212121)
61 /* 1810-1817 give you 8 registers with which to program protection regions */
62 /* the are region configuration range registers, or RRCF */
63 /* in msr terms, the are a straight base, top address assign, since they are 4k aligned. */
64 /* so no left-shift needed for top or base */
65 #define RRCF_LOW(base,properties) (base|(1<<8)|properties)
66 #define RRCF_LOW_CD(base) RRCF_LOW(base, CACHE_DISABLE)
68 /* build initializer for P2D MSR */
69 #define P2D_BM(msr, pdid1, bizarro, pbase, pmask) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(pbase>>24), .lo=(pbase<<8)|pmask}}
70 #define P2D_BMO(msr, pdid1, bizarro, poffset, pbase, pmask) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(poffset<<8)|(pbase>>24), .lo=(pbase<<8)|pmask}}
71 #define P2D_R(msr, pdid1, bizarro, pmax, pmin) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(pmax>>12), .lo=(pmax<<20)|pmin}}
72 #define P2D_RO(msr, pdid1, bizarro, poffset, pmax, pmin) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(poffset<<8)|(pmax>>12), .lo=(pmax<<20)|pmin}}
73 #define P2D_SC(msr, pdid1, bizarro, wen, ren,pscbase) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(wen), .lo=(ren<<16)|(pscbase>>18)}}
74 #define IOD_BM(msr, pdid1, bizarro, ibase, imask) {msr, {.hi=(pdid1<<29)|(bizarro<<28)|(ibase>>12), .lo=(ibase<<20)|imask}}
75 #define IOD_SC(msr, pdid1, bizarro, en, wen, ren, ibase) {msr, {.hi=(pdid1<<29)|(bizarro<<28), .lo=(en<<24)|(wen<<21)|(ren<<20)|(ibase<<3)}}
77 #define BRIDGE_IO_MASK (IORESOURCE_IO | IORESOURCE_MEM)
79 extern void graphics_init(void);
80 extern void cpubug(void);
81 extern void chipsetinit(void);
82 extern uint32_t get_systop(void);
84 void northbridge_init_early(void);
85 void setup_realmode_idt(void);
86 void do_vsmbios(void);
94 .hi = 0,.lo = IM_QWAIT}}, {
96 .hi = DMCF_WRITE_SERIALIZE_REQUEST,.lo =
97 DMCF_SERIAL_LOAD_MISSES}},
98 /* 1808 will be done down below, so we have to do 180a->1817 (well, 1813 really) */
99 /* for 180a, for now, we assume VSM will configure it */
100 /* 180b is left at reset value,a0000-bffff is non-cacheable */
101 /* 180c, c0000-dffff is set to write serialize and non-cachable */
102 /* oops, 180c will be set by cpu bug handling in cpubug.c */
103 //{0x180c, {.hi = MSR_WS_CD_DEFAULT, .lo = MSR_WS_CD_DEFAULT}},
104 /* 180d is left at default, e0000-fffff is non-cached */
105 /* we will assume 180e, the ssm region configuration, is left at default or set by VSM */
106 /* we will not set 0x180f, the DMM,yet */
107 //{0x1810, {.hi=0xee7ff000, .lo=RRCF_LOW(0xee000000, WRITE_COMBINE|CACHE_DISABLE)}},
108 //{0x1811, {.hi = 0xefffb000, .lo = RRCF_LOW_CD(0xefff8000)}},
109 //{0x1812, {.hi = 0xefff7000, .lo = RRCF_LOW_CD(0xefff4000)}},
110 //{0x1813, {.hi = 0xefff3000, .lo = RRCF_LOW_CD(0xefff0000)}},
111 /* now for GLPCI routing */
113 P2D_BM(MSR_GLIU0_BASE1, 0x1, 0x0, 0x0, 0xfff80),
114 P2D_BM(MSR_GLIU0_BASE2, 0x1, 0x0, 0x80000, 0xfffe0),
115 P2D_SC(MSR_GLIU0_SHADOW, 0x1, 0x0, 0x0, 0xff03, 0xC0000),
117 P2D_BM(MSR_GLIU1_BASE1, 0x1, 0x0, 0x0, 0xfff80),
118 P2D_BM(MSR_GLIU1_BASE2, 0x1, 0x0, 0x80000, 0xfffe0),
119 P2D_SC(MSR_GLIU1_SHADOW, 0x1, 0x0, 0x0, 0xff03, 0xC0000), {
123 /* Print the platform configuration - do before PCI init or it will not
126 void print_conf(void)
128 #if DEFAULT_CONSOLE_LOGLEVEL >= BIOS_ERR
133 int cpu_msr_defs[] = { CPU_BC_L2_CONF, CPU_IM_CONFIG, CPU_DM_CONFIG0,
134 CPU_RCONF_DEFAULT, CPU_RCONF_BYPASS, CPU_RCONF_A0_BF,
135 CPU_RCONF_C0_DF, CPU_RCONF_E0_FF, CPU_RCONF_SMM, CPU_RCONF_DMM,
136 GLCP_DELAY_CONTROLS, GL_END
139 int gliu0_msr_defs[] = { MSR_GLIU0_BASE1, MSR_GLIU0_BASE2,
140 MSR_GLIU0_BASE4, MSR_GLIU0_BASE5, MSR_GLIU0_BASE6,
141 GLIU0_P2D_BMO_0, GLIU0_P2D_BMO_1, MSR_GLIU0_SYSMEM,
142 GLIU0_P2D_RO_0, GLIU0_P2D_RO_1, GLIU0_P2D_RO_2,
143 MSR_GLIU0_SHADOW, GLIU0_IOD_BM_0, GLIU0_IOD_BM_1,
144 GLIU0_IOD_BM_2, GLIU0_IOD_SC_0, GLIU0_IOD_SC_1, GLIU0_IOD_SC_2,
145 GLIU0_IOD_SC_3, GLIU0_IOD_SC_4, GLIU0_IOD_SC_5,
146 GLIU0_GLD_MSR_COH, GL_END
149 int gliu1_msr_defs[] = { MSR_GLIU1_BASE1, MSR_GLIU1_BASE2,
150 MSR_GLIU1_BASE3, MSR_GLIU1_BASE4, MSR_GLIU1_BASE5,
151 MSR_GLIU1_BASE6, MSR_GLIU1_BASE7, MSR_GLIU1_BASE8,
152 MSR_GLIU1_BASE9, MSR_GLIU1_BASE10, GLIU1_P2D_R_0,
153 GLIU1_P2D_R_1, GLIU1_P2D_R_2, GLIU1_P2D_R_3, MSR_GLIU1_SHADOW,
154 GLIU1_IOD_BM_0, GLIU1_IOD_BM_1, GLIU1_IOD_BM_2, GLIU1_IOD_SC_0,
155 GLIU1_IOD_SC_1, GLIU1_IOD_SC_2, GLIU1_IOD_SC_3,
156 GLIU1_GLD_MSR_COH, GL_END
159 int rconf_msr[] = { CPU_RCONF0, CPU_RCONF1, CPU_RCONF2, CPU_RCONF3,
160 CPU_RCONF4, CPU_RCONF5, CPU_RCONF6, CPU_RCONF7, GL_END
163 int cs5536_msr[] = { MDD_LBAR_GPIO, MDD_LBAR_FLSH0, MDD_LBAR_FLSH1,
164 MDD_LEG_IO, MDD_PIN_OPT, MDD_IRQM_ZLOW, MDD_IRQM_ZHIGH,
165 MDD_IRQM_PRIM, GL_END
168 int pci_msr[] = { GLPCI_CTRL, GLPCI_ARB, GLPCI_REN, GLPCI_A0_BF,
169 GLPCI_C0_DF, GLPCI_E0_FF, GLPCI_RC0, GLPCI_RC1, GLPCI_RC2,
170 GLPCI_RC3, GLPCI_ExtMSR, GLPCI_SPARE, GL_END
173 int dma_msr[] = { MDD_DMA_MAP, MDD_DMA_SHAD1, MDD_DMA_SHAD2,
174 MDD_DMA_SHAD3, MDD_DMA_SHAD4, MDD_DMA_SHAD5, MDD_DMA_SHAD6,
175 MDD_DMA_SHAD7, MDD_DMA_SHAD8, MDD_DMA_SHAD9, GL_END
178 printk_debug("---------- CPU ------------\n");
180 for (i = 0; cpu_msr_defs[i] != GL_END; i++) {
181 msr = rdmsr(cpu_msr_defs[i]);
182 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n",
183 cpu_msr_defs[i], msr.hi, msr.lo);
186 printk_debug("---------- GLIU 0 ------------\n");
188 for (i = 0; gliu0_msr_defs[i] != GL_END; i++) {
189 msr = rdmsr(gliu0_msr_defs[i]);
190 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n",
191 gliu0_msr_defs[i], msr.hi, msr.lo);
194 printk_debug("---------- GLIU 1 ------------\n");
196 for (i = 0; gliu1_msr_defs[i] != GL_END; i++) {
197 msr = rdmsr(gliu1_msr_defs[i]);
198 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n",
199 gliu1_msr_defs[i], msr.hi, msr.lo);
202 printk_debug("---------- RCONF ------------\n");
204 for (i = 0; rconf_msr[i] != GL_END; i++) {
205 msr = rdmsr(rconf_msr[i]);
206 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", rconf_msr[i],
210 printk_debug("---------- VARIA ------------\n");
211 msr = rdmsr(0x51300010);
212 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", 0x51300010, msr.hi,
215 msr = rdmsr(0x51400015);
216 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", 0x51400015, msr.hi,
219 printk_debug("---------- DIVIL IRQ ------------\n");
220 msr = rdmsr(MDD_IRQM_YLOW);
221 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", MDD_IRQM_YLOW, msr.hi,
223 msr = rdmsr(MDD_IRQM_YHIGH);
224 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", MDD_IRQM_YHIGH,
226 msr = rdmsr(MDD_IRQM_ZLOW);
227 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", MDD_IRQM_ZLOW, msr.hi,
229 msr = rdmsr(MDD_IRQM_ZHIGH);
230 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", MDD_IRQM_ZHIGH,
233 printk_debug("---------- PCI ------------\n");
235 for (i = 0; pci_msr[i] != GL_END; i++) {
236 msr = rdmsr(pci_msr[i]);
237 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", pci_msr[i],
241 printk_debug("---------- LPC/UART DMA ------------\n");
243 for (i = 0; dma_msr[i] != GL_END; i++) {
244 msr = rdmsr(dma_msr[i]);
245 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", dma_msr[i],
249 printk_debug("---------- CS5536 ------------\n");
251 for (i = 0; cs5536_msr[i] != GL_END; i++) {
252 msr = rdmsr(cs5536_msr[i]);
253 printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", cs5536_msr[i],
257 iol = inl(GPIO_IO_BASE + GPIOL_INPUT_ENABLE);
258 printk_debug("IOR 0x%08X is now 0x%08X\n",
259 GPIO_IO_BASE + GPIOL_INPUT_ENABLE, iol);
260 iol = inl(GPIOL_EVENTS_ENABLE);
261 printk_debug("IOR 0x%08X is now 0x%08X\n",
262 GPIO_IO_BASE + GPIOL_EVENTS_ENABLE, iol);
263 iol = inl(GPIOL_INPUT_INVERT_ENABLE);
264 printk_debug("IOR 0x%08X is now 0x%08X\n",
265 GPIO_IO_BASE + GPIOL_INPUT_INVERT_ENABLE, iol);
266 iol = inl(GPIO_MAPPER_X);
267 printk_debug("IOR 0x%08X is now 0x%08X\n", GPIO_IO_BASE + GPIO_MAPPER_X,
269 #endif //DEFAULT_CONSOLE_LOGLEVEL >= BIOS_ERR
272 /* todo: add a resource record. We don't do this here because this may be called when
273 * very little of the platform is actually working.
281 /* Get the RAM size from the memory controller as calculated and set by auto_size_dimm() */
282 msr = rdmsr(MC_CF07_DATA);
283 printk_debug("sizeram: _MSR MC_CF07_DATA: %08x:%08x\n", msr.hi, msr.lo);
288 if ((dimm & 7) != 7) {
289 sizem = 4 << ((dimm >> 12) & 0x0F); /* 1:8MB, 2:16MB, 3:32MB, 4:64MB, ... 7:512MB, 8:1GB */
295 if ((dimm & 7) != 7) {
296 sizem += 4 << ((dimm >> 12) & 0x0F); /* 1:8MB, 2:16MB, 3:32MB, 4:64MB, ... 7:512MB, 8:1GB */
299 printk_debug("sizeram: sizem 0x%xMB\n", sizem);
303 static void enable_shadow(device_t dev)
307 static void northbridge_init(device_t dev)
311 printk_spew(">> Entering northbridge.c: %s\n", __func__);
317 //msr = rdmsr(MSR_GLIU0_SHADOW);
322 //printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", MSR_GLIU0_SHADOW, msr.hi, msr.lo);
323 //printk_debug("MSR 0x%08X is now 0x%08X:0x%08X\n", MSR_GLIU1_SHADOW, msr.hi, msr.lo);
326 void northbridge_set_resources(struct device *dev)
328 struct resource *resource, *last;
332 last = &dev->resource[dev->resources];
334 for (resource = &dev->resource[0]; resource < last; resource++) {
336 // andrei: do not change the base address, it will make the VSA virtual registers unusable
337 //pci_set_resource(dev, resource);
338 // FIXME: static allocation may conflict with dynamic mappings!
341 for (link = 0; link < dev->links; link++) {
343 bus = &dev->link[link];
346 ("my_dev_set_resources: assign_resources %d\n",
348 assign_resources(bus);
352 /* set a default latency timer */
353 pci_write_config8(dev, PCI_LATENCY_TIMER, 0x40);
355 /* set a default secondary latency timer */
356 if ((dev->hdr_type & 0x7f) == PCI_HEADER_TYPE_BRIDGE) {
357 pci_write_config8(dev, PCI_SEC_LATENCY_TIMER, 0x40);
360 /* zero the irq settings */
361 line = pci_read_config8(dev, PCI_INTERRUPT_PIN);
363 pci_write_config8(dev, PCI_INTERRUPT_LINE, 0);
366 /* set the cache line size, so far 64 bytes is good for everyone */
367 pci_write_config8(dev, PCI_CACHE_LINE_SIZE, 64 >> 2);
370 static struct device_operations northbridge_operations = {
371 .read_resources = pci_dev_read_resources,
372 .set_resources = northbridge_set_resources,
373 .enable_resources = pci_dev_enable_resources,
374 .init = northbridge_init,
379 static const struct pci_driver northbridge_driver __pci_driver = {
380 .ops = &northbridge_operations,
381 .vendor = PCI_VENDOR_ID_AMD,
382 .device = PCI_DEVICE_ID_AMD_LXBRIDGE,
385 static void pci_domain_read_resources(device_t dev)
387 struct resource *resource;
388 printk_spew(">> Entering northbridge.c: %s\n", __func__);
390 /* Initialize the system wide io space constraints */
391 resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
392 resource->limit = 0xffffUL;
394 IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
396 /* Initialize the system wide memory resources constraints */
397 resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
398 resource->limit = 0xffffffffULL;
400 IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
403 static void ram_resource(device_t dev, unsigned long index,
404 unsigned long basek, unsigned long sizek)
406 struct resource *resource;
411 resource = new_resource(dev, index);
412 resource->base = ((resource_t) basek) << 10;
413 resource->size = ((resource_t) sizek) << 10;
414 resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE |
415 IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
418 static void pci_domain_set_resources(device_t dev)
423 printk_spew(">> Entering northbridge.c: %s\n", __func__);
425 mc_dev = dev->link[0].children;
427 /* Report the memory regions */
429 ram_resource(dev, idx++, 0, 640);
430 ram_resource(dev, idx++, 1024, (get_systop() - 0x100000) / 1024); // Systop - 1 MB -> KB
433 assign_resources(&dev->link[0]);
436 static void pci_domain_enable(device_t dev)
439 printk_spew(">> Entering northbridge.c: %s\n", __func__);
441 // do this here for now -- this chip really breaks our device model
442 northbridge_init_early();
446 setup_realmode_idt();
448 printk_debug("Before VSA:\n");
451 do_vsmbios(); // do the magic stuff here, so prepare your tambourine ;)
453 printk_debug("After VSA:\n");
460 static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
462 printk_spew(">> Entering northbridge.c: %s\n", __func__);
464 max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
468 static struct device_operations pci_domain_ops = {
469 .read_resources = pci_domain_read_resources,
470 .set_resources = pci_domain_set_resources,
471 .enable_resources = enable_childrens_resources,
472 .scan_bus = pci_domain_scan_bus,
473 .enable = pci_domain_enable,
476 static void cpu_bus_init(device_t dev)
478 printk_spew(">> Entering northbridge.c: %s\n", __func__);
480 initialize_cpus(&dev->link[0]);
483 static void cpu_bus_noop(device_t dev)
487 static struct device_operations cpu_bus_ops = {
488 .read_resources = cpu_bus_noop,
489 .set_resources = cpu_bus_noop,
490 .enable_resources = cpu_bus_noop,
491 .init = cpu_bus_init,
495 static void enable_dev(struct device *dev)
497 printk_spew(">> Entering northbridge.c: %s with path %d\n",
498 __func__, dev->path.type);
500 /* Set the operations if it is a special bus type */
501 if (dev->path.type == DEVICE_PATH_PCI_DOMAIN)
502 dev->ops = &pci_domain_ops;
503 else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER)
504 dev->ops = &cpu_bus_ops;
507 struct chip_operations northbridge_amd_lx_ops = {
508 CHIP_NAME("AMD LX Northbridge")
509 .enable_dev = enable_dev,