Winbond W83627HF: Use existing functions instead of open-coding.
[coreboot.git] / src / mainboard / supermicro / h8dme / romstage.c
1 /*
2  * This file is part of the coreboot project.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
17  */
18
19 #if CONFIG_K8_REV_F_SUPPORT == 1
20 #define K8_REV_F_SUPPORT_F0_F1_WORKAROUND 0
21 #endif
22
23 #include <stdint.h>
24 #include <string.h>
25 #include <device/pci_def.h>
26 #include <device/pci_ids.h>
27 #include <arch/io.h>
28 #include <device/pnp_def.h>
29 #include <arch/romcc_io.h>
30 #include <cpu/x86/lapic.h>
31 #include <pc80/mc146818rtc.h>
32 #include <console/console.h>
33 #include <lib.h>
34 #include <spd.h>
35 #include <cpu/amd/model_fxx_rev.h>
36 #include "southbridge/nvidia/mcp55/mcp55_early_smbus.c" // for enable the FAN
37 #include "northbridge/amd/amdk8/raminit.h"
38 #include "cpu/amd/model_fxx/apic_timer.c"
39 #include "lib/delay.c"
40 #include "cpu/x86/lapic/boot_cpu.c"
41 #include "northbridge/amd/amdk8/reset_test.c"
42 #include "superio/winbond/w83627hf/w83627hf_early_serial.c"
43 #include "superio/winbond/w83627hf/w83627hf_early_init.c"
44 #include "cpu/x86/bist.h"
45 #include "northbridge/amd/amdk8/debug.c"
46 #include "cpu/x86/mtrr/earlymtrr.c"
47 #include "northbridge/amd/amdk8/setup_resource_map.c"
48 #include "southbridge/nvidia/mcp55/mcp55_early_ctrl.c"
49
50 #define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
51 #define DUMMY_DEV PNP_DEV(0x2e, 0)
52
53 static void memreset(int controllers, const struct mem_controller *ctrl) { }
54
55 static inline void dump_smbus_registers(void)
56 {
57         u32 device;
58
59         print_debug("\n");
60         for (device = 1; device < 0x80; device++) {
61                 int j;
62                 if (smbus_read_byte(device, 0) < 0)
63                         continue;
64                 printk(BIOS_DEBUG, "smbus: %02x", device);
65                 for (j = 0; j < 256; j++) {
66                         int status;
67                         unsigned char byte;
68                         status = smbus_read_byte(device, j);
69                         if (status < 0) {
70                                 break;
71                         }
72                         if ((j & 0xf) == 0) {
73                                 printk(BIOS_DEBUG, "\n%02x: ", j);
74                         }
75                         byte = status & 0xff;
76                         printk(BIOS_DEBUG, "%02x ", byte);
77                 }
78                 print_debug("\n");
79         }
80 }
81
82 static inline void activate_spd_rom(const struct mem_controller *ctrl)
83 {
84 #if 0
85 /* We don't do any switching yet. */
86 #define SMBUS_SWITCH1 0x48
87 #define SMBUS_SWITCH2 0x49
88         unsigned device=(ctrl->channel0[0])>>8;
89         smbus_send_byte(SMBUS_SWITCH1, device);
90         smbus_send_byte(SMBUS_SWITCH2, (device >> 4) & 0x0f);
91 #endif
92 }
93
94 #if 0
95 static int smbus_send_byte_one(unsigned device, unsigned char val)
96 {
97         return do_smbus_send_byte(SMBUS1_IO_BASE, device, val);
98 }
99
100 static inline void change_i2c_mux(unsigned device)
101 {
102 #define SMBUS_SWITCH1 0x48
103 #define SMBUS_SWITHC2 0x49
104         smbus_send_byte(SMBUS_SWITCH1, device & 0x0f);
105         smbus_send_byte_one(SMBUS_SWITCH2, (device >> 4) & 0x0f);
106         int ret;
107         print_debug("change_i2c_mux i="); print_debug_hex8(device); print_debug("\n");
108         dump_smbus_registers();
109         ret = smbus_send_byte(SMBUS_SWITCH1, device);
110         print_debug("change_i2c_mux ret="); print_debug_hex32(ret); print_debug("\n");
111         dump_smbus_registers();
112         ret = smbus_send_byte_one(SMBUS_SWITCH2, device);
113         print_debug("change_i2c_mux ret="); print_debug_hex32(ret); print_debug("\n");
114         dump_smbus_registers();
115 }
116 #endif
117
118 static inline int spd_read_byte(unsigned device, unsigned address)
119 {
120         return smbus_read_byte(device, address);
121 }
122
123 #include "northbridge/amd/amdk8/amdk8_f.h"
124 #include "northbridge/amd/amdk8/incoherent_ht.c"
125 #include "northbridge/amd/amdk8/coherent_ht.c"
126 #include "northbridge/amd/amdk8/raminit_f.c"
127 #include "lib/generic_sdram.c"
128 #include "resourcemap.c"
129 #include "cpu/amd/dualcore/dualcore.c"
130 #include "southbridge/nvidia/mcp55/mcp55_early_setup_ss.h"
131 #include "southbridge/nvidia/mcp55/mcp55_early_setup_car.c"
132 #include "cpu/amd/car/post_cache_as_ram.c"
133 #include "cpu/amd/model_fxx/init_cpus.c"
134 #include "cpu/amd/model_fxx/fidvid.c"
135 #include "northbridge/amd/amdk8/early_ht.c"
136
137 static void sio_setup(void)
138 {
139         uint32_t dword;
140         uint8_t byte;
141
142         enable_smbus();
143 //      smbusx_write_byte(1, (0x58>>1), 0, 0x80); /* select bank0 */
144         smbusx_write_byte(1, (0x58 >> 1), 0xb1, 0xff);  /* set FAN ctrl to DC mode */
145
146         byte = pci_read_config8(PCI_DEV(0, MCP55_DEVN_BASE + 1, 0), 0x7b);
147         byte |= 0x20;
148         pci_write_config8(PCI_DEV(0, MCP55_DEVN_BASE + 1, 0), 0x7b, byte);
149
150         dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE + 1, 0), 0xa0);
151         dword |= (1 << 0);
152         pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE + 1, 0), 0xa0, dword);
153
154         dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE + 1, 0), 0xa4);
155         dword |= (1 << 16);
156         pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE + 1, 0), 0xa4, dword);
157 }
158
159 /* We have no idea where the SMBUS switch is. This doesn't do anything ATM. */
160 #define RC0 (2<<8)
161 #define RC1 (1<<8)
162
163 void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
164 {
165 /* The SPD is being read from the CPU1 (marked CPU2 on the board) and we
166    don't know how to switch the SMBus to decode the CPU0 SPDs. So, The
167    memory on each CPU must be an exact match.
168  */
169         static const uint16_t spd_addr[] = {
170                 // Node 0
171                 RC0 | DIMM0, RC0 | DIMM2,
172                 RC0 | DIMM4, RC0 | DIMM6,
173                 RC0 | DIMM1, RC0 | DIMM3,
174                 RC0 | DIMM5, RC0 | DIMM7,
175                 // Node 1
176                 RC1 | DIMM0, RC1 | DIMM2,
177                 RC1 | DIMM4, RC1 | DIMM6,
178                 RC1 | DIMM1, RC1 | DIMM3,
179                 RC1 | DIMM5, RC1 | DIMM7,
180         };
181
182         struct sys_info *sysinfo = (struct sys_info *)(CONFIG_DCACHE_RAM_BASE
183                 + CONFIG_DCACHE_RAM_SIZE - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE);
184         int needs_reset = 0;
185         unsigned bsp_apicid = 0;
186
187         if (!cpu_init_detectedx && boot_cpu()) {
188                 /* Nothing special needs to be done to find bus 0 */
189                 /* Allow the HT devices to be found */
190                 enumerate_ht_chain();
191                 sio_setup();
192         }
193
194         if (bist == 0)
195                 bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
196
197         w83627hf_set_clksel_48(DUMMY_DEV);
198         w83627hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
199
200         uart_init();
201         console_init();
202
203         /* Halt if there was a built in self test failure */
204         report_bist_failure(bist);
205
206         printk(BIOS_DEBUG, "*sysinfo range: [%p,%p]\n",sysinfo,sysinfo+1);
207
208         setup_mb_resource_map();
209
210         print_debug("bsp_apicid=");
211         print_debug_hex8(bsp_apicid);
212         print_debug("\n");
213
214 #if CONFIG_MEM_TRAIN_SEQ == 1
215         set_sysinfo_in_ram(0);  // in BSP so could hold all ap until sysinfo is in ram
216 #endif
217 /*      dump_smbus_registers(); */
218         setup_coherent_ht_domain();     // routing table and start other core0
219
220         wait_all_core0_started();
221 #if CONFIG_LOGICAL_CPUS==1
222         // It is said that we should start core1 after all core0 launched
223         /* becase optimize_link_coherent_ht is moved out from setup_coherent_ht_domain,
224          * So here need to make sure last core0 is started, esp for two way system,
225          * (there may be apic id conflicts in that case)
226          */
227         start_other_cores();
228         wait_all_other_cores_started(bsp_apicid);
229 #endif
230
231         /* it will set up chains and store link pair for optimization later */
232         ht_setup_chains_x(sysinfo);     // it will init sblnk and sbbusn, nodes, sbdn
233
234 #if CONFIG_SET_FIDVID
235         {
236                 msr_t msr;
237                 msr = rdmsr(0xc0010042);
238                 print_debug("begin msr fid, vid ");
239                 print_debug_hex32(msr.hi);
240                 print_debug_hex32(msr.lo);
241                 print_debug("\n");
242         }
243         enable_fid_change();
244         enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
245         init_fidvid_bsp(bsp_apicid);
246         // show final fid and vid
247         {
248                 msr_t msr;
249                 msr = rdmsr(0xc0010042);
250                 print_debug("end   msr fid, vid ");
251                 print_debug_hex32(msr.hi);
252                 print_debug_hex32(msr.lo);
253                 print_debug("\n");
254         }
255 #endif
256
257         init_timer(); /* Need to use TMICT to synconize FID/VID. */
258
259         needs_reset |= optimize_link_coherent_ht();
260         needs_reset |= optimize_link_incoherent_ht(sysinfo);
261         needs_reset |= mcp55_early_setup_x();
262
263         // fidvid change will issue one LDTSTOP and the HT change will be effective too
264         if (needs_reset) {
265                 print_info("ht reset -\n");
266                 soft_reset();
267         }
268
269         allow_all_aps_stop(bsp_apicid);
270
271         //It's the time to set ctrl in sysinfo now;
272         fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
273
274         enable_smbus();         /* enable in sio_setup */
275
276         /* all ap stopped? */
277
278         sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
279
280         post_cache_as_ram();    // bsp swtich stack to ram and copy sysinfo ram now
281 }