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arm: ls1021atwr: Add SD secure boot target
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1 /*
2  * Copyright 2014 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <common.h>
8 #include <i2c.h>
9 #include <asm/io.h>
10 #include <asm/arch/immap_ls102xa.h>
11 #include <asm/arch/clock.h>
12 #include <asm/arch/fsl_serdes.h>
13 #include <asm/arch/ls102xa_devdis.h>
14 #include <asm/arch/ls102xa_soc.h>
15 #include <asm/arch/ls102xa_sata.h>
16 #include <hwconfig.h>
17 #include <mmc.h>
18 #include <fsl_csu.h>
19 #include <fsl_esdhc.h>
20 #include <fsl_ifc.h>
21 #include <fsl_immap.h>
22 #include <netdev.h>
23 #include <fsl_mdio.h>
24 #include <tsec.h>
25 #include <fsl_sec.h>
26 #include <fsl_devdis.h>
27 #include <spl.h>
28 #include "../common/sleep.h"
29 #ifdef CONFIG_U_QE
30 #include <fsl_qe.h>
31 #endif
32 #include <fsl_validate.h>
33
34
35 DECLARE_GLOBAL_DATA_PTR;
36
37 #define VERSION_MASK            0x00FF
38 #define BANK_MASK               0x0001
39 #define CONFIG_RESET            0x1
40 #define INIT_RESET              0x1
41
42 #define CPLD_SET_MUX_SERDES     0x20
43 #define CPLD_SET_BOOT_BANK      0x40
44
45 #define BOOT_FROM_UPPER_BANK    0x0
46 #define BOOT_FROM_LOWER_BANK    0x1
47
48 #define LANEB_SATA              (0x01)
49 #define LANEB_SGMII1            (0x02)
50 #define LANEC_SGMII1            (0x04)
51 #define LANEC_PCIEX1            (0x08)
52 #define LANED_PCIEX2            (0x10)
53 #define LANED_SGMII2            (0x20)
54
55 #define MASK_LANE_B             0x1
56 #define MASK_LANE_C             0x2
57 #define MASK_LANE_D             0x4
58 #define MASK_SGMII              0x8
59
60 #define KEEP_STATUS             0x0
61 #define NEED_RESET              0x1
62
63 #define SOFT_MUX_ON_I2C3_IFC    0x2
64 #define SOFT_MUX_ON_CAN3_USB2   0x8
65 #define SOFT_MUX_ON_QE_LCD      0x10
66
67 #define PIN_I2C3_IFC_MUX_I2C3   0x0
68 #define PIN_I2C3_IFC_MUX_IFC    0x1
69 #define PIN_CAN3_USB2_MUX_USB2  0x0
70 #define PIN_CAN3_USB2_MUX_CAN3  0x1
71 #define PIN_QE_LCD_MUX_LCD      0x0
72 #define PIN_QE_LCD_MUX_QE       0x1
73
74 struct cpld_data {
75         u8 cpld_ver;            /* cpld revision */
76         u8 cpld_ver_sub;        /* cpld sub revision */
77         u8 pcba_ver;            /* pcb revision number */
78         u8 system_rst;          /* reset system by cpld */
79         u8 soft_mux_on;         /* CPLD override physical switches Enable */
80         u8 cfg_rcw_src1;        /* Reset config word 1 */
81         u8 cfg_rcw_src2;        /* Reset config word 2 */
82         u8 vbank;               /* Flash bank selection Control */
83         u8 gpio;                /* GPIO for TWR-ELEV */
84         u8 i2c3_ifc_mux;
85         u8 mux_spi2;
86         u8 can3_usb2_mux;       /* CAN3 and USB2 Selection */
87         u8 qe_lcd_mux;          /* QE and LCD Selection */
88         u8 serdes_mux;          /* Multiplexed pins for SerDes Lanes */
89         u8 global_rst;          /* reset with init CPLD reg to default */
90         u8 rev1;                /* Reserved */
91         u8 rev2;                /* Reserved */
92 };
93
94 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
95 static void convert_serdes_mux(int type, int need_reset);
96
97 void cpld_show(void)
98 {
99         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
100
101         printf("CPLD:  V%x.%x\nPCBA:  V%x.0\nVBank: %d\n",
102                in_8(&cpld_data->cpld_ver) & VERSION_MASK,
103                in_8(&cpld_data->cpld_ver_sub) & VERSION_MASK,
104                in_8(&cpld_data->pcba_ver) & VERSION_MASK,
105                in_8(&cpld_data->vbank) & BANK_MASK);
106
107 #ifdef CONFIG_DEBUG
108         printf("soft_mux_on =%x\n",
109                in_8(&cpld_data->soft_mux_on));
110         printf("cfg_rcw_src1 =%x\n",
111                in_8(&cpld_data->cfg_rcw_src1));
112         printf("cfg_rcw_src2 =%x\n",
113                in_8(&cpld_data->cfg_rcw_src2));
114         printf("vbank =%x\n",
115                in_8(&cpld_data->vbank));
116         printf("gpio =%x\n",
117                in_8(&cpld_data->gpio));
118         printf("i2c3_ifc_mux =%x\n",
119                in_8(&cpld_data->i2c3_ifc_mux));
120         printf("mux_spi2 =%x\n",
121                in_8(&cpld_data->mux_spi2));
122         printf("can3_usb2_mux =%x\n",
123                in_8(&cpld_data->can3_usb2_mux));
124         printf("qe_lcd_mux =%x\n",
125                in_8(&cpld_data->qe_lcd_mux));
126         printf("serdes_mux =%x\n",
127                in_8(&cpld_data->serdes_mux));
128 #endif
129 }
130 #endif
131
132 int checkboard(void)
133 {
134         puts("Board: LS1021ATWR\n");
135 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
136         cpld_show();
137 #endif
138
139         return 0;
140 }
141
142 void ddrmc_init(void)
143 {
144         struct ccsr_ddr *ddr = (struct ccsr_ddr *)CONFIG_SYS_FSL_DDR_ADDR;
145         u32 temp_sdram_cfg;
146
147         out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG);
148
149         out_be32(&ddr->cs0_bnds, DDR_CS0_BNDS);
150         out_be32(&ddr->cs0_config, DDR_CS0_CONFIG);
151
152         out_be32(&ddr->timing_cfg_0, DDR_TIMING_CFG_0);
153         out_be32(&ddr->timing_cfg_1, DDR_TIMING_CFG_1);
154         out_be32(&ddr->timing_cfg_2, DDR_TIMING_CFG_2);
155         out_be32(&ddr->timing_cfg_3, DDR_TIMING_CFG_3);
156         out_be32(&ddr->timing_cfg_4, DDR_TIMING_CFG_4);
157         out_be32(&ddr->timing_cfg_5, DDR_TIMING_CFG_5);
158
159 #ifdef CONFIG_DEEP_SLEEP
160         if (is_warm_boot()) {
161                 out_be32(&ddr->sdram_cfg_2,
162                          DDR_SDRAM_CFG_2 & ~SDRAM_CFG2_D_INIT);
163                 out_be32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
164                 out_be32(&ddr->init_ext_addr, (1 << 31));
165
166                 /* DRAM VRef will not be trained */
167                 out_be32(&ddr->ddr_cdr2,
168                          DDR_DDR_CDR2 & ~DDR_CDR2_VREF_TRAIN_EN);
169         } else
170 #endif
171         {
172                 out_be32(&ddr->sdram_cfg_2, DDR_SDRAM_CFG_2);
173                 out_be32(&ddr->ddr_cdr2, DDR_DDR_CDR2);
174         }
175
176         out_be32(&ddr->sdram_mode, DDR_SDRAM_MODE);
177         out_be32(&ddr->sdram_mode_2, DDR_SDRAM_MODE_2);
178
179         out_be32(&ddr->sdram_interval, DDR_SDRAM_INTERVAL);
180
181         out_be32(&ddr->ddr_wrlvl_cntl, DDR_DDR_WRLVL_CNTL);
182
183         out_be32(&ddr->ddr_wrlvl_cntl_2, DDR_DDR_WRLVL_CNTL_2);
184         out_be32(&ddr->ddr_wrlvl_cntl_3, DDR_DDR_WRLVL_CNTL_3);
185
186         out_be32(&ddr->ddr_cdr1, DDR_DDR_CDR1);
187
188         out_be32(&ddr->sdram_clk_cntl, DDR_SDRAM_CLK_CNTL);
189         out_be32(&ddr->ddr_zq_cntl, DDR_DDR_ZQ_CNTL);
190
191         out_be32(&ddr->cs0_config_2, DDR_CS0_CONFIG_2);
192         udelay(1);
193
194 #ifdef CONFIG_DEEP_SLEEP
195         if (is_warm_boot()) {
196                 /* enter self-refresh */
197                 temp_sdram_cfg = in_be32(&ddr->sdram_cfg_2);
198                 temp_sdram_cfg |= SDRAM_CFG2_FRC_SR;
199                 out_be32(&ddr->sdram_cfg_2, temp_sdram_cfg);
200
201                 temp_sdram_cfg = (DDR_SDRAM_CFG_MEM_EN | SDRAM_CFG_BI);
202         } else
203 #endif
204                 temp_sdram_cfg = (DDR_SDRAM_CFG_MEM_EN & ~SDRAM_CFG_BI);
205
206         out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG | temp_sdram_cfg);
207
208 #ifdef CONFIG_DEEP_SLEEP
209         if (is_warm_boot()) {
210                 /* exit self-refresh */
211                 temp_sdram_cfg = in_be32(&ddr->sdram_cfg_2);
212                 temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR;
213                 out_be32(&ddr->sdram_cfg_2, temp_sdram_cfg);
214         }
215 #endif
216 }
217
218 int dram_init(void)
219 {
220 #if (!defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD))
221         ddrmc_init();
222 #endif
223
224         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
225
226 #if defined(CONFIG_DEEP_SLEEP) && !defined(CONFIG_SPL_BUILD)
227         fsl_dp_resume();
228 #endif
229
230         return 0;
231 }
232
233 #ifdef CONFIG_FSL_ESDHC
234 struct fsl_esdhc_cfg esdhc_cfg[1] = {
235         {CONFIG_SYS_FSL_ESDHC_ADDR},
236 };
237
238 int board_mmc_init(bd_t *bis)
239 {
240         esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
241
242         return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
243 }
244 #endif
245
246 int board_eth_init(bd_t *bis)
247 {
248 #ifdef CONFIG_TSEC_ENET
249         struct fsl_pq_mdio_info mdio_info;
250         struct tsec_info_struct tsec_info[4];
251         int num = 0;
252
253 #ifdef CONFIG_TSEC1
254         SET_STD_TSEC_INFO(tsec_info[num], 1);
255         if (is_serdes_configured(SGMII_TSEC1)) {
256                 puts("eTSEC1 is in sgmii mode.\n");
257                 tsec_info[num].flags |= TSEC_SGMII;
258         }
259         num++;
260 #endif
261 #ifdef CONFIG_TSEC2
262         SET_STD_TSEC_INFO(tsec_info[num], 2);
263         if (is_serdes_configured(SGMII_TSEC2)) {
264                 puts("eTSEC2 is in sgmii mode.\n");
265                 tsec_info[num].flags |= TSEC_SGMII;
266         }
267         num++;
268 #endif
269 #ifdef CONFIG_TSEC3
270         SET_STD_TSEC_INFO(tsec_info[num], 3);
271         num++;
272 #endif
273         if (!num) {
274                 printf("No TSECs initialized\n");
275                 return 0;
276         }
277
278         mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
279         mdio_info.name = DEFAULT_MII_NAME;
280         fsl_pq_mdio_init(bis, &mdio_info);
281
282         tsec_eth_init(bis, tsec_info, num);
283 #endif
284
285         return pci_eth_init(bis);
286 }
287
288 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
289 int config_serdes_mux(void)
290 {
291         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
292         u32 protocol = in_be32(&gur->rcwsr[4]) & RCWSR4_SRDS1_PRTCL_MASK;
293
294         protocol >>= RCWSR4_SRDS1_PRTCL_SHIFT;
295         switch (protocol) {
296         case 0x10:
297                 convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
298                 convert_serdes_mux(LANED_PCIEX2 |
299                                 LANEC_PCIEX1, KEEP_STATUS);
300                 break;
301         case 0x20:
302                 convert_serdes_mux(LANEB_SGMII1, KEEP_STATUS);
303                 convert_serdes_mux(LANEC_PCIEX1, KEEP_STATUS);
304                 convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
305                 break;
306         case 0x30:
307                 convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
308                 convert_serdes_mux(LANEC_SGMII1, KEEP_STATUS);
309                 convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
310                 break;
311         case 0x70:
312                 convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
313                 convert_serdes_mux(LANEC_PCIEX1, KEEP_STATUS);
314                 convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
315                 break;
316         }
317
318         return 0;
319 }
320 #endif
321
322 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
323 int config_board_mux(void)
324 {
325         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
326         int conflict_flag;
327
328         conflict_flag = 0;
329         if (hwconfig("i2c3")) {
330                 conflict_flag++;
331                 cpld_data->soft_mux_on |= SOFT_MUX_ON_I2C3_IFC;
332                 cpld_data->i2c3_ifc_mux = PIN_I2C3_IFC_MUX_I2C3;
333         }
334
335         if (hwconfig("ifc")) {
336                 conflict_flag++;
337                 /* some signals can not enable simultaneous*/
338                 if (conflict_flag > 1)
339                         goto conflict;
340                 cpld_data->soft_mux_on |= SOFT_MUX_ON_I2C3_IFC;
341                 cpld_data->i2c3_ifc_mux = PIN_I2C3_IFC_MUX_IFC;
342         }
343
344         conflict_flag = 0;
345         if (hwconfig("usb2")) {
346                 conflict_flag++;
347                 cpld_data->soft_mux_on |= SOFT_MUX_ON_CAN3_USB2;
348                 cpld_data->can3_usb2_mux = PIN_CAN3_USB2_MUX_USB2;
349         }
350
351         if (hwconfig("can3")) {
352                 conflict_flag++;
353                 /* some signals can not enable simultaneous*/
354                 if (conflict_flag > 1)
355                         goto conflict;
356                 cpld_data->soft_mux_on |= SOFT_MUX_ON_CAN3_USB2;
357                 cpld_data->can3_usb2_mux = PIN_CAN3_USB2_MUX_CAN3;
358         }
359
360         conflict_flag = 0;
361         if (hwconfig("lcd")) {
362                 conflict_flag++;
363                 cpld_data->soft_mux_on |= SOFT_MUX_ON_QE_LCD;
364                 cpld_data->qe_lcd_mux = PIN_QE_LCD_MUX_LCD;
365         }
366
367         if (hwconfig("qe")) {
368                 conflict_flag++;
369                 /* some signals can not enable simultaneous*/
370                 if (conflict_flag > 1)
371                         goto conflict;
372                 cpld_data->soft_mux_on |= SOFT_MUX_ON_QE_LCD;
373                 cpld_data->qe_lcd_mux = PIN_QE_LCD_MUX_QE;
374         }
375
376         return 0;
377
378 conflict:
379         printf("WARNING: pin conflict! MUX setting may failed!\n");
380         return 0;
381 }
382 #endif
383
384 int board_early_init_f(void)
385 {
386         struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
387
388 #ifdef CONFIG_TSEC_ENET
389         /* clear BD & FR bits for BE BD's and frame data */
390         clrbits_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
391         out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125);
392 #endif
393
394 #ifdef CONFIG_FSL_IFC
395         init_early_memctl_regs();
396 #endif
397
398         arch_soc_init();
399
400 #if defined(CONFIG_DEEP_SLEEP)
401         if (is_warm_boot()) {
402                 timer_init();
403                 dram_init();
404         }
405 #endif
406
407         return 0;
408 }
409
410 #ifdef CONFIG_SPL_BUILD
411 void board_init_f(ulong dummy)
412 {
413         void (*second_uboot)(void);
414
415         /* Clear the BSS */
416         memset(__bss_start, 0, __bss_end - __bss_start);
417
418         get_clocks();
419
420 #if defined(CONFIG_DEEP_SLEEP)
421         if (is_warm_boot())
422                 fsl_dp_disable_console();
423 #endif
424
425         preloader_console_init();
426
427         dram_init();
428
429         /* Allow OCRAM access permission as R/W */
430 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
431         enable_layerscape_ns_access();
432         enable_layerscape_ns_access();
433 #endif
434
435         /*
436          * if it is woken up from deep sleep, then jump to second
437          * stage uboot and continue executing without recopying
438          * it from SD since it has already been reserved in memeory
439          * in last boot.
440          */
441         if (is_warm_boot()) {
442                 second_uboot = (void (*)(void))CONFIG_SYS_TEXT_BASE;
443                 second_uboot();
444         }
445
446         board_init_r(NULL, 0);
447 }
448 #endif
449
450 #ifdef CONFIG_DEEP_SLEEP
451 /* program the regulator (MC34VR500) to support deep sleep */
452 void ls1twr_program_regulator(void)
453 {
454         unsigned int i2c_bus;
455         u8 i2c_device_id;
456
457 #define LS1TWR_I2C_BUS_MC34VR500        1
458 #define MC34VR500_ADDR                  0x8
459 #define MC34VR500_DEVICEID              0x4
460 #define MC34VR500_DEVICEID_MASK         0x0f
461
462         i2c_bus = i2c_get_bus_num();
463         i2c_set_bus_num(LS1TWR_I2C_BUS_MC34VR500);
464         i2c_device_id = i2c_reg_read(MC34VR500_ADDR, 0x0) &
465                                         MC34VR500_DEVICEID_MASK;
466         if (i2c_device_id != MC34VR500_DEVICEID) {
467                 printf("The regulator (MC34VR500) does not exist. The device does not support deep sleep.\n");
468                 return;
469         }
470
471         i2c_reg_write(MC34VR500_ADDR, 0x31, 0x4);
472         i2c_reg_write(MC34VR500_ADDR, 0x4d, 0x4);
473         i2c_reg_write(MC34VR500_ADDR, 0x6d, 0x38);
474         i2c_reg_write(MC34VR500_ADDR, 0x6f, 0x37);
475         i2c_reg_write(MC34VR500_ADDR, 0x71, 0x30);
476
477         i2c_set_bus_num(i2c_bus);
478 }
479 #endif
480
481 int board_init(void)
482 {
483 #ifndef CONFIG_SYS_FSL_NO_SERDES
484         fsl_serdes_init();
485 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
486         config_serdes_mux();
487 #endif
488 #endif
489
490         ls102xa_smmu_stream_id_init();
491
492 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
493         enable_layerscape_ns_access();
494 #endif
495
496 #ifdef CONFIG_U_QE
497         u_qe_init();
498 #endif
499
500 #ifdef CONFIG_DEEP_SLEEP
501         ls1twr_program_regulator();
502 #endif
503         return 0;
504 }
505
506 #if defined(CONFIG_SPL_BUILD)
507 void spl_board_init(void)
508 {
509         ls102xa_smmu_stream_id_init();
510 }
511 #endif
512
513 #ifdef CONFIG_BOARD_LATE_INIT
514 int board_late_init(void)
515 {
516 #ifdef CONFIG_SCSI_AHCI_PLAT
517         ls1021a_sata_init();
518 #endif
519 #ifdef CONFIG_CHAIN_OF_TRUST
520         fsl_setenv_chain_of_trust();
521 #endif
522
523         return 0;
524 }
525 #endif
526
527 #if defined(CONFIG_MISC_INIT_R)
528 int misc_init_r(void)
529 {
530 #ifdef CONFIG_FSL_DEVICE_DISABLE
531         device_disable(devdis_tbl, ARRAY_SIZE(devdis_tbl));
532 #endif
533 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
534         config_board_mux();
535 #endif
536
537 #ifdef CONFIG_FSL_CAAM
538         return sec_init();
539 #endif
540 }
541 #endif
542
543 #if defined(CONFIG_DEEP_SLEEP)
544 void board_sleep_prepare(void)
545 {
546 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
547         enable_layerscape_ns_access();
548 #endif
549 }
550 #endif
551
552 int ft_board_setup(void *blob, bd_t *bd)
553 {
554         ft_cpu_setup(blob, bd);
555
556 #ifdef CONFIG_PCI
557         ft_pci_setup(blob, bd);
558 #endif
559
560         return 0;
561 }
562
563 u8 flash_read8(void *addr)
564 {
565         return __raw_readb(addr + 1);
566 }
567
568 void flash_write16(u16 val, void *addr)
569 {
570         u16 shftval = (((val >> 8) & 0xff) | ((val << 8) & 0xff00));
571
572         __raw_writew(shftval, addr);
573 }
574
575 u16 flash_read16(void *addr)
576 {
577         u16 val = __raw_readw(addr);
578
579         return (((val) >> 8) & 0x00ff) | (((val) << 8) & 0xff00);
580 }
581
582 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
583 static void convert_flash_bank(char bank)
584 {
585         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
586
587         printf("Now switch to boot from flash bank %d.\n", bank);
588         cpld_data->soft_mux_on = CPLD_SET_BOOT_BANK;
589         cpld_data->vbank = bank;
590
591         printf("Reset board to enable configuration.\n");
592         cpld_data->system_rst = CONFIG_RESET;
593 }
594
595 static int flash_bank_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
596                           char * const argv[])
597 {
598         if (argc != 2)
599                 return CMD_RET_USAGE;
600         if (strcmp(argv[1], "0") == 0)
601                 convert_flash_bank(BOOT_FROM_UPPER_BANK);
602         else if (strcmp(argv[1], "1") == 0)
603                 convert_flash_bank(BOOT_FROM_LOWER_BANK);
604         else
605                 return CMD_RET_USAGE;
606
607         return 0;
608 }
609
610 U_BOOT_CMD(
611         boot_bank, 2, 0, flash_bank_cmd,
612         "Flash bank Selection Control",
613         "bank[0-upper bank/1-lower bank] (e.g. boot_bank 0)"
614 );
615
616 static int cpld_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
617                           char * const argv[])
618 {
619         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
620
621         if (argc > 2)
622                 return CMD_RET_USAGE;
623         if ((argc == 1) || (strcmp(argv[1], "conf") == 0))
624                 cpld_data->system_rst = CONFIG_RESET;
625         else if (strcmp(argv[1], "init") == 0)
626                 cpld_data->global_rst = INIT_RESET;
627         else
628                 return CMD_RET_USAGE;
629
630         return 0;
631 }
632
633 U_BOOT_CMD(
634         cpld_reset, 2, 0, cpld_reset_cmd,
635         "Reset via CPLD",
636         "conf\n"
637         "       -reset with current CPLD configuration\n"
638         "init\n"
639         "       -reset and initial CPLD configuration with default value"
640
641 );
642
643 static void convert_serdes_mux(int type, int need_reset)
644 {
645         char current_serdes;
646         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
647
648         current_serdes = cpld_data->serdes_mux;
649
650         switch (type) {
651         case LANEB_SATA:
652                 current_serdes &= ~MASK_LANE_B;
653                 break;
654         case LANEB_SGMII1:
655                 current_serdes |= (MASK_LANE_B | MASK_SGMII | MASK_LANE_C);
656                 break;
657         case LANEC_SGMII1:
658                 current_serdes &= ~(MASK_LANE_B | MASK_SGMII | MASK_LANE_C);
659                 break;
660         case LANED_SGMII2:
661                 current_serdes |= MASK_LANE_D;
662                 break;
663         case LANEC_PCIEX1:
664                 current_serdes |= MASK_LANE_C;
665                 break;
666         case (LANED_PCIEX2 | LANEC_PCIEX1):
667                 current_serdes |= MASK_LANE_C;
668                 current_serdes &= ~MASK_LANE_D;
669                 break;
670         default:
671                 printf("CPLD serdes MUX: unsupported MUX type 0x%x\n", type);
672                 return;
673         }
674
675         cpld_data->soft_mux_on |= CPLD_SET_MUX_SERDES;
676         cpld_data->serdes_mux = current_serdes;
677
678         if (need_reset == 1) {
679                 printf("Reset board to enable configuration\n");
680                 cpld_data->system_rst = CONFIG_RESET;
681         }
682 }
683
684 void print_serdes_mux(void)
685 {
686         char current_serdes;
687         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
688
689         current_serdes = cpld_data->serdes_mux;
690
691         printf("Serdes Lane B: ");
692         if ((current_serdes & MASK_LANE_B) == 0)
693                 printf("SATA,\n");
694         else
695                 printf("SGMII 1,\n");
696
697         printf("Serdes Lane C: ");
698         if ((current_serdes & MASK_LANE_C) == 0)
699                 printf("SGMII 1,\n");
700         else
701                 printf("PCIe,\n");
702
703         printf("Serdes Lane D: ");
704         if ((current_serdes & MASK_LANE_D) == 0)
705                 printf("PCIe,\n");
706         else
707                 printf("SGMII 2,\n");
708
709         printf("SGMII 1 is on lane ");
710         if ((current_serdes & MASK_SGMII) == 0)
711                 printf("C.\n");
712         else
713                 printf("B.\n");
714 }
715
716 static int serdes_mux_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
717                           char * const argv[])
718 {
719         if (argc != 2)
720                 return CMD_RET_USAGE;
721         if (strcmp(argv[1], "sata") == 0) {
722                 printf("Set serdes lane B to SATA.\n");
723                 convert_serdes_mux(LANEB_SATA, NEED_RESET);
724         } else if (strcmp(argv[1], "sgmii1b") == 0) {
725                 printf("Set serdes lane B to SGMII 1.\n");
726                 convert_serdes_mux(LANEB_SGMII1, NEED_RESET);
727         } else if (strcmp(argv[1], "sgmii1c") == 0) {
728                 printf("Set serdes lane C to SGMII 1.\n");
729                 convert_serdes_mux(LANEC_SGMII1, NEED_RESET);
730         } else if (strcmp(argv[1], "sgmii2") == 0) {
731                 printf("Set serdes lane D to SGMII 2.\n");
732                 convert_serdes_mux(LANED_SGMII2, NEED_RESET);
733         } else if (strcmp(argv[1], "pciex1") == 0) {
734                 printf("Set serdes lane C to PCIe X1.\n");
735                 convert_serdes_mux(LANEC_PCIEX1, NEED_RESET);
736         } else if (strcmp(argv[1], "pciex2") == 0) {
737                 printf("Set serdes lane C & lane D to PCIe X2.\n");
738                 convert_serdes_mux((LANED_PCIEX2 | LANEC_PCIEX1), NEED_RESET);
739         } else if (strcmp(argv[1], "show") == 0) {
740                 print_serdes_mux();
741         } else {
742                 return CMD_RET_USAGE;
743         }
744
745         return 0;
746 }
747
748 U_BOOT_CMD(
749         lane_bank, 2, 0, serdes_mux_cmd,
750         "Multiplexed function setting for SerDes Lanes",
751         "sata\n"
752         "       -change lane B to sata\n"
753         "lane_bank sgmii1b\n"
754         "       -change lane B to SGMII1\n"
755         "lane_bank sgmii1c\n"
756         "       -change lane C to SGMII1\n"
757         "lane_bank sgmii2\n"
758         "       -change lane D to SGMII2\n"
759         "lane_bank pciex1\n"
760         "       -change lane C to PCIeX1\n"
761         "lane_bank pciex2\n"
762         "       -change lane C & lane D to PCIeX2\n"
763         "\nWARNING: If you aren't familiar with the setting of serdes, don't try to change anything!\n"
764 );
765 #endif