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arm: ls102xa: Add QSPI boot support for LS1021AQDS/TWR board
[karo-tx-uboot.git] / board / freescale / ls1021atwr / ls1021atwr.c
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/pcie_layerscape.h>
14 #include <mmc.h>
15 #include <fsl_esdhc.h>
16 #include <fsl_ifc.h>
17 #include <netdev.h>
18 #include <fsl_mdio.h>
19 #include <tsec.h>
20 #include <fsl_sec.h>
21 #include <spl.h>
22 #ifdef CONFIG_U_QE
23 #include "../../../drivers/qe/qe.h"
24 #endif
25
26
27 DECLARE_GLOBAL_DATA_PTR;
28
29 #define VERSION_MASK            0x00FF
30 #define BANK_MASK               0x0001
31 #define CONFIG_RESET            0x1
32 #define INIT_RESET              0x1
33
34 #define CPLD_SET_MUX_SERDES     0x20
35 #define CPLD_SET_BOOT_BANK      0x40
36
37 #define BOOT_FROM_UPPER_BANK    0x0
38 #define BOOT_FROM_LOWER_BANK    0x1
39
40 #define LANEB_SATA              (0x01)
41 #define LANEB_SGMII1            (0x02)
42 #define LANEC_SGMII1            (0x04)
43 #define LANEC_PCIEX1            (0x08)
44 #define LANED_PCIEX2            (0x10)
45 #define LANED_SGMII2            (0x20)
46
47 #define MASK_LANE_B             0x1
48 #define MASK_LANE_C             0x2
49 #define MASK_LANE_D             0x4
50 #define MASK_SGMII              0x8
51
52 #define KEEP_STATUS             0x0
53 #define NEED_RESET              0x1
54
55 struct cpld_data {
56         u8 cpld_ver;            /* cpld revision */
57         u8 cpld_ver_sub;        /* cpld sub revision */
58         u8 pcba_ver;            /* pcb revision number */
59         u8 system_rst;          /* reset system by cpld */
60         u8 soft_mux_on;         /* CPLD override physical switches Enable */
61         u8 cfg_rcw_src1;        /* Reset config word 1 */
62         u8 cfg_rcw_src2;        /* Reset config word 2 */
63         u8 vbank;               /* Flash bank selection Control */
64         u8 gpio;                /* GPIO for TWR-ELEV */
65         u8 i2c3_ifc_mux;
66         u8 mux_spi2;
67         u8 can3_usb2_mux;       /* CAN3 and USB2 Selection */
68         u8 qe_lcd_mux;          /* QE and LCD Selection */
69         u8 serdes_mux;          /* Multiplexed pins for SerDes Lanes */
70         u8 global_rst;          /* reset with init CPLD reg to default */
71         u8 rev1;                /* Reserved */
72         u8 rev2;                /* Reserved */
73 };
74
75 #ifndef CONFIG_QSPI_BOOT
76 static void convert_serdes_mux(int type, int need_reset);
77
78 void cpld_show(void)
79 {
80         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
81
82         printf("CPLD:  V%x.%x\nPCBA:  V%x.0\nVBank: %d\n",
83                in_8(&cpld_data->cpld_ver) & VERSION_MASK,
84                in_8(&cpld_data->cpld_ver_sub) & VERSION_MASK,
85                in_8(&cpld_data->pcba_ver) & VERSION_MASK,
86                in_8(&cpld_data->vbank) & BANK_MASK);
87
88 #ifdef CONFIG_DEBUG
89         printf("soft_mux_on =%x\n",
90                in_8(&cpld_data->soft_mux_on));
91         printf("cfg_rcw_src1 =%x\n",
92                in_8(&cpld_data->cfg_rcw_src1));
93         printf("cfg_rcw_src2 =%x\n",
94                in_8(&cpld_data->cfg_rcw_src2));
95         printf("vbank =%x\n",
96                in_8(&cpld_data->vbank));
97         printf("gpio =%x\n",
98                in_8(&cpld_data->gpio));
99         printf("i2c3_ifc_mux =%x\n",
100                in_8(&cpld_data->i2c3_ifc_mux));
101         printf("mux_spi2 =%x\n",
102                in_8(&cpld_data->mux_spi2));
103         printf("can3_usb2_mux =%x\n",
104                in_8(&cpld_data->can3_usb2_mux));
105         printf("qe_lcd_mux =%x\n",
106                in_8(&cpld_data->qe_lcd_mux));
107         printf("serdes_mux =%x\n",
108                in_8(&cpld_data->serdes_mux));
109 #endif
110 }
111 #endif
112
113 int checkboard(void)
114 {
115         puts("Board: LS1021ATWR\n");
116 #ifndef CONFIG_QSPI_BOOT
117         cpld_show();
118 #endif
119
120         return 0;
121 }
122
123 void ddrmc_init(void)
124 {
125         struct ccsr_ddr *ddr = (struct ccsr_ddr *)CONFIG_SYS_FSL_DDR_ADDR;
126
127         out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG);
128
129         out_be32(&ddr->cs0_bnds, DDR_CS0_BNDS);
130         out_be32(&ddr->cs0_config, DDR_CS0_CONFIG);
131
132         out_be32(&ddr->timing_cfg_0, DDR_TIMING_CFG_0);
133         out_be32(&ddr->timing_cfg_1, DDR_TIMING_CFG_1);
134         out_be32(&ddr->timing_cfg_2, DDR_TIMING_CFG_2);
135         out_be32(&ddr->timing_cfg_3, DDR_TIMING_CFG_3);
136         out_be32(&ddr->timing_cfg_4, DDR_TIMING_CFG_4);
137         out_be32(&ddr->timing_cfg_5, DDR_TIMING_CFG_5);
138
139         out_be32(&ddr->sdram_cfg_2,  DDR_SDRAM_CFG_2);
140
141         out_be32(&ddr->sdram_mode, DDR_SDRAM_MODE);
142         out_be32(&ddr->sdram_mode_2, DDR_SDRAM_MODE_2);
143
144         out_be32(&ddr->sdram_interval, DDR_SDRAM_INTERVAL);
145
146         out_be32(&ddr->ddr_wrlvl_cntl, DDR_DDR_WRLVL_CNTL);
147
148         out_be32(&ddr->ddr_wrlvl_cntl_2, DDR_DDR_WRLVL_CNTL_2);
149         out_be32(&ddr->ddr_wrlvl_cntl_3, DDR_DDR_WRLVL_CNTL_3);
150
151         out_be32(&ddr->ddr_cdr1, DDR_DDR_CDR1);
152         out_be32(&ddr->ddr_cdr2, DDR_DDR_CDR2);
153
154         out_be32(&ddr->sdram_clk_cntl, DDR_SDRAM_CLK_CNTL);
155         out_be32(&ddr->ddr_zq_cntl, DDR_DDR_ZQ_CNTL);
156
157         out_be32(&ddr->cs0_config_2, DDR_CS0_CONFIG_2);
158         udelay(1);
159         out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG | DDR_SDRAM_CFG_MEM_EN);
160 }
161
162 int dram_init(void)
163 {
164 #if (!defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD))
165         ddrmc_init();
166 #endif
167
168         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
169         return 0;
170 }
171
172 #ifdef CONFIG_FSL_ESDHC
173 struct fsl_esdhc_cfg esdhc_cfg[1] = {
174         {CONFIG_SYS_FSL_ESDHC_ADDR},
175 };
176
177 int board_mmc_init(bd_t *bis)
178 {
179         esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
180
181         return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
182 }
183 #endif
184
185 #ifdef CONFIG_TSEC_ENET
186 int board_eth_init(bd_t *bis)
187 {
188         struct fsl_pq_mdio_info mdio_info;
189         struct tsec_info_struct tsec_info[4];
190         int num = 0;
191
192 #ifdef CONFIG_TSEC1
193         SET_STD_TSEC_INFO(tsec_info[num], 1);
194         if (is_serdes_configured(SGMII_TSEC1)) {
195                 puts("eTSEC1 is in sgmii mode.\n");
196                 tsec_info[num].flags |= TSEC_SGMII;
197         }
198         num++;
199 #endif
200 #ifdef CONFIG_TSEC2
201         SET_STD_TSEC_INFO(tsec_info[num], 2);
202         if (is_serdes_configured(SGMII_TSEC2)) {
203                 puts("eTSEC2 is in sgmii mode.\n");
204                 tsec_info[num].flags |= TSEC_SGMII;
205         }
206         num++;
207 #endif
208 #ifdef CONFIG_TSEC3
209         SET_STD_TSEC_INFO(tsec_info[num], 3);
210         num++;
211 #endif
212         if (!num) {
213                 printf("No TSECs initialized\n");
214                 return 0;
215         }
216
217         mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
218         mdio_info.name = DEFAULT_MII_NAME;
219         fsl_pq_mdio_init(bis, &mdio_info);
220
221         tsec_eth_init(bis, tsec_info, num);
222
223         return pci_eth_init(bis);
224 }
225 #endif
226
227 #ifndef CONFIG_QSPI_BOOT
228 int config_serdes_mux(void)
229 {
230         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
231         u32 protocol = in_be32(&gur->rcwsr[4]) & RCWSR4_SRDS1_PRTCL_MASK;
232
233         protocol >>= RCWSR4_SRDS1_PRTCL_SHIFT;
234         switch (protocol) {
235         case 0x10:
236                 convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
237                 convert_serdes_mux(LANED_PCIEX2 |
238                                 LANEC_PCIEX1, KEEP_STATUS);
239                 break;
240         case 0x20:
241                 convert_serdes_mux(LANEB_SGMII1, KEEP_STATUS);
242                 convert_serdes_mux(LANEC_PCIEX1, KEEP_STATUS);
243                 convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
244                 break;
245         case 0x30:
246                 convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
247                 convert_serdes_mux(LANEC_SGMII1, KEEP_STATUS);
248                 convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
249                 break;
250         case 0x70:
251                 convert_serdes_mux(LANEB_SATA, KEEP_STATUS);
252                 convert_serdes_mux(LANEC_PCIEX1, KEEP_STATUS);
253                 convert_serdes_mux(LANED_SGMII2, KEEP_STATUS);
254                 break;
255         }
256
257         return 0;
258 }
259 #endif
260
261 int board_early_init_f(void)
262 {
263         struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
264
265 #ifdef CONFIG_TSEC_ENET
266         out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
267         out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125);
268 #endif
269
270 #ifdef CONFIG_FSL_IFC
271         init_early_memctl_regs();
272 #endif
273
274 #ifdef CONFIG_FSL_DCU_FB
275         out_be32(&scfg->pixclkcr, SCFG_PIXCLKCR_PXCKEN);
276 #endif
277
278 #ifdef CONFIG_FSL_QSPI
279         out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
280 #endif
281
282         return 0;
283 }
284
285 #ifdef CONFIG_SPL_BUILD
286 void board_init_f(ulong dummy)
287 {
288         /* Set global data pointer */
289         gd = &gdata;
290
291         /* Clear the BSS */
292         memset(__bss_start, 0, __bss_end - __bss_start);
293
294         get_clocks();
295
296         preloader_console_init();
297
298         dram_init();
299
300         board_init_r(NULL, 0);
301 }
302 #endif
303
304 int board_init(void)
305 {
306         struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
307
308         /*
309          * Set CCI-400 Slave interface S0, S1, S2 Shareable Override Register
310          * All transactions are treated as non-shareable
311          */
312         out_le32(&cci->slave[0].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
313         out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
314         out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
315
316 #ifndef CONFIG_SYS_FSL_NO_SERDES
317         fsl_serdes_init();
318 #ifndef CONFIG_QSPI_BOOT
319         config_serdes_mux();
320 #endif
321 #endif
322
323 #ifdef CONFIG_U_QE
324         u_qe_init();
325 #endif
326
327         return 0;
328 }
329
330 #if defined(CONFIG_MISC_INIT_R)
331 int misc_init_r(void)
332 {
333 #ifdef CONFIG_FSL_CAAM
334         return sec_init();
335 #endif
336 }
337 #endif
338
339 int ft_board_setup(void *blob, bd_t *bd)
340 {
341         ft_cpu_setup(blob, bd);
342
343 #ifdef CONFIG_PCIE_LAYERSCAPE
344         ft_pcie_setup(blob, bd);
345 #endif
346
347         return 0;
348 }
349
350 u8 flash_read8(void *addr)
351 {
352         return __raw_readb(addr + 1);
353 }
354
355 void flash_write16(u16 val, void *addr)
356 {
357         u16 shftval = (((val >> 8) & 0xff) | ((val << 8) & 0xff00));
358
359         __raw_writew(shftval, addr);
360 }
361
362 u16 flash_read16(void *addr)
363 {
364         u16 val = __raw_readw(addr);
365
366         return (((val) >> 8) & 0x00ff) | (((val) << 8) & 0xff00);
367 }
368
369 #ifndef CONFIG_QSPI_BOOT
370 static void convert_flash_bank(char bank)
371 {
372         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
373
374         printf("Now switch to boot from flash bank %d.\n", bank);
375         cpld_data->soft_mux_on = CPLD_SET_BOOT_BANK;
376         cpld_data->vbank = bank;
377
378         printf("Reset board to enable configuration.\n");
379         cpld_data->system_rst = CONFIG_RESET;
380 }
381
382 static int flash_bank_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
383                           char * const argv[])
384 {
385         if (argc != 2)
386                 return CMD_RET_USAGE;
387         if (strcmp(argv[1], "0") == 0)
388                 convert_flash_bank(BOOT_FROM_UPPER_BANK);
389         else if (strcmp(argv[1], "1") == 0)
390                 convert_flash_bank(BOOT_FROM_LOWER_BANK);
391         else
392                 return CMD_RET_USAGE;
393
394         return 0;
395 }
396
397 U_BOOT_CMD(
398         boot_bank, 2, 0, flash_bank_cmd,
399         "Flash bank Selection Control",
400         "bank[0-upper bank/1-lower bank] (e.g. boot_bank 0)"
401 );
402
403 static int cpld_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
404                           char * const argv[])
405 {
406         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
407
408         if (argc > 2)
409                 return CMD_RET_USAGE;
410         if ((argc == 1) || (strcmp(argv[1], "conf") == 0))
411                 cpld_data->system_rst = CONFIG_RESET;
412         else if (strcmp(argv[1], "init") == 0)
413                 cpld_data->global_rst = INIT_RESET;
414         else
415                 return CMD_RET_USAGE;
416
417         return 0;
418 }
419
420 U_BOOT_CMD(
421         cpld_reset, 2, 0, cpld_reset_cmd,
422         "Reset via CPLD",
423         "conf\n"
424         "       -reset with current CPLD configuration\n"
425         "init\n"
426         "       -reset and initial CPLD configuration with default value"
427
428 );
429
430 static void convert_serdes_mux(int type, int need_reset)
431 {
432         char current_serdes;
433         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
434
435         current_serdes = cpld_data->serdes_mux;
436
437         switch (type) {
438         case LANEB_SATA:
439                 current_serdes &= ~MASK_LANE_B;
440                 break;
441         case LANEB_SGMII1:
442                 current_serdes |= (MASK_LANE_B | MASK_SGMII | MASK_LANE_C);
443                 break;
444         case LANEC_SGMII1:
445                 current_serdes &= ~(MASK_LANE_B | MASK_SGMII | MASK_LANE_C);
446                 break;
447         case LANED_SGMII2:
448                 current_serdes |= MASK_LANE_D;
449                 break;
450         case LANEC_PCIEX1:
451                 current_serdes |= MASK_LANE_C;
452                 break;
453         case (LANED_PCIEX2 | LANEC_PCIEX1):
454                 current_serdes |= MASK_LANE_C;
455                 current_serdes &= ~MASK_LANE_D;
456                 break;
457         default:
458                 printf("CPLD serdes MUX: unsupported MUX type 0x%x\n", type);
459                 return;
460         }
461
462         cpld_data->soft_mux_on |= CPLD_SET_MUX_SERDES;
463         cpld_data->serdes_mux = current_serdes;
464
465         if (need_reset == 1) {
466                 printf("Reset board to enable configuration\n");
467                 cpld_data->system_rst = CONFIG_RESET;
468         }
469 }
470
471 void print_serdes_mux(void)
472 {
473         char current_serdes;
474         struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
475
476         current_serdes = cpld_data->serdes_mux;
477
478         printf("Serdes Lane B: ");
479         if ((current_serdes & MASK_LANE_B) == 0)
480                 printf("SATA,\n");
481         else
482                 printf("SGMII 1,\n");
483
484         printf("Serdes Lane C: ");
485         if ((current_serdes & MASK_LANE_C) == 0)
486                 printf("SGMII 1,\n");
487         else
488                 printf("PCIe,\n");
489
490         printf("Serdes Lane D: ");
491         if ((current_serdes & MASK_LANE_D) == 0)
492                 printf("PCIe,\n");
493         else
494                 printf("SGMII 2,\n");
495
496         printf("SGMII 1 is on lane ");
497         if ((current_serdes & MASK_SGMII) == 0)
498                 printf("C.\n");
499         else
500                 printf("B.\n");
501 }
502
503 static int serdes_mux_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
504                           char * const argv[])
505 {
506         if (argc != 2)
507                 return CMD_RET_USAGE;
508         if (strcmp(argv[1], "sata") == 0) {
509                 printf("Set serdes lane B to SATA.\n");
510                 convert_serdes_mux(LANEB_SATA, NEED_RESET);
511         } else if (strcmp(argv[1], "sgmii1b") == 0) {
512                 printf("Set serdes lane B to SGMII 1.\n");
513                 convert_serdes_mux(LANEB_SGMII1, NEED_RESET);
514         } else if (strcmp(argv[1], "sgmii1c") == 0) {
515                 printf("Set serdes lane C to SGMII 1.\n");
516                 convert_serdes_mux(LANEC_SGMII1, NEED_RESET);
517         } else if (strcmp(argv[1], "sgmii2") == 0) {
518                 printf("Set serdes lane D to SGMII 2.\n");
519                 convert_serdes_mux(LANED_SGMII2, NEED_RESET);
520         } else if (strcmp(argv[1], "pciex1") == 0) {
521                 printf("Set serdes lane C to PCIe X1.\n");
522                 convert_serdes_mux(LANEC_PCIEX1, NEED_RESET);
523         } else if (strcmp(argv[1], "pciex2") == 0) {
524                 printf("Set serdes lane C & lane D to PCIe X2.\n");
525                 convert_serdes_mux((LANED_PCIEX2 | LANEC_PCIEX1), NEED_RESET);
526         } else if (strcmp(argv[1], "show") == 0) {
527                 print_serdes_mux();
528         } else {
529                 return CMD_RET_USAGE;
530         }
531
532         return 0;
533 }
534
535 U_BOOT_CMD(
536         lane_bank, 2, 0, serdes_mux_cmd,
537         "Multiplexed function setting for SerDes Lanes",
538         "sata\n"
539         "       -change lane B to sata\n"
540         "lane_bank sgmii1b\n"
541         "       -change lane B to SGMII1\n"
542         "lane_bank sgmii1c\n"
543         "       -change lane C to SGMII1\n"
544         "lane_bank sgmii2\n"
545         "       -change lane D to SGMII2\n"
546         "lane_bank pciex1\n"
547         "       -change lane C to PCIeX1\n"
548         "lane_bank pciex2\n"
549         "       -change lane C & lane D to PCIeX2\n"
550         "\nWARNING: If you aren't familiar with the setting of serdes, don't try to change anything!\n"
551 );
552 #endif