env: Move env_set() to env.h
[oweals/u-boot.git] / board / toradex / colibri_vf / colibri_vf.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2015-2019 Toradex, Inc.
4  *
5  * Based on vf610twr.c:
6  * Copyright 2013 Freescale Semiconductor, Inc.
7  */
8
9 #include <common.h>
10
11 #include <asm/arch/clock.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/ddrmc-vf610.h>
14 #include <asm/arch/imx-regs.h>
15 #include <asm/arch/iomux-vf610.h>
16 #include <asm/gpio.h>
17 #include <asm/io.h>
18 #include <env.h>
19 #include <fdt_support.h>
20 #include <fsl_dcu_fb.h>
21 #include <g_dnl.h>
22 #include <jffs2/load_kernel.h>
23 #include <mtd_node.h>
24 #include <usb.h>
25
26 #include "../common/tdx-common.h"
27
28 DECLARE_GLOBAL_DATA_PTR;
29
30 #define PTC0_GPIO_45            45
31
32 static struct ddrmc_cr_setting colibri_vf_cr_settings[] = {
33         { DDRMC_CR79_CTLUPD_AREF(1), 79 },
34         /* sets manual values for read lvl. (gate) delay of data slice 0/1 */
35         { DDRMC_CR105_RDLVL_DL_0(28), 105 },
36         { DDRMC_CR106_RDLVL_GTDL_0(24), 106 },
37         { DDRMC_CR110_RDLVL_DL_1(28) | DDRMC_CR110_RDLVL_GTDL_1(24), 110 },
38         { DDRMC_CR102_RDLVL_GT_REGEN | DDRMC_CR102_RDLVL_REG_EN, 102 },
39
40         /* AXI */
41         { DDRMC_CR117_AXI0_W_PRI(0) | DDRMC_CR117_AXI0_R_PRI(0), 117 },
42         { DDRMC_CR118_AXI1_W_PRI(1) | DDRMC_CR118_AXI1_R_PRI(1), 118 },
43         { DDRMC_CR120_AXI0_PRI1_RPRI(2) |
44                    DDRMC_CR120_AXI0_PRI0_RPRI(2), 120 },
45         { DDRMC_CR121_AXI0_PRI3_RPRI(2) |
46                    DDRMC_CR121_AXI0_PRI2_RPRI(2), 121 },
47         { DDRMC_CR122_AXI1_PRI1_RPRI(1) | DDRMC_CR122_AXI1_PRI0_RPRI(1) |
48                    DDRMC_CR122_AXI0_PRIRLX(100), 122 },
49         { DDRMC_CR123_AXI1_P_ODR_EN | DDRMC_CR123_AXI1_PRI3_RPRI(1) |
50                    DDRMC_CR123_AXI1_PRI2_RPRI(1), 123 },
51         { DDRMC_CR124_AXI1_PRIRLX(100), 124 },
52         { DDRMC_CR126_PHY_RDLAT(8), 126 },
53         { DDRMC_CR132_WRLAT_ADJ(5) |
54                    DDRMC_CR132_RDLAT_ADJ(6), 132 },
55         { DDRMC_CR137_PHYCTL_DL(2), 137 },
56         { DDRMC_CR138_PHY_WRLV_MXDL(256) |
57                    DDRMC_CR138_PHYDRAM_CK_EN(1), 138 },
58         { DDRMC_CR139_PHY_WRLV_RESPLAT(4) | DDRMC_CR139_PHY_WRLV_LOAD(7) |
59                    DDRMC_CR139_PHY_WRLV_DLL(3) |
60                    DDRMC_CR139_PHY_WRLV_EN(3), 139 },
61         { DDRMC_CR140_PHY_WRLV_WW(64), 140 },
62         { DDRMC_CR143_RDLV_GAT_MXDL(1536) |
63                    DDRMC_CR143_RDLV_MXDL(128), 143 },
64         { DDRMC_CR144_PHY_RDLVL_RES(4) | DDRMC_CR144_PHY_RDLV_LOAD(7) |
65                    DDRMC_CR144_PHY_RDLV_DLL(3) |
66                    DDRMC_CR144_PHY_RDLV_EN(3), 144 },
67         { DDRMC_CR145_PHY_RDLV_RR(64), 145 },
68         { DDRMC_CR146_PHY_RDLVL_RESP(64), 146 },
69         { DDRMC_CR147_RDLV_RESP_MASK(983040), 147 },
70         { DDRMC_CR148_RDLV_GATE_RESP_MASK(983040), 148 },
71         { DDRMC_CR151_RDLV_GAT_DQ_ZERO_CNT(1) |
72                    DDRMC_CR151_RDLVL_DQ_ZERO_CNT(1), 151 },
73
74         { DDRMC_CR154_PAD_ZQ_EARLY_CMP_EN_TIMER(13) |
75                    DDRMC_CR154_PAD_ZQ_MODE(1) |
76                    DDRMC_CR154_DDR_SEL_PAD_CONTR(3) |
77                    DDRMC_CR154_PAD_ZQ_HW_FOR(1), 154 },
78         { DDRMC_CR155_PAD_ODT_BYTE1(2) | DDRMC_CR155_PAD_ODT_BYTE0(2), 155 },
79         { DDRMC_CR158_TWR(6), 158 },
80         { DDRMC_CR161_ODT_EN(1) | DDRMC_CR161_TODTH_RD(2) |
81                    DDRMC_CR161_TODTH_WR(2), 161 },
82         /* end marker */
83         { 0, -1 }
84 };
85
86 int dram_init(void)
87 {
88         static const struct ddr3_jedec_timings timings = {
89                 .tinit             = 5,
90                 .trst_pwron        = 80000,
91                 .cke_inactive      = 200000,
92                 .wrlat             = 5,
93                 .caslat_lin        = 12,
94                 .trc               = 21,
95                 .trrd              = 4,
96                 .tccd              = 4,
97                 .tbst_int_interval = 0,
98                 .tfaw              = 20,
99                 .trp               = 6,
100                 .twtr              = 4,
101                 .tras_min          = 15,
102                 .tmrd              = 4,
103                 .trtp              = 4,
104                 .tras_max          = 28080,
105                 .tmod              = 12,
106                 .tckesr            = 4,
107                 .tcke              = 3,
108                 .trcd_int          = 6,
109                 .tras_lockout      = 0,
110                 .tdal              = 12,
111                 .bstlen            = 3,
112                 .tdll              = 512, /* not applicable since freq. scaling
113                                            * is not used
114                                            */
115                 .trp_ab            = 6,
116                 .tref              = 3120,
117                 .trfc              = 64,
118                 .tref_int          = 0,
119                 .tpdex             = 3,
120                 .txpdll            = 10,
121                 .txsnr             = 68,  /* changed to conform to JEDEC
122                                            * specifications
123                                            */
124                 .txsr              = 506, /* changed to conform to JEDEC
125                                            * specifications
126                                            */
127                 .cksrx             = 5,
128                 .cksre             = 5,
129                 .freq_chg_en       = 0,
130                 .zqcl              = 256,
131                 .zqinit            = 512,
132                 .zqcs              = 64,
133                 .ref_per_zq        = 64,
134                 .zqcs_rotate       = 0,
135                 .aprebit           = 10,
136                 .cmd_age_cnt       = 64,
137                 .age_cnt           = 64,
138                 .q_fullness        = 7,
139                 .odt_rd_mapcs0     = 0,
140                 .odt_wr_mapcs0     = 1,
141                 .wlmrd             = 40,
142                 .wldqsen           = 25,
143         };
144
145         ddrmc_ctrl_init_ddr3(&timings, colibri_vf_cr_settings, NULL, 1, 2);
146         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
147
148         return 0;
149 }
150
151 #ifdef CONFIG_VYBRID_GPIO
152 static void setup_iomux_gpio(void)
153 {
154         static const iomux_v3_cfg_t gpio_pads[] = {
155                 VF610_PAD_PTA17__GPIO_7,
156                 VF610_PAD_PTA20__GPIO_10,
157                 VF610_PAD_PTA21__GPIO_11,
158                 VF610_PAD_PTA30__GPIO_20,
159                 VF610_PAD_PTA31__GPIO_21,
160                 VF610_PAD_PTB0__GPIO_22,
161                 VF610_PAD_PTB1__GPIO_23,
162                 VF610_PAD_PTB6__GPIO_28,
163                 VF610_PAD_PTB7__GPIO_29,
164                 VF610_PAD_PTB8__GPIO_30,
165                 VF610_PAD_PTB9__GPIO_31,
166                 VF610_PAD_PTB12__GPIO_34,
167                 VF610_PAD_PTB13__GPIO_35,
168                 VF610_PAD_PTB16__GPIO_38,
169                 VF610_PAD_PTB17__GPIO_39,
170                 VF610_PAD_PTB18__GPIO_40,
171                 VF610_PAD_PTB21__GPIO_43,
172                 VF610_PAD_PTB22__GPIO_44,
173                 VF610_PAD_PTC0__GPIO_45,
174                 VF610_PAD_PTC1__GPIO_46,
175                 VF610_PAD_PTC2__GPIO_47,
176                 VF610_PAD_PTC3__GPIO_48,
177                 VF610_PAD_PTC4__GPIO_49,
178                 VF610_PAD_PTC5__GPIO_50,
179                 VF610_PAD_PTC6__GPIO_51,
180                 VF610_PAD_PTC7__GPIO_52,
181                 VF610_PAD_PTC8__GPIO_53,
182                 VF610_PAD_PTD31__GPIO_63,
183                 VF610_PAD_PTD30__GPIO_64,
184                 VF610_PAD_PTD29__GPIO_65,
185                 VF610_PAD_PTD28__GPIO_66,
186                 VF610_PAD_PTD27__GPIO_67,
187                 VF610_PAD_PTD26__GPIO_68,
188                 VF610_PAD_PTD25__GPIO_69,
189                 VF610_PAD_PTD24__GPIO_70,
190                 VF610_PAD_PTD9__GPIO_88,
191                 VF610_PAD_PTD10__GPIO_89,
192                 VF610_PAD_PTD11__GPIO_90,
193                 VF610_PAD_PTD12__GPIO_91,
194                 VF610_PAD_PTD13__GPIO_92,
195                 VF610_PAD_PTB23__GPIO_93,
196                 VF610_PAD_PTB26__GPIO_96,
197                 VF610_PAD_PTB28__GPIO_98,
198                 VF610_PAD_PTC30__GPIO_103,
199                 VF610_PAD_PTA7__GPIO_134,
200         };
201
202         imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
203 }
204 #endif
205
206 #ifdef CONFIG_VIDEO_FSL_DCU_FB
207 static void setup_iomux_fsl_dcu(void)
208 {
209         static const iomux_v3_cfg_t dcu0_pads[] = {
210                 VF610_PAD_PTE0__DCU0_HSYNC,
211                 VF610_PAD_PTE1__DCU0_VSYNC,
212                 VF610_PAD_PTE2__DCU0_PCLK,
213                 VF610_PAD_PTE4__DCU0_DE,
214                 VF610_PAD_PTE5__DCU0_R0,
215                 VF610_PAD_PTE6__DCU0_R1,
216                 VF610_PAD_PTE7__DCU0_R2,
217                 VF610_PAD_PTE8__DCU0_R3,
218                 VF610_PAD_PTE9__DCU0_R4,
219                 VF610_PAD_PTE10__DCU0_R5,
220                 VF610_PAD_PTE11__DCU0_R6,
221                 VF610_PAD_PTE12__DCU0_R7,
222                 VF610_PAD_PTE13__DCU0_G0,
223                 VF610_PAD_PTE14__DCU0_G1,
224                 VF610_PAD_PTE15__DCU0_G2,
225                 VF610_PAD_PTE16__DCU0_G3,
226                 VF610_PAD_PTE17__DCU0_G4,
227                 VF610_PAD_PTE18__DCU0_G5,
228                 VF610_PAD_PTE19__DCU0_G6,
229                 VF610_PAD_PTE20__DCU0_G7,
230                 VF610_PAD_PTE21__DCU0_B0,
231                 VF610_PAD_PTE22__DCU0_B1,
232                 VF610_PAD_PTE23__DCU0_B2,
233                 VF610_PAD_PTE24__DCU0_B3,
234                 VF610_PAD_PTE25__DCU0_B4,
235                 VF610_PAD_PTE26__DCU0_B5,
236                 VF610_PAD_PTE27__DCU0_B6,
237                 VF610_PAD_PTE28__DCU0_B7,
238         };
239
240         imx_iomux_v3_setup_multiple_pads(dcu0_pads, ARRAY_SIZE(dcu0_pads));
241 }
242
243 static void setup_tcon(void)
244 {
245         setbits_le32(TCON0_BASE_ADDR, (1 << 29));
246 }
247 #endif
248
249 static inline int is_colibri_vf61(void)
250 {
251         struct mscm *mscm = (struct mscm *)MSCM_BASE_ADDR;
252
253         /*
254          * Detect board type by Level 2 Cache: VF50 don't have any
255          * Level 2 Cache.
256          */
257         return !!mscm->cpxcfg1;
258 }
259
260 static void clock_init(void)
261 {
262         struct ccm_reg *ccm = (struct ccm_reg *)CCM_BASE_ADDR;
263         struct anadig_reg *anadig = (struct anadig_reg *)ANADIG_BASE_ADDR;
264         u32 pfd_clk_sel, ddr_clk_sel;
265
266         clrsetbits_le32(&ccm->ccgr0, CCM_REG_CTRL_MASK,
267                         CCM_CCGR0_UART0_CTRL_MASK);
268 #ifdef CONFIG_FSL_DSPI
269         setbits_le32(&ccm->ccgr0, CCM_CCGR0_DSPI1_CTRL_MASK);
270 #endif
271         clrsetbits_le32(&ccm->ccgr1, CCM_REG_CTRL_MASK,
272                         CCM_CCGR1_PIT_CTRL_MASK | CCM_CCGR1_WDOGA5_CTRL_MASK);
273         clrsetbits_le32(&ccm->ccgr2, CCM_REG_CTRL_MASK,
274                         CCM_CCGR2_IOMUXC_CTRL_MASK | CCM_CCGR2_PORTA_CTRL_MASK |
275                         CCM_CCGR2_PORTB_CTRL_MASK | CCM_CCGR2_PORTC_CTRL_MASK |
276                         CCM_CCGR2_PORTD_CTRL_MASK | CCM_CCGR2_PORTE_CTRL_MASK);
277         clrsetbits_le32(&ccm->ccgr3, CCM_REG_CTRL_MASK,
278                         CCM_CCGR3_ANADIG_CTRL_MASK | CCM_CCGR3_SCSC_CTRL_MASK);
279         clrsetbits_le32(&ccm->ccgr4, CCM_REG_CTRL_MASK,
280                         CCM_CCGR4_WKUP_CTRL_MASK | CCM_CCGR4_CCM_CTRL_MASK |
281                         CCM_CCGR4_GPC_CTRL_MASK);
282         clrsetbits_le32(&ccm->ccgr6, CCM_REG_CTRL_MASK,
283                         CCM_CCGR6_OCOTP_CTRL_MASK | CCM_CCGR6_DDRMC_CTRL_MASK);
284         clrsetbits_le32(&ccm->ccgr7, CCM_REG_CTRL_MASK,
285                         CCM_CCGR7_SDHC1_CTRL_MASK);
286         clrsetbits_le32(&ccm->ccgr9, CCM_REG_CTRL_MASK,
287                         CCM_CCGR9_FEC0_CTRL_MASK | CCM_CCGR9_FEC1_CTRL_MASK);
288         clrsetbits_le32(&ccm->ccgr10, CCM_REG_CTRL_MASK,
289                         CCM_CCGR10_NFC_CTRL_MASK);
290
291 #ifdef CONFIG_USB_EHCI_VF
292         setbits_le32(&ccm->ccgr1, CCM_CCGR1_USBC0_CTRL_MASK);
293         setbits_le32(&ccm->ccgr7, CCM_CCGR7_USBC1_CTRL_MASK);
294
295         clrsetbits_le32(&anadig->pll3_ctrl, ANADIG_PLL3_CTRL_BYPASS |
296                         ANADIG_PLL3_CTRL_POWERDOWN |
297                         ANADIG_PLL3_CTRL_DIV_SELECT,
298                         ANADIG_PLL3_CTRL_ENABLE);
299         clrsetbits_le32(&anadig->pll7_ctrl, ANADIG_PLL7_CTRL_BYPASS |
300                         ANADIG_PLL7_CTRL_POWERDOWN |
301                         ANADIG_PLL7_CTRL_DIV_SELECT,
302                         ANADIG_PLL7_CTRL_ENABLE);
303 #endif
304
305         clrsetbits_le32(&anadig->pll5_ctrl, ANADIG_PLL5_CTRL_BYPASS |
306                         ANADIG_PLL5_CTRL_POWERDOWN, ANADIG_PLL5_CTRL_ENABLE |
307                         ANADIG_PLL5_CTRL_DIV_SELECT);
308
309         if (is_colibri_vf61()) {
310                 clrsetbits_le32(&anadig->pll2_ctrl, ANADIG_PLL5_CTRL_BYPASS |
311                                 ANADIG_PLL2_CTRL_POWERDOWN,
312                                 ANADIG_PLL2_CTRL_ENABLE |
313                                 ANADIG_PLL2_CTRL_DIV_SELECT);
314         }
315
316         clrsetbits_le32(&anadig->pll1_ctrl, ANADIG_PLL1_CTRL_POWERDOWN,
317                         ANADIG_PLL1_CTRL_ENABLE | ANADIG_PLL1_CTRL_DIV_SELECT);
318
319         clrsetbits_le32(&ccm->ccr, CCM_CCR_OSCNT_MASK,
320                         CCM_CCR_FIRC_EN | CCM_CCR_OSCNT(5));
321
322         /* See "Typical PLL Configuration" */
323         if (is_colibri_vf61()) {
324                 pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(1);
325                 ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(0);
326         } else {
327                 pfd_clk_sel = CCM_CCSR_PLL1_PFD_CLK_SEL(3);
328                 ddr_clk_sel = CCM_CCSR_DDRC_CLK_SEL(1);
329         }
330
331         clrsetbits_le32(&ccm->ccsr, CCM_REG_CTRL_MASK, pfd_clk_sel |
332                         CCM_CCSR_PLL2_PFD4_EN | CCM_CCSR_PLL2_PFD3_EN |
333                         CCM_CCSR_PLL2_PFD2_EN | CCM_CCSR_PLL2_PFD1_EN |
334                         CCM_CCSR_PLL1_PFD4_EN | CCM_CCSR_PLL1_PFD3_EN |
335                         CCM_CCSR_PLL1_PFD2_EN | CCM_CCSR_PLL1_PFD1_EN |
336                         ddr_clk_sel | CCM_CCSR_FAST_CLK_SEL(1) |
337                         CCM_CCSR_SYS_CLK_SEL(4));
338
339         clrsetbits_le32(&ccm->cacrr, CCM_REG_CTRL_MASK,
340                         CCM_CACRR_IPG_CLK_DIV(1) | CCM_CACRR_BUS_CLK_DIV(2) |
341                         CCM_CACRR_ARM_CLK_DIV(0));
342         clrsetbits_le32(&ccm->cscmr1, CCM_REG_CTRL_MASK,
343                         CCM_CSCMR1_ESDHC1_CLK_SEL(3) |
344                         CCM_CSCMR1_NFC_CLK_SEL(0));
345         clrsetbits_le32(&ccm->cscdr1, CCM_REG_CTRL_MASK,
346                         CCM_CSCDR1_RMII_CLK_EN);
347         clrsetbits_le32(&ccm->cscdr2, CCM_REG_CTRL_MASK,
348                         CCM_CSCDR2_ESDHC1_EN | CCM_CSCDR2_ESDHC1_CLK_DIV(0) |
349                         CCM_CSCDR2_NFC_EN);
350         clrsetbits_le32(&ccm->cscdr3, CCM_REG_CTRL_MASK,
351                         CCM_CSCDR3_NFC_PRE_DIV(3));
352         clrsetbits_le32(&ccm->cscmr2, CCM_REG_CTRL_MASK,
353                         CCM_CSCMR2_RMII_CLK_SEL(2));
354
355 #ifdef CONFIG_VIDEO_FSL_DCU_FB
356                 setbits_le32(&ccm->ccgr1, CCM_CCGR1_TCON0_CTRL_MASK);
357                 setbits_le32(&ccm->ccgr3, CCM_CCGR3_DCU0_CTRL_MASK);
358 #endif
359 }
360
361 static void mscm_init(void)
362 {
363         struct mscm_ir *mscmir = (struct mscm_ir *)MSCM_IR_BASE_ADDR;
364         int i;
365
366         for (i = 0; i < MSCM_IRSPRC_NUM; i++)
367                 writew(MSCM_IRSPRC_CP0_EN, &mscmir->irsprc[i]);
368 }
369
370 int board_early_init_f(void)
371 {
372         clock_init();
373         mscm_init();
374
375 #ifdef CONFIG_VYBRID_GPIO
376         setup_iomux_gpio();
377 #endif
378
379 #ifdef CONFIG_VIDEO_FSL_DCU_FB
380         setup_tcon();
381         setup_iomux_fsl_dcu();
382 #endif
383
384         return 0;
385 }
386
387 #ifdef CONFIG_BOARD_LATE_INIT
388 int board_late_init(void)
389 {
390         struct src *src = (struct src *)SRC_BASE_ADDR;
391
392         if (((src->sbmr2 & SRC_SBMR2_BMOD_MASK) >> SRC_SBMR2_BMOD_SHIFT)
393                         == SRC_SBMR2_BMOD_SERIAL) {
394                 printf("Serial Downloader recovery mode, disable autoboot\n");
395                 env_set("bootdelay", "-1");
396         }
397
398         return 0;
399 }
400 #endif /* CONFIG_BOARD_LATE_INIT */
401
402 int board_init(void)
403 {
404         struct scsc_reg *scsc = (struct scsc_reg *)SCSC_BASE_ADDR;
405
406         /* address of boot parameters */
407         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
408
409         /*
410          * Enable external 32K Oscillator
411          *
412          * The internal clock experiences significant drift
413          * so we must use the external oscillator in order
414          * to maintain correct time in the hwclock
415          */
416         setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
417
418         return 0;
419 }
420
421 int checkboard(void)
422 {
423         if (is_colibri_vf61())
424                 puts("Model: Toradex Colibri VF61\n");
425         else
426                 puts("Model: Toradex Colibri VF50\n");
427
428         return 0;
429 }
430
431 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
432 int ft_board_setup(void *blob, bd_t *bd)
433 {
434 #ifndef CONFIG_DM_VIDEO
435         int ret = 0;
436 #endif
437 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
438         static const struct node_info nodes[] = {
439                 { "fsl,vf610-nfc", MTD_DEV_TYPE_NAND, }, /* NAND flash */
440         };
441
442         /* Update partition nodes using info from mtdparts env var */
443         puts("   Updating MTD partitions...\n");
444         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
445 #endif
446 #if defined(CONFIG_VIDEO_FSL_DCU_FB) && !defined(CONFIG_DM_VIDEO)
447         ret = fsl_dcu_fixedfb_setup(blob);
448         if (ret)
449                 return ret;
450 #endif
451
452         return ft_common_board_setup(blob, bd);
453 }
454 #endif
455
456 /*
457  * Backlight off before OS handover
458  */
459 void board_preboot_os(void)
460 {
461         gpio_request(PTC0_GPIO_45, "BL_ON");
462         gpio_direction_output(PTC0_GPIO_45, 0);
463 }