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Heiko Schocherc0dcece2013-08-19 16:39:01 +02001/*
2 * Board functions for TI AM335X based rut board
3 * (C) Copyright 2013 Siemens Schweiz AG
4 * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
5 *
6 * Based on:
7 * u-boot:/board/ti/am335x/board.c
8 *
9 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
10 *
11 * SPDX-License-Identifier: GPL-2.0+
12 */
13
14#include <common.h>
15#include <errno.h>
16#include <spi.h>
17#include <spl.h>
18#include <asm/arch/cpu.h>
19#include <asm/arch/hardware.h>
20#include <asm/arch/omap.h>
21#include <asm/arch/ddr_defs.h>
22#include <asm/arch/clock.h>
23#include <asm/arch/gpio.h>
24#include <asm/arch/mmc_host_def.h>
25#include <asm/arch/sys_proto.h>
26#include <asm/io.h>
27#include <asm/emif.h>
28#include <asm/gpio.h>
29#include <i2c.h>
30#include <miiphy.h>
31#include <cpsw.h>
32#include <video.h>
33#include <watchdog.h>
34#include "board.h"
35#include "../common/factoryset.h"
36#include "../../../drivers/video/da8xx-fb.h"
37
38DECLARE_GLOBAL_DATA_PTR;
39
40/*
41 * Read header information from EEPROM into global structure.
42 */
43static int read_eeprom(void)
44{
45 return 0;
46}
47
48#ifdef CONFIG_SPL_BUILD
49static void board_init_ddr(void)
50{
51struct emif_regs rut_ddr3_emif_reg_data = {
52 .sdram_config = 0x61C04AB2,
53 .sdram_tim1 = 0x0888A39B,
54 .sdram_tim2 = 0x26337FDA,
55 .sdram_tim3 = 0x501F830F,
56 .emif_ddr_phy_ctlr_1 = 0x6,
57 .zq_config = 0x50074BE4,
58 .ref_ctrl = 0x93B,
59};
60
61struct ddr_data rut_ddr3_data = {
62 .datardsratio0 = 0x3b,
63 .datawdsratio0 = 0x85,
64 .datafwsratio0 = 0x100,
65 .datawrsratio0 = 0xc1,
Heiko Schocherc0dcece2013-08-19 16:39:01 +020066};
67
68struct cmd_control rut_ddr3_cmd_ctrl_data = {
69 .cmd0csratio = 0x40,
Heiko Schocherc0dcece2013-08-19 16:39:01 +020070 .cmd0iclkout = 1,
71 .cmd1csratio = 0x40,
Heiko Schocherc0dcece2013-08-19 16:39:01 +020072 .cmd1iclkout = 1,
73 .cmd2csratio = 0x40,
Heiko Schocherc0dcece2013-08-19 16:39:01 +020074 .cmd2iclkout = 1,
75};
76
Lokesh Vutla965de8b2013-12-10 15:02:21 +053077const struct ctrl_ioregs ioregs = {
78 .cm0ioctl = RUT_IOCTRL_VAL,
79 .cm1ioctl = RUT_IOCTRL_VAL,
80 .cm2ioctl = RUT_IOCTRL_VAL,
81 .dt0ioctl = RUT_IOCTRL_VAL,
82 .dt1ioctl = RUT_IOCTRL_VAL,
83};
84
85 config_ddr(DDR_PLL_FREQ, &ioregs, &rut_ddr3_data,
Heiko Schocherc0dcece2013-08-19 16:39:01 +020086 &rut_ddr3_cmd_ctrl_data, &rut_ddr3_emif_reg_data, 0);
87}
88
Samuel Egli56eb3da2013-11-04 14:05:03 +010089static int request_and_pulse_reset(int gpio, const char *name)
90{
91 int ret;
92 const int delay_us = 2000; /* 2ms */
93
94 ret = gpio_request(gpio, name);
95 if (ret < 0) {
96 printf("%s: Unable to request %s\n", __func__, name);
97 goto err;
98 }
99
100 ret = gpio_direction_output(gpio, 0);
101 if (ret < 0) {
102 printf("%s: Unable to set %s as output\n", __func__, name);
103 goto err_free_gpio;
104 }
105
106 udelay(delay_us);
107
108 gpio_set_value(gpio, 1);
109
110 return 0;
111
112err_free_gpio:
113 gpio_free(gpio);
114err:
115 return ret;
116}
117
118#define GPIO_TO_PIN(bank, gpio) (32 * (bank) + (gpio))
119#define ETH_PHY_RESET_GPIO GPIO_TO_PIN(2, 18)
120#define MAXTOUCH_RESET_GPIO GPIO_TO_PIN(3, 18)
121#define DISPLAY_RESET_GPIO GPIO_TO_PIN(3, 19)
122
123#define REQUEST_AND_PULSE_RESET(N) \
124 request_and_pulse_reset(N, #N);
125
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200126static void spl_siemens_board_init(void)
127{
Samuel Egli56eb3da2013-11-04 14:05:03 +0100128 REQUEST_AND_PULSE_RESET(ETH_PHY_RESET_GPIO);
129 REQUEST_AND_PULSE_RESET(MAXTOUCH_RESET_GPIO);
130 REQUEST_AND_PULSE_RESET(DISPLAY_RESET_GPIO);
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200131}
132#endif /* if def CONFIG_SPL_BUILD */
133
134#if defined(CONFIG_DRIVER_TI_CPSW)
135static void cpsw_control(int enabled)
136{
137 /* VTP can be added here */
138
139 return;
140}
141
142static struct cpsw_slave_data cpsw_slaves[] = {
143 {
144 .slave_reg_ofs = 0x208,
145 .sliver_reg_ofs = 0xd80,
Mugunthan V N9c653aa2014-02-18 07:31:52 -0500146 .phy_addr = 1,
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200147 .phy_if = PHY_INTERFACE_MODE_RMII,
148 },
149 {
150 .slave_reg_ofs = 0x308,
151 .sliver_reg_ofs = 0xdc0,
Mugunthan V N9c653aa2014-02-18 07:31:52 -0500152 .phy_addr = 0,
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200153 .phy_if = PHY_INTERFACE_MODE_RMII,
154 },
155};
156
157static struct cpsw_platform_data cpsw_data = {
158 .mdio_base = CPSW_MDIO_BASE,
159 .cpsw_base = CPSW_BASE,
160 .mdio_div = 0xff,
161 .channels = 8,
162 .cpdma_reg_ofs = 0x800,
163 .slaves = 1,
164 .slave_data = cpsw_slaves,
165 .ale_reg_ofs = 0xd00,
166 .ale_entries = 1024,
167 .host_port_reg_ofs = 0x108,
168 .hw_stats_reg_ofs = 0x900,
169 .bd_ram_ofs = 0x2000,
170 .mac_control = (1 << 5),
171 .control = cpsw_control,
172 .host_port_num = 0,
173 .version = CPSW_CTRL_VERSION_2,
174};
175
176#if defined(CONFIG_DRIVER_TI_CPSW) || \
177 (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
178int board_eth_init(bd_t *bis)
179{
180 struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
181 int n = 0;
182 int rv;
183
184#ifndef CONFIG_SPL_BUILD
185 factoryset_setenv();
186#endif
187
188 /* Set rgmii mode and enable rmii clock to be sourced from chip */
189 writel((RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE), &cdev->miisel);
190
191 rv = cpsw_register(&cpsw_data);
192 if (rv < 0)
193 printf("Error %d registering CPSW switch\n", rv);
194 else
195 n += rv;
196 return n;
197}
198#endif /* #if defined(CONFIG_DRIVER_TI_CPSW) */
199#endif /* #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) */
200
201#if defined(CONFIG_HW_WATCHDOG)
202static bool hw_watchdog_init_done;
203static int hw_watchdog_trigger_level;
204
205void hw_watchdog_reset(void)
206{
207 if (!hw_watchdog_init_done)
208 return;
209
210 hw_watchdog_trigger_level = hw_watchdog_trigger_level ? 0 : 1;
211 gpio_set_value(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
212}
213
214void hw_watchdog_init(void)
215{
216 gpio_request(WATCHDOG_TRIGGER_GPIO, "watchdog_trigger");
217 gpio_direction_output(WATCHDOG_TRIGGER_GPIO, hw_watchdog_trigger_level);
218
219 hw_watchdog_reset();
220
221 hw_watchdog_init_done = 1;
222}
223#endif /* defined(CONFIG_HW_WATCHDOG) */
224
225#if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
226static struct da8xx_panel lcd_panels[] = {
227 /* FORMIKE, 4.3", 480x800, KWH043MC17-F01 */
228 [0] = {
229 .name = "KWH043MC17-F01",
230 .width = 480,
231 .height = 800,
232 .hfp = 50, /* no spec, "don't care" values */
233 .hbp = 50,
234 .hsw = 50,
235 .vfp = 50,
236 .vbp = 50,
237 .vsw = 50,
238 .pxl_clk = 35910000, /* tCYCD=20ns, max 50MHz, 60fps */
239 .invert_pxl_clk = 1,
240 },
241 /* FORMIKE, 4.3", 480x800, KWH043ST20-F01 */
242 [1] = {
243 .name = "KWH043ST20-F01",
244 .width = 480,
245 .height = 800,
246 .hfp = 50, /* no spec, "don't care" values */
247 .hbp = 50,
248 .hsw = 50,
249 .vfp = 50,
250 .vbp = 50,
251 .vsw = 50,
252 .pxl_clk = 35910000, /* tCYCD=20ns, max 50MHz, 60fps */
253 .invert_pxl_clk = 1,
254 },
255 /* Multi-Inno, 4.3", 480x800, MI0430VT-1 */
256 [2] = {
257 .name = "MI0430VT-1",
258 .width = 480,
259 .height = 800,
260 .hfp = 50, /* no spec, "don't care" values */
261 .hbp = 50,
262 .hsw = 50,
263 .vfp = 50,
264 .vbp = 50,
265 .vsw = 50,
266 .pxl_clk = 35910000, /* tCYCD=20ns, max 50MHz, 60fps */
267 .invert_pxl_clk = 1,
268 },
269};
270
271static const struct display_panel disp_panels[] = {
272 [0] = {
273 WVGA,
274 16, /* RGB 888 */
275 16,
276 COLOR_ACTIVE,
277 },
278 [1] = {
279 WVGA,
280 16, /* RGB 888 */
281 16,
282 COLOR_ACTIVE,
283 },
284 [2] = {
285 WVGA,
286 24, /* RGB 888 */
287 16,
288 COLOR_ACTIVE,
289 },
290};
291
292static const struct lcd_ctrl_config lcd_cfgs[] = {
293 [0] = {
294 &disp_panels[0],
295 .ac_bias = 255,
296 .ac_bias_intrpt = 0,
297 .dma_burst_sz = 16,
298 .bpp = 16,
299 .fdd = 0x80,
300 .tft_alt_mode = 0,
301 .stn_565_mode = 0,
302 .mono_8bit_mode = 0,
303 .invert_line_clock = 1,
304 .invert_frm_clock = 1,
305 .sync_edge = 0,
306 .sync_ctrl = 1,
307 .raster_order = 0,
308 },
309 [1] = {
310 &disp_panels[1],
311 .ac_bias = 255,
312 .ac_bias_intrpt = 0,
313 .dma_burst_sz = 16,
314 .bpp = 16,
315 .fdd = 0x80,
316 .tft_alt_mode = 0,
317 .stn_565_mode = 0,
318 .mono_8bit_mode = 0,
319 .invert_line_clock = 1,
320 .invert_frm_clock = 1,
321 .sync_edge = 0,
322 .sync_ctrl = 1,
323 .raster_order = 0,
324 },
325 [2] = {
326 &disp_panels[2],
327 .ac_bias = 255,
328 .ac_bias_intrpt = 0,
329 .dma_burst_sz = 16,
330 .bpp = 24,
331 .fdd = 0x80,
332 .tft_alt_mode = 0,
333 .stn_565_mode = 0,
334 .mono_8bit_mode = 0,
335 .invert_line_clock = 1,
336 .invert_frm_clock = 1,
337 .sync_edge = 0,
338 .sync_ctrl = 1,
339 .raster_order = 0,
340 },
341
342};
343
344/* no console on this board */
345int board_cfb_skip(void)
346{
347 return 1;
348}
349
350#define PLL_GET_M(v) ((v >> 8) & 0x7ff)
351#define PLL_GET_N(v) (v & 0x7f)
352
353static struct dpll_regs dpll_lcd_regs = {
354 .cm_clkmode_dpll = CM_WKUP + 0x98,
355 .cm_idlest_dpll = CM_WKUP + 0x48,
356 .cm_clksel_dpll = CM_WKUP + 0x54,
357};
358
359static int get_clk(struct dpll_regs *dpll_regs)
360{
361 unsigned int val;
362 unsigned int m, n;
363 int f = 0;
364
365 val = readl(dpll_regs->cm_clksel_dpll);
366 m = PLL_GET_M(val);
367 n = PLL_GET_N(val);
368 f = (m * V_OSCK) / n;
369
370 return f;
371};
372
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200373int clk_get(int clk)
374{
375 return get_clk(&dpll_lcd_regs);
376};
377
378static int conf_disp_pll(int m, int n)
379{
380 struct cm_perpll *cmper = (struct cm_perpll *)CM_PER;
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200381 struct dpll_params dpll_lcd = {m, n, -1, -1, -1, -1, -1};
382#if defined(DISPL_PLL_SPREAD_SPECTRUM)
383 struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP;
384#endif
385
386 u32 *const clk_domains[] = {
387 &cmper->lcdclkctrl,
388 0
389 };
390 u32 *const clk_modules_explicit_en[] = {
391 &cmper->lcdclkctrl,
392 &cmper->lcdcclkstctrl,
393 &cmper->spi1clkctrl,
394 0
395 };
396 do_enable_clocks(clk_domains, clk_modules_explicit_en, 1);
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200397
398 do_setup_dpll(&dpll_lcd_regs, &dpll_lcd);
399
400#if defined(DISPL_PLL_SPREAD_SPECTRUM)
401 writel(0x64, &cmwkup->resv6[3]); /* 0x50 */
402 writel(0x800, &cmwkup->resv6[2]); /* 0x4c */
Yegor Yefremov4b97bcb2014-04-19 22:12:18 +0200403 writel(readl(&cmwkup->clkmoddplldisp) | CM_CLKMODE_DPLL_SSC_EN_MASK,
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200404 &cmwkup->clkmoddplldisp); /* 0x98 */
405#endif
406 return 0;
407}
408
409static int set_gpio(int gpio, int state)
410{
411 gpio_request(gpio, "temp");
412 gpio_direction_output(gpio, state);
413 gpio_set_value(gpio, state);
414 gpio_free(gpio);
415 return 0;
416}
417
418static int enable_lcd(void)
419{
420 unsigned char buf[1];
421
Samuel Egli56eb3da2013-11-04 14:05:03 +0100422 set_gpio(BOARD_LCD_RESET, 0);
423 mdelay(1);
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200424 set_gpio(BOARD_LCD_RESET, 1);
Samuel Egli56eb3da2013-11-04 14:05:03 +0100425 mdelay(1);
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200426
427 /* spi lcd init */
Samuel Egli56eb3da2013-11-04 14:05:03 +0100428 kwh043st20_f01_spi_startup(1, 0, 5000000, SPI_MODE_0);
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200429
430 /* backlight on */
431 buf[0] = 0xf;
432 i2c_write(0x24, 0x7, 1, buf, 1);
433 buf[0] = 0x3f;
434 i2c_write(0x24, 0x8, 1, buf, 1);
435 return 0;
436}
437
438int arch_early_init_r(void)
439{
440 enable_lcd();
441 return 0;
442}
443
444static int board_video_init(void)
445{
446 int i;
447 int anzdisp = ARRAY_SIZE(lcd_panels);
448 int display = 1;
449
450 for (i = 0; i < anzdisp; i++) {
451 if (strncmp((const char *)factory_dat.disp_name,
452 lcd_panels[i].name,
453 strlen((const char *)factory_dat.disp_name)) == 0) {
454 printf("DISPLAY: %s\n", factory_dat.disp_name);
455 break;
456 }
457 }
458 if (i == anzdisp) {
459 i = 1;
460 printf("%s: %s not found, using default %s\n", __func__,
461 factory_dat.disp_name, lcd_panels[i].name);
462 }
Samuel Egli56eb3da2013-11-04 14:05:03 +0100463 conf_disp_pll(24, 1);
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200464 da8xx_video_init(&lcd_panels[display], &lcd_cfgs[display],
465 lcd_cfgs[display].bpp);
466
467 return 0;
468}
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200469#endif /* ifdef CONFIG_VIDEO */
Heiko Schocher0c331eb2014-11-18 11:51:06 +0100470
471#ifdef CONFIG_BOARD_LATE_INIT
472int board_late_init(void)
473{
474 int ret;
475 char tmp[2 * MAX_STRING_LENGTH + 2];
476
477 omap_nand_switch_ecc(1, 8);
478
479 if (factory_dat.asn[0] != 0)
480 sprintf(tmp, "%s_%s", factory_dat.asn,
481 factory_dat.comp_version);
482 else
483 sprintf(tmp, "QMX7.E38_4.0");
484
485 ret = setenv("boardid", tmp);
486 if (ret)
487 printf("error setting board id\n");
488
489 return 0;
490}
491#endif
492
Heiko Schocherc0dcece2013-08-19 16:39:01 +0200493#include "../common/board.c"