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Patrick Bruenn98d62e62016-11-04 11:57:02 +01001/*
2 * Copyright (C) 2015 Beckhoff Automation GmbH & Co. KG
3 * Patrick Bruenn <p.bruenn@beckhoff.com>
4 *
5 * Based on <u-boot>/board/freescale/mx53loco/mx53loco.c
6 * Copyright (C) 2011 Freescale Semiconductor, Inc.
7 *
8 * SPDX-License-Identifier: GPL-2.0+
9 */
10
11#include <common.h>
Simon Glass9d922452017-05-17 17:18:03 -060012#include <dm.h>
Patrick Bruenn98d62e62016-11-04 11:57:02 +010013#include <asm/io.h>
14#include <asm/arch/imx-regs.h>
15#include <asm/arch/sys_proto.h>
16#include <asm/arch/crm_regs.h>
17#include <asm/arch/clock.h>
18#include <asm/arch/iomux-mx53.h>
19#include <asm/arch/clock.h>
Stefano Babic552a8482017-06-29 10:16:06 +020020#include <asm/mach-imx/mx5_video.h>
Patrick Bruenn98d62e62016-11-04 11:57:02 +010021#include <ACEX1K.h>
22#include <netdev.h>
23#include <i2c.h>
24#include <mmc.h>
25#include <fsl_esdhc.h>
26#include <asm/gpio.h>
27#include <linux/fb.h>
28#include <ipu_pixfmt.h>
29#include <fs.h>
Patrick Bruenn98d62e62016-11-04 11:57:02 +010030#include <dm/platform_data/serial_mxc.h>
31
32enum LED_GPIOS {
33 GPIO_SD1_CD = IMX_GPIO_NR(1, 1),
34 GPIO_SD2_CD = IMX_GPIO_NR(1, 4),
35 GPIO_LED_SD2_R = IMX_GPIO_NR(3, 16),
36 GPIO_LED_SD2_B = IMX_GPIO_NR(3, 17),
37 GPIO_LED_SD2_G = IMX_GPIO_NR(3, 18),
38 GPIO_LED_SD1_R = IMX_GPIO_NR(3, 19),
39 GPIO_LED_SD1_B = IMX_GPIO_NR(3, 20),
40 GPIO_LED_SD1_G = IMX_GPIO_NR(3, 21),
41 GPIO_LED_PWR_R = IMX_GPIO_NR(3, 22),
42 GPIO_LED_PWR_B = IMX_GPIO_NR(3, 23),
43 GPIO_LED_PWR_G = IMX_GPIO_NR(3, 24),
44 GPIO_SUPS_INT = IMX_GPIO_NR(3, 31),
45 GPIO_C3_CONFIG = IMX_GPIO_NR(6, 8),
46 GPIO_C3_STATUS = IMX_GPIO_NR(6, 7),
47 GPIO_C3_DONE = IMX_GPIO_NR(6, 9),
48};
49
50#define CCAT_BASE_ADDR ((void *)0xf0000000)
51#define CCAT_END_ADDR (CCAT_BASE_ADDR + (1024 * 1024 * 32))
52#define CCAT_SIZE 1191788
53#define CCAT_SIGN_ADDR (CCAT_BASE_ADDR + 12)
54static const char CCAT_SIGNATURE[] = "CCAT";
55
56static const u32 CCAT_MODE_CONFIG = 0x0024DC81;
57static const u32 CCAT_MODE_RUN = 0x0033DC8F;
58
59DECLARE_GLOBAL_DATA_PTR;
60
61static uint32_t mx53_dram_size[2];
62
63phys_size_t get_effective_memsize(void)
64{
65 /*
66 * WARNING: We must override get_effective_memsize() function here
67 * to report only the size of the first DRAM bank. This is to make
68 * U-Boot relocator place U-Boot into valid memory, that is, at the
69 * end of the first DRAM bank. If we did not override this function
70 * like so, U-Boot would be placed at the address of the first DRAM
71 * bank + total DRAM size - sizeof(uboot), which in the setup where
72 * each DRAM bank contains 512MiB of DRAM would result in placing
73 * U-Boot into invalid memory area close to the end of the first
74 * DRAM bank.
75 */
76 return mx53_dram_size[0];
77}
78
79int dram_init(void)
80{
81 mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
82 mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
83
84 gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
85
86 return 0;
87}
88
Simon Glass76b00ac2017-03-31 08:40:32 -060089int dram_init_banksize(void)
Patrick Bruenn98d62e62016-11-04 11:57:02 +010090{
91 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
92 gd->bd->bi_dram[0].size = mx53_dram_size[0];
93
94 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
95 gd->bd->bi_dram[1].size = mx53_dram_size[1];
Simon Glass76b00ac2017-03-31 08:40:32 -060096
97 return 0;
Patrick Bruenn98d62e62016-11-04 11:57:02 +010098}
99
100u32 get_board_rev(void)
101{
102 struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
103 struct fuse_bank *bank = &iim->bank[0];
104 struct fuse_bank0_regs *fuse =
105 (struct fuse_bank0_regs *)bank->fuse_regs;
106
107 int rev = readl(&fuse->gp[6]);
108
109 return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
110}
111
112/*
113 * Set CCAT mode
114 * @mode: use CCAT_MODE_CONFIG or CCAT_MODE_RUN
115 */
116void weim_cs0_settings(u32 mode)
117{
118 struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
119
120 writel(0x0, &weim_regs->cs0gcr1);
121 writel(mode, &weim_regs->cs0gcr1);
122 writel(0x00001002, &weim_regs->cs0gcr2);
123
124 writel(0x04000000, &weim_regs->cs0rcr1);
125 writel(0x00000000, &weim_regs->cs0rcr2);
126
127 writel(0x04000000, &weim_regs->cs0wcr1);
128 writel(0x00000000, &weim_regs->cs0wcr2);
129}
130
131static void setup_gpio_eim(void)
132{
133 gpio_direction_input(GPIO_C3_STATUS);
134 gpio_direction_input(GPIO_C3_DONE);
135 gpio_direction_output(GPIO_C3_CONFIG, 1);
136
137 weim_cs0_settings(CCAT_MODE_RUN);
138}
139
140static void setup_gpio_sups(void)
141{
142 gpio_direction_input(GPIO_SUPS_INT);
143
144 static const int BLINK_INTERVALL = 50000;
145 int status = 1;
146 while (gpio_get_value(GPIO_SUPS_INT)) {
147 /* signal "CX SUPS power fail" */
148 gpio_set_value(GPIO_LED_PWR_R,
149 (++status / BLINK_INTERVALL) % 2);
150 }
151
152 /* signal "CX power up" */
153 gpio_set_value(GPIO_LED_PWR_R, 1);
154}
155
156static void setup_gpio_leds(void)
157{
158 gpio_direction_output(GPIO_LED_SD2_R, 0);
159 gpio_direction_output(GPIO_LED_SD2_B, 0);
160 gpio_direction_output(GPIO_LED_SD2_G, 0);
161 gpio_direction_output(GPIO_LED_SD1_R, 0);
162 gpio_direction_output(GPIO_LED_SD1_B, 0);
163 gpio_direction_output(GPIO_LED_SD1_G, 0);
164 gpio_direction_output(GPIO_LED_PWR_R, 0);
165 gpio_direction_output(GPIO_LED_PWR_B, 0);
166 gpio_direction_output(GPIO_LED_PWR_G, 0);
167}
168
169#ifdef CONFIG_USB_EHCI_MX5
170int board_ehci_hcd_init(int port)
171{
172 /* request VBUS power enable pin, GPIO7_8 */
173 gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
174 return 0;
175}
176#endif
177
178#ifdef CONFIG_FSL_ESDHC
179struct fsl_esdhc_cfg esdhc_cfg[2] = {
180 {MMC_SDHC1_BASE_ADDR},
181 {MMC_SDHC2_BASE_ADDR},
182};
183
184int board_mmc_getcd(struct mmc *mmc)
185{
186 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
187 int ret;
188
189 gpio_direction_input(GPIO_SD1_CD);
190 gpio_direction_input(GPIO_SD2_CD);
191
192 if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
193 ret = !gpio_get_value(GPIO_SD1_CD);
194 else
195 ret = !gpio_get_value(GPIO_SD2_CD);
196
197 return ret;
198}
199
200int board_mmc_init(bd_t *bis)
201{
202 u32 index;
203 int ret;
204
205 esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
206 esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
207
208 for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
209 switch (index) {
210 case 0:
211 break;
212 case 1:
213 break;
214 default:
215 printf("Warning: you configured more ESDHC controller(%d) as supported by the board(2)\n",
216 CONFIG_SYS_FSL_ESDHC_NUM);
217 return -EINVAL;
218 }
219 ret = fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
220 if (ret)
221 return ret;
222 }
223
224 return 0;
225}
226#endif
227
228static int power_init(void)
229{
230 /* nothing to do on CX9020 */
231 return 0;
232}
233
234static void clock_1GHz(void)
235{
236 int ret;
237 u32 ref_clk = MXC_HCLK;
238 /*
239 * After increasing voltage to 1.25V, we can switch
240 * CPU clock to 1GHz and DDR to 400MHz safely
241 */
242 ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
243 if (ret)
244 printf("CPU: Switch CPU clock to 1GHZ failed\n");
245
246 ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
247 ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
248 if (ret)
249 printf("CPU: Switch DDR clock to 400MHz failed\n");
250}
251
252int board_early_init_f(void)
253{
254 setup_gpio_leds();
255 setup_gpio_sups();
256 setup_gpio_eim();
257 setup_iomux_lcd();
258
259 return 0;
260}
261
262/*
263 * Do not overwrite the console
264 * Use always serial for U-Boot console
265 */
266int overwrite_console(void)
267{
268 return 1;
269}
270
271int board_init(void)
272{
273 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
274
275 mxc_set_sata_internal_clock();
276
277 return 0;
278}
279
280int checkboard(void)
281{
282 puts("Board: Beckhoff CX9020\n");
283
284 return 0;
285}
286
287static int ccat_config_fn(int assert_config, int flush, int cookie)
288{
289 /* prepare FPGA for programming */
290 weim_cs0_settings(CCAT_MODE_CONFIG);
291 gpio_set_value(GPIO_C3_CONFIG, 0);
292 udelay(1);
293 gpio_set_value(GPIO_C3_CONFIG, 1);
294 udelay(230);
295
296 return FPGA_SUCCESS;
297}
298
299static int ccat_status_fn(int cookie)
300{
301 return FPGA_FAIL;
302}
303
304static int ccat_write_fn(const void *buf, size_t buf_len, int flush, int cookie)
305{
306 const uint8_t *const buffer = buf;
307
308 /* program CCAT */
309 int i;
310 for (i = 0; i < buf_len; ++i)
311 writeb(buffer[i], CCAT_BASE_ADDR);
312
313 writeb(0xff, CCAT_BASE_ADDR);
314 writeb(0xff, CCAT_BASE_ADDR);
315
316 return FPGA_SUCCESS;
317}
318
319static int ccat_done_fn(int cookie)
320{
321 /* programming complete? */
322 return gpio_get_value(GPIO_C3_DONE);
323}
324
325static int ccat_post_fn(int cookie)
326{
327 /* switch to FPGA run mode */
328 weim_cs0_settings(CCAT_MODE_RUN);
329 invalidate_dcache_range((ulong) CCAT_BASE_ADDR, (ulong) CCAT_END_ADDR);
330
331 if (memcmp(CCAT_SIGN_ADDR, CCAT_SIGNATURE, sizeof(CCAT_SIGNATURE))) {
332 printf("Verifing CCAT firmware failed, signature not found\n");
333 return FPGA_FAIL;
334 }
335
336 /* signal "CX booting OS" */
337 gpio_set_value(GPIO_LED_PWR_R, 1);
338 gpio_set_value(GPIO_LED_PWR_G, 1);
339 gpio_set_value(GPIO_LED_PWR_B, 0);
340 return FPGA_SUCCESS;
341}
342
343static Altera_CYC2_Passive_Serial_fns ccat_fns = {
344 .config = ccat_config_fn,
345 .status = ccat_status_fn,
346 .done = ccat_done_fn,
347 .write = ccat_write_fn,
348 .abort = ccat_post_fn,
349 .post = ccat_post_fn,
350};
351
352static Altera_desc ccat_fpga = {
353 .family = Altera_CYC2,
354 .iface = passive_serial,
355 .size = CCAT_SIZE,
356 .iface_fns = &ccat_fns,
357 .base = CCAT_BASE_ADDR,
358};
359
360int board_late_init(void)
361{
362 if (!power_init())
363 clock_1GHz();
364
365 fpga_init();
366 fpga_add(fpga_altera, &ccat_fpga);
367
368 return 0;
369}