blob: 9450d925f6f23021d076106eeab770b6d8e288cd [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Patrick Bruennba81b042016-11-04 11:57:02 +01002/*
3 * Copyright (C) 2015 Beckhoff Automation GmbH & Co. KG
4 * Patrick Bruenn <p.bruenn@beckhoff.com>
5 *
6 * Based on <u-boot>/board/freescale/mx53loco/mx53loco.c
7 * Copyright (C) 2011 Freescale Semiconductor, Inc.
Patrick Bruennba81b042016-11-04 11:57:02 +01008 */
9
10#include <common.h>
Patrick Bruennba81b042016-11-04 11:57:02 +010011#include <asm/arch/sys_proto.h>
Patrick Bruennba81b042016-11-04 11:57:02 +010012#include <asm/arch/clock.h>
13#include <asm/arch/iomux-mx53.h>
Stefano Babic33731bc2017-06-29 10:16:06 +020014#include <asm/mach-imx/mx5_video.h>
Patrick Bruennba81b042016-11-04 11:57:02 +010015#include <ACEX1K.h>
Patrick Bruennba81b042016-11-04 11:57:02 +010016#include <asm/gpio.h>
Patrick Bruennba81b042016-11-04 11:57:02 +010017
18enum LED_GPIOS {
19 GPIO_SD1_CD = IMX_GPIO_NR(1, 1),
20 GPIO_SD2_CD = IMX_GPIO_NR(1, 4),
21 GPIO_LED_SD2_R = IMX_GPIO_NR(3, 16),
22 GPIO_LED_SD2_B = IMX_GPIO_NR(3, 17),
23 GPIO_LED_SD2_G = IMX_GPIO_NR(3, 18),
24 GPIO_LED_SD1_R = IMX_GPIO_NR(3, 19),
25 GPIO_LED_SD1_B = IMX_GPIO_NR(3, 20),
26 GPIO_LED_SD1_G = IMX_GPIO_NR(3, 21),
27 GPIO_LED_PWR_R = IMX_GPIO_NR(3, 22),
28 GPIO_LED_PWR_B = IMX_GPIO_NR(3, 23),
29 GPIO_LED_PWR_G = IMX_GPIO_NR(3, 24),
30 GPIO_SUPS_INT = IMX_GPIO_NR(3, 31),
31 GPIO_C3_CONFIG = IMX_GPIO_NR(6, 8),
32 GPIO_C3_STATUS = IMX_GPIO_NR(6, 7),
33 GPIO_C3_DONE = IMX_GPIO_NR(6, 9),
34};
35
36#define CCAT_BASE_ADDR ((void *)0xf0000000)
37#define CCAT_END_ADDR (CCAT_BASE_ADDR + (1024 * 1024 * 32))
38#define CCAT_SIZE 1191788
39#define CCAT_SIGN_ADDR (CCAT_BASE_ADDR + 12)
40static const char CCAT_SIGNATURE[] = "CCAT";
41
42static const u32 CCAT_MODE_CONFIG = 0x0024DC81;
43static const u32 CCAT_MODE_RUN = 0x0033DC8F;
44
45DECLARE_GLOBAL_DATA_PTR;
46
Patrick Bruennba81b042016-11-04 11:57:02 +010047u32 get_board_rev(void)
48{
49 struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
50 struct fuse_bank *bank = &iim->bank[0];
51 struct fuse_bank0_regs *fuse =
52 (struct fuse_bank0_regs *)bank->fuse_regs;
53
54 int rev = readl(&fuse->gp[6]);
55
56 return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
57}
58
59/*
60 * Set CCAT mode
61 * @mode: use CCAT_MODE_CONFIG or CCAT_MODE_RUN
62 */
63void weim_cs0_settings(u32 mode)
64{
65 struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
66
67 writel(0x0, &weim_regs->cs0gcr1);
68 writel(mode, &weim_regs->cs0gcr1);
69 writel(0x00001002, &weim_regs->cs0gcr2);
70
71 writel(0x04000000, &weim_regs->cs0rcr1);
72 writel(0x00000000, &weim_regs->cs0rcr2);
73
74 writel(0x04000000, &weim_regs->cs0wcr1);
75 writel(0x00000000, &weim_regs->cs0wcr2);
76}
77
78static void setup_gpio_eim(void)
79{
Steffen Dirkwinkel098e9ef2019-04-17 13:57:14 +020080 gpio_request(GPIO_C3_STATUS, "GPIO_C3_STATUS");
81 gpio_request(GPIO_C3_DONE, "GPIO_C3_DONE");
82 gpio_request(GPIO_C3_CONFIG, "GPIO_C3_CONFIG");
Patrick Bruennba81b042016-11-04 11:57:02 +010083 gpio_direction_input(GPIO_C3_STATUS);
84 gpio_direction_input(GPIO_C3_DONE);
85 gpio_direction_output(GPIO_C3_CONFIG, 1);
86
87 weim_cs0_settings(CCAT_MODE_RUN);
88}
89
90static void setup_gpio_sups(void)
91{
Steffen Dirkwinkel098e9ef2019-04-17 13:57:14 +020092 gpio_request(GPIO_SUPS_INT, "GPIO_SUPS_INT");
Patrick Bruennba81b042016-11-04 11:57:02 +010093 gpio_direction_input(GPIO_SUPS_INT);
94
95 static const int BLINK_INTERVALL = 50000;
96 int status = 1;
97 while (gpio_get_value(GPIO_SUPS_INT)) {
98 /* signal "CX SUPS power fail" */
99 gpio_set_value(GPIO_LED_PWR_R,
100 (++status / BLINK_INTERVALL) % 2);
101 }
102
103 /* signal "CX power up" */
104 gpio_set_value(GPIO_LED_PWR_R, 1);
105}
106
107static void setup_gpio_leds(void)
108{
Steffen Dirkwinkel098e9ef2019-04-17 13:57:14 +0200109 gpio_request(GPIO_LED_SD2_R, "GPIO_LED_SD2_R");
110 gpio_request(GPIO_LED_SD2_B, "GPIO_LED_SD2_B");
111 gpio_request(GPIO_LED_SD2_G, "GPIO_LED_SD2_G");
112 gpio_request(GPIO_LED_SD1_R, "GPIO_LED_SD1_R");
113 gpio_request(GPIO_LED_SD1_B, "GPIO_LED_SD1_B");
114 gpio_request(GPIO_LED_SD1_G, "GPIO_LED_SD1_G");
115 gpio_request(GPIO_LED_PWR_R, "GPIO_LED_PWR_R");
116 gpio_request(GPIO_LED_PWR_B, "GPIO_LED_PWR_B");
117 gpio_request(GPIO_LED_PWR_G, "GPIO_LED_PWR_G");
118
Patrick Bruennba81b042016-11-04 11:57:02 +0100119 gpio_direction_output(GPIO_LED_SD2_R, 0);
120 gpio_direction_output(GPIO_LED_SD2_B, 0);
121 gpio_direction_output(GPIO_LED_SD2_G, 0);
122 gpio_direction_output(GPIO_LED_SD1_R, 0);
123 gpio_direction_output(GPIO_LED_SD1_B, 0);
124 gpio_direction_output(GPIO_LED_SD1_G, 0);
125 gpio_direction_output(GPIO_LED_PWR_R, 0);
126 gpio_direction_output(GPIO_LED_PWR_B, 0);
127 gpio_direction_output(GPIO_LED_PWR_G, 0);
128}
129
130#ifdef CONFIG_USB_EHCI_MX5
131int board_ehci_hcd_init(int port)
132{
133 /* request VBUS power enable pin, GPIO7_8 */
134 gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
135 return 0;
136}
137#endif
138
Patrick Bruennba81b042016-11-04 11:57:02 +0100139
140static int power_init(void)
141{
142 /* nothing to do on CX9020 */
143 return 0;
144}
145
146static void clock_1GHz(void)
147{
148 int ret;
149 u32 ref_clk = MXC_HCLK;
150 /*
151 * After increasing voltage to 1.25V, we can switch
152 * CPU clock to 1GHz and DDR to 400MHz safely
153 */
154 ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
155 if (ret)
156 printf("CPU: Switch CPU clock to 1GHZ failed\n");
157
158 ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
159 ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
160 if (ret)
161 printf("CPU: Switch DDR clock to 400MHz failed\n");
162}
163
164int board_early_init_f(void)
165{
Patrick Bruennba81b042016-11-04 11:57:02 +0100166
167 return 0;
168}
169
Patrick Bruennba81b042016-11-04 11:57:02 +0100170int board_init(void)
171{
172 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
173
174 mxc_set_sata_internal_clock();
175
Steffen Dirkwinkel098e9ef2019-04-17 13:57:14 +0200176 setup_gpio_leds();
177 setup_gpio_sups();
178 setup_gpio_eim();
179 setup_iomux_lcd();
180
Patrick Bruennba81b042016-11-04 11:57:02 +0100181 return 0;
182}
183
184int checkboard(void)
185{
186 puts("Board: Beckhoff CX9020\n");
187
188 return 0;
189}
190
191static int ccat_config_fn(int assert_config, int flush, int cookie)
192{
193 /* prepare FPGA for programming */
194 weim_cs0_settings(CCAT_MODE_CONFIG);
195 gpio_set_value(GPIO_C3_CONFIG, 0);
196 udelay(1);
197 gpio_set_value(GPIO_C3_CONFIG, 1);
198 udelay(230);
199
200 return FPGA_SUCCESS;
201}
202
203static int ccat_status_fn(int cookie)
204{
205 return FPGA_FAIL;
206}
207
208static int ccat_write_fn(const void *buf, size_t buf_len, int flush, int cookie)
209{
210 const uint8_t *const buffer = buf;
211
212 /* program CCAT */
213 int i;
214 for (i = 0; i < buf_len; ++i)
215 writeb(buffer[i], CCAT_BASE_ADDR);
216
217 writeb(0xff, CCAT_BASE_ADDR);
218 writeb(0xff, CCAT_BASE_ADDR);
219
220 return FPGA_SUCCESS;
221}
222
223static int ccat_done_fn(int cookie)
224{
225 /* programming complete? */
226 return gpio_get_value(GPIO_C3_DONE);
227}
228
229static int ccat_post_fn(int cookie)
230{
231 /* switch to FPGA run mode */
232 weim_cs0_settings(CCAT_MODE_RUN);
233 invalidate_dcache_range((ulong) CCAT_BASE_ADDR, (ulong) CCAT_END_ADDR);
234
235 if (memcmp(CCAT_SIGN_ADDR, CCAT_SIGNATURE, sizeof(CCAT_SIGNATURE))) {
236 printf("Verifing CCAT firmware failed, signature not found\n");
237 return FPGA_FAIL;
238 }
239
240 /* signal "CX booting OS" */
241 gpio_set_value(GPIO_LED_PWR_R, 1);
242 gpio_set_value(GPIO_LED_PWR_G, 1);
243 gpio_set_value(GPIO_LED_PWR_B, 0);
244 return FPGA_SUCCESS;
245}
246
247static Altera_CYC2_Passive_Serial_fns ccat_fns = {
248 .config = ccat_config_fn,
249 .status = ccat_status_fn,
250 .done = ccat_done_fn,
251 .write = ccat_write_fn,
252 .abort = ccat_post_fn,
253 .post = ccat_post_fn,
254};
255
256static Altera_desc ccat_fpga = {
257 .family = Altera_CYC2,
258 .iface = passive_serial,
259 .size = CCAT_SIZE,
260 .iface_fns = &ccat_fns,
261 .base = CCAT_BASE_ADDR,
262};
263
264int board_late_init(void)
265{
266 if (!power_init())
267 clock_1GHz();
268
269 fpga_init();
270 fpga_add(fpga_altera, &ccat_fpga);
271
272 return 0;
273}