1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2015 Stefan Roese <sr@denx.de>
4  * Copyright (C) 2016 Mario Six <mario.six@gdsys.cc>
5  */
6 
7 #include <common.h>
8 #include <dm.h>
9 #include <miiphy.h>
10 #include <tpm-v1.h>
11 #include <asm/io.h>
12 #include <asm/arch/cpu.h>
13 #include <asm-generic/gpio.h>
14 
15 #include "../drivers/ddr/marvell/a38x/ddr3_init.h"
16 #include "../arch/arm/mach-mvebu/serdes/a38x/high_speed_env_spec.h"
17 
18 #include "keyprogram.h"
19 #include "dt_helpers.h"
20 #include "hydra.h"
21 #include "ihs_phys.h"
22 
23 DECLARE_GLOBAL_DATA_PTR;
24 
25 #define ETH_PHY_CTRL_REG		0
26 #define ETH_PHY_CTRL_POWER_DOWN_BIT	11
27 #define ETH_PHY_CTRL_POWER_DOWN_MASK	(1 << ETH_PHY_CTRL_POWER_DOWN_BIT)
28 
29 #define DB_GP_88F68XX_GPP_OUT_ENA_LOW	0x7fffffff
30 #define DB_GP_88F68XX_GPP_OUT_ENA_MID	0xffffefff
31 
32 #define DB_GP_88F68XX_GPP_OUT_VAL_LOW	0x0
33 #define DB_GP_88F68XX_GPP_OUT_VAL_MID	0x00001000
34 #define DB_GP_88F68XX_GPP_POL_LOW	0x0
35 #define DB_GP_88F68XX_GPP_POL_MID	0x0
36 
37 static int get_tpm(struct udevice **devp)
38 {
39 	int rc;
40 
41 	rc = uclass_first_device_err(UCLASS_TPM, devp);
42 	if (rc) {
43 		printf("Could not find TPM (ret=%d)\n", rc);
44 		return CMD_RET_FAILURE;
45 	}
46 
47 	return 0;
48 }
49 
50 /*
51  * Define the DDR layout / topology here in the board file. This will
52  * be used by the DDR3 init code in the SPL U-Boot version to configure
53  * the DDR3 controller.
54  */
55 static struct mv_ddr_topology_map ddr_topology_map = {
56 	DEBUG_LEVEL_ERROR,
57 	0x1, /* active interfaces */
58 	/* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
59 	{ { { {0x1, 0, 0, 0},
60 	      {0x1, 0, 0, 0},
61 	      {0x1, 0, 0, 0},
62 	      {0x1, 0, 0, 0},
63 	      {0x1, 0, 0, 0} },
64 	    SPEED_BIN_DDR_1600K,	/* speed_bin */
65 	    MV_DDR_DEV_WIDTH_16BIT,	/* memory_width */
66 	    MV_DDR_DIE_CAP_4GBIT,	/* mem_size */
67 	    DDR_FREQ_533,		/* frequency */
68 	    0, 0,			/* cas_wl cas_l */
69 	    MV_DDR_TEMP_LOW,		/* temperature */
70 	    MV_DDR_TIM_DEFAULT} },	/* timing */
71 	BUS_MASK_32BIT,			/* Busses mask */
72 	MV_DDR_CFG_DEFAULT,		/* ddr configuration data source */
73 	{ {0} },			/* raw spd data */
74 	{0}				/* timing parameters */
75 
76 };
77 
78 static struct serdes_map serdes_topology_map[] = {
79 	{SGMII0, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
80 	{USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
81 	/* SATA tx polarity is inverted */
82 	{SATA1, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 1},
83 	{SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
84 	{DEFAULT_SERDES, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
85 	{PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0}
86 };
87 
88 int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
89 {
90 	*serdes_map_array = serdes_topology_map;
91 	*count = ARRAY_SIZE(serdes_topology_map);
92 	return 0;
93 }
94 
95 void board_pex_config(void)
96 {
97 #ifdef CONFIG_SPL_BUILD
98 	uint k;
99 	struct gpio_desc gpio = {};
100 
101 	if (!request_gpio_by_name(&gpio, "pca9698@22", 31, "fpga-program-gpio")) {
102 		/* prepare FPGA reconfiguration */
103 		dm_gpio_set_dir_flags(&gpio, GPIOD_IS_OUT);
104 		dm_gpio_set_value(&gpio, 0);
105 
106 		/* give lunatic PCIe clock some time to stabilize */
107 		mdelay(500);
108 
109 		/* start FPGA reconfiguration */
110 		dm_gpio_set_dir_flags(&gpio, GPIOD_IS_IN);
111 	}
112 
113 	/* wait for FPGA done */
114 	if (!request_gpio_by_name(&gpio, "pca9698@22", 19, "fpga-done-gpio")) {
115 		for (k = 0; k < 20; ++k) {
116 			if (dm_gpio_get_value(&gpio)) {
117 				printf("FPGA done after %u rounds\n", k);
118 				break;
119 			}
120 			mdelay(100);
121 		}
122 	}
123 
124 	/* disable FPGA reset */
125 	if (!request_gpio_by_name(&gpio, "gpio@18100", 6, "cpu-to-fpga-reset")) {
126 		dm_gpio_set_dir_flags(&gpio, GPIOD_IS_OUT);
127 		dm_gpio_set_value(&gpio, 1);
128 	}
129 
130 	/* wait for FPGA ready */
131 	if (!request_gpio_by_name(&gpio, "pca9698@22", 27, "fpga-ready-gpio")) {
132 		for (k = 0; k < 2; ++k) {
133 			if (!dm_gpio_get_value(&gpio))
134 				break;
135 			mdelay(100);
136 		}
137 	}
138 #endif
139 }
140 
141 struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
142 {
143 	return &ddr_topology_map;
144 }
145 
146 int board_early_init_f(void)
147 {
148 #ifdef CONFIG_SPL_BUILD
149 	/* Configure MPP */
150 	writel(0x00111111, MVEBU_MPP_BASE + 0x00);
151 	writel(0x40040000, MVEBU_MPP_BASE + 0x04);
152 	writel(0x00466444, MVEBU_MPP_BASE + 0x08);
153 	writel(0x00043300, MVEBU_MPP_BASE + 0x0c);
154 	writel(0x44400000, MVEBU_MPP_BASE + 0x10);
155 	writel(0x20000334, MVEBU_MPP_BASE + 0x14);
156 	writel(0x40000000, MVEBU_MPP_BASE + 0x18);
157 	writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
158 
159 	/* Set GPP Out value */
160 	writel(DB_GP_88F68XX_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
161 	writel(DB_GP_88F68XX_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
162 
163 	/* Set GPP Polarity */
164 	writel(DB_GP_88F68XX_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
165 	writel(DB_GP_88F68XX_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
166 
167 	/* Set GPP Out Enable */
168 	writel(DB_GP_88F68XX_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
169 	writel(DB_GP_88F68XX_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
170 #endif
171 
172 	return 0;
173 }
174 
175 int board_init(void)
176 {
177 	/* Address of boot parameters */
178 	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
179 
180 	return 0;
181 }
182 
183 #ifndef CONFIG_SPL_BUILD
184 void init_host_phys(struct mii_dev *bus)
185 {
186 	uint k;
187 
188 	for (k = 0; k < 2; ++k) {
189 		struct phy_device *phydev;
190 
191 		phydev = phy_find_by_mask(bus, 1 << k,
192 					  PHY_INTERFACE_MODE_SGMII);
193 
194 		if (phydev)
195 			phy_config(phydev);
196 	}
197 }
198 
199 int ccdc_eth_init(void)
200 {
201 	uint k;
202 	uint octo_phy_mask = 0;
203 	int ret;
204 	struct mii_dev *bus;
205 
206 	/* Init SoC's phys */
207 	bus = miiphy_get_dev_by_name("ethernet@34000");
208 
209 	if (bus)
210 		init_host_phys(bus);
211 
212 	bus = miiphy_get_dev_by_name("ethernet@70000");
213 
214 	if (bus)
215 		init_host_phys(bus);
216 
217 	/* Init octo phys */
218 	octo_phy_mask = calculate_octo_phy_mask();
219 
220 	printf("IHS PHYS: %08x", octo_phy_mask);
221 
222 	ret = init_octo_phys(octo_phy_mask);
223 
224 	if (ret)
225 		return ret;
226 
227 	printf("\n");
228 
229 	if (!get_fpga()) {
230 		puts("fpga was NULL\n");
231 		return 1;
232 	}
233 
234 	/* reset all FPGA-QSGMII instances */
235 	for (k = 0; k < 80; ++k)
236 		writel(1 << 31, get_fpga()->qsgmii_port_state[k]);
237 
238 	udelay(100);
239 
240 	for (k = 0; k < 80; ++k)
241 		writel(0, get_fpga()->qsgmii_port_state[k]);
242 	return 0;
243 }
244 
245 #endif
246 
247 int board_late_init(void)
248 {
249 #ifndef CONFIG_SPL_BUILD
250 	hydra_initialize();
251 #endif
252 	return 0;
253 }
254 
255 int board_fix_fdt(void *rw_fdt_blob)
256 {
257 	struct udevice *bus = NULL;
258 	uint k;
259 	char name[64];
260 	int err;
261 
262 	err = uclass_get_device_by_name(UCLASS_I2C, "i2c@11000", &bus);
263 
264 	if (err) {
265 		printf("Could not get I2C bus.\n");
266 		return err;
267 	}
268 
269 	for (k = 0x21; k <= 0x26; k++) {
270 		snprintf(name, 64,
271 			 "/soc/internal-regs/i2c@11000/pca9698@%02x", k);
272 
273 		if (!dm_i2c_simple_probe(bus, k))
274 			fdt_disable_by_ofname(rw_fdt_blob, name);
275 	}
276 
277 	return 0;
278 }
279 
280 int last_stage_init(void)
281 {
282 	struct udevice *tpm;
283 	int ret;
284 
285 #ifndef CONFIG_SPL_BUILD
286 	ccdc_eth_init();
287 #endif
288 	ret = get_tpm(&tpm);
289 	if (ret || tpm_init(tpm) || tpm_startup(tpm, TPM_ST_CLEAR) ||
290 	    tpm_continue_self_test(tpm)) {
291 		return 1;
292 	}
293 
294 	mdelay(37);
295 
296 	flush_keys(tpm);
297 	load_and_run_keyprog(tpm);
298 
299 	return 0;
300 }
301