xref: /openbmc/u-boot/board/gdsys/a38x/controlcenterdc.c (revision 2b4ffbf6b4944a0b3125fd2c9c0ba3568264367a)
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.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 /*
38  * Define the DDR layout / topology here in the board file. This will
39  * be used by the DDR3 init code in the SPL U-Boot version to configure
40  * the DDR3 controller.
41  */
42 static struct mv_ddr_topology_map ddr_topology_map = {
43 	DEBUG_LEVEL_ERROR,
44 	0x1, /* active interfaces */
45 	/* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
46 	{ { { {0x1, 0, 0, 0},
47 	      {0x1, 0, 0, 0},
48 	      {0x1, 0, 0, 0},
49 	      {0x1, 0, 0, 0},
50 	      {0x1, 0, 0, 0} },
51 	    SPEED_BIN_DDR_1600K,	/* speed_bin */
52 	    MV_DDR_DEV_WIDTH_16BIT,	/* memory_width */
53 	    MV_DDR_DIE_CAP_4GBIT,	/* mem_size */
54 	    DDR_FREQ_533,		/* frequency */
55 	    0, 0,			/* cas_wl cas_l */
56 	    MV_DDR_TEMP_LOW} },		/* temperature */
57 	BUS_MASK_32BIT,			/* Busses mask */
58 	MV_DDR_CFG_DEFAULT,		/* ddr configuration data source */
59 	{ {0} },			/* raw spd data */
60 	{0}				/* timing parameters */
61 
62 };
63 
64 static struct serdes_map serdes_topology_map[] = {
65 	{SGMII0, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
66 	{USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
67 	/* SATA tx polarity is inverted */
68 	{SATA1, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 1},
69 	{SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
70 	{DEFAULT_SERDES, SERDES_SPEED_3_GBPS, SERDES_DEFAULT_MODE, 0, 0},
71 	{PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0}
72 };
73 
74 int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
75 {
76 	*serdes_map_array = serdes_topology_map;
77 	*count = ARRAY_SIZE(serdes_topology_map);
78 	return 0;
79 }
80 
81 void board_pex_config(void)
82 {
83 #ifdef CONFIG_SPL_BUILD
84 	uint k;
85 	struct gpio_desc gpio = {};
86 
87 	if (!request_gpio_by_name(&gpio, "pca9698@22", 31, "fpga-program-gpio")) {
88 		/* prepare FPGA reconfiguration */
89 		dm_gpio_set_dir_flags(&gpio, GPIOD_IS_OUT);
90 		dm_gpio_set_value(&gpio, 0);
91 
92 		/* give lunatic PCIe clock some time to stabilize */
93 		mdelay(500);
94 
95 		/* start FPGA reconfiguration */
96 		dm_gpio_set_dir_flags(&gpio, GPIOD_IS_IN);
97 	}
98 
99 	/* wait for FPGA done */
100 	if (!request_gpio_by_name(&gpio, "pca9698@22", 19, "fpga-done-gpio")) {
101 		for (k = 0; k < 20; ++k) {
102 			if (dm_gpio_get_value(&gpio)) {
103 				printf("FPGA done after %u rounds\n", k);
104 				break;
105 			}
106 			mdelay(100);
107 		}
108 	}
109 
110 	/* disable FPGA reset */
111 	if (!request_gpio_by_name(&gpio, "gpio@18100", 6, "cpu-to-fpga-reset")) {
112 		dm_gpio_set_dir_flags(&gpio, GPIOD_IS_OUT);
113 		dm_gpio_set_value(&gpio, 1);
114 	}
115 
116 	/* wait for FPGA ready */
117 	if (!request_gpio_by_name(&gpio, "pca9698@22", 27, "fpga-ready-gpio")) {
118 		for (k = 0; k < 2; ++k) {
119 			if (!dm_gpio_get_value(&gpio))
120 				break;
121 			mdelay(100);
122 		}
123 	}
124 #endif
125 }
126 
127 struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
128 {
129 	return &ddr_topology_map;
130 }
131 
132 int board_early_init_f(void)
133 {
134 #ifdef CONFIG_SPL_BUILD
135 	/* Configure MPP */
136 	writel(0x00111111, MVEBU_MPP_BASE + 0x00);
137 	writel(0x40040000, MVEBU_MPP_BASE + 0x04);
138 	writel(0x00466444, MVEBU_MPP_BASE + 0x08);
139 	writel(0x00043300, MVEBU_MPP_BASE + 0x0c);
140 	writel(0x44400000, MVEBU_MPP_BASE + 0x10);
141 	writel(0x20000334, MVEBU_MPP_BASE + 0x14);
142 	writel(0x40000000, MVEBU_MPP_BASE + 0x18);
143 	writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
144 
145 	/* Set GPP Out value */
146 	writel(DB_GP_88F68XX_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
147 	writel(DB_GP_88F68XX_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
148 
149 	/* Set GPP Polarity */
150 	writel(DB_GP_88F68XX_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
151 	writel(DB_GP_88F68XX_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
152 
153 	/* Set GPP Out Enable */
154 	writel(DB_GP_88F68XX_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
155 	writel(DB_GP_88F68XX_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
156 #endif
157 
158 	return 0;
159 }
160 
161 int board_init(void)
162 {
163 	/* Address of boot parameters */
164 	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
165 
166 	return 0;
167 }
168 
169 #ifndef CONFIG_SPL_BUILD
170 void init_host_phys(struct mii_dev *bus)
171 {
172 	uint k;
173 
174 	for (k = 0; k < 2; ++k) {
175 		struct phy_device *phydev;
176 
177 		phydev = phy_find_by_mask(bus, 1 << k,
178 					  PHY_INTERFACE_MODE_SGMII);
179 
180 		if (phydev)
181 			phy_config(phydev);
182 	}
183 }
184 
185 int ccdc_eth_init(void)
186 {
187 	uint k;
188 	uint octo_phy_mask = 0;
189 	int ret;
190 	struct mii_dev *bus;
191 
192 	/* Init SoC's phys */
193 	bus = miiphy_get_dev_by_name("ethernet@34000");
194 
195 	if (bus)
196 		init_host_phys(bus);
197 
198 	bus = miiphy_get_dev_by_name("ethernet@70000");
199 
200 	if (bus)
201 		init_host_phys(bus);
202 
203 	/* Init octo phys */
204 	octo_phy_mask = calculate_octo_phy_mask();
205 
206 	printf("IHS PHYS: %08x", octo_phy_mask);
207 
208 	ret = init_octo_phys(octo_phy_mask);
209 
210 	if (ret)
211 		return ret;
212 
213 	printf("\n");
214 
215 	if (!get_fpga()) {
216 		puts("fpga was NULL\n");
217 		return 1;
218 	}
219 
220 	/* reset all FPGA-QSGMII instances */
221 	for (k = 0; k < 80; ++k)
222 		writel(1 << 31, get_fpga()->qsgmii_port_state[k]);
223 
224 	udelay(100);
225 
226 	for (k = 0; k < 80; ++k)
227 		writel(0, get_fpga()->qsgmii_port_state[k]);
228 	return 0;
229 }
230 
231 #endif
232 
233 int board_late_init(void)
234 {
235 #ifndef CONFIG_SPL_BUILD
236 	hydra_initialize();
237 #endif
238 	return 0;
239 }
240 
241 int board_fix_fdt(void *rw_fdt_blob)
242 {
243 	struct udevice *bus = NULL;
244 	uint k;
245 	char name[64];
246 	int err;
247 
248 	err = uclass_get_device_by_name(UCLASS_I2C, "i2c@11000", &bus);
249 
250 	if (err) {
251 		printf("Could not get I2C bus.\n");
252 		return err;
253 	}
254 
255 	for (k = 0x21; k <= 0x26; k++) {
256 		snprintf(name, 64,
257 			 "/soc/internal-regs/i2c@11000/pca9698@%02x", k);
258 
259 		if (!dm_i2c_simple_probe(bus, k))
260 			fdt_disable_by_ofname(rw_fdt_blob, name);
261 	}
262 
263 	return 0;
264 }
265 
266 int last_stage_init(void)
267 {
268 #ifndef CONFIG_SPL_BUILD
269 	ccdc_eth_init();
270 #endif
271 	if (tpm_init() || tpm_startup(TPM_ST_CLEAR) ||
272 	    tpm_continue_self_test()) {
273 		return 1;
274 	}
275 
276 	mdelay(37);
277 
278 	flush_keys();
279 	load_and_run_keyprog();
280 
281 	return 0;
282 }
283