1 /*
2  * Copyright 2015 Freescale Semiconductor
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 #include <common.h>
7 #include <malloc.h>
8 #include <errno.h>
9 #include <netdev.h>
10 #include <fsl_ifc.h>
11 #include <fsl_ddr.h>
12 #include <asm/io.h>
13 #include <hwconfig.h>
14 #include <fdt_support.h>
15 #include <libfdt.h>
16 #include <fsl_debug_server.h>
17 #include <fsl-mc/fsl_mc.h>
18 #include <environment.h>
19 #include <i2c.h>
20 #include <asm/arch/soc.h>
21 #include <fsl_sec.h>
22 
23 #include "../common/qixis.h"
24 #include "ls2080ardb_qixis.h"
25 #include "../common/vid.h"
26 
27 #define PIN_MUX_SEL_SDHC	0x00
28 #define PIN_MUX_SEL_DSPI	0x0a
29 
30 #define SET_SDHC_MUX_SEL(reg, value)	((reg & 0xf0) | value)
31 DECLARE_GLOBAL_DATA_PTR;
32 
33 enum {
34 	MUX_TYPE_SDHC,
35 	MUX_TYPE_DSPI,
36 };
37 
38 unsigned long long get_qixis_addr(void)
39 {
40 	unsigned long long addr;
41 
42 	if (gd->flags & GD_FLG_RELOC)
43 		addr = QIXIS_BASE_PHYS;
44 	else
45 		addr = QIXIS_BASE_PHYS_EARLY;
46 
47 	/*
48 	 * IFC address under 256MB is mapped to 0x30000000, any address above
49 	 * is mapped to 0x5_10000000 up to 4GB.
50 	 */
51 	addr = addr  > 0x10000000 ? addr + 0x500000000ULL : addr + 0x30000000;
52 
53 	return addr;
54 }
55 
56 int checkboard(void)
57 {
58 	u8 sw;
59 	char buf[15];
60 
61 	cpu_name(buf);
62 	printf("Board: %s-RDB, ", buf);
63 
64 	sw = QIXIS_READ(arch);
65 	printf("Board Arch: V%d, ", sw >> 4);
66 	printf("Board version: %c, boot from ", (sw & 0xf) + 'A');
67 
68 	sw = QIXIS_READ(brdcfg[0]);
69 	sw = (sw & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT;
70 
71 	if (sw < 0x8)
72 		printf("vBank: %d\n", sw);
73 	else if (sw == 0x9)
74 		puts("NAND\n");
75 	else
76 		printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
77 
78 	printf("FPGA: v%d.%d\n", QIXIS_READ(scver), QIXIS_READ(tagdata));
79 
80 	puts("SERDES1 Reference : ");
81 	printf("Clock1 = 156.25MHz ");
82 	printf("Clock2 = 156.25MHz");
83 
84 	puts("\nSERDES2 Reference : ");
85 	printf("Clock1 = 100MHz ");
86 	printf("Clock2 = 100MHz\n");
87 
88 	return 0;
89 }
90 
91 unsigned long get_board_sys_clk(void)
92 {
93 	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
94 
95 	switch (sysclk_conf & 0x0F) {
96 	case QIXIS_SYSCLK_83:
97 		return 83333333;
98 	case QIXIS_SYSCLK_100:
99 		return 100000000;
100 	case QIXIS_SYSCLK_125:
101 		return 125000000;
102 	case QIXIS_SYSCLK_133:
103 		return 133333333;
104 	case QIXIS_SYSCLK_150:
105 		return 150000000;
106 	case QIXIS_SYSCLK_160:
107 		return 160000000;
108 	case QIXIS_SYSCLK_166:
109 		return 166666666;
110 	}
111 	return 66666666;
112 }
113 
114 int select_i2c_ch_pca9547(u8 ch)
115 {
116 	int ret;
117 
118 	ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
119 	if (ret) {
120 		puts("PCA: failed to select proper channel\n");
121 		return ret;
122 	}
123 
124 	return 0;
125 }
126 
127 int i2c_multiplexer_select_vid_channel(u8 channel)
128 {
129 	return select_i2c_ch_pca9547(channel);
130 }
131 
132 int config_board_mux(int ctrl_type)
133 {
134 	u8 reg5;
135 
136 	reg5 = QIXIS_READ(brdcfg[5]);
137 
138 	switch (ctrl_type) {
139 	case MUX_TYPE_SDHC:
140 		reg5 = SET_SDHC_MUX_SEL(reg5, PIN_MUX_SEL_SDHC);
141 		break;
142 	case MUX_TYPE_DSPI:
143 		reg5 = SET_SDHC_MUX_SEL(reg5, PIN_MUX_SEL_DSPI);
144 		break;
145 	default:
146 		printf("Wrong mux interface type\n");
147 		return -1;
148 	}
149 
150 	QIXIS_WRITE(brdcfg[5], reg5);
151 
152 	return 0;
153 }
154 
155 int board_init(void)
156 {
157 	char *env_hwconfig;
158 	u32 __iomem *dcfg_ccsr = (u32 __iomem *)DCFG_BASE;
159 #ifdef CONFIG_FSL_MC_ENET
160 	u32 __iomem *irq_ccsr = (u32 __iomem *)ISC_BASE;
161 #endif
162 	u32 val;
163 
164 	init_final_memctl_regs();
165 
166 	val = in_le32(dcfg_ccsr + DCFG_RCWSR13 / 4);
167 
168 	env_hwconfig = getenv("hwconfig");
169 
170 	if (hwconfig_f("dspi", env_hwconfig) &&
171 	    DCFG_RCWSR13_DSPI == (val & (u32)(0xf << 8)))
172 		config_board_mux(MUX_TYPE_DSPI);
173 	else
174 		config_board_mux(MUX_TYPE_SDHC);
175 
176 #ifdef CONFIG_ENV_IS_NOWHERE
177 	gd->env_addr = (ulong)&default_environment[0];
178 #endif
179 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
180 
181 	QIXIS_WRITE(rst_ctl, QIXIS_RST_CTL_RESET_EN);
182 
183 #ifdef CONFIG_FSL_MC_ENET
184 	/* invert AQR405 IRQ pins polarity */
185 	out_le32(irq_ccsr + IRQCR_OFFSET / 4, AQR405_IRQ_MASK);
186 #endif
187 
188 	return 0;
189 }
190 
191 int board_early_init_f(void)
192 {
193 	fsl_lsch3_early_init_f();
194 	return 0;
195 }
196 
197 int misc_init_r(void)
198 {
199 	if (hwconfig("sdhc"))
200 		config_board_mux(MUX_TYPE_SDHC);
201 
202 	if (adjust_vdd(0))
203 		printf("Warning: Adjusting core voltage failed.\n");
204 
205 	return 0;
206 }
207 
208 void detail_board_ddr_info(void)
209 {
210 	puts("\nDDR    ");
211 	print_size(gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size, "");
212 	print_ddr_info(0);
213 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
214 	if (soc_has_dp_ddr() && gd->bd->bi_dram[2].size) {
215 		puts("\nDP-DDR ");
216 		print_size(gd->bd->bi_dram[2].size, "");
217 		print_ddr_info(CONFIG_DP_DDR_CTRL);
218 	}
219 #endif
220 }
221 
222 int dram_init(void)
223 {
224 	gd->ram_size = initdram(0);
225 
226 	return 0;
227 }
228 
229 #if defined(CONFIG_ARCH_MISC_INIT)
230 int arch_misc_init(void)
231 {
232 #ifdef CONFIG_FSL_DEBUG_SERVER
233 	debug_server_init();
234 #endif
235 #ifdef CONFIG_FSL_CAAM
236 	sec_init();
237 #endif
238 	return 0;
239 }
240 #endif
241 
242 #ifdef CONFIG_FSL_MC_ENET
243 void fdt_fixup_board_enet(void *fdt)
244 {
245 	int offset;
246 
247 	offset = fdt_path_offset(fdt, "/soc/fsl-mc");
248 
249 	if (offset < 0)
250 		offset = fdt_path_offset(fdt, "/fsl-mc");
251 
252 	if (offset < 0) {
253 		printf("%s: ERROR: fsl-mc node not found in device tree (error %d)\n",
254 		       __func__, offset);
255 		return;
256 	}
257 
258 	if (get_mc_boot_status() == 0)
259 		fdt_status_okay(fdt, offset);
260 	else
261 		fdt_status_fail(fdt, offset);
262 }
263 #endif
264 
265 #ifdef CONFIG_OF_BOARD_SETUP
266 int ft_board_setup(void *blob, bd_t *bd)
267 {
268 #ifdef CONFIG_FSL_MC_ENET
269 	int err;
270 #endif
271 	u64 base[CONFIG_NR_DRAM_BANKS];
272 	u64 size[CONFIG_NR_DRAM_BANKS];
273 
274 	ft_cpu_setup(blob, bd);
275 
276 	/* fixup DT for the two GPP DDR banks */
277 	base[0] = gd->bd->bi_dram[0].start;
278 	size[0] = gd->bd->bi_dram[0].size;
279 	base[1] = gd->bd->bi_dram[1].start;
280 	size[1] = gd->bd->bi_dram[1].size;
281 
282 	fdt_fixup_memory_banks(blob, base, size, 2);
283 
284 	fdt_fixup_dr_usb(blob, bd);
285 
286 #ifdef CONFIG_FSL_MC_ENET
287 	fdt_fixup_board_enet(blob);
288 	err = fsl_mc_ldpaa_exit(bd);
289 	if (err)
290 		return err;
291 #endif
292 
293 	return 0;
294 }
295 #endif
296 
297 void qixis_dump_switch(void)
298 {
299 	int i, nr_of_cfgsw;
300 
301 	QIXIS_WRITE(cms[0], 0x00);
302 	nr_of_cfgsw = QIXIS_READ(cms[1]);
303 
304 	puts("DIP switch settings dump:\n");
305 	for (i = 1; i <= nr_of_cfgsw; i++) {
306 		QIXIS_WRITE(cms[0], i);
307 		printf("SW%d = (0x%02x)\n", i, QIXIS_READ(cms[1]));
308 	}
309 }
310 
311 /*
312  * Board rev C and earlier has duplicated I2C addresses for 2nd controller.
313  * Both slots has 0x54, resulting 2nd slot unusable.
314  */
315 void update_spd_address(unsigned int ctrl_num,
316 			unsigned int slot,
317 			unsigned int *addr)
318 {
319 	u8 sw;
320 
321 	sw = QIXIS_READ(arch);
322 	if ((sw & 0xf) < 0x3) {
323 		if (ctrl_num == 1 && slot == 0)
324 			*addr = SPD_EEPROM_ADDRESS4;
325 		else if (ctrl_num == 1 && slot == 1)
326 			*addr = SPD_EEPROM_ADDRESS3;
327 	}
328 }
329