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 	u32 __iomem *irq_ccsr = (u32 __iomem *)ISC_BASE;
160 	u32 val;
161 
162 	init_final_memctl_regs();
163 
164 	val = in_le32(dcfg_ccsr + DCFG_RCWSR13 / 4);
165 
166 	env_hwconfig = getenv("hwconfig");
167 
168 	if (hwconfig_f("dspi", env_hwconfig) &&
169 	    DCFG_RCWSR13_DSPI == (val & (u32)(0xf << 8)))
170 		config_board_mux(MUX_TYPE_DSPI);
171 	else
172 		config_board_mux(MUX_TYPE_SDHC);
173 
174 #ifdef CONFIG_ENV_IS_NOWHERE
175 	gd->env_addr = (ulong)&default_environment[0];
176 #endif
177 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
178 
179 	QIXIS_WRITE(rst_ctl, QIXIS_RST_CTL_RESET_EN);
180 
181 	/* invert AQR405 IRQ pins polarity */
182 	out_le32(irq_ccsr + IRQCR_OFFSET / 4, AQR405_IRQ_MASK);
183 
184 	return 0;
185 }
186 
187 int board_early_init_f(void)
188 {
189 	fsl_lsch3_early_init_f();
190 	return 0;
191 }
192 
193 int misc_init_r(void)
194 {
195 	if (hwconfig("sdhc"))
196 		config_board_mux(MUX_TYPE_SDHC);
197 
198 	if (adjust_vdd(0))
199 		printf("Warning: Adjusting core voltage failed.\n");
200 
201 	return 0;
202 }
203 
204 void detail_board_ddr_info(void)
205 {
206 	puts("\nDDR    ");
207 	print_size(gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size, "");
208 	print_ddr_info(0);
209 #ifdef CONFIG_SYS_FSL_HAS_DP_DDR
210 	if (soc_has_dp_ddr() && gd->bd->bi_dram[2].size) {
211 		puts("\nDP-DDR ");
212 		print_size(gd->bd->bi_dram[2].size, "");
213 		print_ddr_info(CONFIG_DP_DDR_CTRL);
214 	}
215 #endif
216 }
217 
218 int dram_init(void)
219 {
220 	gd->ram_size = initdram(0);
221 
222 	return 0;
223 }
224 
225 #if defined(CONFIG_ARCH_MISC_INIT)
226 int arch_misc_init(void)
227 {
228 #ifdef CONFIG_FSL_DEBUG_SERVER
229 	debug_server_init();
230 #endif
231 #ifdef CONFIG_FSL_CAAM
232 	sec_init();
233 #endif
234 	return 0;
235 }
236 #endif
237 
238 #ifdef CONFIG_FSL_MC_ENET
239 void fdt_fixup_board_enet(void *fdt)
240 {
241 	int offset;
242 
243 	offset = fdt_path_offset(fdt, "/soc/fsl-mc");
244 
245 	if (offset < 0)
246 		offset = fdt_path_offset(fdt, "/fsl-mc");
247 
248 	if (offset < 0) {
249 		printf("%s: ERROR: fsl-mc node not found in device tree (error %d)\n",
250 		       __func__, offset);
251 		return;
252 	}
253 
254 	if (get_mc_boot_status() == 0)
255 		fdt_status_okay(fdt, offset);
256 	else
257 		fdt_status_fail(fdt, offset);
258 }
259 #endif
260 
261 #ifdef CONFIG_OF_BOARD_SETUP
262 int ft_board_setup(void *blob, bd_t *bd)
263 {
264 	int err;
265 	u64 base[CONFIG_NR_DRAM_BANKS];
266 	u64 size[CONFIG_NR_DRAM_BANKS];
267 
268 	ft_cpu_setup(blob, bd);
269 
270 	/* fixup DT for the two GPP DDR banks */
271 	base[0] = gd->bd->bi_dram[0].start;
272 	size[0] = gd->bd->bi_dram[0].size;
273 	base[1] = gd->bd->bi_dram[1].start;
274 	size[1] = gd->bd->bi_dram[1].size;
275 
276 	fdt_fixup_memory_banks(blob, base, size, 2);
277 
278 #ifdef CONFIG_FSL_MC_ENET
279 	fdt_fixup_board_enet(blob);
280 	err = fsl_mc_ldpaa_exit(bd);
281 	if (err)
282 		return err;
283 #endif
284 
285 	return 0;
286 }
287 #endif
288 
289 void qixis_dump_switch(void)
290 {
291 	int i, nr_of_cfgsw;
292 
293 	QIXIS_WRITE(cms[0], 0x00);
294 	nr_of_cfgsw = QIXIS_READ(cms[1]);
295 
296 	puts("DIP switch settings dump:\n");
297 	for (i = 1; i <= nr_of_cfgsw; i++) {
298 		QIXIS_WRITE(cms[0], i);
299 		printf("SW%d = (0x%02x)\n", i, QIXIS_READ(cms[1]));
300 	}
301 }
302 
303 /*
304  * Board rev C and earlier has duplicated I2C addresses for 2nd controller.
305  * Both slots has 0x54, resulting 2nd slot unusable.
306  */
307 void update_spd_address(unsigned int ctrl_num,
308 			unsigned int slot,
309 			unsigned int *addr)
310 {
311 	u8 sw;
312 
313 	sw = QIXIS_READ(arch);
314 	if ((sw & 0xf) < 0x3) {
315 		if (ctrl_num == 1 && slot == 0)
316 			*addr = SPD_EEPROM_ADDRESS4;
317 		else if (ctrl_num == 1 && slot == 1)
318 			*addr = SPD_EEPROM_ADDRESS3;
319 	}
320 }
321