1 /*
2  * Copyright 2015 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <i2c.h>
9 #include <fdt_support.h>
10 #include <fsl_ddr_sdram.h>
11 #include <asm/io.h>
12 #include <asm/arch/clock.h>
13 #include <asm/arch/fsl_serdes.h>
14 #include <asm/arch/fdt.h>
15 #include <asm/arch/mmu.h>
16 #include <asm/arch/soc.h>
17 #include <ahci.h>
18 #include <hwconfig.h>
19 #include <mmc.h>
20 #include <scsi.h>
21 #include <fm_eth.h>
22 #include <fsl_esdhc.h>
23 #include <fsl_ifc.h>
24 #include <spl.h>
25 
26 #include "../common/qixis.h"
27 #include "ls1043aqds_qixis.h"
28 
29 DECLARE_GLOBAL_DATA_PTR;
30 
31 enum {
32 	MUX_TYPE_GPIO,
33 };
34 
35 /* LS1043AQDS serdes mux */
36 #define CFG_SD_MUX1_SLOT2	0x0 /* SLOT2 TX/RX0 */
37 #define CFG_SD_MUX1_SLOT1	0x1 /* SLOT1 TX/RX1 */
38 #define CFG_SD_MUX2_SLOT3	0x0 /* SLOT3 TX/RX0 */
39 #define CFG_SD_MUX2_SLOT1	0x1 /* SLOT1 TX/RX2 */
40 #define CFG_SD_MUX3_SLOT4	0x0 /* SLOT4 TX/RX0 */
41 #define CFG_SD_MUX3_MUX4	0x1 /* MUX4 */
42 #define CFG_SD_MUX4_SLOT3	0x0 /* SLOT3 TX/RX1 */
43 #define CFG_SD_MUX4_SLOT1	0x1 /* SLOT1 TX/RX3 */
44 #define CFG_UART_MUX_MASK	0x6
45 #define CFG_UART_MUX_SHIFT	1
46 #define CFG_LPUART_EN		0x1
47 
48 int checkboard(void)
49 {
50 	char buf[64];
51 #ifndef CONFIG_SD_BOOT
52 	u8 sw;
53 #endif
54 
55 	puts("Board: LS1043AQDS, boot from ");
56 
57 #ifdef CONFIG_SD_BOOT
58 	puts("SD\n");
59 #else
60 	sw = QIXIS_READ(brdcfg[0]);
61 	sw = (sw & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT;
62 
63 	if (sw < 0x8)
64 		printf("vBank: %d\n", sw);
65 	else if (sw == 0x8)
66 		puts("PromJet\n");
67 	else if (sw == 0x9)
68 		puts("NAND\n");
69 	else if (sw == 0xF)
70 		printf("QSPI\n");
71 	else
72 		printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
73 #endif
74 
75 	printf("Sys ID: 0x%02x, Sys Ver: 0x%02x\n",
76 	       QIXIS_READ(id), QIXIS_READ(arch));
77 
78 	printf("FPGA:  v%d (%s), build %d\n",
79 	       (int)QIXIS_READ(scver), qixis_read_tag(buf),
80 	       (int)qixis_read_minor());
81 
82 	return 0;
83 }
84 
85 bool if_board_diff_clk(void)
86 {
87 	u8 diff_conf = QIXIS_READ(brdcfg[11]);
88 
89 	return diff_conf & 0x40;
90 }
91 
92 unsigned long get_board_sys_clk(void)
93 {
94 	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
95 
96 	switch (sysclk_conf & 0x0f) {
97 	case QIXIS_SYSCLK_64:
98 		return 64000000;
99 	case QIXIS_SYSCLK_83:
100 		return 83333333;
101 	case QIXIS_SYSCLK_100:
102 		return 100000000;
103 	case QIXIS_SYSCLK_125:
104 		return 125000000;
105 	case QIXIS_SYSCLK_133:
106 		return 133333333;
107 	case QIXIS_SYSCLK_150:
108 		return 150000000;
109 	case QIXIS_SYSCLK_160:
110 		return 160000000;
111 	case QIXIS_SYSCLK_166:
112 		return 166666666;
113 	}
114 
115 	return 66666666;
116 }
117 
118 unsigned long get_board_ddr_clk(void)
119 {
120 	u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
121 
122 	if (if_board_diff_clk())
123 		return get_board_sys_clk();
124 	switch ((ddrclk_conf & 0x30) >> 4) {
125 	case QIXIS_DDRCLK_100:
126 		return 100000000;
127 	case QIXIS_DDRCLK_125:
128 		return 125000000;
129 	case QIXIS_DDRCLK_133:
130 		return 133333333;
131 	}
132 
133 	return 66666666;
134 }
135 
136 int select_i2c_ch_pca9547(u8 ch)
137 {
138 	int ret;
139 
140 	ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
141 	if (ret) {
142 		puts("PCA: failed to select proper channel\n");
143 		return ret;
144 	}
145 
146 	return 0;
147 }
148 
149 int dram_init(void)
150 {
151 	/*
152 	 * When resuming from deep sleep, the I2C channel may not be
153 	 * in the default channel. So, switch to the default channel
154 	 * before accessing DDR SPD.
155 	 */
156 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
157 	fsl_initdram();
158 #if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
159 	/* This will break-before-make MMU for DDR */
160 	update_early_mmu_table();
161 #endif
162 
163 	return 0;
164 }
165 
166 int i2c_multiplexer_select_vid_channel(u8 channel)
167 {
168 	return select_i2c_ch_pca9547(channel);
169 }
170 
171 void board_retimer_init(void)
172 {
173 	u8 reg;
174 
175 	/* Retimer is connected to I2C1_CH7_CH5 */
176 	select_i2c_ch_pca9547(I2C_MUX_CH7);
177 	reg = I2C_MUX_CH5;
178 	i2c_write(I2C_MUX_PCA_ADDR_SEC, 0, 1, &reg, 1);
179 
180 	/* Access to Control/Shared register */
181 	reg = 0x0;
182 	i2c_write(I2C_RETIMER_ADDR, 0xff, 1, &reg, 1);
183 
184 	/* Read device revision and ID */
185 	i2c_read(I2C_RETIMER_ADDR, 1, 1, &reg, 1);
186 	debug("Retimer version id = 0x%x\n", reg);
187 
188 	/* Enable Broadcast. All writes target all channel register sets */
189 	reg = 0x0c;
190 	i2c_write(I2C_RETIMER_ADDR, 0xff, 1, &reg, 1);
191 
192 	/* Reset Channel Registers */
193 	i2c_read(I2C_RETIMER_ADDR, 0, 1, &reg, 1);
194 	reg |= 0x4;
195 	i2c_write(I2C_RETIMER_ADDR, 0, 1, &reg, 1);
196 
197 	/* Enable override divider select and Enable Override Output Mux */
198 	i2c_read(I2C_RETIMER_ADDR, 9, 1, &reg, 1);
199 	reg |= 0x24;
200 	i2c_write(I2C_RETIMER_ADDR, 9, 1, &reg, 1);
201 
202 	/* Select VCO Divider to full rate (000) */
203 	i2c_read(I2C_RETIMER_ADDR, 0x18, 1, &reg, 1);
204 	reg &= 0x8f;
205 	i2c_write(I2C_RETIMER_ADDR, 0x18, 1, &reg, 1);
206 
207 	/* Selects active PFD MUX Input as Re-timed Data (001) */
208 	i2c_read(I2C_RETIMER_ADDR, 0x1e, 1, &reg, 1);
209 	reg &= 0x3f;
210 	reg |= 0x20;
211 	i2c_write(I2C_RETIMER_ADDR, 0x1e, 1, &reg, 1);
212 
213 	/* Set data rate as 10.3125 Gbps */
214 	reg = 0x0;
215 	i2c_write(I2C_RETIMER_ADDR, 0x60, 1, &reg, 1);
216 	reg = 0xb2;
217 	i2c_write(I2C_RETIMER_ADDR, 0x61, 1, &reg, 1);
218 	reg = 0x90;
219 	i2c_write(I2C_RETIMER_ADDR, 0x62, 1, &reg, 1);
220 	reg = 0xb3;
221 	i2c_write(I2C_RETIMER_ADDR, 0x63, 1, &reg, 1);
222 	reg = 0xcd;
223 	i2c_write(I2C_RETIMER_ADDR, 0x64, 1, &reg, 1);
224 
225 	/* Return the default channel */
226 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
227 }
228 
229 int board_early_init_f(void)
230 {
231 #ifdef CONFIG_HAS_FSL_XHCI_USB
232 	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
233 	u32 usb_pwrfault;
234 #endif
235 #ifdef CONFIG_LPUART
236 	u8 uart;
237 #endif
238 
239 #ifdef CONFIG_SYS_I2C_EARLY_INIT
240 	i2c_early_init_f();
241 #endif
242 	fsl_lsch2_early_init_f();
243 
244 #ifdef CONFIG_HAS_FSL_XHCI_USB
245 	out_be32(&scfg->rcwpmuxcr0, 0x3333);
246 	out_be32(&scfg->usbdrvvbus_selcr, SCFG_USBDRVVBUS_SELCR_USB1);
247 	usb_pwrfault =
248 		(SCFG_USBPWRFAULT_DEDICATED << SCFG_USBPWRFAULT_USB3_SHIFT) |
249 		(SCFG_USBPWRFAULT_DEDICATED << SCFG_USBPWRFAULT_USB2_SHIFT) |
250 		(SCFG_USBPWRFAULT_SHARED << SCFG_USBPWRFAULT_USB1_SHIFT);
251 	out_be32(&scfg->usbpwrfault_selcr, usb_pwrfault);
252 #endif
253 
254 #ifdef CONFIG_LPUART
255 	/* We use lpuart0 as system console */
256 	uart = QIXIS_READ(brdcfg[14]);
257 	uart &= ~CFG_UART_MUX_MASK;
258 	uart |= CFG_LPUART_EN << CFG_UART_MUX_SHIFT;
259 	QIXIS_WRITE(brdcfg[14], uart);
260 #endif
261 
262 	return 0;
263 }
264 
265 #ifdef CONFIG_FSL_DEEP_SLEEP
266 /* determine if it is a warm boot */
267 bool is_warm_boot(void)
268 {
269 #define DCFG_CCSR_CRSTSR_WDRFR	(1 << 3)
270 	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
271 
272 	if (in_be32(&gur->crstsr) & DCFG_CCSR_CRSTSR_WDRFR)
273 		return 1;
274 
275 	return 0;
276 }
277 #endif
278 
279 int config_board_mux(int ctrl_type)
280 {
281 	u8 reg14;
282 
283 	reg14 = QIXIS_READ(brdcfg[14]);
284 
285 	switch (ctrl_type) {
286 	case MUX_TYPE_GPIO:
287 		reg14 = (reg14 & (~0x30)) | 0x20;
288 		break;
289 	default:
290 		puts("Unsupported mux interface type\n");
291 		return -1;
292 	}
293 
294 	QIXIS_WRITE(brdcfg[14], reg14);
295 
296 	return 0;
297 }
298 
299 int config_serdes_mux(void)
300 {
301 	return 0;
302 }
303 
304 
305 #ifdef CONFIG_MISC_INIT_R
306 int misc_init_r(void)
307 {
308 	if (hwconfig("gpio"))
309 		config_board_mux(MUX_TYPE_GPIO);
310 
311 	return 0;
312 }
313 #endif
314 
315 int board_init(void)
316 {
317 #ifdef CONFIG_SYS_FSL_ERRATUM_A010315
318 	erratum_a010315();
319 #endif
320 
321 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
322 	board_retimer_init();
323 
324 #ifdef CONFIG_SYS_FSL_SERDES
325 	config_serdes_mux();
326 #endif
327 
328 	return 0;
329 }
330 
331 #ifdef CONFIG_OF_BOARD_SETUP
332 int ft_board_setup(void *blob, bd_t *bd)
333 {
334 	u64 base[CONFIG_NR_DRAM_BANKS];
335 	u64 size[CONFIG_NR_DRAM_BANKS];
336 	u8 reg;
337 
338 	/* fixup DT for the two DDR banks */
339 	base[0] = gd->bd->bi_dram[0].start;
340 	size[0] = gd->bd->bi_dram[0].size;
341 	base[1] = gd->bd->bi_dram[1].start;
342 	size[1] = gd->bd->bi_dram[1].size;
343 
344 	fdt_fixup_memory_banks(blob, base, size, 2);
345 	ft_cpu_setup(blob, bd);
346 
347 #ifdef CONFIG_SYS_DPAA_FMAN
348 	fdt_fixup_fman_ethernet(blob);
349 	fdt_fixup_board_enet(blob);
350 #endif
351 
352 	reg = QIXIS_READ(brdcfg[0]);
353 	reg = (reg & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT;
354 
355 	/* Disable IFC if QSPI is enabled */
356 	if (reg == 0xF)
357 		do_fixup_by_compat(blob, "fsl,ifc",
358 				   "status", "disabled", 8 + 1, 1);
359 
360 	return 0;
361 }
362 #endif
363 
364 u8 flash_read8(void *addr)
365 {
366 	return __raw_readb(addr + 1);
367 }
368 
369 void flash_write16(u16 val, void *addr)
370 {
371 	u16 shftval = (((val >> 8) & 0xff) | ((val << 8) & 0xff00));
372 
373 	__raw_writew(shftval, addr);
374 }
375 
376 u16 flash_read16(void *addr)
377 {
378 	u16 val = __raw_readw(addr);
379 
380 	return (((val) >> 8) & 0x00ff) | (((val) << 8) & 0xff00);
381 }
382