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18936ee2 JL |
1 | /* |
2 | * (C) Copyright 2007 | |
3 | * Sascha Hauer, Pengutronix | |
4 | * | |
5 | * (C) Copyright 2009 Freescale Semiconductor, Inc. | |
6 | * | |
1a459660 | 7 | * SPDX-License-Identifier: GPL-2.0+ |
18936ee2 JL |
8 | */ |
9 | ||
5624c6bd | 10 | #include <bootm.h> |
18936ee2 | 11 | #include <common.h> |
5624c6bd | 12 | #include <netdev.h> |
18936ee2 JL |
13 | #include <asm/errno.h> |
14 | #include <asm/io.h> | |
15 | #include <asm/arch/imx-regs.h> | |
16 | #include <asm/arch/clock.h> | |
17 | #include <asm/arch/sys_proto.h> | |
6a376046 | 18 | #include <asm/arch/crm_regs.h> |
70caa8e2 | 19 | #include <imx_thermal.h> |
e1eb75b5 | 20 | #include <ipu_pixfmt.h> |
7a264168 | 21 | #include <thermal.h> |
44b9841d | 22 | #include <sata.h> |
18936ee2 JL |
23 | |
24 | #ifdef CONFIG_FSL_ESDHC | |
25 | #include <fsl_esdhc.h> | |
26 | #endif | |
27 | ||
28420e78 | 28 | #if defined(CONFIG_DISPLAY_CPUINFO) |
11c2e505 EN |
29 | static u32 reset_cause = -1; |
30 | ||
31 | static char *get_reset_cause(void) | |
18936ee2 JL |
32 | { |
33 | u32 cause; | |
34 | struct src *src_regs = (struct src *)SRC_BASE_ADDR; | |
35 | ||
36 | cause = readl(&src_regs->srsr); | |
37 | writel(cause, &src_regs->srsr); | |
11c2e505 | 38 | reset_cause = cause; |
18936ee2 JL |
39 | |
40 | switch (cause) { | |
41 | case 0x00001: | |
cece2622 | 42 | case 0x00011: |
18936ee2 JL |
43 | return "POR"; |
44 | case 0x00004: | |
45 | return "CSU"; | |
46 | case 0x00008: | |
47 | return "IPP USER"; | |
48 | case 0x00010: | |
cd562c8d AA |
49 | #ifdef CONFIG_MX7 |
50 | return "WDOG1"; | |
51 | #else | |
18936ee2 | 52 | return "WDOG"; |
cd562c8d | 53 | #endif |
18936ee2 JL |
54 | case 0x00020: |
55 | return "JTAG HIGH-Z"; | |
56 | case 0x00040: | |
57 | return "JTAG SW"; | |
cd562c8d AA |
58 | case 0x00080: |
59 | return "WDOG3"; | |
60 | #ifdef CONFIG_MX7 | |
61 | case 0x00100: | |
62 | return "WDOG4"; | |
63 | case 0x00200: | |
64 | return "TEMPSENSE"; | |
65 | #else | |
66 | case 0x00100: | |
67 | return "TEMPSENSE"; | |
18936ee2 JL |
68 | case 0x10000: |
69 | return "WARM BOOT"; | |
cd562c8d | 70 | #endif |
18936ee2 JL |
71 | default: |
72 | return "unknown reset"; | |
73 | } | |
74 | } | |
75 | ||
11c2e505 EN |
76 | u32 get_imx_reset_cause(void) |
77 | { | |
78 | return reset_cause; | |
79 | } | |
28420e78 | 80 | #endif |
11c2e505 | 81 | |
eb0344d9 TK |
82 | #if defined(CONFIG_MX53) || defined(CONFIG_MX6) |
83 | #if defined(CONFIG_MX53) | |
3e9cbbbb | 84 | #define MEMCTL_BASE ESDCTL_BASE_ADDR |
eb0344d9 | 85 | #else |
3e9cbbbb | 86 | #define MEMCTL_BASE MMDC_P0_BASE_ADDR |
eb0344d9 TK |
87 | #endif |
88 | static const unsigned char col_lookup[] = {9, 10, 11, 8, 12, 9, 9, 9}; | |
89 | static const unsigned char bank_lookup[] = {3, 2}; | |
90 | ||
b07161c3 | 91 | /* these MMDC registers are common to the IMX53 and IMX6 */ |
eb0344d9 TK |
92 | struct esd_mmdc_regs { |
93 | uint32_t ctl; | |
94 | uint32_t pdc; | |
95 | uint32_t otc; | |
96 | uint32_t cfg0; | |
97 | uint32_t cfg1; | |
98 | uint32_t cfg2; | |
99 | uint32_t misc; | |
eb0344d9 TK |
100 | }; |
101 | ||
102 | #define ESD_MMDC_CTL_GET_ROW(mdctl) ((ctl >> 24) & 7) | |
103 | #define ESD_MMDC_CTL_GET_COLUMN(mdctl) ((ctl >> 20) & 7) | |
104 | #define ESD_MMDC_CTL_GET_WIDTH(mdctl) ((ctl >> 16) & 3) | |
105 | #define ESD_MMDC_CTL_GET_CS1(mdctl) ((ctl >> 30) & 1) | |
106 | #define ESD_MMDC_MISC_GET_BANK(mdmisc) ((misc >> 5) & 1) | |
107 | ||
b07161c3 TH |
108 | /* |
109 | * imx_ddr_size - return size in bytes of DRAM according MMDC config | |
110 | * The MMDC MDCTL register holds the number of bits for row, col, and data | |
111 | * width and the MMDC MDMISC register holds the number of banks. Combine | |
112 | * all these bits to determine the meme size the MMDC has been configured for | |
113 | */ | |
eb0344d9 TK |
114 | unsigned imx_ddr_size(void) |
115 | { | |
116 | struct esd_mmdc_regs *mem = (struct esd_mmdc_regs *)MEMCTL_BASE; | |
117 | unsigned ctl = readl(&mem->ctl); | |
118 | unsigned misc = readl(&mem->misc); | |
119 | int bits = 11 + 0 + 0 + 1; /* row + col + bank + width */ | |
120 | ||
121 | bits += ESD_MMDC_CTL_GET_ROW(ctl); | |
122 | bits += col_lookup[ESD_MMDC_CTL_GET_COLUMN(ctl)]; | |
123 | bits += bank_lookup[ESD_MMDC_MISC_GET_BANK(misc)]; | |
124 | bits += ESD_MMDC_CTL_GET_WIDTH(ctl); | |
125 | bits += ESD_MMDC_CTL_GET_CS1(ctl); | |
fcfdfdd5 MV |
126 | |
127 | /* The MX6 can do only 3840 MiB of DRAM */ | |
128 | if (bits == 32) | |
129 | return 0xf0000000; | |
130 | ||
eb0344d9 TK |
131 | return 1 << bits; |
132 | } | |
133 | #endif | |
134 | ||
18936ee2 | 135 | #if defined(CONFIG_DISPLAY_CPUINFO) |
a7683867 | 136 | |
20332a06 | 137 | const char *get_imx_type(u32 imxtype) |
a7683867 FE |
138 | { |
139 | switch (imxtype) { | |
cd562c8d AA |
140 | case MXC_CPU_MX7D: |
141 | return "7D"; /* Dual-core version of the mx7 */ | |
d0acd993 PF |
142 | case MXC_CPU_MX6QP: |
143 | return "6QP"; /* Quad-Plus version of the mx6 */ | |
144 | case MXC_CPU_MX6DP: | |
145 | return "6DP"; /* Dual-Plus version of the mx6 */ | |
20332a06 | 146 | case MXC_CPU_MX6Q: |
a7683867 | 147 | return "6Q"; /* Quad-core version of the mx6 */ |
94db6655 FE |
148 | case MXC_CPU_MX6D: |
149 | return "6D"; /* Dual-core version of the mx6 */ | |
20332a06 TK |
150 | case MXC_CPU_MX6DL: |
151 | return "6DL"; /* Dual Lite version of the mx6 */ | |
152 | case MXC_CPU_MX6SOLO: | |
153 | return "6SOLO"; /* Solo version of the mx6 */ | |
154 | case MXC_CPU_MX6SL: | |
a7683867 | 155 | return "6SL"; /* Solo-Lite version of the mx6 */ |
05d54b82 FE |
156 | case MXC_CPU_MX6SX: |
157 | return "6SX"; /* SoloX version of the mx6 */ | |
8631c06e PF |
158 | case MXC_CPU_MX6UL: |
159 | return "6UL"; /* Ultra-Lite version of the mx6 */ | |
20332a06 | 160 | case MXC_CPU_MX51: |
a7683867 | 161 | return "51"; |
20332a06 | 162 | case MXC_CPU_MX53: |
a7683867 FE |
163 | return "53"; |
164 | default: | |
e972d72b | 165 | return "??"; |
a7683867 FE |
166 | } |
167 | } | |
168 | ||
18936ee2 JL |
169 | int print_cpuinfo(void) |
170 | { | |
943a3f2c SB |
171 | u32 cpurev; |
172 | __maybe_unused u32 max_freq; | |
18936ee2 | 173 | |
1368f993 AA |
174 | cpurev = get_cpu_rev(); |
175 | ||
176 | #if defined(CONFIG_IMX_THERMAL) | |
7a264168 | 177 | struct udevice *thermal_dev; |
70caa8e2 | 178 | int cpu_tmp, minc, maxc, ret; |
a7683867 | 179 | |
b83ddac8 TH |
180 | printf("CPU: Freescale i.MX%s rev%d.%d", |
181 | get_imx_type((cpurev & 0xFF000) >> 12), | |
182 | (cpurev & 0x000F0) >> 4, | |
183 | (cpurev & 0x0000F) >> 0); | |
184 | max_freq = get_cpu_speed_grade_hz(); | |
185 | if (!max_freq || max_freq == mxc_get_clock(MXC_ARM_CLK)) { | |
186 | printf(" at %dMHz\n", mxc_get_clock(MXC_ARM_CLK) / 1000000); | |
187 | } else { | |
188 | printf(" %d MHz (running at %d MHz)\n", max_freq / 1000000, | |
189 | mxc_get_clock(MXC_ARM_CLK) / 1000000); | |
190 | } | |
191 | #else | |
a7683867 FE |
192 | printf("CPU: Freescale i.MX%s rev%d.%d at %d MHz\n", |
193 | get_imx_type((cpurev & 0xFF000) >> 12), | |
18936ee2 JL |
194 | (cpurev & 0x000F0) >> 4, |
195 | (cpurev & 0x0000F) >> 0, | |
196 | mxc_get_clock(MXC_ARM_CLK) / 1000000); | |
b83ddac8 | 197 | #endif |
7a264168 | 198 | |
1368f993 | 199 | #if defined(CONFIG_IMX_THERMAL) |
70caa8e2 TH |
200 | puts("CPU: "); |
201 | switch (get_cpu_temp_grade(&minc, &maxc)) { | |
202 | case TEMP_AUTOMOTIVE: | |
203 | puts("Automotive temperature grade "); | |
204 | break; | |
205 | case TEMP_INDUSTRIAL: | |
206 | puts("Industrial temperature grade "); | |
207 | break; | |
208 | case TEMP_EXTCOMMERCIAL: | |
209 | puts("Extended Commercial temperature grade "); | |
210 | break; | |
211 | default: | |
212 | puts("Commercial temperature grade "); | |
213 | break; | |
214 | } | |
215 | printf("(%dC to %dC)", minc, maxc); | |
7a264168 YL |
216 | ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev); |
217 | if (!ret) { | |
218 | ret = thermal_get_temp(thermal_dev, &cpu_tmp); | |
219 | ||
220 | if (!ret) | |
70caa8e2 | 221 | printf(" at %dC\n", cpu_tmp); |
7a264168 | 222 | else |
3a384b49 | 223 | debug(" - invalid sensor data\n"); |
7a264168 | 224 | } else { |
3a384b49 | 225 | debug(" - invalid sensor device\n"); |
7a264168 YL |
226 | } |
227 | #endif | |
228 | ||
18936ee2 JL |
229 | printf("Reset cause: %s\n", get_reset_cause()); |
230 | return 0; | |
231 | } | |
232 | #endif | |
233 | ||
234 | int cpu_eth_init(bd_t *bis) | |
235 | { | |
236 | int rc = -ENODEV; | |
237 | ||
238 | #if defined(CONFIG_FEC_MXC) | |
239 | rc = fecmxc_initialize(bis); | |
240 | #endif | |
241 | ||
242 | return rc; | |
243 | } | |
244 | ||
ecb0f317 | 245 | #ifdef CONFIG_FSL_ESDHC |
18936ee2 JL |
246 | /* |
247 | * Initializes on-chip MMC controllers. | |
248 | * to override, implement board_mmc_init() | |
249 | */ | |
250 | int cpu_mmc_init(bd_t *bis) | |
251 | { | |
18936ee2 | 252 | return fsl_esdhc_mmc_init(bis); |
18936ee2 | 253 | } |
ecb0f317 | 254 | #endif |
18936ee2 | 255 | |
cd562c8d | 256 | #ifndef CONFIG_MX7 |
6a376046 FE |
257 | u32 get_ahb_clk(void) |
258 | { | |
259 | struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; | |
260 | u32 reg, ahb_podf; | |
261 | ||
262 | reg = __raw_readl(&imx_ccm->cbcdr); | |
263 | reg &= MXC_CCM_CBCDR_AHB_PODF_MASK; | |
264 | ahb_podf = reg >> MXC_CCM_CBCDR_AHB_PODF_OFFSET; | |
265 | ||
266 | return get_periph_clk() / (ahb_podf + 1); | |
267 | } | |
cd562c8d | 268 | #endif |
e1eb75b5 | 269 | |
e1eb75b5 EN |
270 | void arch_preboot_os(void) |
271 | { | |
44b9841d NK |
272 | #if defined(CONFIG_CMD_SATA) |
273 | sata_stop(); | |
dd1c8f1b SM |
274 | #if defined(CONFIG_MX6) |
275 | disable_sata_clock(); | |
276 | #endif | |
44b9841d NK |
277 | #endif |
278 | #if defined(CONFIG_VIDEO_IPUV3) | |
e1eb75b5 EN |
279 | /* disable video before launching O/S */ |
280 | ipuv3_fb_shutdown(); | |
e1eb75b5 | 281 | #endif |
623787fd PF |
282 | #if defined(CONFIG_VIDEO_MXS) |
283 | lcdif_power_down(); | |
284 | #endif | |
44b9841d | 285 | } |
32c81ea6 FE |
286 | |
287 | void set_chipselect_size(int const cs_size) | |
288 | { | |
289 | unsigned int reg; | |
290 | struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; | |
291 | reg = readl(&iomuxc_regs->gpr[1]); | |
292 | ||
293 | switch (cs_size) { | |
294 | case CS0_128: | |
295 | reg &= ~0x7; /* CS0=128MB, CS1=0, CS2=0, CS3=0 */ | |
296 | reg |= 0x5; | |
297 | break; | |
298 | case CS0_64M_CS1_64M: | |
299 | reg &= ~0x3F; /* CS0=64MB, CS1=64MB, CS2=0, CS3=0 */ | |
300 | reg |= 0x1B; | |
301 | break; | |
302 | case CS0_64M_CS1_32M_CS2_32M: | |
303 | reg &= ~0x1FF; /* CS0=64MB, CS1=32MB, CS2=32MB, CS3=0 */ | |
304 | reg |= 0x4B; | |
305 | break; | |
306 | case CS0_32M_CS1_32M_CS2_32M_CS3_32M: | |
307 | reg &= ~0xFFF; /* CS0=32MB, CS1=32MB, CS2=32MB, CS3=32MB */ | |
308 | reg |= 0x249; | |
309 | break; | |
310 | default: | |
311 | printf("Unknown chip select size: %d\n", cs_size); | |
312 | break; | |
313 | } | |
314 | ||
315 | writel(reg, &iomuxc_regs->gpr[1]); | |
316 | } |