board: Remove unnecessary inclusion of micrel.h from boards
[oweals/u-boot.git] / board / atmel / sama5d3xek / sama5d3xek.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2012 - 2013 Atmel Corporation
4  * Bo Shen <voice.shen@atmel.com>
5  */
6
7 #include <common.h>
8 #include <init.h>
9 #include <asm/io.h>
10 #include <asm/arch/sama5d3_smc.h>
11 #include <asm/arch/at91_common.h>
12 #include <asm/arch/at91_rstc.h>
13 #include <asm/arch/gpio.h>
14 #include <asm/arch/clk.h>
15 #include <debug_uart.h>
16 #include <env.h>
17 #include <linux/ctype.h>
18 #include <spl.h>
19 #include <asm/arch/atmel_mpddrc.h>
20 #include <asm/arch/at91_wdt.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 /* ------------------------------------------------------------------------- */
25 /*
26  * Miscelaneous platform dependent initialisations
27  */
28
29 #ifdef CONFIG_NAND_ATMEL
30 void sama5d3xek_nand_hw_init(void)
31 {
32         struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
33
34         at91_periph_clk_enable(ATMEL_ID_SMC);
35
36         /* Configure SMC CS3 for NAND/SmartMedia */
37         writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
38                AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
39                &smc->cs[3].setup);
40         writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
41                AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
42                &smc->cs[3].pulse);
43         writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
44                &smc->cs[3].cycle);
45         writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
46                AT91_SMC_TIMINGS_TAR(3)  | AT91_SMC_TIMINGS_TRR(4)   |
47                AT91_SMC_TIMINGS_TWB(5)  | AT91_SMC_TIMINGS_RBNSEL(3)|
48                AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
49         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
50                AT91_SMC_MODE_EXNW_DISABLE |
51 #ifdef CONFIG_SYS_NAND_DBW_16
52                AT91_SMC_MODE_DBW_16 |
53 #else /* CONFIG_SYS_NAND_DBW_8 */
54                AT91_SMC_MODE_DBW_8 |
55 #endif
56                AT91_SMC_MODE_TDF_CYCLE(3),
57                &smc->cs[3].mode);
58 }
59 #endif
60
61 #ifdef CONFIG_MTD_NOR_FLASH
62 static void sama5d3xek_nor_hw_init(void)
63 {
64         struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
65
66         at91_periph_clk_enable(ATMEL_ID_SMC);
67
68         /* Configure SMC CS0 for NOR flash */
69         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
70                AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
71                &smc->cs[0].setup);
72         writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(11) |
73                AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(11),
74                &smc->cs[0].pulse);
75         writel(AT91_SMC_CYCLE_NWE(11) | AT91_SMC_CYCLE_NRD(14),
76                &smc->cs[0].cycle);
77         writel(AT91_SMC_TIMINGS_TCLR(0) | AT91_SMC_TIMINGS_TADL(0)  |
78                AT91_SMC_TIMINGS_TAR(0)  | AT91_SMC_TIMINGS_TRR(0)   |
79                AT91_SMC_TIMINGS_TWB(0)  | AT91_SMC_TIMINGS_RBNSEL(0)|
80                AT91_SMC_TIMINGS_NFSEL(0), &smc->cs[0].timings);
81         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
82                AT91_SMC_MODE_EXNW_DISABLE |
83                AT91_SMC_MODE_DBW_16 |
84                AT91_SMC_MODE_TDF_CYCLE(1),
85                &smc->cs[0].mode);
86
87         /* Address pin (A1 ~ A23) configuration */
88         at91_pio3_set_a_periph(AT91_PIO_PORTE, 1, 0);
89         at91_pio3_set_a_periph(AT91_PIO_PORTE, 2, 0);
90         at91_pio3_set_a_periph(AT91_PIO_PORTE, 3, 0);
91         at91_pio3_set_a_periph(AT91_PIO_PORTE, 4, 0);
92         at91_pio3_set_a_periph(AT91_PIO_PORTE, 5, 0);
93         at91_pio3_set_a_periph(AT91_PIO_PORTE, 6, 0);
94         at91_pio3_set_a_periph(AT91_PIO_PORTE, 7, 0);
95         at91_pio3_set_a_periph(AT91_PIO_PORTE, 8, 0);
96         at91_pio3_set_a_periph(AT91_PIO_PORTE, 9, 0);
97         at91_pio3_set_a_periph(AT91_PIO_PORTE, 10, 0);
98         at91_pio3_set_a_periph(AT91_PIO_PORTE, 11, 0);
99         at91_pio3_set_a_periph(AT91_PIO_PORTE, 12, 0);
100         at91_pio3_set_a_periph(AT91_PIO_PORTE, 13, 0);
101         at91_pio3_set_a_periph(AT91_PIO_PORTE, 14, 0);
102         at91_pio3_set_a_periph(AT91_PIO_PORTE, 15, 0);
103         at91_pio3_set_a_periph(AT91_PIO_PORTE, 16, 0);
104         at91_pio3_set_a_periph(AT91_PIO_PORTE, 17, 0);
105         at91_pio3_set_a_periph(AT91_PIO_PORTE, 18, 0);
106         at91_pio3_set_a_periph(AT91_PIO_PORTE, 19, 0);
107         at91_pio3_set_a_periph(AT91_PIO_PORTE, 20, 0);
108         at91_pio3_set_a_periph(AT91_PIO_PORTE, 21, 0);
109         at91_pio3_set_a_periph(AT91_PIO_PORTE, 22, 0);
110         at91_pio3_set_a_periph(AT91_PIO_PORTE, 23, 0);
111         /* CS0 pin configuration */
112         at91_pio3_set_a_periph(AT91_PIO_PORTE, 26, 0);
113 }
114 #endif
115
116 #ifdef CONFIG_CMD_USB
117 static void sama5d3xek_usb_hw_init(void)
118 {
119         at91_set_pio_output(AT91_PIO_PORTD, 25, 0);
120         at91_set_pio_output(AT91_PIO_PORTD, 26, 0);
121         at91_set_pio_output(AT91_PIO_PORTD, 27, 0);
122 }
123 #endif
124
125 #ifdef CONFIG_GENERIC_ATMEL_MCI
126 static void sama5d3xek_mci_hw_init(void)
127 {
128         at91_set_pio_output(AT91_PIO_PORTB, 10, 0);     /* MCI0 Power */
129 }
130 #endif
131
132 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
133 void board_debug_uart_init(void)
134 {
135         at91_seriald_hw_init();
136 }
137 #endif
138
139 #ifdef CONFIG_BOARD_EARLY_INIT_F
140 int board_early_init_f(void)
141 {
142 #ifdef CONFIG_DEBUG_UART
143         debug_uart_init();
144 #endif
145         return 0;
146 }
147 #endif
148
149 int board_init(void)
150 {
151         /* adress of boot parameters */
152         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
153
154 #ifdef CONFIG_NAND_ATMEL
155         sama5d3xek_nand_hw_init();
156 #endif
157 #ifdef CONFIG_MTD_NOR_FLASH
158         sama5d3xek_nor_hw_init();
159 #endif
160 #ifdef CONFIG_CMD_USB
161         sama5d3xek_usb_hw_init();
162 #endif
163 #ifdef CONFIG_GENERIC_ATMEL_MCI
164         sama5d3xek_mci_hw_init();
165 #endif
166         return 0;
167 }
168
169 int dram_init(void)
170 {
171         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
172                                     CONFIG_SYS_SDRAM_SIZE);
173         return 0;
174 }
175
176 #ifdef CONFIG_BOARD_LATE_INIT
177 int board_late_init(void)
178 {
179 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
180         const int MAX_STR_LEN = 32;
181         char name[MAX_STR_LEN], *p;
182         int i;
183
184         strncpy(name, get_cpu_name(), MAX_STR_LEN);
185         for (i = 0, p = name; (*p) && (i < MAX_STR_LEN); p++, i++)
186                 *p = tolower(*p);
187
188         strcat(name, "ek.dtb");
189         env_set("dtb_name", name);
190 #endif
191 #ifdef CONFIG_DM_VIDEO
192         at91_video_show_board_info();
193 #endif
194         return 0;
195 }
196 #endif
197
198 /* SPL */
199 #ifdef CONFIG_SPL_BUILD
200 void spl_board_init(void)
201 {
202 #if CONFIG_NAND_BOOT
203         sama5d3xek_nand_hw_init();
204 #endif
205 }
206
207 static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
208 {
209         ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
210
211         ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
212                     ATMEL_MPDDRC_CR_NR_ROW_14 |
213                     ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
214                     ATMEL_MPDDRC_CR_ENRDM_ON |
215                     ATMEL_MPDDRC_CR_NB_8BANKS |
216                     ATMEL_MPDDRC_CR_NDQS_DISABLED |
217                     ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
218                     ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
219         /*
220          * As the DDR2-SDRAm device requires a refresh time is 7.8125us
221          * when DDR run at 133MHz, so it needs (7.8125us * 133MHz / 10^9) clocks
222          */
223         ddr2->rtr = 0x411;
224
225         ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
226                       2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
227                       2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
228                       8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
229                       2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
230                       2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
231                       2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
232                       2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
233
234         ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
235                       200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
236                       28 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
237                       26 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
238
239         ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
240                       2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
241                       2 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
242                       7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
243                       8 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
244 }
245
246 void mem_init(void)
247 {
248         struct atmel_mpddrc_config ddr2;
249
250         ddr2_conf(&ddr2);
251
252         /* Enable MPDDR clock */
253         at91_periph_clk_enable(ATMEL_ID_MPDDRC);
254         at91_system_clk_enable(AT91_PMC_DDR);
255
256         /* DDRAM2 Controller initialize */
257         ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
258 }
259
260 void at91_pmc_init(void)
261 {
262         u32 tmp;
263
264         tmp = AT91_PMC_PLLAR_29 |
265               AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
266               AT91_PMC_PLLXR_MUL(43) |
267               AT91_PMC_PLLXR_DIV(1);
268         at91_plla_init(tmp);
269
270         at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3));
271
272         tmp = AT91_PMC_MCKR_MDIV_4 |
273               AT91_PMC_MCKR_CSS_PLLA;
274         at91_mck_init(tmp);
275 }
276 #endif