2 * Copyright (C) 2017 Microchip Corporation
3 * Wenyou.Yang <wenyou.yang@microchip.com>
5 * SPDX-License-Identifier: GPL-2.0+
9 #include <debug_uart.h>
11 #include <asm/arch/at91_common.h>
12 #include <asm/arch/atmel_pio4.h>
13 #include <asm/arch/atmel_mpddrc.h>
14 #include <asm/arch/atmel_sdhci.h>
15 #include <asm/arch/clk.h>
16 #include <asm/arch/gpio.h>
17 #include <asm/arch/sama5d2.h>
19 DECLARE_GLOBAL_DATA_PTR
;
21 static void board_usb_hw_init(void)
23 atmel_pio4_set_pio_output(AT91_PIO_PORTB
, 10, 1);
26 #ifdef CONFIG_BOARD_LATE_INIT
27 int board_late_init(void)
29 #ifdef CONFIG_DM_VIDEO
30 at91_video_show_board_info();
36 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
37 static void board_uart1_hw_init(void)
39 atmel_pio4_set_a_periph(AT91_PIO_PORTD
, 2, 1); /* URXD1 */
40 atmel_pio4_set_a_periph(AT91_PIO_PORTD
, 3, 0); /* UTXD1 */
42 at91_periph_clk_enable(ATMEL_ID_UART1
);
45 void board_debug_uart_init(void)
47 board_uart1_hw_init();
51 #ifdef CONFIG_BOARD_EARLY_INIT_F
52 int board_early_init_f(void)
54 #ifdef CONFIG_DEBUG_UART
64 /* address of boot parameters */
65 gd
->bd
->bi_boot_params
= CONFIG_SYS_SDRAM_BASE
+ 0x100;
76 gd
->ram_size
= get_ram_size((void *)CONFIG_SYS_SDRAM_BASE
,
77 CONFIG_SYS_SDRAM_SIZE
);
81 #define MAC24AA_MAC_OFFSET 0xfa
83 #ifdef CONFIG_MISC_INIT_R
86 #ifdef CONFIG_I2C_EEPROM
87 at91_set_ethaddr(MAC24AA_MAC_OFFSET
);
94 #ifdef CONFIG_SPL_BUILD
95 void spl_board_init(void)
99 static void ddrc_conf(struct atmel_mpddrc_config
*ddrc
)
101 ddrc
->md
= (ATMEL_MPDDRC_MD_DBW_16_BITS
| ATMEL_MPDDRC_MD_DDR2_SDRAM
);
103 ddrc
->cr
= (ATMEL_MPDDRC_CR_NC_COL_10
|
104 ATMEL_MPDDRC_CR_NR_ROW_13
|
105 ATMEL_MPDDRC_CR_CAS_DDR_CAS3
|
106 ATMEL_MPDDRC_CR_DIC_DS
|
107 ATMEL_MPDDRC_CR_ZQ_LONG
|
108 ATMEL_MPDDRC_CR_NB_8BANKS
|
109 ATMEL_MPDDRC_CR_DECOD_INTERLEAVED
|
110 ATMEL_MPDDRC_CR_UNAL_SUPPORTED
);
114 ddrc
->tpr0
= ((7 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET
) |
115 (3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET
) |
116 (3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET
) |
117 (9 << ATMEL_MPDDRC_TPR0_TRC_OFFSET
) |
118 (3 << ATMEL_MPDDRC_TPR0_TRP_OFFSET
) |
119 (4 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET
) |
120 (4 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET
) |
121 (2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET
));
123 ddrc
->tpr1
= ((22 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET
) |
124 (23 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET
) |
125 (200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET
) |
126 (3 << ATMEL_MPDDRC_TPR1_TXP_OFFSET
));
128 ddrc
->tpr2
= ((2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET
) |
129 (8 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET
) |
130 (4 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET
) |
131 (4 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET
) |
132 (8 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET
));
137 struct at91_pmc
*pmc
= (struct at91_pmc
*)ATMEL_BASE_PMC
;
138 struct atmel_mpddr
*mpddrc
= (struct atmel_mpddr
*)ATMEL_BASE_MPDDRC
;
139 struct atmel_mpddrc_config ddrc_config
;
142 ddrc_conf(&ddrc_config
);
144 at91_periph_clk_enable(ATMEL_ID_MPDDRC
);
145 writel(AT91_PMC_DDR
, &pmc
->scer
);
147 reg
= readl(&mpddrc
->io_calibr
);
148 reg
&= ~ATMEL_MPDDRC_IO_CALIBR_RDIV
;
149 reg
|= ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55
;
150 reg
&= ~ATMEL_MPDDRC_IO_CALIBR_TZQIO
;
151 reg
|= ATMEL_MPDDRC_IO_CALIBR_TZQIO_(101);
152 writel(reg
, &mpddrc
->io_calibr
);
154 writel(ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE
,
155 &mpddrc
->rd_data_path
);
157 ddr3_init(ATMEL_BASE_MPDDRC
, ATMEL_BASE_DDRCS
, &ddrc_config
);
159 writel(0x3, &mpddrc
->cal_mr4
);
160 writel(64, &mpddrc
->tim_cal
);
163 void at91_pmc_init(void)
168 * while coming from the ROM code, we run on PLLA @ 492 MHz / 164 MHz
169 * so we need to slow down and configure MCKR accordingly.
170 * This is why we have a special flavor of the switching function.
172 tmp
= AT91_PMC_MCKR_PLLADIV_2
|
173 AT91_PMC_MCKR_MDIV_3
|
174 AT91_PMC_MCKR_CSS_MAIN
;
175 at91_mck_init_down(tmp
);
177 tmp
= AT91_PMC_PLLAR_29
|
178 AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
179 AT91_PMC_PLLXR_MUL(40) |
180 AT91_PMC_PLLXR_DIV(1);
183 tmp
= AT91_PMC_MCKR_H32MXDIV
|
184 AT91_PMC_MCKR_PLLADIV_2
|
185 AT91_PMC_MCKR_MDIV_3
|
186 AT91_PMC_MCKR_CSS_PLLA
;