1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2007-2008
4  * Stelian Pop <stelian@popies.net>
5  * Lead Tech Design <www.leadtechdesign.com>
6  */
7 
8 #include <common.h>
9 #include <debug_uart.h>
10 #include <init.h>
11 #include <net.h>
12 #include <asm/global_data.h>
13 #include <asm/io.h>
14 #include <asm/arch/at91sam9260_matrix.h>
15 #include <asm/arch/at91sam9_smc.h>
16 #include <asm/arch/at91_common.h>
17 #include <asm/arch/clk.h>
18 #include <asm/arch/gpio.h>
19 
20 DECLARE_GLOBAL_DATA_PTR;
21 
22 /* ------------------------------------------------------------------------- */
23 /*
24  * Miscelaneous platform dependent initialisations
25  */
26 
27 #ifdef CONFIG_CMD_NAND
at91sam9260ek_nand_hw_init(void)28 static void at91sam9260ek_nand_hw_init(void)
29 {
30 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
31 	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
32 	unsigned long csa;
33 
34 	/* Assign CS3 to NAND/SmartMedia Interface */
35 	csa = readl(&matrix->ebicsa);
36 	csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
37 	writel(csa, &matrix->ebicsa);
38 
39 	/* Configure SMC CS3 for NAND/SmartMedia */
40 	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
41 		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
42 		&smc->cs[3].setup);
43 	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
44 		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
45 		&smc->cs[3].pulse);
46 	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
47 		&smc->cs[3].cycle);
48 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
49 		AT91_SMC_MODE_EXNW_DISABLE |
50 #ifdef CONFIG_SYS_NAND_DBW_16
51 		AT91_SMC_MODE_DBW_16 |
52 #else /* CONFIG_SYS_NAND_DBW_8 */
53 		AT91_SMC_MODE_DBW_8 |
54 #endif
55 		AT91_SMC_MODE_TDF_CYCLE(2),
56 		&smc->cs[3].mode);
57 
58 	/* Configure RDY/BSY */
59 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
60 
61 	/* Enable NandFlash */
62 	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
63 
64 }
65 #endif
66 
67 #ifdef CONFIG_DEBUG_UART_BOARD_INIT
board_debug_uart_init(void)68 void board_debug_uart_init(void)
69 {
70 	at91_seriald_hw_init();
71 }
72 #endif
73 
74 #ifdef CONFIG_BOARD_EARLY_INIT_F
board_early_init_f(void)75 int board_early_init_f(void)
76 {
77 #ifdef CONFIG_DEBUG_UART
78 	debug_uart_init();
79 #endif
80 	return 0;
81 }
82 #endif
83 
board_init(void)84 int board_init(void)
85 {
86 	/* adress of boot parameters */
87 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
88 
89 #ifdef CONFIG_CMD_NAND
90 	at91sam9260ek_nand_hw_init();
91 #endif
92 	return 0;
93 }
94 
dram_init(void)95 int dram_init(void)
96 {
97 	gd->ram_size = get_ram_size(
98 		(void *)CONFIG_SYS_SDRAM_BASE,
99 		CONFIG_SYS_SDRAM_SIZE);
100 	return 0;
101 }
102 
103 #ifdef CONFIG_RESET_PHY_R
reset_phy(void)104 void reset_phy(void)
105 {
106 }
107 #endif
108