1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018 Microchip Technology Inc. and its subsidiaries
*
* Author: Sandeep Sheriker M <sandeep.sheriker@microchip.com>
*/
#include <common.h>
#include <init.h>
#include <asm/io.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_sfr.h>
#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <debug_uart.h>
#include <asm/mach-types.h>
extern void at91_pda_detect(void);
DECLARE_GLOBAL_DATA_PTR;
void at91_prepare_cpu_var(void);
#ifdef CONFIG_CMD_NAND
static void sam9x60ek_nand_hw_init(void)
{
struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
unsigned int csa;
at91_pio3_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */
at91_pio3_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */
at91_pio3_set_a_periph(AT91_PIO_PORTD, 2, 0); /* NAND ALE */
at91_pio3_set_a_periph(AT91_PIO_PORTD, 3, 0); /* NAND CLE */
/* Enable NandFlash */
at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
/* Configure RDY/BSY */
at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 6, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 7, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 8, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 9, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 10, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 11, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 12, 1);
at91_pio3_set_a_periph(AT91_PIO_PORTD, 13, 1);
at91_periph_clk_enable(ATMEL_ID_PIOD);
/* Enable CS3 */
csa = readl(&sfr->ebicsa);
csa |= AT91_SFR_CCFG_EBI_CSA(3, 1) | AT91_SFR_CCFG_NFD0_ON_D16;
/* Configure IO drive */
csa &= ~AT91_SFR_CCFG_EBI_DRIVE_SAM9X60;
writel(csa, &sfr->ebicsa);
/* Configure SMC CS3 for NAND/SmartMedia */
writel(AT91_SMC_SETUP_NWE(4), &smc->cs[3].setup);
writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(20) |
AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(20),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(20) | AT91_SMC_CYCLE_NRD(20),
&smc->cs[3].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
#ifdef CONFIG_SYS_NAND_DBW_16
AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
AT91_SMC_MODE_DBW_8 |
#endif
AT91_SMC_MODE_TDF | AT91_SMC_MODE_TDF_CYCLE(15),
&smc->cs[3].mode);
}
#endif
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
at91_prepare_cpu_var();
at91_pda_detect();
return 0;
}
#endif
#ifdef CONFIG_DEBUG_UART_BOARD_INIT
void board_debug_uart_init(void)
{
at91_seriald_hw_init();
}
#endif
#ifdef CONFIG_BOARD_EARLY_INIT_F
int board_early_init_f(void)
{
#ifdef CONFIG_DEBUG_UART
debug_uart_init();
#endif
return 0;
}
#endif
#define MAC24AA_MAC_OFFSET 0xfa
#ifdef CONFIG_MISC_INIT_R
int misc_init_r(void)
{
#ifdef CONFIG_I2C_EEPROM
at91_set_ethaddr(MAC24AA_MAC_OFFSET);
#endif
return 0;
}
#endif
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
#ifdef CONFIG_CMD_NAND
sam9x60ek_nand_hw_init();
#endif
return 0;
}
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
return 0;
}
|
