1 /*
2 * (C) Copyright 2010
3 * Ilko Iliev <iliev@ronetix.at>
4 * Asen Dimov <dimov@ronetix.at>
5 * Ronetix GmbH <www.ronetix.at>
6 *
7 * (C) Copyright 2007-2008
8 * Stelian Pop <stelian@popies.net>
9 * Lead Tech Design <www.leadtechdesign.com>
10 *
11 * SPDX-License-Identifier: GPL-2.0+
12 */
13
14 #include <common.h>
15 #include <linux/sizes.h>
16 #include <asm/io.h>
17 #include <asm/gpio.h>
18 #include <asm/arch/at91sam9_smc.h>
19 #include <asm/arch/at91_common.h>
20 #include <asm/arch/at91_rstc.h>
21 #include <asm/arch/at91_matrix.h>
22 #include <asm/arch/gpio.h>
23 #include <asm/arch/clk.h>
24 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
25 #include <net.h>
26 #endif
27 #include <netdev.h>
28 #include <asm/mach-types.h>
29
30 DECLARE_GLOBAL_DATA_PTR;
31
32 /*
33 * Miscelaneous platform dependent initialisations
34 */
35
36 #ifdef CONFIG_CMD_NAND
pm9g45_nand_hw_init(void)37 static void pm9g45_nand_hw_init(void)
38 {
39 unsigned long csa;
40 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
41 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
42
43 /* Enable CS3 */
44 csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A;
45 writel(csa, &matrix->ccr[6]);
46
47 /* Configure SMC CS3 for NAND/SmartMedia */
48 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
49 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
50 &smc->cs[3].setup);
51
52 writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
53 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
54 &smc->cs[3].pulse);
55
56 writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
57 &smc->cs[3].cycle);
58
59 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
60 AT91_SMC_MODE_EXNW_DISABLE |
61 AT91_SMC_MODE_DBW_8 |
62 AT91_SMC_MODE_TDF_CYCLE(3),
63 &smc->cs[3].mode);
64
65 at91_periph_clk_enable(ATMEL_ID_PIOC);
66
67 #ifdef CONFIG_SYS_NAND_READY_PIN
68 /* Configure RDY/BSY */
69 gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
70 #endif
71
72 /* Enable NandFlash */
73 gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
74 }
75 #endif
76
77 #ifdef CONFIG_MACB
pm9g45_macb_hw_init(void)78 static void pm9g45_macb_hw_init(void)
79 {
80 /*
81 * PD2 enables the 50MHz oscillator for Ethernet PHY
82 * 1 - enable
83 * 0 - disable
84 */
85 at91_set_pio_output(AT91_PIO_PORTD, 2, 1);
86 at91_set_pio_value(AT91_PIO_PORTD, 2, 1); /* 1- enable, 0 - disable */
87
88 at91_periph_clk_enable(ATMEL_ID_EMAC);
89
90 /*
91 * Disable pull-up on:
92 * RXDV (PA15) => PHY normal mode (not Test mode)
93 * ERX0 (PA12) => PHY ADDR0
94 * ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
95 *
96 * PHY has internal pull-down
97 */
98 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
99 at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0);
100 at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0);
101
102 /* Re-enable pull-up */
103 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
104 at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1);
105 at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1);
106
107 at91_macb_hw_init();
108 }
109 #endif
110
board_early_init_f(void)111 int board_early_init_f(void)
112 {
113 at91_periph_clk_enable(ATMEL_ID_PIOA);
114 at91_periph_clk_enable(ATMEL_ID_PIOB);
115 at91_periph_clk_enable(ATMEL_ID_PIOC);
116 at91_periph_clk_enable(ATMEL_ID_PIODE);
117
118 at91_seriald_hw_init();
119
120 return 0;
121 }
122
board_init(void)123 int board_init(void)
124 {
125 /* arch number of AT91SAM9M10G45EK-Board */
126 gd->bd->bi_arch_number = MACH_TYPE_PM9G45;
127 /* adress of boot parameters */
128 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
129
130 #ifdef CONFIG_CMD_NAND
131 pm9g45_nand_hw_init();
132 #endif
133
134 #ifdef CONFIG_MACB
135 pm9g45_macb_hw_init();
136 #endif
137 return 0;
138 }
139
dram_init(void)140 int dram_init(void)
141 {
142 /* dram_init must store complete ramsize in gd->ram_size */
143 gd->ram_size = get_ram_size((void *)PHYS_SDRAM,
144 PHYS_SDRAM_SIZE);
145 return 0;
146 }
147
dram_init_banksize(void)148 int dram_init_banksize(void)
149 {
150 gd->bd->bi_dram[0].start = PHYS_SDRAM;
151 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
152
153 return 0;
154 }
155
156 #ifdef CONFIG_RESET_PHY_R
reset_phy(void)157 void reset_phy(void)
158 {
159 #ifdef CONFIG_MACB
160 /*
161 * Initialize ethernet HW addr prior to starting Linux,
162 * needed for nfsroot
163 */
164 eth_init();
165 #endif
166 }
167 #endif
168
board_eth_init(bd_t * bis)169 int board_eth_init(bd_t *bis)
170 {
171 int rc = 0;
172 #ifdef CONFIG_MACB
173 rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x01);
174 #endif
175 return rc;
176 }
177