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Asen Dimovb5d289f2010-04-20 22:49:04 +03001/*
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
Stelian Popc9e798d2011-11-01 00:00:39 +01008 * Stelian Pop <stelian@popies.net>
Asen Dimovb5d289f2010-04-20 22:49:04 +03009 * Lead Tech Design <www.leadtechdesign.com>
10 *
Wolfgang Denk1a459662013-07-08 09:37:19 +020011 * SPDX-License-Identifier: GPL-2.0+
Asen Dimovb5d289f2010-04-20 22:49:04 +030012 */
13
14#include <common.h>
Alexey Brodkin1ace4022014-02-26 17:47:58 +040015#include <linux/sizes.h>
Asen Dimoveb6e6082011-06-08 22:01:37 +000016#include <asm/io.h>
Andreas Bießmannac45bb12013-11-29 12:13:45 +010017#include <asm/gpio.h>
Asen Dimovb5d289f2010-04-20 22:49:04 +030018#include <asm/arch/at91sam9_smc.h>
19#include <asm/arch/at91_common.h>
20#include <asm/arch/at91_pmc.h>
21#include <asm/arch/at91_rstc.h>
22#include <asm/arch/at91_matrix.h>
Asen Dimoveb6e6082011-06-08 22:01:37 +000023#include <asm/arch/gpio.h>
Asen Dimovb5d289f2010-04-20 22:49:04 +030024#include <asm/arch/clk.h>
Asen Dimovb5d289f2010-04-20 22:49:04 +030025#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
26#include <net.h>
27#endif
28#include <netdev.h>
29
30DECLARE_GLOBAL_DATA_PTR;
31
32/*
33 * Miscelaneous platform dependent initialisations
34 */
35
36#ifdef CONFIG_CMD_NAND
37static void pm9g45_nand_hw_init(void)
38{
39 unsigned long csa;
Asen Dimoveb6e6082011-06-08 22:01:37 +000040 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
41 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
42 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
Asen Dimovb5d289f2010-04-20 22:49:04 +030043
44 /* Enable CS3 */
45 csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A;
46 writel(csa, &matrix->ccr[6]);
47
48 /* Configure SMC CS3 for NAND/SmartMedia */
49 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
50 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
51 &smc->cs[3].setup);
52
53 writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
54 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
55 &smc->cs[3].pulse);
56
57 writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
58 &smc->cs[3].cycle);
59
60 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
61 AT91_SMC_MODE_EXNW_DISABLE |
62 AT91_SMC_MODE_DBW_8 |
63 AT91_SMC_MODE_TDF_CYCLE(3),
64 &smc->cs[3].mode);
65
Asen Dimoveb6e6082011-06-08 22:01:37 +000066 writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
Asen Dimovb5d289f2010-04-20 22:49:04 +030067
68#ifdef CONFIG_SYS_NAND_READY_PIN
69 /* Configure RDY/BSY */
Andreas Bießmannac45bb12013-11-29 12:13:45 +010070 gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
Asen Dimovb5d289f2010-04-20 22:49:04 +030071#endif
72
73 /* Enable NandFlash */
Andreas Bießmannac45bb12013-11-29 12:13:45 +010074 gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
Asen Dimovb5d289f2010-04-20 22:49:04 +030075}
76#endif
77
78#ifdef CONFIG_MACB
79static void pm9g45_macb_hw_init(void)
80{
Asen Dimoveb6e6082011-06-08 22:01:37 +000081 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
Asen Dimovb5d289f2010-04-20 22:49:04 +030082
83 /*
84 * PD2 enables the 50MHz oscillator for Ethernet PHY
85 * 1 - enable
86 * 0 - disable
87 */
88 at91_set_pio_output(AT91_PIO_PORTD, 2, 1);
89 at91_set_pio_value(AT91_PIO_PORTD, 2, 1); /* 1- enable, 0 - disable */
90
91 /* Enable clock */
Asen Dimoveb6e6082011-06-08 22:01:37 +000092 writel(1 << ATMEL_ID_EMAC, &pmc->pcer);
Asen Dimovb5d289f2010-04-20 22:49:04 +030093
94 /*
95 * Disable pull-up on:
96 * RXDV (PA15) => PHY normal mode (not Test mode)
97 * ERX0 (PA12) => PHY ADDR0
98 * ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0
99 *
100 * PHY has internal pull-down
101 */
102 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
103 at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0);
104 at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0);
105
106 /* Re-enable pull-up */
107 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
108 at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1);
109 at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1);
110
111 at91_macb_hw_init();
112}
113#endif
114
Asen Dimovc4df2142011-12-09 11:00:07 +0000115int board_early_init_f(void)
Asen Dimovb5d289f2010-04-20 22:49:04 +0300116{
Asen Dimoveb6e6082011-06-08 22:01:37 +0000117 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
Asen Dimovb5d289f2010-04-20 22:49:04 +0300118
Asen Dimovc4df2142011-12-09 11:00:07 +0000119 /* Enable clocks for all PIOs */
Asen Dimoveb6e6082011-06-08 22:01:37 +0000120 writel((1 << ATMEL_ID_PIOA) |
121 (1 << ATMEL_ID_PIOB) |
122 (1 << ATMEL_ID_PIOC) |
123 (1 << ATMEL_ID_PIODE), &pmc->pcer);
Asen Dimovb5d289f2010-04-20 22:49:04 +0300124
Asen Dimovc4df2142011-12-09 11:00:07 +0000125 at91_seriald_hw_init();
126
127 return 0;
128}
129
130int board_init(void)
131{
132 /* arch number of AT91SAM9M10G45EK-Board */
133 gd->bd->bi_arch_number = MACH_TYPE_PM9G45;
Asen Dimovb5d289f2010-04-20 22:49:04 +0300134 /* adress of boot parameters */
135 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
136
Asen Dimovb5d289f2010-04-20 22:49:04 +0300137#ifdef CONFIG_CMD_NAND
138 pm9g45_nand_hw_init();
139#endif
140
141#ifdef CONFIG_MACB
142 pm9g45_macb_hw_init();
143#endif
144 return 0;
145}
146
147int dram_init(void)
148{
Asen Dimov510f7942010-12-12 00:42:28 +0000149 /* dram_init must store complete ramsize in gd->ram_size */
Albert ARIBAUDa55d23c2011-07-03 05:55:33 +0000150 gd->ram_size = get_ram_size((void *)PHYS_SDRAM,
Asen Dimov510f7942010-12-12 00:42:28 +0000151 PHYS_SDRAM_SIZE);
152 return 0;
153}
154
155void dram_init_banksize(void)
156{
Asen Dimovb5d289f2010-04-20 22:49:04 +0300157 gd->bd->bi_dram[0].start = PHYS_SDRAM;
158 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
Asen Dimovb5d289f2010-04-20 22:49:04 +0300159}
160
161#ifdef CONFIG_RESET_PHY_R
162void reset_phy(void)
163{
164#ifdef CONFIG_MACB
165 /*
166 * Initialize ethernet HW addr prior to starting Linux,
167 * needed for nfsroot
168 */
169 eth_init(gd->bd);
170#endif
171}
172#endif
173
174int board_eth_init(bd_t *bis)
175{
176 int rc = 0;
177#ifdef CONFIG_MACB
Asen Dimoveb6e6082011-06-08 22:01:37 +0000178 rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x01);
Asen Dimovb5d289f2010-04-20 22:49:04 +0300179#endif
180 return rc;
181}