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Tom Rix23b80982009-09-27 11:10:09 -05001/*
2 * (C) Copyright 2007-2008
3 * Stelian Pop <stelian.pop@leadtechdesign.com>
4 * Lead Tech Design <www.leadtechdesign.com>
5 * Ilko Iliev <www.ronetix.at>
6 *
7 * (C) Copyright 2009
8 * Eric Benard <eric@eukrea.com>
9 *
10 * See file CREDITS for list of people who contributed to this
11 * project.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 * MA 02111-1307 USA
27 */
28
29#include <common.h>
30#include <asm/sizes.h>
31#include <asm/arch/at91sam9260.h>
32#include <asm/arch/at91sam9_matrix.h>
33#include <asm/arch/at91sam9_smc.h>
34#include <asm/arch/at91_common.h>
35#include <asm/arch/at91_pmc.h>
36#include <asm/arch/at91_rstc.h>
37#include <asm/arch/gpio.h>
38#include <asm/arch/io.h>
39#include <asm/arch/hardware.h>
40#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
41#include <net.h>
42#endif
43#include <netdev.h>
44
45DECLARE_GLOBAL_DATA_PTR;
46
47/* ------------------------------------------------------------------------- */
48/*
49 * Miscelaneous platform dependent initialisations
50 */
51
52#ifdef CONFIG_CMD_NAND
53static void cpu9260_nand_hw_init(void)
54{
55 unsigned long csa;
56
57 /* Enable CS3 */
58 csa = at91_sys_read(AT91_MATRIX_EBICSA);
59 at91_sys_write(AT91_MATRIX_EBICSA,
60 csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
61
62 /* Configure SMC CS3 for NAND/SmartMedia */
63#if defined(CONFIG_CPU9G20)
64 at91_sys_write(AT91_SMC_SETUP(3),
65 AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) |
66 AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
67 at91_sys_write(AT91_SMC_PULSE(3),
68 AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(4) |
69 AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(4));
70 at91_sys_write(AT91_SMC_CYCLE(3),
71 AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
72 at91_sys_write(AT91_SMC_MODE(3),
73 AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
74 AT91_SMC_EXNWMODE_DISABLE |
75 AT91_SMC_DBW_8 |
76 AT91_SMC_TDF_(3));
77#elif defined(CONFIG_CPU9260)
78 at91_sys_write(AT91_SMC_SETUP(3),
79 AT91_SMC_NWESETUP_(1) | AT91_SMC_NCS_WRSETUP_(0) |
80 AT91_SMC_NRDSETUP_(1) | AT91_SMC_NCS_RDSETUP_(0));
81 at91_sys_write(AT91_SMC_PULSE(3),
82 AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) |
83 AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
84 at91_sys_write(AT91_SMC_CYCLE(3),
85 AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
86 at91_sys_write(AT91_SMC_MODE(3),
87 AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
88 AT91_SMC_EXNWMODE_DISABLE |
89 AT91_SMC_DBW_8 |
90 AT91_SMC_TDF_(2));
91#endif
92
93 at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC);
94
95 /* Configure RDY/BSY */
96 at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
97
98 /* Enable NandFlash */
99 at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
100}
101#endif
102
103#ifdef CONFIG_MACB
104static void cpu9260_macb_hw_init(void)
105{
106 unsigned long rstc;
107
108 /* Enable clock */
109 at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC);
110
111 /*
112 * Disable pull-up on:
113 * RXDV (PA17) => PHY normal mode (not Test mode)
114 * ERX0 (PA14) => PHY ADDR0
115 * ERX1 (PA15) => PHY ADDR1
116 * ERX2 (PA25) => PHY ADDR2
117 * ERX3 (PA26) => PHY ADDR3
118 * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
119 *
120 * PHY has internal pull-down
121 */
122 writel(pin_to_mask(AT91_PIN_PA14) |
123 pin_to_mask(AT91_PIN_PA15) |
124 pin_to_mask(AT91_PIN_PA17) |
125 pin_to_mask(AT91_PIN_PA25) |
126 pin_to_mask(AT91_PIN_PA26) |
127 pin_to_mask(AT91_PIN_PA28),
128 pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
129
130 rstc = at91_sys_read(AT91_RSTC_MR) & AT91_RSTC_ERSTL;
131
132 /* Need to reset PHY -> 500ms reset */
133 at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
134 (AT91_RSTC_ERSTL & (0x0D << 8)) |
135 AT91_RSTC_URSTEN);
136
137 at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
138
139 /* Wait for end hardware reset */
140 while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL))
141 ;
142
143 /* Restore NRST value */
144 at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
145 (rstc) |
146 AT91_RSTC_URSTEN);
147
148 /* Re-enable pull-up */
149 writel(pin_to_mask(AT91_PIN_PA14) |
150 pin_to_mask(AT91_PIN_PA15) |
151 pin_to_mask(AT91_PIN_PA17) |
152 pin_to_mask(AT91_PIN_PA25) |
153 pin_to_mask(AT91_PIN_PA26) |
154 pin_to_mask(AT91_PIN_PA28),
155 pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
156
157 at91_macb_hw_init();
158}
159#endif
160
161int board_init(void)
162{
163 /* Enable Ctrlc */
164 console_init_f();
165
166 /* arch number of the board */
167#if defined(CONFIG_CPU9G20)
Eric Benard94d50c52009-10-12 10:08:20 +0200168 gd->bd->bi_arch_number = MACH_TYPE_CPUAT9G20;
Tom Rix23b80982009-09-27 11:10:09 -0500169#elif defined(CONFIG_CPU9260)
170 gd->bd->bi_arch_number = MACH_TYPE_CPUAT9260;
171#endif
172
173 /* adress of boot parameters */
174 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
175
176 at91_serial_hw_init();
177#ifdef CONFIG_CMD_NAND
178 cpu9260_nand_hw_init();
179#endif
180#ifdef CONFIG_MACB
181 cpu9260_macb_hw_init();
182#endif
183#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
184 status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
185#endif
186 return 0;
187}
188
189int dram_init(void)
190{
191 gd->bd->bi_dram[0].start = PHYS_SDRAM;
192 if (get_ram_size((long *) PHYS_SDRAM, PHYS_SDRAM_SIZE) !=
193 PHYS_SDRAM_SIZE)
194 return -1;
195
196 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
197 return 0;
198}
199
200#ifdef CONFIG_RESET_PHY_R
201void reset_phy(void)
202{
203#ifdef CONFIG_MACB
204 /*
205 * Initialize ethernet HW addr prior to starting Linux,
206 * needed for nfsroot
207 */
208 eth_init(gd->bd);
209#endif
210}
211#endif
212
213int board_eth_init(bd_t *bis)
214{
215 int rc = 0;
216#ifdef CONFIG_MACB
217 rc = macb_eth_initialize(0, (void *)AT91SAM9260_BASE_EMAC, 0x00);
218#endif
219 return rc;
220}