at91sam9260ek: move board id setup to config header
[karo-tx-uboot.git] / board / atmel / at91sam9260ek / at91sam9260ek.c
1 /*
2  * (C) Copyright 2007-2008
3  * Stelian Pop <stelian@popies.net>
4  * Lead Tech Design <www.leadtechdesign.com>
5  *
6  * See file CREDITS for list of people who contributed to this
7  * project.
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License as
11  * published by the Free Software Foundation; either version 2 of
12  * the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22  * MA 02111-1307 USA
23  */
24
25 #include <common.h>
26 #include <asm/io.h>
27 #include <asm/arch/at91sam9260_matrix.h>
28 #include <asm/arch/at91sam9_smc.h>
29 #include <asm/arch/at91_common.h>
30 #include <asm/arch/at91_pmc.h>
31 #include <asm/arch/at91_rstc.h>
32 #include <asm/arch/gpio.h>
33 #include <atmel_mci.h>
34
35 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
36 # include <net.h>
37 #endif
38 #include <netdev.h>
39
40 DECLARE_GLOBAL_DATA_PTR;
41
42 /* ------------------------------------------------------------------------- */
43 /*
44  * Miscelaneous platform dependent initialisations
45  */
46
47 #ifdef CONFIG_CMD_NAND
48 static void at91sam9260ek_nand_hw_init(void)
49 {
50         struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
51         struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
52         unsigned long csa;
53
54         /* Assign CS3 to NAND/SmartMedia Interface */
55         csa = readl(&matrix->ebicsa);
56         csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
57         writel(csa, &matrix->ebicsa);
58
59         /* Configure SMC CS3 for NAND/SmartMedia */
60         writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
61                 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
62                 &smc->cs[3].setup);
63         writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
64                 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
65                 &smc->cs[3].pulse);
66         writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
67                 &smc->cs[3].cycle);
68         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
69                 AT91_SMC_MODE_EXNW_DISABLE |
70 #ifdef CONFIG_SYS_NAND_DBW_16
71                 AT91_SMC_MODE_DBW_16 |
72 #else /* CONFIG_SYS_NAND_DBW_8 */
73                 AT91_SMC_MODE_DBW_8 |
74 #endif
75                 AT91_SMC_MODE_TDF_CYCLE(2),
76                 &smc->cs[3].mode);
77
78         /* Configure RDY/BSY */
79         at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
80
81         /* Enable NandFlash */
82         at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
83
84 }
85 #endif
86
87 #ifdef CONFIG_MACB
88 static void at91sam9260ek_macb_hw_init(void)
89 {
90         struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
91         struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA;
92         struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC;
93         unsigned long erstl;
94
95         /* Enable EMAC clock */
96         writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
97
98         /*
99          * Disable pull-up on:
100          *      RXDV (PA17) => PHY normal mode (not Test mode)
101          *      ERX0 (PA14) => PHY ADDR0
102          *      ERX1 (PA15) => PHY ADDR1
103          *      ERX2 (PA25) => PHY ADDR2
104          *      ERX3 (PA26) => PHY ADDR3
105          *      ECRS (PA28) => PHY ADDR4  => PHYADDR = 0x0
106          *
107          * PHY has internal pull-down
108          */
109         writel(pin_to_mask(AT91_PIN_PA14) |
110                 pin_to_mask(AT91_PIN_PA15) |
111                 pin_to_mask(AT91_PIN_PA17) |
112                 pin_to_mask(AT91_PIN_PA25) |
113                 pin_to_mask(AT91_PIN_PA26) |
114                 pin_to_mask(AT91_PIN_PA28),
115                 &pioa->pudr);
116
117         erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
118
119         /* Need to reset PHY -> 500ms reset */
120         writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) |
121                 AT91_RSTC_MR_URSTEN, &rstc->mr);
122
123         writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
124
125         /* Wait for end hardware reset */
126         while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL))
127                 ;
128
129         /* Restore NRST value */
130         writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN,
131                 &rstc->mr);
132
133         /* Re-enable pull-up */
134         writel(pin_to_mask(AT91_PIN_PA14) |
135                 pin_to_mask(AT91_PIN_PA15) |
136                 pin_to_mask(AT91_PIN_PA17) |
137                 pin_to_mask(AT91_PIN_PA25) |
138                 pin_to_mask(AT91_PIN_PA26) |
139                 pin_to_mask(AT91_PIN_PA28),
140                 &pioa->puer);
141
142         /* Initialize EMAC=MACB hardware */
143         at91_macb_hw_init();
144 }
145 #endif
146
147 #ifdef CONFIG_GENERIC_ATMEL_MCI
148 int board_mmc_init(bd_t *bd)
149 {
150         at91_mci_hw_init();
151
152         return atmel_mci_init((void *)ATMEL_BASE_MCI);
153 }
154 #endif
155
156 int board_early_init_f(void)
157 {
158         struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
159
160         /* Enable clocks for all PIOs */
161         writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
162                 (1 << ATMEL_ID_PIOC),
163                 &pmc->pcer);
164
165         return 0;
166 }
167
168 int board_init(void)
169 {
170         /* adress of boot parameters */
171         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
172
173         at91_seriald_hw_init();
174 #ifdef CONFIG_CMD_NAND
175         at91sam9260ek_nand_hw_init();
176 #endif
177 #ifdef CONFIG_HAS_DATAFLASH
178         at91_spi0_hw_init((1 << 0) | (1 << 1));
179 #endif
180 #ifdef CONFIG_MACB
181         at91sam9260ek_macb_hw_init();
182 #endif
183
184         return 0;
185 }
186
187 int dram_init(void)
188 {
189         gd->ram_size = get_ram_size(
190                 (void *)CONFIG_SYS_SDRAM_BASE,
191                 CONFIG_SYS_SDRAM_SIZE);
192         return 0;
193 }
194
195 #ifdef CONFIG_RESET_PHY_R
196 void reset_phy(void)
197 {
198 }
199 #endif
200
201 int board_eth_init(bd_t *bis)
202 {
203         int rc = 0;
204 #ifdef CONFIG_MACB
205         rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
206 #endif
207         return rc;
208 }