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2dc851e3 AT |
1 | /* |
2 | * (C) Copyright 2007-2008 | |
c9e798d3 | 3 | * Stelian Pop <stelian@popies.net> |
2dc851e3 AT |
4 | * Lead Tech Design <www.leadtechdesign.com> |
5 | * | |
6 | * Copyright (C) 2009 | |
7 | * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com> | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
2dc851e3 AT |
29 | #include <asm/arch/at91sam9_matrix.h> |
30 | #include <asm/arch/at91sam9_smc.h> | |
31 | #include <asm/arch/at91_common.h> | |
32 | #include <asm/arch/at91_pmc.h> | |
33 | #include <asm/arch/at91_rstc.h> | |
34 | #include <asm/arch/gpio.h> | |
2dc851e3 AT |
35 | #include <asm/arch/hardware.h> |
36 | ||
37 | DECLARE_GLOBAL_DATA_PTR; | |
38 | ||
39 | /* ------------------------------------------------------------------------- */ | |
40 | /* | |
41 | * Miscelaneous platform dependent initialisations | |
42 | */ | |
43 | ||
44 | static void tny_a9260_nand_hw_init(void) | |
45 | { | |
65b0f87a TP |
46 | struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; |
47 | struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; | |
48 | struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; | |
2dc851e3 AT |
49 | unsigned long csa; |
50 | ||
65b0f87a TP |
51 | /* Assign CS3 to NAND/SmartMedia Interface */ |
52 | csa = readl(&matrix->ebicsa); | |
53 | csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; | |
54 | writel(csa, &matrix->ebicsa); | |
2dc851e3 AT |
55 | |
56 | /* Configure SMC CS3 for NAND/SmartMedia */ | |
65b0f87a TP |
57 | writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | |
58 | AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), | |
59 | &smc->cs[3].setup); | |
60 | writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) | | |
61 | AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3), | |
62 | &smc->cs[3].pulse); | |
63 | writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5), | |
64 | &smc->cs[3].cycle); | |
65 | writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | | |
66 | AT91_SMC_MODE_EXNW_DISABLE | | |
2dc851e3 | 67 | #ifdef CONFIG_SYS_NAND_DBW_16 |
65b0f87a | 68 | AT91_SMC_MODE_DBW_16 | |
2dc851e3 | 69 | #else /* CONFIG_SYS_NAND_DBW_8 */ |
65b0f87a | 70 | AT91_SMC_MODE_DBW_8 | |
2dc851e3 | 71 | #endif |
65b0f87a TP |
72 | AT91_SMC_MODE_TDF_CYCLE(2), |
73 | &smc->cs[3].mode); | |
2dc851e3 | 74 | |
65b0f87a | 75 | writel(1 << ATMEL_ID_PIOC, &pmc->pcer); |
2dc851e3 AT |
76 | |
77 | /* Configure RDY/BSY */ | |
78 | at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); | |
79 | ||
80 | /* Enable NandFlash */ | |
81 | at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); | |
82 | } | |
83 | ||
84 | int board_init(void) | |
85 | { | |
2dc851e3 | 86 | /* adress of boot parameters */ |
65b0f87a | 87 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; |
2dc851e3 | 88 | |
65b0f87a | 89 | at91_seriald_hw_init(); |
2dc851e3 AT |
90 | tny_a9260_nand_hw_init(); |
91 | at91_spi0_hw_init(1 << 5); | |
92 | return 0; | |
93 | } | |
94 | ||
95 | int dram_init(void) | |
96 | { | |
65b0f87a TP |
97 | gd->ram_size = get_ram_size( |
98 | (void *)CONFIG_SYS_SDRAM_BASE, | |
99 | CONFIG_SYS_SDRAM_SIZE); | |
2dc851e3 AT |
100 | return 0; |
101 | } |