2 * (C) Copyright 2007-2008
3 * Stelian Pop <stelian@popies.net>
4 * Lead Tech Design <www.leadtechdesign.com>
7 * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
9 * See file CREDITS for list of people who contributed to this
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.
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.
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,
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>
35 #include <asm/arch/hardware.h>
37 DECLARE_GLOBAL_DATA_PTR;
39 /* ------------------------------------------------------------------------- */
41 * Miscelaneous platform dependent initialisations
44 static void tny_a9260_nand_hw_init(void)
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;
51 /* Assign CS3 to NAND/SmartMedia Interface */
52 csa = readl(&matrix->ebicsa);
53 csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
54 writel(csa, &matrix->ebicsa);
56 /* Configure SMC CS3 for NAND/SmartMedia */
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),
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),
63 writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
65 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
66 AT91_SMC_MODE_EXNW_DISABLE |
67 #ifdef CONFIG_SYS_NAND_DBW_16
68 AT91_SMC_MODE_DBW_16 |
69 #else /* CONFIG_SYS_NAND_DBW_8 */
72 AT91_SMC_MODE_TDF_CYCLE(2),
75 writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
77 /* Configure RDY/BSY */
78 at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
80 /* Enable NandFlash */
81 at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
89 #if defined(CONFIG_TNY_A9260)
90 gd->bd->bi_arch_number = MACH_TYPE_TNY_A9260;
91 #elif defined(CONFIG_TNY_A9G20)
92 gd->bd->bi_arch_number = MACH_TYPE_TNY_A9G20;
94 /* adress of boot parameters */
95 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
97 at91_seriald_hw_init();
98 tny_a9260_nand_hw_init();
99 at91_spi0_hw_init(1 << 5);
105 gd->ram_size = get_ram_size(
106 (void *)CONFIG_SYS_SDRAM_BASE,
107 CONFIG_SYS_SDRAM_SIZE);