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 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/arch/at91sam9_matrix.h>
14 #include <asm/arch/at91sam9_smc.h>
15 #include <asm/arch/at91_common.h>
16 #include <asm/arch/at91_pmc.h>
17 #include <asm/arch/at91_rstc.h>
18 #include <asm/arch/gpio.h>
19 #include <asm/arch/hardware.h>
21 DECLARE_GLOBAL_DATA_PTR;
23 /* ------------------------------------------------------------------------- */
25 * Miscelaneous platform dependent initialisations
28 static void tny_a9260_nand_hw_init(void)
30 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
31 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
32 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
35 /* Assign CS3 to NAND/SmartMedia Interface */
36 csa = readl(&matrix->ebicsa);
37 csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
38 writel(csa, &matrix->ebicsa);
40 /* Configure SMC CS3 for NAND/SmartMedia */
41 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
42 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
44 writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
45 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
47 writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
49 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
50 AT91_SMC_MODE_EXNW_DISABLE |
51 #ifdef CONFIG_SYS_NAND_DBW_16
52 AT91_SMC_MODE_DBW_16 |
53 #else /* CONFIG_SYS_NAND_DBW_8 */
56 AT91_SMC_MODE_TDF_CYCLE(2),
59 writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
61 /* Configure RDY/BSY */
62 at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
64 /* Enable NandFlash */
65 at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
70 /* adress of boot parameters */
71 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
73 at91_seriald_hw_init();
74 tny_a9260_nand_hw_init();
75 at91_spi0_hw_init(1 << 5);
81 gd->ram_size = get_ram_size(
82 (void *)CONFIG_SYS_SDRAM_BASE,
83 CONFIG_SYS_SDRAM_SIZE);