1 /* 2 * (C) Copyright 2010 3 * Ilko Iliev <iliev@ronetix.at> 4 * Asen Dimov <dimov@ronetix.at> 5 * Ronetix GmbH <www.ronetix.at> 6 * 7 * (C) Copyright 2007-2008 8 * Stelian Pop <stelian@popies.net> 9 * Lead Tech Design <www.leadtechdesign.com> 10 * 11 * SPDX-License-Identifier: GPL-2.0+ 12 */ 13 14 #include <common.h> 15 #include <linux/sizes.h> 16 #include <asm/io.h> 17 #include <asm/gpio.h> 18 #include <asm/arch/at91sam9_smc.h> 19 #include <asm/arch/at91_common.h> 20 #include <asm/arch/at91_rstc.h> 21 #include <asm/arch/at91_matrix.h> 22 #include <asm/arch/gpio.h> 23 #include <asm/arch/clk.h> 24 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) 25 #include <net.h> 26 #endif 27 #include <netdev.h> 28 #include <asm/mach-types.h> 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 /* 33 * Miscelaneous platform dependent initialisations 34 */ 35 36 #ifdef CONFIG_CMD_NAND 37 static void pm9g45_nand_hw_init(void) 38 { 39 unsigned long csa; 40 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; 41 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; 42 43 /* Enable CS3 */ 44 csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A; 45 writel(csa, &matrix->ccr[6]); 46 47 /* Configure SMC CS3 for NAND/SmartMedia */ 48 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | 49 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), 50 &smc->cs[3].setup); 51 52 writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) | 53 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2), 54 &smc->cs[3].pulse); 55 56 writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4), 57 &smc->cs[3].cycle); 58 59 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | 60 AT91_SMC_MODE_EXNW_DISABLE | 61 AT91_SMC_MODE_DBW_8 | 62 AT91_SMC_MODE_TDF_CYCLE(3), 63 &smc->cs[3].mode); 64 65 at91_periph_clk_enable(ATMEL_ID_PIOC); 66 67 #ifdef CONFIG_SYS_NAND_READY_PIN 68 /* Configure RDY/BSY */ 69 gpio_direction_input(CONFIG_SYS_NAND_READY_PIN); 70 #endif 71 72 /* Enable NandFlash */ 73 gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); 74 } 75 #endif 76 77 #ifdef CONFIG_MACB 78 static void pm9g45_macb_hw_init(void) 79 { 80 /* 81 * PD2 enables the 50MHz oscillator for Ethernet PHY 82 * 1 - enable 83 * 0 - disable 84 */ 85 at91_set_pio_output(AT91_PIO_PORTD, 2, 1); 86 at91_set_pio_value(AT91_PIO_PORTD, 2, 1); /* 1- enable, 0 - disable */ 87 88 at91_periph_clk_enable(ATMEL_ID_EMAC); 89 90 /* 91 * Disable pull-up on: 92 * RXDV (PA15) => PHY normal mode (not Test mode) 93 * ERX0 (PA12) => PHY ADDR0 94 * ERX1 (PA13) => PHY ADDR1 => PHYADDR = 0x0 95 * 96 * PHY has internal pull-down 97 */ 98 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0); 99 at91_set_pio_pullup(AT91_PIO_PORTA, 12, 0); 100 at91_set_pio_pullup(AT91_PIO_PORTA, 13, 0); 101 102 /* Re-enable pull-up */ 103 at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1); 104 at91_set_pio_pullup(AT91_PIO_PORTA, 12, 1); 105 at91_set_pio_pullup(AT91_PIO_PORTA, 13, 1); 106 107 at91_macb_hw_init(); 108 } 109 #endif 110 111 int board_early_init_f(void) 112 { 113 at91_periph_clk_enable(ATMEL_ID_PIOA); 114 at91_periph_clk_enable(ATMEL_ID_PIOB); 115 at91_periph_clk_enable(ATMEL_ID_PIOC); 116 at91_periph_clk_enable(ATMEL_ID_PIODE); 117 118 at91_seriald_hw_init(); 119 120 return 0; 121 } 122 123 int board_init(void) 124 { 125 /* arch number of AT91SAM9M10G45EK-Board */ 126 gd->bd->bi_arch_number = MACH_TYPE_PM9G45; 127 /* adress of boot parameters */ 128 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; 129 130 #ifdef CONFIG_CMD_NAND 131 pm9g45_nand_hw_init(); 132 #endif 133 134 #ifdef CONFIG_MACB 135 pm9g45_macb_hw_init(); 136 #endif 137 return 0; 138 } 139 140 int dram_init(void) 141 { 142 /* dram_init must store complete ramsize in gd->ram_size */ 143 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, 144 PHYS_SDRAM_SIZE); 145 return 0; 146 } 147 148 int dram_init_banksize(void) 149 { 150 gd->bd->bi_dram[0].start = PHYS_SDRAM; 151 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE; 152 153 return 0; 154 } 155 156 #ifdef CONFIG_RESET_PHY_R 157 void reset_phy(void) 158 { 159 #ifdef CONFIG_MACB 160 /* 161 * Initialize ethernet HW addr prior to starting Linux, 162 * needed for nfsroot 163 */ 164 eth_init(); 165 #endif 166 } 167 #endif 168 169 int board_eth_init(bd_t *bis) 170 { 171 int rc = 0; 172 #ifdef CONFIG_MACB 173 rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x01); 174 #endif 175 return rc; 176 } 177