1 /* 2 * (C) Copyright 2007-2008 3 * Stelian Pop <stelian.pop@leadtechdesign.com> 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 34 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) 35 # include <net.h> 36 #endif 37 #include <netdev.h> 38 39 DECLARE_GLOBAL_DATA_PTR; 40 41 /* ------------------------------------------------------------------------- */ 42 /* 43 * Miscelaneous platform dependent initialisations 44 */ 45 46 #ifdef CONFIG_CMD_NAND 47 static void at91sam9260ek_nand_hw_init(void) 48 { 49 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; 50 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; 51 unsigned long csa; 52 53 /* Assign CS3 to NAND/SmartMedia Interface */ 54 csa = readl(&matrix->ebicsa); 55 csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; 56 writel(csa, &matrix->ebicsa); 57 58 /* Configure SMC CS3 for NAND/SmartMedia */ 59 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | 60 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), 61 &smc->cs[3].setup); 62 writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) | 63 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3), 64 &smc->cs[3].pulse); 65 writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5), 66 &smc->cs[3].cycle); 67 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | 68 AT91_SMC_MODE_EXNW_DISABLE | 69 #ifdef CONFIG_SYS_NAND_DBW_16 70 AT91_SMC_MODE_DBW_16 | 71 #else /* CONFIG_SYS_NAND_DBW_8 */ 72 AT91_SMC_MODE_DBW_8 | 73 #endif 74 AT91_SMC_MODE_TDF_CYCLE(2), 75 &smc->cs[3].mode); 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 #endif 85 86 #ifdef CONFIG_MACB 87 static void at91sam9260ek_macb_hw_init(void) 88 { 89 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; 90 struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; 91 struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC; 92 unsigned long erstl; 93 94 /* Enable EMAC clock */ 95 writel(1 << ATMEL_ID_EMAC0, &pmc->pcer); 96 97 /* 98 * Disable pull-up on: 99 * RXDV (PA17) => PHY normal mode (not Test mode) 100 * ERX0 (PA14) => PHY ADDR0 101 * ERX1 (PA15) => PHY ADDR1 102 * ERX2 (PA25) => PHY ADDR2 103 * ERX3 (PA26) => PHY ADDR3 104 * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0 105 * 106 * PHY has internal pull-down 107 */ 108 writel(pin_to_mask(AT91_PIN_PA14) | 109 pin_to_mask(AT91_PIN_PA15) | 110 pin_to_mask(AT91_PIN_PA17) | 111 pin_to_mask(AT91_PIN_PA25) | 112 pin_to_mask(AT91_PIN_PA26) | 113 pin_to_mask(AT91_PIN_PA28), 114 &pioa->pudr); 115 116 erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK; 117 118 /* Need to reset PHY -> 500ms reset */ 119 writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) | 120 AT91_RSTC_MR_URSTEN, &rstc->mr); 121 122 writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr); 123 124 /* Wait for end hardware reset */ 125 while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL)) 126 ; 127 128 /* Restore NRST value */ 129 writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN, 130 &rstc->mr); 131 132 /* Re-enable pull-up */ 133 writel(pin_to_mask(AT91_PIN_PA14) | 134 pin_to_mask(AT91_PIN_PA15) | 135 pin_to_mask(AT91_PIN_PA17) | 136 pin_to_mask(AT91_PIN_PA25) | 137 pin_to_mask(AT91_PIN_PA26) | 138 pin_to_mask(AT91_PIN_PA28), 139 &pioa->puer); 140 141 /* Initialize EMAC=MACB hardware */ 142 at91_macb_hw_init(); 143 } 144 #endif 145 146 int board_early_init_f(void) 147 { 148 struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; 149 150 /* Enable clocks for all PIOs */ 151 writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) | 152 (1 << ATMEL_ID_PIOC), 153 &pmc->pcer); 154 155 return 0; 156 } 157 158 int board_init(void) 159 { 160 #ifdef CONFIG_AT91SAM9G20EK 161 /* arch number of AT91SAM9260EK-Board */ 162 gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9G20EK; 163 #else 164 /* arch number of AT91SAM9260EK-Board */ 165 gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9260EK; 166 #endif 167 /* adress of boot parameters */ 168 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 169 170 at91_seriald_hw_init(); 171 #ifdef CONFIG_CMD_NAND 172 at91sam9260ek_nand_hw_init(); 173 #endif 174 #ifdef CONFIG_HAS_DATAFLASH 175 at91_spi0_hw_init((1 << 0) | (1 << 1)); 176 #endif 177 #ifdef CONFIG_MACB 178 at91sam9260ek_macb_hw_init(); 179 #endif 180 181 return 0; 182 } 183 184 int dram_init(void) 185 { 186 gd->ram_size = get_ram_size( 187 (void *)CONFIG_SYS_SDRAM_BASE, 188 CONFIG_SYS_SDRAM_SIZE); 189 return 0; 190 } 191 192 #ifdef CONFIG_RESET_PHY_R 193 void reset_phy(void) 194 { 195 } 196 #endif 197 198 int board_eth_init(bd_t *bis) 199 { 200 int rc = 0; 201 #ifdef CONFIG_MACB 202 rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00); 203 #endif 204 return rc; 205 } 206