Ryan Mallon | b8d41dd | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Bluewater Systems Snapper 9260/9G20 modules |
| 3 | * |
| 4 | * (C) Copyright 2011 Bluewater Systems |
| 5 | * Author: Andre Renaud <andre@bluewatersys.com> |
| 6 | * Author: Ryan Mallon <ryan@bluewatersys.com> |
| 7 | * |
Wolfgang Denk | 1a45966 | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 8 | * SPDX-License-Identifier: GPL-2.0+ |
Ryan Mallon | b8d41dd | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #include <common.h> |
| 12 | #include <asm/io.h> |
| 13 | #include <asm/arch/at91sam9260_matrix.h> |
| 14 | #include <asm/arch/at91sam9_smc.h> |
| 15 | #include <asm/arch/at91_common.h> |
| 16 | #include <asm/arch/at91_pmc.h> |
Ryan Mallon | b8d41dd | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 17 | #include <asm/arch/gpio.h> |
| 18 | #include <net.h> |
| 19 | #include <netdev.h> |
| 20 | #include <i2c.h> |
| 21 | #include <pca953x.h> |
| 22 | |
| 23 | DECLARE_GLOBAL_DATA_PTR; |
| 24 | |
| 25 | /* IO Expander pins */ |
| 26 | #define IO_EXP_ETH_RESET (0 << 1) |
| 27 | #define IO_EXP_ETH_POWER (1 << 1) |
| 28 | |
| 29 | static void macb_hw_init(void) |
| 30 | { |
| 31 | struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; |
| 32 | struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; |
Ryan Mallon | b8d41dd | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 33 | |
| 34 | /* Enable clock */ |
| 35 | writel(1 << ATMEL_ID_EMAC0, &pmc->pcer); |
| 36 | |
| 37 | /* Disable pull-ups to prevent PHY going into test mode */ |
| 38 | writel(pin_to_mask(AT91_PIN_PA14) | |
| 39 | pin_to_mask(AT91_PIN_PA15) | |
| 40 | pin_to_mask(AT91_PIN_PA18), |
| 41 | &pioa->pudr); |
| 42 | |
| 43 | /* Power down ethernet */ |
| 44 | pca953x_set_dir(0x28, IO_EXP_ETH_POWER, PCA953X_DIR_OUT); |
| 45 | pca953x_set_val(0x28, IO_EXP_ETH_POWER, 1); |
| 46 | |
| 47 | /* Hold ethernet in reset */ |
| 48 | pca953x_set_dir(0x28, IO_EXP_ETH_RESET, PCA953X_DIR_OUT); |
| 49 | pca953x_set_val(0x28, IO_EXP_ETH_RESET, 0); |
| 50 | |
| 51 | /* Enable ethernet power */ |
| 52 | pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0); |
| 53 | |
Heiko Schocher | 4535a24 | 2013-11-18 08:07:23 +0100 | [diff] [blame] | 54 | at91_phy_reset(); |
Ryan Mallon | b8d41dd | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 55 | |
| 56 | /* Bring the ethernet out of reset */ |
| 57 | pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1); |
| 58 | |
| 59 | /* The phy internal reset take 21ms */ |
| 60 | udelay(21 * 1000); |
| 61 | |
| 62 | /* Re-enable pull-up */ |
| 63 | writel(pin_to_mask(AT91_PIN_PA14) | |
| 64 | pin_to_mask(AT91_PIN_PA15) | |
| 65 | pin_to_mask(AT91_PIN_PA18), |
| 66 | &pioa->puer); |
| 67 | |
| 68 | at91_macb_hw_init(); |
| 69 | } |
| 70 | |
| 71 | static void nand_hw_init(void) |
| 72 | { |
| 73 | struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; |
| 74 | struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; |
| 75 | unsigned long csa; |
| 76 | |
| 77 | /* Enable CS3 as NAND/SmartMedia */ |
| 78 | csa = readl(&matrix->ebicsa); |
| 79 | csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; |
| 80 | writel(csa, &matrix->ebicsa); |
| 81 | |
| 82 | /* Configure SMC CS3 for NAND/SmartMedia */ |
| 83 | writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) | |
| 84 | AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0), |
| 85 | &smc->cs[3].setup); |
| 86 | writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) | |
| 87 | AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4), |
| 88 | &smc->cs[3].pulse); |
| 89 | writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7), |
| 90 | &smc->cs[3].cycle); |
| 91 | writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | |
| 92 | AT91_SMC_MODE_EXNW_DISABLE | |
| 93 | AT91_SMC_MODE_DBW_8 | |
| 94 | AT91_SMC_MODE_TDF_CYCLE(3), |
| 95 | &smc->cs[3].mode); |
| 96 | |
| 97 | /* Configure RDY/BSY */ |
| 98 | at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); |
| 99 | |
| 100 | /* Enable NandFlash */ |
| 101 | at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); |
| 102 | } |
| 103 | |
| 104 | int board_init(void) |
| 105 | { |
| 106 | struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; |
| 107 | |
| 108 | /* Enable PIO clocks */ |
| 109 | writel((1 << ATMEL_ID_PIOA) | |
| 110 | (1 << ATMEL_ID_PIOB) | |
| 111 | (1 << ATMEL_ID_PIOC), &pmc->pcer); |
| 112 | |
| 113 | /* The mach-type is the same for both Snapper 9260 and 9G20 */ |
| 114 | gd->bd->bi_arch_number = MACH_TYPE_SNAPPER_9260; |
| 115 | |
| 116 | /* Address of boot parameters */ |
| 117 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; |
| 118 | |
| 119 | /* Initialise peripherals */ |
| 120 | at91_seriald_hw_init(); |
Heiko Schocher | ea818db | 2013-01-29 08:53:15 +0100 | [diff] [blame] | 121 | i2c_set_bus_num(0); |
Ryan Mallon | b8d41dd | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 122 | nand_hw_init(); |
| 123 | macb_hw_init(); |
| 124 | |
| 125 | return 0; |
| 126 | } |
| 127 | |
| 128 | int board_eth_init(bd_t *bis) |
| 129 | { |
| 130 | return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x1f); |
| 131 | } |
| 132 | |
| 133 | int dram_init(void) |
| 134 | { |
| 135 | gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, |
| 136 | CONFIG_SYS_SDRAM_SIZE); |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | void reset_phy(void) |
| 141 | { |
| 142 | } |