Ryan Mallon | 50515fa | 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 | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 8 | * SPDX-License-Identifier: GPL-2.0+ |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | #include <common.h> |
Simon Glass | 6d20e07 | 2014-10-29 13:09:01 -0600 | [diff] [blame] | 12 | #include <dm.h> |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 13 | #include <asm/io.h> |
Simon Glass | 6d20e07 | 2014-10-29 13:09:01 -0600 | [diff] [blame] | 14 | #include <asm/gpio.h> |
Simon Glass | 0ffb9d6 | 2017-05-31 19:47:48 -0600 | [diff] [blame] | 15 | #include <asm/mach-types.h> |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 16 | #include <asm/arch/at91sam9260_matrix.h> |
| 17 | #include <asm/arch/at91sam9_smc.h> |
| 18 | #include <asm/arch/at91_common.h> |
Wenyou Yang | 78f8976 | 2016-02-03 10:16:50 +0800 | [diff] [blame] | 19 | #include <asm/arch/clk.h> |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 20 | #include <asm/arch/gpio.h> |
Simon Glass | 6d20e07 | 2014-10-29 13:09:01 -0600 | [diff] [blame] | 21 | #include <asm/arch/atmel_serial.h> |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 22 | #include <net.h> |
| 23 | #include <netdev.h> |
| 24 | #include <i2c.h> |
| 25 | #include <pca953x.h> |
| 26 | |
| 27 | DECLARE_GLOBAL_DATA_PTR; |
| 28 | |
| 29 | /* IO Expander pins */ |
| 30 | #define IO_EXP_ETH_RESET (0 << 1) |
| 31 | #define IO_EXP_ETH_POWER (1 << 1) |
| 32 | |
| 33 | static void macb_hw_init(void) |
| 34 | { |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 35 | struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 36 | |
Wenyou Yang | 78f8976 | 2016-02-03 10:16:50 +0800 | [diff] [blame] | 37 | at91_periph_clk_enable(ATMEL_ID_EMAC0); |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 38 | |
| 39 | /* Disable pull-ups to prevent PHY going into test mode */ |
| 40 | writel(pin_to_mask(AT91_PIN_PA14) | |
| 41 | pin_to_mask(AT91_PIN_PA15) | |
| 42 | pin_to_mask(AT91_PIN_PA18), |
| 43 | &pioa->pudr); |
| 44 | |
| 45 | /* Power down ethernet */ |
| 46 | pca953x_set_dir(0x28, IO_EXP_ETH_POWER, PCA953X_DIR_OUT); |
| 47 | pca953x_set_val(0x28, IO_EXP_ETH_POWER, 1); |
| 48 | |
| 49 | /* Hold ethernet in reset */ |
| 50 | pca953x_set_dir(0x28, IO_EXP_ETH_RESET, PCA953X_DIR_OUT); |
| 51 | pca953x_set_val(0x28, IO_EXP_ETH_RESET, 0); |
| 52 | |
| 53 | /* Enable ethernet power */ |
| 54 | pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0); |
| 55 | |
Heiko Schocher | 8a84ae1 | 2013-11-18 08:07:23 +0100 | [diff] [blame] | 56 | at91_phy_reset(); |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 57 | |
| 58 | /* Bring the ethernet out of reset */ |
| 59 | pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1); |
| 60 | |
| 61 | /* The phy internal reset take 21ms */ |
| 62 | udelay(21 * 1000); |
| 63 | |
| 64 | /* Re-enable pull-up */ |
| 65 | writel(pin_to_mask(AT91_PIN_PA14) | |
| 66 | pin_to_mask(AT91_PIN_PA15) | |
| 67 | pin_to_mask(AT91_PIN_PA18), |
| 68 | &pioa->puer); |
| 69 | |
| 70 | at91_macb_hw_init(); |
| 71 | } |
| 72 | |
| 73 | static void nand_hw_init(void) |
| 74 | { |
| 75 | struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; |
| 76 | struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; |
| 77 | unsigned long csa; |
| 78 | |
| 79 | /* Enable CS3 as NAND/SmartMedia */ |
| 80 | csa = readl(&matrix->ebicsa); |
| 81 | csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; |
| 82 | writel(csa, &matrix->ebicsa); |
| 83 | |
| 84 | /* Configure SMC CS3 for NAND/SmartMedia */ |
| 85 | writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) | |
| 86 | AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0), |
| 87 | &smc->cs[3].setup); |
| 88 | writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) | |
| 89 | AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4), |
| 90 | &smc->cs[3].pulse); |
| 91 | writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7), |
| 92 | &smc->cs[3].cycle); |
| 93 | writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | |
| 94 | AT91_SMC_MODE_EXNW_DISABLE | |
| 95 | AT91_SMC_MODE_DBW_8 | |
| 96 | AT91_SMC_MODE_TDF_CYCLE(3), |
| 97 | &smc->cs[3].mode); |
| 98 | |
| 99 | /* Configure RDY/BSY */ |
Simon Glass | 6d20e07 | 2014-10-29 13:09:01 -0600 | [diff] [blame] | 100 | gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand_rdy"); |
| 101 | gpio_direction_input(CONFIG_SYS_NAND_READY_PIN); |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 102 | |
| 103 | /* Enable NandFlash */ |
Simon Glass | 6d20e07 | 2014-10-29 13:09:01 -0600 | [diff] [blame] | 104 | gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand_ce"); |
| 105 | gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | int board_init(void) |
| 109 | { |
Wenyou Yang | 78f8976 | 2016-02-03 10:16:50 +0800 | [diff] [blame] | 110 | at91_periph_clk_enable(ATMEL_ID_PIOA); |
| 111 | at91_periph_clk_enable(ATMEL_ID_PIOB); |
| 112 | at91_periph_clk_enable(ATMEL_ID_PIOC); |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 113 | |
| 114 | /* The mach-type is the same for both Snapper 9260 and 9G20 */ |
| 115 | gd->bd->bi_arch_number = MACH_TYPE_SNAPPER_9260; |
| 116 | |
| 117 | /* Address of boot parameters */ |
| 118 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; |
| 119 | |
| 120 | /* Initialise peripherals */ |
| 121 | at91_seriald_hw_init(); |
Heiko Schocher | 479a4cf | 2013-01-29 08:53:15 +0100 | [diff] [blame] | 122 | i2c_set_bus_num(0); |
Ryan Mallon | 50515fa | 2011-06-05 07:21:22 +0000 | [diff] [blame] | 123 | nand_hw_init(); |
| 124 | macb_hw_init(); |
| 125 | |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | int board_eth_init(bd_t *bis) |
| 130 | { |
| 131 | return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x1f); |
| 132 | } |
| 133 | |
| 134 | int dram_init(void) |
| 135 | { |
| 136 | gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, |
| 137 | CONFIG_SYS_SDRAM_SIZE); |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | void reset_phy(void) |
| 142 | { |
| 143 | } |
Simon Glass | 6d20e07 | 2014-10-29 13:09:01 -0600 | [diff] [blame] | 144 | |
| 145 | static struct atmel_serial_platdata at91sam9260_serial_plat = { |
| 146 | .base_addr = ATMEL_BASE_DBGU, |
| 147 | }; |
| 148 | |
| 149 | U_BOOT_DEVICE(at91sam9260_serial) = { |
| 150 | .name = "serial_atmel", |
| 151 | .platdata = &at91sam9260_serial_plat, |
| 152 | }; |