Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 1 | /* |
| 2 | * bur_am335x_common.h |
| 3 | * |
| 4 | * common parts used by B&R AM335x based boards |
| 5 | * |
Hannes Schmelzer | 27bf441 | 2016-02-19 12:09:45 +0100 | [diff] [blame] | 6 | * Copyright (C) 2016 Hannes Schmelzer <oe5hpm@oevsv.at> - |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 7 | * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com |
| 8 | * |
| 9 | * SPDX-License-Identifier: GPL-2.0+ |
| 10 | */ |
| 11 | |
| 12 | #ifndef __BUR_AM335X_COMMON_H__ |
| 13 | #define __BUR_AM335X_COMMON_H__ |
| 14 | /* ------------------------------------------------------------------------- */ |
| 15 | #define CONFIG_AM33XX |
| 16 | #define CONFIG_OMAP |
| 17 | #define CONFIG_OMAP_COMMON |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 18 | #define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ |
| 19 | |
| 20 | /* Timer information */ |
| 21 | #define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ |
| 22 | #define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ |
Hannes Petermaier | 8924b94 | 2014-03-27 10:37:36 +0100 | [diff] [blame] | 23 | #define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 24 | #define CONFIG_POWER_TPS65217 |
| 25 | |
| 26 | #define CONFIG_SYS_NO_FLASH /* have no NOR-flash */ |
| 27 | |
| 28 | #include <asm/arch/omap.h> |
| 29 | |
| 30 | /* NS16550 Configuration */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 31 | #define CONFIG_SYS_NS16550_SERIAL |
| 32 | #define CONFIG_SYS_NS16550_REG_SIZE (-4) |
| 33 | #define CONFIG_SYS_NS16550_CLK 48000000 |
| 34 | #define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ |
| 35 | #define CONFIG_BAUDRATE 115200 |
| 36 | |
| 37 | /* Network defines */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 38 | #define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ |
| 39 | #define CONFIG_MII /* Required in net/eth.c */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 40 | #define CONFIG_PHYLIB |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 41 | #define CONFIG_PHY_NATSEMI |
Hannes Schmelzer | 27bf441 | 2016-02-19 12:09:45 +0100 | [diff] [blame] | 42 | |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 43 | /* |
| 44 | * SPL related defines. The Public RAM memory map the ROM defines the |
| 45 | * area between 0x402F0400 and 0x4030B800 as a download area and |
| 46 | * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also |
| 47 | * supports X-MODEM loading via UART, and we leverage this and then use |
Tom Rini | cfff4aa | 2016-08-26 13:30:43 -0400 | [diff] [blame] | 48 | * Y-MODEM to load u-boot.img, when booted over UART. We must also include |
| 49 | * the scratch space that U-Boot uses in SRAM. |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 50 | */ |
| 51 | #define CONFIG_SPL_TEXT_BASE 0x402F0400 |
Tom Rini | cfff4aa | 2016-08-26 13:30:43 -0400 | [diff] [blame] | 52 | #define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \ |
| 53 | CONFIG_SPL_TEXT_BASE) |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 54 | |
| 55 | /* |
| 56 | * Since SPL did pll and ddr initialization for us, |
| 57 | * we don't need to do it twice. |
| 58 | */ |
| 59 | #if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) |
| 60 | #define CONFIG_SKIP_LOWLEVEL_INIT |
| 61 | #endif /* !CONFIG_SPL_BUILD, ... */ |
| 62 | /* |
| 63 | * Our DDR memory always starts at 0x80000000 and U-Boot shall have |
| 64 | * relocated itself to higher in memory by the time this value is used. |
| 65 | */ |
| 66 | #define CONFIG_SYS_LOAD_ADDR 0x80000000 |
| 67 | /* |
| 68 | * ---------------------------------------------------------------------------- |
| 69 | * DDR information. We say (for simplicity) that we have 1 bank, |
| 70 | * always, even when we have more. We always start at 0x80000000, |
| 71 | * and we place the initial stack pointer in our SRAM. |
| 72 | */ |
| 73 | #define CONFIG_NR_DRAM_BANKS 1 |
| 74 | #define CONFIG_SYS_SDRAM_BASE 0x80000000 |
| 75 | #define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ |
| 76 | GENERATED_GBL_DATA_SIZE) |
| 77 | |
| 78 | /* I2C */ |
| 79 | #define CONFIG_SYS_I2C |
| 80 | #define CONFIG_SYS_OMAP24_I2C_SPEED 100000 |
| 81 | #define CONFIG_SYS_OMAP24_I2C_SLAVE 1 |
| 82 | #define CONFIG_SYS_I2C_OMAP24XX |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 83 | /* GPIO */ |
| 84 | #define CONFIG_OMAP_GPIO |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 85 | |
| 86 | /* |
| 87 | * Our platforms make use of SPL to initalize the hardware (primarily |
| 88 | * memory) enough for full U-Boot to be loaded. We also support Falcon |
| 89 | * Mode so that the Linux kernel can be booted directly from SPL |
| 90 | * instead, if desired. We make use of the general SPL framework found |
| 91 | * under common/spl/. Given our generally common memory map, we set a |
| 92 | * number of related defaults and sizes here. |
| 93 | */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 94 | #define CONFIG_SPL_FRAMEWORK |
| 95 | /* |
| 96 | * Place the image at the start of the ROM defined image space. |
| 97 | * We limit our size to the ROM-defined downloaded image area, and use the |
| 98 | * rest of the space for stack. We load U-Boot itself into memory at |
| 99 | * 0x80800000 for legacy reasons (to not conflict with older SPLs). We |
| 100 | * have our BSS be placed 1MiB after this, to allow for the default |
| 101 | * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. |
| 102 | * We have the SPL malloc pool at the end of the BSS area. |
| 103 | * |
| 104 | * ---------------------------------------------------------------------------- |
| 105 | */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 106 | #undef CONFIG_SYS_TEXT_BASE |
| 107 | #define CONFIG_SYS_TEXT_BASE 0x80800000 |
| 108 | #define CONFIG_SPL_BSS_START_ADDR 0x80A00000 |
| 109 | #define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ |
| 110 | #define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ |
| 111 | CONFIG_SPL_BSS_MAX_SIZE) |
| 112 | #define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN |
| 113 | |
| 114 | /* General parts of the framework, required. */ |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 115 | #define CONFIG_SPL_BOARD_INIT |
Hannes Petermaier | fb00366 | 2014-02-07 08:07:36 +0100 | [diff] [blame] | 116 | #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" |
| 117 | |
| 118 | #endif /* ! __BUR_AM335X_COMMON_H__ */ |