diff options
Diffstat (limited to 'qemu/roms/u-boot/board/in-circuit')
| -rw-r--r-- | qemu/roms/u-boot/board/in-circuit/grasshopper/Makefile | 10 | ||||
| -rw-r--r-- | qemu/roms/u-boot/board/in-circuit/grasshopper/grasshopper.c | 103 |
2 files changed, 113 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/in-circuit/grasshopper/Makefile b/qemu/roms/u-boot/board/in-circuit/grasshopper/Makefile new file mode 100644 index 000000000..04576358f --- /dev/null +++ b/qemu/roms/u-boot/board/in-circuit/grasshopper/Makefile @@ -0,0 +1,10 @@ +# +# (C) Copyright 2001-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright (C) 2011 +# Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de> +# +# SPDX-License-Identifier: GPL-2.0+ + +obj-y += grasshopper.o diff --git a/qemu/roms/u-boot/board/in-circuit/grasshopper/grasshopper.c b/qemu/roms/u-boot/board/in-circuit/grasshopper/grasshopper.c new file mode 100644 index 000000000..340b71318 --- /dev/null +++ b/qemu/roms/u-boot/board/in-circuit/grasshopper/grasshopper.c @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2011 + * Corscience GmbH & Co.KG, Andreas Bießmann <biessmann@corscience.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> + +#include <asm/io.h> +#include <asm/sdram.h> +#include <asm/arch/clk.h> +#include <asm/arch/hmatrix.h> +#include <asm/arch/mmu.h> +#include <asm/arch/portmux.h> +#include <netdev.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = { + { + .virt_pgno = CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT, + .nr_pages = CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT, + .phys = (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT) + | MMU_VMR_CACHE_NONE, + }, { + .virt_pgno = CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT, + .nr_pages = EBI_SDRAM_SIZE >> PAGE_SHIFT, + .phys = (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT) + | MMU_VMR_CACHE_WRBACK, + }, +}; + +static const struct sdram_config sdram_config = { + /* Dual MT48LC16M16A2-7E (or equal) */ + .data_bits = SDRAM_DATA_32BIT, + .row_bits = 13, + .col_bits = 9, + .bank_bits = 2, + .cas = 2, + .twr = 2, + .trc = 7, + .trp = 2, + .trcd = 2, + .tras = 4, + .txsr = 7, + /* 7.81 us */ + .refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000, +}; + +int board_early_init_f(void) +{ + /* Enable SDRAM in the EBI mux */ + hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE)); + + portmux_enable_ebi(SDRAM_DATA_32BIT, 23, 0, PORTMUX_DRIVE_HIGH); + portmux_enable_usart0(PORTMUX_DRIVE_MIN); + portmux_enable_usart1(PORTMUX_DRIVE_MIN); +#if defined(CONFIG_MACB) + /* set PHY reset and pwrdown to low */ + portmux_select_gpio(PORTMUX_PORT_B, (1 << 29) | (1 << 30), + PORTMUX_DIR_OUTPUT | PORTMUX_INIT_LOW); + udelay(100); + /* release PHYs reset */ + gpio_set_value(GPIO_PIN_PB(29), 1); + + portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW); +#endif + + return 0; +} + +phys_size_t initdram(int board_type) +{ + unsigned long expected_size; + unsigned long actual_size; + void *sdram_base; + + sdram_base = uncached(EBI_SDRAM_BASE); + + expected_size = sdram_init(sdram_base, &sdram_config); + actual_size = get_ram_size(sdram_base, expected_size); + + if (expected_size != actual_size) + printf("Warning: Only %lu of %lu MiB SDRAM is working\n", + actual_size >> 20, expected_size >> 20); + + return actual_size; +} + +int board_early_init_r(void) +{ + gd->bd->bi_phy_id[0] = 0x00; + return 0; +} + +#ifdef CONFIG_CMD_NET +int board_eth_init(bd_t *bi) +{ + macb_eth_initialize(0, (void *)ATMEL_BASE_MACB0, bi->bi_phy_id[0]); + return 0; +} +#endif +/* vim: set noet ts=8: */ |