diff options
Diffstat (limited to 'qemu/roms/u-boot/board/mpc8308_p1m/sdram.c')
-rw-r--r-- | qemu/roms/u-boot/board/mpc8308_p1m/sdram.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/qemu/roms/u-boot/board/mpc8308_p1m/sdram.c b/qemu/roms/u-boot/board/mpc8308_p1m/sdram.c deleted file mode 100644 index da36f63fd..000000000 --- a/qemu/roms/u-boot/board/mpc8308_p1m/sdram.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright (C) 2007 Freescale Semiconductor, Inc. - * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com - * - * This files is mostly identical to the original from - * board/freescale/mpc8308rdb/sdram.c - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <mpc83xx.h> - -#include <asm/bitops.h> -#include <asm/io.h> - -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* Fixed sdram init -- doesn't use serial presence detect. - * - * This is useful for faster booting in configs where the RAM is unlikely - * to be changed, or for things like NAND booting where space is tight. - */ -static long fixed_sdram(void) -{ - immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - u32 msize = CONFIG_SYS_DDR_SIZE * 1024 * 1024; - u32 msize_log2 = __ilog2(msize); - - out_be32(&im->sysconf.ddrlaw[0].bar, - CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000); - out_be32(&im->sysconf.ddrlaw[0].ar, LBLAWAR_EN | (msize_log2 - 1)); - out_be32(&im->sysconf.ddrcdr, CONFIG_SYS_DDRCDR_VALUE); - - out_be32(&im->ddr.csbnds[0].csbnds, (msize - 1) >> 24); - out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CS0_CONFIG); - - /* Currently we use only one CS, so disable the other bank. */ - out_be32(&im->ddr.cs_config[1], 0); - - out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_SDRAM_CLK_CNTL); - out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3); - out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1); - out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2); - out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0); - - out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_DDR_SDRAM_CFG); - out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_DDR_SDRAM_CFG2); - out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE); - out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE2); - - out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL); - sync(); - - /* enable DDR controller */ - setbits_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN); - sync(); - - return get_ram_size(CONFIG_SYS_DDR_SDRAM_BASE, msize); -} - -phys_size_t initdram(int board_type) -{ - immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - u32 msize; - - if ((in_be32(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32)im) - return -1; - - /* DDR SDRAM */ - msize = fixed_sdram(); - - /* return total bus SDRAM size(bytes) -- DDR */ - return msize; -} |