diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc512x/fixed_sdram.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc512x/fixed_sdram.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/arch/powerpc/cpu/mpc512x/fixed_sdram.c b/arch/powerpc/cpu/mpc512x/fixed_sdram.c deleted file mode 100644 index 68c5f8a..0000000 --- a/arch/powerpc/cpu/mpc512x/fixed_sdram.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * (C) Copyright 2007-2009 DENX Software Engineering - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/mpc512x.h> - -/* - * MDDRC Config Runtime Settings - */ -ddr512x_config_t default_mddrc_config = { - .ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG, - .ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0, - .ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1, - .ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2, -}; - -u32 default_init_seq[] = { - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_PCHG_ALL, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_RFSH, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_RFSH, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_MICRON_INIT_DEV_OP, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_EM2, - CONFIG_SYS_DDRCMD_NOP, - CONFIG_SYS_DDRCMD_PCHG_ALL, - CONFIG_SYS_DDRCMD_EM2, - CONFIG_SYS_DDRCMD_EM3, - CONFIG_SYS_DDRCMD_EN_DLL, - CONFIG_SYS_MICRON_INIT_DEV_OP, - CONFIG_SYS_DDRCMD_PCHG_ALL, - CONFIG_SYS_DDRCMD_RFSH, - CONFIG_SYS_MICRON_INIT_DEV_OP, - CONFIG_SYS_DDRCMD_OCD_DEFAULT, - CONFIG_SYS_DDRCMD_PCHG_ALL, - CONFIG_SYS_DDRCMD_NOP -}; - -/* - * fixed sdram init: - * The board doesn't use memory modules that have serial presence - * detect or similar mechanism for discovery of the DRAM settings - */ -long int fixed_sdram(ddr512x_config_t *mddrc_config, - u32 *dram_init_seq, int seq_sz) -{ - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - u32 msize = CONFIG_SYS_MAX_RAM_SIZE; - u32 msize_log2 = __ilog2(msize); - u32 i; - - /* take default settings and init sequence if necessary */ - if (mddrc_config == NULL) - mddrc_config = &default_mddrc_config; - if (dram_init_seq == NULL) { - dram_init_seq = default_init_seq; - seq_sz = ARRAY_SIZE(default_init_seq); - } - - /* Initialize IO Control */ - out_be32(&im->io_ctrl.io_control_mem, CONFIG_SYS_IOCTRL_MUX_DDR); - - /* Initialize DDR Local Window */ - out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000); - out_be32(&im->sysconf.ddrlaw.ar, msize_log2 - 1); - sync_law(&im->sysconf.ddrlaw.ar); - - /* DDR Enable */ - /* - * the "enable" combination: DRAM controller out of reset, - * clock enabled, command mode -- BUT leave CKE low for now - */ - i = MDDRC_SYS_CFG_EN & ~MDDRC_SYS_CFG_CKE_MASK; - out_be32(&im->mddrc.ddr_sys_config, i); - /* maintain 200 microseconds of stable power and clock */ - udelay(200); - /* apply a NOP, it shouldn't harm */ - out_be32(&im->mddrc.ddr_command, CONFIG_SYS_DDRCMD_NOP); - /* now assert CKE (high) */ - i |= MDDRC_SYS_CFG_CKE_MASK; - out_be32(&im->mddrc.ddr_sys_config, i); - - /* Initialize DDR Priority Manager */ - out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1); - out_be32(&im->mddrc.prioman_config2, CONFIG_SYS_MDDRCGRP_PM_CFG2); - out_be32(&im->mddrc.hiprio_config, CONFIG_SYS_MDDRCGRP_HIPRIO_CFG); - out_be32(&im->mddrc.lut_table0_main_upper, CONFIG_SYS_MDDRCGRP_LUT0_MU); - out_be32(&im->mddrc.lut_table0_main_lower, CONFIG_SYS_MDDRCGRP_LUT0_ML); - out_be32(&im->mddrc.lut_table1_main_upper, CONFIG_SYS_MDDRCGRP_LUT1_MU); - out_be32(&im->mddrc.lut_table1_main_lower, CONFIG_SYS_MDDRCGRP_LUT1_ML); - out_be32(&im->mddrc.lut_table2_main_upper, CONFIG_SYS_MDDRCGRP_LUT2_MU); - out_be32(&im->mddrc.lut_table2_main_lower, CONFIG_SYS_MDDRCGRP_LUT2_ML); - out_be32(&im->mddrc.lut_table3_main_upper, CONFIG_SYS_MDDRCGRP_LUT3_MU); - out_be32(&im->mddrc.lut_table3_main_lower, CONFIG_SYS_MDDRCGRP_LUT3_ML); - out_be32(&im->mddrc.lut_table4_main_upper, CONFIG_SYS_MDDRCGRP_LUT4_MU); - out_be32(&im->mddrc.lut_table4_main_lower, CONFIG_SYS_MDDRCGRP_LUT4_ML); - out_be32(&im->mddrc.lut_table0_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT0_AU); - out_be32(&im->mddrc.lut_table0_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT0_AL); - out_be32(&im->mddrc.lut_table1_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT1_AU); - out_be32(&im->mddrc.lut_table1_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT1_AL); - out_be32(&im->mddrc.lut_table2_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT2_AU); - out_be32(&im->mddrc.lut_table2_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT2_AL); - out_be32(&im->mddrc.lut_table3_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT3_AU); - out_be32(&im->mddrc.lut_table3_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT3_AL); - out_be32(&im->mddrc.lut_table4_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT4_AU); - out_be32(&im->mddrc.lut_table4_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT4_AL); - - /* - * Initialize MDDRC - * put MDDRC in CMD mode and - * set the max time between refreshes to 0 during init process - */ - out_be32(&im->mddrc.ddr_sys_config, - mddrc_config->ddr_sys_config | MDDRC_SYS_CFG_CMD_MASK); - out_be32(&im->mddrc.ddr_time_config0, - mddrc_config->ddr_time_config0 & MDDRC_REFRESH_ZERO_MASK); - out_be32(&im->mddrc.ddr_time_config1, - mddrc_config->ddr_time_config1); - out_be32(&im->mddrc.ddr_time_config2, - mddrc_config->ddr_time_config2); - - /* Initialize DDR with either default or supplied init sequence */ - for (i = 0; i < seq_sz; i++) - out_be32(&im->mddrc.ddr_command, dram_init_seq[i]); - - /* Start MDDRC */ - out_be32(&im->mddrc.ddr_time_config0, mddrc_config->ddr_time_config0); - out_be32(&im->mddrc.ddr_sys_config, mddrc_config->ddr_sys_config); - - /* Allow for the DLL to startup before accessing data */ - udelay(10); - - msize = get_ram_size(CONFIG_SYS_DDR_BASE, CONFIG_SYS_MAX_RAM_SIZE); - /* Fix DDR Local Window for new size */ - out_be32(&im->sysconf.ddrlaw.ar, __ilog2(msize) - 1); - sync_law(&im->sysconf.ddrlaw.ar); - - return msize; -} |