/*
- * Copyright 2009 Freescale Semiconductor, Inc.
+ * Copyright 2009, 2011 Freescale Semiconductor, Inc.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
DECLARE_GLOBAL_DATA_PTR;
-extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
- unsigned int ctrl_num);
-
-#define DATARATE_400MHZ 400000000
-#define DATARATE_533MHZ 533333333
-#define DATARATE_667MHZ 666666666
-#define DATARATE_800MHZ 800000000
-
#define CONFIG_SYS_DDR_CS0_BNDS 0x0000003F
#define CONFIG_SYS_DDR_CS0_CONFIG 0x80014202
#define CONFIG_SYS_DDR_CS0_CONFIG_2 0x00000000
#define CONFIG_SYS_DDR_INTERVAL_667 0x0a280100
#define CONFIG_SYS_DDR_TIMING_3_800 0x00040000
-#define CONFIG_SYS_DDR_TIMING_0_800 0x55770802
+#define CONFIG_SYS_DDR_TIMING_0_800 0x00770802
#define CONFIG_SYS_DDR_TIMING_1_800 0x6f6b6543
#define CONFIG_SYS_DDR_TIMING_2_800 0x0fa074d1
#define CONFIG_SYS_DDR_CLK_CTRL_800 0x02800000
#define CONFIG_SYS_DDR_MODE_1_800 0x00040852
#define CONFIG_SYS_DDR_MODE_2_800 0x00000000
-#define CONFIG_SYS_DDR_INTERVAL_800 0x0a280100
+#define CONFIG_SYS_DDR_INTERVAL_800 0x0c300100
fsl_ddr_cfg_regs_t ddr_cfg_regs_400 = {
.cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
phys_size_t fixed_sdram (void)
{
- sys_info_t sysinfo;
char buf[32];
fsl_ddr_cfg_regs_t ddr_cfg_regs;
size_t ddr_size;
struct cpu_type *cpu;
+ ulong ddr_freq, ddr_freq_mhz;
+
+ cpu = gd->arch.cpu;
+ /* P1020 and it's derivatives support max 32bit DDR width */
+ if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1011) {
+ ddr_size = (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024 / 2);
+ } else {
+ ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+ }
+#if defined(CONFIG_SYS_RAMBOOT)
+ return ddr_size;
+#endif
+ ddr_freq = get_ddr_freq(0);
+ ddr_freq_mhz = ddr_freq / 1000000;
- get_sys_info(&sysinfo);
printf("Configuring DDR for %s MT/s data rate\n",
- strmhz(buf, sysinfo.freqDDRBus));
+ strmhz(buf, ddr_freq));
- if(sysinfo.freqDDRBus <= DATARATE_400MHZ)
+ if(ddr_freq_mhz <= 400)
memcpy(&ddr_cfg_regs, &ddr_cfg_regs_400, sizeof(ddr_cfg_regs));
- else if(sysinfo.freqDDRBus <= DATARATE_533MHZ)
+ else if(ddr_freq_mhz <= 533)
memcpy(&ddr_cfg_regs, &ddr_cfg_regs_533, sizeof(ddr_cfg_regs));
- else if(sysinfo.freqDDRBus <= DATARATE_667MHZ)
+ else if(ddr_freq_mhz <= 667)
memcpy(&ddr_cfg_regs, &ddr_cfg_regs_667, sizeof(ddr_cfg_regs));
- else if(sysinfo.freqDDRBus <= DATARATE_800MHZ)
+ else if(ddr_freq_mhz <= 800)
memcpy(&ddr_cfg_regs, &ddr_cfg_regs_800, sizeof(ddr_cfg_regs));
else
panic("Unsupported DDR data rate %s MT/s data rate\n",
- strmhz(buf, sysinfo.freqDDRBus));
+ strmhz(buf, ddr_freq));
- cpu = gd->cpu;
/* P1020 and it's derivatives support max 32bit DDR width */
- if(cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1020_E ||
- cpu->soc_ver == SVR_P1011 || cpu->soc_ver == SVR_P1011_E) {
+ if (cpu->soc_ver == SVR_P1020 || cpu->soc_ver == SVR_P1011) {
ddr_cfg_regs.ddr_sdram_cfg |= SDRAM_CFG_32_BE;
ddr_cfg_regs.cs[0].bnds = 0x0000001F;
- ddr_size = (CONFIG_SYS_SDRAM_SIZE * 1024 * 1024 / 2);
}
- else
- ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
- fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0);
+ fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0);
+ set_ddr_laws(0, ddr_size, LAW_TRGT_IF_DDR_1);
return ddr_size;
}
-
-phys_size_t initdram(int board_type)
-{
- phys_size_t dram_size = 0;
-
- dram_size = fixed_sdram();
- set_ddr_laws(0, dram_size, LAW_TRGT_IF_DDR_1);
-
- dram_size = setup_ddr_tlbs(dram_size / 0x100000);
- dram_size *= 0x100000;
-
- puts("DDR: ");
- return dram_size;
-}