/*
- * Copyright 2008-2012 Freescale Semiconductor, Inc.
+ * Copyright 2008-2014 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
*/
#include <common.h>
+#ifdef CONFIG_PPC
#include <asm/fsl_law.h>
+#endif
#include <div64.h>
#include <fsl_ddr.h>
#define ULL_8FS 0xFFFFFFFFULL
+u32 fsl_ddr_get_version(unsigned int ctrl_num)
+{
+ struct ccsr_ddr __iomem *ddr;
+ u32 ver_major_minor_errata;
+
+ switch (ctrl_num) {
+ case 0:
+ ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
+ break;
+#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1)
+ case 1:
+ ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
+ break;
+#endif
+#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2)
+ case 2:
+ ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
+ break;
+#endif
+#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3)
+ case 3:
+ ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
+ break;
+#endif
+ default:
+ printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num);
+ return 0;
+ }
+ ver_major_minor_errata = (ddr_in32(&ddr->ip_rev1) & 0xFFFF) << 8;
+ ver_major_minor_errata |= (ddr_in32(&ddr->ip_rev2) & 0xFF00) >> 8;
+
+ return ver_major_minor_errata;
+}
+
/*
* Round up mclk_ps to nearest 1 ps in memory controller code
* if the error is 0.5ps or more.
* propagation, compute a suitably rounded mclk_ps to compute
* a working memory controller configuration.
*/
-unsigned int get_memory_clk_period_ps(void)
+unsigned int get_memory_clk_period_ps(const unsigned int ctrl_num)
{
- unsigned int data_rate = get_ddr_freq(0);
+ unsigned int data_rate = get_ddr_freq(ctrl_num);
unsigned int result;
/* Round to nearest 10ps, being careful about 64-bit multiply/divide */
}
/* Convert picoseconds into DRAM clock cycles (rounding up if needed). */
-unsigned int picos_to_mclk(unsigned int picos)
+unsigned int picos_to_mclk(const unsigned int ctrl_num, unsigned int picos)
{
unsigned long long clks, clks_rem;
- unsigned long data_rate = get_ddr_freq(0);
+ unsigned long data_rate = get_ddr_freq(ctrl_num);
/* Short circuit for zero picos */
if (!picos)
return (unsigned int) clks;
}
-unsigned int mclk_to_picos(unsigned int mclk)
+unsigned int mclk_to_picos(const unsigned int ctrl_num, unsigned int mclk)
{
- return get_memory_clk_period_ps() * mclk;
+ return get_memory_clk_period_ps(ctrl_num) * mclk;
}
+#ifdef CONFIG_PPC
void
__fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params,
unsigned int law_memctl,
fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params,
unsigned int memctl_interleaved,
unsigned int ctrl_num);
+#endif
void fsl_ddr_set_intl3r(const unsigned int granule_size)
{
return val;
}
-void board_add_ram_info(int use_default)
+void print_ddr_info(unsigned int start_ctrl)
{
struct ccsr_ddr __iomem *ddr =
(struct ccsr_ddr __iomem *)(CONFIG_SYS_FSL_DDR_ADDR);
u32 *mcintl3r = (void *) (CONFIG_SYS_IMMR + 0x18004);
#endif
#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
- uint32_t cs0_config = in_be32(&ddr->cs0_config);
+ uint32_t cs0_config = ddr_in32(&ddr->cs0_config);
#endif
- uint32_t sdram_cfg = in_be32(&ddr->sdram_cfg);
+ uint32_t sdram_cfg = ddr_in32(&ddr->sdram_cfg);
int cas_lat;
#if CONFIG_NUM_DDR_CONTROLLERS >= 2
- if (!(sdram_cfg & SDRAM_CFG_MEM_EN)) {
+ if ((!(sdram_cfg & SDRAM_CFG_MEM_EN)) ||
+ (start_ctrl == 1)) {
ddr = (void __iomem *)CONFIG_SYS_FSL_DDR2_ADDR;
- sdram_cfg = in_be32(&ddr->sdram_cfg);
+ sdram_cfg = ddr_in32(&ddr->sdram_cfg);
}
#endif
#if CONFIG_NUM_DDR_CONTROLLERS >= 3
- if (!(sdram_cfg & SDRAM_CFG_MEM_EN)) {
+ if ((!(sdram_cfg & SDRAM_CFG_MEM_EN)) ||
+ (start_ctrl == 2)) {
ddr = (void __iomem *)CONFIG_SYS_FSL_DDR3_ADDR;
- sdram_cfg = in_be32(&ddr->sdram_cfg);
+ sdram_cfg = ddr_in32(&ddr->sdram_cfg);
}
#endif
+
+ if (!(sdram_cfg & SDRAM_CFG_MEM_EN)) {
+ puts(" (DDR not enabled)\n");
+ return;
+ }
+
puts(" (DDR");
switch ((sdram_cfg & SDRAM_CFG_SDRAM_TYPE_MASK) >>
SDRAM_CFG_SDRAM_TYPE_SHIFT) {
case SDRAM_TYPE_DDR3:
puts("3");
break;
+ case SDRAM_TYPE_DDR4:
+ puts("4");
+ break;
default:
puts("?");
break;
puts(", 64-bit");
/* Calculate CAS latency based on timing cfg values */
- cas_lat = ((in_be32(&ddr->timing_cfg_1) >> 16) & 0xf) + 1;
- if ((in_be32(&ddr->timing_cfg_3) >> 12) & 1)
- cas_lat += (8 << 1);
+ cas_lat = ((ddr_in32(&ddr->timing_cfg_1) >> 16) & 0xf);
+ if (fsl_ddr_get_version(0) <= 0x40400)
+ cas_lat += 1;
+ else
+ cas_lat += 2;
+ cas_lat += ((ddr_in32(&ddr->timing_cfg_3) >> 12) & 3) << 4;
printf(", CL=%d", cas_lat >> 1);
if (cas_lat & 0x1)
puts(".5");
#endif
#endif
#if (CONFIG_NUM_DDR_CONTROLLERS >= 2)
- if (cs0_config & 0x20000000) {
+ if ((cs0_config & 0x20000000) && (start_ctrl == 0)) {
puts("\n");
puts(" DDR Controller Interleaving Mode: ");
switch ((cs0_config >> 24) & 0xf) {
+ case FSL_DDR_256B_INTERLEAVING:
+ puts("256B");
+ break;
case FSL_DDR_CACHE_LINE_INTERLEAVING:
puts("cache line");
break;
}
}
}
+
+void __weak detail_board_ddr_info(void)
+{
+ print_ddr_info(0);
+}
+
+void board_add_ram_info(int use_default)
+{
+ detail_board_ddr_info();
+}
+
+#ifdef CONFIG_FSL_DDR_SYNC_REFRESH
+#define DDRC_DEBUG20_INIT_DONE 0x80000000
+#define DDRC_DEBUG2_RF 0x00000040
+void fsl_ddr_sync_memctl_refresh(unsigned int first_ctrl,
+ unsigned int last_ctrl)
+{
+ unsigned int i;
+ u32 ddrc_debug20;
+ u32 ddrc_debug2[CONFIG_NUM_DDR_CONTROLLERS] = {};
+ u32 *ddrc_debug2_p[CONFIG_NUM_DDR_CONTROLLERS] = {};
+ struct ccsr_ddr __iomem *ddr;
+
+ for (i = first_ctrl; i <= last_ctrl; i++) {
+ switch (i) {
+ case 0:
+ ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
+ break;
+#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1)
+ case 1:
+ ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
+ break;
+#endif
+#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2)
+ case 2:
+ ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
+ break;
+#endif
+#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3)
+ case 3:
+ ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
+ break;
+#endif
+ default:
+ printf("%s unexpected ctrl = %u\n", __func__, i);
+ return;
+ }
+ ddrc_debug20 = ddr_in32(&ddr->debug[19]);
+ ddrc_debug2_p[i] = &ddr->debug[1];
+ while (!(ddrc_debug20 & DDRC_DEBUG20_INIT_DONE)) {
+ /* keep polling until DDRC init is done */
+ udelay(100);
+ ddrc_debug20 = ddr_in32(&ddr->debug[19]);
+ }
+ ddrc_debug2[i] = ddr_in32(&ddr->debug[1]) | DDRC_DEBUG2_RF;
+ }
+ /*
+ * Sync refresh
+ * This is put together to make sure the refresh reqeusts are sent
+ * closely to each other.
+ */
+ for (i = first_ctrl; i <= last_ctrl; i++)
+ ddr_out32(ddrc_debug2_p[i], ddrc_debug2[i]);
+}
+#endif /* CONFIG_FSL_DDR_SYNC_REFRESH */