[U-Boot] [PATCH 06/10 V5] Exynos5: DDR3: Add DDR3 memory setup for Exynos5250 Rev 1.0
Rajeshwari Shinde
rajeshwari.s at samsung.com
Mon Jul 2 13:36:41 CEST 2012
The patch adds the memory initialization sequence of DDR3.
Signed-off-by: Hatim Ali <hatim.rv at samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s at samsung.com>
---
Changes in V2:
- None.
Chnages in V3:
- None.
Changes in V4:
- None
Changes in V5:
- None.
arch/arm/include/asm/arch-exynos/dmc.h | 65 +++++
board/samsung/smdk5250/Makefile | 2 +-
board/samsung/smdk5250/dmc_common.c | 199 ++++++++++++++
board/samsung/smdk5250/dmc_init.c | 462 --------------------------------
board/samsung/smdk5250/dmc_init_ddr3.c | 228 ++++++++++++++++
board/samsung/smdk5250/setup.h | 59 ++++-
6 files changed, 551 insertions(+), 464 deletions(-)
create mode 100644 board/samsung/smdk5250/dmc_common.c
delete mode 100644 board/samsung/smdk5250/dmc_init.c
create mode 100644 board/samsung/smdk5250/dmc_init_ddr3.c
diff --git a/arch/arm/include/asm/arch-exynos/dmc.h b/arch/arm/include/asm/arch-exynos/dmc.h
index bd52d16..f65c676 100644
--- a/arch/arm/include/asm/arch-exynos/dmc.h
+++ b/arch/arm/include/asm/arch-exynos/dmc.h
@@ -251,5 +251,70 @@ struct exynos5_phy_control {
unsigned int phy_con41;
unsigned int phy_con42;
};
+
+enum ddr_mode {
+ DDR_MODE_DDR2,
+ DDR_MODE_DDR3,
+ DDR_MODE_LPDDR2,
+ DDR_MODE_LPDDR3,
+
+ DDR_MODE_COUNT,
+};
+
+enum mem_manuf {
+ MEM_MANUF_AUTODETECT,
+ MEM_MANUF_ELPIDA,
+ MEM_MANUF_SAMSUNG,
+
+ MEM_MANUF_COUNT,
+};
+
+/* CONCONTROL register fields */
+#define CONCONTROL_DFI_INIT_START_SHIFT 28
+#define CONCONTROL_RD_FETCH_SHIFT 12
+#define CONCONTROL_RD_FETCH_MASK (0x7 << CONCONTROL_RD_FETCH_SHIFT)
+#define CONCONTROL_AREF_EN_SHIFT 5
+
+/* PRECHCONFIG register field */
+#define PRECHCONFIG_TP_CNT_SHIFT 24
+
+/* PWRDNCONFIG register field */
+#define PWRDNCONFIG_DPWRDN_CYC_SHIFT 0
+#define PWRDNCONFIG_DSREF_CYC_SHIFT 16
+
+/* PHY_CON0 register fields */
+#define PHY_CON0_T_WRRDCMD_SHIFT 17
+#define PHY_CON0_T_WRRDCMD_MASK (0x7 << PHY_CON0_T_WRRDCMD_SHIFT)
+#define PHY_CON0_CTRL_DDR_MODE_SHIFT 11
+
+/* PHY_CON1 register fields */
+#define PHY_CON1_RDLVL_RDDATA_ADJ_SHIFT 0
+
+/* PHY_CON12 register fields */
+#define PHY_CON12_CTRL_START_POINT_SHIFT 24
+#define PHY_CON12_CTRL_INC_SHIFT 16
+#define PHY_CON12_CTRL_FORCE_SHIFT 8
+#define PHY_CON12_CTRL_START_SHIFT 6
+#define PHY_CON12_CTRL_START_MASK (1 << PHY_CON12_CTRL_START_SHIFT)
+#define PHY_CON12_CTRL_DLL_ON_SHIFT 5
+#define PHY_CON12_CTRL_DLL_ON_MASK (1 << PHY_CON12_CTRL_DLL_ON_SHIFT)
+#define PHY_CON12_CTRL_REF_SHIFT 1
+
+/* PHY_CON16 register fields */
+#define PHY_CON16_ZQ_MODE_DDS_SHIFT 24
+#define PHY_CON16_ZQ_MODE_DDS_MASK (0x7 << PHY_CON16_ZQ_MODE_DDS_SHIFT)
+
+#define PHY_CON16_ZQ_MODE_TERM_SHIFT 21
+#define PHY_CON16_ZQ_MODE_TERM_MASK (0x7 << PHY_CON16_ZQ_MODE_TERM_SHIFT)
+
+#define PHY_CON16_ZQ_MODE_NOTERM_MASK (1 << 19)
+
+/* PHY_CON42 register fields */
+#define PHY_CON42_CTRL_BSTLEN_SHIFT 8
+#define PHY_CON42_CTRL_BSTLEN_MASK (0xff << PHY_CON42_CTRL_BSTLEN_SHIFT)
+
+#define PHY_CON42_CTRL_RDLAT_SHIFT 0
+#define PHY_CON42_CTRL_RDLAT_MASK (0x1f << PHY_CON42_CTRL_RDLAT_SHIFT)
+
#endif
#endif
diff --git a/board/samsung/smdk5250/Makefile b/board/samsung/smdk5250/Makefile
index 3675fad..1474fa8 100644
--- a/board/samsung/smdk5250/Makefile
+++ b/board/samsung/smdk5250/Makefile
@@ -27,7 +27,7 @@ LIB = $(obj)lib$(BOARD).o
SOBJS := lowlevel_init.o
COBJS := clock_init.o
-COBJS += dmc_init.o
+COBJS += dmc_common.o dmc_init_ddr3.o
COBJS += tzpc_init.o
COBJS += smdk5250_spl.o
diff --git a/board/samsung/smdk5250/dmc_common.c b/board/samsung/smdk5250/dmc_common.c
new file mode 100644
index 0000000..109602a
--- /dev/null
+++ b/board/samsung/smdk5250/dmc_common.c
@@ -0,0 +1,199 @@
+/*
+ * Mem setup common file for different types of DDR present on SMDK5250 boards.
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <asm/arch/spl.h>
+
+#include "clock_init.h"
+#include "setup.h"
+
+#define ZQ_INIT_TIMEOUT 10000
+
+int dmc_config_zq(struct mem_timings *mem,
+ struct exynos5_phy_control *phy0_ctrl,
+ struct exynos5_phy_control *phy1_ctrl)
+{
+ unsigned long val = 0;
+ int i;
+
+ /*
+ * ZQ Calibration:
+ * Select Driver Strength,
+ * long calibration for manual calibration
+ */
+ val = PHY_CON16_RESET_VAL;
+ val |= mem->zq_mode_dds << PHY_CON16_ZQ_MODE_DDS_SHIFT;
+ val |= mem->zq_mode_term << PHY_CON16_ZQ_MODE_TERM_SHIFT;
+ val |= ZQ_CLK_DIV_EN;
+ writel(val, &phy0_ctrl->phy_con16);
+ writel(val, &phy1_ctrl->phy_con16);
+
+ /* Disable termination */
+ if (mem->zq_mode_noterm)
+ val |= PHY_CON16_ZQ_MODE_NOTERM_MASK;
+ writel(val, &phy0_ctrl->phy_con16);
+ writel(val, &phy1_ctrl->phy_con16);
+
+ /* ZQ_MANUAL_START: Enable */
+ val |= ZQ_MANUAL_STR;
+ writel(val, &phy0_ctrl->phy_con16);
+ writel(val, &phy1_ctrl->phy_con16);
+
+ /* ZQ_MANUAL_START: Disable */
+ val &= ~ZQ_MANUAL_STR;
+
+ /*
+ * Since we are manaully calibrating the ZQ values,
+ * we are looping for the ZQ_init to complete.
+ */
+ i = ZQ_INIT_TIMEOUT;
+ while ((readl(&phy0_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) {
+ sdelay(100);
+ i--;
+ }
+ if (!i)
+ return -1;
+ writel(val, &phy0_ctrl->phy_con16);
+
+ i = ZQ_INIT_TIMEOUT;
+ while ((readl(&phy1_ctrl->phy_con17) & ZQ_DONE) != ZQ_DONE && i > 0) {
+ sdelay(100);
+ i--;
+ }
+ if (!i)
+ return -1;
+ writel(val, &phy1_ctrl->phy_con16);
+
+ return 0;
+}
+
+void update_reset_dll(struct exynos5_dmc *dmc, enum ddr_mode mode)
+{
+ unsigned long val;
+
+ if (mode == DDR_MODE_DDR3) {
+ val = MEM_TERM_EN | PHY_TERM_EN | DMC_CTRL_SHGATE;
+ writel(val, &dmc->phycontrol0);
+ }
+
+ /* Update DLL Information: Force DLL Resyncronization */
+ val = readl(&dmc->phycontrol0);
+ val |= FP_RSYNC;
+ writel(val, &dmc->phycontrol0);
+
+ /* Reset Force DLL Resyncronization */
+ val = readl(&dmc->phycontrol0);
+ val &= ~FP_RSYNC;
+ writel(val, &dmc->phycontrol0);
+}
+
+void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc)
+{
+ int channel, chip;
+
+ for (channel = 0; channel < mem->dmc_channels; channel++) {
+ unsigned long mask;
+
+ mask = channel << DIRECT_CMD_CHANNEL_SHIFT;
+ for (chip = 0; chip < mem->chips_to_configure; chip++) {
+ int i;
+
+ mask |= chip << DIRECT_CMD_CHIP_SHIFT;
+
+ /* Sending NOP command */
+ writel(DIRECT_CMD_NOP | mask, &dmc->directcmd);
+
+ /*
+ * TODO(alim.akhtar at samsung.com): Do we need these
+ * delays? This one and the next were not there for
+ * DDR3.
+ */
+ sdelay(0x10000);
+
+ /* Sending EMRS/MRS commands */
+ for (i = 0; i < MEM_TIMINGS_MSR_COUNT; i++) {
+ writel(mem->direct_cmd_msr[i] | mask,
+ &dmc->directcmd);
+ sdelay(0x10000);
+ }
+
+ if (mem->send_zq_init) {
+ /* Sending ZQINIT command */
+ writel(DIRECT_CMD_ZQINIT | mask,
+ &dmc->directcmd);
+
+ sdelay(10000);
+ }
+ }
+ }
+}
+
+void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc)
+{
+ int channel, chip;
+
+ for (channel = 0; channel < mem->dmc_channels; channel++) {
+ unsigned long mask;
+
+ mask = channel << DIRECT_CMD_CHANNEL_SHIFT;
+ for (chip = 0; chip < mem->chips_per_channel; chip++) {
+ mask |= chip << DIRECT_CMD_CHIP_SHIFT;
+
+ /* PALL (all banks precharge) CMD */
+ writel(DIRECT_CMD_PALL | mask, &dmc->directcmd);
+ sdelay(0x10000);
+ }
+ }
+}
+
+void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc)
+{
+ writel(mem->memconfig, &dmc->memconfig0);
+ writel(mem->memconfig, &dmc->memconfig1);
+ writel(DMC_MEMBASECONFIG0_VAL, &dmc->membaseconfig0);
+ writel(DMC_MEMBASECONFIG1_VAL, &dmc->membaseconfig1);
+}
+
+void mem_ctrl_init()
+{
+ struct spl_machine_param *param = spl_get_machine_params();
+ struct mem_timings *mem;
+ int ret;
+
+ mem = clock_get_mem_timings();
+
+ /* If there are any other memory variant, add their init call below */
+ if (param->mem_type == DDR_MODE_DDR3) {
+ ret = ddr3_mem_ctrl_init(mem, param->mem_iv_size);
+ if (ret) {
+ /* will hang if failed to init memory control */
+ while (1)
+ ;
+ }
+ } else {
+ /* will hang if unknow memory type */
+ while (1)
+ ;
+ }
+}
diff --git a/board/samsung/smdk5250/dmc_init.c b/board/samsung/smdk5250/dmc_init.c
deleted file mode 100644
index 7881074..0000000
--- a/board/samsung/smdk5250/dmc_init.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/*
- * Memory setup for SMDK5250 board based on EXYNOS5
- *
- * Copyright (C) 2012 Samsung Electronics
- *
- * 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
- */
-
-#include <config.h>
-#include <asm/io.h>
-#include <asm/arch/dmc.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/cpu.h>
-#include "setup.h"
-
-/* APLL : 1GHz */
-/* MCLK_CDREX: MCLK_CDREX_533*/
-/* LPDDR support: LPDDR2 */
-static void reset_phy_ctrl(void);
-static void config_zq(struct exynos5_phy_control *,
- struct exynos5_phy_control *);
-static void update_reset_dll(struct exynos5_dmc *);
-static void config_cdrex(void);
-static void config_mrs(struct exynos5_dmc *);
-static void sec_sdram_phy_init(struct exynos5_dmc *);
-static void config_prech(struct exynos5_dmc *);
-static void config_rdlvl(struct exynos5_dmc *,
- struct exynos5_phy_control *,
- struct exynos5_phy_control *);
-static void config_memory(struct exynos5_dmc *);
-
-static void config_offsets(unsigned int,
- struct exynos5_phy_control *,
- struct exynos5_phy_control *);
-
-static void reset_phy_ctrl(void)
-{
- struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
-
- writel(PHY_RESET_VAL, &clk->lpddr3phy_ctrl);
- sdelay(0x10000);
-}
-
-static void config_zq(struct exynos5_phy_control *phy0_ctrl,
- struct exynos5_phy_control *phy1_ctrl)
-{
- unsigned long val = 0;
- /*
- * ZQ Calibration:
- * Select Driver Strength,
- * long calibration for manual calibration
- */
- val = PHY_CON16_RESET_VAL;
- SET_ZQ_MODE_DDS_VAL(val);
- SET_ZQ_MODE_TERM_VAL(val);
- val |= ZQ_CLK_DIV_EN;
- writel(val, &phy0_ctrl->phy_con16);
- writel(val, &phy1_ctrl->phy_con16);
-
- /* Disable termination */
- val |= ZQ_MODE_NOTERM;
- writel(val, &phy0_ctrl->phy_con16);
- writel(val, &phy1_ctrl->phy_con16);
-
- /* ZQ_MANUAL_START: Enable */
- val |= ZQ_MANUAL_STR;
- writel(val, &phy0_ctrl->phy_con16);
- writel(val, &phy1_ctrl->phy_con16);
- sdelay(0x10000);
-
- /* ZQ_MANUAL_START: Disable */
- val &= ~ZQ_MANUAL_STR;
- writel(val, &phy0_ctrl->phy_con16);
- writel(val, &phy1_ctrl->phy_con16);
-}
-
-static void update_reset_dll(struct exynos5_dmc *dmc)
-{
- unsigned long val;
- /*
- * Update DLL Information:
- * Force DLL Resyncronization
- */
- val = readl(&dmc->phycontrol0);
- val |= FP_RSYNC;
- writel(val, &dmc->phycontrol0);
-
- /* Reset Force DLL Resyncronization */
- val = readl(&dmc->phycontrol0);
- val &= ~FP_RSYNC;
- writel(val, &dmc->phycontrol0);
-}
-
-static void config_mrs(struct exynos5_dmc *dmc)
-{
- unsigned long channel, chip, mask = 0, val;
-
- for (channel = 0; channel < CONFIG_DMC_CHANNELS; channel++) {
- SET_CMD_CHANNEL(mask, channel);
- for (chip = 0; chip < CONFIG_CHIPS_PER_CHANNEL; chip++) {
- /*
- * NOP CMD:
- * Assert and hold CKE to logic high level
- */
- SET_CMD_CHIP(mask, chip);
- val = DIRECT_CMD_NOP | mask;
- writel(val, &dmc->directcmd);
- sdelay(0x10000);
-
- /* EMRS, MRS Cmds(Mode Reg Settings) Using Direct Cmd */
- val = DIRECT_CMD_MRS1 | mask;
- writel(val, &dmc->directcmd);
- sdelay(0x10000);
-
- val = DIRECT_CMD_MRS2 | mask;
- writel(val, &dmc->directcmd);
- sdelay(0x10000);
-
- /* MCLK_CDREX_533 */
- val = DIRECT_CMD_MRS3 | mask;
- writel(val, &dmc->directcmd);
- sdelay(0x10000);
-
- val = DIRECT_CMD_MRS4 | mask;
- writel(val, &dmc->directcmd);
- sdelay(0x10000);
- }
- }
-}
-
-static void config_prech(struct exynos5_dmc *dmc)
-{
- unsigned long channel, chip, mask = 0, val;
-
- for (channel = 0; channel < CONFIG_DMC_CHANNELS; channel++) {
- SET_CMD_CHANNEL(mask, channel);
- for (chip = 0; chip < CONFIG_CHIPS_PER_CHANNEL; chip++) {
- SET_CMD_CHIP(mask, chip);
- /* PALL (all banks precharge) CMD */
- val = DIRECT_CMD_PALL | mask;
- writel(val, &dmc->directcmd);
- sdelay(0x10000);
- }
- }
-}
-
-static void sec_sdram_phy_init(struct exynos5_dmc *dmc)
-{
- unsigned long val;
- val = readl(&dmc->concontrol);
- val |= DFI_INIT_START;
- writel(val, &dmc->concontrol);
- sdelay(0x10000);
-
- val = readl(&dmc->concontrol);
- val &= ~DFI_INIT_START;
- writel(val, &dmc->concontrol);
-}
-
-static void config_offsets(unsigned int state,
- struct exynos5_phy_control *phy0_ctrl,
- struct exynos5_phy_control *phy1_ctrl)
-{
- unsigned long val;
- /* Set Offsets to read DQS */
- val = (state == SET) ? SET_DQS_OFFSET_VAL : RESET_DQS_OFFSET_VAL;
- writel(val, &phy0_ctrl->phy_con4);
- writel(val, &phy1_ctrl->phy_con4);
-
- /* Set Offsets to read DQ */
- val = (state == SET) ? SET_DQ_OFFSET_VAL : RESET_DQ_OFFSET_VAL;
- writel(val, &phy0_ctrl->phy_con6);
- writel(val, &phy1_ctrl->phy_con6);
-
- /* Debug Offset */
- val = (state == SET) ? SET_DEBUG_OFFSET_VAL : RESET_DEBUG_OFFSET_VAL;
- writel(val, &phy0_ctrl->phy_con10);
- writel(val, &phy1_ctrl->phy_con10);
-}
-
-static void config_cdrex(void)
-{
- struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
- writel(CLK_DIV_CDREX_VAL, &clk->div_cdrex);
- writel(CLK_SRC_CDREX_VAL, &clk->src_cdrex);
- sdelay(0x30000);
-}
-
-static void config_ctrl_dll_on(unsigned int state,
- unsigned int ctrl_force_val,
- struct exynos5_phy_control *phy0_ctrl,
- struct exynos5_phy_control *phy1_ctrl)
-{
- unsigned long val;
- val = readl(&phy0_ctrl->phy_con12);
- CONFIG_CTRL_DLL_ON(val, state);
- SET_CTRL_FORCE_VAL(val, ctrl_force_val);
- writel(val, &phy0_ctrl->phy_con12);
-
- val = readl(&phy1_ctrl->phy_con12);
- CONFIG_CTRL_DLL_ON(val, state);
- SET_CTRL_FORCE_VAL(val, ctrl_force_val);
- writel(val, &phy1_ctrl->phy_con12);
-}
-
-static void config_ctrl_start(unsigned int state,
- struct exynos5_phy_control *phy0_ctrl,
- struct exynos5_phy_control *phy1_ctrl)
-{
- unsigned long val;
- val = readl(&phy0_ctrl->phy_con12);
- CONFIG_CTRL_START(val, state);
- writel(val, &phy0_ctrl->phy_con12);
-
- val = readl(&phy1_ctrl->phy_con12);
- CONFIG_CTRL_START(val, state);
- writel(val, &phy1_ctrl->phy_con12);
-}
-
-#if defined(CONFIG_RD_LVL)
-static void config_rdlvl(struct exynos5_dmc *dmc,
- struct exynos5_phy_control *phy0_ctrl,
- struct exynos5_phy_control *phy1_ctrl)
-{
- unsigned long val;
-
- /* Disable CTRL_DLL_ON and set ctrl_force */
- config_ctrl_dll_on(RESET, 0x2D, phy0_ctrl, phy1_ctrl);
-
- /*
- * Set ctrl_gateadj, ctrl_readadj
- * ctrl_gateduradj, rdlvl_pass_adj
- * rdlvl_rddataPadj
- */
- val = SET_RDLVL_RDDATAPADJ;
- writel(val, &phy0_ctrl->phy_con1);
- writel(val, &phy1_ctrl->phy_con1);
-
- /* LPDDR2 Address */
- writel(LPDDR2_ADDR, &phy0_ctrl->phy_con22);
- writel(LPDDR2_ADDR, &phy1_ctrl->phy_con22);
-
- /* Enable Byte Read Leveling set ctrl_ddr_mode */
- val = readl(&phy0_ctrl->phy_con0);
- val |= BYTE_RDLVL_EN;
- writel(val, &phy0_ctrl->phy_con0);
- val = readl(&phy1_ctrl->phy_con0);
- val |= BYTE_RDLVL_EN;
- writel(val, &phy1_ctrl->phy_con0);
-
- /* rdlvl_en: Use levelling offset instead ctrl_shiftc */
- val = PHY_CON2_RESET_VAL | RDLVL_EN;
- writel(val, &phy0_ctrl->phy_con2);
- writel(val, &phy1_ctrl->phy_con2);
- sdelay(0x10000);
-
- /* Enable Data Eye Training */
- val = readl(&dmc->rdlvl_config);
- val |= CTRL_RDLVL_DATA_EN;
- writel(val, &dmc->rdlvl_config);
- sdelay(0x10000);
-
- /* Disable Data Eye Training */
- val = readl(&dmc->rdlvl_config);
- val &= ~CTRL_RDLVL_DATA_EN;
- writel(val, &dmc->rdlvl_config);
-
- /* RdDeSkew_clear: Clear */
- val = readl(&phy0_ctrl->phy_con2);
- val |= RDDSKEW_CLEAR;
- writel(val, &phy0_ctrl->phy_con2);
- val = readl(&phy1_ctrl->phy_con2);
- val |= RDDSKEW_CLEAR;
- writel(val, &phy1_ctrl->phy_con2);
-
- /* Enable CTRL_DLL_ON */
- config_ctrl_dll_on(SET, 0x0, phy0_ctrl, phy1_ctrl);
-
- update_reset_dll(dmc);
- sdelay(0x10000);
-
- /* ctrl_atgte: ctrl_gate_p*, ctrl_read_p* generated by PHY */
- val = readl(&phy0_ctrl->phy_con0);
- val &= ~CTRL_ATGATE;
- writel(val, &phy0_ctrl->phy_con0);
- val = readl(&phy1_ctrl->phy_con0);
- val &= ~CTRL_ATGATE;
- writel(val, &phy1_ctrl->phy_con0);
-}
-#endif
-
-static void config_memory(struct exynos5_dmc *dmc)
-{
- /*
- * Memory Configuration Chip 0
- * Address Mapping: Interleaved
- * Number of Column address Bits: 10 bits
- * Number of Rows Address Bits: 14
- * Number of Banks: 8
- */
- writel(DMC_MEMCONFIG0_VAL, &dmc->memconfig0);
-
- /*
- * Memory Configuration Chip 1
- * Address Mapping: Interleaved
- * Number of Column address Bits: 10 bits
- * Number of Rows Address Bits: 14
- * Number of Banks: 8
- */
- writel(DMC_MEMCONFIG1_VAL, &dmc->memconfig1);
-
- /*
- * Chip0: AXI
- * AXI Base Address: 0x40000000
- * AXI Base Address Mask: 0x780
- */
- writel(DMC_MEMBASECONFIG0_VAL, &dmc->membaseconfig0);
-
- /*
- * Chip1: AXI
- * AXI Base Address: 0x80000000
- * AXI Base Address Mask: 0x780
- */
- writel(DMC_MEMBASECONFIG1_VAL, &dmc->membaseconfig1);
-}
-
-void mem_ctrl_init()
-{
- struct exynos5_phy_control *phy0_ctrl, *phy1_ctrl;
- struct exynos5_dmc *dmc;
- unsigned long val;
-
- phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE;
- phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE;
- dmc = (struct exynos5_dmc *)EXYNOS5_DMC_CTRL_BASE;
-
- /* Reset PHY Controllor: PHY_RESET[0] */
- reset_phy_ctrl();
-
- /*set Read Latancy and Burst Length for PHY0 and PHY1 */
- writel(PHY_CON42_VAL, &phy0_ctrl->phy_con42);
- writel(PHY_CON42_VAL, &phy1_ctrl->phy_con42);
-
- /* ZQ Cofiguration */
- config_zq(phy0_ctrl, phy1_ctrl);
-
- /* Operation Mode : LPDDR2 */
- val = PHY_CON0_RESET_VAL;
- SET_CTRL_DDR_MODE(val, DDR_MODE_LPDDR2);
- writel(val, &phy0_ctrl->phy_con0);
- writel(val, &phy1_ctrl->phy_con0);
-
- /* DQS, DQ: Signal, for LPDDR2: Always Set */
- val = CTRL_PULLD_DQ | CTRL_PULLD_DQS;
- writel(val, &phy0_ctrl->phy_con14);
- writel(val, &phy1_ctrl->phy_con14);
-
- /* Init SEC SDRAM PHY */
- sec_sdram_phy_init(dmc);
- sdelay(0x10000);
-
- update_reset_dll(dmc);
-
- /*
- * Dynamic Clock: Always Running
- * Memory Burst length: 4
- * Number of chips: 2
- * Memory Bus width: 32 bit
- * Memory Type: LPDDR2-S4
- * Additional Latancy for PLL: 1 Cycle
- */
- writel(DMC_MEMCONTROL_VAL, &dmc->memcontrol);
-
- config_memory(dmc);
-
- /* Precharge Configuration */
- writel(DMC_PRECHCONFIG_VAL, &dmc->prechconfig);
-
- /* Power Down mode Configuration */
- writel(DMC_PWRDNCONFIG_VAL, &dmc->pwrdnconfig);
-
- /* Periodic Refrese Interval */
- writel(DMC_TIMINGREF_VAL, &dmc->timingref);
-
- /*
- * TimingRow, TimingData, TimingPower Setting:
- * Values as per Memory AC Parameters
- */
- writel(DMC_TIMINGROW_VAL, &dmc->timingrow);
-
- writel(DMC_TIMINGDATA_VAL, &dmc->timingdata);
-
- writel(DMC_TIMINGPOWER_VAL, &dmc->timingpower);
-
- /* Memory Channel Inteleaving Size: 128 Bytes */
- writel(CONFIG_IV_SIZE, &dmc->ivcontrol);
-
- /* Set DQS, DQ and DEBUG offsets */
- config_offsets(SET, phy0_ctrl, phy1_ctrl);
-
- /* Disable CTRL_DLL_ON and set ctrl_force */
- config_ctrl_dll_on(RESET, 0x7F, phy0_ctrl, phy1_ctrl);
- sdelay(0x10000);
-
- update_reset_dll(dmc);
-
- /* Config MRS(Mode Register Settingg) */
- config_mrs(dmc);
-
- config_cdrex();
-
- /* Reset DQS DQ and DEBUG offsets */
- config_offsets(RESET, phy0_ctrl, phy1_ctrl);
-
- /* Enable CTRL_DLL_ON */
- config_ctrl_dll_on(SET, 0x0, phy0_ctrl, phy1_ctrl);
-
- /* Stop DLL Locking */
- config_ctrl_start(RESET, phy0_ctrl, phy1_ctrl);
- sdelay(0x10000);
-
- /* Start DLL Locking */
- config_ctrl_start(SET, phy0_ctrl, phy1_ctrl);
- sdelay(0x10000);
-
- update_reset_dll(dmc);
-
-#if defined(CONFIG_RD_LVL)
- config_rdlvl(dmc, phy0_ctrl, phy1_ctrl);
-#endif
- config_prech(dmc);
-
- /*
- * Dynamic Clock: Stops During Idle Period
- * Dynamic Power Down: Enable
- * Dynamic Self refresh: Enable
- */
- val = readl(&dmc->memcontrol);
- val |= CLK_STOP_EN | DPWRDN_EN | DSREF_EN;
- writel(val, &dmc->memcontrol);
-
- /* Start Auto refresh */
- val = readl(&dmc->concontrol);
- val |= AREF_EN;
- writel(val, &dmc->concontrol);
-}
diff --git a/board/samsung/smdk5250/dmc_init_ddr3.c b/board/samsung/smdk5250/dmc_init_ddr3.c
new file mode 100644
index 0000000..e050790
--- /dev/null
+++ b/board/samsung/smdk5250/dmc_init_ddr3.c
@@ -0,0 +1,228 @@
+/*
+ * DDR3 mem setup file for SMDK5250 board based on EXYNOS5
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/dmc.h>
+#include "setup.h"
+#include "clock_init.h"
+
+#define RDLVL_COMPLETE_TIMEOUT 10000
+
+static void reset_phy_ctrl(void)
+{
+ struct exynos5_clock *clk = (struct exynos5_clock *)EXYNOS5_CLOCK_BASE;
+
+ writel(DDR3PHY_CTRL_PHY_RESET_OFF, &clk->lpddr3phy_ctrl);
+ writel(DDR3PHY_CTRL_PHY_RESET, &clk->lpddr3phy_ctrl);
+}
+
+int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size)
+{
+ unsigned int val;
+ struct exynos5_phy_control *phy0_ctrl, *phy1_ctrl;
+ struct exynos5_dmc *dmc;
+ int i;
+
+ phy0_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY0_BASE;
+ phy1_ctrl = (struct exynos5_phy_control *)EXYNOS5_DMC_PHY1_BASE;
+ dmc = (struct exynos5_dmc *)EXYNOS5_DMC_CTRL_BASE;
+
+ reset_phy_ctrl();
+
+ /* Set Impedance Output Driver */
+ val = (mem->impedance << CA_CK_DRVR_DS_OFFSET) |
+ (mem->impedance << CA_CKE_DRVR_DS_OFFSET) |
+ (mem->impedance << CA_CS_DRVR_DS_OFFSET) |
+ (mem->impedance << CA_ADR_DRVR_DS_OFFSET);
+ writel(val, &phy0_ctrl->phy_con39);
+ writel(val, &phy1_ctrl->phy_con39);
+
+ /* Set Read Latency and Burst Length for PHY0 and PHY1 */
+ val = (mem->ctrl_bstlen << PHY_CON42_CTRL_BSTLEN_SHIFT) |
+ (mem->ctrl_rdlat << PHY_CON42_CTRL_RDLAT_SHIFT);
+ writel(val, &phy0_ctrl->phy_con42);
+ writel(val, &phy1_ctrl->phy_con42);
+
+ /* ZQ Calibration */
+ if (dmc_config_zq(mem, phy0_ctrl, phy1_ctrl))
+ return SETUP_ERR_ZQ_CALIBRATION_FAILURE;
+
+ /* DQ Signal */
+ writel(mem->phy0_pulld_dqs, &phy0_ctrl->phy_con14);
+ writel(mem->phy1_pulld_dqs, &phy1_ctrl->phy_con14);
+
+ writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT)
+ | (mem->dfi_init_start << CONCONTROL_DFI_INIT_START_SHIFT),
+ &dmc->concontrol);
+
+ update_reset_dll(dmc, DDR_MODE_DDR3);
+
+ /* DQS Signal */
+ writel(mem->phy0_dqs, &phy0_ctrl->phy_con4);
+ writel(mem->phy1_dqs, &phy1_ctrl->phy_con4);
+
+ writel(mem->phy0_dq, &phy0_ctrl->phy_con6);
+ writel(mem->phy1_dq, &phy1_ctrl->phy_con6);
+
+ writel(mem->phy0_tFS, &phy0_ctrl->phy_con10);
+ writel(mem->phy1_tFS, &phy1_ctrl->phy_con10);
+
+ val = (mem->ctrl_start_point << PHY_CON12_CTRL_START_POINT_SHIFT) |
+ (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) |
+ (mem->ctrl_dll_on << PHY_CON12_CTRL_DLL_ON_SHIFT) |
+ (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT);
+ writel(val, &phy0_ctrl->phy_con12);
+ writel(val, &phy1_ctrl->phy_con12);
+
+ /* Start DLL locking */
+ writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT),
+ &phy0_ctrl->phy_con12);
+ writel(val | (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT),
+ &phy1_ctrl->phy_con12);
+
+ update_reset_dll(dmc, DDR_MODE_DDR3);
+
+ writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT),
+ &dmc->concontrol);
+
+ /* Memory Channel Inteleaving Size */
+ writel(mem->iv_size, &dmc->ivcontrol);
+
+ writel(mem->memconfig, &dmc->memconfig0);
+ writel(mem->memconfig, &dmc->memconfig1);
+ writel(mem->membaseconfig0, &dmc->membaseconfig0);
+ writel(mem->membaseconfig1, &dmc->membaseconfig1);
+
+ /* Precharge Configuration */
+ writel(mem->prechconfig_tp_cnt << PRECHCONFIG_TP_CNT_SHIFT,
+ &dmc->prechconfig);
+
+ /* Power Down mode Configuration */
+ writel(mem->dpwrdn_cyc << PWRDNCONFIG_DPWRDN_CYC_SHIFT |
+ mem->dsref_cyc << PWRDNCONFIG_DSREF_CYC_SHIFT,
+ &dmc->pwrdnconfig);
+
+ /* TimingRow, TimingData, TimingPower and Timingaref
+ * values as per Memory AC parameters
+ */
+ writel(mem->timing_ref, &dmc->timingref);
+ writel(mem->timing_row, &dmc->timingrow);
+ writel(mem->timing_data, &dmc->timingdata);
+ writel(mem->timing_power, &dmc->timingpower);
+
+ /* Send PALL command */
+ dmc_config_prech(mem, dmc);
+
+ /* Send NOP, MRS and ZQINIT commands */
+ dmc_config_mrs(mem, dmc);
+
+ if (mem->gate_leveling_enable) {
+ val = PHY_CON0_RESET_VAL;
+ val |= P0_CMD_EN;
+ writel(val, &phy0_ctrl->phy_con0);
+ writel(val, &phy1_ctrl->phy_con0);
+
+ val = PHY_CON2_RESET_VAL;
+ val |= INIT_DESKEW_EN;
+ writel(val, &phy0_ctrl->phy_con2);
+ writel(val, &phy1_ctrl->phy_con2);
+
+ val = PHY_CON0_RESET_VAL;
+ val |= P0_CMD_EN;
+ val |= BYTE_RDLVL_EN;
+ writel(val, &phy0_ctrl->phy_con0);
+ writel(val, &phy1_ctrl->phy_con0);
+
+ val = (mem->ctrl_start_point <<
+ PHY_CON12_CTRL_START_POINT_SHIFT) |
+ (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) |
+ (mem->ctrl_force << PHY_CON12_CTRL_FORCE_SHIFT) |
+ (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT) |
+ (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT);
+ writel(val, &phy0_ctrl->phy_con12);
+ writel(val, &phy1_ctrl->phy_con12);
+
+ val = PHY_CON2_RESET_VAL;
+ val |= INIT_DESKEW_EN;
+ val |= RDLVL_GATE_EN;
+ writel(val, &phy0_ctrl->phy_con2);
+ writel(val, &phy1_ctrl->phy_con2);
+
+ val = PHY_CON0_RESET_VAL;
+ val |= P0_CMD_EN;
+ val |= BYTE_RDLVL_EN;
+ val |= CTRL_SHGATE;
+ writel(val, &phy0_ctrl->phy_con0);
+ writel(val, &phy1_ctrl->phy_con0);
+
+ val = PHY_CON1_RESET_VAL;
+ val &= ~(CTRL_GATEDURADJ_MASK);
+ writel(val, &phy0_ctrl->phy_con1);
+ writel(val, &phy1_ctrl->phy_con1);
+
+ writel(CTRL_RDLVL_GATE_ENABLE, &dmc->rdlvl_config);
+ i = RDLVL_COMPLETE_TIMEOUT;
+ while ((readl(&dmc->phystatus) &
+ (RDLVL_COMPLETE_CHO | RDLVL_COMPLETE_CH1)) !=
+ (RDLVL_COMPLETE_CHO | RDLVL_COMPLETE_CH1) && i > 0) {
+ /*
+ * TODO(waihong): Comment on how long this take to
+ * timeout
+ */
+ sdelay(100);
+ i--;
+ }
+ if (!i)
+ return SETUP_ERR_RDLV_COMPLETE_TIMEOUT;
+ writel(CTRL_RDLVL_GATE_DISABLE, &dmc->rdlvl_config);
+
+ writel(0, &phy0_ctrl->phy_con14);
+ writel(0, &phy1_ctrl->phy_con14);
+
+ val = (mem->ctrl_start_point <<
+ PHY_CON12_CTRL_START_POINT_SHIFT) |
+ (mem->ctrl_inc << PHY_CON12_CTRL_INC_SHIFT) |
+ (mem->ctrl_force << PHY_CON12_CTRL_FORCE_SHIFT) |
+ (mem->ctrl_start << PHY_CON12_CTRL_START_SHIFT) |
+ (mem->ctrl_dll_on << PHY_CON12_CTRL_DLL_ON_SHIFT) |
+ (mem->ctrl_ref << PHY_CON12_CTRL_REF_SHIFT);
+ writel(val, &phy0_ctrl->phy_con12);
+ writel(val, &phy1_ctrl->phy_con12);
+
+ update_reset_dll(dmc, DDR_MODE_DDR3);
+ }
+
+ /* Send PALL command */
+ dmc_config_prech(mem, dmc);
+
+ writel(mem->memcontrol, &dmc->memcontrol);
+
+ /* Set DMC Concontrol and enable auto-refresh counter */
+ writel(mem->concontrol | (mem->rd_fetch << CONCONTROL_RD_FETCH_SHIFT)
+ | (mem->aref_en << CONCONTROL_AREF_EN_SHIFT), &dmc->concontrol);
+ return 0;
+}
diff --git a/board/samsung/smdk5250/setup.h b/board/samsung/smdk5250/setup.h
index bae0faf..3abfa7d 100644
--- a/board/samsung/smdk5250/setup.h
+++ b/board/samsung/smdk5250/setup.h
@@ -529,8 +529,65 @@ enum {
};
+/*
+ * Memory variant specific initialization code
+ *
+ * @param mem Memory timings for this memory type.
+ * @param mem_iv_size Memory interleaving size is a configurable parameter
+ * which the DMC uses to decide how to split a memory
+ * chunk into smaller chunks to support concurrent
+ * accesses; may vary across boards.
+ * @return 0 if ok, SETUP_ERR_... if there is a problem
+ */
+int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size);
+
+/*
+ * Configure ZQ I/O interface
+ *
+ * @param mem Memory timings for this memory type.
+ * @param phy0_ctrl Pointer to struct containing PHY0 control reg
+ * @param phy1_ctrl Pointer to struct containing PHY1 control reg
+ * @return 0 if ok, -1 on error
+ */
+int dmc_config_zq(struct mem_timings *mem,
+ struct exynos5_phy_control *phy0_ctrl,
+ struct exynos5_phy_control *phy1_ctrl);
+
+/*
+ * Send NOP and MRS/EMRS Direct commands
+ *
+ * @param mem Memory timings for this memory type.
+ * @param dmc Pointer to struct of DMC registers
+ */
+void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc);
+
+/*
+ * Send PALL Direct commands
+ *
+ * @param mem Memory timings for this memory type.
+ * @param dmc Pointer to struct of DMC registers
+ */
+void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc);
+
+/*
+ * Configure the memconfig and membaseconfig registers
+ *
+ * @param mem Memory timings for this memory type.
+ * @param exynos5_dmc Pointer to struct of DMC registers
+ */
+void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc);
+
+/*
+ * Reset the DLL. This function is common between DDR3 and LPDDR2.
+ * However, the reset value is different. So we are passing a flag
+ * ddr_mode to distinguish between LPDDR2 and DDR3.
+ *
+ * @param exynos5_dmc Pointer to struct of DMC registers
+ * @param ddr_mode Type of DDR memory
+ */
+void update_reset_dll(struct exynos5_dmc *, enum ddr_mode);
+
void mem_ctrl_init(void);
void system_clock_init(void);
void tzpc_init(void);
-
#endif
--
1.7.4.4
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