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-rw-r--r--board/samsung/smdk5250/dmc_init.c462
1 files changed, 0 insertions, 462 deletions
diff --git a/board/samsung/smdk5250/dmc_init.c b/board/samsung/smdk5250/dmc_init.c
deleted file mode 100644
index 788107465..000000000
--- 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);
-}
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