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Diffstat (limited to 'arch/arm/cpu/armv7/exynos/dmc_common.c')
-rw-r--r--arch/arm/cpu/armv7/exynos/dmc_common.c176
1 files changed, 0 insertions, 176 deletions
diff --git a/arch/arm/cpu/armv7/exynos/dmc_common.c b/arch/arm/cpu/armv7/exynos/dmc_common.c
deleted file mode 100644
index 9b6ee69..0000000
--- a/arch/arm/cpu/armv7/exynos/dmc_common.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * Mem setup common file for different types of DDR present on Exynos boards.
- *
- * Copyright (C) 2012 Samsung Electronics
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/arch/spl.h>
-
-#include "clock_init.h"
-#include "common_setup.h"
-#include "exynos5_setup.h"
-
-#define ZQ_INIT_TIMEOUT 10000
-
-int dmc_config_zq(struct mem_timings *mem, uint32_t *phy0_con16,
- uint32_t *phy1_con16, uint32_t *phy0_con17,
- uint32_t *phy1_con17)
-{
- 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_con16);
- writel(val, phy1_con16);
-
- /* Disable termination */
- if (mem->zq_mode_noterm)
- val |= PHY_CON16_ZQ_MODE_NOTERM_MASK;
- writel(val, phy0_con16);
- writel(val, phy1_con16);
-
- /* ZQ_MANUAL_START: Enable */
- val |= ZQ_MANUAL_STR;
- writel(val, phy0_con16);
- writel(val, phy1_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_con17) & ZQ_DONE) != ZQ_DONE && i > 0) {
- sdelay(100);
- i--;
- }
- if (!i)
- return -1;
- writel(val, phy0_con16);
-
- i = ZQ_INIT_TIMEOUT;
- while ((readl(phy1_con17) & ZQ_DONE) != ZQ_DONE && i > 0) {
- sdelay(100);
- i--;
- }
- if (!i)
- return -1;
- writel(val, phy1_con16);
-
- return 0;
-}
-
-void update_reset_dll(uint32_t *phycontrol0, enum ddr_mode mode)
-{
- unsigned long val;
-
- if (mode == DDR_MODE_DDR3) {
- val = MEM_TERM_EN | PHY_TERM_EN | DMC_CTRL_SHGATE;
- writel(val, phycontrol0);
- }
-
- /* Update DLL Information: Force DLL Resyncronization */
- val = readl(phycontrol0);
- val |= FP_RSYNC;
- writel(val, phycontrol0);
-
- /* Reset Force DLL Resyncronization */
- val = readl(phycontrol0);
- val &= ~FP_RSYNC;
- writel(val, phycontrol0);
-}
-
-void dmc_config_mrs(struct mem_timings *mem, uint32_t *directcmd)
-{
- 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, directcmd);
-
- /*
- * TODO(alim.akhtar@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,
- directcmd);
- sdelay(0x10000);
- }
-
- if (mem->send_zq_init) {
- /* Sending ZQINIT command */
- writel(DIRECT_CMD_ZQINIT | mask,
- directcmd);
-
- sdelay(10000);
- }
- }
- }
-}
-
-void dmc_config_prech(struct mem_timings *mem, uint32_t *directcmd)
-{
- 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, directcmd);
- sdelay(0x10000);
- }
- }
-}
-
-void mem_ctrl_init(int reset)
-{
- 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, reset);
- if (ret) {
- /* will hang if failed to init memory control */
- while (1)
- ;
- }
- } else {
- /* will hang if unknow memory type */
- while (1)
- ;
- }
-}