[U-Boot] [PATCH v4 05/12] omap4: add sdram init support
Aneesh V
aneesh at ti.com
Thu Jul 21 09:28:11 CEST 2011
Add support for the SDRAM controller (EMIF).
Signed-off-by: Aneesh V <aneesh at ti.com>
---
V2:
* Minor corrections in do_lpddr2_init()
* Minor corrections to read_idle interval calculation
* Sanity test of memory after doing the initialization
* Fixed warnings reported with with latest GCC compilers
V3:
* Removed references to modify_reg_32()
* Updated references to OMAP_INIT_CONTEXT_* flags
* Replaced calls to omap4_revision() with omap_revision()
* Replaced sanity test with get_ram_size()
---
arch/arm/cpu/armv7/omap4/Makefile | 2 +
arch/arm/cpu/armv7/omap4/board.c | 6 +-
arch/arm/cpu/armv7/omap4/emif.c | 328 +++++++++
arch/arm/cpu/armv7/omap4/sdram_elpida.c | 131 ++++
arch/arm/include/asm/arch-omap4/clocks.h | 8 +-
arch/arm/include/asm/arch-omap4/emif.h | 1025 +++++++++++++++++++++++++++
arch/arm/include/asm/arch-omap4/omap4.h | 5 +
arch/arm/include/asm/arch-omap4/sys_proto.h | 2 +
8 files changed, 1500 insertions(+), 7 deletions(-)
create mode 100644 arch/arm/cpu/armv7/omap4/emif.c
create mode 100644 arch/arm/cpu/armv7/omap4/sdram_elpida.c
create mode 100644 arch/arm/include/asm/arch-omap4/emif.h
diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile
index ac4b2a6..e1ccd68 100644
--- a/arch/arm/cpu/armv7/omap4/Makefile
+++ b/arch/arm/cpu/armv7/omap4/Makefile
@@ -29,7 +29,9 @@ SOBJS += lowlevel_init.o
COBJS += board.o
COBJS += clocks.o
+COBJS += emif.o
COBJS += mem.o
+COBJS += sdram_elpida.o
COBJS += sys_info.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c
index 1c26a66..ca107f7 100644
--- a/arch/arm/cpu/armv7/omap4/board.c
+++ b/arch/arm/cpu/armv7/omap4/board.c
@@ -189,7 +189,7 @@ void watchdog_init(void)
* This is needed because the size of memory installed may be
* different on different versions of the board
*/
-u32 sdram_size(void)
+u32 omap4_sdram_size(void)
{
u32 section, i, total_size = 0, size, addr;
for (i = 0; i < 4; i++) {
@@ -215,8 +215,8 @@ u32 sdram_size(void)
*/
int dram_init(void)
{
-
- gd->ram_size = sdram_size();
+ sdram_init();
+ gd->ram_size = omap4_sdram_size();
return 0;
}
diff --git a/arch/arm/cpu/armv7/omap4/emif.c b/arch/arm/cpu/armv7/omap4/emif.c
new file mode 100644
index 0000000..b25c1ee
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap4/emif.c
@@ -0,0 +1,328 @@
+/*
+ * EMIF programming
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh at ti.com>
+ *
+ * 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/emif.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/omap_common.h>
+#include <asm/utils.h>
+
+static inline u32 emif_num(u32 base)
+{
+ if (base == OMAP44XX_EMIF1)
+ return 1;
+ else if (base == OMAP44XX_EMIF2)
+ return 2;
+ else
+ return 0;
+}
+
+static inline u32 get_mr(u32 base, u32 cs, u32 mr_addr)
+{
+ u32 mr;
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+ mr_addr |= cs << OMAP44XX_REG_CS_SHIFT;
+ writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg);
+ if (omap_revision() == OMAP4430_ES2_0)
+ mr = readl(&emif->emif_lpddr2_mode_reg_data_es2);
+ else
+ mr = readl(&emif->emif_lpddr2_mode_reg_data);
+ debug("get_mr: EMIF%d cs %d mr %08x val 0x%x\n", emif_num(base),
+ cs, mr_addr, mr);
+ return mr;
+}
+
+static inline void set_mr(u32 base, u32 cs, u32 mr_addr, u32 mr_val)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+ mr_addr |= cs << OMAP44XX_REG_CS_SHIFT;
+ writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg);
+ writel(mr_val, &emif->emif_lpddr2_mode_reg_data);
+}
+
+void emif_reset_phy(u32 base)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+ u32 iodft;
+
+ iodft = readl(&emif->emif_iodft_tlgc);
+ iodft |= OMAP44XX_REG_RESET_PHY_MASK;
+ writel(iodft, &emif->emif_iodft_tlgc);
+}
+
+static void do_lpddr2_init(u32 base, u32 cs)
+{
+ u32 mr_addr;
+
+ /* Wait till device auto initialization is complete */
+ while (get_mr(base, cs, LPDDR2_MR0) & LPDDR2_MR0_DAI_MASK)
+ ;
+ set_mr(base, cs, LPDDR2_MR10, MR10_ZQ_ZQINIT);
+ /*
+ * tZQINIT = 1 us
+ * Enough loops assuming a maximum of 2GHz
+ */
+ sdelay(2000);
+ set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3);
+ set_mr(base, cs, LPDDR2_MR16, MR16_REF_FULL_ARRAY);
+ /*
+ * Enable refresh along with writing MR2
+ * Encoding of RL in MR2 is (RL - 2)
+ */
+ mr_addr = LPDDR2_MR2 | OMAP44XX_REG_REFRESH_EN_MASK;
+ set_mr(base, cs, mr_addr, RL_FINAL - 2);
+}
+
+static void lpddr2_init(u32 base, const struct emif_regs *regs)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+ /* Not NVM */
+ clrbits_le32(&emif->emif_lpddr2_nvm_config, OMAP44XX_REG_CS1NVMEN_MASK);
+
+ /*
+ * Keep REG_INITREF_DIS = 1 to prevent re-initialization of SDRAM
+ * when EMIF_SDRAM_CONFIG register is written
+ */
+ setbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK);
+
+ /*
+ * Set the SDRAM_CONFIG and PHY_CTRL for the
+ * un-locked frequency & default RL
+ */
+ writel(regs->sdram_config_init, &emif->emif_sdram_config);
+ writel(regs->emif_ddr_phy_ctlr_1_init, &emif->emif_ddr_phy_ctrl_1);
+
+ do_lpddr2_init(base, CS0);
+ if (regs->sdram_config & OMAP44XX_REG_EBANK_MASK)
+ do_lpddr2_init(base, CS1);
+
+ writel(regs->sdram_config, &emif->emif_sdram_config);
+ writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1);
+
+ /* Enable refresh now */
+ clrbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK);
+
+}
+
+static void emif_update_timings(u32 base, const struct emif_regs *regs)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+ writel(regs->ref_ctrl, &emif->emif_sdram_ref_ctrl_shdw);
+ writel(regs->sdram_tim1, &emif->emif_sdram_tim_1_shdw);
+ writel(regs->sdram_tim2, &emif->emif_sdram_tim_2_shdw);
+ writel(regs->sdram_tim3, &emif->emif_sdram_tim_3_shdw);
+ if (omap_revision() == OMAP4430_ES1_0) {
+ /* ES1 bug EMIF should be in force idle during freq_update */
+ writel(0, &emif->emif_pwr_mgmt_ctrl);
+ } else {
+ writel(EMIF_PWR_MGMT_CTRL, &emif->emif_pwr_mgmt_ctrl);
+ writel(EMIF_PWR_MGMT_CTRL_SHDW, &emif->emif_pwr_mgmt_ctrl_shdw);
+ }
+ writel(regs->read_idle_ctrl, &emif->emif_read_idlectrl_shdw);
+ writel(regs->zq_config, &emif->emif_zq_config);
+ writel(regs->temp_alert_config, &emif->emif_temp_alert_config);
+ writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1_shdw);
+ /*
+ * Workaround:
+ * In a specific situation, the OCP interface between the DMM and
+ * EMIF may hang.
+ * 1. A TILER port is used to perform 2D burst writes of
+ * width 1 and height 8
+ * 2. ELLAn port is used to perform reads
+ * 3. All accesses are routed to the same EMIF controller
+ *
+ * Work around to avoid this issue REG_SYS_THRESH_MAX value should
+ * be kept higher than default 0x7. As per recommondation 0x0A will
+ * be used for better performance with REG_LL_THRESH_MAX = 0x00
+ */
+ if (omap_revision() == OMAP4430_ES1_0) {
+ writel(EMIF_L3_CONFIG_VAL_SYS_THRESH_0A_LL_THRESH_00,
+ &emif->emif_l3_config);
+ }
+}
+
+static void do_sdram_init(u32 base)
+{
+ const struct emif_regs *regs;
+ u32 in_sdram, emif_nr;
+
+ debug(">>do_sdram_init() %x\n", base);
+
+ in_sdram = running_from_sdram();
+ emif_nr = (base == OMAP44XX_EMIF1) ? 1 : 2;
+
+ emif_get_reg_dump(emif_nr, ®s);
+ if (!regs) {
+ debug("EMIF: reg dump not provided\n");
+ return;
+ }
+
+ /*
+ * Initializing the LPDDR2 device can not happen from SDRAM.
+ * Changing the timing registers in EMIF can happen(going from one
+ * OPP to another)
+ */
+ if (!in_sdram)
+ lpddr2_init(base, regs);
+
+ /* Write to the shadow registers */
+ emif_update_timings(base, regs);
+
+ debug("<<do_sdram_init() %x\n", base);
+}
+
+void sdram_init_pads(void)
+{
+ u32 lpddr2io;
+ struct control_lpddr2io_regs *lpddr2io_regs =
+ (struct control_lpddr2io_regs *)LPDDR2_IO_REGS_BASE;
+ u32 omap4_rev = omap_revision();
+
+ if (omap4_rev == OMAP4430_ES1_0)
+ lpddr2io = CONTROL_LPDDR2IO_SLEW_125PS_DRV8_PULL_DOWN;
+ else if (omap4_rev == OMAP4430_ES2_0)
+ lpddr2io = CONTROL_LPDDR2IO_SLEW_325PS_DRV8_GATE_KEEPER;
+ else
+ return; /* Post ES2.1 reset values will work */
+
+ writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_0);
+ writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_1);
+ writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_2);
+ writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_0);
+ writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_1);
+ writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_2);
+
+ writel(CONTROL_EFUSE_2_NMOS_PMOS_PTV_CODE_1, CONTROL_EFUSE_2);
+}
+
+static void emif_post_init_config(u32 base)
+{
+ struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+ u32 omap4_rev = omap_revision();
+
+ /* reset phy on ES2.0 */
+ if (omap4_rev == OMAP4430_ES2_0)
+ emif_reset_phy(base);
+
+ /* Put EMIF back in smart idle on ES1.0 */
+ if (omap4_rev == OMAP4430_ES1_0)
+ writel(0x80000000, &emif->emif_pwr_mgmt_ctrl);
+}
+
+static void dmm_init(u32 base)
+{
+ const struct dmm_lisa_map_regs *lisa_map_regs;
+
+ emif_get_dmm_regs(&lisa_map_regs);
+
+ struct dmm_lisa_map_regs *hw_lisa_map_regs =
+ (struct dmm_lisa_map_regs *)base;
+
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_3);
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_2);
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_1);
+ writel(0, &hw_lisa_map_regs->dmm_lisa_map_0);
+
+ writel(lisa_map_regs->dmm_lisa_map_3,
+ &hw_lisa_map_regs->dmm_lisa_map_3);
+ writel(lisa_map_regs->dmm_lisa_map_2,
+ &hw_lisa_map_regs->dmm_lisa_map_2);
+ writel(lisa_map_regs->dmm_lisa_map_1,
+ &hw_lisa_map_regs->dmm_lisa_map_1);
+ writel(lisa_map_regs->dmm_lisa_map_0,
+ &hw_lisa_map_regs->dmm_lisa_map_0);
+}
+
+/*
+ * SDRAM initialization:
+ * SDRAM initialization has two parts:
+ * 1. Configuring the SDRAM device
+ * 2. Update the AC timings related parameters in the EMIF module
+ * (1) should be done only once and should not be done while we are
+ * running from SDRAM.
+ * (2) can and should be done more than once if OPP changes.
+ * Particularly, this may be needed when we boot without SPL and
+ * and using Configuration Header(CH). ROM code supports only at 50% OPP
+ * at boot (low power boot). So u-boot has to switch to OPP100 and update
+ * the frequency. So,
+ * Doing (1) and (2) makes sense - first time initialization
+ * Doing (2) and not (1) makes sense - OPP change (when using CH)
+ * Doing (1) and not (2) doen't make sense
+ * See do_sdram_init() for the details
+ */
+void sdram_init(void)
+{
+ u32 in_sdram, size_prog, size_detect;
+
+ debug(">>sdram_init()\n");
+
+ if (omap4_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)
+ return;
+
+ in_sdram = running_from_sdram();
+ debug("in_sdram = %d\n", in_sdram);
+
+ if (!in_sdram) {
+ sdram_init_pads();
+ bypass_dpll(&prcm->cm_clkmode_dpll_core);
+ }
+
+ do_sdram_init(OMAP44XX_EMIF1);
+ do_sdram_init(OMAP44XX_EMIF2);
+
+ if (!in_sdram) {
+ dmm_init(OMAP44XX_DMM_LISA_MAP_BASE);
+ emif_post_init_config(OMAP44XX_EMIF1);
+ emif_post_init_config(OMAP44XX_EMIF2);
+
+ }
+
+ /* for the shadow registers to take effect */
+ freq_update_core();
+
+ /* Do some testing after the init */
+ if (!in_sdram) {
+ size_prog = omap4_sdram_size();
+ size_detect = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+ size_prog);
+ /* Compare with the size programmed */
+ if (size_detect != size_prog) {
+ printf("SDRAM: identified size not same as expected"
+ " size identified: %x expected: %x\n",
+ size_detect,
+ size_prog);
+ } else
+ debug("get_ram_size() successful");
+ }
+
+ debug("<<sdram_init()\n");
+}
diff --git a/arch/arm/cpu/armv7/omap4/sdram_elpida.c b/arch/arm/cpu/armv7/omap4/sdram_elpida.c
new file mode 100644
index 0000000..c950c87
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap4/sdram_elpida.c
@@ -0,0 +1,131 @@
+/*
+ * Timing and Organization details of the Elpida parts used in OMAP4
+ * SDPs and Panda
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh at ti.com>
+ *
+ * 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 <asm/arch/emif.h>
+#include <asm/arch/sys_proto.h>
+
+/*
+ * This file provides details of the LPDDR2 SDRAM parts used on OMAP4430
+ * SDP and Panda. Since the parts used and geometry are identical for
+ * SDP and Panda for a given OMAP4 revision, this information is kept
+ * here instead of being in board directory. However the key functions
+ * exported are weakly linked so that they can be over-ridden in the board
+ * directory if there is a OMAP4 board in the future that uses a different
+ * memory device or geometry.
+ *
+ * For any new board with different memory devices over-ride one or more
+ * of the following functions as per the CONFIG flags you intend to enable:
+ * - emif_get_reg_dump()
+ * - emif_get_dmm_regs()
+ * - emif_get_device_details()
+ * - emif_get_device_timings()
+ */
+
+static const struct emif_regs emif_regs_elpida_200_mhz_2cs = {
+ .sdram_config_init = 0x80000eb9,
+ .sdram_config = 0x80001ab9,
+ .ref_ctrl = 0x0000030c,
+ .sdram_tim1 = 0x08648311,
+ .sdram_tim2 = 0x101b06ca,
+ .sdram_tim3 = 0x0048a19f,
+ .read_idle_ctrl = 0x000501ff,
+ .zq_config = 0x500b3214,
+ .temp_alert_config = 0xd8016893,
+ .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
+ .emif_ddr_phy_ctlr_1 = 0x049ff808
+};
+
+static const struct emif_regs emif_regs_elpida_380_mhz_1cs = {
+ .sdram_config_init = 0x80000eb1,
+ .sdram_config = 0x80001ab1,
+ .ref_ctrl = 0x000005cd,
+ .sdram_tim1 = 0x10cb0622,
+ .sdram_tim2 = 0x20350d52,
+ .sdram_tim3 = 0x00b1431f,
+ .read_idle_ctrl = 0x000501ff,
+ .zq_config = 0x500b3214,
+ .temp_alert_config = 0x58016893,
+ .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
+ .emif_ddr_phy_ctlr_1 = 0x049ff418
+};
+
+const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
+ .sdram_config_init = 0x80000eb9,
+ .sdram_config = 0x80001ab9,
+ .ref_ctrl = 0x00000618,
+ .sdram_tim1 = 0x10eb0662,
+ .sdram_tim2 = 0x20370dd2,
+ .sdram_tim3 = 0x00b1c33f,
+ .read_idle_ctrl = 0x000501ff,
+ .zq_config = 0xd00b3214,
+ .temp_alert_config = 0xd8016893,
+ .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
+ .emif_ddr_phy_ctlr_1 = 0x049ff418
+};
+const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
+ .dmm_lisa_map_0 = 0xFF020100,
+ .dmm_lisa_map_1 = 0,
+ .dmm_lisa_map_2 = 0,
+ .dmm_lisa_map_3 = 0x80540300
+};
+
+const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
+ .dmm_lisa_map_0 = 0xFF020100,
+ .dmm_lisa_map_1 = 0,
+ .dmm_lisa_map_2 = 0,
+ .dmm_lisa_map_3 = 0x80640300
+};
+
+static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
+{
+ u32 omap4_rev = omap_revision();
+
+ /* Same devices and geometry on both EMIFs */
+ if (omap4_rev == OMAP4430_ES1_0)
+ *regs = &emif_regs_elpida_380_mhz_1cs;
+ else if (omap4_rev == OMAP4430_ES2_0)
+ *regs = &emif_regs_elpida_200_mhz_2cs;
+ else
+ *regs = &emif_regs_elpida_400_mhz_2cs;
+}
+void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
+ __attribute__((weak, alias("emif_get_reg_dump_sdp")));
+
+static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
+ **dmm_lisa_regs)
+{
+ u32 omap_rev = omap_revision();
+
+ if (omap_rev == OMAP4430_ES1_0)
+ *dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
+ else
+ *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
+}
+
+void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
+ __attribute__((weak, alias("emif_get_dmm_regs_sdp")));
diff --git a/arch/arm/include/asm/arch-omap4/clocks.h b/arch/arm/include/asm/arch-omap4/clocks.h
index 71db39c..37bdcee 100644
--- a/arch/arm/include/asm/arch-omap4/clocks.h
+++ b/arch/arm/include/asm/arch-omap4/clocks.h
@@ -33,10 +33,10 @@
*/
#define LDELAY 1000000
-#define CM_CLKMODE_DPLL_CORE (OMAP44XX_L4_CORE_BASE + 0x4120)
-#define CM_CLKMODE_DPLL_PER (OMAP44XX_L4_CORE_BASE + 0x8140)
-#define CM_CLKMODE_DPLL_MPU (OMAP44XX_L4_CORE_BASE + 0x4160)
-#define CM_CLKSEL_CORE (OMAP44XX_L4_CORE_BASE + 0x4100)
+#define CM_CLKMODE_DPLL_CORE 0x4A004120
+#define CM_CLKMODE_DPLL_PER 0x4A008140
+#define CM_CLKMODE_DPLL_MPU 0x4A004160
+#define CM_CLKSEL_CORE 0x4A004100
struct omap4_prcm_regs {
/* cm1.ckgen */
diff --git a/arch/arm/include/asm/arch-omap4/emif.h b/arch/arm/include/asm/arch-omap4/emif.h
new file mode 100644
index 0000000..09e9baa
--- /dev/null
+++ b/arch/arm/include/asm/arch-omap4/emif.h
@@ -0,0 +1,1025 @@
+/*
+ * OMAP44xx EMIF header
+ *
+ * Copyright (C) 2009-2010 Texas Instruments, Inc.
+ *
+ * Aneesh V <aneesh at ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _EMIF_H_
+#define _EMIF_H_
+#include <asm/types.h>
+#include <common.h>
+
+/* Base address */
+#define OMAP44XX_EMIF1 0x4c000000
+#define OMAP44XX_EMIF2 0x4d000000
+
+/* Registers shifts and masks */
+
+/* EMIF_MOD_ID_REV */
+#define OMAP44XX_REG_SCHEME_SHIFT 30
+#define OMAP44XX_REG_SCHEME_MASK (0x3 << 30)
+#define OMAP44XX_REG_MODULE_ID_SHIFT 16
+#define OMAP44XX_REG_MODULE_ID_MASK (0xfff << 16)
+#define OMAP44XX_REG_RTL_VERSION_SHIFT 11
+#define OMAP44XX_REG_RTL_VERSION_MASK (0x1f << 11)
+#define OMAP44XX_REG_MAJOR_REVISION_SHIFT 8
+#define OMAP44XX_REG_MAJOR_REVISION_MASK (0x7 << 8)
+#define OMAP44XX_REG_MINOR_REVISION_SHIFT 0
+#define OMAP44XX_REG_MINOR_REVISION_MASK (0x3f << 0)
+
+/* STATUS */
+#define OMAP44XX_REG_BE_SHIFT 31
+#define OMAP44XX_REG_BE_MASK (1 << 31)
+#define OMAP44XX_REG_DUAL_CLK_MODE_SHIFT 30
+#define OMAP44XX_REG_DUAL_CLK_MODE_MASK (1 << 30)
+#define OMAP44XX_REG_FAST_INIT_SHIFT 29
+#define OMAP44XX_REG_FAST_INIT_MASK (1 << 29)
+#define OMAP44XX_REG_PHY_DLL_READY_SHIFT 2
+#define OMAP44XX_REG_PHY_DLL_READY_MASK (1 << 2)
+
+/* SDRAM_CONFIG */
+#define OMAP44XX_REG_SDRAM_TYPE_SHIFT 29
+#define OMAP44XX_REG_SDRAM_TYPE_MASK (0x7 << 29)
+#define OMAP44XX_REG_IBANK_POS_SHIFT 27
+#define OMAP44XX_REG_IBANK_POS_MASK (0x3 << 27)
+#define OMAP44XX_REG_DDR_TERM_SHIFT 24
+#define OMAP44XX_REG_DDR_TERM_MASK (0x7 << 24)
+#define OMAP44XX_REG_DDR2_DDQS_SHIFT 23
+#define OMAP44XX_REG_DDR2_DDQS_MASK (1 << 23)
+#define OMAP44XX_REG_DYN_ODT_SHIFT 21
+#define OMAP44XX_REG_DYN_ODT_MASK (0x3 << 21)
+#define OMAP44XX_REG_DDR_DISABLE_DLL_SHIFT 20
+#define OMAP44XX_REG_DDR_DISABLE_DLL_MASK (1 << 20)
+#define OMAP44XX_REG_SDRAM_DRIVE_SHIFT 18
+#define OMAP44XX_REG_SDRAM_DRIVE_MASK (0x3 << 18)
+#define OMAP44XX_REG_CWL_SHIFT 16
+#define OMAP44XX_REG_CWL_MASK (0x3 << 16)
+#define OMAP44XX_REG_NARROW_MODE_SHIFT 14
+#define OMAP44XX_REG_NARROW_MODE_MASK (0x3 << 14)
+#define OMAP44XX_REG_CL_SHIFT 10
+#define OMAP44XX_REG_CL_MASK (0xf << 10)
+#define OMAP44XX_REG_ROWSIZE_SHIFT 7
+#define OMAP44XX_REG_ROWSIZE_MASK (0x7 << 7)
+#define OMAP44XX_REG_IBANK_SHIFT 4
+#define OMAP44XX_REG_IBANK_MASK (0x7 << 4)
+#define OMAP44XX_REG_EBANK_SHIFT 3
+#define OMAP44XX_REG_EBANK_MASK (1 << 3)
+#define OMAP44XX_REG_PAGESIZE_SHIFT 0
+#define OMAP44XX_REG_PAGESIZE_MASK (0x7 << 0)
+
+/* SDRAM_CONFIG_2 */
+#define OMAP44XX_REG_CS1NVMEN_SHIFT 30
+#define OMAP44XX_REG_CS1NVMEN_MASK (1 << 30)
+#define OMAP44XX_REG_EBANK_POS_SHIFT 27
+#define OMAP44XX_REG_EBANK_POS_MASK (1 << 27)
+#define OMAP44XX_REG_RDBNUM_SHIFT 4
+#define OMAP44XX_REG_RDBNUM_MASK (0x3 << 4)
+#define OMAP44XX_REG_RDBSIZE_SHIFT 0
+#define OMAP44XX_REG_RDBSIZE_MASK (0x7 << 0)
+
+/* SDRAM_REF_CTRL */
+#define OMAP44XX_REG_INITREF_DIS_SHIFT 31
+#define OMAP44XX_REG_INITREF_DIS_MASK (1 << 31)
+#define OMAP44XX_REG_SRT_SHIFT 29
+#define OMAP44XX_REG_SRT_MASK (1 << 29)
+#define OMAP44XX_REG_ASR_SHIFT 28
+#define OMAP44XX_REG_ASR_MASK (1 << 28)
+#define OMAP44XX_REG_PASR_SHIFT 24
+#define OMAP44XX_REG_PASR_MASK (0x7 << 24)
+#define OMAP44XX_REG_REFRESH_RATE_SHIFT 0
+#define OMAP44XX_REG_REFRESH_RATE_MASK (0xffff << 0)
+
+/* SDRAM_REF_CTRL_SHDW */
+#define OMAP44XX_REG_REFRESH_RATE_SHDW_SHIFT 0
+#define OMAP44XX_REG_REFRESH_RATE_SHDW_MASK (0xffff << 0)
+
+/* SDRAM_TIM_1 */
+#define OMAP44XX_REG_T_RP_SHIFT 25
+#define OMAP44XX_REG_T_RP_MASK (0xf << 25)
+#define OMAP44XX_REG_T_RCD_SHIFT 21
+#define OMAP44XX_REG_T_RCD_MASK (0xf << 21)
+#define OMAP44XX_REG_T_WR_SHIFT 17
+#define OMAP44XX_REG_T_WR_MASK (0xf << 17)
+#define OMAP44XX_REG_T_RAS_SHIFT 12
+#define OMAP44XX_REG_T_RAS_MASK (0x1f << 12)
+#define OMAP44XX_REG_T_RC_SHIFT 6
+#define OMAP44XX_REG_T_RC_MASK (0x3f << 6)
+#define OMAP44XX_REG_T_RRD_SHIFT 3
+#define OMAP44XX_REG_T_RRD_MASK (0x7 << 3)
+#define OMAP44XX_REG_T_WTR_SHIFT 0
+#define OMAP44XX_REG_T_WTR_MASK (0x7 << 0)
+
+/* SDRAM_TIM_1_SHDW */
+#define OMAP44XX_REG_T_RP_SHDW_SHIFT 25
+#define OMAP44XX_REG_T_RP_SHDW_MASK (0xf << 25)
+#define OMAP44XX_REG_T_RCD_SHDW_SHIFT 21
+#define OMAP44XX_REG_T_RCD_SHDW_MASK (0xf << 21)
+#define OMAP44XX_REG_T_WR_SHDW_SHIFT 17
+#define OMAP44XX_REG_T_WR_SHDW_MASK (0xf << 17)
+#define OMAP44XX_REG_T_RAS_SHDW_SHIFT 12
+#define OMAP44XX_REG_T_RAS_SHDW_MASK (0x1f << 12)
+#define OMAP44XX_REG_T_RC_SHDW_SHIFT 6
+#define OMAP44XX_REG_T_RC_SHDW_MASK (0x3f << 6)
+#define OMAP44XX_REG_T_RRD_SHDW_SHIFT 3
+#define OMAP44XX_REG_T_RRD_SHDW_MASK (0x7 << 3)
+#define OMAP44XX_REG_T_WTR_SHDW_SHIFT 0
+#define OMAP44XX_REG_T_WTR_SHDW_MASK (0x7 << 0)
+
+/* SDRAM_TIM_2 */
+#define OMAP44XX_REG_T_XP_SHIFT 28
+#define OMAP44XX_REG_T_XP_MASK (0x7 << 28)
+#define OMAP44XX_REG_T_ODT_SHIFT 25
+#define OMAP44XX_REG_T_ODT_MASK (0x7 << 25)
+#define OMAP44XX_REG_T_XSNR_SHIFT 16
+#define OMAP44XX_REG_T_XSNR_MASK (0x1ff << 16)
+#define OMAP44XX_REG_T_XSRD_SHIFT 6
+#define OMAP44XX_REG_T_XSRD_MASK (0x3ff << 6)
+#define OMAP44XX_REG_T_RTP_SHIFT 3
+#define OMAP44XX_REG_T_RTP_MASK (0x7 << 3)
+#define OMAP44XX_REG_T_CKE_SHIFT 0
+#define OMAP44XX_REG_T_CKE_MASK (0x7 << 0)
+
+/* SDRAM_TIM_2_SHDW */
+#define OMAP44XX_REG_T_XP_SHDW_SHIFT 28
+#define OMAP44XX_REG_T_XP_SHDW_MASK (0x7 << 28)
+#define OMAP44XX_REG_T_ODT_SHDW_SHIFT 25
+#define OMAP44XX_REG_T_ODT_SHDW_MASK (0x7 << 25)
+#define OMAP44XX_REG_T_XSNR_SHDW_SHIFT 16
+#define OMAP44XX_REG_T_XSNR_SHDW_MASK (0x1ff << 16)
+#define OMAP44XX_REG_T_XSRD_SHDW_SHIFT 6
+#define OMAP44XX_REG_T_XSRD_SHDW_MASK (0x3ff << 6)
+#define OMAP44XX_REG_T_RTP_SHDW_SHIFT 3
+#define OMAP44XX_REG_T_RTP_SHDW_MASK (0x7 << 3)
+#define OMAP44XX_REG_T_CKE_SHDW_SHIFT 0
+#define OMAP44XX_REG_T_CKE_SHDW_MASK (0x7 << 0)
+
+/* SDRAM_TIM_3 */
+#define OMAP44XX_REG_T_CKESR_SHIFT 21
+#define OMAP44XX_REG_T_CKESR_MASK (0x7 << 21)
+#define OMAP44XX_REG_ZQ_ZQCS_SHIFT 15
+#define OMAP44XX_REG_ZQ_ZQCS_MASK (0x3f << 15)
+#define OMAP44XX_REG_T_TDQSCKMAX_SHIFT 13
+#define OMAP44XX_REG_T_TDQSCKMAX_MASK (0x3 << 13)
+#define OMAP44XX_REG_T_RFC_SHIFT 4
+#define OMAP44XX_REG_T_RFC_MASK (0x1ff << 4)
+#define OMAP44XX_REG_T_RAS_MAX_SHIFT 0
+#define OMAP44XX_REG_T_RAS_MAX_MASK (0xf << 0)
+
+/* SDRAM_TIM_3_SHDW */
+#define OMAP44XX_REG_T_CKESR_SHDW_SHIFT 21
+#define OMAP44XX_REG_T_CKESR_SHDW_MASK (0x7 << 21)
+#define OMAP44XX_REG_ZQ_ZQCS_SHDW_SHIFT 15
+#define OMAP44XX_REG_ZQ_ZQCS_SHDW_MASK (0x3f << 15)
+#define OMAP44XX_REG_T_TDQSCKMAX_SHDW_SHIFT 13
+#define OMAP44XX_REG_T_TDQSCKMAX_SHDW_MASK (0x3 << 13)
+#define OMAP44XX_REG_T_RFC_SHDW_SHIFT 4
+#define OMAP44XX_REG_T_RFC_SHDW_MASK (0x1ff << 4)
+#define OMAP44XX_REG_T_RAS_MAX_SHDW_SHIFT 0
+#define OMAP44XX_REG_T_RAS_MAX_SHDW_MASK (0xf << 0)
+
+/* LPDDR2_NVM_TIM */
+#define OMAP44XX_REG_NVM_T_XP_SHIFT 28
+#define OMAP44XX_REG_NVM_T_XP_MASK (0x7 << 28)
+#define OMAP44XX_REG_NVM_T_WTR_SHIFT 24
+#define OMAP44XX_REG_NVM_T_WTR_MASK (0x7 << 24)
+#define OMAP44XX_REG_NVM_T_RP_SHIFT 20
+#define OMAP44XX_REG_NVM_T_RP_MASK (0xf << 20)
+#define OMAP44XX_REG_NVM_T_WRA_SHIFT 16
+#define OMAP44XX_REG_NVM_T_WRA_MASK (0xf << 16)
+#define OMAP44XX_REG_NVM_T_RRD_SHIFT 8
+#define OMAP44XX_REG_NVM_T_RRD_MASK (0xff << 8)
+#define OMAP44XX_REG_NVM_T_RCDMIN_SHIFT 0
+#define OMAP44XX_REG_NVM_T_RCDMIN_MASK (0xff << 0)
+
+/* LPDDR2_NVM_TIM_SHDW */
+#define OMAP44XX_REG_NVM_T_XP_SHDW_SHIFT 28
+#define OMAP44XX_REG_NVM_T_XP_SHDW_MASK (0x7 << 28)
+#define OMAP44XX_REG_NVM_T_WTR_SHDW_SHIFT 24
+#define OMAP44XX_REG_NVM_T_WTR_SHDW_MASK (0x7 << 24)
+#define OMAP44XX_REG_NVM_T_RP_SHDW_SHIFT 20
+#define OMAP44XX_REG_NVM_T_RP_SHDW_MASK (0xf << 20)
+#define OMAP44XX_REG_NVM_T_WRA_SHDW_SHIFT 16
+#define OMAP44XX_REG_NVM_T_WRA_SHDW_MASK (0xf << 16)
+#define OMAP44XX_REG_NVM_T_RRD_SHDW_SHIFT 8
+#define OMAP44XX_REG_NVM_T_RRD_SHDW_MASK (0xff << 8)
+#define OMAP44XX_REG_NVM_T_RCDMIN_SHDW_SHIFT 0
+#define OMAP44XX_REG_NVM_T_RCDMIN_SHDW_MASK (0xff << 0)
+
+/* PWR_MGMT_CTRL */
+#define OMAP44XX_REG_IDLEMODE_SHIFT 30
+#define OMAP44XX_REG_IDLEMODE_MASK (0x3 << 30)
+#define OMAP44XX_REG_PD_TIM_SHIFT 12
+#define OMAP44XX_REG_PD_TIM_MASK (0xf << 12)
+#define OMAP44XX_REG_DPD_EN_SHIFT 11
+#define OMAP44XX_REG_DPD_EN_MASK (1 << 11)
+#define OMAP44XX_REG_LP_MODE_SHIFT 8
+#define OMAP44XX_REG_LP_MODE_MASK (0x7 << 8)
+#define OMAP44XX_REG_SR_TIM_SHIFT 4
+#define OMAP44XX_REG_SR_TIM_MASK (0xf << 4)
+#define OMAP44XX_REG_CS_TIM_SHIFT 0
+#define OMAP44XX_REG_CS_TIM_MASK (0xf << 0)
+
+/* PWR_MGMT_CTRL_SHDW */
+#define OMAP44XX_REG_PD_TIM_SHDW_SHIFT 8
+#define OMAP44XX_REG_PD_TIM_SHDW_MASK (0xf << 8)
+#define OMAP44XX_REG_SR_TIM_SHDW_SHIFT 4
+#define OMAP44XX_REG_SR_TIM_SHDW_MASK (0xf << 4)
+#define OMAP44XX_REG_CS_TIM_SHDW_SHIFT 0
+#define OMAP44XX_REG_CS_TIM_SHDW_MASK (0xf << 0)
+
+/* LPDDR2_MODE_REG_DATA */
+#define OMAP44XX_REG_VALUE_0_SHIFT 0
+#define OMAP44XX_REG_VALUE_0_MASK (0x7f << 0)
+
+/* LPDDR2_MODE_REG_CFG */
+#define OMAP44XX_REG_CS_SHIFT 31
+#define OMAP44XX_REG_CS_MASK (1 << 31)
+#define OMAP44XX_REG_REFRESH_EN_SHIFT 30
+#define OMAP44XX_REG_REFRESH_EN_MASK (1 << 30)
+#define OMAP44XX_REG_ADDRESS_SHIFT 0
+#define OMAP44XX_REG_ADDRESS_MASK (0xff << 0)
+
+/* OCP_CONFIG */
+#define OMAP44XX_REG_SYS_THRESH_MAX_SHIFT 24
+#define OMAP44XX_REG_SYS_THRESH_MAX_MASK (0xf << 24)
+#define OMAP44XX_REG_LL_THRESH_MAX_SHIFT 16
+#define OMAP44XX_REG_LL_THRESH_MAX_MASK (0xf << 16)
+#define OMAP44XX_REG_PR_OLD_COUNT_SHIFT 0
+#define OMAP44XX_REG_PR_OLD_COUNT_MASK (0xff << 0)
+
+/* OCP_CFG_VAL_1 */
+#define OMAP44XX_REG_SYS_BUS_WIDTH_SHIFT 30
+#define OMAP44XX_REG_SYS_BUS_WIDTH_MASK (0x3 << 30)
+#define OMAP44XX_REG_LL_BUS_WIDTH_SHIFT 28
+#define OMAP44XX_REG_LL_BUS_WIDTH_MASK (0x3 << 28)
+#define OMAP44XX_REG_WR_FIFO_DEPTH_SHIFT 8
+#define OMAP44XX_REG_WR_FIFO_DEPTH_MASK (0xff << 8)
+#define OMAP44XX_REG_CMD_FIFO_DEPTH_SHIFT 0
+#define OMAP44XX_REG_CMD_FIFO_DEPTH_MASK (0xff << 0)
+
+/* OCP_CFG_VAL_2 */
+#define OMAP44XX_REG_RREG_FIFO_DEPTH_SHIFT 16
+#define OMAP44XX_REG_RREG_FIFO_DEPTH_MASK (0xff << 16)
+#define OMAP44XX_REG_RSD_FIFO_DEPTH_SHIFT 8
+#define OMAP44XX_REG_RSD_FIFO_DEPTH_MASK (0xff << 8)
+#define OMAP44XX_REG_RCMD_FIFO_DEPTH_SHIFT 0
+#define OMAP44XX_REG_RCMD_FIFO_DEPTH_MASK (0xff << 0)
+
+/* IODFT_TLGC */
+#define OMAP44XX_REG_TLEC_SHIFT 16
+#define OMAP44XX_REG_TLEC_MASK (0xffff << 16)
+#define OMAP44XX_REG_MT_SHIFT 14
+#define OMAP44XX_REG_MT_MASK (1 << 14)
+#define OMAP44XX_REG_ACT_CAP_EN_SHIFT 13
+#define OMAP44XX_REG_ACT_CAP_EN_MASK (1 << 13)
+#define OMAP44XX_REG_OPG_LD_SHIFT 12
+#define OMAP44XX_REG_OPG_LD_MASK (1 << 12)
+#define OMAP44XX_REG_RESET_PHY_SHIFT 10
+#define OMAP44XX_REG_RESET_PHY_MASK (1 << 10)
+#define OMAP44XX_REG_MMS_SHIFT 8
+#define OMAP44XX_REG_MMS_MASK (1 << 8)
+#define OMAP44XX_REG_MC_SHIFT 4
+#define OMAP44XX_REG_MC_MASK (0x3 << 4)
+#define OMAP44XX_REG_PC_SHIFT 1
+#define OMAP44XX_REG_PC_MASK (0x7 << 1)
+#define OMAP44XX_REG_TM_SHIFT 0
+#define OMAP44XX_REG_TM_MASK (1 << 0)
+
+/* IODFT_CTRL_MISR_RSLT */
+#define OMAP44XX_REG_DQM_TLMR_SHIFT 16
+#define OMAP44XX_REG_DQM_TLMR_MASK (0x3ff << 16)
+#define OMAP44XX_REG_CTL_TLMR_SHIFT 0
+#define OMAP44XX_REG_CTL_TLMR_MASK (0x7ff << 0)
+
+/* IODFT_ADDR_MISR_RSLT */
+#define OMAP44XX_REG_ADDR_TLMR_SHIFT 0
+#define OMAP44XX_REG_ADDR_TLMR_MASK (0x1fffff << 0)
+
+/* IODFT_DATA_MISR_RSLT_1 */
+#define OMAP44XX_REG_DATA_TLMR_31_0_SHIFT 0
+#define OMAP44XX_REG_DATA_TLMR_31_0_MASK (0xffffffff << 0)
+
+/* IODFT_DATA_MISR_RSLT_2 */
+#define OMAP44XX_REG_DATA_TLMR_63_32_SHIFT 0
+#define OMAP44XX_REG_DATA_TLMR_63_32_MASK (0xffffffff << 0)
+
+/* IODFT_DATA_MISR_RSLT_3 */
+#define OMAP44XX_REG_DATA_TLMR_66_64_SHIFT 0
+#define OMAP44XX_REG_DATA_TLMR_66_64_MASK (0x7 << 0)
+
+/* PERF_CNT_1 */
+#define OMAP44XX_REG_COUNTER1_SHIFT 0
+#define OMAP44XX_REG_COUNTER1_MASK (0xffffffff << 0)
+
+/* PERF_CNT_2 */
+#define OMAP44XX_REG_COUNTER2_SHIFT 0
+#define OMAP44XX_REG_COUNTER2_MASK (0xffffffff << 0)
+
+/* PERF_CNT_CFG */
+#define OMAP44XX_REG_CNTR2_MCONNID_EN_SHIFT 31
+#define OMAP44XX_REG_CNTR2_MCONNID_EN_MASK (1 << 31)
+#define OMAP44XX_REG_CNTR2_REGION_EN_SHIFT 30
+#define OMAP44XX_REG_CNTR2_REGION_EN_MASK (1 << 30)
+#define OMAP44XX_REG_CNTR2_CFG_SHIFT 16
+#define OMAP44XX_REG_CNTR2_CFG_MASK (0xf << 16)
+#define OMAP44XX_REG_CNTR1_MCONNID_EN_SHIFT 15
+#define OMAP44XX_REG_CNTR1_MCONNID_EN_MASK (1 << 15)
+#define OMAP44XX_REG_CNTR1_REGION_EN_SHIFT 14
+#define OMAP44XX_REG_CNTR1_REGION_EN_MASK (1 << 14)
+#define OMAP44XX_REG_CNTR1_CFG_SHIFT 0
+#define OMAP44XX_REG_CNTR1_CFG_MASK (0xf << 0)
+
+/* PERF_CNT_SEL */
+#define OMAP44XX_REG_MCONNID2_SHIFT 24
+#define OMAP44XX_REG_MCONNID2_MASK (0xff << 24)
+#define OMAP44XX_REG_REGION_SEL2_SHIFT 16
+#define OMAP44XX_REG_REGION_SEL2_MASK (0x3 << 16)
+#define OMAP44XX_REG_MCONNID1_SHIFT 8
+#define OMAP44XX_REG_MCONNID1_MASK (0xff << 8)
+#define OMAP44XX_REG_REGION_SEL1_SHIFT 0
+#define OMAP44XX_REG_REGION_SEL1_MASK (0x3 << 0)
+
+/* PERF_CNT_TIM */
+#define OMAP44XX_REG_TOTAL_TIME_SHIFT 0
+#define OMAP44XX_REG_TOTAL_TIME_MASK (0xffffffff << 0)
+
+/* READ_IDLE_CTRL */
+#define OMAP44XX_REG_READ_IDLE_LEN_SHIFT 16
+#define OMAP44XX_REG_READ_IDLE_LEN_MASK (0xf << 16)
+#define OMAP44XX_REG_READ_IDLE_INTERVAL_SHIFT 0
+#define OMAP44XX_REG_READ_IDLE_INTERVAL_MASK (0x1ff << 0)
+
+/* READ_IDLE_CTRL_SHDW */
+#define OMAP44XX_REG_READ_IDLE_LEN_SHDW_SHIFT 16
+#define OMAP44XX_REG_READ_IDLE_LEN_SHDW_MASK (0xf << 16)
+#define OMAP44XX_REG_READ_IDLE_INTERVAL_SHDW_SHIFT 0
+#define OMAP44XX_REG_READ_IDLE_INTERVAL_SHDW_MASK (0x1ff << 0)
+
+/* IRQ_EOI */
+#define OMAP44XX_REG_EOI_SHIFT 0
+#define OMAP44XX_REG_EOI_MASK (1 << 0)
+
+/* IRQSTATUS_RAW_SYS */
+#define OMAP44XX_REG_DNV_SYS_SHIFT 2
+#define OMAP44XX_REG_DNV_SYS_MASK (1 << 2)
+#define OMAP44XX_REG_TA_SYS_SHIFT 1
+#define OMAP44XX_REG_TA_SYS_MASK (1 << 1)
+#define OMAP44XX_REG_ERR_SYS_SHIFT 0
+#define OMAP44XX_REG_ERR_SYS_MASK (1 << 0)
+
+/* IRQSTATUS_RAW_LL */
+#define OMAP44XX_REG_DNV_LL_SHIFT 2
+#define OMAP44XX_REG_DNV_LL_MASK (1 << 2)
+#define OMAP44XX_REG_TA_LL_SHIFT 1
+#define OMAP44XX_REG_TA_LL_MASK (1 << 1)
+#define OMAP44XX_REG_ERR_LL_SHIFT 0
+#define OMAP44XX_REG_ERR_LL_MASK (1 << 0)
+
+/* IRQSTATUS_SYS */
+
+/* IRQSTATUS_LL */
+
+/* IRQENABLE_SET_SYS */
+#define OMAP44XX_REG_EN_DNV_SYS_SHIFT 2
+#define OMAP44XX_REG_EN_DNV_SYS_MASK (1 << 2)
+#define OMAP44XX_REG_EN_TA_SYS_SHIFT 1
+#define OMAP44XX_REG_EN_TA_SYS_MASK (1 << 1)
+#define OMAP44XX_REG_EN_ERR_SYS_SHIFT 0
+#define OMAP44XX_REG_EN_ERR_SYS_MASK (1 << 0)
+
+/* IRQENABLE_SET_LL */
+#define OMAP44XX_REG_EN_DNV_LL_SHIFT 2
+#define OMAP44XX_REG_EN_DNV_LL_MASK (1 << 2)
+#define OMAP44XX_REG_EN_TA_LL_SHIFT 1
+#define OMAP44XX_REG_EN_TA_LL_MASK (1 << 1)
+#define OMAP44XX_REG_EN_ERR_LL_SHIFT 0
+#define OMAP44XX_REG_EN_ERR_LL_MASK (1 << 0)
+
+/* IRQENABLE_CLR_SYS */
+
+/* IRQENABLE_CLR_LL */
+
+/* ZQ_CONFIG */
+#define OMAP44XX_REG_ZQ_CS1EN_SHIFT 31
+#define OMAP44XX_REG_ZQ_CS1EN_MASK (1 << 31)
+#define OMAP44XX_REG_ZQ_CS0EN_SHIFT 30
+#define OMAP44XX_REG_ZQ_CS0EN_MASK (1 << 30)
+#define OMAP44XX_REG_ZQ_DUALCALEN_SHIFT 29
+#define OMAP44XX_REG_ZQ_DUALCALEN_MASK (1 << 29)
+#define OMAP44XX_REG_ZQ_SFEXITEN_SHIFT 28
+#define OMAP44XX_REG_ZQ_SFEXITEN_MASK (1 << 28)
+#define OMAP44XX_REG_ZQ_ZQINIT_MULT_SHIFT 18
+#define OMAP44XX_REG_ZQ_ZQINIT_MULT_MASK (0x3 << 18)
+#define OMAP44XX_REG_ZQ_ZQCL_MULT_SHIFT 16
+#define OMAP44XX_REG_ZQ_ZQCL_MULT_MASK (0x3 << 16)
+#define OMAP44XX_REG_ZQ_REFINTERVAL_SHIFT 0
+#define OMAP44XX_REG_ZQ_REFINTERVAL_MASK (0xffff << 0)
+
+/* TEMP_ALERT_CONFIG */
+#define OMAP44XX_REG_TA_CS1EN_SHIFT 31
+#define OMAP44XX_REG_TA_CS1EN_MASK (1 << 31)
+#define OMAP44XX_REG_TA_CS0EN_SHIFT 30
+#define OMAP44XX_REG_TA_CS0EN_MASK (1 << 30)
+#define OMAP44XX_REG_TA_SFEXITEN_SHIFT 28
+#define OMAP44XX_REG_TA_SFEXITEN_MASK (1 << 28)
+#define OMAP44XX_REG_TA_DEVWDT_SHIFT 26
+#define OMAP44XX_REG_TA_DEVWDT_MASK (0x3 << 26)
+#define OMAP44XX_REG_TA_DEVCNT_SHIFT 24
+#define OMAP44XX_REG_TA_DEVCNT_MASK (0x3 << 24)
+#define OMAP44XX_REG_TA_REFINTERVAL_SHIFT 0
+#define OMAP44XX_REG_TA_REFINTERVAL_MASK (0x3fffff << 0)
+
+/* OCP_ERR_LOG */
+#define OMAP44XX_REG_MADDRSPACE_SHIFT 14
+#define OMAP44XX_REG_MADDRSPACE_MASK (0x3 << 14)
+#define OMAP44XX_REG_MBURSTSEQ_SHIFT 11
+#define OMAP44XX_REG_MBURSTSEQ_MASK (0x7 << 11)
+#define OMAP44XX_REG_MCMD_SHIFT 8
+#define OMAP44XX_REG_MCMD_MASK (0x7 << 8)
+#define OMAP44XX_REG_MCONNID_SHIFT 0
+#define OMAP44XX_REG_MCONNID_MASK (0xff << 0)
+
+/* DDR_PHY_CTRL_1 */
+#define OMAP44XX_REG_DDR_PHY_CTRL_1_SHIFT 4
+#define OMAP44XX_REG_DDR_PHY_CTRL_1_MASK (0xfffffff << 4)
+#define OMAP44XX_REG_READ_LATENCY_SHIFT 0
+#define OMAP44XX_REG_READ_LATENCY_MASK (0xf << 0)
+#define OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_SHIFT 4
+#define OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_MASK (0xFF << 4)
+#define OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHIFT 12
+#define OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_MASK (0xFFFFF << 12)
+
+/* DDR_PHY_CTRL_1_SHDW */
+#define OMAP44XX_REG_DDR_PHY_CTRL_1_SHDW_SHIFT 4
+#define OMAP44XX_REG_DDR_PHY_CTRL_1_SHDW_MASK (0xfffffff << 4)
+#define OMAP44XX_REG_READ_LATENCY_SHDW_SHIFT 0
+#define OMAP44XX_REG_READ_LATENCY_SHDW_MASK (0xf << 0)
+#define OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_SHDW_SHIFT 4
+#define OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_SHDW_MASK (0xFF << 4)
+#define OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHDW_SHIFT 12
+#define OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHDW_MASK (0xFFFFF << 12)
+
+/* DDR_PHY_CTRL_2 */
+#define OMAP44XX_REG_DDR_PHY_CTRL_2_SHIFT 0
+#define OMAP44XX_REG_DDR_PHY_CTRL_2_MASK (0xffffffff << 0)
+
+/* DMM */
+#define OMAP44XX_DMM_LISA_MAP_BASE 0x4E000040
+
+/* DMM_LISA_MAP */
+#define OMAP44XX_SYS_ADDR_SHIFT 24
+#define OMAP44XX_SYS_ADDR_MASK (0xff << 24)
+#define OMAP44XX_SYS_SIZE_SHIFT 20
+#define OMAP44XX_SYS_SIZE_MASK (0x7 << 20)
+#define OMAP44XX_SDRC_INTL_SHIFT 18
+#define OMAP44XX_SDRC_INTL_MASK (0x3 << 18)
+#define OMAP44XX_SDRC_ADDRSPC_SHIFT 16
+#define OMAP44XX_SDRC_ADDRSPC_MASK (0x3 << 16)
+#define OMAP44XX_SDRC_MAP_SHIFT 8
+#define OMAP44XX_SDRC_MAP_MASK (0x3 << 8)
+#define OMAP44XX_SDRC_ADDR_SHIFT 0
+#define OMAP44XX_SDRC_ADDR_MASK (0xff << 0)
+
+/* DMM_LISA_MAP fields */
+#define DMM_SDRC_MAP_UNMAPPED 0
+#define DMM_SDRC_MAP_EMIF1_ONLY 1
+#define DMM_SDRC_MAP_EMIF2_ONLY 2
+#define DMM_SDRC_MAP_EMIF1_AND_EMIF2 3
+
+#define DMM_SDRC_INTL_NONE 0
+#define DMM_SDRC_INTL_128B 1
+#define DMM_SDRC_INTL_256B 2
+#define DMM_SDRC_INTL_512 3
+
+#define DMM_SDRC_ADDR_SPC_SDRAM 0
+#define DMM_SDRC_ADDR_SPC_NVM 1
+#define DMM_SDRC_ADDR_SPC_INVALID 2
+
+#define DMM_LISA_MAP_INTERLEAVED_BASE_VAL (\
+ (DMM_SDRC_MAP_EMIF1_AND_EMIF2 << OMAP44XX_SDRC_MAP_SHIFT) |\
+ (DMM_SDRC_ADDR_SPC_SDRAM << OMAP44XX_SDRC_ADDRSPC_SHIFT) |\
+ (DMM_SDRC_INTL_128B << OMAP44XX_SDRC_INTL_SHIFT) |\
+ (CONFIG_SYS_SDRAM_BASE << OMAP44XX_SYS_ADDR_SHIFT))
+
+#define DMM_LISA_MAP_EMIF1_ONLY_BASE_VAL (\
+ (DMM_SDRC_MAP_EMIF1_ONLY << OMAP44XX_SDRC_MAP_SHIFT)|\
+ (DMM_SDRC_ADDR_SPC_SDRAM << OMAP44XX_SDRC_ADDRSPC_SHIFT)|\
+ (DMM_SDRC_INTL_NONE << OMAP44XX_SDRC_INTL_SHIFT))
+
+#define DMM_LISA_MAP_EMIF2_ONLY_BASE_VAL (\
+ (DMM_SDRC_MAP_EMIF2_ONLY << OMAP44XX_SDRC_MAP_SHIFT)|\
+ (DMM_SDRC_ADDR_SPC_SDRAM << OMAP44XX_SDRC_ADDRSPC_SHIFT)|\
+ (DMM_SDRC_INTL_NONE << OMAP44XX_SDRC_INTL_SHIFT))
+
+/* Trap for invalid TILER PAT entries */
+#define DMM_LISA_MAP_0_INVAL_ADDR_TRAP (\
+ (0 << OMAP44XX_SDRC_ADDR_SHIFT) |\
+ (DMM_SDRC_MAP_EMIF1_ONLY << OMAP44XX_SDRC_MAP_SHIFT)|\
+ (DMM_SDRC_ADDR_SPC_INVALID << OMAP44XX_SDRC_ADDRSPC_SHIFT)|\
+ (DMM_SDRC_INTL_NONE << OMAP44XX_SDRC_INTL_SHIFT)|\
+ (0xFF << OMAP44XX_SYS_ADDR_SHIFT))
+
+
+/* Reg mapping structure */
+struct emif_reg_struct {
+ u32 emif_mod_id_rev;
+ u32 emif_status;
+ u32 emif_sdram_config;
+ u32 emif_lpddr2_nvm_config;
+ u32 emif_sdram_ref_ctrl;
+ u32 emif_sdram_ref_ctrl_shdw;
+ u32 emif_sdram_tim_1;
+ u32 emif_sdram_tim_1_shdw;
+ u32 emif_sdram_tim_2;
+ u32 emif_sdram_tim_2_shdw;
+ u32 emif_sdram_tim_3;
+ u32 emif_sdram_tim_3_shdw;
+ u32 emif_lpddr2_nvm_tim;
+ u32 emif_lpddr2_nvm_tim_shdw;
+ u32 emif_pwr_mgmt_ctrl;
+ u32 emif_pwr_mgmt_ctrl_shdw;
+ u32 emif_lpddr2_mode_reg_data;
+ u32 padding1[1];
+ u32 emif_lpddr2_mode_reg_data_es2;
+ u32 padding11[1];
+ u32 emif_lpddr2_mode_reg_cfg;
+ u32 emif_l3_config;
+ u32 emif_l3_cfg_val_1;
+ u32 emif_l3_cfg_val_2;
+ u32 emif_iodft_tlgc;
+ u32 padding2[7];
+ u32 emif_perf_cnt_1;
+ u32 emif_perf_cnt_2;
+ u32 emif_perf_cnt_cfg;
+ u32 emif_perf_cnt_sel;
+ u32 emif_perf_cnt_tim;
+ u32 padding3;
+ u32 emif_read_idlectrl;
+ u32 emif_read_idlectrl_shdw;
+ u32 padding4;
+ u32 emif_irqstatus_raw_sys;
+ u32 emif_irqstatus_raw_ll;
+ u32 emif_irqstatus_sys;
+ u32 emif_irqstatus_ll;
+ u32 emif_irqenable_set_sys;
+ u32 emif_irqenable_set_ll;
+ u32 emif_irqenable_clr_sys;
+ u32 emif_irqenable_clr_ll;
+ u32 padding5;
+ u32 emif_zq_config;
+ u32 emif_temp_alert_config;
+ u32 emif_l3_err_log;
+ u32 padding6[4];
+ u32 emif_ddr_phy_ctrl_1;
+ u32 emif_ddr_phy_ctrl_1_shdw;
+ u32 emif_ddr_phy_ctrl_2;
+};
+
+struct dmm_lisa_map_regs {
+ u32 dmm_lisa_map_0;
+ u32 dmm_lisa_map_1;
+ u32 dmm_lisa_map_2;
+ u32 dmm_lisa_map_3;
+};
+
+struct control_lpddr2io_regs {
+ u32 control_lpddr2io1_0;
+ u32 control_lpddr2io1_1;
+ u32 control_lpddr2io1_2;
+ u32 control_lpddr2io1_3;
+ u32 control_lpddr2io2_0;
+ u32 control_lpddr2io2_1;
+ u32 control_lpddr2io2_2;
+ u32 control_lpddr2io2_3;
+};
+
+#define CS0 0
+#define CS1 1
+/* The maximum frequency at which the LPDDR2 interface can operate in Hz*/
+#define MAX_LPDDR2_FREQ 400000000 /* 400 MHz */
+
+/*
+ * The period of DDR clk is represented as numerator and denominator for
+ * better accuracy in integer based calculations. However, if the numerator
+ * and denominator are very huge there may be chances of overflow in
+ * calculations. So, as a trade-off keep denominator(and consequently
+ * numerator) within a limit sacrificing some accuracy - but not much
+ * If denominator and numerator are already small (such as at 400 MHz)
+ * no adjustment is needed
+ */
+#define EMIF_PERIOD_DEN_LIMIT 1000
+/*
+ * Maximum number of different frequencies supported by EMIF driver
+ * Determines the number of entries in the pointer array for register
+ * cache
+ */
+#define EMIF_MAX_NUM_FREQUENCIES 6
+/*
+ * Indices into the Addressing Table array.
+ * One entry each for all the different types of devices with different
+ * addressing schemes
+ */
+#define ADDR_TABLE_INDEX64M 0
+#define ADDR_TABLE_INDEX128M 1
+#define ADDR_TABLE_INDEX256M 2
+#define ADDR_TABLE_INDEX512M 3
+#define ADDR_TABLE_INDEX1GS4 4
+#define ADDR_TABLE_INDEX2GS4 5
+#define ADDR_TABLE_INDEX4G 6
+#define ADDR_TABLE_INDEX8G 7
+#define ADDR_TABLE_INDEX1GS2 8
+#define ADDR_TABLE_INDEX2GS2 9
+#define ADDR_TABLE_INDEXMAX 10
+
+/* Number of Row bits */
+#define ROW_9 0
+#define ROW_10 1
+#define ROW_11 2
+#define ROW_12 3
+#define ROW_13 4
+#define ROW_14 5
+#define ROW_15 6
+#define ROW_16 7
+
+/* Number of Column bits */
+#define COL_8 0
+#define COL_9 1
+#define COL_10 2
+#define COL_11 3
+#define COL_7 4 /*Not supported by OMAP included for completeness */
+
+/* Number of Banks*/
+#define BANKS1 0
+#define BANKS2 1
+#define BANKS4 2
+#define BANKS8 3
+
+/* Refresh rate in micro seconds x 10 */
+#define T_REFI_15_6 156
+#define T_REFI_7_8 78
+#define T_REFI_3_9 39
+
+#define EBANK_CS1_DIS 0
+#define EBANK_CS1_EN 1
+
+/* Read Latency used by the device at reset */
+#define RL_BOOT 3
+/* Read Latency for the highest frequency you want to use */
+#define RL_FINAL 6
+
+/* Interleaving policies at EMIF level- between banks and Chip Selects */
+#define EMIF_INTERLEAVING_POLICY_MAX_INTERLEAVING 0
+#define EMIF_INTERLEAVING_POLICY_NO_BANK_INTERLEAVING 3
+
+/*
+ * Interleaving policy to be used
+ * Currently set to MAX interleaving for better performance
+ */
+#define EMIF_INTERLEAVING_POLICY EMIF_INTERLEAVING_POLICY_MAX_INTERLEAVING
+
+/* State of the core voltage:
+ * This is important for some parameters such as read idle control and
+ * ZQ calibration timings. Timings are much stricter when voltage ramp
+ * is happening compared to when the voltage is stable.
+ * We need to calculate two sets of values for these parameters and use
+ * them accordingly
+ */
+#define LPDDR2_VOLTAGE_STABLE 0
+#define LPDDR2_VOLTAGE_RAMPING 1
+
+/* Length of the forced read idle period in terms of cycles */
+#define EMIF_REG_READ_IDLE_LEN_VAL 5
+
+/* Interval between forced 'read idles' */
+/* To be used when voltage is changed for DPS/DVFS - 1us */
+#define READ_IDLE_INTERVAL_DVFS (1*1000)
+/*
+ * To be used when voltage is not scaled except by Smart Reflex
+ * 50us - or maximum value will do
+ */
+#define READ_IDLE_INTERVAL_NORMAL (50*1000)
+
+
+/*
+ * Unless voltage is changing due to DVFS one ZQCS command every 50ms should
+ * be enough. This shoule be enough also in the case when voltage is changing
+ * due to smart-reflex.
+ */
+#define EMIF_ZQCS_INTERVAL_NORMAL_IN_US (50*1000)
+/*
+ * If voltage is changing due to DVFS ZQCS should be performed more
+ * often(every 50us)
+ */
+#define EMIF_ZQCS_INTERVAL_DVFS_IN_US 50
+
+/* The interval between ZQCL commands as a multiple of ZQCS interval */
+#define REG_ZQ_ZQCL_MULT 4
+/* The interval between ZQINIT commands as a multiple of ZQCL interval */
+#define REG_ZQ_ZQINIT_MULT 3
+/* Enable ZQ Calibration on exiting Self-refresh */
+#define REG_ZQ_SFEXITEN_ENABLE 1
+/*
+ * ZQ Calibration simultaneously on both chip-selects:
+ * Needs one calibration resistor per CS
+ * None of the boards that we know of have this capability
+ * So disabled by default
+ */
+#define REG_ZQ_DUALCALEN_DISABLE 0
+/*
+ * Enable ZQ Calibration by default on CS0. If we are asked to program
+ * the EMIF there will be something connected to CS0 for sure
+ */
+#define REG_ZQ_CS0EN_ENABLE 1
+
+/* EMIF_PWR_MGMT_CTRL register */
+/* Low power modes */
+#define LP_MODE_DISABLE 0
+#define LP_MODE_CLOCK_STOP 1
+#define LP_MODE_SELF_REFRESH 2
+#define LP_MODE_PWR_DN 3
+
+/* REG_DPD_EN */
+#define DPD_DISABLE 0
+#define DPD_ENABLE 1
+
+/* Maximum delay before Low Power Modes */
+#define REG_CS_TIM 0xF
+#define REG_SR_TIM 0xF
+#define REG_PD_TIM 0xF
+
+/* EMIF_PWR_MGMT_CTRL register */
+#define EMIF_PWR_MGMT_CTRL (\
+ ((REG_CS_TIM << OMAP44XX_REG_CS_TIM_SHIFT) & OMAP44XX_REG_CS_TIM_MASK)|\
+ ((REG_SR_TIM << OMAP44XX_REG_SR_TIM_SHIFT) & OMAP44XX_REG_SR_TIM_MASK)|\
+ ((REG_PD_TIM << OMAP44XX_REG_PD_TIM_SHIFT) & OMAP44XX_REG_PD_TIM_MASK)|\
+ ((REG_PD_TIM << OMAP44XX_REG_PD_TIM_SHIFT) & OMAP44XX_REG_PD_TIM_MASK)|\
+ ((LP_MODE_DISABLE << OMAP44XX_REG_LP_MODE_SHIFT)\
+ & OMAP44XX_REG_LP_MODE_MASK) |\
+ ((DPD_DISABLE << OMAP44XX_REG_DPD_EN_SHIFT)\
+ & OMAP44XX_REG_DPD_EN_MASK))\
+
+#define EMIF_PWR_MGMT_CTRL_SHDW (\
+ ((REG_CS_TIM << OMAP44XX_REG_CS_TIM_SHDW_SHIFT)\
+ & OMAP44XX_REG_CS_TIM_SHDW_MASK) |\
+ ((REG_SR_TIM << OMAP44XX_REG_SR_TIM_SHDW_SHIFT)\
+ & OMAP44XX_REG_SR_TIM_SHDW_MASK) |\
+ ((REG_PD_TIM << OMAP44XX_REG_PD_TIM_SHDW_SHIFT)\
+ & OMAP44XX_REG_PD_TIM_SHDW_MASK) |\
+ ((REG_PD_TIM << OMAP44XX_REG_PD_TIM_SHDW_SHIFT)\
+ & OMAP44XX_REG_PD_TIM_SHDW_MASK))
+
+/* EMIF_L3_CONFIG register value for ES1*/
+#define EMIF_L3_CONFIG_VAL_SYS_THRESH_0A_LL_THRESH_00 0x0A0000FF
+/*
+ * Value of bits 12:31 of DDR_PHY_CTRL_1 register:
+ * All these fields have magic values dependent on frequency and
+ * determined by PHY and DLL integration with EMIF. Setting the magic
+ * values suggested by hw team.
+ */
+#define EMIF_DDR_PHY_CTRL_1_BASE_VAL 0x049FF
+#define EMIF_DLL_SLAVE_DLY_CTRL_400_MHZ 0x41
+#define EMIF_DLL_SLAVE_DLY_CTRL_200_MHZ 0x80
+#define EMIF_DLL_SLAVE_DLY_CTRL_100_MHZ_AND_LESS 0xFF
+
+/*
+* MR1 value:
+* Burst length : 8
+* Burst type : sequential
+* Wrap : enabled
+* nWR : 3(default). EMIF does not do pre-charge.
+* : So nWR is don't care
+*/
+#define MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3 0x23
+
+/* MR2 */
+#define MR2_RL3_WL1 1
+#define MR2_RL4_WL2 2
+#define MR2_RL5_WL2 3
+#define MR2_RL6_WL3 4
+
+/* MR10: ZQ calibration codes */
+#define MR10_ZQ_ZQCS 0x56
+#define MR10_ZQ_ZQCL 0xAB
+#define MR10_ZQ_ZQINIT 0xFF
+#define MR10_ZQ_ZQRESET 0xC3
+
+/* TEMP_ALERT_CONFIG */
+#define TEMP_ALERT_POLL_INTERVAL_MS 360 /* for temp gradient - 5 C/s */
+#define TEMP_ALERT_CONFIG_DEVCT_1 0
+#define TEMP_ALERT_CONFIG_DEVWDT_32 2
+
+/* MR16 value: refresh full array(no partial array self refresh) */
+#define MR16_REF_FULL_ARRAY 0
+
+/* LPDDR2 IO regs */
+#define CONTROL_LPDDR2IO_SLEW_125PS_DRV8_PULL_DOWN 0x1C1C1C1C
+#define CONTROL_LPDDR2IO_SLEW_325PS_DRV8_GATE_KEEPER 0x9E9E9E9E
+
+/* CONTROL_EFUSE_2 */
+#define CONTROL_EFUSE_2_NMOS_PMOS_PTV_CODE_1 0x00ffc000
+
+/*
+ * Maximum number of entries we keep in our array of timing tables
+ * We need not keep all the speed bins supported by the device
+ * We need to keep timing tables for only the speed bins that we
+ * are interested in
+ */
+#define MAX_NUM_SPEEDBINS 4
+
+/* LPDDR2 Densities */
+#define LPDDR2_DENSITY_64Mb 0
+#define LPDDR2_DENSITY_128Mb 1
+#define LPDDR2_DENSITY_256Mb 2
+#define LPDDR2_DENSITY_512Mb 3
+#define LPDDR2_DENSITY_1Gb 4
+#define LPDDR2_DENSITY_2Gb 5
+#define LPDDR2_DENSITY_4Gb 6
+#define LPDDR2_DENSITY_8Gb 7
+#define LPDDR2_DENSITY_16Gb 8
+#define LPDDR2_DENSITY_32Gb 9
+
+/* LPDDR2 type */
+#define LPDDR2_TYPE_S4 0
+#define LPDDR2_TYPE_S2 1
+#define LPDDR2_TYPE_NVM 2
+
+/* LPDDR2 IO width */
+#define LPDDR2_IO_WIDTH_32 0
+#define LPDDR2_IO_WIDTH_16 1
+#define LPDDR2_IO_WIDTH_8 2
+
+/* Mode register numbers */
+#define LPDDR2_MR0 0
+#define LPDDR2_MR1 1
+#define LPDDR2_MR2 2
+#define LPDDR2_MR3 3
+#define LPDDR2_MR4 4
+#define LPDDR2_MR5 5
+#define LPDDR2_MR6 6
+#define LPDDR2_MR7 7
+#define LPDDR2_MR8 8
+#define LPDDR2_MR9 9
+#define LPDDR2_MR10 10
+#define LPDDR2_MR11 11
+#define LPDDR2_MR16 16
+#define LPDDR2_MR17 17
+#define LPDDR2_MR18 18
+
+/* MR0 */
+#define LPDDR2_MR0_DAI_SHIFT 0
+#define LPDDR2_MR0_DAI_MASK 1
+#define LPDDR2_MR0_DI_SHIFT 1
+#define LPDDR2_MR0_DI_MASK (1 << 1)
+#define LPDDR2_MR0_DNVI_SHIFT 2
+#define LPDDR2_MR0_DNVI_MASK (1 << 2)
+
+/* MR4 */
+#define MR4_SDRAM_REF_RATE_SHIFT 0
+#define MR4_SDRAM_REF_RATE_MASK 7
+#define MR4_TUF_SHIFT 7
+#define MR4_TUF_MASK (1 << 7)
+
+/* MR4 SDRAM Refresh Rate field values */
+#define SDRAM_TEMP_LESS_LOW_SHUTDOWN 0x0
+#define SDRAM_TEMP_LESS_4X_REFRESH_AND_TIMINGS 0x1
+#define SDRAM_TEMP_LESS_2X_REFRESH_AND_TIMINGS 0x2
+#define SDRAM_TEMP_NOMINAL 0x3
+#define SDRAM_TEMP_RESERVED_4 0x4
+#define SDRAM_TEMP_HIGH_DERATE_REFRESH 0x5
+#define SDRAM_TEMP_HIGH_DERATE_REFRESH_AND_TIMINGS 0x6
+#define SDRAM_TEMP_VERY_HIGH_SHUTDOWN 0x7
+
+#define LPDDR2_MANUFACTURER_SAMSUNG 1
+#define LPDDR2_MANUFACTURER_QIMONDA 2
+#define LPDDR2_MANUFACTURER_ELPIDA 3
+#define LPDDR2_MANUFACTURER_ETRON 4
+#define LPDDR2_MANUFACTURER_NANYA 5
+#define LPDDR2_MANUFACTURER_HYNIX 6
+#define LPDDR2_MANUFACTURER_MOSEL 7
+#define LPDDR2_MANUFACTURER_WINBOND 8
+#define LPDDR2_MANUFACTURER_ESMT 9
+#define LPDDR2_MANUFACTURER_SPANSION 11
+#define LPDDR2_MANUFACTURER_SST 12
+#define LPDDR2_MANUFACTURER_ZMOS 13
+#define LPDDR2_MANUFACTURER_INTEL 14
+#define LPDDR2_MANUFACTURER_NUMONYX 254
+#define LPDDR2_MANUFACTURER_MICRON 255
+
+/* MR8 register fields */
+#define MR8_TYPE_SHIFT 0x0
+#define MR8_TYPE_MASK 0x3
+#define MR8_DENSITY_SHIFT 0x2
+#define MR8_DENSITY_MASK (0xF << 0x2)
+#define MR8_IO_WIDTH_SHIFT 0x6
+#define MR8_IO_WIDTH_MASK (0x3 << 0x6)
+
+struct lpddr2_addressing {
+ u8 num_banks;
+ u8 t_REFI_us_x10;
+ u8 row_sz[2]; /* One entry each for x32 and x16 */
+ u8 col_sz[2]; /* One entry each for x32 and x16 */
+};
+
+/* Structure for timings from the DDR datasheet */
+struct lpddr2_ac_timings {
+ u32 max_freq;
+ u8 RL;
+ u8 tRPab;
+ u8 tRCD;
+ u8 tWR;
+ u8 tRASmin;
+ u8 tRRD;
+ u8 tWTRx2;
+ u8 tXSR;
+ u8 tXPx2;
+ u8 tRFCab;
+ u8 tRTPx2;
+ u8 tCKE;
+ u8 tCKESR;
+ u8 tZQCS;
+ u32 tZQCL;
+ u32 tZQINIT;
+ u8 tDQSCKMAXx2;
+ u8 tRASmax;
+ u8 tFAW;
+
+};
+
+/*
+ * Min tCK values for some of the parameters:
+ * If the calculated clock cycles for the respective parameter is
+ * less than the corresponding min tCK value, we need to set the min
+ * tCK value. This may happen at lower frequencies.
+ */
+struct lpddr2_min_tck {
+ u32 tRL;
+ u32 tRP_AB;
+ u32 tRCD;
+ u32 tWR;
+ u32 tRAS_MIN;
+ u32 tRRD;
+ u32 tWTR;
+ u32 tXP;
+ u32 tRTP;
+ u8 tCKE;
+ u32 tCKESR;
+ u32 tFAW;
+};
+
+struct lpddr2_device_details {
+ u8 type;
+ u8 density;
+ u8 io_width;
+ u8 manufacturer;
+};
+
+struct lpddr2_device_timings {
+ const struct lpddr2_ac_timings **ac_timings;
+ const struct lpddr2_min_tck *min_tck;
+};
+
+/* Details of the devices connected to each chip-select of an EMIF instance */
+struct emif_device_details {
+ const struct lpddr2_device_details *cs0_device_details;
+ const struct lpddr2_device_details *cs1_device_details;
+ const struct lpddr2_device_timings *cs0_device_timings;
+ const struct lpddr2_device_timings *cs1_device_timings;
+};
+
+/*
+ * Structure containing shadow of important registers in EMIF
+ * The calculation function fills in this structure to be later used for
+ * initialization and DVFS
+ */
+struct emif_regs {
+ u32 freq;
+ u32 sdram_config_init;
+ u32 sdram_config;
+ u32 ref_ctrl;
+ u32 sdram_tim1;
+ u32 sdram_tim2;
+ u32 sdram_tim3;
+ u32 read_idle_ctrl;
+ u32 zq_config;
+ u32 temp_alert_config;
+ u32 emif_ddr_phy_ctlr_1_init;
+ u32 emif_ddr_phy_ctlr_1;
+};
+
+/* assert macros */
+#if defined(DEBUG)
+#define emif_assert(c) ({ if (!(c)) for (;;); })
+#else
+#define emif_assert(c) ({ if (0) hang(); })
+#endif
+
+void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs);
+void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs);
+
+#endif
diff --git a/arch/arm/include/asm/arch-omap4/omap4.h b/arch/arm/include/asm/arch-omap4/omap4.h
index 76b06c2..c9c86e1 100644
--- a/arch/arm/include/asm/arch-omap4/omap4.h
+++ b/arch/arm/include/asm/arch-omap4/omap4.h
@@ -51,6 +51,11 @@
#define CONTROL_PADCONF_CORE (OMAP44XX_L4_CORE_BASE + 0x100000)
#define CONTROL_PADCONF_WKUP (OMAP44XX_L4_CORE_BASE + 0x31E000)
+/* LPDDR2 IO regs */
+#define LPDDR2_IO_REGS_BASE 0x4A100638
+
+#define CONTROL_EFUSE_2 0x4A100704
+
/* CONTROL_ID_CODE */
#define CONTROL_ID_CODE 0x4A002204
diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h
index f871921..7183a90 100644
--- a/arch/arm/include/asm/arch-omap4/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap4/sys_proto.h
@@ -49,6 +49,8 @@ void bypass_dpll(u32 *const base);
void freq_update_core(void);
u32 get_sys_clk_freq(void);
u32 omap4_ddr_clk(void);
+void sdram_init(void);
+u32 omap4_sdram_size(void);
static inline u32 running_from_sdram(void)
{
--
1.7.0.4
More information about the U-Boot
mailing list