[U-Boot] [PATCH v4 10/10] imx: ventana: switch to SPL

Tim Harvey
2014-06-02T23:13:27Z

Switch to an SPL image. The SPL for Ventana does the following:
- setup i2c and read the factory programmed EEPROM to obtain DRAM config
and model for board-specific calibration data
- configure DRAM per CPU/size/layout/devices/calibration
- load u-boot.img from NAND and jump to it

This allows for a single SPL+u-boot.img to replace the previous multiple boa
configurations.

Cc: Stefan Roese <sr@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Andy Ng <andreas2025@gmail.com>
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tom Rini <trini@ti.com>

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
v4:
- no changes

v3:
- re-ordered calls in board_init_f

v2:
- remove missing/unnecessary include
- revert mtdparts change
- use imx_ddr_size() which uses MMDC configuration to determine mem size
explicitly
- add support for MX6SOLO and MX6DUAL
- set CS0_END for 4GB so get_ram_size() works
- updated DDR3 calibration values for ventana boards
- fixed build issue - only compile spl if doing spl build
- fixed line length issue in README
- remove CONFIG_SPL* conditions and conditionally compile instead
- removed prints for CPU type and DRAM size/width - uboot will print these
later
- removed unused gw_ventana_spl.cfg
- use common read_eeprom function
- added MMC support to SPL

---
board/gateworks/gw_ventana/Makefile | 1 +
board/gateworks/gw_ventana/README | 92 +++---
board/gateworks/gw_ventana/gw_ventana.c | 10 +-
board/gateworks/gw_ventana/gw_ventana.cfg | 15 -
board/gateworks/gw_ventana/gw_ventana_spl.c | 419 ++++++++++++++++++++++++++++
boards.cfg | 6 +-
include/configs/gw_ventana.h | 11 +
7 files changed, 498 insertions(+), 56 deletions(-)
create mode 100644 board/gateworks/gw_ventana/gw_ventana_spl.c

diff --git a/board/gateworks/gw_ventana/Makefile b/board/gateworks/gw_ventana/Makefile
index 03bd1fd..33a1788 100644
--- a/board/gateworks/gw_ventana/Makefile
+++ b/board/gateworks/gw_ventana/Makefile
@@ -7,4 +7,5 @@
#

obj-y := gw_ventana.o gsc.o eeprom.o
+obj-$(CONFIG_SPL_BUILD) += gw_ventana_spl.o

diff --git a/board/gateworks/gw_ventana/README b/board/gateworks/gw_ventana/README
index 9e697d6..888657c 100644
--- a/board/gateworks/gw_ventana/README
+++ b/board/gateworks/gw_ventana/README
@@ -3,53 +3,81 @@ U-Boot for the Gateworks Ventana Product Family boards
This file contains information for the port of U-Boot to the Gateworks
Ventana Product family boards.

-1. Boot source, boot from NAND
+1. Secondary Program Loader (SPL)
+---------------------------------
+
+The i.MX6 has a BOOT ROM PPL (Primary Program Loader) which supports loading
+an executable image from various boot devices.
+
+The Gateworks Ventana board config uses an SPL build configuration. This
+will build the following artifacts from u-boot source:
+ - SPL - Secondary Program Loader that the i.MX6 BOOT ROM (Primary Program
+ Loader) boots. This detects CPU/DRAM configuration, configures
+ The DRAM controller, loads u-boot.img from the detected boot device,
+ and jumps to it. As this is booted from the PPL, it has an IVT/DCD
+ table.
+ - u-boot.img - The main u-boot core which is u-boot.bin with a image header.
+
+
+2. Build
+--------
+
+To build U-Boot for the Gateworks Ventana product family:
+
+ make gwventana_config
+ make
+
+
+3. Boot source, boot from NAND
------------------------------

The i.MX6 BOOT ROM expects some structures that provide details of NAND layout
and bad block information (referred to as 'bootstreams') which are replicated
-multiple times in NAND. The number of replications is configurable through
-board strapping options and eFUSE settings. The Freescale 'kobs-ng'
-application from the Freescale LTIB BSP, which runs under Linux, must be used
-to program the bootstream in order to setup the replicated headers correctly.
+multiple times in NAND. The number of replications and their spacing (referred
+to as search stride) is configurable through board strapping options and/or
+eFUSE settings (BOOT_SEARCH_COUNT / Pages in block from BOOT_CFG2). In
+addition, the i.MX6 BOOT ROM Flash Configuration Block (FCB) supports two
+copies of a bootloader in flash in the case that a bad block has corrupted one.
+The Freescale 'kobs-ng' application from the Freescale LTIB BSP, which runs
+under Linux and operates on an MTD partition, must be used to program the
+bootstream in order to setup this flash structure correctly.

The Gateworks Ventana boards with NAND flash have been factory programmed
such that their eFUSE settings expect 2 copies of the boostream (this is
specified by providing kobs-ng with the --search_exponent=1 argument). Once in
-Linux with MTD support for the NAND on /dev/mtd0 you can program the boostream
+Linux with MTD support for the NAND on /dev/mtd0 you can program the SPL
with:

-kobs-ng init -v -x --search_exponent=1 u-boot.imx
+kobs-ng init -v -x --search_exponent=1 SPL

-The kobs-ng application uses an imximage (u-boot.imx) which contains the
-Image Vector Table (IVT) and Device Configuration Data (DCD) structures that
-the i.MX6 BOOT ROM requires to boot. The kobs-ng adds the Firmware
-Configuration Block (FCB) and Discovered Bad Block Table (DBBT).
+The kobs-ng application uses an imximage which contains the Image Vector Table
+(IVT) and Device Configuration Data (DCD) structures that the i.MX6 BOOT ROM
+requires to boot. The kobs-ng adds the Firmware Configuration Block (FCB) and
+Discovered Bad Block Table (DBBT). The SPL build artifact from u-boot is
+an imximage.

-This information is taken from:
- http://trac.gateworks.com/wiki/ventana/bootloader#NANDFLASH
+The u-boot.img, which is the non SPL u-boot binary appended to a u-boot image
+header must be programmed in the NAND flash boot device at an offset hard
+coded in the SPL. For the Ventana boards, this has been chosen to be 14MB.
+The image can be programmed from either u-boot or Linux:

-More details about the i.MX6 BOOT ROM can be found in the IMX6 reference manual.
-
-2. Build
---------
+u-boot:
+Ventana > setenv mtdparts mtdparts=nand:14m(spl),2m(uboot),1m(env),-(rootfs)
+Ventana > tftp ${loadaddr} u-boot.img && nand erase.part uboot && \
+ nand write ${loadaddr} uboot ${filesize}

-There are several Gateworks Ventana boards that share a simliar design but
-vary based on CPU, Memory configuration, and subloaded devices. Although
-the subloaded devices are handled dynamically in the bootloader using
-factory configured EEPROM data to modify the device-tree, the CPU choice
-(IMX6Q vs IMX6DL) and memory configurations are currently compile-time
-options.
+Linux:
+nandwrite /dev/mtd1 u-boot.img

-The following Gateworks Ventana configurations exist:
- gwventanaq1gspi: MX6Q,1GB,SPI FLASH
- gwventanaq : MX6Q,512MB,NAND FLASH
- gwventanaq1g : MX6Q,1GB,NAND FLASH
- gwventanadl : MX6DL,512MB,NAND FLASH
- gwventanadl1g : MX6DL,1GB,NAND FLASH
+The above assumes the default Ventana partitioning scheme which is configured
+via the mtdparts env var:
+ - spl: 14MB
+ - uboot: 2M
+ - env: 1M
+ - rootfs: the rest

-To build U-Boot for the MX6Q,1GB,NAND FLASH for example:
+This information is taken from:
+ http://trac.gateworks.com/wiki/ventana/bootloader#NANDFLASH

- make gwventanaq1g_config
- make
+More details about the i.MX6 BOOT ROM can be found in the IMX6 reference manual.

diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index a33cb71..9d2651f 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -1102,6 +1102,7 @@ void get_board_serial(struct tag_serialnr *serialnr)
* Board Support
*/

+/* called from SPL board_init_f() */
int board_early_init_f(void)
{
setup_iomux_uart();
@@ -1115,8 +1116,7 @@ int board_early_init_f(void)

int dram_init(void)
{
- gd->ram_size = get_ram_size((void *)PHYS_SDRAM,
- CONFIG_DDR_MB*1024*1024);
+ gd->ram_size = imx_ddr_size();
return 0;
}

@@ -1258,9 +1258,11 @@ int misc_init_r(void)
* env scripts will try loading each from most specific to
* least.
*/
- if (is_cpu_type(MXC_CPU_MX6Q))
+ if (is_cpu_type(MXC_CPU_MX6Q) ||
+ is_cpu_type(MXC_CPU_MX6D))
cputype = "imx6q";
- else if (is_cpu_type(MXC_CPU_MX6DL))
+ else if (is_cpu_type(MXC_CPU_MX6DL) ||
+ is_cpu_type(MXC_CPU_MX6SOLO))
cputype = "imx6dl";
memset(str, 0, sizeof(str));
for (i = 0; i < (sizeof(str)-1) && info->model[i]; i++)
diff --git a/board/gateworks/gw_ventana/gw_ventana.cfg b/board/gateworks/gw_ventana/gw_ventana.cfg
index 27f0974..9ab95f5 100644
--- a/board/gateworks/gw_ventana/gw_ventana.cfg
+++ b/board/gateworks/gw_ventana/gw_ventana.cfg
@@ -24,21 +24,6 @@ BOOT_FROM nand

#define __ASSEMBLY__
#include <config.h>
-#include "asm/arch/mx6-ddr.h"
#include "asm/arch/iomux.h"
#include "asm/arch/crm_regs.h"
-
-/* Memory configuration (size is overridden via eeprom config) */
-#include "../../boundary/nitrogen6x/ddr-setup.cfg"
-#if defined(CONFIG_MX6Q) && CONFIG_DDR_MB == 1024
- #include "../../boundary/nitrogen6x/1066mhz_4x128mx16.cfg"
-#elif defined(CONFIG_MX6DL) && CONFIG_DDR_MB == 1024
- #include "../../boundary/nitrogen6x/800mhz_4x128mx16.cfg"
-#elif defined(CONFIG_MX6DL) && CONFIG_DDR_MB == 512
- #include "../../boundary/nitrogen6x/800mhz_2x128mx16.cfg"
-#elif defined(CONFIG_MX6Q) && CONFIG_DDR_MB == 512
- #include "../../boundary/nitrogen6x/800mhz_2x128mx16.cfg"
-#else
- #error "Unsupported CPU/Memory configuration"
-#endif
#include "clocks.cfg"
diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c
new file mode 100644
index 0000000..e943879
--- /dev/null
+++ b/board/gateworks/gw_ventana/gw_ventana_spl.c
@@ -0,0 +1,419 @@
+/*
+ * Copyright (C) 2014 Gateworks Corporation
+ * Author: Tim Harvey <tharvey@gateworks.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/io.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-ddr.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/imx-common/boot_mode.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <spl.h>
+
+#include "ventana_eeprom.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define RTT_NOM_120OHM /* use 120ohm Rtt_nom vs 60ohm (lower power) */
+#define I2C_GSC 0
+#define GSC_EEPROM_ADDR 0x51
+#define GSC_EEPROM_DDR_SIZE 0x2B /* enum (512,1024,2048) MB */
+#define GSC_EEPROM_DDR_WIDTH 0x2D /* enum (32,64) bit */
+#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
+ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
+ PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+#define CONFIG_SYS_I2C_SPEED 100000
+
+/* I2C1: GSC */
+static struct i2c_pads_info mx6q_i2c_pad_info0 = {
+ .scl = {
+ .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | PC,
+ .gpio_mode = MX6Q_PAD_EIM_D21__GPIO3_IO21 | PC,
+ .gp = IMX_GPIO_NR(3, 21)
+ },
+ .sda = {
+ .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | PC,
+ .gpio_mode = MX6Q_PAD_EIM_D28__GPIO3_IO28 | PC,
+ .gp = IMX_GPIO_NR(3, 28)
+ }
+};
+static struct i2c_pads_info mx6dl_i2c_pad_info0 = {
+ .scl = {
+ .i2c_mode = MX6DL_PAD_EIM_D21__I2C1_SCL | PC,
+ .gpio_mode = MX6DL_PAD_EIM_D21__GPIO3_IO21 | PC,
+ .gp = IMX_GPIO_NR(3, 21)
+ },
+ .sda = {
+ .i2c_mode = MX6DL_PAD_EIM_D28__I2C1_SDA | PC,
+ .gpio_mode = MX6DL_PAD_EIM_D28__GPIO3_IO28 | PC,
+ .gp = IMX_GPIO_NR(3, 28)
+ }
+};
+
+static void i2c_setup_iomux(void)
+{
+ if (is_cpu_type(MXC_CPU_MX6Q))
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6q_i2c_pad_info0);
+ else
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &mx6dl_i2c_pad_info0);
+}
+
+/* configure MX6Q/DUAL mmdc DDR io registers */
+struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
+ /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
+ .dram_sdclk_0 = 0x00020030,
+ .dram_sdclk_1 = 0x00020030,
+ .dram_cas = 0x00020030,
+ .dram_ras = 0x00020030,
+ .dram_reset = 0x00020030,
+ /* SDCKE[0:1]: 100k pull-up */
+ .dram_sdcke0 = 0x00003000,
+ .dram_sdcke1 = 0x00003000,
+ /* SDBA2: pull-up disabled */
+ .dram_sdba2 = 0x00000000,
+ /* SDODT[0:1]: 100k pull-up, 40 ohm */
+ .dram_sdodt0 = 0x00003030,
+ .dram_sdodt1 = 0x00003030,
+ /* SDQS[0:7]: Differential input, 40 ohm */
+ .dram_sdqs0 = 0x00000030,
+ .dram_sdqs1 = 0x00000030,
+ .dram_sdqs2 = 0x00000030,
+ .dram_sdqs3 = 0x00000030,
+ .dram_sdqs4 = 0x00000030,
+ .dram_sdqs5 = 0x00000030,
+ .dram_sdqs6 = 0x00000030,
+ .dram_sdqs7 = 0x00000030,
+
+ /* DQM[0:7]: Differential input, 40 ohm */
+ .dram_dqm0 = 0x00020030,
+ .dram_dqm1 = 0x00020030,
+ .dram_dqm2 = 0x00020030,
+ .dram_dqm3 = 0x00020030,
+ .dram_dqm4 = 0x00020030,
+ .dram_dqm5 = 0x00020030,
+ .dram_dqm6 = 0x00020030,
+ .dram_dqm7 = 0x00020030,
+};
+
+/* configure MX6Q/DUAL mmdc GRP io registers */
+struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
+ /* DDR3 */
+ .grp_ddr_type = 0x000c0000,
+ .grp_ddrmode_ctl = 0x00020000,
+ /* disable DDR pullups */
+ .grp_ddrpke = 0x00000000,
+ /* ADDR[00:16], SDBA[0:1]: 40 ohm */
+ .grp_addds = 0x00000030,
+ /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
+ .grp_ctlds = 0x00000030,
+ /* DATA[00:63]: Differential input, 40 ohm */
+ .grp_ddrmode = 0x00020000,
+ .grp_b0ds = 0x00000030,
+ .grp_b1ds = 0x00000030,
+ .grp_b2ds = 0x00000030,
+ .grp_b3ds = 0x00000030,
+ .grp_b4ds = 0x00000030,
+ .grp_b5ds = 0x00000030,
+ .grp_b6ds = 0x00000030,
+ .grp_b7ds = 0x00000030,
+};
+
+/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
+struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
+ /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
+ .dram_sdclk_0 = 0x00020030,
+ .dram_sdclk_1 = 0x00020030,
+ .dram_cas = 0x00020030,
+ .dram_ras = 0x00020030,
+ .dram_reset = 0x00020030,
+ /* SDCKE[0:1]: 100k pull-up */
+ .dram_sdcke0 = 0x00003000,
+ .dram_sdcke1 = 0x00003000,
+ /* SDBA2: pull-up disabled */
+ .dram_sdba2 = 0x00000000,
+ /* SDODT[0:1]: 100k pull-up, 40 ohm */
+ .dram_sdodt0 = 0x00003030,
+ .dram_sdodt1 = 0x00003030,
+ /* SDQS[0:7]: Differential input, 40 ohm */
+ .dram_sdqs0 = 0x00000030,
+ .dram_sdqs1 = 0x00000030,
+ .dram_sdqs2 = 0x00000030,
+ .dram_sdqs3 = 0x00000030,
+ .dram_sdqs4 = 0x00000030,
+ .dram_sdqs5 = 0x00000030,
+ .dram_sdqs6 = 0x00000030,
+ .dram_sdqs7 = 0x00000030,
+
+ /* DQM[0:7]: Differential input, 40 ohm */
+ .dram_dqm0 = 0x00020030,
+ .dram_dqm1 = 0x00020030,
+ .dram_dqm2 = 0x00020030,
+ .dram_dqm3 = 0x00020030,
+ .dram_dqm4 = 0x00020030,
+ .dram_dqm5 = 0x00020030,
+ .dram_dqm6 = 0x00020030,
+ .dram_dqm7 = 0x00020030,
+};
+
+/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
+struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
+ /* DDR3 */
+ .grp_ddr_type = 0x000c0000,
+ /* SDQS[0:7]: Differential input, 40 ohm */
+ .grp_ddrmode_ctl = 0x00020000,
+ /* disable DDR pullups */
+ .grp_ddrpke = 0x00000000,
+ /* ADDR[00:16], SDBA[0:1]: 40 ohm */
+ .grp_addds = 0x00000030,
+ /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
+ .grp_ctlds = 0x00000030,
+ /* DATA[00:63]: Differential input, 40 ohm */
+ .grp_ddrmode = 0x00020000,
+ .grp_b0ds = 0x00000030,
+ .grp_b1ds = 0x00000030,
+ .grp_b2ds = 0x00000030,
+ .grp_b3ds = 0x00000030,
+ .grp_b4ds = 0x00000030,
+ .grp_b5ds = 0x00000030,
+ .grp_b6ds = 0x00000030,
+ .grp_b7ds = 0x00000030,
+};
+
+/* MT41K128M16JT-125 */
+static struct mx6_ddr3_cfg mt41k128m16jt_125 = {
+ .mem_speed = 1600,
+ .density = 2,
+ .width = 16,
+ .banks = 8,
+ .rowaddr = 14,
+ .coladdr = 10,
+ .pagesz = 2,
+ .trcd = 1375,
+ .trcmin = 4875,
+ .trasmin = 3500,
+};
+
+/* GW54xx specific calibration */
+static struct mx6_mmdc_calibration gw54xxq_mmdc_calib = {
+ /* write leveling calibration determine */
+ .p0_mpwldectrl0 = 0x00190018,
+ .p0_mpwldectrl1 = 0x0021001D,
+ .p1_mpwldectrl0 = 0x00160027,
+ .p1_mpwldectrl1 = 0x0012001E,
+ /* Read DQS Gating calibration */
+ .p0_mpdgctrl0 = 0x43370346,
+ .p0_mpdgctrl1 = 0x032A0321,
+ .p1_mpdgctrl0 = 0x433A034D,
+ .p1_mpdgctrl1 = 0x032F0235,
+ /* Read Calibration: DQS delay relative to DQ read access */
+ .p0_mprddlctl = 0x3C313539,
+ .p1_mprddlctl = 0x37333140,
+ /* Write Calibration: DQ/DM delay relative to DQS write access */
+ .p0_mpwrdlctl = 0x37393C38,
+ .p1_mpwrdlctl = 0x42334538,
+};
+
+/* GW53xx specific calibration */
+static struct mx6_mmdc_calibration gw53xxq_mmdc_calib = {
+ /* write leveling calibration determine */
+ .p0_mpwldectrl0 = 0x00160013,
+ .p0_mpwldectrl1 = 0x00090024,
+ .p1_mpwldectrl0 = 0x001F0018,
+ .p1_mpwldectrl1 = 0x000C001C,
+ /* Read DQS Gating calibration */
+ .p0_mpdgctrl0 = 0x433A034C,
+ .p0_mpdgctrl1 = 0x0336032F,
+ .p1_mpdgctrl0 = 0x4343034A,
+ .p1_mpdgctrl1 = 0x03370222,
+ /* Read Calibration: DQS delay relative to DQ read access */
+ .p0_mprddlctl = 0x3F343638,
+ .p1_mprddlctl = 0x38373442,
+ /* Write Calibration: DQ/DM delay relative to DQS write access */
+ .p0_mpwrdlctl = 0x343A3E39,
+ .p1_mpwrdlctl = 0x44344239,
+};
+static struct mx6_mmdc_calibration gw53xxdl_mmdc_calib = {
+ /* write leveling calibration determine */
+ .p0_mpwldectrl0 = 0x003C003C,
+ .p0_mpwldectrl1 = 0x00330038,
+ .p1_mpwldectrl0 = 0x001F002A,
+ .p1_mpwldectrl1 = 0x0022003F,
+ /* Read DQS Gating calibration */
+ .p0_mpdgctrl0 = 0x42410244,
+ .p0_mpdgctrl1 = 0x022D022D,
+ .p1_mpdgctrl0 = 0x4234023A,
+ .p1_mpdgctrl1 = 0x021C0228,
+ /* Read Calibration: DQS delay relative to DQ read access */
+ .p0_mprddlctl = 0x484A4C4B,
+ .p1_mprddlctl = 0x4B4D4E4B,
+ /* Write Calibration: DQ/DM delay relative to DQS write access */
+ .p0_mpwrdlctl = 0x33342B32,
+ .p1_mpwrdlctl = 0x3933332B,
+};
+
+/* GW52xx specific calibration */
+static struct mx6_mmdc_calibration gw52xxdl_mmdc_calib = {
+ /* write leveling calibration determine */
+ .p0_mpwldectrl0 = 0x0040003F,
+ .p0_mpwldectrl1 = 0x00370037,
+ /* Read DQS Gating calibration */
+ .p0_mpdgctrl0 = 0x42420244,
+ .p0_mpdgctrl1 = 0x022F022F,
+ /* Read Calibration: DQS delay relative to DQ read access */
+ .p0_mprddlctl = 0x49464B4A,
+ /* Write Calibration: DQ/DM delay relative to DQS write access */
+ .p0_mpwrdlctl = 0x32362C32,
+};
+
+/* GW51xx specific calibration */
+static struct mx6_mmdc_calibration gw51xxq_mmdc_calib = {
+ /* write leveling calibration determine */
+ .p0_mpwldectrl0 = 0x00150016,
+ .p0_mpwldectrl1 = 0x001F0017,
+ /* Read DQS Gating calibration */
+ .p0_mpdgctrl0 = 0x433D034D,
+ .p0_mpdgctrl1 = 0x033D032F,
+ /* Read Calibration: DQS delay relative to DQ read access */
+ .p0_mprddlctl = 0x3F313639,
+ /* Write Calibration: DQ/DM delay relative to DQS write access */
+ .p0_mpwrdlctl = 0x33393F36,
+};
+
+static struct mx6_mmdc_calibration gw51xxdl_mmdc_calib = {
+ /* write leveling calibration determine */
+ .p0_mpwldectrl0 = 0x003D003F,
+ .p0_mpwldectrl1 = 0x002F0038,
+ /* Read DQS Gating calibration */
+ .p0_mpdgctrl0 = 0x423A023A,
+ .p0_mpdgctrl1 = 0x022A0228,
+ /* Read Calibration: DQS delay relative to DQ read access */
+ .p0_mprddlctl = 0x48494C4C,
+ /* Write Calibration: DQ/DM delay relative to DQS write access */
+ .p0_mpwrdlctl = 0x34352D31,
+};
+
+static void spl_dram_init(int width, int size, int board_model)
+{
+ struct mx6_ddr3_cfg *mem = &mt41k128m16jt_125;
+ struct mx6_mmdc_calibration *calib;
+ struct mx6_ddr_sysinfo sysinfo = {
+ /* width of data bus:0=16,1=32,2=64 */
+ .dsize = width/32,
+ /* config for full 4GB range so that get_mem_size() works */
+ .cs_density = 32, /* 32Gb per CS */
+ /* single chip select */
+ .ncs = 1,
+ .cs1_mirror = 0,
+ .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
+#ifdef RTT_NOM_120OHM
+ .rtt_nom = 2 /*DDR3_RTT_120_OHM*/, /* RTT_Nom = RZQ/2 */
+#else
+ .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
+#endif
+ .walat = 1, /* Write additional latency */
+ .ralat = 5, /* Read additional latency */
+ .mif3_mode = 3, /* Command prediction working mode */
+ .bi_on = 1, /* Bank interleaving enabled */
+ .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
+ .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
+ };
+
+ /*
+ * MMDC Calibration requires the following data:
+ * mx6_mmdc_calibration - board-specific calibration (routing delays)
+ * mx6_ddr_sysinfo - board-specific memory architecture (width/cs/etc)
+ * mx6_ddr_cfg - chip specific timing/layout details
+ */
+ switch (board_model) {
+ default:
+ case GW51xx:
+ if (is_cpu_type(MXC_CPU_MX6Q))
+ calib = &gw51xxq_mmdc_calib;
+ else
+ calib = &gw51xxdl_mmdc_calib;
+ break;
+ case GW52xx:
+ calib = &gw52xxdl_mmdc_calib;
+ break;
+ case GW53xx:
+ if (is_cpu_type(MXC_CPU_MX6Q))
+ calib = &gw53xxq_mmdc_calib;
+ else
+ calib = &gw53xxdl_mmdc_calib;
+ break;
+ case GW54xx:
+ calib = &gw54xxq_mmdc_calib;
+ break;
+ }
+
+ if (is_cpu_type(MXC_CPU_MX6Q))
+ mx6dq_dram_iocfg(width, &mx6dq_ddr_ioregs,
+ &mx6dq_grp_ioregs);
+ else
+ mx6sdl_dram_iocfg(width, &mx6sdl_ddr_ioregs,
+ &mx6sdl_grp_ioregs);
+ mx6_dram_cfg(&sysinfo, calib, mem);
+}
+
+/*
+ * called from C runtime startup code (arch/arm/lib/crt0.S:_main)
+ * - we have a stack and a place to store GD, both in SRAM
+ * - no variable global data is available
+ */
+void board_init_f(ulong dummy)
+{
+ struct ventana_board_info ventana_info;
+ int board_model;
+
+ /*
+ * Zero out global data:
+ * - this shoudl be done by crt0.S
+ * - failure to zero it will cause i2c_setup to fail
+ */
+ memset((void *)gd, 0, sizeof(struct global_data));
+
+ /* setup AIPS and disable watchdog */
+ arch_cpu_init();
+
+ /* iomux and setup of i2c */
+ board_early_init_f();
+ i2c_setup_iomux();
+
+ /* setup GP timer */
+ timer_init();
+
+ /* UART clocks enabled and gd valid - init serial console */
+ preloader_console_init();
+
+ /* read/validate EEPROM info to determine board model and SDRAM cfg */
+ board_model = read_eeprom(I2C_GSC, &ventana_info);
+
+ /* provide some some default: 32bit 128MB */
+ if (GW_UNKNOWN == board_model) {
+ ventana_info.sdram_width = 2;
+ ventana_info.sdram_size = 3;
+ }
+
+ /* configure MMDC for SDRAM width/size and per-model calibration */
+ spl_dram_init(8 << ventana_info.sdram_width,
+ 16 << ventana_info.sdram_size,
+ board_model);
+
+ /* Clear the BSS. */
+ memset(__bss_start, 0, __bss_end - __bss_start);
+
+ /* load/boot image from boot device */
+ board_init_r(NULL, 0);
+}
+
+void reset_cpu(ulong addr)
+{
+}
diff --git a/boards.cfg b/boards.cfg
index 5cf0583..fd4324d 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -328,11 +328,7 @@ Active arm armv7 mx6 freescale mx6qsabreauto
Active arm armv7 mx6 freescale mx6sabresd mx6dlsabresd mx6sabresd:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6dl.cfg,MX6DL Fabio Estevam <fabio.estevam@freescale.com>
Active arm armv7 mx6 freescale mx6sabresd mx6qsabresd mx6sabresd:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg,MX6Q Fabio Estevam <fabio.estevam@freescale.com>
Active arm armv7 mx6 freescale mx6slevk mx6slevk mx6slevk:IMX_CONFIG=board/freescale/mx6slevk/imximage.cfg,MX6SL Fabio Estevam <fabio.estevam@freescale.com>
-Active arm armv7 mx6 gateworks gw_ventana gwventanadl gw_ventana:IMX_CONFIG=board/gateworks/gw_ventana/gw_ventana.cfg,MX6DL,DDR_MB=512 Tim Harvey <tharvey@gateworks.com>
-Active arm armv7 mx6 gateworks gw_ventana gwventanadl1g gw_ventana:IMX_CONFIG=board/gateworks/gw_ventana/gw_ventana.cfg,MX6DL,DDR_MB=1024 Tim Harvey <tharvey@gateworks.com>
-Active arm armv7 mx6 gateworks gw_ventana gwventanaq gw_ventana:IMX_CONFIG=board/gateworks/gw_ventana/gw_ventana.cfg,MX6Q,DDR_MB=512 Tim Harvey <tharvey@gateworks.com>
-Active arm armv7 mx6 gateworks gw_ventana gwventanaq1g gw_ventana:IMX_CONFIG=board/gateworks/gw_ventana/gw_ventana.cfg,MX6Q,DDR_MB=1024 Tim Harvey <tharvey@gateworks.com>
-Active arm armv7 mx6 gateworks gw_ventana gwventanaq1gspi gw_ventana:IMX_CONFIG=board/gateworks/gw_ventana/gw_ventana.cfg,MX6Q,DDR_MB=1024,SPI_FLASH Tim Harvey <tharvey@gateworks.com>
+Active arm armv7 mx6 gateworks gw_ventana gwventana gw_ventana:IMX_CONFIG=board/gateworks/gw_ventana/gw_ventana.cfg,MX6QDL,SPL Tim Harvey <tharvey@gateworks.com>
Active arm armv7 mx6 solidrun hummingboard hummingboard_solo hummingboard:IMX_CONFIG=board/solidrun/hummingboard/solo.cfg,MX6S,DDR_MB=512 Jon Nettleton <jon.nettleton@gmail.com>
Active arm armv7 omap3 - overo omap3_overo - Steve Sakoman <sakoman@gmail.com>
Active arm armv7 omap3 - pandora omap3_pandora - Grazvydas Ignotas <notasas@gmail.com>
diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h
index cd55495..fb93913 100644
--- a/include/configs/gw_ventana.h
+++ b/include/configs/gw_ventana.h
@@ -7,6 +7,17 @@
#ifndef __CONFIG_H
#define __CONFIG_H

+/* SPL */
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SPL_FAT_SUPPORT
+/*
+#define CONFIG_SPL_SATA_SUPPORT
+*/
+/* Location in NAND to read U-Boot from */
+#define CONFIG_SYS_NAND_U_BOOT_OFFS (14 * 1024 * 1024)
+
+#include "imx6_spl.h" /* common IMX6 SPL configuration */
#include "mx6_common.h"
#define CONFIG_MX6
#define CONFIG_DISPLAY_CPUINFO /* display cpu info */
--
1.8.3.2