[U-Boot] [PATCH 1/3] Add nitrogen6x board
Eric Nelson
eric.nelson at boundarydevices.com
Mon Oct 8 18:05:41 CEST 2012
Hi Stefano,
On 10/08/2012 05:28 AM, Stefano Babic wrote:
> On 04/10/2012 21:49, Eric Nelson wrote:
>> Signed-off-by: Eric Nelson<eric.nelson at boundarydevices.com>
>> ---
>
> Hi Eric,
>
>
>> diff --git a/board/boundary/nitrogen6x/README b/board/boundary/nitrogen6x/README
>> new file mode 100644
>> index 0000000..d67cdf0
>> --- /dev/null
>> +++ b/board/boundary/nitrogen6x/README
>> @@ -0,0 +1,77 @@
>> +U-Boot for the Boundary Devices Nitrogen6X and
>> +Freescale i.MX6q SabreLite boards
>> +
>> +This file contains information for the port of
>> +U-Boot to the Boundary Devices Nitrogen6X and
>> +Freescale i.MX6q SabreLite boards.
>> +
>> +1. Boot source, boot from SPI NOR
>> +---------------------------------
>> +The configuration in this directory supports both the
>> +Nitrogen6X and Freescale SabreLite board, but in a
>> +different fashion from Freescale's implementation in
>> +board/freescale/mx6qsabrelite.
>> +
>> +In particular, this image supports booting from SPI NOR
>> +and saving the environment to SPI NOR.
>> +
>> +It does not support 'boot from SD' at offset 0x400
>> +except through the 'bmode' command.
>> + http://lists.denx.de/pipermail/u-boot/2012-August/131151.html
>
> bmode is mainline. You can drop the link.
>
Ok.
>> +
>> +2. Boots using 6q_bootscript on SATA or SD card
>> +-----------------------------------------------
>> +The default bootcmd for these boards is configured
>> +to look for and source a boot script named '6q_bootscript'
>> +in the root of the first partition of the following
>> +devices:
>> +
>> + sata 0
>> + mmc 0
>> + mmc 1
>> +
>> +They're searched in the order listed above, trying both the
>> +ext2 and fat filesystems.
>
> Really the script search also for "sata 1", even if it does not exist.
>
Yep. And of course it will fail.
What we really need to implement "boot anything" is a
foreach(blockdev) construct.
I saw some patches on the list a short while ago that seemed
to be heading in that direction, but haven't chased down the
details.
>> +2. Maintaining the SPI NOR
>> +--------------------------
>> +A couple of convenience commands
>> +
>> + clearenv - clear environment to factory default
>> + upgradeu - look and source a boot script named
>> + '6q_upgrade' to upgrade the U-Boot version
>> + in SPI NOR. The search is the same as for
>> + 6q_bootscript described above.
>
> This is your decision. But I think it can make some confusion for users
> that expects that everything is contained in u-boot. 6q_upgrade is not
> included here and it remains obscured how the update is done. Is there
> good reason why do you not add a script for updating u-boot directly to
> CONFIG_EXTRA_ENV_SETTINGS ?
>
The 'load /6q_upgrade' is what's present in 2009.08, so this
will make the transition easier.
For the time being, while there are feature gaps between the two,
I'd like to make it easy to swap between the two if possible.
I'm not sure how easy that will be, because there will be differences
in the boot scripts.
>> +
>> +3. Display support
>> +------------------
>> +U-Boot support for the following displays is configured by
>> +default:
>> +
>> + HDMI - 1024 x 768 for maximum compatibility
>> + Hannstar-XGA - 1024 x 768 LVDS (Freescale part number MCIMX-LVDS1)
>> + wsvga-lvds - 1024 x 600 LVDS (Boundary p/n Nit6X_1024x600)
>> + wvga-rgb - 800 x 480 RGB (Boundary p/n Nit6X_800x480)
>> +
>> +Since the ipuv3_fb display driver currently supports only a single display,
>> +this code auto-detects panel by probing the HDMI Phy for Hot Plug Detect
>> +or the I2C touch controller of the LVDS and RGB displays in the priority
>> +listed above.
>> +
>> +Setting 'panel' environment variable to one of the names above will
>> +override auto-detection and force activation of the specified panel.
>> +
>> +4. Building
>> +------------
>> +
>> +To build U-Boot for the Nitrogen6x or SabreLite board:
>> +
>> + make nitrogen6x_config
>> + make u-boot.imx
>
> I think the second one is superfluous, and simply "make" generates th
> eu-boot.imx binary.
>
It's odd that I didn't know this...
>> +
>> +If you place the u-boot.imx into a single-partition SD card
>> +along with a binary version of the boot script 6q_upgrade.txt,
>> +you can program it using 'upgradeu':
>
> Right, but 6q_upgrade.txt is not included. The u-boot documentation
> should be self explained: I mean, all ode should be provided (scripts
> included) or there are some links for users to inform what they can find
> what is missing.
>
I'd actually like to place 6q_upgrade.txt within the source tree,
even though it's not directly used.
I also have a couple of other patches done after submitting the
prelimary Nitrogen6X support.
In particular, note the url display at the tail-end of this patch:
https://github.com/boundarydevices/u-boot-imx6/commit/9ea546f3848799bc24fbc29a53b7bf293773a5f5
I hope our aim is clear here: "do the right thing". We have a lot
of users who are relative newbies to U-Boot and we hope to ease
their transition.
>> diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
>> new file mode 100644
>> index 0000000..e70871d
>> --- /dev/null
>> +++ b/board/boundary/nitrogen6x/nitrogen6x.c
>> @@ -0,0 +1,840 @@
>> +/*
>> + * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
>> + *
>> + * 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/io.h>
>> +#include<asm/arch/clock.h>
>> +#include<asm/arch/imx-regs.h>
>> +#include<asm/arch/iomux.h>
>> +#include<asm/arch/mx6x_pins.h>
>> +#include<asm/errno.h>
>> +#include<asm/gpio.h>
>> +#include<asm/imx-common/iomux-v3.h>
>> +#include<asm/imx-common/mxc_i2c.h>
>> +#include<asm/imx-common/boot_mode.h>
>> +#include<mmc.h>
>> +#include<fsl_esdhc.h>
>> +#include<micrel.h>
>> +#include<miiphy.h>
>> +#include<netdev.h>
>> +#include<linux/fb.h>
>> +#include<ipu_pixfmt.h>
>> +#include<asm/arch/crm_regs.h>
>> +#include<asm/arch/mxc_hdmi.h>
>> +#include<i2c.h>
>> +
>> +DECLARE_GLOBAL_DATA_PTR;
>> +
>> +#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
>> + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
>> + PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
>> +
>> +#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
>> + PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
>> + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
>> +
>> +#define ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
>> + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
>> + PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
>> +
>> +#define SPI_PAD_CTRL (PAD_CTL_HYS | \
>> + PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED | \
>> + PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
>> +
>> +#define BUTTON_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
>> + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
>> + PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
>> +
>> +#define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
>> + PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
>> + PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
>> + PAD_CTL_ODE | PAD_CTL_SRE_FAST)
>> +
>> +int dram_init(void)
>> +{
>> + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
>> +
>> + return 0;
>> +}
>
> I will come later to this point when I will test the imx image changes.
> Troy introduced a imx_ddr_size() - I will send my comment for that. I
> have supposed that you needed here.
>
>> +
>> +iomux_v3_cfg_t const uart1_pads[] = {
>> + MX6Q_PAD_SD3_DAT6__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
>> + MX6Q_PAD_SD3_DAT7__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
>> +};
>> +
>> +iomux_v3_cfg_t const uart2_pads[] = {
>> + MX6Q_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
>> + MX6Q_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
>> +};
>> +
>> +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
>> +
>> +/* I2C1, SGTL5000 */
>> +struct i2c_pads_info i2c_pad_info0 = {
>> + .scl = {
>> + .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | PC,
>> + .gpio_mode = MX6Q_PAD_EIM_D21__GPIO_3_21 | PC,
>> + .gp = IMX_GPIO_NR(3, 21)
>> + },
>> + .sda = {
>> + .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | PC,
>> + .gpio_mode = MX6Q_PAD_EIM_D28__GPIO_3_28 | PC,
>> + .gp = IMX_GPIO_NR(3, 28)
>> + }
>> +};
>> +
>> +/* I2C2 Camera, MIPI */
>> +struct i2c_pads_info i2c_pad_info1 = {
>> + .scl = {
>> + .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC,
>> + .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO_4_12 | PC,
>> + .gp = IMX_GPIO_NR(4, 12)
>> + },
>> + .sda = {
>> + .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC,
>> + .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO_4_13 | PC,
>> + .gp = IMX_GPIO_NR(4, 13)
>> + }
>> +};
>> +
>> +/* I2C3, J15 - RGB connector */
>> +struct i2c_pads_info i2c_pad_info2 = {
>> + .scl = {
>> + .i2c_mode = MX6Q_PAD_GPIO_5__I2C3_SCL | PC,
>> + .gpio_mode = MX6Q_PAD_GPIO_5__GPIO_1_5 | PC,
>> + .gp = IMX_GPIO_NR(1, 5)
>> + },
>> + .sda = {
>> + .i2c_mode = MX6Q_PAD_GPIO_16__I2C3_SDA | PC,
>> + .gpio_mode = MX6Q_PAD_GPIO_16__GPIO_7_11 | PC,
>> + .gp = IMX_GPIO_NR(7, 11)
>> + }
>> +};
>> +
>> +iomux_v3_cfg_t const usdhc3_pads[] = {
>> + MX6Q_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD3_DAT5__GPIO_7_0 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
>> +};
>> +
>> +iomux_v3_cfg_t const usdhc4_pads[] = {
>> + MX6Q_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
>> + MX6Q_PAD_NANDF_D6__GPIO_2_6 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
>> +};
>> +
>> +iomux_v3_cfg_t const enet_pads1[] = {
>> + MX6Q_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_TXC__ENET_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_TD0__ENET_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_TD1__ENET_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_TD2__ENET_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_TD3__ENET_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + /* pin 35 - 1 (PHY_AD2) on reset */
>> + MX6Q_PAD_RGMII_RXC__GPIO_6_30 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> + /* pin 32 - 1 - (MODE0) all */
>> + MX6Q_PAD_RGMII_RD0__GPIO_6_25 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> + /* pin 31 - 1 - (MODE1) all */
>> + MX6Q_PAD_RGMII_RD1__GPIO_6_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> + /* pin 28 - 1 - (MODE2) all */
>> + MX6Q_PAD_RGMII_RD2__GPIO_6_28 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> + /* pin 27 - 1 - (MODE3) all */
>> + MX6Q_PAD_RGMII_RD3__GPIO_6_29 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> + /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
>> + MX6Q_PAD_RGMII_RX_CTL__GPIO_6_24 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> + /* pin 42 PHY nRST */
>> + MX6Q_PAD_EIM_D23__GPIO_3_23 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> +};
>> +
>> +iomux_v3_cfg_t const enet_pads2[] = {
>> + MX6Q_PAD_RGMII_RXC__ENET_RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_RD0__ENET_RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_RD1__ENET_RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_RD2__ENET_RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_RD3__ENET_RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> + MX6Q_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
>> +};
>> +
>> +/* Button assignments for J14 */
>> +static iomux_v3_cfg_t const button_pads[] = {
>> + /* Menu */
>> + MX6Q_PAD_NANDF_D1__GPIO_2_1 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
>> + /* Back */
>> + MX6Q_PAD_NANDF_D2__GPIO_2_2 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
>> + /* Labelled Search (mapped to Power under Android) */
>> + MX6Q_PAD_NANDF_D3__GPIO_2_3 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
>> + /* Home */
>> + MX6Q_PAD_NANDF_D4__GPIO_2_4 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
>> + /* Volume Down */
>> + MX6Q_PAD_GPIO_19__GPIO_4_5 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
>> + /* Volume Up */
>> + MX6Q_PAD_GPIO_18__GPIO_7_13 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
>> +};
>> +
>> +static void setup_iomux_enet(void)
>> +{
>> + gpio_direction_output(IMX_GPIO_NR(3, 23), 0);
>> + gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
>> + gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
>> + gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
>> + gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
>> + gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
>> + imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
>> + gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
>> +
>> + /* Need delay 10ms according to KSZ9021 spec */
>> + udelay(1000 * 10);
>> + gpio_set_value(IMX_GPIO_NR(3, 23), 1);
>> +
>> + imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
>> +}
>> +
>> +iomux_v3_cfg_t const usb_pads[] = {
>> + MX6Q_PAD_GPIO_17__GPIO_7_12 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> +};
>> +
>> +static void setup_iomux_uart(void)
>> +{
>> + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
>> + imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
>
> Are there some spaces instead of tab ?
>
Yes. They're currently present in main-line.
>> +}
>> +
>> +#ifdef CONFIG_USB_EHCI_MX6
>> +int board_ehci_hcd_init(int port)
>> +{
>> + imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
>> +
>> + /* Reset USB hub */
>> + gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
>> + mdelay(2);
>> + gpio_set_value(IMX_GPIO_NR(7, 12), 1);
>> +
>> + return 0;
>> +}
>> +#endif
>> +
>> +#ifdef CONFIG_FSL_ESDHC
>> +struct fsl_esdhc_cfg usdhc_cfg[2] = {
>> + {USDHC3_BASE_ADDR},
>> + {USDHC4_BASE_ADDR},
>> +};
>> +
>> +int board_mmc_getcd(struct mmc *mmc)
>> +{
>> + struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
>> + int ret;
>> +
>> + if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
>> + gpio_direction_input(IMX_GPIO_NR(7, 0));
>> + ret = !gpio_get_value(IMX_GPIO_NR(7, 0));
>> + } else {
>> + gpio_direction_input(IMX_GPIO_NR(2, 6));
>> + ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +int board_mmc_init(bd_t *bis)
>> +{
>> + s32 status = 0;
>> + u32 index = 0;
>> +
>> + for (index = 0; index< CONFIG_SYS_FSL_USDHC_NUM; ++index) {
>> + switch (index) {
>> + case 0:
>> + imx_iomux_v3_setup_multiple_pads(
>> + usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
>> + break;
>> + case 1:
>> + imx_iomux_v3_setup_multiple_pads(
>> + usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
>> + break;
>> + default:
>> + printf("Warning: you configured more USDHC controllers"
>> + "(%d) then supported by the board (%d)\n",
>> + index + 1, CONFIG_SYS_FSL_USDHC_NUM);
>> + return status;
>> + }
>> +
>> + status |= fsl_esdhc_initialize(bis,&usdhc_cfg[index]);
>> + }
>> +
>> + return status;
>> +}
>> +#endif
>> +
>> +u32 get_board_rev(void)
>> +{
>> + return 0x63000 ;
>> +}
>> +
>> +#ifdef CONFIG_MXC_SPI
>> +iomux_v3_cfg_t const ecspi1_pads[] = {
>> + /* SS1 */
>> + MX6Q_PAD_EIM_D19__GPIO_3_19 | MUX_PAD_CTRL(SPI_PAD_CTRL),
>> + MX6Q_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
>> + MX6Q_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
>> + MX6Q_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
>> +};
>> +
>> +void setup_spi(void)
>> +{
>> + gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
>> + imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
>> + ARRAY_SIZE(ecspi1_pads));
>> +}
>> +#endif
>> +
>> +int board_phy_config(struct phy_device *phydev)
>> +{
>> + /* min rx data delay */
>> + ksz9021_phy_extended_write(phydev,
>> + MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
>> + /* min tx data delay */
>> + ksz9021_phy_extended_write(phydev,
>> + MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
>> + /* max rx/tx clock delay, min rx/tx control */
>> + ksz9021_phy_extended_write(phydev,
>> + MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
>> + if (phydev->drv->config)
>> + phydev->drv->config(phydev);
>> +
>> + return 0;
>> +}
>> +
>> +int board_eth_init(bd_t *bis)
>> +{
>> + int ret;
>> +
>> + setup_iomux_enet();
>> +
>> + ret = cpu_eth_init(bis);
>> + if (ret)
>> + printf("FEC MXC: %s:failed\n", __func__);
>> +
>> + return 0;
>> +}
>
> Maybe you can move setup_iomux_enet() in another board function and drop
> board_eth_init(). cpu_eth_init() is called then in general code.
>
I'll respond to this in a separate thread related to Tom's comment about
re-factoring.
>> +
>> +static void setup_buttons(void)
>> +{
>> + imx_iomux_v3_setup_multiple_pads(button_pads,
>> + ARRAY_SIZE(button_pads));
>> +}
>> +
>> +#ifdef CONFIG_CMD_SATA
>> +
>> +int setup_sata(void)
>> +{
>> + struct iomuxc_base_regs *const iomuxc_regs
>> + = (struct iomuxc_base_regs *) IOMUXC_BASE_ADDR;
>> + int ret = enable_sata_clock();
>> + if (ret)
>> + return ret;
>> +
>> + clrsetbits_le32(&iomuxc_regs->gpr[13],
>> + IOMUXC_GPR13_SATA_MASK,
>> + IOMUXC_GPR13_SATA_PHY_8_RXEQ_3P0DB
>> + |IOMUXC_GPR13_SATA_PHY_7_SATA2M
>> + |IOMUXC_GPR13_SATA_SPEED_3G
>> + |(3<<IOMUXC_GPR13_SATA_PHY_6_SHIFT)
>> + |IOMUXC_GPR13_SATA_SATA_PHY_5_SS_DISABLED
>> + |IOMUXC_GPR13_SATA_SATA_PHY_4_ATTEN_9_16
>> + |IOMUXC_GPR13_SATA_PHY_3_TXBOOST_0P00_DB
>> + |IOMUXC_GPR13_SATA_PHY_2_TX_1P104V
>> + |IOMUXC_GPR13_SATA_PHY_1_SLOW);
>> +
>> + return 0;
>> +}
>> +#endif
>> +
>> +#if defined(CONFIG_VIDEO_IPUV3)
>> +
>> +static iomux_v3_cfg_t const backlight_pads[] = {
>> + /* Backlight on RGB connector: J15 */
>> + MX6Q_PAD_SD1_DAT3__GPIO_1_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> +#define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
>> +
>> + /* Backlight on LVDS connector: J6 */
>> + MX6Q_PAD_SD1_CMD__GPIO_1_18 | MUX_PAD_CTRL(NO_PAD_CTRL),
>> +#define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
>> +};
>> +
>> +static iomux_v3_cfg_t const rgb_pads[] = {
>> + MX6Q_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
>> + MX6Q_PAD_DI0_PIN15__IPU1_DI0_PIN15,
>> + MX6Q_PAD_DI0_PIN2__IPU1_DI0_PIN2,
>> + MX6Q_PAD_DI0_PIN3__IPU1_DI0_PIN3,
>> + MX6Q_PAD_DI0_PIN4__GPIO_4_20,
>> + MX6Q_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
>> + MX6Q_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
>> + MX6Q_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
>> + MX6Q_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
>> + MX6Q_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
>> + MX6Q_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
>> + MX6Q_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
>> + MX6Q_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
>> + MX6Q_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
>> + MX6Q_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
>> + MX6Q_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
>> + MX6Q_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
>> + MX6Q_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
>> + MX6Q_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
>> + MX6Q_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
>> + MX6Q_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
>> + MX6Q_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
>> + MX6Q_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
>> + MX6Q_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
>> + MX6Q_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
>> + MX6Q_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
>> + MX6Q_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
>> + MX6Q_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
>> + MX6Q_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
>> +};
>> +
>> +struct display_info_t {
>> + int bus;
>> + int addr;
>> + int pixfmt;
>> + int (*detect)(struct display_info_t const *dev);
>> + void (*enable)(struct display_info_t const *dev);
>> + struct fb_videomode mode;
>> +};
>> +
>> +
>> +static int detect_hdmi(struct display_info_t const *dev)
>> +{
>> + return __raw_readb(HDMI_ARB_BASE_ADDR+HDMI_PHY_STAT0)& HDMI_PHY_HPD;
>> +}
>> +
>> +static void enable_hdmi(struct display_info_t const *dev)
>> +{
>> + u8 reg;
>> + printf("%s: setup HDMI monitor\n", __func__);
>> + reg = __raw_readb(
>> + HDMI_ARB_BASE_ADDR
>> + +HDMI_PHY_CONF0);
>
> Accesses with base + offset are forbidden in u-boot. Please add
> structures for this.
>
Ok. This comment really applies to the display support patch.
>> +
>> +static int detect_i2c(struct display_info_t const *dev)
>> +{
>> + return ((0 == i2c_set_bus_num(dev->bus))
>> + &&
>> + (0 == i2c_probe(dev->addr)));
>> +}
>
> This is an original form of if (!i2c_set_bus_num()&&
> !i2c_probe(dev->addr))...
>
Sorry. I have a hard time with the use of ! here since
there's a lot of software that returns true for success.
I always find comparison against the success value to be
clearer, but I can certainly change it.
Muscle-memory is hard to fight.
I'm sure Marek will also have a problem with the Yoda test.
>> +
>> +static void enable_lvds(struct display_info_t const *dev)
>> +{
>> + struct iomuxc *iomux = (struct iomuxc *)
>> + IOMUXC_BASE_ADDR;
>> + u32 reg = readl(&iomux->gpr[2]);
>> + reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
>> + writel(reg,&iomux->gpr[2]);
>> + gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
>> +}
>> +
>> +static void enable_rgb(struct display_info_t const *dev)
>> +{
>> + imx_iomux_v3_setup_multiple_pads(
>> + rgb_pads,
>> + ARRAY_SIZE(rgb_pads));
>> + gpio_direction_output(RGB_BACKLIGHT_GP, 1);
>> +}
>> +
>> +static struct display_info_t const displays[] = {{
>> + .bus = -1,
>> + .addr = 0,
>> + .pixfmt = IPU_PIX_FMT_RGB24,
>> + .detect = detect_hdmi,
>> + .enable = enable_hdmi,
>> + .mode = {
>> + .name = "HDMI",
>> + .refresh = 60,
>> + .xres = 1024,
>> + .yres = 768,
>> + .pixclock = 15385,
>> + .left_margin = 220,
>> + .right_margin = 40,
>> + .upper_margin = 21,
>> + .lower_margin = 7,
>> + .hsync_len = 60,
>> + .vsync_len = 10,
>> + .sync = FB_SYNC_EXT,
>> + .vmode = FB_VMODE_NONINTERLACED
>> +} }, {
>> + .bus = 2,
>> + .addr = 0x4,
>> + .pixfmt = IPU_PIX_FMT_LVDS666,
>> + .detect = detect_i2c,
>> + .enable = enable_lvds,
>> + .mode = {
>> + .name = "Hannstar-XGA",
>> + .refresh = 60,
>> + .xres = 1024,
>> + .yres = 768,
>> + .pixclock = 15385,
>> + .left_margin = 220,
>> + .right_margin = 40,
>> + .upper_margin = 21,
>> + .lower_margin = 7,
>> + .hsync_len = 60,
>> + .vsync_len = 10,
>> + .sync = FB_SYNC_EXT,
>> + .vmode = FB_VMODE_NONINTERLACED
>> +} }, {
>> + .bus = 2,
>> + .addr = 0x38,
>> + .pixfmt = IPU_PIX_FMT_LVDS666,
>> + .detect = detect_i2c,
>> + .enable = enable_lvds,
>> + .mode = {
>> + .name = "wsvga-lvds",
>> + .refresh = 60,
>> + .xres = 1024,
>> + .yres = 600,
>> + .pixclock = 15385,
>> + .left_margin = 220,
>> + .right_margin = 40,
>> + .upper_margin = 21,
>> + .lower_margin = 7,
>> + .hsync_len = 60,
>> + .vsync_len = 10,
>> + .sync = FB_SYNC_EXT,
>> + .vmode = FB_VMODE_NONINTERLACED
>> +} }, {
>> + .bus = 2,
>> + .addr = 0x48,
>> + .pixfmt = IPU_PIX_FMT_RGB666,
>> + .detect = detect_i2c,
>> + .enable = enable_rgb,
>> + .mode = {
>> + .name = "wvga-rgb",
>> + .refresh = 57,
>> + .xres = 800,
>> + .yres = 480,
>> + .pixclock = 37037,
>> + .left_margin = 40,
>> + .right_margin = 60,
>> + .upper_margin = 10,
>> + .lower_margin = 10,
>> + .hsync_len = 20,
>> + .vsync_len = 10,
>> + .sync = 0,
>> + .vmode = FB_VMODE_NONINTERLACED
>> +} } };
>> +
>> +int board_video_skip(void)
>> +{
>> + int i;
>> + int ret;
>> + char const *panel = getenv("panel");
>> + if (!panel) {
>> + for (i = 0; i< ARRAY_SIZE(displays); i++) {
>> + struct display_info_t const *dev = displays+i;
>> + if (dev->detect(dev)) {
>> + panel = dev->mode.name;
>> + printf("auto-detected panel %s\n", panel);
>> + break;
>> + }
>> + }
>> + if (!panel) {
>> + panel = displays[0].mode.name;
>> + printf("No panel detected: default to %s\n", panel);
>> + }
>> + } else {
>> + for (i = 0; i< ARRAY_SIZE(displays); i++) {
>> + if (!strcmp(panel, displays[i].mode.name))
>> + break;
>> + }
>> + }
>> + if (i< ARRAY_SIZE(displays)) {
>> + ret = ipuv3_fb_init(&displays[i].mode, 0,
>> + displays[i].pixfmt);
>> + if (!ret) {
>> + displays[i].enable(displays+i);
>> + printf("Display: %s (%ux%u)\n",
>> + displays[i].mode.name,
>> + displays[i].mode.xres,
>> + displays[i].mode.yres);
>> + } else
>> + printf("LCD %s cannot be configured: %d\n",
>> + displays[i].mode.name, ret);
>> + } else {
>> + printf("unsupported panel %s\n", panel);
>> + ret = -EINVAL;
>> + }
>> + return (0 != ret);
>> +}
>> +
>> +static void setup_display(void)
>> +{
>> + struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
>> + struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
>> + struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
>> +
>> + int reg;
>> +
>> + /* Turn on LDB0,IPU,IPU DI0 clocks */
>> + reg = __raw_readl(&mxc_ccm->CCGR3);
>> + reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET
>> + |MXC_CCM_CCGR3_LDB_DI0_MASK;
>> + writel(reg,&mxc_ccm->CCGR3);
>> +
>> + /* Turn on HDMI PHY clock */
>> + reg = __raw_readl(&mxc_ccm->CCGR2);
>> + reg |= MXC_CCM_CCGR2_HDMI_TX_IAHBCLK_MASK
>> + |MXC_CCM_CCGR2_HDMI_TX_ISFRCLK_MASK;
>> + writel(reg,&mxc_ccm->CCGR2);
>> +
>> + /* clear HDMI PHY reset */
>> + __raw_writeb(HDMI_MC_PHYRSTZ_DEASSERT,
>> + HDMI_ARB_BASE_ADDR+HDMI_MC_PHYRSTZ);
>> +
>> + /* set PFD1_FRAC to 0x13 == 455 MHz (480*18)/0x13 */
>> + writel(ANATOP_PFD_480_PFD1_FRAC_MASK,&anatop->pfd_480_clr);
>> + writel(0x13<<ANATOP_PFD_480_PFD1_FRAC_SHIFT,&anatop->pfd_480_set);
>> +
>> + /* set LDB0, LDB1 clk select to 011/011 */
>> + reg = readl(&mxc_ccm->cs2cdr);
>> + reg&= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
>> + |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
>> + reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
>> + |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
>> + writel(reg,&mxc_ccm->cs2cdr);
>> +
>> + reg = readl(&mxc_ccm->cscmr2);
>> + reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
>> + writel(reg,&mxc_ccm->cscmr2);
>> +
>> + reg = readl(&mxc_ccm->chsccdr);
>> + reg&= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK
>> + |MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK
>> + |MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
>> + reg |= (CHSCCDR_CLK_SEL_LDB_DI0
>> + <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET)
>> + |(CHSCCDR_PODF_DIVIDE_BY_3
>> + <<MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET)
>> + |(CHSCCDR_IPU_PRE_CLK_540M_PFD
>> + <<MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET);
>> + writel(reg,&mxc_ccm->chsccdr);
>> +
>> + reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
>> + |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
>> + |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
>> + |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
>> + |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
>> + |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
>> + |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
>> + |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
>> + |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
>> + writel(reg,&iomux->gpr[2]);
>> +
>> + reg = readl(&iomux->gpr[3]);
>> + reg = (reg& ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK)
>> + | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
>> + <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
>> + writel(reg,&iomux->gpr[3]);
>> +
>> + /* backlights off until needed */
>> + imx_iomux_v3_setup_multiple_pads(backlight_pads,
>> + ARRAY_SIZE(backlight_pads));
>> + gpio_direction_input(LVDS_BACKLIGHT_GP);
>> + gpio_direction_input(RGB_BACKLIGHT_GP);
>> +}
>> +#endif
>> +
>> +int board_early_init_f(void)
>> +{
>> + setup_iomux_uart();
>> + setup_buttons();
>> +
>> +#if defined(CONFIG_VIDEO_IPUV3)
>> + setup_display();
>> +#endif
>> + return 0;
>> +}
>> +
>> +/*
>> + * Do not overwrite the console
>> + * Use always serial for U-Boot console
>> + */
>> +int overwrite_console(void)
>> +{
>> + return 1;
>> +}
>> +
>> +int board_init(void)
>> +{
>> + /* address of boot parameters */
>> + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
>> +
>> +#ifdef CONFIG_MXC_SPI
>> + setup_spi();
>> +#endif
>> + setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f,&i2c_pad_info0);
>> + setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f,&i2c_pad_info1);
>> + setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f,&i2c_pad_info2);
>> +
>> +#ifdef CONFIG_CMD_SATA
>> + setup_sata();
>> +#endif
>
> Maybe also setup_display should be called here to make things more
> consistent.
>
This comment also applies to the display support patch.
I thought that setup_display needs to be in board_early_init to
allow a vga console, but I'll look again.
>> +
>> + return 0;
>> +}
>> +
>> +int checkboard(void)
>> +{
>> + puts("Board: Nitrogen6X or MX6Q-Sabre Lite\n");
>
> I have understood that this porting is for the NitroGen board. Even if
> this u-boot can run on a SabreLite, it is quite confusing this output.
> IMHO only NitroGen should be printed.
>
I think this is covered in the comment to the second patch.
Auto-detection requires setup of the SDIO pads.
>> +struct button_key {
>> + char const *name;
>> + unsigned gpnum;
>> + char ident;
>> +};
>> +
>> +static struct button_key const buttons[] = {
>> + {"back", IMX_GPIO_NR(2, 2), 'B'},
>> + {"home", IMX_GPIO_NR(2, 4), 'H'},
>> + {"menu", IMX_GPIO_NR(2, 1), 'M'},
>> + {"search", IMX_GPIO_NR(2, 3), 'S'},
>> + {"volup", IMX_GPIO_NR(7, 13), 'V'},
>> + {"voldown", IMX_GPIO_NR(4, 5), 'v'},
>> +};
>> +
>> +/*
>> + * generate a null-terminated string containing the buttons pressed
>> + * returns number of keys pressed
>> + */
>> +static int read_keys(char *buf)
>> +{
>> + int i, numpressed = 0;
>> + for (i = 0; i< ARRAY_SIZE(buttons); i++) {
>> + if (!gpio_get_value(buttons[i].gpnum))
>> + buf[numpressed++] = buttons[i].ident;
>> + }
>> + buf[numpressed] = '\0';
>> + return numpressed;
>> +}
>> +
>> +static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> + char envvalue[ARRAY_SIZE(buttons)+1];
>> + int numpressed = read_keys(envvalue);
>> + setenv("keybd", envvalue);
>> + return numpressed == 0;
>> +}
>
> What about to factorize this stuff ? This is not strictly related to
> your board. What is needed here is a the array with the key definitions.
> This stuff is in much more as in a couple of boards. It is contained
> also in board/r360mpi/r360mpi.c and lwmon.
>
> Let away the old boards. However, if we hide these function in board
> code, it is quite probable we see the same functionality implemented
> another time.
>
> What about to move into drivers/input ? It seems to me the right place
> for it.
>
As discussed in another thread, a **lot** of re-factoring could
be done, especially as it relates to SABRE Lite and Nitrogen6x.
I'll see what can be done here. You're right that there isn't
anything board-specific here except the pads and key assignments.
... and perhaps the polarities of the GPIOs.
>> +
>> +U_BOOT_CMD(
>> + kbd, 1, 1, do_kbd,
>> + "Tests for keypresses, sets 'keybd' environment variable",
>> + "Returns 0 (true) to shell if key is pressed."
>> +);
>> +
>> +#ifdef CONFIG_PREBOOT
>> +static char const kbd_magic_prefix[] = "key_magic";
>> +static char const kbd_command_prefix[] = "key_cmd";
>> +
>> +static void preboot_keys(void)
>> +{
>> + int numpressed;
>> + char keypress[ARRAY_SIZE(buttons)+1];
>> + numpressed = read_keys(keypress);
>> + if (numpressed) {
>> + char *kbd_magic_keys = getenv("magic_keys");
>> + char *suffix;
>> + /*
>> + * loop over all magic keys
>> + */
>> + for (suffix = kbd_magic_keys; *suffix; ++suffix) {
>> + char *keys;
>> + char magic[sizeof(kbd_magic_prefix) + 1];
>> + sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
>> + keys = getenv(magic);
>> + if (keys) {
>> + if (!strcmp(keys, keypress))
>> + break;
>> + }
>> + }
>> + if (*suffix) {
>> + char cmd_name[sizeof(kbd_command_prefix) + 1];
>> + char *cmd;
>> + sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
>> + cmd = getenv(cmd_name);
>> + if (cmd) {
>> + setenv("preboot", cmd);
>
> IMHO it should be always possible for the user to explicitely set the
> "preboot" variable. In your implementation, it is always overwritten. I
> would add a check for "preboot", setting it only in case it is not yet set.
>
Good catch. I hadn't noticed that.
This really does apply to a previous patch adding keyboard support though.
>> + return;
>> + }
>> + }
>> + }
>> +}
>
>
> Also preboot_keys() can be useful for other boards, not only for
> sabrelite and nitrogen.
>
Absolutely.
>> +#endif
>> +
>> +#ifdef CONFIG_CMD_BMODE
>> +static const struct boot_mode board_boot_modes[] = {
>> + /* 4 bit bus width */
>> + {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
>> + {"mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
>> + {NULL, 0},
>> +};
>> +#endif
>> +
>> +int misc_init_r(void)
>> +{
>> +#ifdef CONFIG_PREBOOT
>> + preboot_keys();
>> +#endif
>> +
>> +#ifdef CONFIG_CMD_BMODE
>> + add_board_boot_modes(board_boot_modes);
>> +#endif
>> + return 0;
>> +}
>> diff --git a/boards.cfg b/boards.cfg
>> index e9e073e..ac8e39d 100644
>> --- a/boards.cfg
>> +++ b/boards.cfg
>> @@ -234,6 +234,7 @@ mx6qarm2 arm armv7 mx6qarm2 freesca
>> mx6qsabreauto arm armv7 mx6qsabreauto freescale mx6 mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/imximage.cfg
>> mx6qsabrelite arm armv7 mx6qsabrelite freescale mx6 mx6qsabrelite:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
>> mx6qsabresd arm armv7 mx6qsabresd freescale mx6 mx6qsabresd:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
>> +nitrogen6x arm armv7 nitrogen6x boundary mx6 nitrogen6x:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
>> cm_t35 arm armv7 cm_t35 - omap3
>> omap3_overo arm armv7 overo - omap3
>> omap3_pandora arm armv7 pandora - omap3
>> diff --git a/include/configs/nitrogen6x.h b/include/configs/nitrogen6x.h
>> new file mode 100644
>> index 0000000..f0ecf72
>> --- /dev/null
>> +++ b/include/configs/nitrogen6x.h
>> @@ -0,0 +1,242 @@
>> +/*
>> + * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
>> + *
>> + * Configuration settings for the Boundary Devices Nitrogen6X
>> + * and Freescale i.MX6Q Sabre Lite boards.
>> + *
>> + * 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
>> + */
>> +
>> +#ifndef __CONFIG_H
>> +#define __CONFIG_H
>> +
>> +#define CONFIG_MX6Q
>> +#define CONFIG_DISPLAY_CPUINFO
>> +#define CONFIG_DISPLAY_BOARDINFO
>> +
>> +#define CONFIG_MACH_TYPE 3769
>> +
>> +#include<asm/arch/imx-regs.h>
>> +#include<asm/imx-common/gpio.h>
>> +
>> +#define CONFIG_CMDLINE_TAG
>> +#define CONFIG_SETUP_MEMORY_TAGS
>> +#define CONFIG_INITRD_TAG
>> +#define CONFIG_REVISION_TAG
>> +
>> +/* Size of malloc() pool */
>> +#define CONFIG_SYS_MALLOC_LEN (10 * 1024 * 1024)
>> +
>> +#define CONFIG_BOARD_EARLY_INIT_F
>> +#define CONFIG_MISC_INIT_R
>> +#define CONFIG_MXC_GPIO
>> +
>> +#define CONFIG_MXC_UART
>> +#define CONFIG_MXC_UART_BASE UART2_BASE
>> +
>> +#define CONFIG_CMD_SF
>> +#ifdef CONFIG_CMD_SF
>> +#define CONFIG_SPI_FLASH
>> +#define CONFIG_SPI_FLASH_SST
>> +#define CONFIG_MXC_SPI
>> +#define CONFIG_SF_DEFAULT_BUS 0
>> +#define CONFIG_SF_DEFAULT_CS (0|(IMX_GPIO_NR(3, 19)<<8))
>> +#define CONFIG_SF_DEFAULT_SPEED 25000000
>> +#define CONFIG_SF_DEFAULT_MODE (SPI_MODE_0)
>> +#endif
>> +
>> +/* I2C Configs */
>> +#define CONFIG_CMD_I2C
>> +#define CONFIG_I2C_MULTI_BUS
>> +#define CONFIG_I2C_MXC
>> +#define CONFIG_SYS_I2C_SPEED 100000
>> +
>> +/* MMC Configs */
>> +#define CONFIG_FSL_ESDHC
>> +#define CONFIG_FSL_USDHC
>> +#define CONFIG_SYS_FSL_ESDHC_ADDR 0
>> +#define CONFIG_SYS_FSL_USDHC_NUM 2
>> +
>> +#define CONFIG_MMC
>> +#define CONFIG_CMD_MMC
>> +#define CONFIG_GENERIC_MMC
>> +#define CONFIG_CMD_EXT2
>> +#define CONFIG_CMD_FAT
>> +#define CONFIG_DOS_PARTITION
>> +
>> +#define CONFIG_CMD_SATA
>> +/*
>> + * SATA Configs
>> + */
>> +#ifdef CONFIG_CMD_SATA
>> +#define CONFIG_DWC_AHSATA
>> +#define CONFIG_SYS_SATA_MAX_DEVICE 1
>> +#define CONFIG_DWC_AHSATA_PORT_ID 0
>> +#define CONFIG_DWC_AHSATA_BASE_ADDR SATA_ARB_BASE_ADDR
>> +#define CONFIG_LBA48
>> +#define CONFIG_LIBATA
>> +#endif
>> +
>> +#define CONFIG_CMD_PING
>> +#define CONFIG_CMD_DHCP
>> +#define CONFIG_CMD_MII
>> +#define CONFIG_CMD_NET
>> +#define CONFIG_FEC_MXC
>> +#define CONFIG_MII
>> +#define IMX_FEC_BASE ENET_BASE_ADDR
>> +#define CONFIG_FEC_XCV_TYPE RGMII
>> +#define CONFIG_ETHPRIME "FEC"
>> +#define CONFIG_FEC_MXC_PHYADDR 6
>> +#define CONFIG_PHYLIB
>> +#define CONFIG_PHY_MICREL
>> +#define CONFIG_PHY_MICREL_KSZ9021
>> +
>> +/* USB Configs */
>> +#define CONFIG_CMD_USB
>> +#define CONFIG_CMD_FAT
>> +#define CONFIG_USB_EHCI
>> +#define CONFIG_USB_EHCI_MX6
>> +#define CONFIG_USB_STORAGE
>> +#define CONFIG_USB_HOST_ETHER
>> +#define CONFIG_USB_ETHER_ASIX
>> +#define CONFIG_USB_ETHER_SMSC95XX
>> +#define CONFIG_MXC_USB_PORT 1
>> +#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
>> +#define CONFIG_MXC_USB_FLAGS 0
>> +
>> +/* Miscellaneous commands */
>> +#define CONFIG_CMD_BMODE
>> +#define CONFIG_CMD_SETEXPR
>> +
>> +/* Framebuffer and LCD */
>> +#define CONFIG_VIDEO
>> +#define CONFIG_VIDEO_IPUV3
>> +#define CONFIG_CFB_CONSOLE
>> +#define CONFIG_VGA_AS_SINGLE_DEVICE
>> +#define CONFIG_SYS_CONSOLE_IS_IN_ENV
>> +#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
>> +#define CONFIG_VIDEO_BMP_RLE8
>> +#define CONFIG_SPLASH_SCREEN
>> +#define CONFIG_BMP_16BPP
>> +#define CONFIG_VIDEO_LOGO
>> +#define CONFIG_IPUV3_CLK 260000000
>> +
>> +/* allow to overwrite serial and ethaddr */
>> +#define CONFIG_ENV_OVERWRITE
>> +#define CONFIG_CONS_INDEX 1
>> +#define CONFIG_BAUDRATE 115200
>> +
>> +/* Command definition */
>> +#include<config_cmd_default.h>
>
> Move CONFIG_CMD_BMODE and CONFIG_CMD_SETEXPR here.
>
That makes perfect sense.
>> +
>> +#undef CONFIG_CMD_IMLS
>> +
>> +#define CONFIG_BOOTDELAY 3
>> +
>> +#define CONFIG_PREBOOT ""
>> +
>> +#define CONFIG_LOADADDR 0x10800000
>> +#define CONFIG_SYS_TEXT_BASE 0x17800000
>> +
>> +#define CONFIG_EXTRA_ENV_SETTINGS \
>> + "console=ttymxc1\0" \
>> + "clearenv=if sf probe || sf probe || sf probe 1 ; then sf erase 0xc0000 0x2000&& " \
>> + "echo restored environment to factory default ; fi\0" \
>> + "bootcmd=for dtype in sata mmc ; do " \
>> + "for disk in 0 1 ; do ${dtype} dev ${disk} ;" \
>> + "for fs in fat ext2 ; do " \
>> + "${fs}load ${dtype} ${disk}:1 10008000 " \
>> + "/6q_bootscript" \
>> + "&& source 10008000 ; " \
>> + "done ; " \
>> + "done ; " \
>> + "done\0" \
>> + "upgradeu=for dtype in sata mmc ; do " \
>> + "for disk in 0 1 ; do ${dtype} dev ${disk} ;" \
>> + "for fs in fat ext2 ; do " \
>> + "${fs}load ${dtype} ${disk}:1 10008000 " \
>> + "/6q_upgrade " \
>> + "&& source 10008000 ; " \
>> + "done ; " \
>> + "done ; " \
>> + "done\0" \
>> +
>> +#define CONFIG_ARP_TIMEOUT 200UL
>> +
>> +/* Miscellaneous configurable options */
>> +#define CONFIG_SYS_LONGHELP
>> +#define CONFIG_SYS_HUSH_PARSER
>> +#define CONFIG_SYS_PROMPT "U-Boot> "
>> +#define CONFIG_AUTO_COMPLETE
>> +#define CONFIG_SYS_CBSIZE 256
>> +
>> +/* Print Buffer Size */
>> +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
>> +#define CONFIG_SYS_MAXARGS 16
>> +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
>> +
>> +#define CONFIG_SYS_MEMTEST_START 0x10000000
>> +#define CONFIG_SYS_MEMTEST_END 0x10010000
>> +
>> +#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
>> +#define CONFIG_SYS_HZ 1000
>> +
>> +#define CONFIG_CMDLINE_EDITING
>> +
>> +/* Physical Memory Map */
>> +#define CONFIG_NR_DRAM_BANKS 1
>> +#define PHYS_SDRAM MMDC0_ARB_BASE_ADDR
>> +#define PHYS_SDRAM_SIZE (1u * 1024 * 1024 * 1024)
>> +
>> +#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
>> +#define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
>> +#define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
>> +
>> +#define CONFIG_SYS_INIT_SP_OFFSET \
>> + (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
>> +#define CONFIG_SYS_INIT_SP_ADDR \
>> + (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
>> +
>> +/* FLASH and environment organization */
>> +#define CONFIG_SYS_NO_FLASH
>> +
>> +#define CONFIG_ENV_SIZE (8 * 1024)
>> +
>> +/* #define CONFIG_ENV_IS_IN_MMC */
>> +#define CONFIG_ENV_IS_IN_SPI_FLASH
>> +
>> +#if defined(CONFIG_ENV_IS_IN_MMC)
>> +#define CONFIG_ENV_OFFSET (6 * 64 * 1024)
>> +#define CONFIG_SYS_MMC_ENV_DEV 0
>> +#elif defined(CONFIG_ENV_IS_IN_SPI_FLASH)
>> +#define CONFIG_ENV_OFFSET (768 * 1024)
>> +#define CONFIG_ENV_SECT_SIZE (8 * 1024)
>> +#define CONFIG_ENV_SPI_BUS CONFIG_SF_DEFAULT_BUS
>> +#define CONFIG_ENV_SPI_CS CONFIG_SF_DEFAULT_CS
>> +#define CONFIG_ENV_SPI_MODE CONFIG_SF_DEFAULT_MODE
>> +#define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
>> +#endif
>> +
>> +#define CONFIG_OF_LIBFDT
>> +#define CONFIG_CMD_BOOTZ
>> +
>> +#define CONFIG_SYS_DCACHE_OFF
>> +
>> +#ifndef CONFIG_SYS_DCACHE_OFF
>> +#define CONFIG_CMD_CACHE
>> +#endif
>> +
>> +#endif /* __CONFIG_H */
>>
>
> Best regards,
> Stefano Babic
>
Thanks for the thorough and thoughtful review.
Regards,
Eric
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