diff options
Diffstat (limited to 'roms/u-boot/board/technexion/pico-imx6ul')
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/Kconfig | 15 | ||||
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/MAINTAINERS | 10 | ||||
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/Makefile | 5 | ||||
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/README | 159 | ||||
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/imximage.cfg | 96 | ||||
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/pico-imx6ul.c | 230 | ||||
| -rw-r--r-- | roms/u-boot/board/technexion/pico-imx6ul/spl.c | 186 |
7 files changed, 701 insertions, 0 deletions
diff --git a/roms/u-boot/board/technexion/pico-imx6ul/Kconfig b/roms/u-boot/board/technexion/pico-imx6ul/Kconfig new file mode 100644 index 000000000..81acd611f --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/Kconfig @@ -0,0 +1,15 @@ +if TARGET_PICO_IMX6UL + +config SYS_BOARD + default "pico-imx6ul" + +config SYS_VENDOR + default "technexion" + +config SYS_SOC + default "mx6" + +config SYS_CONFIG_NAME + default "pico-imx6ul" + +endif diff --git a/roms/u-boot/board/technexion/pico-imx6ul/MAINTAINERS b/roms/u-boot/board/technexion/pico-imx6ul/MAINTAINERS new file mode 100644 index 000000000..f94a011ee --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/MAINTAINERS @@ -0,0 +1,10 @@ +TechNexion PICO-IMX6UL board +M: Richard Hu <richard.hu@technexion.com> +M: Fabio Estevam <festevam@gmail.com> +S: Maintained +F: board/technexion/pico-imx6ul/ +F: include/configs/pico-imx6ul.h +F: configs/pico-imx6ul_defconfig +F: configs/pico-dwarf-imx6ul_defconfig +F: configs/pico-hobbit-imx6ul_defconfig +F: configs/pico-pi-imx6ul_defconfig diff --git a/roms/u-boot/board/technexion/pico-imx6ul/Makefile b/roms/u-boot/board/technexion/pico-imx6ul/Makefile new file mode 100644 index 000000000..b7493df01 --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# (C) Copyright 2015 Technexion Ltd. +# (C) Copyright 2015 Freescale Semiconductor, Inc. + +obj-y := pico-imx6ul.o spl.o diff --git a/roms/u-boot/board/technexion/pico-imx6ul/README b/roms/u-boot/board/technexion/pico-imx6ul/README new file mode 100644 index 000000000..e58640c55 --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/README @@ -0,0 +1,159 @@ +How to Update U-Boot on Pico-imx6ul board +----------------------------------------- + +Required software on the host PC: + +- imx_usb_loader: https://github.com/boundarydevices/imx_usb_loader + +- dfu-util: http://dfu-util.sourceforge.net/releases/ + +Build U-Boot for Pico: + +$ make mrproper +$ make pico-imx6ul_defconfig +$ make + +This generates the SPL and u-boot-dtb.img binaries. + +1. Loading U-Boot via USB Serial Download Protocol + +Note: This method is convenient for development purposes. +If the eMMC has already a U-Boot flashed with DFU support then +the user can go to step 2 below in order to update U-Boot. + +Put pico board in USB download mode (refer to the document +https://www.nxp.com/files-static/32bit/doc/quick_start_guide/PICO-IMX6UL-QSG.pdf +Figure 6a at page 7). + +Connect a USB to serial adapter between the host PC and pico. + +Connect a USB cable between the OTG pico port and the host PC. + +Open a terminal program such as minicom. + +Copy SPL and u-boot-dtb.img to the imx_usb_loader folder. + +Load the SPL binary via USB: + +$ sudo ./imx_usb SPL + +Load the u-boot-dtb.img binary via USB: + +$ sudo ./imx_usb u-boot-dtb.img + +Then U-Boot starts and its messages appear in the console program. + +Use the default environment variables: + +=> env default -f -a +=> saveenv + +2. Flashing U-Boot into the eMMC + +Run the DFU agent so we can flash the new images using dfu-util tool: + +=> dfu 0 mmc 0 + +Flash SPL and u-boot-dtb.img into the eMMC running the following commands on a PC: + +$ sudo dfu-util -D SPL -a spl + +$ sudo dfu-util -D u-boot-dtb.img -a u-boot + +Remove power from the pico board. + +Put pico board into normal boot mode. + +Power up the board and the new updated U-Boot should boot from eMMC. + +Booting in Falcon mode +====================== + +Generate a uImage kernel: + +$ make imx_v6_v7_defconfig (Using the default imx_v6_v7_defconfig configuration +just for an example. In order to boot faster the user should customize the +defconfig by only enabling the minimal required drivers). + +$ make -j4 uImage LOADADDR=0x80008000 + +$ cp arch/arm/boot/uImage /tftpboot +$ cp arch/arm/boot/dts/imx6ul-pico-hobbit.dtb /tftpboot + +In the U-Boot prompt: + +Setup the server and board IP addresses: +=> setenv serverip 192.168.0.10 +=> setenv ipaddr 192.168.0.11 + +Get the dtb file: +=> tftp ${fdt_addr} imx6ul-pico-hobbit.dtb + +Get the kernel: +=> tftp ${loadaddr} uImage + +Write the kernel at 2MB offset: +=> mmc write ${loadaddr} 0x1000 0x5000 + +Setup the bootargs: +=> setenv bootargs 'console=ttymxc5,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait rw' + +Prepare args: +=> spl export fdt ${loadaddr} - ${fdt_addr} +## Booting kernel from Legacy Image at 82000000 ... + Image Name: Linux-4.19.0-rc2-next-20180905-0 + Image Type: ARM Linux Kernel Image (uncompressed) + Data Size: 8365608 Bytes = 8 MiB + Load Address: 80008000 + Entry Point: 80008000 + Verifying Checksum ... OK +## Flattened Device Tree blob at 83000000 + Booting using the fdt blob at 0x83000000 + Loading Kernel Image ... OK + Using Device Tree in place at 83000000, end 83009c63 +subcommand not supported +subcommand not supported + Using Device Tree in place at 83000000, end 8300cc63 +Argument image is now in RAM: 0x83000000 + +Write 1MB of args data (0x800 sectors) to 1MB offset (0x800 sectors): + +=> mmc write ${fdt_addr} 0x800 0x800 + +In order to boot with Falcon mode, activate the CONFIG_SPL_OS_BOOT +option in the defconfig + +--- a/configs/pico-hobbit-imx6ul_defconfig ++++ b/configs/pico-hobbit-imx6ul_defconfig +@@ -53,3 +53,4 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x0525 + CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5 + CONFIG_CI_UDC=y + CONFIG_OF_LIBFDT=y ++CONFIG_SPL_OS_BOOT=y + +Then rebuild U-Boot: + +$ make pico-hobbit-imx6ul_defconfig +$ make -j4 + +Launch UMS: +=> ums 0 mmc 0 + +Flash the new binaries: + +$ sudo dd if=SPL of=/dev/sdX bs=1k seek=1; sync +$ sudo dd if=u-boot-dtb.img of=/dev/sdX bs=1k seek=69; sync + +And then SPL binary will load and jump directly to the kernel: + +U-Boot SPL 2018.09-rc2-00156-g8c46f15-dirty (Sep 05 2018 - 16:24:05 -0300) +Trying to boot from MMC1 +[ 0.000000] Booting Linux on physical CPU 0x0 +[ 0.000000] Linux version 4.19.0-rc2-next-20180905-00001-gb805e2d (fabio@fabio-Latitude-E5450) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9)) #533 SMP Wed Sep 5 16:21:03 -03 2018 +[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d +[ 0.000000] CPU: div instructions available: patching division code +[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache +[ 0.000000] OF: fdt: Machine model: Technexion Pico i.MX6UL Board +[ 0.000000] Memory policy: Data cache writealloc +[ 0.000000] cma: Reserved 64 MiB at 0x8c000000 +... diff --git a/roms/u-boot/board/technexion/pico-imx6ul/imximage.cfg b/roms/u-boot/board/technexion/pico-imx6ul/imximage.cfg new file mode 100644 index 000000000..993c1da67 --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/imximage.cfg @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2015 Freescale Semiconductor, Inc. + * + * Refer doc/imx/mkimage/imximage.txt for more details about how-to configure + * and create imximage boot image + * + * The syntax is taken as close as possible with the kwbimage + */ + +#define __ASSEMBLY__ +#include <config.h> + +/* image version */ + +IMAGE_VERSION 2 + +/* + * Boot Device : one of + * spi/sd/nand/onenand, qspi/nor + */ +BOOT_FROM sd + +/* + * Device Configuration Data (DCD) + * + * Each entry must have the format: + * Addr-type Address Value + * + * where: + * Addr-type register length (1,2 or 4 bytes) + * Address absolute address of the register + * value value to be stored in the register + */ + +/* Enable all clocks */ +DATA 4 0x020c4068 0xffffffff +DATA 4 0x020c406c 0xffffffff +DATA 4 0x020c4070 0xffffffff +DATA 4 0x020c4074 0xffffffff +DATA 4 0x020c4078 0xffffffff +DATA 4 0x020c407c 0xffffffff +DATA 4 0x020c4080 0xffffffff + +DATA 4 0x020E04B4 0x000C0000 +DATA 4 0x020E04AC 0x00000000 +DATA 4 0x020E027C 0x00000030 +DATA 4 0x020E0250 0x00000030 +DATA 4 0x020E024C 0x00000030 +DATA 4 0x020E0490 0x00000030 +DATA 4 0x020E0288 0x00000030 +DATA 4 0x020E0270 0x00000000 +DATA 4 0x020E0260 0x00000030 +DATA 4 0x020E0264 0x00000030 +DATA 4 0x020E04A0 0x00000030 +DATA 4 0x020E0494 0x00020000 +DATA 4 0x020E0280 0x00000030 +DATA 4 0x020E0284 0x00000030 +DATA 4 0x020E04B0 0x00020000 +DATA 4 0x020E0498 0x00000030 +DATA 4 0x020E04A4 0x00000030 +DATA 4 0x020E0244 0x00000030 +DATA 4 0x020E0248 0x00000030 +DATA 4 0x021B001C 0x00008000 +DATA 4 0x021B0800 0xA1390003 +DATA 4 0x021B080C 0x00000000 +DATA 4 0x021B083C 0x01380134 +DATA 4 0x021B0848 0x40404244 +DATA 4 0x021B0850 0x40405050 +DATA 4 0x021B081C 0x33333333 +DATA 4 0x021B0820 0x33333333 +DATA 4 0x021B082C 0xf3333333 +DATA 4 0x021B0830 0xf3333333 +DATA 4 0x021B08C0 0x00921012 +DATA 4 0x021B08b8 0x00000800 +DATA 4 0x021B0004 0x0002002D +DATA 4 0x021B0008 0x00333030 +DATA 4 0x021B000C 0x676B52F3 +DATA 4 0x021B0010 0xB66D8B63 +DATA 4 0x021B0014 0x01FF00DB +DATA 4 0x021B0018 0x00201740 +DATA 4 0x021B001C 0x00008000 +DATA 4 0x021B002C 0x000026D2 +DATA 4 0x021B0030 0x006B1023 +DATA 4 0x021B0040 0x00000047 +DATA 4 0x021B0000 0x83180000 +DATA 4 0x021B001C 0x02008032 +DATA 4 0x021B001C 0x00008033 +DATA 4 0x021B001C 0x00048031 +DATA 4 0x021B001C 0x15208030 +DATA 4 0x021B001C 0x04008040 +DATA 4 0x021B0020 0x00000800 +DATA 4 0x021B0818 0x00000227 +DATA 4 0x021B0004 0x0002552D +DATA 4 0x021B0404 0x00011006 +DATA 4 0x021B001C 0x00000000 diff --git a/roms/u-boot/board/technexion/pico-imx6ul/pico-imx6ul.c b/roms/u-boot/board/technexion/pico-imx6ul/pico-imx6ul.c new file mode 100644 index 000000000..682c88dee --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/pico-imx6ul.c @@ -0,0 +1,230 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2015 Technexion Ltd. + * + * Author: Richard Hu <richard.hu@technexion.com> + */ + +#include <init.h> +#include <net.h> +#include <asm/arch/clock.h> +#include <asm/arch/iomux.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/global_data.h> +#include <asm/gpio.h> +#include <asm/mach-imx/iomux-v3.h> +#include <asm/io.h> +#include <common.h> +#include <miiphy.h> +#include <linux/delay.h> +#include <linux/sizes.h> +#include <usb.h> +#include <power/pmic.h> +#include <power/pfuze3000_pmic.h> +#include "../../freescale/common/pfuze.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 OTG_ID_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 MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE) + +#define LCD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ + PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm) + +static int setup_fec(void) +{ + struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + int ret; + + clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK, + IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK); + + ret = enable_fec_anatop_clock(1, ENET_50MHZ); + if (ret) + return ret; + + enable_enet_clk(1); + + return 0; +} + +#ifdef CONFIG_VIDEO_MXS +static iomux_v3_cfg_t const lcd_pads[] = { + MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_ENABLE__LCDIF_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_HSYNC__LCDIF_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_VSYNC__LCDIF_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA00__LCDIF_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA01__LCDIF_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA02__LCDIF_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA03__LCDIF_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA04__LCDIF_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA05__LCDIF_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA06__LCDIF_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA07__LCDIF_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA08__LCDIF_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA09__LCDIF_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA10__LCDIF_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA11__LCDIF_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA12__LCDIF_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA13__LCDIF_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA14__LCDIF_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA15__LCDIF_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA16__LCDIF_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA17__LCDIF_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA18__LCDIF_DATA18 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA19__LCDIF_DATA19 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA20__LCDIF_DATA20 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA21__LCDIF_DATA21 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA22__LCDIF_DATA22 | MUX_PAD_CTRL(LCD_PAD_CTRL), + MX6_PAD_LCD_DATA23__LCDIF_DATA23 | MUX_PAD_CTRL(LCD_PAD_CTRL), + /* LCD_BLT_CTRL: GPIO for Brightness adjustment */ + MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* LCD_VDD_EN: LCD enabled */ + MX6_PAD_JTAG_TMS__GPIO1_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +void setup_lcd(void) +{ + imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads)); + gpio_request(IMX_GPIO_NR(4, 10), "lcd_brightness"); + gpio_request(IMX_GPIO_NR(1, 11), "lcd_enable"); + /* Set Brightness to high */ + gpio_direction_output(IMX_GPIO_NR(4, 10) , 1); + /* Set LCD enable to high */ + gpio_direction_output(IMX_GPIO_NR(1, 11) , 1); +} +#endif + +int board_phy_config(struct phy_device *phydev) +{ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190); + + if (phydev->drv->config) + phydev->drv->config(phydev); + + return 0; +} + +int dram_init(void) +{ + gd->ram_size = imx_ddr_size(); + + return 0; +} + +static iomux_v3_cfg_t const uart6_pads[] = { + MX6_PAD_CSI_MCLK__UART6_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), + MX6_PAD_CSI_PIXCLK__UART6_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +#define USB_OTHERREGS_OFFSET 0x800 +#define UCTRL_PWR_POL (1 << 9) + +static iomux_v3_cfg_t const usb_otg_pad[] = { + MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL), +}; + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart6_pads, ARRAY_SIZE(uart6_pads)); +} + +static void setup_usb(void) +{ + imx_iomux_v3_setup_multiple_pads(usb_otg_pad, ARRAY_SIZE(usb_otg_pad)); +} + +int board_early_init_f(void) +{ + setup_iomux_uart(); + + return 0; +} + +#ifdef CONFIG_DM_PMIC +int power_init_board(void) +{ + struct udevice *dev; + int ret, dev_id, rev_id; + + ret = pmic_get("pfuze3000@8", &dev); + if (ret == -ENODEV) + return 0; + if (ret != 0) + return ret; + + dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID); + rev_id = pmic_reg_read(dev, PFUZE3000_REVID); + printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id); + + /* disable Low Power Mode during standby mode */ + pmic_reg_write(dev, PFUZE3000_LDOGCTL, 0x1); + + /* SW1B step ramp up time from 2us to 4us/25mV */ + pmic_reg_write(dev, PFUZE3000_SW1BCONF, 0x40); + + /* SW1B mode to APS/PFM */ + pmic_reg_write(dev, PFUZE3000_SW1BMODE, 0xc); + + /* SW1B standby voltage set to 0.975V */ + pmic_reg_write(dev, PFUZE3000_SW1BSTBY, 0xb); + + return 0; +} +#endif + +int board_usb_phy_mode(int port) +{ + if (port == 1) + return USB_INIT_HOST; + else + return USB_INIT_DEVICE; +} + +int board_ehci_hcd_init(int port) +{ + u32 *usbnc_usb_ctrl; + + if (port > 1) + return -EINVAL; + + usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + + port * 4); + + /* Set Power polarity */ + setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); + + return 0; +} + +int board_init(void) +{ + /* Address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + setup_fec(); + setup_usb(); +#ifdef CONFIG_VIDEO_MXS + setup_lcd(); +#endif + return 0; +} + +int checkboard(void) +{ + puts("Board: PICO-IMX6UL-EMMC\n"); + + return 0; +} diff --git a/roms/u-boot/board/technexion/pico-imx6ul/spl.c b/roms/u-boot/board/technexion/pico-imx6ul/spl.c new file mode 100644 index 000000000..251f5a1b7 --- /dev/null +++ b/roms/u-boot/board/technexion/pico-imx6ul/spl.c @@ -0,0 +1,186 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include <common.h> +#include <cpu_func.h> +#include <hang.h> +#include <init.h> +#include <asm/arch/clock.h> +#include <asm/arch/iomux.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/mx6ul_pins.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/mach-imx/iomux-v3.h> +#include <asm/mach-imx/boot_mode.h> +#include <fsl_esdhc_imx.h> +#include <linux/libfdt.h> +#include <spl.h> + +#if defined(CONFIG_SPL_BUILD) + +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + /* Break into full U-Boot on 'c' */ + if (serial_tstc() && serial_getc() == 'c') + return 1; + + return 0; +} +#endif + +#include <asm/arch/mx6-ddr.h> + +static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = { + .grp_addds = 0x00000030, + .grp_ddrmode_ctl = 0x00020000, + .grp_b0ds = 0x00000030, + .grp_ctlds = 0x00000030, + .grp_b1ds = 0x00000030, + .grp_ddrpke = 0x00000000, + .grp_ddrmode = 0x00020000, + .grp_ddr_type = 0x00080000, +}; + +static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = { + .dram_dqm0 = 0x00000030, + .dram_dqm1 = 0x00000030, + .dram_ras = 0x00000030, + .dram_cas = 0x00000030, + .dram_odt0 = 0x00000030, + .dram_odt1 = 0x00000030, + .dram_sdba2 = 0x00000000, + .dram_sdclk_0 = 0x00000030, + .dram_sdqs0 = 0x00000030, + .dram_sdqs1 = 0x00000030, + .dram_reset = 0x00000030, +}; + +static struct mx6_mmdc_calibration mx6_mmcd_calib = { + .p0_mpwldectrl0 = 0x00000000, + .p0_mpdgctrl0 = 0x01380134, + .p0_mprddlctl = 0x40404244, + .p0_mpwrdlctl = 0x40405050, +}; + +static struct mx6_ddr_sysinfo ddr_sysinfo = { + .dsize = 0, + .cs1_mirror = 0, + .cs_density = 32, + .ncs = 1, + .bi_on = 1, + .rtt_nom = 1, + .rtt_wr = 0, + .ralat = 5, + .walat = 0, + .mif3_mode = 3, + .rst_to_cke = 0x23, + .sde_to_rst = 0x10, + .refsel = 1, + .refr = 3, +}; + +static struct mx6_ddr3_cfg mem_ddr = { + .mem_speed = 1333, + .density = 2, + .width = 16, + .banks = 8, + .coladdr = 10, + .pagesz = 2, + .trcd = 1350, + .trcmin = 4950, + .trasmin = 3600, +}; + +static void ccgr_init(void) +{ + struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + writel(0xFFFFFFFF, &ccm->CCGR0); + writel(0xFFFFFFFF, &ccm->CCGR1); + writel(0xFFFFFFFF, &ccm->CCGR2); + writel(0xFFFFFFFF, &ccm->CCGR3); + writel(0xFFFFFFFF, &ccm->CCGR4); + writel(0xFFFFFFFF, &ccm->CCGR5); + writel(0xFFFFFFFF, &ccm->CCGR6); +} + +static void imx6ul_spl_dram_cfg_size(u32 ram_size) +{ + if (ram_size == SZ_256M) + mem_ddr.rowaddr = 14; + else + mem_ddr.rowaddr = 15; + + mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs); + mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr); +} + +static void imx6ul_spl_dram_cfg(void) +{ + ulong ram_size_test, ram_size = 0; + + for (ram_size = SZ_512M; ram_size >= SZ_256M; ram_size >>= 1) { + imx6ul_spl_dram_cfg_size(ram_size); + ram_size_test = get_ram_size((long int *)PHYS_SDRAM, ram_size); + if (ram_size_test == ram_size) + break; + } + + if (ram_size < SZ_256M) { + puts("ERROR: DRAM size detection failed\n"); + hang(); + } +} + +void board_init_f(ulong dummy) +{ + ccgr_init(); + arch_cpu_init(); + board_early_init_f(); + timer_init(); + preloader_console_init(); + imx6ul_spl_dram_cfg(); + memset(__bss_start, 0, __bss_end - __bss_start); + board_init_r(NULL, 0); +} + +void reset_cpu(void) +{ +} + +#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +static iomux_v3_cfg_t const usdhc1_pads[] = { + MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC1_BASE_ADDR}, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + return 1; +} + +int board_mmc_init(struct bd_info *bis) +{ + imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} +#endif |