From: Jagan Teki jagan@amarulasolutions.com
Add NAND support for Engicam Is.IoT MX6UL board.
Cc: Stefano Babic sbabic@denx.de Cc: Matteo Lisi matteo.lisi@engicam.com Cc: Michael Trimarchi michael@amarulasolutions.com Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- arch/arm/dts/Makefile | 3 +- arch/arm/dts/imx6ul-isiot-nand.dts | 50 +++++++++++++++++++++++++ board/engicam/isiotmx6ul/MAINTAINERS | 1 + board/engicam/isiotmx6ul/isiotmx6ul.c | 69 +++++++++++++++++++++++++++++++++++ configs/imx6ul_isiot_nand_defconfig | 46 +++++++++++++++++++++++ include/configs/imx6ul_isiot.h | 25 ++++++++++++- 6 files changed, 192 insertions(+), 2 deletions(-) create mode 100644 arch/arm/dts/imx6ul-isiot-nand.dts create mode 100644 configs/imx6ul_isiot_nand_defconfig
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index bd9c0dd..fb2d78a 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -303,7 +303,8 @@ dtb-$(CONFIG_MX6) += imx6ull-14x14-evk.dtb \ imx6q-icore.dtb \ imx6q-icore-rqs.dtb \ imx6ul-geam-kit.dtb \ - imx6ul-isiot-mmc.dtb + imx6ul-isiot-mmc.dtb \ + imx6ul-isiot-nand.dtb
dtb-$(CONFIG_MX7) += imx7-colibri.dtb
diff --git a/arch/arm/dts/imx6ul-isiot-nand.dts b/arch/arm/dts/imx6ul-isiot-nand.dts new file mode 100644 index 0000000..12a3528 --- /dev/null +++ b/arch/arm/dts/imx6ul-isiot-nand.dts @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2016 Amarula Solutions B.V. + * Copyright (C) 2016 Engicam S.r.l. + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file 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. + * + * This file 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. + * + * Or, alternatively + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +/dts-v1/; + +#include "imx6ul-isiot.dtsi" + +/ { + model = "Engicam Is.IoT MX6UL NAND Starterkit"; + compatible = "engicam,imx6ul-isiot", "fsl,imx6ul"; +}; diff --git a/board/engicam/isiotmx6ul/MAINTAINERS b/board/engicam/isiotmx6ul/MAINTAINERS index 0258531..e99e02e 100644 --- a/board/engicam/isiotmx6ul/MAINTAINERS +++ b/board/engicam/isiotmx6ul/MAINTAINERS @@ -4,3 +4,4 @@ S: Maintained F: board/engicam/isiotmx6ul F: include/configs/imx6ul_isiot.h F: configs/imx6ul_isiot_mmc_defconfig +F: configs/imx6ul_isiot_nand_defconfig diff --git a/board/engicam/isiotmx6ul/isiotmx6ul.c b/board/engicam/isiotmx6ul/isiotmx6ul.c index c0b18c3..ae3465f 100644 --- a/board/engicam/isiotmx6ul/isiotmx6ul.c +++ b/board/engicam/isiotmx6ul/isiotmx6ul.c @@ -37,11 +37,80 @@ int board_early_init_f(void) return 0; }
+#ifdef CONFIG_NAND_MXS + +#define GPMI_PAD_CTRL0 (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP) +#define GPMI_PAD_CTRL1 (PAD_CTL_DSE_40ohm | PAD_CTL_SPEED_MED | \ + PAD_CTL_SRE_FAST) +#define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1) + +static iomux_v3_cfg_t const nand_pads[] = { + MX6_PAD_NAND_DATA00__RAWNAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA01__RAWNAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA02__RAWNAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA03__RAWNAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA04__RAWNAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA05__RAWNAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA06__RAWNAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_DATA07__RAWNAND_DATA07 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_CLE__RAWNAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_ALE__RAWNAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_CE0_B__RAWNAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_RE_B__RAWNAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_WE_B__RAWNAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_WP_B__RAWNAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NAND_READY_B__RAWNAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), +}; + +static void setup_gpmi_nand(void) +{ + struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* config gpmi nand iomux */ + imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads)); + + clrbits_le32(&mxc_ccm->CCGR4, + MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK | + MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK | + MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK | + MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK | + MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK); + + /* + * config gpmi and bch clock to 100 MHz + * bch/gpmi select PLL2 PFD2 400M + * 100M = 400M / 4 + */ + clrbits_le32(&mxc_ccm->cscmr1, + MXC_CCM_CSCMR1_BCH_CLK_SEL | + MXC_CCM_CSCMR1_GPMI_CLK_SEL); + clrsetbits_le32(&mxc_ccm->cscdr1, + MXC_CCM_CSCDR1_BCH_PODF_MASK | + MXC_CCM_CSCDR1_GPMI_PODF_MASK, + (3 << MXC_CCM_CSCDR1_BCH_PODF_OFFSET) | + (3 << MXC_CCM_CSCDR1_GPMI_PODF_OFFSET)); + + /* enable gpmi and bch clock gating */ + setbits_le32(&mxc_ccm->CCGR4, + MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK | + MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK | + MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK | + MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK | + MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK); + + /* enable apbh clock gating */ + setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK); +} +#endif /* CONFIG_NAND_MXS */ + int board_init(void) { /* Address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+#ifdef CONFIG_NAND_MXS + setup_gpmi_nand(); +#endif return 0; }
diff --git a/configs/imx6ul_isiot_nand_defconfig b/configs/imx6ul_isiot_nand_defconfig new file mode 100644 index 0000000..745d10d --- /dev/null +++ b/configs/imx6ul_isiot_nand_defconfig @@ -0,0 +1,46 @@ +CONFIG_ARM=y +CONFIG_ARCH_MX6=y +CONFIG_TARGET_MX6UL_ISIOT=y +CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,ENV_IS_IN_NAND" +CONFIG_DEFAULT_FDT_FILE="imx6ul-isiot-nand.dtb" +CONFIG_DEFAULT_DEVICE_TREE="imx6ul-isiot-nand" +CONFIG_SYS_PROMPT="isiotmx6ul> " +CONFIG_SPL=y +CONFIG_BOOTDELAY=3 +CONFIG_BOARD_EARLY_INIT_F=y +CONFIG_DISPLAY_CPUINFO=y +CONFIG_HUSH_PARSER=y +CONFIG_AUTO_COMPLETE=y +CONFIG_SYS_MAXARGS=32 +CONFIG_FIT=y +CONFIG_FIT_VERBOSE=y +CONFIG_FIT_SIGNATURE=y +# CONFIG_CMD_IMLS is not set +# CONFIG_BLK is not set +# CONFIG_DM_MMC_OPS is not set +CONFIG_CMD_GPIO=y +CONFIG_CMD_MEMTEST=y +CONFIG_CMD_MII=y +CONFIG_CMD_PING=y +CONFIG_CMD_MMC=y +CONFIG_CMD_NAND=y +CONFIG_CMD_CACHE=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_EXT4_WRITE=y +CONFIG_CMD_FAT=y +CONFIG_CMD_FS_GENERIC=y +CONFIG_OF_LIBFDT=y +CONFIG_FEC_MXC=y +CONFIG_MXC_UART=y +CONFIG_NAND_MXS=y +CONFIG_IMX_THERMAL=y +CONFIG_PINCTRL=y +CONFIG_PINCTRL_IMX6=y +CONFIG_SYS_CONSOLE_IS_IN_ENV=y +CONFIG_SPL_LIBCOMMON_SUPPORT=y +CONFIG_SPL_LIBGENERIC_SUPPORT=y +CONFIG_SPL_SERIAL_SUPPORT=y +CONFIG_SPL_GPIO_SUPPORT=y +CONFIG_SPL_WATCHDOG_SUPPORT=y +CONFIG_SPL_DMA_SUPPORT=y diff --git a/include/configs/imx6ul_isiot.h b/include/configs/imx6ul_isiot.h index 5a3e05a..b137848 100644 --- a/include/configs/imx6ul_isiot.h +++ b/include/configs/imx6ul_isiot.h @@ -27,6 +27,10 @@ /* Environment in MMC */ # if defined(CONFIG_ENV_IS_IN_MMC) # define CONFIG_ENV_OFFSET 0x100000 +/* Environment in NAND */ +# elif defined(CONFIG_ENV_IS_IN_NAND) +# define CONFIG_ENV_OFFSET 0x400000 +# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE # endif #endif
@@ -128,6 +132,21 @@ # define CONFIG_SYS_FSL_ESDHC_ADDR 0 #endif
+/* NAND */ +#ifdef CONFIG_NAND_MXS +# define CONFIG_SYS_MAX_NAND_DEVICE 1 +# define CONFIG_SYS_NAND_BASE 0x40000000 +# define CONFIG_SYS_NAND_5_ADDR_CYCLE +# define CONFIG_SYS_NAND_ONFI_DETECTION +# define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE +# define CONFIG_SYS_NAND_U_BOOT_OFFS 0x200000 + +/* APBH DMA */ +# define CONFIG_APBH_DMA +# define CONFIG_APBH_DMA_BURST +# define CONFIG_APBH_DMA_BURST8 +#endif + /* Ethernet */ #ifdef CONFIG_FEC_MXC # define CONFIG_FEC_MXC_PHYADDR 0 @@ -140,7 +159,11 @@
/* SPL */ #ifdef CONFIG_SPL -# define CONFIG_SPL_MMC_SUPPORT +# ifdef CONFIG_NAND_MXS +# define CONFIG_SPL_NAND_SUPPORT +# else +# define CONFIG_SPL_MMC_SUPPORT +# endif
# include "imx6_spl.h" # ifdef CONFIG_SPL_BUILD