From: Jagan Teki jagan@amarulasolutions.com
Add NAND support for Engicam i.CoreM6 qdl board.
Boot Log: --------
U-Boot SPL 2016.09-rc2-30755-gd3dc581-dirty (Sep 28 2016 - 23:00:43) Trying to boot from NAND NAND : 512 MiB
U-Boot 2016.09-rc2-30755-gd3dc581-dirty (Sep 28 2016 - 23:00:43 +0530)
CPU: Freescale i.MX6SOLO rev1.3 at 792MHz CPU: Industrial temperature grade (-40C to 105C) at 55C Reset cause: WDOG Model: Engicam i.CoreM6 DualLite/Solo Starter Kit DRAM: 256 MiB NAND: 512 MiB MMC: FSL_SDHC: 0 In: serial Out: serial Err: serial Net: FEC [PRIME] Hit any key to stop autoboot: 0 icorem6qdl>
Cc: Scott Wood oss@buserror.net Cc: Stefano Babic sbabic@denx.de Cc: Peng Fan peng.fan@nxp.com Cc: Matteo Lisi matteo.lisi@engicam.com Cc: Michael Trimarchi michael@amarulasolutions.com Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- board/engicam/icorem6/icorem6.c | 63 ++++++++++++++++++++++++++++++++++++ configs/imx6qdl_icore_nand_defconfig | 37 +++++++++++++++++++++ include/configs/imx6qdl_icore.h | 25 +++++++++++++- 3 files changed, 124 insertions(+), 1 deletion(-) create mode 100644 configs/imx6qdl_icore_nand_defconfig
diff --git a/board/engicam/icorem6/icorem6.c b/board/engicam/icorem6/icorem6.c index a370c8b..c152007 100644 --- a/board/engicam/icorem6/icorem6.c +++ b/board/engicam/icorem6/icorem6.c @@ -101,6 +101,66 @@ int board_eth_init(bd_t *bis) } #endif
+#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) + +iomux_v3_cfg_t gpmi_pads[] = { + IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL0)), + IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2)), + IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07 | 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 */ + SETUP_IOMUX_PADS(gpmi_pads); + + /* gate ENFC_CLK_ROOT clock first,before clk source switch */ + clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK); + + /* config gpmi and bch clock to 100 MHz */ + clrsetbits_le32(&mxc_ccm->cs2cdr, + MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK | + MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK | + MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK, + MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) | + MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) | + MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)); + + /* enable ENFC_CLK_ROOT clock */ + setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK); + + /* 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_OFFSET); + + /* enable apbh clock gating */ + setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK); +} +#endif + int board_early_init_f(void) { SETUP_IOMUX_PADS(uart4_pads); @@ -113,6 +173,9 @@ 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/imx6qdl_icore_nand_defconfig b/configs/imx6qdl_icore_nand_defconfig new file mode 100644 index 0000000..8ac3099 --- /dev/null +++ b/configs/imx6qdl_icore_nand_defconfig @@ -0,0 +1,37 @@ +CONFIG_ARM=y +CONFIG_ARCH_MX6=y +CONFIG_TARGET_MX6Q_ICORE=y +CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,ENV_IS_IN_NAND" +CONFIG_DEFAULT_FDT_FILE="imx6dl-icore.dtb" +CONFIG_DEFAULT_DEVICE_TREE="imx6dl-icore" +CONFIG_SYS_PROMPT="icorem6qdl> " +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_CMD_IMLS is not set +CONFIG_CMD_BOOTZ=y +CONFIG_CMD_GPIO=y +CONFIG_CMD_MII=y +CONFIG_CMD_PING=y +CONFIG_CMD_MEMTEST=y +CONFIG_CMD_NAND=y +CONFIG_CMD_CACHE=y +CONFIG_OF_LIBFDT=y +CONFIG_FEC_MXC=y +CONFIG_MXC_UART=y +CONFIG_NAND_MXS=y +CONFIG_NETDEVICES=y +CONFIG_IMX_THERMAL=y +CONFIG_PINCTRL=y +CONFIG_PINCTRL_IMX6=y +CONFIG_SPL_LIBCOMMON_SUPPORT=y +CONFIG_SPL_LIBGENERIC_SUPPORT=y +CONFIG_SPL_SERIAL_SUPPORT=y +CONFIG_SPL_I2C_SUPPORT=y +CONFIG_SPL_GPIO_SUPPORT=y +CONFIG_SPL_WATCHDOG_SUPPORT=y +CONFIG_SPL_DMA_SUPPORT=y diff --git a/include/configs/imx6qdl_icore.h b/include/configs/imx6qdl_icore.h index 6b58447..cd3aa43 100644 --- a/include/configs/imx6qdl_icore.h +++ b/include/configs/imx6qdl_icore.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
@@ -111,6 +115,20 @@ # define CONFIG_SYS_FSL_ESDHC_ADDR USDHC2_BASE_ADDR #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 + +# define CONFIG_APBH_DMA +# define CONFIG_APBH_DMA_BURST +# define CONFIG_APBH_DMA_BURST8 +#endif + /* Ethernet */ #ifdef CONFIG_FEC_MXC # define IMX_FEC_BASE ENET_BASE_ADDR @@ -125,7 +143,12 @@
/* 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 # undef CONFIG_DM_GPIO