imx6: icorem6: Add NAND support

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>

diff --git a/board/engicam/icorem6/icorem6.c b/board/engicam/icorem6/icorem6.c
index a370c8bf8d9f7ed6a3a93b0ebf9414ce44a7b98d..c1520073a77da397144ebcdef7d57b68bd95ebee 100644 (file)
--- 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 (file)
index 0000000..4919d44
--- /dev/null
+++ b/configs/imx6qdl_icore_nand_defconfig
@@ -0,0 +1,39 @@
+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_BLK is not set
+# CONFIG_DM_MMC_OPS is not set
+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 6b5844701a7382de28d08c505591694d4c300de3..cd3aa437716881b315df678939cc821225e46a83 100644 (file)
--- 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