The i.MX6Q/DL sabreauto board has one NAND socket, set the CONFIG_NAND_MXS and relevant NAND configurations to enable the MXS NAND flash driver. Add board level codes to set IOMUX and clock for GPMI-NAND and BCH module.
Signed-off-by: Ye.Li B37916@freescale.com --- Changes since v1: - Use "static" for gpmi pad setting variable. - Resolve line over 80 characters warning.
board/freescale/mx6qsabreauto/mx6qsabreauto.c | 66 +++++++++++++++++++++++++ include/configs/mx6qsabreauto.h | 16 ++++++ 2 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index 42ae6fa..c35dcaf 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -46,6 +46,11 @@ DECLARE_GLOBAL_DATA_PTR; PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+#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) + #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
int dram_init(void) @@ -200,6 +205,63 @@ int board_mmc_init(bd_t *bis) } #endif
+#ifdef CONFIG_NAND_MXS +static iomux_v3_cfg_t gpmi_pads[] = { + MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL0), + MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(GPMI_PAD_CTRL2), + MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(GPMI_PAD_CTRL1), +}; + +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(gpmi_pads, ARRAY_SIZE(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); + clrbits_le32(&mxc_ccm->CCGR4, + MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_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 mx6_rgmii_rework(struct phy_device *phydev) { unsigned short val; @@ -336,6 +398,10 @@ int board_early_init_f(void) #ifdef CONFIG_VIDEO_IPUV3 setup_display(); #endif + +#ifdef CONFIG_NAND_MXS + setup_gpmi_nand(); +#endif return 0; }
diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h index 235dd6d..3f1c88e 100644 --- a/include/configs/mx6qsabreauto.h +++ b/include/configs/mx6qsabreauto.h @@ -48,4 +48,20 @@ #define CONFIG_SYS_I2C_MXC #define CONFIG_SYS_I2C_SPEED 100000
+/* NAND flash command */ +#define CONFIG_CMD_NAND +#define CONFIG_CMD_NAND_TRIMFFS + +/* NAND stuff */ +#define 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 + +/* DMA stuff, needed for GPMI/MXS NAND support */ +#define CONFIG_APBH_DMA +#define CONFIG_APBH_DMA_BURST +#define CONFIG_APBH_DMA_BURST8 + #endif /* __MX6QSABREAUTO_CONFIG_H */