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authorJagan Teki2016-10-25 11:53:23 +0530
committerStefano Babic2016-10-26 18:59:57 +0200
commit023ff2f732077a5b3f96e96f191b1045d45d16c4 (patch)
tree466986a788b43dbef1586e7af114077e9a1a6058 /board/engicam
parentdf10a850c5e3e1bfcd74a01f8478abd4dc88a55b (diff)
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>
Diffstat (limited to 'board/engicam')
-rw-r--r--board/engicam/icorem6/icorem6.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/board/engicam/icorem6/icorem6.c b/board/engicam/icorem6/icorem6.c
index a370c8bf8d9..c1520073a77 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;
}