/* * Copyright (C) 2016 Amarula Solutions B.V. * Copyright (C) 2016 Engicam S.r.l. * Author: Jagan Teki * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include #include #include #include #include #include #include #include "../common/board.h" DECLARE_GLOBAL_DATA_PTR; #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)), }; 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 #if defined(CONFIG_VIDEO_IPUV3) static iomux_v3_cfg_t const rgb_pads[] = { IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK), IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00), IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01), IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02), IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03), IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04), IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05), IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06), IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07), IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08), IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09), IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10), IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11), IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12), IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13), IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14), IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15), IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16), IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17), }; static void enable_rgb(struct display_info_t const *dev) { SETUP_IOMUX_PADS(rgb_pads); } struct display_info_t const displays[] = { { .bus = -1, .addr = 0, .pixfmt = IPU_PIX_FMT_RGB666, .detect = NULL, .enable = enable_rgb, .mode = { .name = "Amp-WD", .refresh = 60, .xres = 800, .yres = 480, .pixclock = 30000, .left_margin = 30, .right_margin = 30, .upper_margin = 5, .lower_margin = 5, .hsync_len = 64, .vsync_len = 20, .sync = FB_SYNC_EXT, .vmode = FB_VMODE_NONINTERLACED } }, }; size_t display_count = ARRAY_SIZE(displays); void setup_display(void) { struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; int reg; enable_ipu_clock(); /* Turn on LDB0,IPU,IPU DI0 clocks */ reg = __raw_readl(&mxc_ccm->CCGR3); reg |= (MXC_CCM_CCGR3_LDB_DI0_MASK | 0xffff); writel(reg, &mxc_ccm->CCGR3); /* set LDB0, LDB1 clk select to 011/011 */ reg = readl(&mxc_ccm->cs2cdr); reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK | MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK); reg |= (3 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET) | (3 << MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET); writel(reg, &mxc_ccm->cs2cdr); reg = readl(&mxc_ccm->cscmr2); reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV; writel(reg, &mxc_ccm->cscmr2); reg = readl(&mxc_ccm->chsccdr); reg |= (CHSCCDR_CLK_SEL_LDB_DI0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET); writel(reg, &mxc_ccm->chsccdr); reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES | IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH | IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW | IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG | IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT | IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG | IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT | IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED | IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0; writel(reg, &iomux->gpr[2]); reg = readl(&iomux->gpr[3]); reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK) | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0 << IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET); writel(reg, &iomux->gpr[3]); } #endif /* CONFIG_VIDEO_IPUV3 */