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/*
* Copyright (C) 2016 Amarula Solutions B.V.
* Copyright (C) 2016 Engicam S.r.l.
* Author: Jagan Teki <jagan@amarulasolutions.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mmc.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <linux/sizes.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/video.h>
#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 */
void setenv_fdt_file(void)
{
if (is_mx6dq())
setenv("fdt_file", "imx6q-icore.dtb");
else if(is_mx6dl() || is_mx6solo())
setenv("fdt_file", "imx6dl-icore.dtb");
}
#ifdef CONFIG_SPL_BUILD
/* MMC board initialization is needed till adding DM support in SPL */
#if defined(CONFIG_FSL_ESDHC) && !defined(CONFIG_DM_MMC)
#include <mmc.h>
#include <fsl_esdhc.h>
#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
static iomux_v3_cfg_t const usdhc1_pads[] = {
IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_GPIO_1__GPIO1_IO01 | MUX_PAD_CTRL(NO_PAD_CTRL)),/* CD */
};
#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 1)
struct fsl_esdhc_cfg usdhc_cfg[1] = {
{USDHC1_BASE_ADDR, 0, 4},
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
switch (cfg->esdhc_base) {
case USDHC1_BASE_ADDR:
ret = !gpio_get_value(USDHC1_CD_GPIO);
break;
}
return ret;
}
int board_mmc_init(bd_t *bis)
{
int i, ret;
/*
* According to the board_mmc_init() the following map is done:
* (U-boot device node) (Physical Port)
* mmc0 USDHC1
*/
for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
switch (i) {
case 0:
SETUP_IOMUX_PADS(usdhc1_pads);
gpio_direction_input(USDHC1_CD_GPIO);
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
break;
default:
printf("Warning - USDHC%d controller not supporting\n",
i + 1);
return 0;
}
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret) {
printf("Warning: failed to initialize mmc dev %d\n", i);
return ret;
}
}
return 0;
}
#endif
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
if (is_mx6dq() && !strcmp(name, "imx6q-icore"))
return 0;
else if ((is_mx6dl() || is_mx6solo()) && !strcmp(name, "imx6dl-icore"))
return 0;
else
return -1;
}
#endif
#endif /* CONFIG_SPL_BUILD */
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