upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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584 lines
16 KiB
584 lines
16 KiB
/*
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* Copyright (C) 2016 Stefano Babic <sbabic@denx.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Please note: there are two version of the board
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* one with NAND and the other with eMMC.
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* Both NAND and eMMC cannot be set because they share the
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* same pins (SD4)
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/mx6-ddr.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#include <asm/imx-common/iomux-v3.h>
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#include <asm/imx-common/boot_mode.h>
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#include <asm/imx-common/mxc_i2c.h>
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#include <asm/imx-common/spi.h>
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#include <linux/errno.h>
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#include <asm/gpio.h>
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#include <mmc.h>
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#include <i2c.h>
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#include <fsl_esdhc.h>
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#include <nand.h>
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#include <miiphy.h>
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#include <netdev.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/sections.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
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PAD_CTL_SRE_FAST | PAD_CTL_HYS)
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#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
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#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
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#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
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PAD_CTL_ODE | PAD_CTL_SRE_FAST)
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#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
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#define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
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#define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
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PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
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#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14)
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#define USDHC1_CD_GPIO IMX_GPIO_NR(6, 31)
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#define USER_LED IMX_GPIO_NR(1, 4)
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#define IMX6Q_DRIVE_STRENGTH 0x30
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int dram_init(void)
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{
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gd->ram_size = imx_ddr_size();
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return 0;
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}
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void board_turn_off_led(void)
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{
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gpio_direction_output(USER_LED, 0);
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}
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static iomux_v3_cfg_t const uart1_pads[] = {
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MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static iomux_v3_cfg_t const enet_pads[] = {
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MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
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MX6_PAD_SD2_DAT1__GPIO1_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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static iomux_v3_cfg_t const ecspi1_pads[] = {
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MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
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MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
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MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
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MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
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};
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/* NAND */
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static iomux_v3_cfg_t const nfc_pads[] = {
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MX6_PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL),
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MX6_PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NAND_PAD_CTRL),
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};
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/* GPIOS */
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static iomux_v3_cfg_t const gpios_pads[] = {
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};
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static struct i2c_pads_info i2c_pad_info2 = {
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.scl = {
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.i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
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.gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
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.gp = IMX_GPIO_NR(1, 5)
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},
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.sda = {
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.i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD,
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.gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD,
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.gp = IMX_GPIO_NR(1, 6)
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}
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};
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static struct fsl_esdhc_cfg usdhc_cfg[] = {
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{.esdhc_base = USDHC1_BASE_ADDR,
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.max_bus_width = 4},
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#ifndef CONFIG_CMD_NAND
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{USDHC4_BASE_ADDR},
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#endif
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};
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static iomux_v3_cfg_t const usdhc1_pads[] = {
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MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
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};
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#ifndef CONFIG_CMD_NAND
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static iomux_v3_cfg_t const usdhc4_pads[] = {
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MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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#endif
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int board_mmc_get_env_dev(int devno)
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{
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return devno - 1;
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}
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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int ret = 0;
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switch (cfg->esdhc_base) {
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case USDHC1_BASE_ADDR:
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ret = !gpio_get_value(USDHC1_CD_GPIO);
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break;
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case USDHC4_BASE_ADDR:
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ret = 1; /* eMMC/uSDHC4 is always present */
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break;
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}
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return ret;
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}
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int board_mmc_init(bd_t *bis)
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{
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#ifndef CONFIG_SPL_BUILD
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int ret;
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int i;
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for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
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switch (i) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
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gpio_direction_input(USDHC1_CD_GPIO);
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
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break;
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#ifndef CONFIG_CMD_NAND
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case 1:
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imx_iomux_v3_setup_multiple_pads(
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usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
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break;
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#endif
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default:
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printf("Warning: you configured more USDHC controllers"
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"(%d) then supported by the board (%d)\n",
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i + 1, CONFIG_SYS_FSL_USDHC_NUM);
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return -EINVAL;
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}
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ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
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if (ret)
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return ret;
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}
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return 0;
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#else
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struct src *psrc = (struct src *)SRC_BASE_ADDR;
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unsigned reg = readl(&psrc->sbmr1) >> 11;
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/*
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* Upon reading BOOT_CFG register the following map is done:
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* Bit 11 and 12 of BOOT_CFG register can determine the current
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* mmc port
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* 0x1 SD1
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* 0x2 SD2
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* 0x3 SD4
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*/
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switch (reg & 0x3) {
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case 0x0:
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imx_iomux_v3_setup_multiple_pads(
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usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
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gpio_direction_input(USDHC1_CD_GPIO);
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usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
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usdhc_cfg[0].max_bus_width = 4;
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gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
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break;
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}
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return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
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#endif
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}
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static void setup_iomux_uart(void)
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{
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imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
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}
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static void setup_iomux_enet(void)
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{
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imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
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gpio_direction_output(ENET_PHY_RESET_GPIO, 0);
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mdelay(10);
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gpio_set_value(ENET_PHY_RESET_GPIO, 1);
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mdelay(30);
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}
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static void setup_spi(void)
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{
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gpio_request(IMX_GPIO_NR(3, 19), "spi_cs0");
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gpio_direction_output(IMX_GPIO_NR(3, 19), 1);
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imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
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enable_spi_clk(true, 0);
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}
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#ifdef CONFIG_CMD_NAND
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static void setup_gpmi_nand(void)
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{
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struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
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/* config gpmi nand iomux */
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imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
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/* gate ENFC_CLK_ROOT clock first,before clk source switch */
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clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
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/* config gpmi and bch clock to 100 MHz */
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clrsetbits_le32(&mxc_ccm->cs2cdr,
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MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
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MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
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MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
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MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
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MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
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MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
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/* enable ENFC_CLK_ROOT clock */
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setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
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/* enable gpmi and bch clock gating */
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setbits_le32(&mxc_ccm->CCGR4,
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MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
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MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
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MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
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/* enable apbh clock gating */
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setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
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}
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#endif
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int board_spi_cs_gpio(unsigned bus, unsigned cs)
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{
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if (bus != 0 || (cs != 0))
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return -EINVAL;
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return IMX_GPIO_NR(3, 19);
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}
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|
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int board_eth_init(bd_t *bis)
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{
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setup_iomux_enet();
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return cpu_eth_init(bis);
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}
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|
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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return 0;
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}
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|
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
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#ifdef CONFIG_SYS_I2C_MXC
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setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
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#endif
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#ifdef CONFIG_MXC_SPI
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setup_spi();
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#endif
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#ifdef CONFIG_CMD_NAND
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setup_gpmi_nand();
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#endif
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return 0;
|
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}
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|
|
|
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#ifdef CONFIG_CMD_BMODE
|
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/*
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* BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4
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|
* see Table 8-11 and Table 5-9
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|
* BOOT_CFG1[7] = 1 (boot from NAND)
|
|
* BOOT_CFG1[5] = 0 - raw NAND
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|
* BOOT_CFG1[4] = 0 - default pad settings
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* BOOT_CFG1[3:2] = 00 - devices = 1
|
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* BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3
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* BOOT_CFG2[4:3] = 00 - Boot Search Count = 2
|
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* BOOT_CFG2[2:1] = 01 - Pages In Block = 64
|
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* BOOT_CFG2[0] = 0 - Reset time 12ms
|
|
*/
|
|
static const struct boot_mode board_boot_modes[] = {
|
|
/* NAND: 64pages per block, 3 row addr cycles, 2 copies of FCB/DBBT */
|
|
{"nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00)},
|
|
{"mmc0", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
|
|
{NULL, 0},
|
|
};
|
|
#endif
|
|
|
|
int board_late_init(void)
|
|
{
|
|
#ifdef CONFIG_CMD_BMODE
|
|
add_board_boot_modes(board_boot_modes);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
#include <spl.h>
|
|
#include <libfdt.h>
|
|
|
|
static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
|
|
.dram_sdclk_0 = 0x00000030,
|
|
.dram_sdclk_1 = 0x00000030,
|
|
.dram_cas = 0x00000030,
|
|
.dram_ras = 0x00000030,
|
|
.dram_reset = 0x00000030,
|
|
.dram_sdcke0 = 0x00000030,
|
|
.dram_sdcke1 = 0x00000030,
|
|
.dram_sdba2 = 0x00000000,
|
|
.dram_sdodt0 = 0x00000030,
|
|
.dram_sdodt1 = 0x00000030,
|
|
.dram_sdqs0 = 0x00000030,
|
|
.dram_sdqs1 = 0x00000030,
|
|
.dram_sdqs2 = 0x00000030,
|
|
.dram_sdqs3 = 0x00000030,
|
|
.dram_sdqs4 = 0x00000030,
|
|
.dram_sdqs5 = 0x00000030,
|
|
.dram_sdqs6 = 0x00000030,
|
|
.dram_sdqs7 = 0x00000030,
|
|
.dram_dqm0 = 0x00000030,
|
|
.dram_dqm1 = 0x00000030,
|
|
.dram_dqm2 = 0x00000030,
|
|
.dram_dqm3 = 0x00000030,
|
|
.dram_dqm4 = 0x00000030,
|
|
.dram_dqm5 = 0x00000030,
|
|
.dram_dqm6 = 0x00000030,
|
|
.dram_dqm7 = 0x00000030,
|
|
};
|
|
|
|
static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
|
|
.grp_ddr_type = 0x000C0000,
|
|
.grp_ddrmode_ctl = 0x00020000,
|
|
.grp_ddrpke = 0x00000000,
|
|
.grp_addds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_ctlds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_ddrmode = 0x00020000,
|
|
.grp_b0ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b1ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b2ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b3ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b4ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b5ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b6ds = IMX6Q_DRIVE_STRENGTH,
|
|
.grp_b7ds = IMX6Q_DRIVE_STRENGTH,
|
|
};
|
|
|
|
static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
|
|
.p0_mpwldectrl0 = 0x00140014,
|
|
.p0_mpwldectrl1 = 0x000A0015,
|
|
.p1_mpwldectrl0 = 0x000A001E,
|
|
.p1_mpwldectrl1 = 0x000A0015,
|
|
.p0_mpdgctrl0 = 0x43080314,
|
|
.p0_mpdgctrl1 = 0x02680300,
|
|
.p1_mpdgctrl0 = 0x430C0318,
|
|
.p1_mpdgctrl1 = 0x03000254,
|
|
.p0_mprddlctl = 0x3A323234,
|
|
.p1_mprddlctl = 0x3E3C3242,
|
|
.p0_mpwrdlctl = 0x2A2E3632,
|
|
.p1_mpwrdlctl = 0x3C323E34,
|
|
};
|
|
|
|
static struct mx6_ddr3_cfg mem_ddr = {
|
|
.mem_speed = 1600,
|
|
.density = 2,
|
|
.width = 16,
|
|
.banks = 8,
|
|
.rowaddr = 14,
|
|
.coladdr = 10,
|
|
.pagesz = 2,
|
|
.trcd = 1375,
|
|
.trcmin = 4875,
|
|
.trasmin = 3500,
|
|
.SRT = 1,
|
|
};
|
|
|
|
static void ccgr_init(void)
|
|
{
|
|
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
|
|
|
|
writel(0x00C03F3F, &ccm->CCGR0);
|
|
writel(0x0030FC03, &ccm->CCGR1);
|
|
writel(0x0FFFC000, &ccm->CCGR2);
|
|
writel(0x3FF00000, &ccm->CCGR3);
|
|
writel(0x00FFF300, &ccm->CCGR4);
|
|
writel(0x0F0000C3, &ccm->CCGR5);
|
|
writel(0x000003FF, &ccm->CCGR6);
|
|
}
|
|
|
|
static void gpr_init(void)
|
|
{
|
|
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
|
|
|
|
/* enable AXI cache for VDOA/VPU/IPU */
|
|
writel(0xF00000CF, &iomux->gpr[4]);
|
|
/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
|
|
writel(0x007F007F, &iomux->gpr[6]);
|
|
writel(0x007F007F, &iomux->gpr[7]);
|
|
}
|
|
|
|
|
|
static void spl_dram_init(void)
|
|
{
|
|
struct mx6_ddr_sysinfo sysinfo = {
|
|
/* width of data bus:0=16,1=32,2=64 */
|
|
.dsize = 2,
|
|
/* config for full 4GB range so that get_mem_size() works */
|
|
.cs_density = 32, /* 32Gb per CS */
|
|
/* single chip select */
|
|
.ncs = 1,
|
|
.cs1_mirror = 0,
|
|
.rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
|
|
.rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
|
|
.walat = 1, /* Write additional latency */
|
|
.ralat = 5, /* Read additional latency */
|
|
.mif3_mode = 3, /* Command prediction working mode */
|
|
.bi_on = 1, /* Bank interleaving enabled */
|
|
.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
|
|
.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
|
|
.ddr_type = DDR_TYPE_DDR3,
|
|
.refsel = 1, /* Refresh cycles at 32KHz */
|
|
.refr = 7, /* 8 refresh commands per refresh cycle */
|
|
};
|
|
|
|
mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
|
|
mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
|
|
}
|
|
|
|
void board_boot_order(u32 *spl_boot_list)
|
|
{
|
|
spl_boot_list[0] = spl_boot_device();
|
|
printf("Boot device %x\n", spl_boot_list[0]);
|
|
switch (spl_boot_list[0]) {
|
|
case BOOT_DEVICE_SPI:
|
|
spl_boot_list[1] = BOOT_DEVICE_UART;
|
|
break;
|
|
case BOOT_DEVICE_MMC1:
|
|
spl_boot_list[1] = BOOT_DEVICE_SPI;
|
|
spl_boot_list[2] = BOOT_DEVICE_UART;
|
|
break;
|
|
default:
|
|
printf("Boot device %x\n", spl_boot_list[0]);
|
|
}
|
|
}
|
|
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
#ifdef CONFIG_CMD_NAND
|
|
/* Enable NAND */
|
|
setup_gpmi_nand();
|
|
#endif
|
|
|
|
/* setup clock gating */
|
|
ccgr_init();
|
|
|
|
/* setup AIPS and disable watchdog */
|
|
arch_cpu_init();
|
|
|
|
/* setup AXI */
|
|
gpr_init();
|
|
|
|
board_early_init_f();
|
|
|
|
/* setup GP timer */
|
|
timer_init();
|
|
|
|
setup_spi();
|
|
|
|
/* UART clocks enabled and gd valid - init serial console */
|
|
preloader_console_init();
|
|
|
|
/* DDR initialization */
|
|
spl_dram_init();
|
|
|
|
/* Clear the BSS. */
|
|
memset(__bss_start, 0, __bss_end - __bss_start);
|
|
|
|
/* load/boot image from boot device */
|
|
board_init_r(NULL, 0);
|
|
}
|
|
#endif
|
|
|