mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-26 04:49:42 +09:00
db41d65a97
At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Migrate a few more files] Signed-off-by: Tom Rini <trini@konsulko.com>
545 lines
17 KiB
C
545 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Board functions for BuR BRPPT2 board
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*
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* Copyright (C) 2019
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* B&R Industrial Automation GmbH - http://www.br-automation.com/
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*
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*/
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#include <common.h>
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#include <cpu_func.h>
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#include <hang.h>
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#include <spl.h>
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#include <dm.h>
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#include <miiphy.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/mx6-pins.h>
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#ifdef CONFIG_SPL_BUILD
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# include <asm/arch/mx6-ddr.h>
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#endif
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#include <asm/arch/clock.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#define USBHUB_RSTN IMX_GPIO_NR(1, 16)
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#define BKLT_EN IMX_GPIO_NR(1, 15)
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#define CAPT_INT IMX_GPIO_NR(4, 9)
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#define CAPT_RESETN IMX_GPIO_NR(4, 11)
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#define SW_INTN IMX_GPIO_NR(3, 26)
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#define VCCDISP_EN IMX_GPIO_NR(5, 18)
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#define EMMC_RSTN IMX_GPIO_NR(6, 8)
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#define PMIC_IRQN IMX_GPIO_NR(5, 22)
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#define TASTER IMX_GPIO_NR(5, 23)
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#define ETH0_LINK IMX_GPIO_NR(1, 27)
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#define ETH1_LINK IMX_GPIO_NR(1, 28)
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#define UART_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define I2C_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define ECSPI_PAD_CTRL (PAD_CTL_PUS_100K_DOWN | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_48ohm | \
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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_48ohm | \
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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_60ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define ENET_PAD_CTRL1 (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_34ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define ENET_PAD_CTRL_PU (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_80ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
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PAD_CTL_SPEED_MED | PAD_CTL_DSE_60ohm | \
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PAD_CTL_SRE_FAST)
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#define GPIO_PAD_CTRL_PU (PAD_CTL_PUS_100K_UP | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define GPIO_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define LCDCMOS_PAD_CTRL (PAD_CTL_PUS_100K_DOWN | \
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PAD_CTL_SPEED_LOW | PAD_CTL_DSE_120ohm |\
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PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
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#define MUXDESC(pad, ctrl) IOMUX_PADS(pad | MUX_PAD_CTRL(ctrl))
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#if !defined(CONFIG_SPL_BUILD)
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static iomux_v3_cfg_t const eth_pads[] = {
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/*
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* Gigabit Ethernet
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*/
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/* CLKs */
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MUXDESC(PAD_GPIO_16__ENET_REF_CLK, ENET_PAD_CTRL_CLK),
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MUXDESC(PAD_ENET_REF_CLK__ENET_TX_CLK, ENET_PAD_CTRL_CLK),
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/* MDIO */
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MUXDESC(PAD_ENET_MDIO__ENET_MDIO, ENET_PAD_CTRL_PU),
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MUXDESC(PAD_ENET_MDC__ENET_MDC, ENET_PAD_CTRL_PU),
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/* RGMII */
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MUXDESC(PAD_RGMII_TXC__RGMII_TXC, ENET_PAD_CTRL1),
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MUXDESC(PAD_RGMII_TD0__RGMII_TD0, ENET_PAD_CTRL),
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MUXDESC(PAD_RGMII_TD1__RGMII_TD1, ENET_PAD_CTRL),
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MUXDESC(PAD_RGMII_TD2__RGMII_TD2, ENET_PAD_CTRL),
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MUXDESC(PAD_RGMII_TD3__RGMII_TD3, ENET_PAD_CTRL),
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MUXDESC(PAD_RGMII_TX_CTL__RGMII_TX_CTL, ENET_PAD_CTRL),
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MUXDESC(PAD_RGMII_RXC__RGMII_RXC, ENET_PAD_CTRL_PU),
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MUXDESC(PAD_RGMII_RD0__RGMII_RD0, ENET_PAD_CTRL_PU),
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MUXDESC(PAD_RGMII_RD1__RGMII_RD1, ENET_PAD_CTRL_PU),
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MUXDESC(PAD_RGMII_RD2__RGMII_RD2, ENET_PAD_CTRL_PU),
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MUXDESC(PAD_RGMII_RD3__RGMII_RD3, ENET_PAD_CTRL_PU),
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MUXDESC(PAD_RGMII_RX_CTL__RGMII_RX_CTL, ENET_PAD_CTRL_PU),
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/* ETH0_LINK */
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MUXDESC(PAD_ENET_RXD0__GPIO1_IO27, GPIO_PAD_CTRL_PD),
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/* ETH1_LINK */
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MUXDESC(PAD_ENET_TX_EN__GPIO1_IO28, GPIO_PAD_CTRL_PD),
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};
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static iomux_v3_cfg_t const board_pads[] = {
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/*
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* I2C #3, #4
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*/
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MUXDESC(PAD_GPIO_3__I2C3_SCL, I2C_PAD_CTRL),
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MUXDESC(PAD_GPIO_6__I2C3_SDA, I2C_PAD_CTRL),
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/*
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* UART#4 PADS
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* UART_Tasten
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*/
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MUXDESC(PAD_CSI0_DAT12__UART4_TX_DATA, UART_PAD_CTRL),
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MUXDESC(PAD_CSI0_DAT13__UART4_RX_DATA, UART_PAD_CTRL),
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MUXDESC(PAD_CSI0_DAT17__UART4_CTS_B, UART_PAD_CTRL),
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MUXDESC(PAD_CSI0_DAT16__UART4_RTS_B, UART_PAD_CTRL),
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/*
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* ESCPI#1
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* M25P32 NOR-Flash
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*/
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MUXDESC(PAD_EIM_D16__ECSPI1_SCLK, ECSPI_PAD_CTRL),
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MUXDESC(PAD_EIM_D17__ECSPI1_MISO, ECSPI_PAD_CTRL),
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MUXDESC(PAD_EIM_D18__ECSPI1_MOSI, ECSPI_PAD_CTRL),
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MUXDESC(PAD_EIM_D19__GPIO3_IO19, ECSPI_PAD_CTRL),
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/*
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* ESCPI#2
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* resTouch SPI ADC
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*/
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MUXDESC(PAD_CSI0_DAT8__ECSPI2_SCLK, ECSPI_PAD_CTRL),
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MUXDESC(PAD_EIM_OE__ECSPI2_MISO, ECSPI_PAD_CTRL),
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MUXDESC(PAD_CSI0_DAT9__ECSPI2_MOSI, ECSPI_PAD_CTRL),
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MUXDESC(PAD_EIM_D24__GPIO3_IO24, ECSPI_PAD_CTRL),
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/*
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* USDHC#4
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*/
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MUXDESC(PAD_SD4_CLK__SD4_CLK, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_CMD__SD4_CMD, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT0__SD4_DATA0, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT1__SD4_DATA1, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT2__SD4_DATA2, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT3__SD4_DATA3, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT4__SD4_DATA4, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT5__SD4_DATA5, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT6__SD4_DATA6, USDHC_PAD_CTRL),
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MUXDESC(PAD_SD4_DAT7__SD4_DATA7, USDHC_PAD_CTRL),
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/*
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* USB OTG power & ID
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*/
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/* USB_OTG_5V_EN */
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MUXDESC(PAD_EIM_D22__GPIO3_IO22, GPIO_PAD_CTRL_PD),
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MUXDESC(PAD_EIM_D31__GPIO3_IO31, GPIO_PAD_CTRL_PD),
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/* USB_OTG_JUMPER */
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MUXDESC(PAD_ENET_RX_ER__USB_OTG_ID, GPIO_PAD_CTRL_PD),
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/*
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* PWM-Pins
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*/
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/* BKLT_CTL */
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MUXDESC(PAD_SD1_CMD__PWM4_OUT, GPIO_PAD_CTRL_PD),
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/* SPEAKER */
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MUXDESC(PAD_SD1_DAT1__PWM3_OUT, GPIO_PAD_CTRL_PD),
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/*
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* GPIOs
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*/
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/* USB_HUB_nRESET */
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MUXDESC(PAD_SD1_DAT0__GPIO1_IO16, GPIO_PAD_CTRL_PD),
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/* BKLT_EN */
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MUXDESC(PAD_SD2_DAT0__GPIO1_IO15, GPIO_PAD_CTRL_PD),
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/* capTouch_INT */
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MUXDESC(PAD_KEY_ROW1__GPIO4_IO09, GPIO_PAD_CTRL_PD),
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/* capTouch_nRESET */
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MUXDESC(PAD_KEY_ROW2__GPIO4_IO11, GPIO_PAD_CTRL_PD),
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/* SW_nINT */
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MUXDESC(PAD_EIM_D26__GPIO3_IO26, GPIO_PAD_CTRL_PU),
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/* VCC_DISP_EN */
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MUXDESC(PAD_CSI0_PIXCLK__GPIO5_IO18, GPIO_PAD_CTRL_PD),
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/* eMMC_nRESET */
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MUXDESC(PAD_NANDF_ALE__GPIO6_IO08, GPIO_PAD_CTRL_PD),
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/* HWID*/
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MUXDESC(PAD_NANDF_D0__GPIO2_IO00, GPIO_PAD_CTRL_PU),
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MUXDESC(PAD_NANDF_D1__GPIO2_IO01, GPIO_PAD_CTRL_PU),
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MUXDESC(PAD_NANDF_D2__GPIO2_IO02, GPIO_PAD_CTRL_PU),
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MUXDESC(PAD_NANDF_D3__GPIO2_IO03, GPIO_PAD_CTRL_PU),
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/* PMIC_nIRQ */
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MUXDESC(PAD_CSI0_DAT4__GPIO5_IO22, GPIO_PAD_CTRL_PU),
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/* nTASTER */
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MUXDESC(PAD_CSI0_DAT5__GPIO5_IO23, GPIO_PAD_CTRL_PU),
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/* RGB LCD Display */
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MUXDESC(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DI0_PIN2__IPU1_DI0_PIN02, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DI0_PIN3__IPU1_DI0_PIN03, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DI0_PIN4__IPU1_DI0_PIN04, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DI0_PIN15__IPU1_DI0_PIN15, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT0__IPU1_DISP0_DATA00, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT1__IPU1_DISP0_DATA01, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT2__IPU1_DISP0_DATA02, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT3__IPU1_DISP0_DATA03, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT4__IPU1_DISP0_DATA04, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT5__IPU1_DISP0_DATA05, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT6__IPU1_DISP0_DATA06, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT7__IPU1_DISP0_DATA07, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT8__IPU1_DISP0_DATA08, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT9__IPU1_DISP0_DATA09, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT10__IPU1_DISP0_DATA10, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT11__IPU1_DISP0_DATA11, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT12__IPU1_DISP0_DATA12, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT13__IPU1_DISP0_DATA13, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT14__IPU1_DISP0_DATA14, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT15__IPU1_DISP0_DATA15, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT16__IPU1_DISP0_DATA16, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT17__IPU1_DISP0_DATA17, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT18__IPU1_DISP0_DATA18, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT19__IPU1_DISP0_DATA19, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT20__IPU1_DISP0_DATA20, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT21__IPU1_DISP0_DATA21, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT22__IPU1_DISP0_DATA22, LCDCMOS_PAD_CTRL),
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MUXDESC(PAD_DISP0_DAT23__IPU1_DISP0_DATA23, LCDCMOS_PAD_CTRL),
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};
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int board_ehci_hcd_init(int port)
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{
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gpio_direction_output(USBHUB_RSTN, 1);
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return 0;
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}
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int board_late_init(void)
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{
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ulong b_mode = 4;
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if (gpio_get_value(TASTER) == 0)
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b_mode = 12;
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env_set_ulong("b_mode", b_mode);
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return 0;
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}
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int board_init(void)
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{
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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if (gpio_request(BKLT_EN, "BKLT_EN"))
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printf("Warning: BKLT_EN setup failed\n");
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gpio_direction_output(BKLT_EN, 0);
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if (gpio_request(USBHUB_RSTN, "USBHUB_nRST"))
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printf("Warning: USBHUB_nRST setup failed\n");
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gpio_direction_output(USBHUB_RSTN, 0);
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if (gpio_request(TASTER, "TASTER"))
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printf("Warning: TASTER setup failed\n");
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gpio_direction_input(TASTER);
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return 0;
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}
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int board_early_init_f(void)
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{
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struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
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SETUP_IOMUX_PADS(board_pads);
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SETUP_IOMUX_PADS(eth_pads);
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/* set GPIO_16 as ENET_REF_CLK_OUT running at 25 MHz */
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setbits_le32(&iomux->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
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enable_fec_anatop_clock(0, ENET_25MHZ);
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enable_enet_clk(1);
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return 0;
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}
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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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#else
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/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
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static struct mx6sdl_iomux_ddr_regs ddr_iomux_s = {
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/* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
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.dram_sdclk_0 = 0x00020030,
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.dram_sdclk_1 = 0x00020030,
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.dram_cas = 0x00020030,
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.dram_ras = 0x00020030,
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.dram_reset = 0x00020030,
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/* SDCKE[0:1]: 100k pull-up */
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.dram_sdcke0 = 0x00003000,
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.dram_sdcke1 = 0x00003000,
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/* SDBA2: pull-up disabled */
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.dram_sdba2 = 0x00000000,
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/* SDODT[0:1]: 100k pull-up, 40 ohm */
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.dram_sdodt0 = 0x00003030,
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.dram_sdodt1 = 0x00003030,
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/* SDQS[0:7]: Differential input, 40 ohm */
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.dram_sdqs0 = 0x00000030,
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.dram_sdqs1 = 0x00000030,
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.dram_sdqs2 = 0x00000030,
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.dram_sdqs3 = 0x00000030,
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.dram_sdqs4 = 0x00000030,
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.dram_sdqs5 = 0x00000030,
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.dram_sdqs6 = 0x00000030,
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.dram_sdqs7 = 0x00000030,
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/* DQM[0:7]: Differential input, 40 ohm */
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.dram_dqm0 = 0x00020030,
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.dram_dqm1 = 0x00020030,
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.dram_dqm2 = 0x00020030,
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.dram_dqm3 = 0x00020030,
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.dram_dqm4 = 0x00020030,
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.dram_dqm5 = 0x00020030,
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.dram_dqm6 = 0x00020030,
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.dram_dqm7 = 0x00020030,
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};
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/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
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static struct mx6sdl_iomux_grp_regs grp_iomux_s = {
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/* DDR3 */
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.grp_ddr_type = 0x000c0000,
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.grp_ddrmode_ctl = 0x00020000,
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/* disable DDR pullups */
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.grp_ddrpke = 0x00000000,
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/* ADDR[00:16], SDBA[0:1]: 40 ohm */
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.grp_addds = 0x00000030,
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/* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
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.grp_ctlds = 0x00000030,
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/* DATA[00:63]: Differential input, 40 ohm */
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.grp_ddrmode = 0x00020000,
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.grp_b0ds = 0x00000030,
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.grp_b1ds = 0x00000030,
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.grp_b2ds = 0x00000030,
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.grp_b3ds = 0x00000030,
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.grp_b4ds = 0x00000030,
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.grp_b5ds = 0x00000030,
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.grp_b6ds = 0x00000030,
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.grp_b7ds = 0x00000030,
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};
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/*
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* DDR3 desriptions - these are the memory chips we support
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*/
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/* NT5CC128M16FP-DII */
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static struct mx6_ddr3_cfg cfg_nt5cc128m16fp_dii = {
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.mem_speed = 1600,
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.density = 2,
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.width = 16,
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.banks = 8,
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.rowaddr = 14,
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.coladdr = 10,
|
|
.pagesz = 2,
|
|
.trcd = 1375,
|
|
.trcmin = 4875,
|
|
.trasmin = 3500,
|
|
};
|
|
|
|
/* measured on board TSERIES_ARM/1 V_LVDS_DL64 */
|
|
static struct mx6_mmdc_calibration cal_nt5cc128m16fp_dii_128x64_s = {
|
|
/* write leveling calibration determine, MR1-value = 0x0002 */
|
|
.p0_mpwldectrl0 = 0x003F003E,
|
|
.p0_mpwldectrl1 = 0x003A003A,
|
|
.p1_mpwldectrl0 = 0x001B001C,
|
|
.p1_mpwldectrl1 = 0x00190031,
|
|
/* Read DQS Gating calibration */
|
|
.p0_mpdgctrl0 = 0x02640264,
|
|
.p0_mpdgctrl1 = 0x02440250,
|
|
.p1_mpdgctrl0 = 0x02400250,
|
|
.p1_mpdgctrl1 = 0x0238023C,
|
|
/* Read Calibration: DQS delay relative to DQ read access */
|
|
.p0_mprddlctl = 0x40464644,
|
|
.p1_mprddlctl = 0x464A4842,
|
|
/* Write Calibration: DQ/DM delay relative to DQS write access */
|
|
.p0_mpwrdlctl = 0x38343034,
|
|
.p1_mpwrdlctl = 0x36323830,
|
|
};
|
|
|
|
/* measured on board TSERIES_ARM/1 V_LVDS_S32 */
|
|
static struct mx6_mmdc_calibration cal_nt5cc128m16fp_dii_128x32_s = {
|
|
/* write leveling calibration determine, MR1-value = 0x0002 */
|
|
.p0_mpwldectrl0 = 0x00410043,
|
|
.p0_mpwldectrl1 = 0x003A003C,
|
|
/* Read DQS Gating calibration */
|
|
.p0_mpdgctrl0 = 0x023C0244,
|
|
.p0_mpdgctrl1 = 0x02240230,
|
|
/* Read Calibration: DQS delay relative to DQ read access */
|
|
.p0_mprddlctl = 0x484C4A48,
|
|
/* Write Calibration: DQ/DM delay relative to DQS write access */
|
|
.p0_mpwrdlctl = 0x3C363434,
|
|
};
|
|
|
|
static void spl_dram_init(void)
|
|
{
|
|
struct gpio_regs *gpio = (struct gpio_regs *)GPIO2_BASE_ADDR;
|
|
u32 val, dram_strap = 0;
|
|
struct mx6_ddr3_cfg *mem = NULL;
|
|
struct mx6_mmdc_calibration *calib = NULL;
|
|
struct mx6_ddr_sysinfo sysinfo = {
|
|
/* width of data bus:0=16,1=32,2=64 */
|
|
.dsize = -1, /* CPU type specific (overwritten) */
|
|
/* config for full 4GB range so that get_mem_size() works */
|
|
.cs_density = 32, /* 32Gb per CS */
|
|
.ncs = 1, /* single chip select */
|
|
.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 = 0, /* DDR3 */
|
|
};
|
|
|
|
/*
|
|
* MMDC Calibration requires the following data:
|
|
* mx6_mmdc_calibration - board-specific calibration (routing delays)
|
|
* these calibration values depend on board routing, SoC, and DDR
|
|
* mx6_ddr_sysinfo - board-specific memory architecture (width/cs/etc)
|
|
* mx6_ddr_cfg - chip specific timing/layout details
|
|
*/
|
|
|
|
/* setup HWID3-2 to input */
|
|
val = readl(&gpio->gpio_dir);
|
|
val &= ~(0x1 << 0 | 0x1 << 1);
|
|
writel(val, &gpio->gpio_dir);
|
|
|
|
/* read DRAM strapping from HWID3/2 (bit 1 and bit 0) */
|
|
dram_strap = readl(&gpio->gpio_psr) & 0x3;
|
|
|
|
switch (dram_strap) {
|
|
/* 1 GiB, 64 bit, 4 NT5CC128M16FP chips */
|
|
case 0:
|
|
puts("DRAM strap 00\n");
|
|
mem = &cfg_nt5cc128m16fp_dii;
|
|
sysinfo.dsize = 2;
|
|
calib = &cal_nt5cc128m16fp_dii_128x64_s;
|
|
break;
|
|
/* 512 MiB, 32 bit, 2 NT5CC128M16FP chips */
|
|
case 1:
|
|
puts("DRAM strap 01\n");
|
|
mem = &cfg_nt5cc128m16fp_dii;
|
|
sysinfo.dsize = 1;
|
|
calib = &cal_nt5cc128m16fp_dii_128x32_s;
|
|
break;
|
|
default:
|
|
printf("DRAM strap 0x%x (invalid)\n", dram_strap);
|
|
break;
|
|
}
|
|
|
|
if (!mem) {
|
|
puts("Error: Invalid Memory Configuration\n");
|
|
hang();
|
|
}
|
|
if (!calib) {
|
|
puts("Error: Invalid Board Calibration Configuration\n");
|
|
hang();
|
|
}
|
|
|
|
mx6sdl_dram_iocfg(16 << sysinfo.dsize,
|
|
&ddr_iomux_s,
|
|
&grp_iomux_s);
|
|
|
|
mx6_dram_cfg(&sysinfo, calib, mem);
|
|
}
|
|
|
|
static iomux_v3_cfg_t const board_pads_spl[] = {
|
|
/* UART#1 PADS */
|
|
MUXDESC(PAD_CSI0_DAT10__UART1_TX_DATA, UART_PAD_CTRL),
|
|
MUXDESC(PAD_CSI0_DAT11__UART1_RX_DATA, UART_PAD_CTRL),
|
|
/* ESCPI#1 PADS */
|
|
MUXDESC(PAD_EIM_D16__ECSPI1_SCLK, ECSPI_PAD_CTRL),
|
|
MUXDESC(PAD_EIM_D17__ECSPI1_MISO, ECSPI_PAD_CTRL),
|
|
MUXDESC(PAD_EIM_D18__ECSPI1_MOSI, ECSPI_PAD_CTRL),
|
|
MUXDESC(PAD_EIM_D19__GPIO3_IO19, ECSPI_PAD_CTRL),
|
|
/* USDHC#4 PADS */
|
|
MUXDESC(PAD_SD4_CLK__SD4_CLK, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_CMD__SD4_CMD, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT0__SD4_DATA0, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT1__SD4_DATA1, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT2__SD4_DATA2, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT3__SD4_DATA3, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT4__SD4_DATA4, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT5__SD4_DATA5, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT6__SD4_DATA6, USDHC_PAD_CTRL),
|
|
MUXDESC(PAD_SD4_DAT7__SD4_DATA7, USDHC_PAD_CTRL),
|
|
/* HWID*/
|
|
MUXDESC(PAD_NANDF_D0__GPIO2_IO00, GPIO_PAD_CTRL_PU),
|
|
MUXDESC(PAD_NANDF_D1__GPIO2_IO01, GPIO_PAD_CTRL_PU),
|
|
MUXDESC(PAD_NANDF_D2__GPIO2_IO02, GPIO_PAD_CTRL_PU),
|
|
MUXDESC(PAD_NANDF_D3__GPIO2_IO03, GPIO_PAD_CTRL_PU),
|
|
};
|
|
|
|
void spl_board_init(void)
|
|
{
|
|
preloader_console_init();
|
|
}
|
|
|
|
static void ccgr_init(void)
|
|
{
|
|
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
|
|
|
|
/*
|
|
* We don't use DMA in SPL, but we do need it in U-Boot. U-Boot
|
|
* initializes DMA very early (before all board code), so the only
|
|
* opportunity we have to initialize APBHDMA clocks is in SPL.
|
|
* setbits_le32(&ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
|
|
*/
|
|
|
|
writel(0x00C03F3F, &ccm->CCGR0);
|
|
writel(0x00F0FC03, &ccm->CCGR1);
|
|
writel(0x0FFFF000, &ccm->CCGR2);
|
|
writel(0x3FF00000, &ccm->CCGR3);
|
|
writel(0x00FFF300, &ccm->CCGR4);
|
|
writel(0x0F0030C3, &ccm->CCGR5);
|
|
writel(0x000003F0, &ccm->CCGR6);
|
|
}
|
|
|
|
void board_init_f(ulong dummy)
|
|
{
|
|
ccgr_init();
|
|
arch_cpu_init();
|
|
timer_init();
|
|
gpr_init();
|
|
|
|
SETUP_IOMUX_PADS(board_pads_spl);
|
|
spl_dram_init();
|
|
}
|
|
|
|
void reset_cpu(ulong addr)
|
|
{
|
|
}
|
|
#endif /* CONFIG_SPL_BUILD */
|