Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-13 14:53:06 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/phytec/pfla02/pfla02.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

707 lines
18 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Stefano Babic <sbabic@denx.de>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/mach-imx/spi.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <mmc.h>
#include <i2c.h>
#include <fsl_esdhc.h>
#include <nand.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/sys_proto.h>
#include <asm/sections.h>
DECLARE_GLOBAL_DATA_PTR;
#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
#define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14)
#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
#define GREEN_LED IMX_GPIO_NR(2, 31)
#define RED_LED IMX_GPIO_NR(1, 30)
#define IMX6Q_DRIVE_STRENGTH 0x30
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static iomux_v3_cfg_t const uart4_pads[] = {
IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};
static iomux_v3_cfg_t const enet_pads[] = {
IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL |
MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK |
MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL |
MUX_PAD_CTRL(ENET_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT1__GPIO1_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static iomux_v3_cfg_t const ecspi3_pads[] = {
IOMUX_PADS(PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
IOMUX_PADS(PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)),
IOMUX_PADS(PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)),
IOMUX_PADS(PAD_DISP0_DAT3__GPIO4_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static iomux_v3_cfg_t const gpios_pads[] = {
IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT4__GPIO2_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT5__GPIO2_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT6__GPIO2_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT7__GPIO2_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
#ifdef CONFIG_CMD_NAND
/* NAND */
static iomux_v3_cfg_t const nfc_pads[] = {
IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_WP_B__NAND_WP_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS1__NAND_CE1_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS2__NAND_CE2_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_CS3__NAND_CE3_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NAND_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT0__NAND_DQS | MUX_PAD_CTRL(NAND_PAD_CTRL)),
};
#endif
static struct i2c_pads_info i2c_pad_info = {
.scl = {
.i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | I2C_PAD,
.gpio_mode = MX6Q_PAD_EIM_D21__GPIO3_IO21 | I2C_PAD,
.gp = IMX_GPIO_NR(3, 21)
},
.sda = {
.i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | I2C_PAD,
.gpio_mode = MX6Q_PAD_EIM_D28__GPIO3_IO28 | I2C_PAD,
.gp = IMX_GPIO_NR(3, 28)
}
};
static struct fsl_esdhc_cfg usdhc_cfg[] = {
{USDHC3_BASE_ADDR,
.max_bus_width = 4},
{.esdhc_base = USDHC2_BASE_ADDR,
.max_bus_width = 4},
};
#if !defined(CONFIG_SPL_BUILD)
static iomux_v3_cfg_t const usdhc2_pads[] = {
IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
#endif
static iomux_v3_cfg_t const usdhc3_pads[] = {
IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};
int board_mmc_get_env_dev(int devno)
{
return devno - 1;
}
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 USDHC2_BASE_ADDR:
ret = !gpio_get_value(USDHC2_CD_GPIO);
ret = 1;
break;
case USDHC3_BASE_ADDR:
ret = 1;
break;
}
return ret;
}
#ifndef CONFIG_SPL_BUILD
int board_mmc_init(bd_t *bis)
{
int ret;
int i;
for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
switch (i) {
case 0:
SETUP_IOMUX_PADS(usdhc3_pads);
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
break;
case 1:
SETUP_IOMUX_PADS(usdhc2_pads);
gpio_direction_input(USDHC2_CD_GPIO);
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
break;
default:
printf("Warning: you configured more USDHC controllers"
"(%d) then supported by the board (%d)\n",
i + 1, CONFIG_SYS_FSL_USDHC_NUM);
return -EINVAL;
}
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret)
return ret;
}
return 0;
}
#endif
static void setup_iomux_uart(void)
{
SETUP_IOMUX_PADS(uart4_pads);
}
static void setup_iomux_enet(void)
{
SETUP_IOMUX_PADS(enet_pads);
gpio_direction_output(ENET_PHY_RESET_GPIO, 0);
mdelay(10);
gpio_set_value(ENET_PHY_RESET_GPIO, 1);
mdelay(30);
}
static void setup_spi(void)
{
gpio_request(IMX_GPIO_NR(4, 24), "spi_cs0");
gpio_direction_output(IMX_GPIO_NR(4, 24), 1);
SETUP_IOMUX_PADS(ecspi3_pads);
enable_spi_clk(true, 2);
}
static void setup_gpios(void)
{
SETUP_IOMUX_PADS(gpios_pads);
}
#ifdef CONFIG_CMD_NAND
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(nfc_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
/*
* Board revision is coded in 4 GPIOs
*/
u32 get_board_rev(void)
{
u32 rev;
int i;
for (i = 0, rev = 0; i < 4; i++)
rev |= (gpio_get_value(IMX_GPIO_NR(2, 12 + i)) << i);
return 16 - rev;
}
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
if (bus != 2 || (cs != 0))
return -EINVAL;
return IMX_GPIO_NR(4, 24);
}
int board_eth_init(bd_t *bis)
{
setup_iomux_enet();
return cpu_eth_init(bis);
}
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#ifdef CONFIG_SYS_I2C_MXC
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info);
#endif
#ifdef CONFIG_MXC_SPI
setup_spi();
#endif
setup_gpios();
#ifdef CONFIG_CMD_NAND
setup_gpmi_nand();
#endif
return 0;
}
#ifdef CONFIG_CMD_BMODE
/*
* BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4
* see Table 8-11 and Table 5-9
* BOOT_CFG1[7] = 1 (boot from NAND)
* BOOT_CFG1[5] = 0 - raw NAND
* BOOT_CFG1[4] = 0 - default pad settings
* BOOT_CFG1[3:2] = 00 - devices = 1
* BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3
* BOOT_CFG2[4:3] = 00 - Boot Search Count = 2
* BOOT_CFG2[2:1] = 01 - Pages In Block = 64
* 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)
{
char buf[10];
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
snprintf(buf, sizeof(buf), "%d", get_board_rev());
env_set("board_rev", buf);
return 0;
}
#ifdef CONFIG_SPL_BUILD
#include <asm/arch/mx6-ddr.h>
#include <spl.h>
#include <linux/libfdt.h>
#define MX6_PHYFLEX_ERR006282 IMX_GPIO_NR(2, 11)
static void phyflex_err006282_workaround(void)
{
/*
* Boards beginning with 1362.2 have the SD4_DAT3 pin connected
* to the CMIC. If this pin isn't toggled within 10s the boards
* reset. The pin is unconnected on older boards, so we do not
* need a check for older boards before applying this fixup.
*/
gpio_direction_output(MX6_PHYFLEX_ERR006282, 0);
mdelay(2);
gpio_direction_output(MX6_PHYFLEX_ERR006282, 1);
mdelay(2);
gpio_set_value(MX6_PHYFLEX_ERR006282, 0);
gpio_direction_input(MX6_PHYFLEX_ERR006282);
}
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 = 0x00003000,
.dram_sdcke1 = 0x00003000,
.dram_sdba2 = 0x00000030,
.dram_sdodt0 = 0x00000030,
.dram_sdodt1 = 0x00000030,
.dram_sdqs0 = 0x00000028,
.dram_sdqs1 = 0x00000028,
.dram_sdqs2 = 0x00000028,
.dram_sdqs3 = 0x00000028,
.dram_sdqs4 = 0x00000028,
.dram_sdqs5 = 0x00000028,
.dram_sdqs6 = 0x00000028,
.dram_sdqs7 = 0x00000028,
.dram_dqm0 = 0x00000028,
.dram_dqm1 = 0x00000028,
.dram_dqm2 = 0x00000028,
.dram_dqm3 = 0x00000028,
.dram_dqm4 = 0x00000028,
.dram_dqm5 = 0x00000028,
.dram_dqm6 = 0x00000028,
.dram_dqm7 = 0x00000028,
};
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 = 0x00000028,
.grp_b1ds = 0x00000028,
.grp_b2ds = 0x00000028,
.grp_b3ds = 0x00000028,
.grp_b4ds = 0x00000028,
.grp_b5ds = 0x00000028,
.grp_b6ds = 0x00000028,
.grp_b7ds = 0x00000028,
};
static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
.p0_mpwldectrl0 = 0x00110011,
.p0_mpwldectrl1 = 0x00240024,
.p1_mpwldectrl0 = 0x00260038,
.p1_mpwldectrl1 = 0x002C0038,
.p0_mpdgctrl0 = 0x03400350,
.p0_mpdgctrl1 = 0x03440340,
.p1_mpdgctrl0 = 0x034C0354,
.p1_mpdgctrl1 = 0x035C033C,
.p0_mprddlctl = 0x322A2A2A,
.p1_mprddlctl = 0x302C2834,
.p0_mpwrdlctl = 0x34303834,
.p1_mpwrdlctl = 0x422A3E36,
};
/* Index in RAM Chip array */
enum {
RAM_MT64K,
RAM_MT128K,
RAM_MT256K
};
static struct mx6_ddr3_cfg mt41k_xx[] = {
/* MT41K64M16JT-125 (1Gb density) */
{
.mem_speed = 1600,
.density = 1,
.width = 16,
.banks = 8,
.rowaddr = 13,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
.SRT = 1,
},
/* MT41K256M16JT-125 (2Gb density) */
{
.mem_speed = 1600,
.density = 2,
.width = 16,
.banks = 8,
.rowaddr = 14,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
.SRT = 1,
},
/* MT41K256M16JT-125 (4Gb density) */
{
.mem_speed = 1600,
.density = 4,
.width = 16,
.banks = 8,
.rowaddr = 15,
.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 spl_dram_init(struct mx6_ddr_sysinfo *sysinfo,
struct mx6_ddr3_cfg *mem_ddr)
{
mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(sysinfo, &mx6_mmcd_calib, mem_ddr);
}
int board_mmc_init(bd_t *bis)
{
if (spl_boot_device() == BOOT_DEVICE_SPI)
printf("MMC SEtup, Boot SPI");
SETUP_IOMUX_PADS(usdhc3_pads);
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[0].max_bus_width = 4;
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
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]);
}
}
/*
* This is used because get_ram_size() does not
* take care of cache, resulting a wrong size
* pfla02 has just 1, 2 or 4 GB option
* Function checks for mirrors in the first CS
*/
#define RAM_TEST_PATTERN 0xaa5555aa
#define MIN_BANK_SIZE (512 * 1024 * 1024)
static unsigned int pfla02_detect_chiptype(void)
{
u32 *p, *p1;
unsigned int offset = MIN_BANK_SIZE;
int i;
for (i = 0; i < 2; i++) {
p = (u32 *)PHYS_SDRAM;
p1 = (u32 *)(PHYS_SDRAM + (i + 1) * offset);
*p1 = 0;
*p = RAM_TEST_PATTERN;
/*
* This is required to detect mirroring
* else we read back values from cache
*/
flush_dcache_all();
if (*p == *p1)
return i;
}
return RAM_MT256K;
}
void board_init_f(ulong dummy)
{
unsigned int ramchip;
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, /* 512 MB */
/* single chip select */
#if IS_ENABLED(CONFIG_SPL_DRAM_1_BANK)
.ncs = 1,
#else
.ncs = 2,
#endif
.cs1_mirror = 1,
.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 */
};
#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();
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
setup_spi();
setup_gpios();
/* DDR initialization */
spl_dram_init(&sysinfo, &mt41k_xx[RAM_MT256K]);
ramchip = pfla02_detect_chiptype();
debug("Detected chip %d\n", ramchip);
#if !IS_ENABLED(CONFIG_SPL_DRAM_1_BANK)
switch (ramchip) {
case RAM_MT64K:
sysinfo.cs_density = 6;
break;
case RAM_MT128K:
sysinfo.cs_density = 10;
break;
case RAM_MT256K:
sysinfo.cs_density = 18;
break;
}
#endif
spl_dram_init(&sysinfo, &mt41k_xx[ramchip]);
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
phyflex_err006282_workaround();
/* load/boot image from boot device */
board_init_r(NULL, 0);
}
#endif
Reference in a new issue View git blame Copy permalink