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u-boot-brain/board/tqc/tqma6/tqma6.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

289 lines
6.9 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Freescale Semiconductor, Inc.
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*
* Copyright (C) 2013, 2014 TQ Systems (ported SabreSD to TQMa6x)
* Author: Markus Niebel <markus.niebel@tq-group.com>
*/
#include <asm/arch/clock.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/sys_proto.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/mach-imx/spi.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <linux/libfdt.h>
#include <i2c.h>
#include <mmc.h>
#include <power/pfuze100_pmic.h>
#include <power/pmic.h>
#include <spi_flash.h>
#include "tqma6_bb.h"
DECLARE_GLOBAL_DATA_PTR;
#define USDHC_CLK_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
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 GPIO_OUT_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
#define SPI_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_80ohm | PAD_CTL_HYS | \
PAD_CTL_ODE | PAD_CTL_SRE_FAST)
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
static const uint16_t tqma6_emmc_dsr = 0x0100;
/* eMMC on USDHCI3 always present */
static iomux_v3_cfg_t const tqma6_usdhc3_pads[] = {
NEW_PAD_CTRL(MX6_PAD_SD3_CLK__SD3_CLK, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_CMD__SD3_CMD, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT0__SD3_DATA0, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT1__SD3_DATA1, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT2__SD3_DATA2, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT3__SD3_DATA3, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT4__SD3_DATA4, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT5__SD3_DATA5, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT6__SD3_DATA6, USDHC_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_SD3_DAT7__SD3_DATA7, USDHC_PAD_CTRL),
/* eMMC reset */
NEW_PAD_CTRL(MX6_PAD_SD3_RST__SD3_RESET, GPIO_OUT_PAD_CTRL),
};
/*
* According to board_mmc_init() the following map is done:
* (U-Boot device node) (Physical Port)
* mmc0 eMMC (SD3) on TQMa6
* mmc1 .. n optional slots used on baseboard
*/
struct fsl_esdhc_cfg tqma6_usdhc_cfg = {
.esdhc_base = USDHC3_BASE_ADDR,
.max_bus_width = 8,
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
if (cfg->esdhc_base == USDHC3_BASE_ADDR)
/* eMMC/uSDHC3 is always present */
ret = 1;
else
ret = tqma6_bb_board_mmc_getcd(mmc);
return ret;
}
int board_mmc_getwp(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
if (cfg->esdhc_base == USDHC3_BASE_ADDR)
/* eMMC/uSDHC3 is always present */
ret = 0;
else
ret = tqma6_bb_board_mmc_getwp(mmc);
return ret;
}
int board_mmc_init(bd_t *bis)
{
imx_iomux_v3_setup_multiple_pads(tqma6_usdhc3_pads,
ARRAY_SIZE(tqma6_usdhc3_pads));
tqma6_usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
if (fsl_esdhc_initialize(bis, &tqma6_usdhc_cfg)) {
puts("Warning: failed to initialize eMMC dev\n");
} else {
struct mmc *mmc = find_mmc_device(0);
if (mmc)
mmc_set_dsr(mmc, tqma6_emmc_dsr);
}
tqma6_bb_board_mmc_init(bis);
return 0;
}
static iomux_v3_cfg_t const tqma6_ecspi1_pads[] = {
/* SS1 */
NEW_PAD_CTRL(MX6_PAD_EIM_D19__GPIO3_IO19, SPI_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL),
NEW_PAD_CTRL(MX6_PAD_EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL),
};
#define TQMA6_SF_CS_GPIO IMX_GPIO_NR(3, 19)
static unsigned const tqma6_ecspi1_cs[] = {
TQMA6_SF_CS_GPIO,
};
__weak void tqma6_iomuxc_spi(void)
{
unsigned i;
for (i = 0; i < ARRAY_SIZE(tqma6_ecspi1_cs); ++i)
gpio_direction_output(tqma6_ecspi1_cs[i], 1);
imx_iomux_v3_setup_multiple_pads(tqma6_ecspi1_pads,
ARRAY_SIZE(tqma6_ecspi1_pads));
}
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
return ((bus == CONFIG_SF_DEFAULT_BUS) &&
(cs == CONFIG_SF_DEFAULT_CS)) ? TQMA6_SF_CS_GPIO : -1;
}
static struct i2c_pads_info tqma6_i2c3_pads = {
/* I2C3: on board LM75, M24C64, */
.scl = {
.i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__I2C3_SCL,
I2C_PAD_CTRL),
.gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_5__GPIO1_IO05,
I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(1, 5)
},
.sda = {
.i2c_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__I2C3_SDA,
I2C_PAD_CTRL),
.gpio_mode = NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06,
I2C_PAD_CTRL),
.gp = IMX_GPIO_NR(1, 6)
}
};
static void tqma6_setup_i2c(void)
{
int ret;
/*
* use logical index for bus, e.g. I2C1 -> 0
* warn on error
*/
ret = setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &tqma6_i2c3_pads);
if (ret)
printf("setup I2C3 failed: %d\n", ret);
}
int board_early_init_f(void)
{
return tqma6_bb_board_early_init_f();
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
tqma6_iomuxc_spi();
tqma6_setup_i2c();
tqma6_bb_board_init();
return 0;
}
static const char *tqma6_get_boardname(void)
{
u32 cpurev = get_cpu_rev();
switch ((cpurev & 0xFF000) >> 12) {
case MXC_CPU_MX6SOLO:
return "TQMa6S";
break;
case MXC_CPU_MX6DL:
return "TQMa6DL";
break;
case MXC_CPU_MX6D:
return "TQMa6D";
break;
case MXC_CPU_MX6Q:
return "TQMa6Q";
break;
default:
return "??";
};
}
/* setup board specific PMIC */
int power_init_board(void)
{
struct pmic *p;
u32 reg, rev;
power_pfuze100_init(TQMA6_PFUZE100_I2C_BUS);
p = pmic_get("PFUZE100");
if (p && !pmic_probe(p)) {
pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
pmic_reg_read(p, PFUZE100_REVID, &rev);
printf("PMIC: PFUZE100 ID=0x%02x REV=0x%02x\n", reg, rev);
}
return 0;
}
int board_late_init(void)
{
env_set("board_name", tqma6_get_boardname());
tqma6_bb_board_late_init();
return 0;
}
int checkboard(void)
{
printf("Board: %s on a %s\n", tqma6_get_boardname(),
tqma6_bb_get_boardname());
return 0;
}
/*
* Device Tree Support
*/
#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
#define MODELSTRLEN 32u
int ft_board_setup(void *blob, bd_t *bd)
{
char modelstr[MODELSTRLEN];
snprintf(modelstr, MODELSTRLEN, "TQ %s on %s", tqma6_get_boardname(),
tqma6_bb_get_boardname());
do_fixup_by_path_string(blob, "/", "model", modelstr);
fdt_fixup_memory(blob, (u64)PHYS_SDRAM, (u64)gd->ram_size);
/* bring in eMMC dsr settings */
do_fixup_by_path_u32(blob,
"/soc/aips-bus@02100000/usdhc@02198000",
"dsr", tqma6_emmc_dsr, 2);
tqma6_bb_ft_board_setup(blob, bd);
return 0;
}
#endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */
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