mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 03:58:17 +00:00
03de305ec4
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
123 lines
2.7 KiB
C
123 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Board init file for Dragonboard 820C
|
|
*
|
|
* (C) Copyright 2017 Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
|
|
*/
|
|
|
|
#include <button.h>
|
|
#include <cpu_func.h>
|
|
#include <init.h>
|
|
#include <env.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/global_data.h>
|
|
#include <linux/arm-smccc.h>
|
|
#include <linux/psci.h>
|
|
#include <dm.h>
|
|
#include <asm/io.h>
|
|
#include <linux/bitops.h>
|
|
#include <asm/psci.h>
|
|
#include <asm/gpio.h>
|
|
|
|
#define TLMM_BASE_ADDR (0x1010000)
|
|
|
|
/* Strength (sdc1) */
|
|
#define SDC1_HDRV_PULL_CTL_REG (TLMM_BASE_ADDR + 0x0012D000)
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static void sdhci_power_init(void)
|
|
{
|
|
const u32 TLMM_PULL_MASK = 0x3;
|
|
const u32 TLMM_HDRV_MASK = 0x7;
|
|
|
|
struct tlmm_cfg {
|
|
u32 bit; /* bit in the register */
|
|
u8 mask; /* mask clk/dat/cmd control */
|
|
u8 val;
|
|
};
|
|
|
|
/* bit offsets in the sdc tlmm register */
|
|
enum { SDC1_DATA_HDRV = 0,
|
|
SDC1_CMD_HDRV = 3,
|
|
SDC1_CLK_HDRV = 6,
|
|
SDC1_DATA_PULL = 9,
|
|
SDC1_CMD_PULL = 11,
|
|
SDC1_CLK_PULL = 13,
|
|
SDC1_RCLK_PULL = 15,
|
|
};
|
|
|
|
enum { TLMM_PULL_DOWN = 0x1,
|
|
TLMM_PULL_UP = 0x3,
|
|
TLMM_NO_PULL = 0x0,
|
|
};
|
|
|
|
enum { TLMM_CUR_VAL_10MA = 0x04,
|
|
TLMM_CUR_VAL_16MA = 0x07,
|
|
};
|
|
int i;
|
|
|
|
/* drive strength configs for sdhc pins */
|
|
const struct tlmm_cfg hdrv[] = {
|
|
|
|
{ SDC1_CLK_HDRV, TLMM_CUR_VAL_16MA, TLMM_HDRV_MASK, },
|
|
{ SDC1_CMD_HDRV, TLMM_CUR_VAL_10MA, TLMM_HDRV_MASK, },
|
|
{ SDC1_DATA_HDRV, TLMM_CUR_VAL_10MA, TLMM_HDRV_MASK, },
|
|
};
|
|
|
|
/* pull configs for sdhc pins */
|
|
const struct tlmm_cfg pull[] = {
|
|
|
|
{ SDC1_CLK_PULL, TLMM_NO_PULL, TLMM_PULL_MASK, },
|
|
{ SDC1_CMD_PULL, TLMM_PULL_UP, TLMM_PULL_MASK, },
|
|
{ SDC1_DATA_PULL, TLMM_PULL_UP, TLMM_PULL_MASK, },
|
|
};
|
|
|
|
const struct tlmm_cfg rclk[] = {
|
|
|
|
{ SDC1_RCLK_PULL, TLMM_PULL_DOWN, TLMM_PULL_MASK,},
|
|
};
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hdrv); i++)
|
|
clrsetbits_le32(SDC1_HDRV_PULL_CTL_REG,
|
|
hdrv[i].mask << hdrv[i].bit,
|
|
hdrv[i].val << hdrv[i].bit);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pull); i++)
|
|
clrsetbits_le32(SDC1_HDRV_PULL_CTL_REG,
|
|
pull[i].mask << pull[i].bit,
|
|
pull[i].val << pull[i].bit);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(rclk); i++)
|
|
clrsetbits_le32(SDC1_HDRV_PULL_CTL_REG,
|
|
rclk[i].mask << rclk[i].bit,
|
|
rclk[i].val << rclk[i].bit);
|
|
}
|
|
|
|
void qcom_board_init(void)
|
|
{
|
|
sdhci_power_init();
|
|
}
|
|
|
|
/* Check for vol- button - if pressed - stop autoboot */
|
|
int misc_init_r(void)
|
|
{
|
|
struct udevice *btn;
|
|
int ret;
|
|
enum button_state_t state;
|
|
|
|
ret = button_get_by_label("pwrkey", &btn);
|
|
if (ret < 0) {
|
|
printf("Couldn't find power button!\n");
|
|
return ret;
|
|
}
|
|
|
|
state = button_get_state(btn);
|
|
if (state == BUTTON_ON) {
|
|
env_set("bootdelay", "-1");
|
|
printf("Power button pressed - dropping to console.\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|