u-boot-brain/board/amazon/kc1/kc1.c
Paul Kocialkowski ae51b5709e Amazon Kindle Fire (first generation) codename kc1 support
The Amazon Kindle Fire (first generation) codename kc1 is a tablet that was
released by Amazon back in 2011.

It is using an OMAP4430 SoC GP version, which allows running U-Boot and the
U-Boot SPL from the ground up.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
2016-03-15 15:12:48 -04:00

110 lines
2.2 KiB
C

/*
* Amazon Kindle Fire (first generation) codename kc1 config
*
* Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/gpio.h>
#include <asm/emif.h>
#include <twl6030.h>
#include "kc1.h"
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
.board_string = "kc1"
};
void set_muxconf_regs(void)
{
do_set_mux((*ctrl)->control_padconf_core_base, core_padconf_array,
sizeof(core_padconf_array) / sizeof(struct pad_conf_entry));
}
struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
struct lpddr2_device_details *lpddr2_dev_details)
{
if (cs == CS1)
return NULL;
*lpddr2_dev_details = elpida_2G_S4_details;
return lpddr2_dev_details;
}
void emif_get_device_timings(u32 emif_nr,
const struct lpddr2_device_timings **cs0_device_timings,
const struct lpddr2_device_timings **cs1_device_timings)
{
*cs0_device_timings = &elpida_2G_S4_timings;
*cs1_device_timings = NULL;
}
int board_init(void)
{
/* GPMC init */
gpmc_init();
/* MACH number */
gd->bd->bi_arch_number = MACH_TYPE_OMAP_4430SDP;
/* ATAGs location */
gd->bd->bi_boot_params = OMAP44XX_DRAM_ADDR_SPACE_START + 0x100;
return 0;
}
int misc_init_r(void)
{
/* Serial number */
omap_die_id_serial();
return 0;
}
u32 get_board_rev(void)
{
u32 value = 0;
gpio_request(KC1_GPIO_MBID0, "MBID0");
gpio_request(KC1_GPIO_MBID1, "MBID1");
gpio_request(KC1_GPIO_MBID2, "MBID2");
gpio_request(KC1_GPIO_MBID3, "MBID3");
gpio_direction_input(KC1_GPIO_MBID0);
gpio_direction_input(KC1_GPIO_MBID1);
gpio_direction_input(KC1_GPIO_MBID2);
gpio_direction_input(KC1_GPIO_MBID3);
value |= (gpio_get_value(KC1_GPIO_MBID0) << 0);
value |= (gpio_get_value(KC1_GPIO_MBID1) << 1);
value |= (gpio_get_value(KC1_GPIO_MBID2) << 2);
value |= (gpio_get_value(KC1_GPIO_MBID3) << 3);
return value;
}
void get_board_serial(struct tag_serialnr *serialnr)
{
omap_die_id_get_board_serial(serialnr);
}
#ifndef CONFIG_SPL_BUILD
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(1, 0, 0, -1, -1);
}
#endif
void board_mmc_power_init(void)
{
twl6030_power_mmc_init(1);
}