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u-boot-brain/board/logicpd/omap3som/omap3logic.c
Paul Kocialkowski aac5450ea9 omap_hsmmc: Board-specific TWL4030 MMC power initializations 
Boards using the TWL4030 regulator may not all use the LDOs the same way
(e.g. MMC2 power can be controlled by another LDO than VMMC2).
This delegates TWL4030 MMC power initializations to board-specific functions,
that may still call twl4030_power_mmc_init for the default behavior.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
[trini: Fix omap3_evm warning, add twl4030.h]
Signed-off-by: Tom Rini <trini@ti.com>
2014-12-04 21:28:15 -05:00

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/*
* (C) Copyright 2011
* Logic Product Development <www.logicpd.com>
*
* Author :
* Peter Barada <peter.barada@logicpd.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
#include <flash.h>
#include <nand.h>
#include <i2c.h>
#include <twl4030.h>
#include <asm/io.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/mem.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/mach-types.h>
#include "omap3logic.h"
DECLARE_GLOBAL_DATA_PTR;
/*
* two dimensional array of strucures containining board name and Linux
* machine IDs; row it selected based on CPU column is slected based
* on hsusb0_data5 pin having a pulldown resistor
*/
static struct board_id {
char *name;
int machine_id;
} boards[2][2] = {
{
{
.name = "OMAP35xx SOM LV",
.machine_id = MACH_TYPE_OMAP3530_LV_SOM,
},
{
.name = "OMAP35xx Torpedo",
.machine_id = MACH_TYPE_OMAP3_TORPEDO,
},
},
{
{
.name = "DM37xx SOM LV",
.machine_id = MACH_TYPE_DM3730_SOM_LV,
},
{
.name = "DM37xx Torpedo",
.machine_id = MACH_TYPE_DM3730_TORPEDO,
},
},
};
/*
* BOARD_ID_GPIO - GPIO of pin with optional pulldown resistor on SOM LV
*/
#define BOARD_ID_GPIO 189 /* hsusb0_data5 pin */
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
struct board_id *board;
unsigned int val;
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
/*
* To identify between a SOM LV and Torpedo module,
* a pulldown resistor is on hsusb0_data5 for the SOM LV module.
* Drive the pin (and let it soak), then read it back.
* If the pin is still high its a Torpedo. If low its a SOM LV
*/
/* Mux hsusb0_data5 as a GPIO */
MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M4));
if (gpio_request(BOARD_ID_GPIO, "husb0_data5.gpio_189") == 0) {
/*
* Drive BOARD_ID_GPIO - the pulldown resistor on the SOM LV
* will drain the voltage.
*/
gpio_direction_output(BOARD_ID_GPIO, 0);
gpio_set_value(BOARD_ID_GPIO, 1);
/* Let it soak for a bit */
sdelay(0x100);
/*
* Read state of BOARD_ID_GPIO as an input and if its set.
* If so the board is a Torpedo
*/
gpio_direction_input(BOARD_ID_GPIO);
val = gpio_get_value(BOARD_ID_GPIO);
gpio_free(BOARD_ID_GPIO);
board = &boards[!!(get_cpu_family() == CPU_OMAP36XX)][!!val];
printf("Board: %s\n", board->name);
/* Set the machine_id passed to Linux */
gd->bd->bi_arch_number = board->machine_id;
}
/* restore hsusb0_data5 pin as hsusb0_data5 */
MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M0));
return 0;
}
#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0, -1, -1);
}
#endif
#if defined(CONFIG_GENERIC_MMC)
void board_mmc_power_init(void)
{
twl4030_power_mmc_init(0);
}
#endif
#ifdef CONFIG_SMC911X
/* GPMC CS1 settings for Logic SOM LV/Torpedo LAN92xx Ethernet chip */
static const u32 gpmc_lan92xx_config[] = {
NET_LAN92XX_GPMC_CONFIG1,
NET_LAN92XX_GPMC_CONFIG2,
NET_LAN92XX_GPMC_CONFIG3,
NET_LAN92XX_GPMC_CONFIG4,
NET_LAN92XX_GPMC_CONFIG5,
NET_LAN92XX_GPMC_CONFIG6,
};
int board_eth_init(bd_t *bis)
{
enable_gpmc_cs_config(gpmc_lan92xx_config, &gpmc_cfg->cs[1],
CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
return smc911x_initialize(0, CONFIG_SMC911X_BASE);
}
#endif
/*
* IEN - Input Enable
* IDIS - Input Disable
* PTD - Pull type Down
* PTU - Pull type Up
* DIS - Pull type selection is inactive
* EN - Pull type selection is active
* M0 - Mode 0
* The commented string gives the final mux configuration for that pin
*/
/*
* Routine: set_muxconf_regs
* Description: Setting up the configuration Mux registers specific to the
* hardware. Many pins need to be moved from protect to primary
* mode.
*/
void set_muxconf_regs(void)
{
/*GPMC*/
MUX_VAL(CP(GPMC_A1), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A2), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A3), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A4), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A5), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A6), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A7), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A8), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A9), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_A10), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_D0), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D1), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D2), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D3), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D4), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D5), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D6), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D7), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D8), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D9), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D10), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D11), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D12), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D13), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D14), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_D15), (IEN | PTU | EN | M0));
MUX_VAL(CP(GPMC_NCS0), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_NCS1), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_NCS2), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_NCS3), (IDIS | PTD | DIS | M0));
MUX_VAL(CP(GPMC_NCS5), (IDIS | PTU | DIS | M4));
MUX_VAL(CP(GPMC_NCS7), (IDIS | PTD | DIS | M1)); /*GPMC_IO_DIR*/
MUX_VAL(CP(GPMC_NBE0_CLE), (IDIS | PTU | EN | M0));
MUX_VAL(CP(GPMC_WAIT1), (IEN | PTU | EN | M0));
/*Expansion card */
MUX_VAL(CP(MMC1_CLK), (IDIS | PTU | EN | M0));
MUX_VAL(CP(MMC1_CMD), (IEN | PTU | EN | M0));
MUX_VAL(CP(MMC1_DAT0), (IEN | PTU | EN | M0));
MUX_VAL(CP(MMC1_DAT1), (IEN | PTU | EN | M0));
MUX_VAL(CP(MMC1_DAT2), (IEN | PTU | EN | M0));
MUX_VAL(CP(MMC1_DAT3), (IEN | PTU | EN | M0));
/* Serial Console */
MUX_VAL(CP(UART1_TX), (IDIS | PTD | DIS | M0));
MUX_VAL(CP(UART1_RTS), (IDIS | PTD | DIS | M0));
MUX_VAL(CP(UART1_CTS), (IEN | PTU | DIS | M0));
MUX_VAL(CP(UART1_RX), (IEN | PTD | DIS | M0));
/* I2C */
MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0));
MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0));
MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0));
MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0));
MUX_VAL(CP(HDQ_SIO), (IEN | PTU | EN | M0));
/*Control and debug */
MUX_VAL(CP(SYS_NIRQ), (IEN | PTU | EN | M0));
MUX_VAL(CP(SYS_OFF_MODE), (IEN | PTD | DIS | M0));
MUX_VAL(CP(SYS_CLKOUT1), (IEN | PTD | DIS | M0));
MUX_VAL(CP(SYS_CLKOUT2), (IEN | PTU | EN | M0));
MUX_VAL(CP(JTAG_NTRST), (IEN | PTD | DIS | M0));
MUX_VAL(CP(SDRC_CKE0), (IDIS | PTU | EN | M0));
}
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