Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-16 00:03:24 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/freescale/mx53evk/mx53evk.c
Fabio Estevam 570aa2fac3 imx: Explicitly pass the I2C bus number in pmic_init() 
The pmic_init() function has the I2C or SPI bus number that is connected to the
PMIC.

Instead of passing I2C_PMIC, explicitly pass the I2C bus number via I2C_x
definition.

The motivation for doing this is to avoid people just doing a copy and paste
of I2C_PMIC into their board file when another I2C bus is actually used to
interface to their PMIC.

This also makes more obvious which is the I2C bus connected to the PMIC, without
having to search in the source code for the meaning of the 'I2C_PMIC' number.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
2013-12-17 16:54:16 +01:00

267 lines
6.7 KiB
C
Raw Blame History

/*
* (C) Copyright 2010 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/iomux-mx53.h>
#include <asm/errno.h>
#include <asm/imx-common/boot_mode.h>
#include <netdev.h>
#include <i2c.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <power/pmic.h>
#include <fsl_pmic.h>
#include <asm/gpio.h>
#include <mc13892.h>
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
/* dram_init must store complete ramsize in gd->ram_size */
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
PHYS_SDRAM_1_SIZE);
return 0;
}
#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
static void setup_iomux_uart(void)
{
static const iomux_v3_cfg_t uart_pads[] = {
NEW_PAD_CTRL(MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, UART_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, UART_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
}
#define I2C_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
PAD_CTL_HYS | PAD_CTL_ODE)
static void setup_i2c(unsigned int port_number)
{
static const iomux_v3_cfg_t i2c1_pads[] = {
NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
};
static const iomux_v3_cfg_t i2c2_pads[] = {
NEW_PAD_CTRL(MX53_PAD_KEY_ROW3__I2C2_SDA, I2C_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_KEY_COL3__I2C2_SCL, I2C_PAD_CTRL),
};
switch (port_number) {
case 0:
imx_iomux_v3_setup_multiple_pads(i2c1_pads,
ARRAY_SIZE(i2c1_pads));
break;
case 1:
imx_iomux_v3_setup_multiple_pads(i2c2_pads,
ARRAY_SIZE(i2c2_pads));
break;
default:
printf("Warning: Wrong I2C port number\n");
break;
}
}
void power_init(void)
{
unsigned int val;
struct pmic *p;
int ret;
ret = pmic_init(I2C_0);
if (ret)
return;
p = pmic_get("FSL_PMIC");
if (!p)
return;
/* Set VDDA to 1.25V */
pmic_reg_read(p, REG_SW_2, &val);
val &= ~SWX_OUT_MASK;
val |= SWX_OUT_1_25;
pmic_reg_write(p, REG_SW_2, val);
/*
* Need increase VCC and VDDA to 1.3V
* according to MX53 IC TO2 datasheet.
*/
if (is_soc_rev(CHIP_REV_2_0) == 0) {
/* Set VCC to 1.3V for TO2 */
pmic_reg_read(p, REG_SW_1, &val);
val &= ~SWX_OUT_MASK;
val |= SWX_OUT_1_30;
pmic_reg_write(p, REG_SW_1, val);
/* Set VDDA to 1.3V for TO2 */
pmic_reg_read(p, REG_SW_2, &val);
val &= ~SWX_OUT_MASK;
val |= SWX_OUT_1_30;
pmic_reg_write(p, REG_SW_2, val);
}
}
static void setup_iomux_fec(void)
{
static const iomux_v3_cfg_t fec_pads[] = {
NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
PAD_CTL_HYS | PAD_CTL_PKE),
};
imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
}
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[2] = {
{MMC_SDHC1_BASE_ADDR},
{MMC_SDHC3_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret;
imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA11__GPIO3_11);
gpio_direction_input(IMX_GPIO_NR(3, 11));
imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA13__GPIO3_13);
gpio_direction_input(IMX_GPIO_NR(3, 13));
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
ret = !gpio_get_value(IMX_GPIO_NR(3, 13));
else
ret = !gpio_get_value(IMX_GPIO_NR(3, 11));
return ret;
}
#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
PAD_CTL_PUS_100K_UP)
#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
PAD_CTL_DSE_HIGH)
int board_mmc_init(bd_t *bis)
{
static const iomux_v3_cfg_t sd1_pads[] = {
NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
MX53_PAD_EIM_DA13__GPIO3_13,
};
static const iomux_v3_cfg_t sd2_pads[] = {
NEW_PAD_CTRL(MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
SD_CMD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_IORDY__ESDHC3_CLK, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA8__ESDHC3_DAT0, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA9__ESDHC3_DAT1, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA10__ESDHC3_DAT2, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA11__ESDHC3_DAT3, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__ESDHC3_DAT4, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__ESDHC3_DAT5, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__ESDHC3_DAT6, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__ESDHC3_DAT7, SD_PAD_CTRL),
MX53_PAD_EIM_DA11__GPIO3_11,
};
u32 index;
s32 status = 0;
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
switch (index) {
case 0:
imx_iomux_v3_setup_multiple_pads(sd1_pads,
ARRAY_SIZE(sd1_pads));
break;
case 1:
imx_iomux_v3_setup_multiple_pads(sd2_pads,
ARRAY_SIZE(sd2_pads));
break;
default:
printf("Warning: you configured more ESDHC controller"
"(%d) as supported by the board(2)\n",
CONFIG_SYS_FSL_ESDHC_NUM);
return status;
}
status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
}
return status;
}
#endif
int board_early_init_f(void)
{
setup_iomux_uart();
setup_iomux_fec();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
{"mmc0", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x12)},
{"mmc1", MAKE_CFGVAL(0x40, 0x20, 0x08, 0x12)},
{NULL, 0},
};
#endif
int board_late_init(void)
{
setup_i2c(1);
power_init();
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
return 0;
}
int checkboard(void)
{
puts("Board: MX53EVK\n");
return 0;
}
Reference in a new issue View git blame Copy permalink