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u-boot/board/freescale/mx51evk/mx51evk.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

399 lines
11 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2009 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-mx51.h>
#include <linux/errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/mach-imx/mx5_video.h>
#include <i2c.h>
#include <input.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <power/pmic.h>
#include <fsl_pmic.h>
#include <mc13892.h>
#include <usb/ehci-ci.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[2] = {
{MMC_SDHC1_BASE_ADDR},
{MMC_SDHC2_BASE_ADDR},
};
#endif
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;
}
u32 get_board_rev(void)
{
u32 rev = get_cpu_rev();
if (!gpio_get_value(IMX_GPIO_NR(1, 22)))
rev |= BOARD_REV_2_0 << BOARD_VER_OFFSET;
return rev;
}
#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_HIGH)
static void setup_iomux_uart(void)
{
static const iomux_v3_cfg_t uart_pads[] = {
MX51_PAD_UART1_RXD__UART1_RXD,
MX51_PAD_UART1_TXD__UART1_TXD,
NEW_PAD_CTRL(MX51_PAD_UART1_RTS__UART1_RTS, UART_PAD_CTRL),
NEW_PAD_CTRL(MX51_PAD_UART1_CTS__UART1_CTS, UART_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
}
static void setup_iomux_fec(void)
{
static const iomux_v3_cfg_t fec_pads[] = {
NEW_PAD_CTRL(MX51_PAD_EIM_EB2__FEC_MDIO, PAD_CTL_HYS |
PAD_CTL_PUS_22K_UP | PAD_CTL_ODE |
PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST),
MX51_PAD_NANDF_CS3__FEC_MDC,
NEW_PAD_CTRL(MX51_PAD_EIM_CS3__FEC_RDATA3, MX51_PAD_CTRL_2),
NEW_PAD_CTRL(MX51_PAD_EIM_CS2__FEC_RDATA2, MX51_PAD_CTRL_2),
NEW_PAD_CTRL(MX51_PAD_EIM_EB3__FEC_RDATA1, MX51_PAD_CTRL_2),
MX51_PAD_NANDF_D9__FEC_RDATA0,
MX51_PAD_NANDF_CS6__FEC_TDATA3,
MX51_PAD_NANDF_CS5__FEC_TDATA2,
MX51_PAD_NANDF_CS4__FEC_TDATA1,
MX51_PAD_NANDF_D8__FEC_TDATA0,
MX51_PAD_NANDF_CS7__FEC_TX_EN,
MX51_PAD_NANDF_CS2__FEC_TX_ER,
MX51_PAD_NANDF_RDY_INT__FEC_TX_CLK,
NEW_PAD_CTRL(MX51_PAD_NANDF_RB2__FEC_COL, MX51_PAD_CTRL_4),
NEW_PAD_CTRL(MX51_PAD_NANDF_RB3__FEC_RX_CLK, MX51_PAD_CTRL_4),
MX51_PAD_EIM_CS5__FEC_CRS,
MX51_PAD_EIM_CS4__FEC_RX_ER,
NEW_PAD_CTRL(MX51_PAD_NANDF_D11__FEC_RX_DV, MX51_PAD_CTRL_4),
};
imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
}
#ifdef CONFIG_MXC_SPI
static void setup_iomux_spi(void)
{
static const iomux_v3_cfg_t spi_pads[] = {
NEW_PAD_CTRL(MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, PAD_CTL_HYS |
PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_CSPI1_MISO__ECSPI1_MISO, PAD_CTL_HYS |
PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_CSPI1_SS1__ECSPI1_SS1,
MX51_GPIO_PAD_CTRL),
MX51_PAD_CSPI1_SS0__ECSPI1_SS0,
NEW_PAD_CTRL(MX51_PAD_CSPI1_RDY__ECSPI1_RDY, MX51_PAD_CTRL_2),
NEW_PAD_CTRL(MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, PAD_CTL_HYS |
PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST),
};
imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads));
}
#endif
#ifdef CONFIG_USB_EHCI_MX5
#define MX51EVK_USBH1_HUB_RST IMX_GPIO_NR(1, 7)
#define MX51EVK_USBH1_STP IMX_GPIO_NR(1, 27)
#define MX51EVK_USB_CLK_EN_B IMX_GPIO_NR(2, 1)
#define MX51EVK_USB_PHY_RESET IMX_GPIO_NR(2, 5)
static void setup_usb_h1(void)
{
static const iomux_v3_cfg_t usb_h1_pads[] = {
MX51_PAD_USBH1_CLK__USBH1_CLK,
MX51_PAD_USBH1_DIR__USBH1_DIR,
MX51_PAD_USBH1_STP__USBH1_STP,
MX51_PAD_USBH1_NXT__USBH1_NXT,
MX51_PAD_USBH1_DATA0__USBH1_DATA0,
MX51_PAD_USBH1_DATA1__USBH1_DATA1,
MX51_PAD_USBH1_DATA2__USBH1_DATA2,
MX51_PAD_USBH1_DATA3__USBH1_DATA3,
MX51_PAD_USBH1_DATA4__USBH1_DATA4,
MX51_PAD_USBH1_DATA5__USBH1_DATA5,
MX51_PAD_USBH1_DATA6__USBH1_DATA6,
MX51_PAD_USBH1_DATA7__USBH1_DATA7,
NEW_PAD_CTRL(MX51_PAD_GPIO1_7__GPIO1_7, 0), /* H1 hub reset */
MX51_PAD_EIM_D17__GPIO2_1,
MX51_PAD_EIM_D21__GPIO2_5, /* PHY reset */
};
imx_iomux_v3_setup_multiple_pads(usb_h1_pads, ARRAY_SIZE(usb_h1_pads));
}
int board_ehci_hcd_init(int port)
{
/* Set USBH1_STP to GPIO and toggle it */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_USBH1_STP__GPIO1_27,
MX51_USBH_PAD_CTRL));
gpio_direction_output(MX51EVK_USBH1_STP, 0);
gpio_direction_output(MX51EVK_USB_PHY_RESET, 0);
mdelay(10);
gpio_set_value(MX51EVK_USBH1_STP, 1);
/* Set back USBH1_STP to be function */
imx_iomux_v3_setup_pad(MX51_PAD_USBH1_STP__USBH1_STP);
/* De-assert USB PHY RESETB */
gpio_set_value(MX51EVK_USB_PHY_RESET, 1);
/* Drive USB_CLK_EN_B line low */
gpio_direction_output(MX51EVK_USB_CLK_EN_B, 0);
/* Reset USB hub */
gpio_direction_output(MX51EVK_USBH1_HUB_RST, 0);
mdelay(2);
gpio_set_value(MX51EVK_USBH1_HUB_RST, 1);
return 0;
}
#endif
static void power_init(void)
{
unsigned int val;
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE;
struct pmic *p;
int ret;
ret = pmic_init(CONFIG_FSL_PMIC_BUS);
if (ret)
return;
p = pmic_get("FSL_PMIC");
if (!p)
return;
/* Write needed to Power Gate 2 register */
pmic_reg_read(p, REG_POWER_MISC, &val);
val &= ~PWGT2SPIEN;
pmic_reg_write(p, REG_POWER_MISC, val);
/* Externally powered */
pmic_reg_read(p, REG_CHARGE, &val);
val |= ICHRG0 | ICHRG1 | ICHRG2 | ICHRG3 | CHGAUTOB;
pmic_reg_write(p, REG_CHARGE, val);
/* power up the system first */
pmic_reg_write(p, REG_POWER_MISC, PWUP);
/* Set core voltage to 1.1V */
pmic_reg_read(p, REG_SW_0, &val);
val = (val & ~SWx_VOLT_MASK) | SWx_1_100V;
pmic_reg_write(p, REG_SW_0, val);
/* Setup VCC (SW2) to 1.25 */
pmic_reg_read(p, REG_SW_1, &val);
val = (val & ~SWx_VOLT_MASK) | SWx_1_250V;
pmic_reg_write(p, REG_SW_1, val);
/* Setup 1V2_DIG1 (SW3) to 1.25 */
pmic_reg_read(p, REG_SW_2, &val);
val = (val & ~SWx_VOLT_MASK) | SWx_1_250V;
pmic_reg_write(p, REG_SW_2, val);
udelay(50);
/* Raise the core frequency to 800MHz */
writel(0x0, &mxc_ccm->cacrr);
/* Set switchers in Auto in NORMAL mode & STANDBY mode */
/* Setup the switcher mode for SW1 & SW2*/
pmic_reg_read(p, REG_SW_4, &val);
val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
(SWMODE_MASK << SWMODE2_SHIFT)));
val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
(SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
pmic_reg_write(p, REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
pmic_reg_read(p, REG_SW_5, &val);
val = (val & ~((SWMODE_MASK << SWMODE3_SHIFT) |
(SWMODE_MASK << SWMODE4_SHIFT)));
val |= (SWMODE_AUTO_AUTO << SWMODE3_SHIFT) |
(SWMODE_AUTO_AUTO << SWMODE4_SHIFT);
pmic_reg_write(p, REG_SW_5, val);
/* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.6V */
pmic_reg_read(p, REG_SETTING_0, &val);
val &= ~(VCAM_MASK | VGEN3_MASK | VDIG_MASK);
val |= VDIG_1_65 | VGEN3_1_8 | VCAM_2_6;
pmic_reg_write(p, REG_SETTING_0, val);
/* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
pmic_reg_read(p, REG_SETTING_1, &val);
val &= ~(VVIDEO_MASK | VSD_MASK | VAUDIO_MASK);
val |= VSD_3_15 | VAUDIO_3_0 | VVIDEO_2_775;
pmic_reg_write(p, REG_SETTING_1, val);
/* Configure VGEN3 and VCAM regulators to use external PNP */
val = VGEN3CONFIG | VCAMCONFIG;
pmic_reg_write(p, REG_MODE_1, val);
udelay(200);
/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
VVIDEOEN | VAUDIOEN | VSDEN;
pmic_reg_write(p, REG_MODE_1, val);
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_EIM_A20__GPIO2_14,
NO_PAD_CTRL));
gpio_direction_output(IMX_GPIO_NR(2, 14), 0);
udelay(500);
gpio_set_value(IMX_GPIO_NR(2, 14), 1);
}
#ifdef CONFIG_FSL_ESDHC
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(NEW_PAD_CTRL(MX51_PAD_GPIO1_0__GPIO1_0,
NO_PAD_CTRL));
gpio_direction_input(IMX_GPIO_NR(1, 0));
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX51_PAD_GPIO1_6__GPIO1_6,
NO_PAD_CTRL));
gpio_direction_input(IMX_GPIO_NR(1, 6));
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
ret = !gpio_get_value(IMX_GPIO_NR(1, 0));
else
ret = !gpio_get_value(IMX_GPIO_NR(1, 6));
return ret;
}
int board_mmc_init(bd_t *bis)
{
static const iomux_v3_cfg_t sd1_pads[] = {
NEW_PAD_CTRL(MX51_PAD_SD1_CMD__SD1_CMD, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_CLK__SD1_CLK, PAD_CTL_DSE_MAX |
PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA0__SD1_DATA0, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA1__SD1_DATA1, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA2__SD1_DATA2, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD1_DATA3__SD1_DATA3, PAD_CTL_DSE_MAX |
PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_HYS),
NEW_PAD_CTRL(MX51_PAD_GPIO1_1__SD1_WP, PAD_CTL_HYS),
};
static const iomux_v3_cfg_t sd2_pads[] = {
NEW_PAD_CTRL(MX51_PAD_SD2_CMD__SD2_CMD,
PAD_CTL_DSE_MAX | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD2_CLK__SD2_CLK,
PAD_CTL_DSE_MAX | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD2_DATA0__SD2_DATA0,
PAD_CTL_DSE_MAX | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD2_DATA1__SD2_DATA1,
PAD_CTL_DSE_MAX | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD2_DATA2__SD2_DATA2,
PAD_CTL_DSE_MAX | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_SD2_DATA3__SD2_DATA3,
PAD_CTL_DSE_MAX | PAD_CTL_SRE_FAST),
NEW_PAD_CTRL(MX51_PAD_GPIO1_6__GPIO1_6, PAD_CTL_HYS),
NEW_PAD_CTRL(MX51_PAD_GPIO1_5__GPIO1_5, PAD_CTL_HYS),
};
u32 index;
int ret;
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_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 -EINVAL;
}
ret = fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
if (ret)
return ret;
}
return 0;
}
#endif
int board_early_init_f(void)
{
setup_iomux_uart();
setup_iomux_fec();
#ifdef CONFIG_USB_EHCI_MX5
setup_usb_h1();
#endif
setup_iomux_lcd();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#ifdef CONFIG_MXC_SPI
setup_iomux_spi();
power_init();
#endif
return 0;
}
#endif
/*
* Do not overwrite the console
* Use always serial for U-Boot console
*/
int overwrite_console(void)
{
return 1;
}
int checkboard(void)
{
puts("Board: MX51EVK\n");
return 0;
}
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