stm32mp157
/
uboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
uboot/u-boot-stm32mp-2020.01/board/ti/evm/evm.c

313 lines
7.4 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2004-2011
* Texas Instruments, <www.ti.com>
*
* Author :
* Manikandan Pillai <mani.pillai@ti.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@ti.com>
*/
#include <common.h>
#include <dm.h>
#include <env.h>
#include <ns16550.h>
#include <netdev.h>
#include <serial.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/gpio.h>
#include <i2c.h>
#include <twl4030.h>
#include <asm/mach-types.h>
#include <asm/omap_musb.h>
#include <linux/mtd/rawnand.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/musb.h>
#include "evm.h"
#define OMAP3EVM_GPIO_ETH_RST_GEN1 64
#define OMAP3EVM_GPIO_ETH_RST_GEN2 7
DECLARE_GLOBAL_DATA_PTR;
static u32 omap3_evm_version;
u32 get_omap3_evm_rev(void)
{
return omap3_evm_version;
}
static void omap3_evm_get_revision(void)
{
#if defined(CONFIG_CMD_NET)
/*
* Board revision can be ascertained only by identifying
* the Ethernet chipset.
*/
unsigned int smsc_id;
/* Ethernet PHY ID is stored at ID_REV register */
smsc_id = readl(CONFIG_SMC911X_BASE + 0x50) & 0xFFFF0000;
printf("Read back SMSC id 0x%x\n", smsc_id);
switch (smsc_id) {
/* SMSC9115 chipset */
case 0x01150000:
omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
break;
/* SMSC 9220 chipset */
case 0x92200000:
default:
omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
}
#else /* !CONFIG_CMD_NET */
#if defined(CONFIG_STATIC_BOARD_REV)
/* Look for static defintion of the board revision */
omap3_evm_version = CONFIG_STATIC_BOARD_REV;
#else
/* Fallback to the default above */
omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
#endif /* CONFIG_STATIC_BOARD_REV */
#endif /* CONFIG_CMD_NET */
}
#if defined(CONFIG_USB_MUSB_GADGET) || defined(CONFIG_USB_MUSB_HOST)
/* MUSB port on OMAP3EVM Rev >= E requires extvbus programming. */
u8 omap3_evm_need_extvbus(void)
{
u8 retval = 0;
if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
retval = 1;
return retval;
}
#endif /* CONFIG_USB_MUSB_{GADGET,HOST} */
/*
* Routine: board_init
* Description: Early hardware init.
*/
int board_init(void)
{
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* board id for Linux */
gd->bd->bi_arch_number = MACH_TYPE_OMAP3EVM;
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
return 0;
}
#if defined(CONFIG_SPL_OS_BOOT)
int spl_start_uboot(void)
{
/* break into full u-boot on 'c' */
if (serial_tstc() && serial_getc() == 'c')
return 1;
return 0;
}
#endif /* CONFIG_SPL_OS_BOOT */
#if defined(CONFIG_SPL_BUILD)
/*
* Routine: get_board_mem_timings
* Description: If we use SPL then there is no x-loader nor config header
* so we have to setup the DDR timings ourself on the first bank. This
* provides the timing values back to the function that configures
* the memory.
*/
void get_board_mem_timings(struct board_sdrc_timings *timings)
{
int pop_mfr, pop_id;
/*
* We need to identify what PoP memory is on the board so that
* we know what timings to use. To map the ID values please see
* nand_ids.c
*/
identify_nand_chip(&pop_mfr, &pop_id);
if (pop_mfr == NAND_MFR_HYNIX && pop_id == 0xbc) {
/* 256MB DDR */
timings->mcfg = HYNIX_V_MCFG_200(256 << 20);
timings->ctrla = HYNIX_V_ACTIMA_200;
timings->ctrlb = HYNIX_V_ACTIMB_200;
} else {
/* 128MB DDR */
timings->mcfg = MICRON_V_MCFG_165(128 << 20);
timings->ctrla = MICRON_V_ACTIMA_165;
timings->ctrlb = MICRON_V_ACTIMB_165;
}
timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
timings->mr = MICRON_V_MR_165;
}
#endif /* CONFIG_SPL_BUILD */
#if defined(CONFIG_USB_MUSB_OMAP2PLUS)
static struct musb_hdrc_config musb_config = {
.multipoint = 1,
.dyn_fifo = 1,
.num_eps = 16,
.ram_bits = 12,
};
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
};
static struct musb_hdrc_platform_data musb_plat = {
#if defined(CONFIG_USB_MUSB_HOST)
.mode = MUSB_HOST,
#elif defined(CONFIG_USB_MUSB_GADGET)
.mode = MUSB_PERIPHERAL,
#else
#error "Please define either CONFIG_USB_MUSB_HOST or CONFIG_USB_MUSB_GADGET"
#endif /* CONFIG_USB_MUSB_{GADGET,HOST} */
.config = &musb_config,
.power = 100,
.platform_ops = &omap2430_ops,
.board_data = &musb_board_data,
};
#endif /* CONFIG_USB_MUSB_OMAP2PLUS */
/*
* Routine: misc_init_r
* Description: Init ethernet (done here so udelay works)
*/
int misc_init_r(void)
{
twl4030_power_init();
#ifdef CONFIG_SYS_I2C_OMAP24XX
i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
#endif
#if defined(CONFIG_CMD_NET)
setup_net_chip();
#endif
omap3_evm_get_revision();
#if defined(CONFIG_CMD_NET)
reset_net_chip();
#endif
omap_die_id_display();
#if defined(CONFIG_USB_MUSB_OMAP2PLUS)
musb_register(&musb_plat, &musb_board_data, (void *)MUSB_BASE);
#endif
#if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)
omap_die_id_usbethaddr();
#endif
return 0;
}
/*
* 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)
{
MUX_EVM();
}
#if defined(CONFIG_CMD_NET)
/*
* Routine: setup_net_chip
* Description: Setting up the configuration GPMC registers specific to the
* Ethernet hardware.
*/
static void setup_net_chip(void)
{
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
/* Configure GPMC registers */
writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[5].config1);
writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[5].config2);
writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[5].config3);
writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[5].config4);
writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[5].config5);
writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[5].config6);
writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[5].config7);
/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
&ctrl_base->gpmc_nadv_ale);
}
/**
* Reset the ethernet chip.
*/
static void reset_net_chip(void)
{
int ret;
int rst_gpio;
if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1) {
rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN1;
} else {
rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN2;
}
ret = gpio_request(rst_gpio, "");
if (ret < 0) {
printf("Unable to get GPIO %d\n", rst_gpio);
return ;
}
/* Configure as output */
gpio_direction_output(rst_gpio, 0);
/* Send a pulse on the GPIO pin */
gpio_set_value(rst_gpio, 1);
udelay(1);
gpio_set_value(rst_gpio, 0);
udelay(1);
gpio_set_value(rst_gpio, 1);
}
int board_eth_init(bd_t *bis)
{
#if defined(CONFIG_SMC911X)
env_set("ethaddr", NULL);
return smc911x_initialize(0, CONFIG_SMC911X_BASE);
#else
return 0;
#endif
}
#endif /* CONFIG_CMD_NET */
#if defined(CONFIG_MMC)
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0, -1, -1);
}
void board_mmc_power_init(void)
{
twl4030_power_mmc_init(0);
}
#endif /* CONFIG_MMC */
#if defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET) && !defined(CONFIG_CMD_NET)
int board_eth_init(bd_t *bis)
{
return usb_eth_initialize(bis);
}
#endif /* CONFIG_USB_ETHER */
Reference in New Issue View Git Blame Copy Permalink