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/*
* (C) Heiko Schocher, DENX Software Engineering, hs@denx.de.
* Based on:
* U-Boot:board/davinci/da8xxevm/da850evm.c
*
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
*
* Based on da830evm.c. Original Copyrights follow:
*
* Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. <nick.thompson@gefanuc.com>
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <net.h>
#include <netdev.h>
#include <spi.h>
#include <spi_flash.h>
#include <asm/arch/hardware.h>
#include <asm/ti-common/davinci_nand.h>
#include <asm/arch/emac_defs.h>
#include <asm/arch/pinmux_defs.h>
#include <asm/io.h>
#include <asm/arch/davinci_misc.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <hwconfig.h>
#include <bootstage.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_DRIVER_TI_EMAC
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
#define HAS_RMII 1
#else
#define HAS_RMII 0
#endif
#endif /* CONFIG_DRIVER_TI_EMAC */
void dsp_lpsc_on(unsigned domain, unsigned int id)
{
dv_reg_p mdstat, mdctl, ptstat, ptcmd;
struct davinci_psc_regs *psc_regs;
psc_regs = davinci_psc0_regs;
mdstat = &psc_regs->psc0.mdstat[id];
mdctl = &psc_regs->psc0.mdctl[id];
ptstat = &psc_regs->ptstat;
ptcmd = &psc_regs->ptcmd;
while (*ptstat & (0x1 << domain))
;
if ((*mdstat & 0x1f) == 0x03)
return; /* Already on and enabled */
*mdctl |= 0x03;
*ptcmd = 0x1 << domain;
while (*ptstat & (0x1 << domain))
;
while ((*mdstat & 0x1f) != 0x03)
; /* Probably an overkill... */
}
static void dspwake(void)
{
unsigned *resetvect = (unsigned *)DAVINCI_L3CBARAM_BASE;
u32 val;
/* if the device is ARM only, return */
if ((readl(CHIP_REV_ID_REG) & 0x3f) == 0x10)
return;
if (hwconfig_subarg_cmp_f("dsp", "wake", "no", NULL))
return;
*resetvect++ = 0x1E000; /* DSP Idle */
/* clear out the next 10 words as NOP */
memset(resetvect, 0, sizeof(unsigned) * 10);
/* setup the DSP reset vector */
writel(DAVINCI_L3CBARAM_BASE, HOST1CFG);
dsp_lpsc_on(1, DAVINCI_LPSC_GEM);
val = readl(PSC0_MDCTL + (15 * 4));
val |= 0x100;
writel(val, (PSC0_MDCTL + (15 * 4)));
}
int misc_init_r(void)
{
dspwake();
return 0;
}
static const struct pinmux_config gpio_pins[] = {
/* GP7[14] selects bootmode*/
{ pinmux(16), 8, 3 }, /* GP7[14] */
};
const struct pinmux_resource pinmuxes[] = {
#ifdef CONFIG_DRIVER_TI_EMAC
PINMUX_ITEM(emac_pins_mdio),
#ifdef CONFIG_DRIVER_TI_EMAC_USE_RMII
PINMUX_ITEM(emac_pins_rmii),
#else
PINMUX_ITEM(emac_pins_mii),
#endif
#endif
PINMUX_ITEM(uart2_pins_txrx),
PINMUX_ITEM(uart2_pins_rtscts),
PINMUX_ITEM(uart0_pins_txrx),
PINMUX_ITEM(uart0_pins_rtscts),
#ifdef CONFIG_NAND_DAVINCI
PINMUX_ITEM(emifa_pins_cs3),
PINMUX_ITEM(emifa_pins_nand),
#endif
PINMUX_ITEM(gpio_pins),
};
const int pinmuxes_size = ARRAY_SIZE(pinmuxes);
const struct lpsc_resource lpsc[] = {
{ DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
{ DAVINCI_LPSC_EMAC }, /* image download */
{ DAVINCI_LPSC_UART2 }, /* console */
{ DAVINCI_LPSC_UART0 }, /* console */
{ DAVINCI_LPSC_GPIO },
};
const int lpsc_size = ARRAY_SIZE(lpsc);
#ifndef CONFIG_DA850_EVM_MAX_CPU_CLK
#define CONFIG_DA850_EVM_MAX_CPU_CLK 300000000
#endif
#define REV_AM18X_EVM 0x100
/*
* get_board_rev() - setup to pass kernel board revision information
* Returns:
* bit[0-3] Maximum cpu clock rate supported by onboard SoC
* 0000b - 300 MHz
* 0001b - 372 MHz
* 0010b - 408 MHz
* 0011b - 456 MHz
*/
u32 get_board_rev(void)
{
char *s;
u32 maxcpuclk = CONFIG_DA850_EVM_MAX_CPU_CLK;
u32 rev = 0;
s = getenv("maxcpuclk");
if (s)
maxcpuclk = simple_strtoul(s, NULL, 10);
if (maxcpuclk >= 456000000)
rev = 3;
else if (maxcpuclk >= 408000000)
rev = 2;
else if (maxcpuclk >= 372000000)
rev = 1;
#ifdef CONFIG_DA850_AM18X_EVM
rev |= REV_AM18X_EVM;
#endif
return rev;
}
int board_early_init_f(void)
{
/*
* Power on required peripherals
* ARM does not have access by default to PSC0 and PSC1
* assuming here that the DSP bootloader has set the IOPU
* such that PSC access is available to ARM
*/
if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
return 1;
return 0;
}
int board_init(void)
{
#ifndef CONFIG_USE_IRQ
irq_init();
#endif
/* arch number of the board */
gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA850_EVM;
/* address of boot parameters */
gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
/* setup the SUSPSRC for ARM to control emulation suspend */
writel(readl(&davinci_syscfg_regs->suspsrc) &
~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
DAVINCI_SYSCFG_SUSPSRC_UART0),
&davinci_syscfg_regs->suspsrc);
/* configure pinmux settings */
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
return 1;
#ifdef CONFIG_DRIVER_TI_EMAC
davinci_emac_mii_mode_sel(HAS_RMII);
#endif /* CONFIG_DRIVER_TI_EMAC */
/* enable the console UART */
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
DAVINCI_UART_PWREMU_MGMT_UTRST),
#if (CONFIG_SYS_NS16550_COM1 == DAVINCI_UART0_BASE)
&davinci_uart0_ctrl_regs->pwremu_mgmt);
#else
&davinci_uart2_ctrl_regs->pwremu_mgmt);
#endif
return 0;
}
#ifdef CONFIG_DRIVER_TI_EMAC
/*
* Initializes on-board ethernet controllers.
*/
int board_eth_init(bd_t *bis)
{
if (!davinci_emac_initialize()) {
printf("Error: Ethernet init failed!\n");
return -1;
}
return 0;
}
#endif /* CONFIG_DRIVER_TI_EMAC */
static int init_led(int gpio, char *name, int val)
{
int ret;
ret = gpio_request(gpio, name);
if (ret)
return -1;
ret = gpio_direction_output(gpio, val);
if (ret)
return -1;
return gpio;
}
#define LED_ON 0
#define LED_OFF 1
#if !defined(CONFIG_SPL_BUILD)
#ifdef CONFIG_SHOW_BOOT_PROGRESS
void show_boot_progress(int status)
{
static int red;
static int green;
if (red == 0)
red = init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
if (red != CONFIG_IPAM390_GPIO_LED_RED)
return;
if (green == 0)
green = init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green",
LED_OFF);
if (green != CONFIG_IPAM390_GPIO_LED_GREEN)
return;
switch (status) {
case BOOTSTAGE_ID_RUN_OS:
/*
* set normal state
* LED Red : on
* LED green: off
*/
gpio_set_value(red, LED_ON);
gpio_set_value(green, LED_OFF);
break;
case BOOTSTAGE_ID_MAIN_LOOP:
/*
* U-Boot operation
* LED Red : on
* LED green: on
*/
gpio_set_value(red, LED_ON);
gpio_set_value(green, LED_ON);
break;
}
}
#endif
#endif
#ifdef CONFIG_SPL_OS_BOOT
int spl_start_uboot(void)
{
int ret;
int bootmode = 0;
/*
* GP7[14] selects bootmode:
* 1: boot linux
* 0: boot u-boot
* if error accessing gpio boot U-Boot
*
* SPL bootmode
* 0: boot linux
* 1: boot u-boot
*/
ret = gpio_request(CONFIG_IPAM390_GPIO_BOOTMODE , "bootmode");
if (ret)
bootmode = 1;
if (!bootmode) {
ret = gpio_direction_input(CONFIG_IPAM390_GPIO_BOOTMODE);
if (ret)
bootmode = 1;
}
if (!bootmode)
ret = gpio_get_value(CONFIG_IPAM390_GPIO_BOOTMODE);
if (!bootmode)
if (ret == 0)
bootmode = 1;
/*
* LED red : on
* LED green: off
*/
init_led(CONFIG_IPAM390_GPIO_LED_RED, "red", LED_ON);
init_led(CONFIG_IPAM390_GPIO_LED_GREEN, "green", LED_OFF);
return bootmode;
}
#endif