mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
c62db35d52
Rather than relying on common.h to provide this include, which is going away at some point, include it explicitly in each file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
336 lines
7.2 KiB
C
336 lines
7.2 KiB
C
/*
|
|
* (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>
|
|
#include <asm/mach-types.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)
|
|
{
|
|
irq_init();
|
|
|
|
/* 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
|