u-boot/board/gumstix/duovero/duovero.c

269 lines
6.2 KiB
C
Raw Normal View History

/*
* (C) Copyright 2013
* Gumstix Inc. <www.gumstix.com>
* Maintainer: Ash Charles <ash@gumstix.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <twl6030.h>
#include <asm/emif.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#include "duovero_mux_data.h"
#define WIFI_EN 43
#if defined(CONFIG_CMD_NET)
#define SMSC_NRESET 45
static void setup_net_chip(void);
#endif
#ifdef CONFIG_USB_EHCI
#include <usb.h>
#include <asm/arch/ehci.h>
#include <asm/ehci-omap.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
"Board: duovero\n"
};
struct omap4_scrm_regs *const scrm = (struct omap4_scrm_regs *)0x4a30a000;
/**
* @brief board_init
*
* @return 0
*/
int board_init(void)
{
gpmc_init();
gd->bd->bi_arch_number = MACH_TYPE_OMAP4_DUOVERO;
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
return 0;
}
/**
* @brief misc_init_r - Configure board specific configurations
* such as power configurations, ethernet initialization as phase2 of
* boot sequence
*
* @return 0
*/
int misc_init_r(void)
{
int ret = 0;
u8 val;
/* wifi setup: first enable 32Khz clock from 6030 pmic */
val = 0xe1;
ret = i2c_write(TWL6030_CHIP_PM, 0xbe, 1, &val, 1);
if (ret)
printf("Failed to enable 32Khz clock to wifi module\n");
/* then setup WIFI_EN as an output pin and send reset pulse */
if (!gpio_request(WIFI_EN, "")) {
gpio_direction_output(WIFI_EN, 0);
gpio_set_value(WIFI_EN, 1);
udelay(1);
gpio_set_value(WIFI_EN, 0);
udelay(1);
gpio_set_value(WIFI_EN, 1);
}
#if defined(CONFIG_CMD_NET)
setup_net_chip();
#endif
return 0;
}
void set_muxconf_regs(void)
{
do_set_mux((*ctrl)->control_padconf_core_base,
core_padconf_array_essential,
sizeof(core_padconf_array_essential) /
sizeof(struct pad_conf_entry));
do_set_mux((*ctrl)->control_padconf_wkup_base,
wkup_padconf_array_essential,
sizeof(wkup_padconf_array_essential) /
sizeof(struct pad_conf_entry));
do_set_mux((*ctrl)->control_padconf_core_base,
core_padconf_array_non_essential,
sizeof(core_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
do_set_mux((*ctrl)->control_padconf_wkup_base,
wkup_padconf_array_non_essential,
sizeof(wkup_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
}
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0, -1, -1);
}
void board_mmc_power_init(void)
{
twl6030_power_mmc_init(0);
}
#endif
#if defined(CONFIG_CMD_NET)
#define GPMC_SIZE_16M 0xF
#define GPMC_BASEADDR_MASK 0x3F
#define GPMC_CS_ENABLE 0x1
static void enable_gpmc_net_config(const u32 *gpmc_config, struct gpmc_cs *cs,
u32 base, u32 size)
{
writel(0, &cs->config7);
sdelay(1000);
/* Delay for settling */
writel(gpmc_config[0], &cs->config1);
writel(gpmc_config[1], &cs->config2);
writel(gpmc_config[2], &cs->config3);
writel(gpmc_config[3], &cs->config4);
writel(gpmc_config[4], &cs->config5);
writel(gpmc_config[5], &cs->config6);
/*
* Enable the config. size is the CS size and goes in
* bits 11:8. We set bit 6 to enable this CS and the base
* address goes into bits 5:0.
*/
writel((size << 8) | (GPMC_CS_ENABLE << 6) |
((base >> 24) & GPMC_BASEADDR_MASK),
&cs->config7);
sdelay(2000);
}
/* GPMC CS configuration for an SMSC LAN9221 ethernet controller */
#define NET_LAN9221_GPMC_CONFIG1 0x2a001203
#define NET_LAN9221_GPMC_CONFIG2 0x000a0a02
#define NET_LAN9221_GPMC_CONFIG3 0x00020200
#define NET_LAN9221_GPMC_CONFIG4 0x0a030a03
#define NET_LAN9221_GPMC_CONFIG5 0x000a0a0a
#define NET_LAN9221_GPMC_CONFIG6 0x8a070707
#define NET_LAN9221_GPMC_CONFIG7 0x00000f6c
/* GPMC definitions for LAN9221 chips on expansion boards */
static const u32 gpmc_lan_config[] = {
NET_LAN9221_GPMC_CONFIG1,
NET_LAN9221_GPMC_CONFIG2,
NET_LAN9221_GPMC_CONFIG3,
NET_LAN9221_GPMC_CONFIG4,
NET_LAN9221_GPMC_CONFIG5,
NET_LAN9221_GPMC_CONFIG6,
/*CONFIG7- computed as params */
};
/*
* Routine: setup_net_chip
* Description: Setting up the configuration GPMC registers specific to the
* Ethernet hardware.
*/
static void setup_net_chip(void)
{
enable_gpmc_net_config(gpmc_lan_config, &gpmc_cfg->cs[5], 0x2C000000,
GPMC_SIZE_16M);
/* Make GPIO SMSC_NRESET as output pin and send reset pulse */
if (!gpio_request(SMSC_NRESET, "")) {
gpio_direction_output(SMSC_NRESET, 0);
gpio_set_value(SMSC_NRESET, 1);
udelay(1);
gpio_set_value(SMSC_NRESET, 0);
udelay(1);
gpio_set_value(SMSC_NRESET, 1);
}
}
#endif
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
return rc;
}
#ifdef CONFIG_USB_EHCI
static struct omap_usbhs_board_data usbhs_bdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
};
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
int ret;
unsigned int utmi_clk;
u32 auxclk, altclksrc;
/* Now we can enable our port clocks */
utmi_clk = readl((void *)CM_L3INIT_HSUSBHOST_CLKCTRL);
utmi_clk |= HSUSBHOST_CLKCTRL_CLKSEL_UTMI_P1_MASK;
setbits_le32((void *)CM_L3INIT_HSUSBHOST_CLKCTRL, utmi_clk);
auxclk = readl(&scrm->auxclk3);
/* Select sys_clk */
auxclk &= ~AUXCLK_SRCSELECT_MASK;
auxclk |= AUXCLK_SRCSELECT_SYS_CLK << AUXCLK_SRCSELECT_SHIFT;
/* Set the divisor to 2 */
auxclk &= ~AUXCLK_CLKDIV_MASK;
auxclk |= AUXCLK_CLKDIV_2 << AUXCLK_CLKDIV_SHIFT;
/* Request auxilary clock #3 */
auxclk |= AUXCLK_ENABLE_MASK;
writel(auxclk, &scrm->auxclk3);
altclksrc = readl(&scrm->altclksrc);
/* Activate alternate system clock supplier */
altclksrc &= ~ALTCLKSRC_MODE_MASK;
altclksrc |= ALTCLKSRC_MODE_ACTIVE;
/* enable clocks */
altclksrc |= ALTCLKSRC_ENABLE_INT_MASK | ALTCLKSRC_ENABLE_EXT_MASK;
writel(altclksrc, &scrm->altclksrc);
ret = omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
if (ret < 0)
return ret;
return 0;
}
int ehci_hcd_stop(int index)
{
return omap_ehci_hcd_stop();
}
#endif
/*
* get_board_rev() - get board revision
*/
u32 get_board_rev(void)
{
return 0x20;
}