blob: c23fd670096db2f4b5e2e209dc10dc342f50f975 [file] [log] [blame]
/*
* (C) Copyright 2010
* Texas Instruments Incorporated, <www.ti.com>
* Steve Sakoman <steve@sakoman.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/clocks.h>
#include <asm/arch/gpio.h>
#include <asm/gpio.h>
#include "panda_mux_data.h"
#ifdef CONFIG_USB_EHCI
#include <usb.h>
#include <asm/arch/ehci.h>
#include <asm/ehci-omap.h>
#endif
#define PANDA_ULPI_PHY_TYPE_GPIO 182
DECLARE_GLOBAL_DATA_PTR;
const struct omap_sysinfo sysinfo = {
"Board: OMAP4 Panda\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_PANDA;
gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
return 0;
}
/*
* Panda has a usb nic with no ethernet rom so generate a macaddr
* from the SOC die-id and set the usbethaddr env var to that
* value.
*/
int board_eth_init(bd_t *bis)
{
u8 macaddr[6];
char usbethaddr[20];
/*
* NB: The 1 here has been found to generate an address
* consistent with the kernel.
*/
omap4_die_id_to_ethernet_mac(macaddr, 1);
sprintf (usbethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
macaddr[0], macaddr[1],
macaddr[2], macaddr[3],
macaddr[4], macaddr[5]) ;
setenv ("usbethaddr", usbethaddr);
return 0;
}
/**
* is_panda_es_rev_b3() - Detect if we are running on rev B3 of panda board ES
*
*
* Detect if we are running on B3 version of ES panda board,
* This can be done by reading the level of GPIO 171 and checking the
* processor revisions.
* GPIO171: 1 => Panda ES Rev B3
*
* Return : return 1 if Panda ES Rev B3 , else return 0
*/
u8 is_panda_es_rev_b3(void)
{
return 1;
}
#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
/*
* emif_get_reg_dump() - emif_get_reg_dump strong function
*
* @emif_nr - emif base
* @regs - reg dump of timing values
*
* Strong function to override emif_get_reg_dump weak function in sdram_elpida.c
*/
void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
{
u32 omap4_rev = omap_revision();
/* Same devices and geometry on both EMIFs */
if (omap4_rev == OMAP4430_ES1_0)
*regs = &emif_regs_elpida_380_mhz_1cs;
else if (omap4_rev == OMAP4430_ES2_0)
*regs = &emif_regs_elpida_200_mhz_2cs;
else if (omap4_rev == OMAP4430_ES2_3)
*regs = &emif_regs_elpida_400_mhz_1cs;
else if (omap4_rev < OMAP4470_ES1_0) {
if(is_panda_es_rev_b3())
*regs = &emif_regs_elpida_400_mhz_1cs;
else
*regs = &emif_regs_elpida_400_mhz_2cs;
}
else
*regs = &emif_regs_elpida_400_mhz_1cs;
}
#endif
/**
* @brief misc_init_r - Configure Panda board specific configurations
* such as power configurations, ethernet initialization as phase2 of
* boot sequence
*
* @return 0
*/
int misc_init_r(void)
{
int phy_type;
u32 auxclk, altclksrc;
/* EHCI is not supported on ES1.0 */
if (omap_revision() == OMAP4430_ES1_0)
return 0;
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
setenv("board_name", strcat(CONFIG_SYS_BOARD, "-moto"));
#endif
gpio_direction_input(PANDA_ULPI_PHY_TYPE_GPIO);
phy_type = gpio_get_value(PANDA_ULPI_PHY_TYPE_GPIO);
if (phy_type == 1) {
/* ULPI PHY supplied by auxclk3 derived from sys_clk */
debug("ULPI PHY supplied by auxclk3\n");
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);
} else {
/* ULPI PHY supplied by auxclk1 derived from PER dpll */
debug("ULPI PHY supplied by auxclk1\n");
auxclk = readl(&scrm->auxclk1);
/* Select per DPLL */
auxclk &= ~AUXCLK_SRCSELECT_MASK;
auxclk |= AUXCLK_SRCSELECT_PER_DPLL << AUXCLK_SRCSELECT_SHIFT;
/* Set the divisor to 16 */
auxclk &= ~AUXCLK_CLKDIV_MASK;
auxclk |= AUXCLK_CLKDIV_16 << AUXCLK_CLKDIV_SHIFT;
/* Request auxilary clock #3 */
auxclk |= AUXCLK_ENABLE_MASK;
writel(auxclk, &scrm->auxclk1);
}
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);
return 0;
}
void set_muxconf_regs_essential(void)
{
do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
sizeof(core_padconf_array_essential) /
sizeof(struct pad_conf_entry));
do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
sizeof(wkup_padconf_array_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() >= OMAP4460_ES1_0)
do_set_mux(CONTROL_PADCONF_WKUP,
wkup_padconf_array_essential_4460,
sizeof(wkup_padconf_array_essential_4460) /
sizeof(struct pad_conf_entry));
}
void set_muxconf_regs_non_essential(void)
{
do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_non_essential,
sizeof(core_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() < OMAP4460_ES1_0)
do_set_mux(CONTROL_PADCONF_CORE,
core_padconf_array_non_essential_4430,
sizeof(core_padconf_array_non_essential_4430) /
sizeof(struct pad_conf_entry));
else
do_set_mux(CONTROL_PADCONF_CORE,
core_padconf_array_non_essential_4460,
sizeof(core_padconf_array_non_essential_4460) /
sizeof(struct pad_conf_entry));
do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_non_essential,
sizeof(wkup_padconf_array_non_essential) /
sizeof(struct pad_conf_entry));
if (omap_revision() < OMAP4460_ES1_0)
do_set_mux(CONTROL_PADCONF_WKUP,
wkup_padconf_array_non_essential_4430,
sizeof(wkup_padconf_array_non_essential_4430) /
sizeof(struct pad_conf_entry));
}
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_GENERIC_MMC)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0);
return 0;
}
#endif
#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, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
int ret;
unsigned int utmi_clk;
/* Now we can enable our port clocks */
utmi_clk = readl((void *)CM_L3INIT_HSUSBHOST_CLKCTRL);
utmi_clk |= HSUSBHOST_CLKCTRL_CLKSEL_UTMI_P1_MASK;
sr32((void *)CM_L3INIT_HSUSBHOST_CLKCTRL, 0, 32, utmi_clk);
ret = omap_ehci_hcd_init(&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;
}