u-boot/board/compulab/cm_t3517/cm_t3517.c
Jean-Jacques Hiblot d5abcf94c7 ti: boot: Register the MMC controllers in SPL in the same way as in u-boot
To keep a consistent MMC device mapping in SPL and in u-boot, let's
register the MMC controllers the same way in u-boot and in the SPL.
In terms of boot time, it doesn't hurt to register more controllers than
needed because the MMC device is initialized only prior being accessed for
the first time.
Having the same device mapping in SPL and u-boot allows us to use the
environment in SPL whatever the MMC boot device.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2017-03-19 22:17:14 -04:00

240 lines
5.4 KiB
C

/*
* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
*
* Authors: Igor Grinberg <grinberg@compulab.co.il>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <status_led.h>
#include <net.h>
#include <netdev.h>
#include <usb.h>
#include <mmc.h>
#include <linux/compiler.h>
#include <linux/usb/musb.h>
#include <asm/io.h>
#include <asm/arch/mem.h>
#include <asm/arch/am35x_def.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/musb.h>
#include <asm/omap_musb.h>
#include <asm/ehci-omap.h>
#include "../common/common.h"
#include "../common/eeprom.h"
DECLARE_GLOBAL_DATA_PTR;
const omap3_sysinfo sysinfo = {
DDR_DISCRETE,
"CM-T3517 board",
"NAND 128/512M",
};
#ifdef CONFIG_USB_MUSB_AM35X
static struct musb_hdrc_config cm_t3517_musb_config = {
.multipoint = 1,
.dyn_fifo = 1,
.num_eps = 16,
.ram_bits = 12,
};
static struct omap_musb_board_data cm_t3517_musb_board_data = {
.set_phy_power = am35x_musb_phy_power,
.clear_irq = am35x_musb_clear_irq,
.reset = am35x_musb_reset,
};
static struct musb_hdrc_platform_data cm_t3517_musb_pdata = {
#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 = &cm_t3517_musb_config,
.power = 250,
.platform_ops = &am35x_ops,
.board_data = &cm_t3517_musb_board_data,
};
static void cm_t3517_musb_init(void)
{
/*
* Set up USB clock/mode in the DEVCONF2 register.
* USB2.0 PHY reference clock is 13 MHz
*/
clrsetbits_le32(&am35x_scm_general_regs->devconf2,
CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE,
CONF2_REFFREQ_13MHZ | CONF2_SESENDEN |
CONF2_VBDTCTEN | CONF2_DATPOL);
if (musb_register(&cm_t3517_musb_pdata, &cm_t3517_musb_board_data,
(void *)AM35XX_IPSS_USBOTGSS_BASE))
printf("Failed initializing AM35x MUSB!\n");
}
#else
static inline void am3517_evm_musb_init(void) {}
#endif
int board_init(void)
{
gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
#if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_ON);
#endif
cm_t3517_musb_init();
return 0;
}
/*
* Routine: get_board_rev
* Description: read system revision
*/
u32 get_board_rev(void)
{
return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
};
int misc_init_r(void)
{
cl_print_pcb_info();
omap_die_id_display();
return 0;
}
#if defined(CONFIG_GENERIC_MMC)
#define SB_T35_CD_GPIO 144
#define SB_T35_WP_GPIO 59
int board_mmc_init(bd_t *bis)
{
return omap_mmc_init(0, 0, 0, SB_T35_CD_GPIO, SB_T35_WP_GPIO);
}
#endif
#ifdef CONFIG_DRIVER_TI_EMAC
#define CONTROL_EFUSE_EMAC_LSB 0x48002380
#define CONTROL_EFUSE_EMAC_MSB 0x48002384
static int am3517_get_efuse_enetaddr(u8 *enetaddr)
{
u32 lsb = __raw_readl(CONTROL_EFUSE_EMAC_LSB);
u32 msb = __raw_readl(CONTROL_EFUSE_EMAC_MSB);
enetaddr[0] = (u8)((msb >> 16) & 0xff);
enetaddr[1] = (u8)((msb >> 8) & 0xff);
enetaddr[2] = (u8)(msb & 0xff);
enetaddr[3] = (u8)((lsb >> 16) & 0xff);
enetaddr[4] = (u8)((lsb >> 8) & 0xff);
enetaddr[5] = (u8)(lsb & 0xff);
return is_valid_ethaddr(enetaddr);
}
static inline int cm_t3517_init_emac(bd_t *bis)
{
int ret = cpu_eth_init(bis);
if (ret > 0)
return ret;
printf("Failed initializing EMAC! ");
return 0;
}
#else /* !CONFIG_DRIVER_TI_EMAC */
static inline int am3517_get_efuse_enetaddr(u8 *enetaddr) { return 1; }
static inline int cm_t3517_init_emac(bd_t *bis) { return 0; }
#endif /* CONFIG_DRIVER_TI_EMAC */
/*
* Routine: handle_mac_address
* Description: prepare MAC address for on-board Ethernet.
*/
static int cm_t3517_handle_mac_address(void)
{
unsigned char enetaddr[6];
int ret;
ret = eth_getenv_enetaddr("ethaddr", enetaddr);
if (ret)
return 0;
ret = cl_eeprom_read_mac_addr(enetaddr, CONFIG_SYS_I2C_EEPROM_BUS);
if (ret) {
ret = am3517_get_efuse_enetaddr(enetaddr);
if (ret)
return ret;
}
if (!is_valid_ethaddr(enetaddr))
return -1;
return eth_setenv_enetaddr("ethaddr", enetaddr);
}
#define SB_T35_ETH_RST_GPIO 164
/*
* Routine: board_eth_init
* Description: initialize module and base-board Ethernet chips
*/
int board_eth_init(bd_t *bis)
{
int rc = 0, rc1 = 0;
rc1 = cm_t3517_handle_mac_address();
if (rc1)
printf("No MAC address found! ");
rc1 = cm_t3517_init_emac(bis);
if (rc1 > 0)
rc++;
rc1 = cl_omap3_smc911x_init(0, 4, CONFIG_SMC911X_BASE,
NULL, SB_T35_ETH_RST_GPIO);
if (rc1 > 0)
rc++;
return rc;
}
#ifdef CONFIG_USB_EHCI_OMAP
static struct omap_usbhs_board_data cm_t3517_usbhs_bdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
};
#define CM_T3517_USB_HUB_RESET_GPIO 152
#define SB_T35_USB_HUB_RESET_GPIO 98
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **hccr, struct ehci_hcor **hcor)
{
cl_usb_hub_init(CM_T3517_USB_HUB_RESET_GPIO, "cm-t3517 hub rst");
cl_usb_hub_init(SB_T35_USB_HUB_RESET_GPIO, "sb-t35 hub rst");
return omap_ehci_hcd_init(index, &cm_t3517_usbhs_bdata, hccr, hcor);
}
int ehci_hcd_stop(void)
{
cl_usb_hub_deinit(CM_T3517_USB_HUB_RESET_GPIO);
cl_usb_hub_deinit(SB_T35_USB_HUB_RESET_GPIO);
return omap_ehci_hcd_stop();
}
#endif /* CONFIG_USB_EHCI_OMAP */