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/*
* Copyright (C) 2012, Stefano Babic <sbabic@denx.de>
*
* Based on flea3.c and mx35pdk.c
*
* 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/io.h>
#include <asm/errno.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/mx35_pins.h>
#include <asm/arch/iomux.h>
#include <i2c.h>
#include <power/pmic.h>
#include <fsl_pmic.h>
#include <mc13892.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <linux/types.h>
#include <asm/gpio.h>
#include <asm/arch/sys_proto.h>
#include <netdev.h>
#include <spl.h>
#define CCM_CCMR_CONFIG 0x003F4208
#define ESDCTL_DDR2_CONFIG 0x007FFC3F
/* For MMC */
#define GPIO_MMC_CD 7
#define GPIO_MMC_WP 8
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
PHYS_SDRAM_1_SIZE);
return 0;
}
static void board_setup_sdram(void)
{
struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
/* Initialize with default values both CSD0/1 */
writel(0x2000, &esdc->esdctl0);
writel(0x2000, &esdc->esdctl1);
mx3_setup_sdram_bank(CSD0_BASE_ADDR, ESDCTL_DDR2_CONFIG,
13, 10, 2, 0x8080);
}
static void setup_iomux_fec(void)
{
/* setup pins for FEC */
mxc_request_iomux(MX35_PIN_FEC_TX_CLK, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RX_CLK, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RX_DV, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_COL, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RDATA0, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_TDATA0, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_TX_EN, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_MDC, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_MDIO, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_TX_ERR, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RX_ERR, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_CRS, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RDATA1, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_TDATA1, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RDATA2, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_TDATA2, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_RDATA3, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_FEC_TDATA3, MUX_CONFIG_FUNC);
}
int woodburn_init(void)
{
struct ccm_regs *ccm =
(struct ccm_regs *)IMX_CCM_BASE;
/* initialize PLL and clock configuration */
writel(CCM_CCMR_CONFIG, &ccm->ccmr);
/* Set-up RAM */
board_setup_sdram();
/* enable clocks */
writel(readl(&ccm->cgr0) |
MXC_CCM_CGR0_EMI_MASK |
MXC_CCM_CGR0_EDIO_MASK |
MXC_CCM_CGR0_EPIT1_MASK,
&ccm->cgr0);
writel(readl(&ccm->cgr1) |
MXC_CCM_CGR1_FEC_MASK |
MXC_CCM_CGR1_GPIO1_MASK |
MXC_CCM_CGR1_GPIO2_MASK |
MXC_CCM_CGR1_GPIO3_MASK |
MXC_CCM_CGR1_I2C1_MASK |
MXC_CCM_CGR1_I2C2_MASK |
MXC_CCM_CGR1_I2C3_MASK,
&ccm->cgr1);
/* Set-up NAND */
__raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
/* Set pinmux for the required peripherals */
setup_iomux_fec();
/* setup GPIO1_4 FEC_ENABLE signal */
mxc_request_iomux(MX35_PIN_SCKR, MUX_CONFIG_ALT5);
gpio_direction_output(4, 1);
mxc_request_iomux(MX35_PIN_HCKT, MUX_CONFIG_ALT5);
gpio_direction_output(9, 1);
return 0;
}
#if defined(CONFIG_SPL_BUILD)
void board_init_f(ulong dummy)
{
/* Set the stack pointer. */
asm volatile("mov sp, %0\n" : : "r"(CONFIG_SPL_STACK));
/* Initialize MUX and SDRAM */
woodburn_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
/* Set global data pointer. */
gd = &gdata;
preloader_console_init();
timer_init();
board_init_r(NULL, 0);
}
void spl_board_init(void)
{
}
#endif
/* Booting from NOR in external mode */
int board_early_init_f(void)
{
return woodburn_init();
}
int board_init(void)
{
struct pmic *p;
u32 val;
int ret;
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
ret = pmic_init(I2C_PMIC);
if (ret)
return ret;
p = pmic_get("FSL_PMIC");
/*
* Set switchers in Auto in NORMAL mode & STANDBY mode
* Setup the switcher mode for SW1 & SW2
*/
pmic_reg_read(p, REG_SW_4, &val);
val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
(SWMODE_MASK << SWMODE2_SHIFT)));
val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
(SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
/* Set SWILIMB */
val |= (1 << 22);
pmic_reg_write(p, REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
pmic_reg_read(p, REG_SW_5, &val);
val &= ~((SWMODE_MASK << SWMODE4_SHIFT) |
(SWMODE_MASK << SWMODE3_SHIFT));
val |= (SWMODE_AUTO_AUTO << SWMODE4_SHIFT) |
(SWMODE_AUTO_AUTO << SWMODE3_SHIFT);
pmic_reg_write(p, REG_SW_5, val);
/* Set VGEN1 to 3.15V */
pmic_reg_read(p, REG_SETTING_0, &val);
val &= ~(VGEN1_MASK);
val |= VGEN1_3_15;
pmic_reg_write(p, REG_SETTING_0, val);
pmic_reg_read(p, REG_MODE_0, &val);
val |= VGEN1EN;
pmic_reg_write(p, REG_MODE_0, val);
udelay(2000);
return 0;
}
#if defined(CONFIG_FSL_ESDHC)
struct fsl_esdhc_cfg esdhc_cfg = {MMC_SDHC1_BASE_ADDR};
int board_mmc_init(bd_t *bis)
{
/* configure pins for SDHC1 only */
mxc_request_iomux(MX35_PIN_SD1_CMD, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_SD1_CLK, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_SD1_DATA0, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_SD1_DATA1, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_SD1_DATA2, MUX_CONFIG_FUNC);
mxc_request_iomux(MX35_PIN_SD1_DATA3, MUX_CONFIG_FUNC);
/* MMC Card Detect on GPIO1_7 */
mxc_request_iomux(MX35_PIN_SCKT, MUX_CONFIG_ALT5);
mxc_iomux_set_input(MUX_IN_GPIO1_IN_7, 0x1);
gpio_direction_input(GPIO_MMC_CD);
/* MMC Write Protection on GPIO1_8 */
mxc_request_iomux(MX35_PIN_FST, MUX_CONFIG_ALT5);
mxc_iomux_set_input(MUX_IN_GPIO1_IN_8, 0x1);
gpio_direction_input(GPIO_MMC_WP);
esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC1_CLK);
return fsl_esdhc_initialize(bis, &esdhc_cfg);
}
int board_mmc_getcd(struct mmc *mmc)
{
return !gpio_get_value(GPIO_MMC_CD);
}
#endif
u32 get_board_rev(void)
{
int rev = 0;
return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
}
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