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/*
* (C) Copyright 2011 HALE electronic <helmut.raiger@hale.at>
* (C) Copyright 2009 Magnus Lilja <lilja.magnus@gmail.com>
* (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* 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 <netdev.h>
#include <command.h>
#include <power/pmic.h>
#include <fsl_pmic.h>
#include <mc13783.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <asm/io.h>
#include <errno.h>
DECLARE_GLOBAL_DATA_PTR;
#define BOARD_STRING "Board: HALE TT-01"
/* Clock configuration */
#define CCM_CCMR_SETUP 0x074B0BF5
static void board_setup_clocks(void)
{
struct clock_control_regs *ccm = (struct clock_control_regs *) CCM_BASE;
volatile int wait = 0x10000;
writel(CCM_CCMR_SETUP, &ccm->ccmr);
while (wait--)
;
writel(CCM_CCMR_SETUP | CCMR_MPE, &ccm->ccmr);
writel((CCM_CCMR_SETUP | CCMR_MPE) & ~CCMR_MDS, &ccm->ccmr);
/* Set up clock to 532MHz */
writel(PDR0_CSI_PODF(0x3f) | PDR0_CSI_PRDF(7) | PDR0_PER_PODF(7) |
PDR0_HSP_PODF(3) | PDR0_NFC_PODF(5) |
PDR0_IPG_PODF(1) | PDR0_MAX_PODF(3) |
PDR0_MCU_PODF(0), &ccm->pdr0);
writel(PLL_PD(0) | PLL_MFD(51) | PLL_MFI(10) | PLL_MFN(12),
&ccm->mpctl);
writel(PLL_PD(1) | PLL_MFD(4) | PLL_MFI(12) | PLL_MFN(1),
&ccm->spctl);
}
/* DRAM configuration */
#define ESDMISC_MDDR_SETUP 0x00000004
#define ESDMISC_MDDR_RESET_DL 0x0000000c
/*
* decoding magic 0x6ac73a = 0b 0110 1010 1100 0111 0011 1010 below:
* tXP = 11, tWTR = 0, tRP = 10, tMRD = 10
* tWR = 1, tRAS = 100, tRRD = 01, tCAS = 11
* tRCD = 011, tRC = 010
* note: all but tWTR (1), tRC (111) are reset defaults,
* the same values work in the jtag configuration
*
* Bluetechnix setup has 0x75e73a (for 128MB) =
* 0b 0111 0101 1110 0111 0011 1010
* tXP = 11, tWTR = 1, tRP = 01, tMRD = 01
* tWR = 1, tRAS = 110, tRRD = 01, tCAS = 11
* tRCD = 011, tRC = 010
*/
#define ESDCFG0_MDDR_SETUP 0x006ac73a
#define ESDCTL_ROW_COL (ESDCTL_SDE | ESDCTL_ROW(2) | ESDCTL_COL(2))
#define ESDCTL_SETTINGS (ESDCTL_ROW_COL | ESDCTL_SREFR(3) | \
ESDCTL_DSIZ(2) | ESDCTL_BL(1))
#define ESDCTL_PRECHARGE (ESDCTL_ROW_COL | ESDCTL_CMD_PRECHARGE)
#define ESDCTL_AUTOREFRESH (ESDCTL_ROW_COL | ESDCTL_CMD_AUTOREFRESH)
#define ESDCTL_LOADMODEREG (ESDCTL_ROW_COL | ESDCTL_CMD_LOADMODEREG)
#define ESDCTL_RW ESDCTL_SETTINGS
static void board_setup_sdram(void)
{
u32 *pad;
struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
/*
* setup pad control for the controller pins
* no loopback, no pull, no keeper, no open drain,
* standard input, standard drive, slow slew rate
*/
for (pad = (u32 *) IOMUXC_SW_PAD_CTL_SDCKE1_SDCLK_SDCLK_B;
pad <= (u32 *) IOMUXC_SW_PAD_CTL_VPG0_VPG1_A0; pad++)
*pad = 0;
/* set up MX31 DDR Memory Controller */
writel(ESDMISC_MDDR_SETUP, &esdc->misc);
writel(ESDCFG0_MDDR_SETUP, &esdc->cfg0);
/* perform DDR init sequence for CSD0 */
writel(ESDCTL_PRECHARGE, &esdc->ctl0);
writel(0x12344321, CSD0_BASE+0x0f00);
writel(ESDCTL_AUTOREFRESH, &esdc->ctl0);
writel(0x12344321, CSD0_BASE);
writel(0x12344321, CSD0_BASE);
writel(ESDCTL_LOADMODEREG, &esdc->ctl0);
writeb(0xda, CSD0_BASE+0x33);
writeb(0xff, CSD0_BASE+0x1000000);
writel(ESDCTL_RW, &esdc->ctl0);
writel(0xDEADBEEF, CSD0_BASE);
writel(ESDMISC_MDDR_RESET_DL, &esdc->misc);
}
static void tt01_spi3_hw_init(void)
{
/* CSPI3 */
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI3_MISO, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI3_MOSI, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI3_SCLK, MUX_CTL_FUNC));
/* CSPI3, SS0 = Atlas */
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI2_SS0, MUX_CTL_ALT1));
/* start CSPI3 clock (3 = always on except if PLL off) */
setbits_le32(CCM_CGR0, 3 << 16);
}
int dram_init(void)
{
/* dram_init must store complete ramsize in gd->ram_size */
gd->ram_size = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE,
PHYS_SDRAM_1_SIZE);
return 0;
}
int board_early_init_f(void)
{
/* CS4: FPGA incl. network controller */
struct mxc_weimcs cs4 = {
/* sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */
CSCR_U(0, 0, 0, 0, 0, 0, 0, 0, 3, 28, 1, 7, 6),
/* oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */
CSCR_L(4, 4, 4, 10, 4, 0, 5, 4, 0, 0, 0, 1),
/* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/
CSCR_A(4, 4, 4, 4, 0, 1, 4, 3, 0, 0, 0, 0, 1, 0)
};
/* this seems essential, won't start without, but why? */
writel(IPU_CONF_DI_EN, (u32 *) IPU_CONF);
board_setup_clocks();
board_setup_sdram();
mxc_setup_weimcs(4, &cs4);
/* Setup UART2 and SPI3 pins */
mx31_uart2_hw_init();
tt01_spi3_hw_init();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
int board_late_init(void)
{
#ifdef CONFIG_HW_WATCHDOG
mxc_hw_watchdog_enable();
#endif
return 0;
}
int checkboard(void)
{
puts(BOARD_STRING "\n");
return 0;
}
#ifdef CONFIG_MXC_MMC
int board_mmc_init(bd_t *bis)
{
u32 val;
struct pmic *p;
int ret;
/*
* this is the first driver to use the pmic, so call
* pmic_init() here. board_late_init() is too late for
* the MMC driver.
*/
ret = pmic_init(I2C_PMIC);
if (ret)
return ret;
p = pmic_get("FSL_PMIC");
if (!p)
return -ENODEV;
/* configure pins for SDHC1 only */
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_CLK, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_CMD, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA0, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA1, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA2, MUX_CTL_FUNC));
mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA3, MUX_CTL_FUNC));
/* turn on power V_MMC1 */
if (pmic_reg_read(p, REG_MODE_1, &val) < 0)
pmic_reg_write(p, REG_MODE_1, val | VMMC1EN);
return mxc_mmc_init(bis);
}
#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_CONSOLE_EXTRA_INFO
void video_get_info_str(int line_number, char *info)
{
u32 srev = get_cpu_rev();
switch (line_number) {
case 2:
sprintf(info, " CPU : Freescale i.MX31 rev %d.%d%s at %d MHz",
(srev & 0xF0) >> 4, (srev & 0x0F),
((srev & 0x8000) ? " unknown" : ""),
mxc_get_clock(MXC_ARM_CLK) / 1000000);
break;
case 3:
strcpy(info, " " BOARD_STRING);
break;
default:
info[0] = 0;
}
}
#endif
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