upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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243 lines
6.3 KiB
243 lines
6.3 KiB
/*
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* (C) Copyright 2011 HALE electronic <helmut.raiger@hale.at>
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* (C) Copyright 2009 Magnus Lilja <lilja.magnus@gmail.com>
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* (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <netdev.h>
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#include <command.h>
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#include <power/pmic.h>
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#include <fsl_pmic.h>
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#include <mc13783.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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#include <errno.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define BOARD_STRING "Board: HALE TT-01"
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/* Clock configuration */
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#define CCM_CCMR_SETUP 0x074B0BF5
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static void board_setup_clocks(void)
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{
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struct clock_control_regs *ccm = (struct clock_control_regs *) CCM_BASE;
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volatile int wait = 0x10000;
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writel(CCM_CCMR_SETUP, &ccm->ccmr);
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while (wait--)
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;
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writel(CCM_CCMR_SETUP | CCMR_MPE, &ccm->ccmr);
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writel((CCM_CCMR_SETUP | CCMR_MPE) & ~CCMR_MDS, &ccm->ccmr);
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/* Set up clock to 532MHz */
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writel(PDR0_CSI_PODF(0x3f) | PDR0_CSI_PRDF(7) | PDR0_PER_PODF(7) |
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PDR0_HSP_PODF(3) | PDR0_NFC_PODF(5) |
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PDR0_IPG_PODF(1) | PDR0_MAX_PODF(3) |
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PDR0_MCU_PODF(0), &ccm->pdr0);
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writel(PLL_PD(0) | PLL_MFD(51) | PLL_MFI(10) | PLL_MFN(12),
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&ccm->mpctl);
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writel(PLL_PD(1) | PLL_MFD(4) | PLL_MFI(12) | PLL_MFN(1),
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&ccm->spctl);
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}
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/* DRAM configuration */
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#define ESDMISC_MDDR_SETUP 0x00000004
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#define ESDMISC_MDDR_RESET_DL 0x0000000c
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/*
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* decoding magic 0x6ac73a = 0b 0110 1010 1100 0111 0011 1010 below:
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* tXP = 11, tWTR = 0, tRP = 10, tMRD = 10
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* tWR = 1, tRAS = 100, tRRD = 01, tCAS = 11
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* tRCD = 011, tRC = 010
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* note: all but tWTR (1), tRC (111) are reset defaults,
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* the same values work in the jtag configuration
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*
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* Bluetechnix setup has 0x75e73a (for 128MB) =
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* 0b 0111 0101 1110 0111 0011 1010
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* tXP = 11, tWTR = 1, tRP = 01, tMRD = 01
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* tWR = 1, tRAS = 110, tRRD = 01, tCAS = 11
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* tRCD = 011, tRC = 010
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*/
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#define ESDCFG0_MDDR_SETUP 0x006ac73a
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#define ESDCTL_ROW_COL (ESDCTL_SDE | ESDCTL_ROW(2) | ESDCTL_COL(2))
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#define ESDCTL_SETTINGS (ESDCTL_ROW_COL | ESDCTL_SREFR(3) | \
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ESDCTL_DSIZ(2) | ESDCTL_BL(1))
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#define ESDCTL_PRECHARGE (ESDCTL_ROW_COL | ESDCTL_CMD_PRECHARGE)
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#define ESDCTL_AUTOREFRESH (ESDCTL_ROW_COL | ESDCTL_CMD_AUTOREFRESH)
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#define ESDCTL_LOADMODEREG (ESDCTL_ROW_COL | ESDCTL_CMD_LOADMODEREG)
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#define ESDCTL_RW ESDCTL_SETTINGS
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static void board_setup_sdram(void)
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{
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u32 *pad;
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struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
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/*
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* setup pad control for the controller pins
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* no loopback, no pull, no keeper, no open drain,
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* standard input, standard drive, slow slew rate
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*/
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for (pad = (u32 *) IOMUXC_SW_PAD_CTL_SDCKE1_SDCLK_SDCLK_B;
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pad <= (u32 *) IOMUXC_SW_PAD_CTL_VPG0_VPG1_A0; pad++)
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*pad = 0;
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/* set up MX31 DDR Memory Controller */
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writel(ESDMISC_MDDR_SETUP, &esdc->misc);
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writel(ESDCFG0_MDDR_SETUP, &esdc->cfg0);
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/* perform DDR init sequence for CSD0 */
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writel(ESDCTL_PRECHARGE, &esdc->ctl0);
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writel(0x12344321, CSD0_BASE+0x0f00);
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writel(ESDCTL_AUTOREFRESH, &esdc->ctl0);
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writel(0x12344321, CSD0_BASE);
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writel(0x12344321, CSD0_BASE);
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writel(ESDCTL_LOADMODEREG, &esdc->ctl0);
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writeb(0xda, CSD0_BASE+0x33);
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writeb(0xff, CSD0_BASE+0x1000000);
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writel(ESDCTL_RW, &esdc->ctl0);
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writel(0xDEADBEEF, CSD0_BASE);
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writel(ESDMISC_MDDR_RESET_DL, &esdc->misc);
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}
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static void tt01_spi3_hw_init(void)
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{
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/* CSPI3 */
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI3_MISO, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI3_MOSI, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI3_SCLK, MUX_CTL_FUNC));
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/* CSPI3, SS0 = Atlas */
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_CSPI2_SS0, MUX_CTL_ALT1));
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/* start CSPI3 clock (3 = always on except if PLL off) */
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setbits_le32(CCM_CGR0, 3 << 16);
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}
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int dram_init(void)
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{
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/* dram_init must store complete ramsize in gd->ram_size */
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gd->ram_size = get_ram_size((long *) CONFIG_SYS_SDRAM_BASE,
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PHYS_SDRAM_1_SIZE);
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return 0;
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}
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int board_early_init_f(void)
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{
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/* CS4: FPGA incl. network controller */
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struct mxc_weimcs cs4 = {
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/* sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */
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CSCR_U(0, 0, 0, 0, 0, 0, 0, 0, 3, 28, 1, 7, 6),
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/* oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */
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CSCR_L(4, 4, 4, 10, 4, 0, 5, 4, 0, 0, 0, 1),
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/* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/
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CSCR_A(4, 4, 4, 4, 0, 1, 4, 3, 0, 0, 0, 0, 1, 0)
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};
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/* this seems essential, won't start without, but why? */
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writel(IPU_CONF_DI_EN, (u32 *) IPU_CONF);
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board_setup_clocks();
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board_setup_sdram();
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mxc_setup_weimcs(4, &cs4);
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/* Setup UART2 and SPI3 pins */
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mx31_uart2_hw_init();
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tt01_spi3_hw_init();
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return 0;
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}
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int board_init(void)
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{
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/* address of boot parameters */
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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return 0;
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}
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int board_late_init(void)
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{
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#ifdef CONFIG_HW_WATCHDOG
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hw_watchdog_init();
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#endif
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return 0;
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}
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int checkboard(void)
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{
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puts(BOARD_STRING "\n");
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return 0;
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}
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#ifdef CONFIG_MXC_MMC
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int board_mmc_init(bd_t *bis)
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{
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u32 val;
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struct pmic *p;
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int ret;
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/*
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* this is the first driver to use the pmic, so call
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* pmic_init() here. board_late_init() is too late for
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* the MMC driver.
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*/
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ret = pmic_init(I2C_PMIC);
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if (ret)
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return ret;
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p = pmic_get("FSL_PMIC");
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if (!p)
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return -ENODEV;
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/* configure pins for SDHC1 only */
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_CLK, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_CMD, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA0, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA1, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA2, MUX_CTL_FUNC));
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mx31_gpio_mux(IOMUX_MODE(MUX_CTL_SD1_DATA3, MUX_CTL_FUNC));
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/* turn on power V_MMC1 */
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if (pmic_reg_read(p, REG_MODE_1, &val) < 0)
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pmic_reg_write(p, REG_MODE_1, val | VMMC1EN);
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return mxc_mmc_init(bis);
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}
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#endif
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int board_eth_init(bd_t *bis)
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{
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int rc = 0;
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#ifdef CONFIG_SMC911X
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rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
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#endif
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return rc;
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}
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#ifdef CONFIG_CONSOLE_EXTRA_INFO
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void video_get_info_str(int line_number, char *info)
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{
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u32 srev = get_cpu_rev();
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switch (line_number) {
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case 2:
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sprintf(info, " CPU : Freescale i.MX31 rev %d.%d%s at %d MHz",
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(srev & 0xF0) >> 4, (srev & 0x0F),
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((srev & 0x8000) ? " unknown" : ""),
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mxc_get_clock(MXC_ARM_CLK) / 1000000);
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break;
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case 3:
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strcpy(info, " " BOARD_STRING);
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break;
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default:
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info[0] = 0;
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}
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}
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#endif
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