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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402 lines
11 KiB
402 lines
11 KiB
/*
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* DENX M53 module
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*
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* Copyright (C) 2012-2013 Marek Vasut <marex@denx.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 <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/iomux-mx53.h>
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#include <asm/imx-common/mx5_video.h>
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#include <asm/spl.h>
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#include <asm/errno.h>
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#include <netdev.h>
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#include <i2c.h>
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#include <mmc.h>
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#include <spl.h>
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#include <fsl_esdhc.h>
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#include <asm/gpio.h>
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#include <usb/ehci-ci.h>
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#include <linux/fb.h>
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#include <ipu_pixfmt.h>
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/* Special MXCFB sync flags are here. */
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#include "../drivers/video/mxcfb.h"
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DECLARE_GLOBAL_DATA_PTR;
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static uint32_t mx53_dram_size[2];
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phys_size_t get_effective_memsize(void)
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{
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/*
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* WARNING: We must override get_effective_memsize() function here
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* to report only the size of the first DRAM bank. This is to make
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* U-Boot relocator place U-Boot into valid memory, that is, at the
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* end of the first DRAM bank. If we did not override this function
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* like so, U-Boot would be placed at the address of the first DRAM
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* bank + total DRAM size - sizeof(uboot), which in the setup where
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* each DRAM bank contains 512MiB of DRAM would result in placing
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* U-Boot into invalid memory area close to the end of the first
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* DRAM bank.
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*/
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return mx53_dram_size[0];
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}
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int dram_init(void)
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{
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mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
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mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
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gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
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return 0;
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}
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void dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = mx53_dram_size[0];
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gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
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gd->bd->bi_dram[1].size = mx53_dram_size[1];
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}
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static void setup_iomux_uart(void)
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{
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static const iomux_v3_cfg_t uart_pads[] = {
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MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
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MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
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};
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imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
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}
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#ifdef CONFIG_USB_EHCI_MX5
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int board_ehci_hcd_init(int port)
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{
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if (port == 0) {
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/* USB OTG PWRON */
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imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4,
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PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
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gpio_direction_output(IMX_GPIO_NR(1, 4), 0);
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/* USB OTG Over Current */
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imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13);
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} else if (port == 1) {
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/* USB Host PWRON */
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imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2,
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PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
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gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
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/* USB Host Over Current */
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imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC);
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}
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return 0;
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}
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#endif
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static void setup_iomux_fec(void)
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{
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static const iomux_v3_cfg_t fec_pads[] = {
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/* MDIO pads */
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NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
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PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
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NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
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/* FEC 0 pads */
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NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
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/* FEC 1 pads */
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NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
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};
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imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
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}
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#ifdef CONFIG_FSL_ESDHC
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struct fsl_esdhc_cfg esdhc_cfg = {
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MMC_SDHC1_BASE_ADDR,
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
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gpio_direction_input(IMX_GPIO_NR(1, 1));
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return !gpio_get_value(IMX_GPIO_NR(1, 1));
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}
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#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
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PAD_CTL_PUS_100K_UP)
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#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
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PAD_CTL_DSE_HIGH)
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int board_mmc_init(bd_t *bis)
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{
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static const iomux_v3_cfg_t sd1_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
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MX53_PAD_EIM_DA13__GPIO3_13,
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MX53_PAD_EIM_EB3__GPIO2_31, /* SD power */
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};
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esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
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imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
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/* GPIO 2_31 is SD power */
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gpio_direction_output(IMX_GPIO_NR(2, 31), 0);
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return fsl_esdhc_initialize(bis, &esdhc_cfg);
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}
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#endif
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#ifdef CONFIG_VIDEO
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static struct fb_videomode const ampire_wvga = {
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.name = "Ampire",
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.refresh = 60,
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.xres = 800,
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.yres = 480,
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.pixclock = 29851, /* picosecond (33.5 MHz) */
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.left_margin = 89,
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.right_margin = 164,
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.upper_margin = 23,
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.lower_margin = 10,
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.hsync_len = 10,
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.vsync_len = 10,
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.sync = FB_SYNC_CLK_LAT_FALL,
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};
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int board_video_skip(void)
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{
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int ret;
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ret = ipuv3_fb_init(&ire_wvga, 1, IPU_PIX_FMT_RGB666);
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if (ret)
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printf("Ampire LCD cannot be configured: %d\n", ret);
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return ret;
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}
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#endif
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#define I2C_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
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static void setup_iomux_i2c(void)
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{
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static const iomux_v3_cfg_t i2c_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
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};
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imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
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}
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static void setup_iomux_video(void)
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{
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static const iomux_v3_cfg_t lcd_pads[] = {
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MX53_PAD_EIM_DA9__IPU_DISP1_DAT_0,
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MX53_PAD_EIM_DA8__IPU_DISP1_DAT_1,
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MX53_PAD_EIM_DA7__IPU_DISP1_DAT_2,
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MX53_PAD_EIM_DA6__IPU_DISP1_DAT_3,
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MX53_PAD_EIM_DA5__IPU_DISP1_DAT_4,
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MX53_PAD_EIM_DA4__IPU_DISP1_DAT_5,
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MX53_PAD_EIM_DA3__IPU_DISP1_DAT_6,
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MX53_PAD_EIM_DA2__IPU_DISP1_DAT_7,
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MX53_PAD_EIM_DA1__IPU_DISP1_DAT_8,
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MX53_PAD_EIM_DA0__IPU_DISP1_DAT_9,
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MX53_PAD_EIM_EB1__IPU_DISP1_DAT_10,
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MX53_PAD_EIM_EB0__IPU_DISP1_DAT_11,
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MX53_PAD_EIM_A17__IPU_DISP1_DAT_12,
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MX53_PAD_EIM_A18__IPU_DISP1_DAT_13,
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MX53_PAD_EIM_A19__IPU_DISP1_DAT_14,
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MX53_PAD_EIM_A20__IPU_DISP1_DAT_15,
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MX53_PAD_EIM_A21__IPU_DISP1_DAT_16,
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MX53_PAD_EIM_A22__IPU_DISP1_DAT_17,
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MX53_PAD_EIM_A23__IPU_DISP1_DAT_18,
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MX53_PAD_EIM_A24__IPU_DISP1_DAT_19,
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MX53_PAD_EIM_D31__IPU_DISP1_DAT_20,
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MX53_PAD_EIM_D30__IPU_DISP1_DAT_21,
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MX53_PAD_EIM_D26__IPU_DISP1_DAT_22,
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MX53_PAD_EIM_D27__IPU_DISP1_DAT_23,
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MX53_PAD_EIM_A16__IPU_DI1_DISP_CLK,
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MX53_PAD_EIM_DA13__IPU_DI1_D0_CS,
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MX53_PAD_EIM_DA14__IPU_DI1_D1_CS,
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MX53_PAD_EIM_DA15__IPU_DI1_PIN1,
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MX53_PAD_EIM_DA11__IPU_DI1_PIN2,
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MX53_PAD_EIM_DA12__IPU_DI1_PIN3,
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MX53_PAD_EIM_A25__IPU_DI1_PIN12,
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MX53_PAD_EIM_DA10__IPU_DI1_PIN15,
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};
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imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
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}
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static void setup_iomux_nand(void)
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{
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static const iomux_v3_cfg_t nand_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
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PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
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PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
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PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
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PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
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PAD_CTL_PUS_100K_UP),
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NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
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PAD_CTL_PUS_100K_UP),
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NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
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PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
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};
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imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
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}
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static void m53_set_clock(void)
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{
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int ret;
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const uint32_t ref_clk = MXC_HCLK;
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const uint32_t dramclk = 400;
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uint32_t cpuclk;
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imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
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PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
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gpio_direction_input(IMX_GPIO_NR(4, 0));
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/* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
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cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
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ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
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if (ret)
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printf("CPU: Switch CPU clock to %dMHz failed\n", cpuclk);
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ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
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if (ret) {
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printf("CPU: Switch peripheral clock to %dMHz failed\n",
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dramclk);
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}
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ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
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if (ret)
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printf("CPU: Switch DDR clock to %dMHz failed\n", dramclk);
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}
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static void m53_set_nand(void)
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{
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u32 i;
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/* NAND flash is muxed on ATA pins */
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setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
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/* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
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for (i = 0x4; i < 0x94; i += 0x18) {
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clrbits_le32(WEIM_BASE_ADDR + i,
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WEIM_GCR2_MUX16_BYP_GRANT_MASK);
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}
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mxc_set_clock(0, 33, MXC_NFC_CLK);
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enable_nfc_clk(1);
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}
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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setup_iomux_fec();
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setup_iomux_i2c();
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setup_iomux_nand();
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setup_iomux_video();
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m53_set_clock();
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mxc_set_sata_internal_clock();
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/* NAND clock @ 33MHz */
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m53_set_nand();
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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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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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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: DENX M53EVK\n");
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return 0;
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}
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/*
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* NAND SPL
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*/
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#ifdef CONFIG_SPL_BUILD
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void spl_board_init(void)
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{
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setup_iomux_nand();
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m53_set_clock();
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m53_set_nand();
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}
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u32 spl_boot_device(void)
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{
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return BOOT_DEVICE_NAND;
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}
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#endif
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