diff options
author | Marek Vasut <marex@denx.de> | 2018-10-04 22:24:14 +0300 |
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committer | Stefano Babic <sbabic@denx.de> | 2018-10-16 11:34:19 +0300 |
commit | 39cb4f3c25a1cafbe867d0951d2d54b475a68990 (patch) | |
tree | 4332524a79735e7c85884433ab07c74a294dc05f /board/menlo/m53menlo/m53menlo.c | |
parent | ed85f771902b624891062d3c0fbd6fbf2f4d0982 (diff) | |
download | u-boot-39cb4f3c25a1cafbe867d0951d2d54b475a68990.tar.xz |
arm: mx5: Add M53Menlo board
Add Menlosystems M53 board, based on the M53 SoM.
This board has Ethernet, USB host, USB gadget, UART and LCD on it.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'board/menlo/m53menlo/m53menlo.c')
-rw-r--r-- | board/menlo/m53menlo/m53menlo.c | 513 |
1 files changed, 513 insertions, 0 deletions
diff --git a/board/menlo/m53menlo/m53menlo.c b/board/menlo/m53menlo/m53menlo.c new file mode 100644 index 0000000000..6bdd6d5b23 --- /dev/null +++ b/board/menlo/m53menlo/m53menlo.c @@ -0,0 +1,513 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Menlosystems M53Menlo board + * + * Copyright (C) 2012-2017 Marek Vasut <marex@denx.de> + * Copyright (C) 2014-2017 Olaf Mandel <o.mandel@menlosystems.com> + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/clock.h> +#include <asm/arch/iomux-mx53.h> +#include <asm/mach-imx/mx5_video.h> +#include <asm/mach-imx/video.h> +#include <asm/gpio.h> +#include <asm/spl.h> +#include <fdt_support.h> +#include <fsl_esdhc.h> +#include <i2c.h> +#include <ipu_pixfmt.h> +#include <linux/errno.h> +#include <linux/fb.h> +#include <mmc.h> +#include <netdev.h> +#include <spl.h> +#include <splash.h> +#include <usb/ehci-ci.h> + +DECLARE_GLOBAL_DATA_PTR; + +static u32 mx53_dram_size[2]; + +ulong board_get_usable_ram_top(ulong total_size) +{ + /* + * WARNING: We must override get_effective_memsize() function here + * to report only the size of the first DRAM bank. This is to make + * U-Boot relocator place U-Boot into valid memory, that is, at the + * end of the first DRAM bank. If we did not override this function + * like so, U-Boot would be placed at the address of the first DRAM + * bank + total DRAM size - sizeof(uboot), which in the setup where + * each DRAM bank contains 512MiB of DRAM would result in placing + * U-Boot into invalid memory area close to the end of the first + * DRAM bank. + */ + return PHYS_SDRAM_2 + mx53_dram_size[1]; +} + +int dram_init(void) +{ + mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30); + mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30); + + gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1]; + + return 0; +} + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = mx53_dram_size[0]; + + gd->bd->bi_dram[1].start = PHYS_SDRAM_2; + gd->bd->bi_dram[1].size = mx53_dram_size[1]; + + return 0; +} + +static void setup_iomux_uart(void) +{ + static const iomux_v3_cfg_t uart_pads[] = { + MX53_PAD_PATA_DMACK__UART1_RXD_MUX, + MX53_PAD_PATA_DIOW__UART1_TXD_MUX, + }; + + imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads)); +} + +#ifdef CONFIG_USB_EHCI_MX5 +int board_ehci_hcd_init(int port) +{ + if (port == 0) { + /* USB OTG PWRON */ + imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4, + PAD_CTL_PKE | + PAD_CTL_DSE_HIGH)); + gpio_direction_output(IMX_GPIO_NR(1, 4), 0); + + /* USB OTG Over Current */ + imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13); + } else if (port == 1) { + /* USB Host PWRON */ + imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2, + PAD_CTL_PKE | + PAD_CTL_DSE_HIGH)); + gpio_direction_output(IMX_GPIO_NR(1, 2), 0); + + /* USB Host Over Current */ + imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC); + } + + return 0; +} +#endif + +static void setup_iomux_fec(void) +{ + static const iomux_v3_cfg_t fec_pads[] = { + /* MDIO pads */ + NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS | + PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE), + NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH), + + /* FEC 0 pads */ + NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH), + + /* FEC 1 pads */ + NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS, + PAD_CTL_HYS | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH), + }; + + imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads)); +} + +#ifdef CONFIG_FSL_ESDHC +struct fsl_esdhc_cfg esdhc_cfg = { + MMC_SDHC1_BASE_ADDR, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1); + gpio_direction_input(IMX_GPIO_NR(1, 1)); + + return !gpio_get_value(IMX_GPIO_NR(1, 1)); +} + +#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \ + PAD_CTL_PUS_100K_UP) +#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \ + PAD_CTL_DSE_HIGH) + +int board_mmc_init(bd_t *bis) +{ + static const iomux_v3_cfg_t sd1_pads[] = { + NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL), + }; + + esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + + imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads)); + + return fsl_esdhc_initialize(bis, &esdhc_cfg); +} +#endif + +#ifdef CONFIG_VIDEO +static void enable_lvds_clock(struct display_info_t const *dev, const u8 hclk) +{ + static struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE; + int ret; + + /* For ETM0430G0DH6 model, this must be enabled before the clock. */ + gpio_direction_output(IMX_GPIO_NR(6, 0), 1); + + /* + * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to + * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 . + */ + ret = mxc_set_clock(MXC_HCLK, hclk, MXC_LDB_CLK); + if (ret) + puts("IPU: Failed to configure LDB clock\n"); + + /* Configure CCM_CSCMR2 */ + clrsetbits_le32(&mxc_ccm->cscmr2, + (0x7 << 26) | BIT(10) | BIT(8), + (0x5 << 26) | BIT(10) | BIT(8)); + + /* Configure LDB_CTRL */ + writel(0x201, 0x53fa8008); +} + +static void enable_lvds_etm0430g0dh6(struct display_info_t const *dev) +{ + /* For ETM0430G0DH6 model, this must be enabled before the clock. */ + gpio_direction_output(IMX_GPIO_NR(6, 0), 1); + + /* + * Set LVDS clock to 9 MHz for the display. The PLL4 is set to + * 63 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 . + */ + enable_lvds_clock(dev, 63); +} + +static void enable_lvds_etm0700g0dh6(struct display_info_t const *dev) +{ + /* + * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to + * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 . + */ + enable_lvds_clock(dev, 233); + + /* For ETM0700G0DH6 model, this may be enabled after the clock. */ + gpio_direction_output(IMX_GPIO_NR(6, 0), 1); +} + +static const char *lvds_compat_string; + +static int detect_lvds(struct display_info_t const *dev) +{ + u8 touchid[23]; + u8 *touchptr = &touchid[0]; + int ret; + + ret = i2c_set_bus_num(0); + if (ret) + return 0; + + /* Touchscreen is at address 0x38, ID register is 0xbb. */ + ret = i2c_read(0x38, 0xbb, 1, touchid, sizeof(touchid)); + if (ret) + return 0; + + /* EP0430 prefixes the response with 0xbb, skip it. */ + if (*touchptr == 0xbb) + touchptr++; + + /* Skip the 'EP' prefix. */ + touchptr += 2; + + ret = !memcmp(touchptr, &dev->mode.name[7], 4); + if (ret) + lvds_compat_string = dev->mode.name; + + return ret; +} + +void board_preboot_os(void) +{ + /* Power off the LCD to prevent awful color flicker */ + gpio_direction_output(IMX_GPIO_NR(6, 0), 0); +} + +int ft_board_setup(void *blob, bd_t *bd) +{ + if (lvds_compat_string) + do_fixup_by_path_string(blob, "/panel", "compatible", + lvds_compat_string); + + return 0; +} + +struct display_info_t const displays[] = { + { + .bus = 0, + .addr = 0, + .detect = detect_lvds, + .enable = enable_lvds_etm0430g0dh6, + .pixfmt = IPU_PIX_FMT_RGB666, + .mode = { + .name = "edt,etm0430g0dh6", + .refresh = 60, + .xres = 480, + .yres = 272, + .pixclock = 111111, /* picosecond (9 MHz) */ + .left_margin = 2, + .right_margin = 2, + .upper_margin = 2, + .lower_margin = 2, + .hsync_len = 41, + .vsync_len = 10, + .sync = 0x40000000, + .vmode = FB_VMODE_NONINTERLACED + } + }, { + .bus = 0, + .addr = 0, + .detect = detect_lvds, + .enable = enable_lvds_etm0700g0dh6, + .pixfmt = IPU_PIX_FMT_RGB666, + .mode = { + .name = "edt,etm0700g0dh6", + .refresh = 60, + .xres = 800, + .yres = 480, + .pixclock = 30048, /* picosecond (33.28 MHz) */ + .left_margin = 40, + .right_margin = 88, + .upper_margin = 10, + .lower_margin = 33, + .hsync_len = 128, + .vsync_len = 2, + .sync = FB_SYNC_EXT, + .vmode = FB_VMODE_NONINTERLACED + } + } +}; + +size_t display_count = ARRAY_SIZE(displays); +#endif + +#ifdef CONFIG_SPLASH_SCREEN +static struct splash_location default_splash_locations[] = { + { + .name = "mmc_fs", + .storage = SPLASH_STORAGE_MMC, + .flags = SPLASH_STORAGE_FS, + .devpart = "0:1", + }, +}; + +int splash_screen_prepare(void) +{ + return splash_source_load(default_splash_locations, + ARRAY_SIZE(default_splash_locations)); +} +#endif + +#define I2C_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \ + PAD_CTL_PUS_100K_UP | PAD_CTL_ODE) + +static void setup_iomux_i2c(void) +{ + static const iomux_v3_cfg_t i2c_pads[] = { + /* I2C1 */ + NEW_PAD_CTRL(MX53_PAD_EIM_D28__I2C1_SDA, I2C_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_EIM_D21__I2C1_SCL, I2C_PAD_CTRL), + /* I2C2 */ + NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL), + NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL), + }; + + imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads)); +} + +static void setup_iomux_video(void) +{ + static const iomux_v3_cfg_t lcd_pads[] = { + MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3, + MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK, + MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2, + MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1, + MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0, + }; + + imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads)); +} + +static void setup_iomux_nand(void) +{ + static const iomux_v3_cfg_t nand_pads[] = { + NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B, + PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B, + PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE, + PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE, + PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B, + PAD_CTL_PUS_100K_UP), + NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0, + PAD_CTL_PUS_100K_UP), + NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0, + PAD_CTL_DSE_HIGH), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE), + }; + + imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads)); +} + +static void m53_set_clock(void) +{ + int ret; + const u32 ref_clk = MXC_HCLK; + const u32 dramclk = 400; + u32 cpuclk; + + imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0, + PAD_CTL_DSE_HIGH | PAD_CTL_PKE)); + gpio_direction_input(IMX_GPIO_NR(4, 0)); + + /* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */ + cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800; + + ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK); + if (ret) + printf("CPU: Switch CPU clock to %dMHz failed\n", cpuclk); + + ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK); + if (ret) { + printf("CPU: Switch peripheral clock to %dMHz failed\n", + dramclk); + } + + ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK); + if (ret) + printf("CPU: Switch DDR clock to %dMHz failed\n", dramclk); +} + +static void m53_set_nand(void) +{ + u32 i; + + /* NAND flash is muxed on ATA pins */ + setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK); + + /* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */ + for (i = 0x4; i < 0x94; i += 0x18) { + clrbits_le32(WEIM_BASE_ADDR + i, + WEIM_GCR2_MUX16_BYP_GRANT_MASK); + } + + mxc_set_clock(0, 33, MXC_NFC_CLK); + enable_nfc_clk(1); +} + +int board_early_init_f(void) +{ + setup_iomux_uart(); + setup_iomux_fec(); + setup_iomux_i2c(); + setup_iomux_nand(); + setup_iomux_video(); + + m53_set_clock(); + + mxc_set_sata_internal_clock(); + + /* NAND clock @ 33MHz */ + m53_set_nand(); + + return 0; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + return 0; +} + +int checkboard(void) +{ + puts("Board: Menlosystems M53Menlo\n"); + + return 0; +} + +/* + * NAND SPL + */ +#ifdef CONFIG_SPL_BUILD +void spl_board_init(void) +{ + setup_iomux_nand(); + m53_set_clock(); + m53_set_nand(); +} + +u32 spl_boot_device(void) +{ + return BOOT_DEVICE_NAND; +} +#endif |