diff options
Diffstat (limited to 'roms/u-boot/board/beckhoff/mx53cx9020/mx53cx9020.c')
| -rw-r--r-- | roms/u-boot/board/beckhoff/mx53cx9020/mx53cx9020.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/roms/u-boot/board/beckhoff/mx53cx9020/mx53cx9020.c b/roms/u-boot/board/beckhoff/mx53cx9020/mx53cx9020.c new file mode 100644 index 000000000..a3657db82 --- /dev/null +++ b/roms/u-boot/board/beckhoff/mx53cx9020/mx53cx9020.c @@ -0,0 +1,267 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2015 Beckhoff Automation GmbH & Co. KG + * Patrick Bruenn <p.bruenn@beckhoff.com> + * + * Based on <u-boot>/board/freescale/mx53loco/mx53loco.c + * Copyright (C) 2011 Freescale Semiconductor, Inc. + */ + +#include <common.h> +#include <cpu_func.h> +#include <init.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/clock.h> +#include <asm/arch/iomux-mx53.h> +#include <asm/global_data.h> +#include <asm/mach-imx/mx5_video.h> +#include <ACEX1K.h> +#include <asm/gpio.h> +#include <linux/delay.h> + +enum LED_GPIOS { + GPIO_SD1_CD = IMX_GPIO_NR(1, 1), + GPIO_SD2_CD = IMX_GPIO_NR(1, 4), + GPIO_LED_SD2_R = IMX_GPIO_NR(3, 16), + GPIO_LED_SD2_B = IMX_GPIO_NR(3, 17), + GPIO_LED_SD2_G = IMX_GPIO_NR(3, 18), + GPIO_LED_SD1_R = IMX_GPIO_NR(3, 19), + GPIO_LED_SD1_B = IMX_GPIO_NR(3, 20), + GPIO_LED_SD1_G = IMX_GPIO_NR(3, 21), + GPIO_LED_PWR_R = IMX_GPIO_NR(3, 22), + GPIO_LED_PWR_B = IMX_GPIO_NR(3, 23), + GPIO_LED_PWR_G = IMX_GPIO_NR(3, 24), + GPIO_SUPS_INT = IMX_GPIO_NR(3, 31), + GPIO_C3_CONFIG = IMX_GPIO_NR(6, 8), + GPIO_C3_STATUS = IMX_GPIO_NR(6, 7), + GPIO_C3_DONE = IMX_GPIO_NR(6, 9), +}; + +#define CCAT_BASE_ADDR ((void *)0xf0000000) +#define CCAT_END_ADDR (CCAT_BASE_ADDR + (1024 * 1024 * 32)) +#define CCAT_SIZE 1191788 +#define CCAT_SIGN_ADDR (CCAT_BASE_ADDR + 12) +static const char CCAT_SIGNATURE[] = "CCAT"; + +static const u32 CCAT_MODE_CONFIG = 0x0024DC81; +static const u32 CCAT_MODE_RUN = 0x0033DC8F; + +DECLARE_GLOBAL_DATA_PTR; + +u32 get_board_rev(void) +{ + struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; + struct fuse_bank *bank = &iim->bank[0]; + struct fuse_bank0_regs *fuse = + (struct fuse_bank0_regs *)bank->fuse_regs; + + int rev = readl(&fuse->gp[6]); + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} + +/* + * Set CCAT mode + * @mode: use CCAT_MODE_CONFIG or CCAT_MODE_RUN + */ +void weim_cs0_settings(u32 mode) +{ + struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR; + + writel(0x0, &weim_regs->cs0gcr1); + writel(mode, &weim_regs->cs0gcr1); + writel(0x00001002, &weim_regs->cs0gcr2); + + writel(0x04000000, &weim_regs->cs0rcr1); + writel(0x00000000, &weim_regs->cs0rcr2); + + writel(0x04000000, &weim_regs->cs0wcr1); + writel(0x00000000, &weim_regs->cs0wcr2); +} + +static void setup_gpio_eim(void) +{ + gpio_request(GPIO_C3_STATUS, "GPIO_C3_STATUS"); + gpio_request(GPIO_C3_DONE, "GPIO_C3_DONE"); + gpio_request(GPIO_C3_CONFIG, "GPIO_C3_CONFIG"); + gpio_direction_input(GPIO_C3_STATUS); + gpio_direction_input(GPIO_C3_DONE); + gpio_direction_output(GPIO_C3_CONFIG, 1); + + weim_cs0_settings(CCAT_MODE_RUN); +} + +static void setup_gpio_sups(void) +{ + gpio_request(GPIO_SUPS_INT, "GPIO_SUPS_INT"); + gpio_direction_input(GPIO_SUPS_INT); + + static const int BLINK_INTERVALL = 50000; + int status = 1; + while (gpio_get_value(GPIO_SUPS_INT)) { + /* signal "CX SUPS power fail" */ + gpio_set_value(GPIO_LED_PWR_R, + (++status / BLINK_INTERVALL) % 2); + } + + /* signal "CX power up" */ + gpio_set_value(GPIO_LED_PWR_R, 1); +} + +static void setup_gpio_leds(void) +{ + gpio_request(GPIO_LED_SD2_R, "GPIO_LED_SD2_R"); + gpio_request(GPIO_LED_SD2_B, "GPIO_LED_SD2_B"); + gpio_request(GPIO_LED_SD2_G, "GPIO_LED_SD2_G"); + gpio_request(GPIO_LED_SD1_R, "GPIO_LED_SD1_R"); + gpio_request(GPIO_LED_SD1_B, "GPIO_LED_SD1_B"); + gpio_request(GPIO_LED_SD1_G, "GPIO_LED_SD1_G"); + gpio_request(GPIO_LED_PWR_R, "GPIO_LED_PWR_R"); + gpio_request(GPIO_LED_PWR_B, "GPIO_LED_PWR_B"); + gpio_request(GPIO_LED_PWR_G, "GPIO_LED_PWR_G"); + + gpio_direction_output(GPIO_LED_SD2_R, 0); + gpio_direction_output(GPIO_LED_SD2_B, 0); + gpio_direction_output(GPIO_LED_SD2_G, 0); + gpio_direction_output(GPIO_LED_SD1_R, 0); + gpio_direction_output(GPIO_LED_SD1_B, 0); + gpio_direction_output(GPIO_LED_SD1_G, 0); + gpio_direction_output(GPIO_LED_PWR_R, 0); + gpio_direction_output(GPIO_LED_PWR_B, 0); + gpio_direction_output(GPIO_LED_PWR_G, 0); +} + +static int power_init(void) +{ + /* nothing to do on CX9020 */ + return 0; +} + +static void clock_1GHz(void) +{ + int ret; + u32 ref_clk = MXC_HCLK; + /* + * After increasing voltage to 1.25V, we can switch + * CPU clock to 1GHz and DDR to 400MHz safely + */ + ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK); + if (ret) + printf("CPU: Switch CPU clock to 1GHZ failed\n"); + + ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK); + ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK); + if (ret) + printf("CPU: Switch DDR clock to 400MHz failed\n"); +} + +int board_early_init_f(void) +{ + + return 0; +} + +int board_init(void) +{ + gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100; + + mxc_set_sata_internal_clock(); + + setup_gpio_leds(); + setup_gpio_sups(); + setup_gpio_eim(); + setup_iomux_lcd(); + + return 0; +} + +int checkboard(void) +{ + puts("Board: Beckhoff CX9020\n"); + + return 0; +} + +static int ccat_config_fn(int assert_config, int flush, int cookie) +{ + /* prepare FPGA for programming */ + weim_cs0_settings(CCAT_MODE_CONFIG); + gpio_set_value(GPIO_C3_CONFIG, 0); + udelay(1); + gpio_set_value(GPIO_C3_CONFIG, 1); + udelay(230); + + return FPGA_SUCCESS; +} + +static int ccat_status_fn(int cookie) +{ + return FPGA_FAIL; +} + +static int ccat_write_fn(const void *buf, size_t buf_len, int flush, int cookie) +{ + const uint8_t *const buffer = buf; + + /* program CCAT */ + int i; + for (i = 0; i < buf_len; ++i) + writeb(buffer[i], CCAT_BASE_ADDR); + + writeb(0xff, CCAT_BASE_ADDR); + writeb(0xff, CCAT_BASE_ADDR); + + return FPGA_SUCCESS; +} + +static int ccat_done_fn(int cookie) +{ + /* programming complete? */ + return gpio_get_value(GPIO_C3_DONE); +} + +static int ccat_post_fn(int cookie) +{ + /* switch to FPGA run mode */ + weim_cs0_settings(CCAT_MODE_RUN); + invalidate_dcache_range((ulong) CCAT_BASE_ADDR, (ulong) CCAT_END_ADDR); + + if (memcmp(CCAT_SIGN_ADDR, CCAT_SIGNATURE, sizeof(CCAT_SIGNATURE))) { + printf("Verifing CCAT firmware failed, signature not found\n"); + return FPGA_FAIL; + } + + /* signal "CX booting OS" */ + gpio_set_value(GPIO_LED_PWR_R, 1); + gpio_set_value(GPIO_LED_PWR_G, 1); + gpio_set_value(GPIO_LED_PWR_B, 0); + return FPGA_SUCCESS; +} + +static Altera_CYC2_Passive_Serial_fns ccat_fns = { + .config = ccat_config_fn, + .status = ccat_status_fn, + .done = ccat_done_fn, + .write = ccat_write_fn, + .abort = ccat_post_fn, + .post = ccat_post_fn, +}; + +static Altera_desc ccat_fpga = { + .family = Altera_CYC2, + .iface = passive_serial, + .size = CCAT_SIZE, + .iface_fns = &ccat_fns, + .base = CCAT_BASE_ADDR, +}; + +int board_late_init(void) +{ + if (!power_init()) + clock_1GHz(); + + fpga_init(); + fpga_add(fpga_altera, &ccat_fpga); + + return 0; +} |