diff options
Diffstat (limited to 'arch/arm/cpu/armv7/mx6/litesom.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/litesom.c | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/arch/arm/cpu/armv7/mx6/litesom.c b/arch/arm/cpu/armv7/mx6/litesom.c deleted file mode 100644 index ac2eccf..0000000 --- a/arch/arm/cpu/armv7/mx6/litesom.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. - * Copyright (C) 2016 Grinn - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <asm/arch/clock.h> -#include <asm/arch/iomux.h> -#include <asm/arch/imx-regs.h> -#include <asm/arch/crm_regs.h> -#include <asm/arch/mx6ul_pins.h> -#include <asm/arch/mx6-pins.h> -#include <asm/arch/sys_proto.h> -#include <asm/gpio.h> -#include <asm/imx-common/iomux-v3.h> -#include <asm/imx-common/boot_mode.h> -#include <asm/io.h> -#include <common.h> -#include <fsl_esdhc.h> -#include <linux/sizes.h> -#include <mmc.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ - PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ - PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) - -int dram_init(void) -{ - gd->ram_size = imx_ddr_size(); - - return 0; -} - -static iomux_v3_cfg_t const emmc_pads[] = { - MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA04__USDHC2_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA05__USDHC2_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA06__USDHC2_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX6_PAD_NAND_DATA07__USDHC2_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - - /* RST_B */ - MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), -}; - -#ifdef CONFIG_FSL_ESDHC -static struct fsl_esdhc_cfg emmc_cfg = {USDHC2_BASE_ADDR, 0, 8}; - -#define EMMC_PWR_GPIO IMX_GPIO_NR(4, 10) - -int litesom_mmc_init(bd_t *bis) -{ - int ret; - - /* eMMC */ - imx_iomux_v3_setup_multiple_pads(emmc_pads, ARRAY_SIZE(emmc_pads)); - gpio_direction_output(EMMC_PWR_GPIO, 0); - udelay(500); - gpio_direction_output(EMMC_PWR_GPIO, 1); - emmc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); - - ret = fsl_esdhc_initialize(bis, &emmc_cfg); - if (ret) { - printf("Warning: failed to initialize mmc dev 1 (eMMC)\n"); - return ret; - } - - return 0; -} -#endif - -#ifdef CONFIG_SPL_BUILD -#include <libfdt.h> -#include <spl.h> -#include <asm/arch/mx6-ddr.h> - - -static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = { - .grp_addds = 0x00000030, - .grp_ddrmode_ctl = 0x00020000, - .grp_b0ds = 0x00000030, - .grp_ctlds = 0x00000030, - .grp_b1ds = 0x00000030, - .grp_ddrpke = 0x00000000, - .grp_ddrmode = 0x00020000, - .grp_ddr_type = 0x000c0000, -}; - -static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = { - .dram_dqm0 = 0x00000030, - .dram_dqm1 = 0x00000030, - .dram_ras = 0x00000030, - .dram_cas = 0x00000030, - .dram_odt0 = 0x00000030, - .dram_odt1 = 0x00000030, - .dram_sdba2 = 0x00000000, - .dram_sdclk_0 = 0x00000030, - .dram_sdqs0 = 0x00000030, - .dram_sdqs1 = 0x00000030, - .dram_reset = 0x00000030, -}; - -static struct mx6_mmdc_calibration mx6_mmcd_calib = { - .p0_mpwldectrl0 = 0x00000000, - .p0_mpdgctrl0 = 0x41570155, - .p0_mprddlctl = 0x4040474A, - .p0_mpwrdlctl = 0x40405550, -}; - -struct mx6_ddr_sysinfo ddr_sysinfo = { - .dsize = 0, - .cs_density = 20, - .ncs = 1, - .cs1_mirror = 0, - .rtt_wr = 2, - .rtt_nom = 1, /* RTT_Nom = RZQ/2 */ - .walat = 0, /* Write additional latency */ - .ralat = 5, /* Read additional latency */ - .mif3_mode = 3, /* Command prediction working mode */ - .bi_on = 1, /* Bank interleaving enabled */ - .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */ - .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */ - .ddr_type = DDR_TYPE_DDR3, - .refsel = 0, /* Refresh cycles at 64KHz */ - .refr = 1, /* 2 refresh commands per refresh cycle */ -}; - -static struct mx6_ddr3_cfg mem_ddr = { - .mem_speed = 800, - .density = 4, - .width = 16, - .banks = 8, - .rowaddr = 15, - .coladdr = 10, - .pagesz = 2, - .trcd = 1375, - .trcmin = 4875, - .trasmin = 3500, -}; - -static void ccgr_init(void) -{ - struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; - - writel(0xFFFFFFFF, &ccm->CCGR0); - writel(0xFFFFFFFF, &ccm->CCGR1); - writel(0xFFFFFFFF, &ccm->CCGR2); - writel(0xFFFFFFFF, &ccm->CCGR3); - writel(0xFFFFFFFF, &ccm->CCGR4); - writel(0xFFFFFFFF, &ccm->CCGR5); - writel(0xFFFFFFFF, &ccm->CCGR6); - writel(0xFFFFFFFF, &ccm->CCGR7); -} - -static void spl_dram_init(void) -{ - unsigned long ram_size; - - mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs); - mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr); - - /* - * Get actual RAM size, so we can adjust DDR row size for <512M - * memories - */ - ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, SZ_512M); - if (ram_size < SZ_512M) { - mem_ddr.rowaddr = 14; - mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr); - } -} - -void litesom_init_f(void) -{ - ccgr_init(); - - /* setup AIPS and disable watchdog */ - arch_cpu_init(); - -#ifdef CONFIG_BOARD_EARLY_INIT_F - board_early_init_f(); -#endif - - /* setup GP timer */ - timer_init(); - - /* UART clocks enabled and gd valid - init serial console */ - preloader_console_init(); - - /* DDR initialization */ - spl_dram_init(); -} -#endif |