diff options
Diffstat (limited to 'board/sks-kinkel/sksimx6/sksimx6.c')
| -rw-r--r-- | board/sks-kinkel/sksimx6/sksimx6.c | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/board/sks-kinkel/sksimx6/sksimx6.c b/board/sks-kinkel/sksimx6/sksimx6.c new file mode 100644 index 0000000000..d50d4086f6 --- /dev/null +++ b/board/sks-kinkel/sksimx6/sksimx6.c @@ -0,0 +1,426 @@ +/* + * Copyright (C) 2016 Stefano Babic <sbabic@denx.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <asm/arch/clock.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/iomux.h> +#include <asm/arch/mx6-pins.h> +#include <linux/errno.h> +#include <asm/gpio.h> +#include <asm/mach-imx/iomux-v3.h> +#include <asm/mach-imx/video.h> +#include <mmc.h> +#include <fsl_esdhc.h> +#include <asm/arch/crm_regs.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <spl.h> +#include <netdev.h> +#include <miiphy.h> +#include <micrel.h> + +#include <common.h> +#include <malloc.h> +#include <fuse.h> + +DECLARE_GLOBAL_DATA_PTR; + +#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \ + PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +#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) + +#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \ + PAD_CTL_ODE | PAD_CTL_SRE_FAST) + +#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + +static iomux_v3_cfg_t const uart1_pads[] = { + IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), + IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), +}; + +static iomux_v3_cfg_t const gpios_pads[] = { + IOMUX_PADS(PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +static iomux_v3_cfg_t const usdhc2_pads[] = { + IOMUX_PADS(PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL)),/* CD */ +}; + +static iomux_v3_cfg_t const enet_pads[] = { + IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | + MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | + MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | + MUX_PAD_CTRL(ENET_PAD_CTRL)), + IOMUX_PADS(PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +iomux_v3_cfg_t const enet_pads1[] = { + /* pin 35 - 1 (PHY_AD2) on reset */ + IOMUX_PADS(PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* pin 32 - 1 - (MODE0) all */ + IOMUX_PADS(PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* pin 31 - 1 - (MODE1) all */ + IOMUX_PADS(PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* pin 28 - 1 - (MODE2) all */ + IOMUX_PADS(PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* pin 27 - 1 - (MODE3) all */ + IOMUX_PADS(PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */ + IOMUX_PADS(PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL)), + /* pin 42 PHY nRST */ + IOMUX_PADS(PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +static int mx6_rgmii_rework(struct phy_device *phydev) +{ + + /* min rx data delay */ + ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, + 0x0); + /* min tx data delay */ + ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, + 0x0); + /* max rx/tx clock delay, min rx/tx control */ + ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, + 0xf0f0); + + return 0; +} + +int board_phy_config(struct phy_device *phydev) +{ + mx6_rgmii_rework(phydev); + + if (phydev->drv->config) + return phydev->drv->config(phydev); + + return 0; +} + +#define ENET_NRST IMX_GPIO_NR(1, 25) + +void setup_iomux_enet(void) +{ + SETUP_IOMUX_PADS(enet_pads); + +} + +int board_eth_init(bd_t *bis) +{ + uint32_t base = IMX_FEC_BASE; + struct mii_dev *bus = NULL; + struct phy_device *phydev = NULL; + int ret; + + setup_iomux_enet(); + + bus = fec_get_miibus(base, -1); + if (!bus) + return -EINVAL; + /* scan phy */ + phydev = phy_find_by_mask(bus, (0xf << CONFIG_FEC_MXC_PHYADDR), + PHY_INTERFACE_MODE_RGMII); + + if (!phydev) { + ret = -EINVAL; + goto free_bus; + } + ret = fec_probe(bis, -1, base, bus, phydev); + if (ret) + goto free_phydev; + + return 0; + +free_phydev: + free(phydev); +free_bus: + free(bus); + return ret; +} + +int board_early_init_f(void) +{ + SETUP_IOMUX_PADS(uart1_pads); + + return 0; +} + +int board_init(void) +{ + /* Address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + /* Take in reset the ATMega processor */ + SETUP_IOMUX_PADS(gpios_pads); + gpio_direction_output(IMX_GPIO_NR(5, 4), 0); + + return 0; +} + +int dram_init(void) +{ + gd->ram_size = imx_ddr_size(); + + return 0; +} + +struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC2_BASE_ADDR, 0}, +}; + +#define USDHC2_CD_GPIO IMX_GPIO_NR(2, 0) +int board_mmc_getcd(struct mmc *mmc) +{ + struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; + int ret = 0; + + if (cfg->esdhc_base == USDHC2_BASE_ADDR) + ret = 1; + + return ret; +} + +int board_mmc_init(bd_t *bis) +{ + int ret; + + SETUP_IOMUX_PADS(usdhc2_pads); + gpio_direction_input(USDHC2_CD_GPIO); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + usdhc_cfg[0].max_bus_width = 4; + + ret = fsl_esdhc_initialize(bis, &usdhc_cfg[0]); + if (ret) { + printf("Warning: failed to initialize mmc dev \n"); + return ret; + } + + return 0; +} + +#if defined(CONFIG_SPL_BUILD) +#include <asm/arch/mx6-ddr.h> + +/* + * Driving strength: + * 0x30 == 40 Ohm + * 0x28 == 48 Ohm + */ +#define IMX6SDL_DRIVE_STRENGTH 0x230 + + +/* configure MX6SOLO/DUALLITE mmdc DDR io registers */ +struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = { + .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH, + .dram_cas = IMX6SDL_DRIVE_STRENGTH, + .dram_ras = IMX6SDL_DRIVE_STRENGTH, + .dram_reset = IMX6SDL_DRIVE_STRENGTH, + .dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdba2 = 0x00000000, + .dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH, + .dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm0 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm1 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm2 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm3 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm4 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm5 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm6 = IMX6SDL_DRIVE_STRENGTH, + .dram_dqm7 = IMX6SDL_DRIVE_STRENGTH, +}; + +/* configure MX6SOLO/DUALLITE mmdc GRP io registers */ +struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = { + .grp_ddr_type = 0x000c0000, + .grp_ddrmode_ctl = 0x00020000, + .grp_ddrpke = 0x00000000, + .grp_addds = IMX6SDL_DRIVE_STRENGTH, + .grp_ctlds = IMX6SDL_DRIVE_STRENGTH, + .grp_ddrmode = 0x00020000, + .grp_b0ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b1ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b2ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b3ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b4ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b5ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b6ds = IMX6SDL_DRIVE_STRENGTH, + .grp_b7ds = IMX6SDL_DRIVE_STRENGTH, +}; + +/* MT41K128M16JT-125 */ +static struct mx6_ddr3_cfg mt41k128m16jt_125 = { + /* quad = 1066, duallite = 800 */ + .mem_speed = 1066, + .density = 2, + .width = 16, + .banks = 8, + .rowaddr = 14, + .coladdr = 10, + .pagesz = 2, + .trcd = 1375, + .trcmin = 4875, + .trasmin = 3500, + .SRT = 0, +}; + +static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = { + .p0_mpwldectrl0 = 0x0043004E, + .p0_mpwldectrl1 = 0x003D003F, + .p1_mpwldectrl0 = 0x00230021, + .p1_mpwldectrl1 = 0x0028003E, + .p0_mpdgctrl0 = 0x42580250, + .p0_mpdgctrl1 = 0x0238023C, + .p1_mpdgctrl0 = 0x422C0238, + .p1_mpdgctrl1 = 0x02180228, + .p0_mprddlctl = 0x44464A46, + .p1_mprddlctl = 0x44464A42, + .p0_mpwrdlctl = 0x36343236, + .p1_mpwrdlctl = 0x36343230, +}; + +/* DDR 64bit 1GB */ +static struct mx6_ddr_sysinfo mem_qdl = { + .dsize = 2, + .cs1_mirror = 0, + /* config for full 4GB range so that get_mem_size() works */ + .cs_density = 32, + .ncs = 1, + .bi_on = 1, + .rtt_nom = 1, + .rtt_wr = 1, + .ralat = 5, + .walat = 0, + .mif3_mode = 3, + .rst_to_cke = 0x23, + .sde_to_rst = 0x10, + .refsel = 1, /* Refresh cycles at 32KHz */ + .refr = 7, /* 8 refresh commands per refresh cycle */ +}; + +static void ccgr_init(void) +{ + struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* set the default clock gate to save power */ + writel(0x00C03F3F, &ccm->CCGR0); + writel(0x0030FC03, &ccm->CCGR1); + writel(0x0FFFC000, &ccm->CCGR2); + writel(0x3FF00000, &ccm->CCGR3); + writel(0x00FFF300, &ccm->CCGR4); + writel(0xFFFFFFFF, &ccm->CCGR5); + writel(0x000003FF, &ccm->CCGR6); +} + +static void spl_dram_init(void) +{ + if (is_cpu_type(MXC_CPU_MX6DL)) { + mt41k128m16jt_125.mem_speed = 800; + mem_qdl.rtt_nom = 1; + mem_qdl.rtt_wr = 1; + + mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs); + mx6_dram_cfg(&mem_qdl, &mx6dl_1g_mmdc_calib, &mt41k128m16jt_125); + } else { + printf("Wrong CPU for this board\n"); + return; + } + + udelay(100); + +#ifdef CONFIG_MX6_DDRCAL + + /* Perform DDR DRAM calibration */ + mmdc_do_write_level_calibration(&mem_qdl); + mmdc_do_dqs_calibration(&mem_qdl); +#endif +} + +static void check_bootcfg(void) +{ + u32 val5, val6; + + fuse_sense(0, 5, &val5); + fuse_sense(0, 6, &val6); + /* Check if boot from MMC */ + if (val6 & 0x10) { + puts("BT_FUSE_SEL already fused, will do nothing\n"); + return; + } + fuse_prog(0, 5, 0x00000840); + /* BT_FUSE_SEL */ + fuse_prog(0, 6, 0x00000010); + + do_reset(NULL, 0, 0, NULL); +} + +void board_init_f(ulong dummy) +{ + ccgr_init(); + + /* setup AIPS and disable watchdog */ + arch_cpu_init(); + + gpr_init(); + + /* iomux */ + board_early_init_f(); + + /* setup GP timer */ + timer_init(); + + /* UART clocks enabled and gd valid - init serial console */ + preloader_console_init(); + + /* DDR initialization */ + spl_dram_init(); + + /* Set fuses for new boards and reboot if not set */ + check_bootcfg(); + + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end - __bss_start); + + /* load/boot image from boot device */ + board_init_r(NULL, 0); +} +#endif |