From 3a21773129f6ef218f1978d05a1a5d5cf6801ab6 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 3 Jan 2014 15:55:58 -0200 Subject: mx6: Add initial support for the Hummingboard solo SolidRun has designed the Hummingboard board based on mx6q/dl/solo. Add the initial support for the mx6 solo variant. More information about this hardware can be found at: http://imx.solid-run.com/wiki/index.php?title=Carrier-One_Hardware (Carrier-One was the previous name of Hummingboard). Based on the work from Jon Nettleton . Signed-off-by: Jon Nettleton Signed-off-by: Fabio Estevam --- board/solidrun/hummingboard/Makefile | 9 + board/solidrun/hummingboard/README | 40 +++++ board/solidrun/hummingboard/hummingboard.c | 187 +++++++++++++++++++++ board/solidrun/hummingboard/solo.cfg | 25 +++ board/solidrun/mx6-microsom/800mhz_2x128mx16.cfg | 74 ++++++++ board/solidrun/mx6-microsom/clocks.cfg | 33 ++++ .../mx6-microsom/ddr-800mhz-32bit-setup.cfg | 76 +++++++++ 7 files changed, 444 insertions(+) create mode 100644 board/solidrun/hummingboard/Makefile create mode 100644 board/solidrun/hummingboard/README create mode 100644 board/solidrun/hummingboard/hummingboard.c create mode 100644 board/solidrun/hummingboard/solo.cfg create mode 100644 board/solidrun/mx6-microsom/800mhz_2x128mx16.cfg create mode 100644 board/solidrun/mx6-microsom/clocks.cfg create mode 100644 board/solidrun/mx6-microsom/ddr-800mhz-32bit-setup.cfg (limited to 'board/solidrun') diff --git a/board/solidrun/hummingboard/Makefile b/board/solidrun/hummingboard/Makefile new file mode 100644 index 0000000..042a2f0 --- /dev/null +++ b/board/solidrun/hummingboard/Makefile @@ -0,0 +1,9 @@ +# +# (C) Copyright 2013 Freescale Semiconductor, Inc. +# Copyright (C) 2013, Boundary Devices +# Copyright (C) 2013, Jon Nettleton +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := hummingboard.o diff --git a/board/solidrun/hummingboard/README b/board/solidrun/hummingboard/README new file mode 100644 index 0000000..cfd62d4 --- /dev/null +++ b/board/solidrun/hummingboard/README @@ -0,0 +1,40 @@ +U-Boot for SolidRun Hummingboard +-------------------------------- + +This file contains information for the port of U-Boot to the Hummingboard. + +For more details about Hummingboard, please refer to: +http://imx.solid-run.com/wiki/index.php?title=Carrier-One_Hardware + +(Carrier-One was the previous name of Hummingboard). + +Building U-boot for Hummingboard +-------------------------------- + +To build U-Boot for the Hummingboard Solo version: + +$ make hummingboard_solo_config +$ make + +Flashing U-boot into the SD card +-------------------------------- + +- After the 'make' command completes, the generated 'u-boot.imx' binary must be +flashed into the SD card: + +$ sudo dd if=u-boot.imx of=/dev/mmcblk0 bs=1k seek=1; sync + +(Note - the SD card node may vary, so adjust this as needed). + +Also, a more detailed explanation on how to format the SD card is available +at doc/README.imximage. + +- Insert the micro SD card into the slot located in the bottom of the board + +- Connect a 3.3V USB to serial converter cable to the host PC. The MX6 UART +signals are available in the 26 pin connector as shown at: +http://imx.solid-run.com/wiki/index.php?title=Carrier-One_Hardware +(Check for "26 pin header layout"). + +- Power up the board via USB cable (CON201) and U-boot messages will appear in +the serial console. diff --git a/board/solidrun/hummingboard/hummingboard.c b/board/solidrun/hummingboard/hummingboard.c new file mode 100644 index 0000000..8b309b4 --- /dev/null +++ b/board/solidrun/hummingboard/hummingboard.c @@ -0,0 +1,187 @@ +/* + * Copyright (C) 2013 Freescale Semiconductor, Inc. + * Copyright (C) 2013 SolidRun ltd. + * Copyright (C) 2013 Jon Nettleton . + * + * Authors: Fabio Estevam + Jon Nettleton + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +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_PUS_47K_UP | \ + PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ + PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +#define USDHC_PAD_CLK_CTRL (PAD_CTL_SPEED_LOW | \ + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | \ + PAD_CTL_HYS) + +#define USDHC_PAD_GPIO_CTRL (PAD_CTL_PUS_22K_UP | \ + PAD_CTL_SPEED_LOW | PAD_CTL_DSE_40ohm | \ + PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + +#define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) + +#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \ + PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) + +#define ETH_PHY_RESET IMX_GPIO_NR(4, 15) + +int dram_init(void) +{ + gd->ram_size = ((phys_size_t)CONFIG_DDR_MB * 1024 * 1024); + + return 0; +} + +static iomux_v3_cfg_t const uart1_pads[] = { + MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), + MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +static void setup_iomux_uart(void) +{ + imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); +} + +static iomux_v3_cfg_t const usdhc2_pads[] = { + MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL), + MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(USDHC_PAD_GPIO_CTRL), +}; + +#ifdef CONFIG_FSL_ESDHC +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + { USDHC2_BASE_ADDR }, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + return 1; /* SD card is the boot medium, so always present */ +} + +int board_mmc_init(bd_t *bis) +{ + imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); + + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} +#endif + +#ifdef CONFIG_FEC_MXC +static iomux_v3_cfg_t const enet_pads[] = { + MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), + /* AR8035 reset */ + MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), + /* AR8035 interrupt */ + MX6_PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* GPIO16 -> AR8035 25MHz */ + MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(NO_PAD_CTRL), + MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(NO_PAD_CTRL), + MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), + /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */ + MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK), + MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), + MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), + MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), + MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD), +}; + +static void setup_iomux_enet(void) +{ + imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); + + gpio_direction_output(ETH_PHY_RESET, 0); + mdelay(2); + gpio_set_value(ETH_PHY_RESET, 1); +} + +int board_phy_config(struct phy_device *phydev) +{ + if (phydev->drv->config) + phydev->drv->config(phydev); + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + struct iomuxc_base_regs *const iomuxc_regs = + (struct iomuxc_base_regs *)IOMUXC_BASE_ADDR; + + int ret = enable_fec_anatop_clock(ENET_25MHz); + if (ret) + return ret; + + /* set gpr1[ENET_CLK_SEL] */ + setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK); + + setup_iomux_enet(); + + ret = cpu_eth_init(bis); + if (ret) + printf("FEC MXC: %s:failed\n", __func__); + + return ret; +} +#endif + +int board_early_init_f(void) +{ + setup_iomux_uart(); + + return 0; +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; + + return 0; +} + +int checkboard(void) +{ + puts("Board: Hummingboard\n"); + + return 0; +} diff --git a/board/solidrun/hummingboard/solo.cfg b/board/solidrun/hummingboard/solo.cfg new file mode 100644 index 0000000..28dd750 --- /dev/null +++ b/board/solidrun/hummingboard/solo.cfg @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2013 Boundary Devices + * Copyright (C) 2013 Jon Nettleton + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* image version */ +IMAGE_VERSION 2 + +/* + * Boot Device : one of + * spi, sd (the board has no nand neither onenand) + */ +BOOT_FROM sd + +#define __ASSEMBLY__ +#include +#include "asm/arch/mx6-ddr.h" +#include "asm/arch/iomux.h" +#include "asm/arch/crm_regs.h" + +#include "../mx6-microsom/ddr-800mhz-32bit-setup.cfg" +#include "../mx6-microsom/800mhz_2x128mx16.cfg" +#include "../mx6-microsom/clocks.cfg" diff --git a/board/solidrun/mx6-microsom/800mhz_2x128mx16.cfg b/board/solidrun/mx6-microsom/800mhz_2x128mx16.cfg new file mode 100644 index 0000000..40747ab --- /dev/null +++ b/board/solidrun/mx6-microsom/800mhz_2x128mx16.cfg @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2013 Boundary Devices + * Copyright (C) 2013 SolidRun ltd. + * Copyright (C) 2013 Jon Nettleton + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* ZQ Calibrations */ +DATA 4, MX6_MMDC_P0_MPZQHWCTRL, 0xa1390003 +DATA 4, MX6_MMDC_P1_MPZQHWCTRL, 0xa1390003 +/* write leveling */ +DATA 4, MX6_MMDC_P0_MPWLDECTRL0, 0x005a0057 +DATA 4, MX6_MMDC_P0_MPWLDECTRL1, 0x004a0052 +/* + * DQS gating, read delay, write delay calibration values + * based on calibration compare of 0x00ffff00 + */ +DATA 4, MX6_MMDC_P0_MPDGCTRL0, 0x02480240 +DATA 4, MX6_MMDC_P0_MPDGCTRL1, 0x02340230 +DATA 4, MX6_MMDC_P0_MPRDDLCTL, 0x40404440 +DATA 4, MX6_MMDC_P0_MPWRDLCTL, 0x38343034 +/* read data bit delay */ +DATA 4, MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333 +DATA 4, MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333 +DATA 4, MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333 +DATA 4, MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333 +/* Complete calibration by forced measurement */ +DATA 4, MX6_MMDC_P0_MPMUR0, 0x00000800 +DATA 4, MX6_MMDC_P1_MPMUR0, 0x00000800 + +/* + * MMDC init: + * in DDR3, 32-bit mode, only MMDC0 is initiated: + */ +DATA 4, MX6_MMDC_P0_MDPDC, 0x0002002d +DATA 4, MX6_MMDC_P0_MDOTC, 0x00333040 + +DATA 4, MX6_MMDC_P0_MDCFG0, 0x3f435313 +DATA 4, MX6_MMDC_P0_MDCFG1, 0xb66e8b63 + +DATA 4, MX6_MMDC_P0_MDCFG2, 0x01ff00db +DATA 4, MX6_MMDC_P0_MDMISC, 0x00011740 +DATA 4, MX6_MMDC_P0_MDSCR, 0x00008000 +DATA 4, MX6_MMDC_P0_MDRWD, 0x000026d2 +DATA 4, MX6_MMDC_P0_MDOR, 0x00431023 +/* CS0_END - 0x2fffffff, 512M */ +DATA 4, MX6_MMDC_P0_MDASP, 0x00000017 + +/* MMDC0_MAARCR ADOPT optimized priorities. Dyn jump disabled */ +DATA 4, 0x021b0400, 0x11420000 + +/* MMDC0_MDCTL- row-14bits; col-10bits; burst length 8;32-bit data bus */ +DATA 4, MX6_MMDC_P0_MDCTL, 0x83190000 + +/* + * Initialize 2GB DDR3 - Hynix H5TQ2G63BFR-H9C + * MR2 + */ +DATA 4, MX6_MMDC_P0_MDSCR, 0x00008032 +/* MR3 */ +DATA 4, MX6_MMDC_P0_MDSCR, 0x00008033 +/* MR1 */ +DATA 4, MX6_MMDC_P0_MDSCR, 0x00008031 +/* MR0 */ +DATA 4, MX6_MMDC_P0_MDSCR, 0x05208030 +/* ZQ calibration */ +DATA 4, MX6_MMDC_P0_MDSCR, 0x04008040 +/* final DDR setup */ +DATA 4, MX6_MMDC_P0_MDREF, 0x00007800 +DATA 4, MX6_MMDC_P0_MPODTCTRL, 0x00000007 +DATA 4, MX6_MMDC_P0_MDPDC, 0x0002556d +DATA 4, MX6_MMDC_P0_MAPSR, 0x00011006 +DATA 4, MX6_MMDC_P0_MDSCR, 0x00000000 diff --git a/board/solidrun/mx6-microsom/clocks.cfg b/board/solidrun/mx6-microsom/clocks.cfg new file mode 100644 index 0000000..1288811 --- /dev/null +++ b/board/solidrun/mx6-microsom/clocks.cfg @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2013 Boundary Devices + * Copyright (C) 2013 SolidRun ltd. + * Copyright (C) 2013 Jon Nettleton + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* set the default clock gate to save power */ +DATA 4, CCM_CCGR0, 0x00C03F3F +DATA 4, CCM_CCGR1, 0x0030FC03 +DATA 4, CCM_CCGR2, 0x0FFFC000 +DATA 4, CCM_CCGR3, 0x3FF00000 +DATA 4, CCM_CCGR4, 0x00FFF300 +DATA 4, CCM_CCGR5, 0x0F0000C3 +DATA 4, CCM_CCGR6, 0x000003FF + +/* enable AXI cache for VDOA/VPU/IPU */ +DATA 4, MX6_IOMUXC_GPR4, 0xF00000CF +/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */ +DATA 4, MX6_IOMUXC_GPR6, 0x007F007F +DATA 4, MX6_IOMUXC_GPR7, 0x007F007F + +/* + * Setup CCM_CCOSR register as follows: + * + * cko1_en = 1 --> CKO1 enabled + * cko1_div = 111 --> divide by 8 + * cko1_sel = 1011 --> ahb_clk_root + * + * This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz + */ +DATA 4, CCM_CCOSR, 0x000000fb diff --git a/board/solidrun/mx6-microsom/ddr-800mhz-32bit-setup.cfg b/board/solidrun/mx6-microsom/ddr-800mhz-32bit-setup.cfg new file mode 100644 index 0000000..f92fc19 --- /dev/null +++ b/board/solidrun/mx6-microsom/ddr-800mhz-32bit-setup.cfg @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2013 Boundary Devices + * Copyright (C) 2013 SolidRun ltd. + * Copyright (C) 2013 Jon Nettleton + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * DDR3 settings + * MX6Q ddr is limited to 1066 Mhz currently 1056 MHz(528 MHz clock), + * memory bus width: 64 bits x16/x32/x64 + * MX6DL ddr is limited to 800 MHz(400 MHz clock) + * memory bus width: 64 bits x16/x32/x64 + * MX6SOLO ddr is limited to 800 MHz(400 MHz clock) + * memory bus width: 32 bits x16/x32 + */ +/* DDR IO TYPE */ +DATA 4, MX6_IOM_GRP_DDR_TYPE, 0x000c0000 +DATA 4, MX6_IOM_GRP_DDRPKE, 0x00000000 +/* Clock */ +DATA 4, MX6_IOM_DRAM_SDCLK_0, 0x00000028 +DATA 4, MX6_IOM_DRAM_SDCLK_1, 0x00000028 +/* Address */ +DATA 4, MX6_IOM_DRAM_CAS, 0x00000010 +DATA 4, MX6_IOM_DRAM_RAS, 0x00000010 +DATA 4, MX6_IOM_GRP_ADDDS, 0x00000010 +/* Control */ +DATA 4, MX6_IOM_DRAM_RESET, 0x00000010 +DATA 4, MX6_IOM_DRAM_SDCKE0, 0x00003000 +DATA 4, MX6_IOM_DRAM_SDCKE1, 0x00003000 +DATA 4, MX6_IOM_DRAM_SDBA2, 0x00000000 +DATA 4, MX6_IOM_DRAM_SDODT0, 0x00000010 +DATA 4, MX6_IOM_DRAM_SDODT1, 0x00000010 +DATA 4, MX6_IOM_GRP_CTLDS, 0x00000010 + +/* + * Data Strobe: IOMUXC_SW_PAD_CTL_GRP_DDRMODE_CTL - DDR_INPUT=0, CMOS, + * CMOS mode saves power, but have less timing margin in case of DDR + * timing issue on your board you can try DDR_MODE: [= 0x00020000] + */ +DATA 4, MX6_IOM_DDRMODE_CTL, 0x00020000 + +DATA 4, MX6_IOM_DRAM_SDQS0, 0x00000028 +DATA 4, MX6_IOM_DRAM_SDQS1, 0x00000028 +DATA 4, MX6_IOM_DRAM_SDQS2, 0x00000028 +DATA 4, MX6_IOM_DRAM_SDQS3, 0x00000028 +DATA 4, MX6_IOM_DRAM_SDQS4, 0x00000000 +DATA 4, MX6_IOM_DRAM_SDQS5, 0x00000000 +DATA 4, MX6_IOM_DRAM_SDQS6, 0x00000000 +DATA 4, MX6_IOM_DRAM_SDQS7, 0x00000000 + +/* + * DATA:IOMUXC_SW_PAD_CTL_GRP_DDRMODE - DDR_INPUT=0, CMOS, + * CMOS mode saves power, but have less timing margin in case of DDR + * timing issue on your board you can try DDR_MODE: [= 0x00020000] + */ +DATA 4, MX6_IOM_GRP_DDRMODE, 0x00020000 + +DATA 4, MX6_IOM_GRP_B0DS, 0x00000028 +DATA 4, MX6_IOM_GRP_B1DS, 0x00000028 +DATA 4, MX6_IOM_GRP_B2DS, 0x00000028 +DATA 4, MX6_IOM_GRP_B3DS, 0x00000028 +DATA 4, MX6_IOM_GRP_B4DS, 0x00000000 +DATA 4, MX6_IOM_GRP_B5DS, 0x00000000 +DATA 4, MX6_IOM_GRP_B6DS, 0x00000000 +DATA 4, MX6_IOM_GRP_B7DS, 0x00000000 + +DATA 4, MX6_IOM_DRAM_DQM0, 0x00000028 +DATA 4, MX6_IOM_DRAM_DQM1, 0x00000028 +DATA 4, MX6_IOM_DRAM_DQM2, 0x00000028 +DATA 4, MX6_IOM_DRAM_DQM3, 0x00000028 +DATA 4, MX6_IOM_DRAM_DQM4, 0x00000000 +DATA 4, MX6_IOM_DRAM_DQM5, 0x00000000 +DATA 4, MX6_IOM_DRAM_DQM6, 0x00000000 +DATA 4, MX6_IOM_DRAM_DQM7, 0x00000000 -- cgit v1.1