On Fri, Aug 31, 2018 at 12:40 AM, Otavio Salvador otavio@ossystems.com.br wrote:
From: Fabio Estevam festevam@gmail.com
There are two versions of imx6ul pico SOMs: one with 256MB and another one with 512MB of RAM.
Convert to SPL so that both versions can be supported.
Currently only the 256MB is tested/supported.
Signed-off-by: Fabio Estevam festevam@gmail.com Signed-off-by: Fabio Berton fabio.berton@ossystems.com.br Signed-off-by: Otavio Salvador otavio@ossystems.com.br
arch/arm/mach-imx/mx6/Kconfig | 1 + board/technexion/pico-imx6ul/Makefile | 2 +- board/technexion/pico-imx6ul/spl.c | 115 ++++++++++++++++++++++++++ configs/pico-imx6ul_defconfig | 14 +++- include/configs/pico-imx6ul.h | 1 + 5 files changed, 131 insertions(+), 2 deletions(-) create mode 100644 board/technexion/pico-imx6ul/spl.c
diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig index a2799c436e..06c25bae36 100644 --- a/arch/arm/mach-imx/mx6/Kconfig +++ b/arch/arm/mach-imx/mx6/Kconfig @@ -402,6 +402,7 @@ config TARGET_OT1200 config TARGET_PICO_IMX6UL bool "PICO-IMX6UL-EMMC" select MX6UL
select SUPPORT_SPLconfig TARGET_LITEBOARD bool "Grinn liteBoard (i.MX6UL)" diff --git a/board/technexion/pico-imx6ul/Makefile b/board/technexion/pico-imx6ul/Makefile index 8fdb7875ac..b7493df01c 100644 --- a/board/technexion/pico-imx6ul/Makefile +++ b/board/technexion/pico-imx6ul/Makefile @@ -2,4 +2,4 @@ # (C) Copyright 2015 Technexion Ltd. # (C) Copyright 2015 Freescale Semiconductor, Inc.
-obj-y := pico-imx6ul.o +obj-y := pico-imx6ul.o spl.o diff --git a/board/technexion/pico-imx6ul/spl.c b/board/technexion/pico-imx6ul/spl.c new file mode 100644 index 0000000000..6989c81946 --- /dev/null +++ b/board/technexion/pico-imx6ul/spl.c @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0+
space
+#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/mach-imx/iomux-v3.h> +#include <asm/mach-imx/boot_mode.h> +#include <linux/libfdt.h> +#include <spl.h>
+#if defined(CONFIG_SPL_BUILD) +#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 = 0x00080000,+};
+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 = 0x01380134,.p0_mprddlctl = 0x40404244,.p0_mpwrdlctl = 0x40405050,+};
+static struct mx6_ddr_sysinfo ddr_sysinfo = {
.dsize = 0,.cs1_mirror = 0,.cs_density = 32,.ncs = 1,.bi_on = 1,.rtt_nom = 1,.rtt_wr = 0,.ralat = 5,.walat = 0,.mif3_mode = 3,.rst_to_cke = 0x23,.sde_to_rst = 0x10,.refsel = 1,.refr = 3,+};
+static struct mx6_ddr3_cfg mem_ddr = {
.mem_speed = 1333,.density = 2,.width = 16,.banks = 8,.rowaddr = 14,.coladdr = 10,.pagesz = 2,.trcd = 1350,.trcmin = 4950,.trasmin = 3600,+};
+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);
These can be know values.