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author | Ariel D'Alessandro <ariel.dalessandro@collabora.com> | 2021-11-23 13:33:30 -0300 |
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committer | Stefano Babic <sbabic@denx.de> | 2022-02-05 13:38:39 +0100 |
commit | c4c1ed68c1e85ed3100840e395d40294d38f5f7c (patch) | |
tree | c6f113260daa6a3a20635cf9747e4591fb5896c5 /board/variscite | |
parent | 4821074becd286c6878bfd5f6d7e41dbd65fa9a1 (diff) | |
download | u-boot-c4c1ed68c1e85ed3100840e395d40294d38f5f7c.zip u-boot-c4c1ed68c1e85ed3100840e395d40294d38f5f7c.tar.gz u-boot-c4c1ed68c1e85ed3100840e395d40294d38f5f7c.tar.bz2 |
imx8mn_var_som: Add support for Variscite VAR-SOM-MX8M-NANO board
Add support for iMX8MN VAR-SOM-MX8M-NANO board. Enables support for:
- 1GiB DDR4 RAM
- 16 GiB eMMC
- SD card
- Gigabit ethernet
- USBOTG1 peripheral - fastboot
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Diffstat (limited to 'board/variscite')
-rw-r--r-- | board/variscite/imx8mn_var_som/Kconfig | 17 | ||||
-rw-r--r-- | board/variscite/imx8mn_var_som/MAINTAINERS | 7 | ||||
-rw-r--r-- | board/variscite/imx8mn_var_som/Makefile | 12 | ||||
-rw-r--r-- | board/variscite/imx8mn_var_som/ddr4_timing.c | 528 | ||||
-rw-r--r-- | board/variscite/imx8mn_var_som/imx8mn_var_som.c | 30 | ||||
-rw-r--r-- | board/variscite/imx8mn_var_som/imximage-8mn-ddr4.cfg | 10 | ||||
-rw-r--r-- | board/variscite/imx8mn_var_som/spl.c | 93 |
7 files changed, 697 insertions, 0 deletions
diff --git a/board/variscite/imx8mn_var_som/Kconfig b/board/variscite/imx8mn_var_som/Kconfig new file mode 100644 index 0000000..cfe6fc8 --- /dev/null +++ b/board/variscite/imx8mn_var_som/Kconfig @@ -0,0 +1,17 @@ +if TARGET_IMX8MN_VAR_SOM + +config SYS_BOARD + default "imx8mn_var_som" + +config SYS_VENDOR + default "variscite" + +config SYS_CONFIG_NAME + default "imx8mn_var_som" + +config IMX_CONFIG + default "board/variscite/imx8mn_var_som/imximage-8mn-ddr4.cfg" + +source "board/freescale/common/Kconfig" + +endif diff --git a/board/variscite/imx8mn_var_som/MAINTAINERS b/board/variscite/imx8mn_var_som/MAINTAINERS new file mode 100644 index 0000000..068f807 --- /dev/null +++ b/board/variscite/imx8mn_var_som/MAINTAINERS @@ -0,0 +1,7 @@ +ARM i.MX8MN VARISCITE VAR-SOM-MX8MN MODULE +M: Ariel D'Alessandro <ariel.dalessandro@collabora.com> +S: Maintained +F: arch/arm/dts/imx8mn-var-som* +F: board/variscite/imx8mn_var_som/ +F: configs/imx8mn_var_som_defconfig +F: include/configs/imx8mn_var_som.h diff --git a/board/variscite/imx8mn_var_som/Makefile b/board/variscite/imx8mn_var_som/Makefile new file mode 100644 index 0000000..a8b6a34 --- /dev/null +++ b/board/variscite/imx8mn_var_som/Makefile @@ -0,0 +1,12 @@ +# +# Copyright 2021 Collabora Ltd. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += imx8mn_var_som.o + +ifdef CONFIG_SPL_BUILD +obj-y += spl.o +obj-y += ddr4_timing.o +endif diff --git a/board/variscite/imx8mn_var_som/ddr4_timing.c b/board/variscite/imx8mn_var_som/ddr4_timing.c new file mode 100644 index 0000000..0ed69ee --- /dev/null +++ b/board/variscite/imx8mn_var_som/ddr4_timing.c @@ -0,0 +1,528 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 NXP + * + * Generated code from MX8M_DDR_tool + * Align with uboot version: + * imx_v2018.03_4.14.78_1.0.0_ga ~ imx_v2018.04_4.19.35_1.0.0_ga + */ + +#include <linux/kernel.h> +#include <asm/arch/ddr.h> + +static struct dram_cfg_param ddr_ddrc_cfg[] = { + /** Initialize DDRC registers **/ + { 0x3d400000, 0x81040010 }, + { 0x3d400030, 0x20 }, + { 0x3d400034, 0x221306 }, + { 0x3d400050, 0x210070 }, + { 0x3d400054, 0x10008 }, + { 0x3d400060, 0x0 }, + { 0x3d400064, 0x9200d2 }, + { 0x3d4000c0, 0x0 }, + { 0x3d4000c4, 0x1000 }, + { 0x3d4000d0, 0xc0030126 }, + { 0x3d4000d4, 0x770000 }, + { 0x3d4000dc, 0x8340105 }, + { 0x3d4000e0, 0x180200 }, + { 0x3d4000e4, 0x110000 }, + { 0x3d4000e8, 0x2000600 }, + { 0x3d4000ec, 0x810 }, + { 0x3d4000f0, 0x20 }, + { 0x3d4000f4, 0xec7 }, + { 0x3d400100, 0x11122914 }, + { 0x3d400104, 0x4051c }, + { 0x3d400108, 0x608050d }, + { 0x3d40010c, 0x400c }, + { 0x3d400110, 0x8030409 }, + { 0x3d400114, 0x6060403 }, + { 0x3d40011c, 0x606 }, + { 0x3d400120, 0x5050d08 }, + { 0x3d400124, 0x2040a }, + { 0x3d40012c, 0x1409010e }, + { 0x3d400130, 0x8 }, + { 0x3d40013c, 0x0 }, + { 0x3d400180, 0x1000040 }, + { 0x3d400184, 0x493e }, + { 0x3d400190, 0x38b8207 }, + { 0x3d400194, 0x2020303 }, + { 0x3d400198, 0x7f04011 }, + { 0x3d40019c, 0xb0 }, + { 0x3d4001a0, 0xe0400018 }, + { 0x3d4001a4, 0x48005a }, + { 0x3d4001a8, 0x80000000 }, + { 0x3d4001b0, 0x1 }, + { 0x3d4001b4, 0xb07 }, + { 0x3d4001b8, 0x4 }, + { 0x3d4001c0, 0x1 }, + { 0x3d4001c4, 0x0 }, + { 0x3d400200, 0x3f1f }, + { 0x3d400204, 0x3f0909 }, + { 0x3d400208, 0x700 }, + { 0x3d40020c, 0x0 }, + { 0x3d400210, 0x1f1f }, + { 0x3d400214, 0x7070707 }, + { 0x3d400218, 0x7070707 }, + { 0x3d40021c, 0xf0f }, + { 0x3d400220, 0x3f01 }, + { 0x3d400240, 0x6000610 }, + { 0x3d400244, 0x1323 }, + { 0x3d400400, 0x100 }, + { 0x3d400250, 0x317d1a07 }, + { 0x3d400254, 0xf }, + { 0x3d40025c, 0x2a001b76 }, + { 0x3d400264, 0x7300b473 }, + { 0x3d40026c, 0x30000e06 }, + { 0x3d400300, 0x14 }, + { 0x3d40036c, 0x10 }, + { 0x3d400404, 0x13193 }, + { 0x3d400408, 0x6096 }, + { 0x3d400490, 0x1 }, + { 0x3d400494, 0x2000c00 }, + { 0x3d400498, 0x3c00db }, + { 0x3d40049c, 0x100009 }, + { 0x3d4004a0, 0x2 }, + { 0x3d402050, 0x210070 }, + { 0x3d402064, 0x40005e }, + { 0x3d4020dc, 0x40105 }, + { 0x3d4020e0, 0x0 }, + { 0x3d4020e8, 0x2000600 }, + { 0x3d4020ec, 0x10 }, + { 0x3d402100, 0xb081209 }, + { 0x3d402104, 0x2020d }, + { 0x3d402108, 0x5050309 }, + { 0x3d40210c, 0x400c }, + { 0x3d402110, 0x5030206 }, + { 0x3d402114, 0x3030202 }, + { 0x3d40211c, 0x303 }, + { 0x3d402120, 0x3030d04 }, + { 0x3d402124, 0x20208 }, + { 0x3d40212c, 0x1005010e }, + { 0x3d402130, 0x8 }, + { 0x3d40213c, 0x0 }, + { 0x3d402180, 0x1000040 }, + { 0x3d402190, 0x3858204 }, + { 0x3d402194, 0x2020303 }, + { 0x3d4021b4, 0x504 }, + { 0x3d4021b8, 0x4 }, + { 0x3d402240, 0x6000604 }, + { 0x3d4020f4, 0xec7 }, +}; + +/* PHY Initialize Configuration */ +static struct dram_cfg_param ddr_ddrphy_cfg[] = { + { 0x1005f, 0x2fd }, + { 0x1015f, 0x2fd }, + { 0x1105f, 0x2fd }, + { 0x1115f, 0x2fd }, + { 0x11005f, 0x2fd }, + { 0x11015f, 0x2fd }, + { 0x11105f, 0x2fd }, + { 0x11115f, 0x2fd }, + { 0x55, 0x355 }, + { 0x1055, 0x355 }, + { 0x2055, 0x355 }, + { 0x3055, 0x355 }, + { 0x4055, 0x55 }, + { 0x5055, 0x55 }, + { 0x6055, 0x355 }, + { 0x7055, 0x355 }, + { 0x8055, 0x355 }, + { 0x9055, 0x355 }, + { 0x200c5, 0xa }, + { 0x1200c5, 0x6 }, + { 0x2002e, 0x2 }, + { 0x12002e, 0x1 }, + { 0x20024, 0x8 }, + { 0x2003a, 0x2 }, + { 0x120024, 0x8 }, + { 0x2003a, 0x2 }, + { 0x20056, 0x6 }, + { 0x120056, 0xa }, + { 0x1004d, 0x1a }, + { 0x1014d, 0x1a }, + { 0x1104d, 0x1a }, + { 0x1114d, 0x1a }, + { 0x11004d, 0x1a }, + { 0x11014d, 0x1a }, + { 0x11104d, 0x1a }, + { 0x11114d, 0x1a }, + { 0x10049, 0xe38 }, + { 0x10149, 0xe38 }, + { 0x11049, 0xe38 }, + { 0x11149, 0xe38 }, + { 0x110049, 0xe38 }, + { 0x110149, 0xe38 }, + { 0x111049, 0xe38 }, + { 0x111149, 0xe38 }, + { 0x43, 0x63 }, + { 0x1043, 0x63 }, + { 0x2043, 0x63 }, + { 0x3043, 0x63 }, + { 0x4043, 0x63 }, + { 0x5043, 0x63 }, + { 0x6043, 0x63 }, + { 0x7043, 0x63 }, + { 0x8043, 0x63 }, + { 0x9043, 0x63 }, + { 0x20018, 0x1 }, + { 0x20075, 0x2 }, + { 0x20050, 0x0 }, + { 0x20008, 0x258 }, + { 0x120008, 0x10a }, + { 0x20088, 0x9 }, + { 0x200b2, 0x268 }, + { 0x10043, 0x5b1 }, + { 0x10143, 0x5b1 }, + { 0x11043, 0x5b1 }, + { 0x11143, 0x5b1 }, + { 0x1200b2, 0x268 }, + { 0x110043, 0x5b1 }, + { 0x110143, 0x5b1 }, + { 0x111043, 0x5b1 }, + { 0x111143, 0x5b1 }, + { 0x200fa, 0x1 }, + { 0x1200fa, 0x1 }, + { 0x20019, 0x5 }, + { 0x120019, 0x5 }, + { 0x200f0, 0x5555 }, + { 0x200f1, 0x5555 }, + { 0x200f2, 0x5555 }, + { 0x200f3, 0x5555 }, + { 0x200f4, 0x5555 }, + { 0x200f5, 0x5555 }, + { 0x200f6, 0x5555 }, + { 0x200f7, 0xf000 }, + { 0x20025, 0x0 }, + { 0x2002d, 0x0 }, + { 0x12002d, 0x0 }, + { 0x2005b, 0x7529 }, + { 0x2005c, 0x0 }, + { 0x200c7, 0x21 }, + { 0x200ca, 0x24 }, + { 0x200cc, 0x1f7 }, + { 0x1200c7, 0x21 }, + { 0x1200ca, 0x24 }, + { 0x1200cc, 0x1f7 }, + { 0x2007d, 0x212 }, + { 0x12007d, 0x212 }, + { 0x2007c, 0x61 }, + { 0x12007c, 0x61 }, + { 0x1004a, 0x500 }, + { 0x1104a, 0x500 }, + { 0x2002c, 0x0 }, +}; + +/* P0 message block parameter for training firmware */ +static struct dram_cfg_param ddr_fsp0_cfg[] = { + { 0xd0000, 0x0 }, + { 0x54003, 0x960 }, + { 0x54004, 0x2 }, + { 0x54005, 0x2830 }, + { 0x54006, 0x25e }, + { 0x54007, 0x1000 }, + { 0x54008, 0x101 }, + { 0x5400b, 0x31f }, + { 0x5400c, 0xc8 }, + { 0x5400d, 0x100 }, + { 0x54012, 0x1 }, + { 0x5402f, 0x834 }, + { 0x54030, 0x105 }, + { 0x54031, 0x18 }, + { 0x54032, 0x200 }, + { 0x54033, 0x200 }, + { 0x54034, 0x600 }, + { 0x54035, 0x810 }, + { 0x54036, 0x101 }, + { 0x5403f, 0x1221 }, + { 0x541fc, 0x100 }, + { 0xd0000, 0x1 }, +}; + +/* P1 message block parameter for training firmware */ +static struct dram_cfg_param ddr_fsp1_cfg[] = { + { 0xd0000, 0x0 }, + { 0x54002, 0x1 }, + { 0x54003, 0x42a }, + { 0x54004, 0x2 }, + { 0x54005, 0x2830 }, + { 0x54006, 0x25e }, + { 0x54007, 0x1000 }, + { 0x54008, 0x101 }, + { 0x5400b, 0x21f }, + { 0x5400c, 0xc8 }, + { 0x5400d, 0x100 }, + { 0x54012, 0x1 }, + { 0x5402f, 0x4 }, + { 0x54030, 0x105 }, + { 0x54033, 0x200 }, + { 0x54034, 0x600 }, + { 0x54035, 0x10 }, + { 0x54036, 0x101 }, + { 0x5403f, 0x1221 }, + { 0x541fc, 0x100 }, + { 0xd0000, 0x1 }, +}; + +/* P0 2D message block parameter for training firmware */ +static struct dram_cfg_param ddr_fsp0_2d_cfg[] = { + { 0xd0000, 0x0 }, + { 0x54003, 0x960 }, + { 0x54004, 0x2 }, + { 0x54005, 0x2830 }, + { 0x54006, 0x25e }, + { 0x54007, 0x1000 }, + { 0x54008, 0x101 }, + { 0x5400b, 0x61 }, + { 0x5400c, 0xc8 }, + { 0x5400d, 0x100 }, + { 0x5400e, 0x1f7f }, + { 0x54012, 0x1 }, + { 0x5402f, 0x834 }, + { 0x54030, 0x105 }, + { 0x54031, 0x18 }, + { 0x54032, 0x200 }, + { 0x54033, 0x200 }, + { 0x54034, 0x600 }, + { 0x54035, 0x810 }, + { 0x54036, 0x101 }, + { 0x5403f, 0x1221 }, + { 0x541fc, 0x100 }, + { 0xd0000, 0x1 }, +}; + +/* DRAM PHY init engine image */ +static struct dram_cfg_param ddr_phy_pie[] = { + { 0xd0000, 0x0 }, + { 0x90000, 0x10 }, + { 0x90001, 0x400 }, + { 0x90002, 0x10e }, + { 0x90003, 0x0 }, + { 0x90004, 0x0 }, + { 0x90005, 0x8 }, + { 0x90029, 0xb }, + { 0x9002a, 0x480 }, + { 0x9002b, 0x109 }, + { 0x9002c, 0x8 }, + { 0x9002d, 0x448 }, + { 0x9002e, 0x139 }, + { 0x9002f, 0x8 }, + { 0x90030, 0x478 }, + { 0x90031, 0x109 }, + { 0x90032, 0x2 }, + { 0x90033, 0x10 }, + { 0x90034, 0x139 }, + { 0x90035, 0xb }, + { 0x90036, 0x7c0 }, + { 0x90037, 0x139 }, + { 0x90038, 0x44 }, + { 0x90039, 0x633 }, + { 0x9003a, 0x159 }, + { 0x9003b, 0x14f }, + { 0x9003c, 0x630 }, + { 0x9003d, 0x159 }, + { 0x9003e, 0x47 }, + { 0x9003f, 0x633 }, + { 0x90040, 0x149 }, + { 0x90041, 0x4f }, + { 0x90042, 0x633 }, + { 0x90043, 0x179 }, + { 0x90044, 0x8 }, + { 0x90045, 0xe0 }, + { 0x90046, 0x109 }, + { 0x90047, 0x0 }, + { 0x90048, 0x7c8 }, + { 0x90049, 0x109 }, + { 0x9004a, 0x0 }, + { 0x9004b, 0x1 }, + { 0x9004c, 0x8 }, + { 0x9004d, 0x0 }, + { 0x9004e, 0x45a }, + { 0x9004f, 0x9 }, + { 0x90050, 0x0 }, + { 0x90051, 0x448 }, + { 0x90052, 0x109 }, + { 0x90053, 0x40 }, + { 0x90054, 0x633 }, + { 0x90055, 0x179 }, + { 0x90056, 0x1 }, + { 0x90057, 0x618 }, + { 0x90058, 0x109 }, + { 0x90059, 0x40c0 }, + { 0x9005a, 0x633 }, + { 0x9005b, 0x149 }, + { 0x9005c, 0x8 }, + { 0x9005d, 0x4 }, + { 0x9005e, 0x48 }, + { 0x9005f, 0x4040 }, + { 0x90060, 0x633 }, + { 0x90061, 0x149 }, + { 0x90062, 0x0 }, + { 0x90063, 0x4 }, + { 0x90064, 0x48 }, + { 0x90065, 0x40 }, + { 0x90066, 0x633 }, + { 0x90067, 0x149 }, + { 0x90068, 0x10 }, + { 0x90069, 0x4 }, + { 0x9006a, 0x18 }, + { 0x9006b, 0x0 }, + { 0x9006c, 0x4 }, + { 0x9006d, 0x78 }, + { 0x9006e, 0x549 }, + { 0x9006f, 0x633 }, + { 0x90070, 0x159 }, + { 0x90071, 0xd49 }, + { 0x90072, 0x633 }, + { 0x90073, 0x159 }, + { 0x90074, 0x94a }, + { 0x90075, 0x633 }, + { 0x90076, 0x159 }, + { 0x90077, 0x441 }, + { 0x90078, 0x633 }, + { 0x90079, 0x149 }, + { 0x9007a, 0x42 }, + { 0x9007b, 0x633 }, + { 0x9007c, 0x149 }, + { 0x9007d, 0x1 }, + { 0x9007e, 0x633 }, + { 0x9007f, 0x149 }, + { 0x90080, 0x0 }, + { 0x90081, 0xe0 }, + { 0x90082, 0x109 }, + { 0x90083, 0xa }, + { 0x90084, 0x10 }, + { 0x90085, 0x109 }, + { 0x90086, 0x9 }, + { 0x90087, 0x3c0 }, + { 0x90088, 0x149 }, + { 0x90089, 0x9 }, + { 0x9008a, 0x3c0 }, + { 0x9008b, 0x159 }, + { 0x9008c, 0x18 }, + { 0x9008d, 0x10 }, + { 0x9008e, 0x109 }, + { 0x9008f, 0x0 }, + { 0x90090, 0x3c0 }, + { 0x90091, 0x109 }, + { 0x90092, 0x18 }, + { 0x90093, 0x4 }, + { 0x90094, 0x48 }, + { 0x90095, 0x18 }, + { 0x90096, 0x4 }, + { 0x90097, 0x58 }, + { 0x90098, 0xb }, + { 0x90099, 0x10 }, + { 0x9009a, 0x109 }, + { 0x9009b, 0x1 }, + { 0x9009c, 0x10 }, + { 0x9009d, 0x109 }, + { 0x9009e, 0x5 }, + { 0x9009f, 0x7c0 }, + { 0x900a0, 0x109 }, + { 0x900a1, 0x0 }, + { 0x900a2, 0x8140 }, + { 0x900a3, 0x10c }, + { 0x900a4, 0x10 }, + { 0x900a5, 0x8138 }, + { 0x900a6, 0x10c }, + { 0x900a7, 0x8 }, + { 0x900a8, 0x7c8 }, + { 0x900a9, 0x101 }, + { 0x900aa, 0x8 }, + { 0x900ab, 0x448 }, + { 0x900ac, 0x109 }, + { 0x900ad, 0xf }, + { 0x900ae, 0x7c0 }, + { 0x900af, 0x109 }, + { 0x900b0, 0x47 }, + { 0x900b1, 0x630 }, + { 0x900b2, 0x109 }, + { 0x900b3, 0x8 }, + { 0x900b4, 0x618 }, + { 0x900b5, 0x109 }, + { 0x900b6, 0x8 }, + { 0x900b7, 0xe0 }, + { 0x900b8, 0x109 }, + { 0x900b9, 0x0 }, + { 0x900ba, 0x7c8 }, + { 0x900bb, 0x109 }, + { 0x900bc, 0x8 }, + { 0x900bd, 0x8140 }, + { 0x900be, 0x10c }, + { 0x900bf, 0x0 }, + { 0x900c0, 0x1 }, + { 0x900c1, 0x8 }, + { 0x900c2, 0x8 }, + { 0x900c3, 0x4 }, + { 0x900c4, 0x8 }, + { 0x900c5, 0x8 }, + { 0x900c6, 0x7c8 }, + { 0x900c7, 0x101 }, + { 0x90006, 0x0 }, + { 0x90007, 0x0 }, + { 0x90008, 0x8 }, + { 0x90009, 0x0 }, + { 0x9000a, 0x0 }, + { 0x9000b, 0x0 }, + { 0xd00e7, 0x400 }, + { 0x90017, 0x0 }, + { 0x90026, 0x2b }, + { 0x2000b, 0x4b }, + { 0x2000c, 0x96 }, + { 0x2000d, 0x5dc }, + { 0x2000e, 0x2c }, + { 0x12000b, 0x21 }, + { 0x12000c, 0x42 }, + { 0x12000d, 0x29a }, + { 0x12000e, 0x21 }, + { 0x9000c, 0x0 }, + { 0x9000d, 0x173 }, + { 0x9000e, 0x60 }, + { 0x9000f, 0x6110 }, + { 0x90010, 0x2152 }, + { 0x90011, 0xdfbd }, + { 0x90012, 0xffff }, + { 0x90013, 0x6152 }, + { 0x20089, 0x1 }, + { 0x20088, 0x19 }, + { 0xc0080, 0x0 }, + { 0xd0000, 0x1 }, +}; + +static struct dram_fsp_msg ddr_dram_fsp_msg[] = { + { + /* P0 2400mts 1D */ + .drate = 2400, + .fw_type = FW_1D_IMAGE, + .fsp_cfg = ddr_fsp0_cfg, + .fsp_cfg_num = ARRAY_SIZE(ddr_fsp0_cfg), + }, + { + /* P1 1066mts 1D */ + .drate = 1066, + .fw_type = FW_1D_IMAGE, + .fsp_cfg = ddr_fsp1_cfg, + .fsp_cfg_num = ARRAY_SIZE(ddr_fsp1_cfg), + }, + { + /* P0 2400mts 2D */ + .drate = 2400, + .fw_type = FW_2D_IMAGE, + .fsp_cfg = ddr_fsp0_2d_cfg, + .fsp_cfg_num = ARRAY_SIZE(ddr_fsp0_2d_cfg), + }, +}; + +/* ddr timing config params */ +struct dram_timing_info dram_timing = { + .ddrc_cfg = ddr_ddrc_cfg, + .ddrc_cfg_num = ARRAY_SIZE(ddr_ddrc_cfg), + .ddrphy_cfg = ddr_ddrphy_cfg, + .ddrphy_cfg_num = ARRAY_SIZE(ddr_ddrphy_cfg), + .fsp_msg = ddr_dram_fsp_msg, + .fsp_msg_num = ARRAY_SIZE(ddr_dram_fsp_msg), + .ddrphy_pie = ddr_phy_pie, + .ddrphy_pie_num = ARRAY_SIZE(ddr_phy_pie), + .fsp_table = { 2400, 1066, }, +}; diff --git a/board/variscite/imx8mn_var_som/imx8mn_var_som.c b/board/variscite/imx8mn_var_som/imx8mn_var_som.c new file mode 100644 index 0000000..e274e0e --- /dev/null +++ b/board/variscite/imx8mn_var_som/imx8mn_var_som.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2021 Collabora Ltd. + */ + +#include <common.h> +#include <env.h> +#include <asm/io.h> + +static void setup_fec(void) +{ + struct iomuxc_gpr_base_regs *gpr = + (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; + + /* Use 125M anatop REF_CLK1 for ENET1, not from external */ + clrsetbits_le32(&gpr->gpr[1], 0x2000, 0); +} + +int board_init(void) +{ + if (CONFIG_IS_ENABLED(FEC_MXC)) + setup_fec(); + + return 0; +} + +int board_mmc_get_env_dev(int devno) +{ + return devno; +} diff --git a/board/variscite/imx8mn_var_som/imximage-8mn-ddr4.cfg b/board/variscite/imx8mn_var_som/imximage-8mn-ddr4.cfg new file mode 100644 index 0000000..2083233 --- /dev/null +++ b/board/variscite/imx8mn_var_som/imximage-8mn-ddr4.cfg @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2021 Collabora Ltd. + */ + +#define __ASSEMBLY__ + +ROM_VERSION v2 +BOOT_FROM sd +LOADER u-boot-spl-ddr.bin 0x912000 diff --git a/board/variscite/imx8mn_var_som/spl.c b/board/variscite/imx8mn_var_som/spl.c new file mode 100644 index 0000000..32703c5 --- /dev/null +++ b/board/variscite/imx8mn_var_som/spl.c @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2021 Collabora Ltd. + * + */ + +#include <hang.h> +#include <init.h> +#include <spl.h> +#include <asm/arch/clock.h> +#include <asm/arch/ddr.h> +#include <asm/arch/imx8mn_pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/mach-imx/boot_mode.h> +#include <asm/mach-imx/gpio.h> +#include <dm/device.h> +#include <dm/uclass.h> + +int spl_board_boot_device(enum boot_device boot_dev_spl) +{ + return BOOT_DEVICE_BOOTROM; +} + +void spl_dram_init(void) +{ + ddr_init(&dram_timing); +} + +void spl_board_init(void) +{ + struct udevice *dev; + int ret; + + debug("Normal Boot\n"); + + ret = uclass_get_device_by_name(UCLASS_CLK, + "clock-controller@30380000", + &dev); + if (ret < 0) + puts("Failed to find clock node. Check device tree\n"); +} + +#define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1) +#define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE) + +static const iomux_v3_cfg_t uart_pads[] = { + IMX8MN_PAD_UART4_RXD__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), + IMX8MN_PAD_UART4_TXD__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), +}; + +static const iomux_v3_cfg_t wdog_pads[] = { + IMX8MN_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL), +}; + +int board_early_init_f(void) +{ + struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR; + + imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads)); + set_wdog_reset(wdog); + + imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads)); + init_uart_clk(3); + + return 0; +} + +void board_init_f(ulong dummy) +{ + int ret; + + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end - __bss_start); + + arch_cpu_init(); + + board_early_init_f(); + + timer_init(); + + preloader_console_init(); + + ret = spl_init(); + if (ret) { + debug("spl_init() failed: %d\n", ret); + hang(); + } + + /* DDR initialization */ + spl_dram_init(); + + board_init_r(NULL, 0); +} |