[U-Boot] [PATCH 2/4] board: topic_miamilite: Support cost-reduced version
Michal Simek
michal.simek at xilinx.com
Tue Jan 22 07:30:54 UTC 2019
On 18. 01. 19 9:34, Mike Looijmans wrote:
> On 07-09-18 11:30, Michal Simek wrote:
>> On 24.8.2018 14:00, Mike Looijmans wrote:
>>> To reduce board cost, the topic-miamilite board hardware was adapted. It now
>>> only has single QSPI NOR flash and a single DDR RAM chip. This reduces the
>>> memory interface to 16-bit and halves the available RAM and flash.
>>>
>>> Signed-off-by: Mike Looijmans <mike.looijmans at topic.nl>
>>> ---
>>> arch/arm/dts/zynq-topic-miamilite.dts | 7 ++++---
>>> board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c | 14 +++++++-------
>>> board/topic/zynq/zynq-topic-miamilite/ps7_regs.txt | 14 +++++++-------
>>> include/configs/topic_miami.h | 7 +++++--
>>> include/configs/topic_miamilite.h | 11 +++++++++++
>>> 5 files changed, 34 insertions(+), 19 deletions(-)
>>> create mode 100644 include/configs/topic_miamilite.h
>>>
>>> diff --git a/arch/arm/dts/zynq-topic-miamilite.dts b/arch/arm/dts/zynq-topic-miamilite.dts
>>> index 366fd5b..c06549c 100644
>>> --- a/arch/arm/dts/zynq-topic-miamilite.dts
>>> +++ b/arch/arm/dts/zynq-topic-miamilite.dts
>>> @@ -9,8 +9,9 @@
>>> / {
>>> model = "Topic Miami Lite Zynq Board";
>>> compatible = "topic,miamilite", "xlnx,zynq-7000";
>>> -};
>>>
>>> -&qspi {
>>> - is-dual = <1>;
>>> + memory at 0 {
>>> + device_type = "memory";
>>> + reg = <0x0 0x20000000>;
>>> + };
>>> };
>>> diff --git a/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c b/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c
>>> index afec403..28670bd 100644
>>> --- a/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c
>>> +++ b/board/topic/zynq/zynq-topic-miamilite/ps7_init_gpl.c
>>> @@ -59,7 +59,7 @@ static unsigned long ps7_clock_init_data_3_0[] = {
>>> };
>>>
>>> static unsigned long ps7_ddr_init_data_3_0[] = {
>>> - EMIT_MASKWRITE(0xF8006000, 0x0001FFFFU, 0x00000080U),
>>> + EMIT_MASKWRITE(0xF8006000, 0x0001FFFFU, 0x00000084U),
>>> EMIT_MASKWRITE(0xF8006004, 0x0007FFFFU, 0x00001081U),
>>> EMIT_MASKWRITE(0xF8006008, 0x03FFFFFFU, 0x03C0780FU),
>>> EMIT_MASKWRITE(0xF800600C, 0x03FFFFFFU, 0x02001001U),
>>> @@ -74,9 +74,9 @@ static unsigned long ps7_ddr_init_data_3_0[] = {
>>> EMIT_MASKWRITE(0xF8006030, 0xFFFFFFFFU, 0x00040930U),
>>> EMIT_MASKWRITE(0xF8006034, 0x13FF3FFFU, 0x000116D4U),
>>> EMIT_MASKWRITE(0xF8006038, 0x00000003U, 0x00000000U),
>>> - EMIT_MASKWRITE(0xF800603C, 0x000FFFFFU, 0x00000777U),
>>> - EMIT_MASKWRITE(0xF8006040, 0xFFFFFFFFU, 0xFFF00000U),
>>> - EMIT_MASKWRITE(0xF8006044, 0x0FFFFFFFU, 0x0F666666U),
>>> + EMIT_MASKWRITE(0xF800603C, 0x000FFFFFU, 0x00000666U),
>>> + EMIT_MASKWRITE(0xF8006040, 0xFFFFFFFFU, 0xFFFF0000U),
>>> + EMIT_MASKWRITE(0xF8006044, 0x0FFFFFFFU, 0x0F555555U),
>>> EMIT_MASKWRITE(0xF8006048, 0x0003F03FU, 0x0003C008U),
>>> EMIT_MASKWRITE(0xF8006050, 0xFF0F8FFFU, 0x77010800U),
>>> EMIT_MASKWRITE(0xF8006058, 0x00010000U, 0x00000000U),
>>> @@ -102,8 +102,8 @@ static unsigned long ps7_ddr_init_data_3_0[] = {
>>> EMIT_MASKWRITE(0xF8006114, 0x000000FFU, 0x00000000U),
>>> EMIT_MASKWRITE(0xF8006118, 0x7FFFFFCFU, 0x40000001U),
>>> EMIT_MASKWRITE(0xF800611C, 0x7FFFFFCFU, 0x40000001U),
>>> - EMIT_MASKWRITE(0xF8006120, 0x7FFFFFCFU, 0x40000001U),
>>> - EMIT_MASKWRITE(0xF8006124, 0x7FFFFFCFU, 0x40000001U),
>>> + EMIT_MASKWRITE(0xF8006120, 0x7FFFFFCFU, 0x40000000U),
>>> + EMIT_MASKWRITE(0xF8006124, 0x7FFFFFCFU, 0x40000000U),
>>> EMIT_MASKWRITE(0xF800612C, 0x000FFFFFU, 0x0003482CU),
>>> EMIT_MASKWRITE(0xF8006130, 0x000FFFFFU, 0x00033032U),
>>> EMIT_MASKWRITE(0xF8006134, 0x000FFFFFU, 0x0002E81FU),
>>> @@ -140,7 +140,7 @@ static unsigned long ps7_ddr_init_data_3_0[] = {
>>> EMIT_MASKWRITE(0xF80062B0, 0x003FFFFFU, 0x00005125U),
>>> EMIT_MASKWRITE(0xF80062B4, 0x0003FFFFU, 0x000012A8U),
>>> EMIT_MASKPOLL(0xF8000B74, 0x00002000U),
>>> - EMIT_MASKWRITE(0xF8006000, 0x0001FFFFU, 0x00000081U),
>>> + EMIT_MASKWRITE(0xF8006000, 0x0001FFFFU, 0x00000085U),
>>> EMIT_MASKPOLL(0xF8006054, 0x00000007U),
>>> EMIT_EXIT(),
>>> };
>>> diff --git a/board/topic/zynq/zynq-topic-miamilite/ps7_regs.txt b/board/topic/zynq/zynq-topic-miamilite/ps7_regs.txt
>>> index db6e642..08d5344 100644
>>> --- a/board/topic/zynq/zynq-topic-miamilite/ps7_regs.txt
>>> +++ b/board/topic/zynq/zynq-topic-miamilite/ps7_regs.txt
>>> @@ -1,5 +1,5 @@
>>> 0xF8000120 0x1F000200 // ARM_CLK_CTRL - divisor = 2 433 MHz (?)
>>> -0xf8000700 0x202
>>> +0xf8000700 0x200
>>> 0xf8000704 0x202
>>> 0xf8000708 0x202
>>> 0xf800070c 0x202
>>> @@ -8,11 +8,11 @@
>>> 0xf8000718 0x202
>>> 0xf800071c 0x200
>>> 0xf8000720 0x202
>>> -0xf8000724 0x202
>>> -0xf8000728 0x202
>>> -0xf800072c 0x202
>>> -0xf8000730 0x202
>>> -0xf8000734 0x202
>>> +0xf8000724 0x200
>>> +0xf8000728 0x200
>>> +0xf800072c 0x200
>>> +0xf8000730 0x200
>>> +0xf8000734 0x200
>>> 0xf8000738 0x12e1
>>> 0xf800073c 0x12e0
>>> 0xf8000740 0x1200
>>> @@ -58,4 +58,4 @@
>>> 0xF800014C 0x00000621 // LQSPI_CLK_CTRL - ARMPLL/6 (200 MHz)
>>> 0xE000D000 0x800238C1 // QSPI config - divide-by-2
>>> 0xE000D038 0x00000020 // QSPI loopback - internal, 0 delay
>>> -0xE000D0A0 0xE2FF06EB // LQSPI_CFG - Quad read, dual flash
>>> +0xE000D0A0 0x82FF04EB // LQSPI_CFG - QIOREAD mode, Numonyx/Micron
>>> diff --git a/include/configs/topic_miami.h b/include/configs/topic_miami.h
>>> index f14c4ee..c32c63c 100644
>>> --- a/include/configs/topic_miami.h
>>> +++ b/include/configs/topic_miami.h
>>> @@ -57,9 +57,12 @@
>>> /* Setup proper boot sequences for Miami boards */
>>>
>>> #if defined(CONFIG_USB)
>>> +# ifndef ENV_USB_RESET
>>> +# define ENV_USB_RESET "i2c dev 1 && i2c mw 41 1 ff && i2c mw 41 3 fe && "\
>>> + "i2c mw 41 1 fe && i2c mw 41 1 ff"
>>> +# endif
>>> # define EXTRA_ENV_USB \
>>> - "usbreset=i2c dev 1 && i2c mw 41 1 ff && i2c mw 41 3 fe && "\
>>> - "i2c mw 41 1 fe && i2c mw 41 1 ff\0" \
>>> + "usbreset=" ENV_USB_RESET "\0" \
>>> "usbboot=run usbreset && if usb start; then " \
>>> "echo Booting from USB... && " \
>>> "if load usb 0 0x1900000 ${bootscript}; then "\
>>> diff --git a/include/configs/topic_miamilite.h b/include/configs/topic_miamilite.h
>>> new file mode 100644
>>> index 0000000..7ec48d4
>>> --- /dev/null
>>> +++ b/include/configs/topic_miamilite.h
>>> @@ -0,0 +1,11 @@
>>> +/*
>>> + * (C) Copyright 2017 Topic Embedded Products
>>> + *
>>> + * Configuration for Miami Lite Zynq Evaluation and Development Board
>>> + *
>>> + * SPDX-License-Identifier: GPL-2.0+
>>> + */
>>> +
>>> +/* USB reset is on GPIO signal instead of expander */
>>> +#define ENV_USB_RESET "gpio clear 0 && gpio set 0"
>>> +#include "topic_miami.h"
>>>
>> I would prefer if you can use CONFIG_SYS_EXTRA_OPTIONS
>> and do not create additional file just for this.
>>
>> Just use any GPIO_USB_RESET or similar
>>
>> #if !defined()
>> expander
>> #else
>> gpio
>> #endif
>
> I was implementing this, but in README.kconfig it was stated that:
> ... Eventually CONFIG_SYS_EXTRA_OPTIONS will go away.
> CONFIG_SYS_EXTRA_OPTIONS should not be used for new boards...
>
> I haven't yet been able to come up with a solution that doesn't require an
> extra header file.
right now you have an option to write a driver for it. Is it any
i2c-gpio controller on the board for that?
Thanks,
Michal
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