arm: add support for SoC s5p4418 (cpu) / nanopi2 board

Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- SPL not supported yet --> no spl-dir in arch/arm/cpu/armv7/s5p4418/.
  Appropriate line in Makefile removed.
- cpu.c: '#include <cpu_func.h>' added.
- arch/arm/cpu/armv7/s5p4418/u-boot.lds removed, is not required
  anylonger.
- "obj-$(CONFIG_ARCH_NEXELL) += s5p-common/" added to
  arch/arm/cpu/armv7/Makefile since s5p-common/pwm.c is used instead
  of drivers/pwm/pwm-nexell.c.
- s5p4418.dtsi: '#include "../../../include/generated/autoconf.h"'
  removed, is not necessary, error at out-of-tree building.
  '#ifdef CONFIG_CPU_NXP4330'-blocks (2x) removed. Some minor changes
  regarding mmc. 'u-boot,dm-pre-reloc' added to dp0 because of added
  DM_VIDEO support.
- board/s5p4418/ renamed to board/friendlyarm/
- All s5p4418-boards except nanopi2 removed because there is no
  possibility to test the other boards.
- Kconfig: Changes to have a structure like mach-bcm283x (RaspberryPi),
  e.g. "config ..." entries moved from/to other Kconfig.
- "CONFIG_" removed from several s5p4418/nanopi2 specific defines
  because the appropriate values do not need to be configurable.
- nanopi2/board.c: All getenv(), getenv_ulong(), setenv() and saveenv()
  renamed to env_get(), env_get_ulong(), env_set() and env_save(),
  respectively. MACH_TYPE_S5P4418 is not defined anymore, therefore
  appropriate code removed (not necessary for DT-kernels).
- nanopi2/onewire.c: All crc8() renamed to crc8_ow() because crc8() is
  already defined in lib/crc8.c (with different parameters).
- dts: "nexell,s5pxx18-i2c" used instead of "i2c-gpio", i2c0 and
  i2c1 added. gmac-, ehci- and dwc2otg-entries removed because the
  appropriate functionality is not supported yet. New mmc-property
  "mmcboost" added.
  s5p4418-pinctrl.dtsi: gmac-entries removed, mmc- and i2c-entries
  added.
- '#ifdef CONFIG...' changed to 'if (IS_ENABLED(CONFIG...))' where
  possible (and similar).

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
This commit is contained in:
Stefan Bosch 2020-07-10 19:07:37 +02:00 committed by Tom Rini
parent e1e96ba6a2
commit d1611086e0
18 changed files with 2421 additions and 0 deletions

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@ -42,3 +42,5 @@ obj-$(CONFIG_RMOBILE) += rmobile/
obj-$(if $(filter stv0991,$(SOC)),y) += stv0991/
obj-$(CONFIG_ARCH_SUNXI) += sunxi/
obj-$(CONFIG_VF610) += vf610/
obj-$(CONFIG_ARCH_S5P4418) += s5p4418/
obj-$(CONFIG_ARCH_NEXELL) += s5p-common/

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@ -0,0 +1,6 @@
# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2016 Nexell
# Hyunseok, Jung <hsjung@nexell.co.kr>
obj-y += cpu.o

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@ -0,0 +1,121 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Nexell
* Hyunseok, Jung <hsjung@nexell.co.kr>
*/
#include <common.h>
#include <command.h>
#include <asm/system.h>
#include <asm/cache.h>
#include <asm/sections.h>
#include <asm/io.h>
#include <asm/arch/nexell.h>
#include <asm/arch/clk.h>
#include <asm/arch/reset.h>
#include <asm/arch/tieoff.h>
#include <cpu_func.h>
#include <linux/delay.h>
DECLARE_GLOBAL_DATA_PTR;
#ifndef CONFIG_ARCH_CPU_INIT
#error must be define the macro "CONFIG_ARCH_CPU_INIT"
#endif
void s_init(void)
{
}
static void cpu_soc_init(void)
{
/*
* NOTE> ALIVE Power Gate must enable for Alive register access.
* must be clear wfi jump address
*/
writel(1, ALIVEPWRGATEREG);
writel(0xFFFFFFFF, SCR_ARM_SECOND_BOOT);
/* write 0xf0 on alive scratchpad reg for boot success check */
writel(readl(SCR_SIGNAGURE_READ) | 0xF0, (SCR_SIGNAGURE_SET));
/* set l2 cache tieoff */
nx_tieoff_set(NX_TIEOFF_CORTEXA9MP_TOP_QUADL2C_L2RET1N_0, 1);
nx_tieoff_set(NX_TIEOFF_CORTEXA9MP_TOP_QUADL2C_L2RET1N_1, 1);
}
#ifdef CONFIG_PL011_SERIAL
static void serial_device_init(void)
{
char dev[10];
int id;
sprintf(dev, "nx-uart.%d", CONFIG_CONS_INDEX);
id = RESET_ID_UART0 + CONFIG_CONS_INDEX;
struct clk *clk = clk_get((const char *)dev);
/* reset control: Low active ___|--- */
nx_rstcon_setrst(id, RSTCON_ASSERT);
udelay(10);
nx_rstcon_setrst(id, RSTCON_NEGATE);
udelay(10);
/* set clock */
clk_disable(clk);
clk_set_rate(clk, CONFIG_PL011_CLOCK);
clk_enable(clk);
}
#endif
int arch_cpu_init(void)
{
flush_dcache_all();
cpu_soc_init();
clk_init();
if (IS_ENABLED(CONFIG_PL011_SERIAL))
serial_device_init();
return 0;
}
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
{
return 0;
}
#endif
void reset_cpu(ulong ignored)
{
void *clkpwr_reg = (void *)PHY_BASEADDR_CLKPWR;
const u32 sw_rst_enb_bitpos = 3;
const u32 sw_rst_enb_mask = 1 << sw_rst_enb_bitpos;
const u32 sw_rst_bitpos = 12;
const u32 sw_rst_mask = 1 << sw_rst_bitpos;
int pwrcont = 0x224;
int pwrmode = 0x228;
u32 read_value;
read_value = readl((void *)(clkpwr_reg + pwrcont));
read_value &= ~sw_rst_enb_mask;
read_value |= 1 << sw_rst_enb_bitpos;
writel(read_value, (void *)(clkpwr_reg + pwrcont));
writel(sw_rst_mask, (void *)(clkpwr_reg + pwrmode));
}
void enable_caches(void)
{
/* Enable D-cache. I-cache is already enabled in start.S */
dcache_enable();
}
#if defined(CONFIG_ARCH_MISC_INIT)
int arch_misc_init(void)
{
return 0;
}
#endif /* CONFIG_ARCH_MISC_INIT */

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@ -147,6 +147,9 @@ dtb-$(CONFIG_ROCKCHIP_RV1108) += \
rv1108-elgin-r1.dtb \
rv1108-evb.dtb
dtb-$(CONFIG_ARCH_S5P4418) += \
s5p4418-nanopi2.dtb
dtb-$(CONFIG_ARCH_MESON) += \
meson-gxbb-nanopi-k2.dtb \
meson-gxbb-odroidc2.dtb \

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@ -0,0 +1,110 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2020 Stefan Bosch <stefan_b@posteo.net>
*
* (C) Copyright 2017 FriendlyElec Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*
* (C) Copyright 2016 Nexell
* Youngbok, Park <park@nexell.co.kr>
*/
/dts-v1/;
#include "s5p4418.dtsi"
/ {
model = "FriendlyElec boards based on Nexell s5p4418";
cpu-model = "S5p4418";
compatible = "friendlyelec,nanopi2",
"nexell,s5p4418";
aliases {
mmc0 = "/mmc@c0069000";
mmc1 = "/mmc@c0062000";
i2c0 = "/i2c@c00a4000";
i2c1 = "/i2c@c00a5000";
i2c2 = "/i2c@c00a6000";
};
mmc0:mmc@c0062000 {
frequency = <50000000>;
drive_dly = <0x0>;
drive_shift = <0x03>;
sample_dly = <0x00>;
sample_shift = <0x02>;
mmcboost = <0>;
status = "okay";
};
mmc2:mmc@c0069000 {
frequency = <50000000>;
drive_dly = <0x0>;
drive_shift = <0x03>;
sample_dly = <0x00>;
sample_shift = <0x02>;
mmcboost = <0>;
status = "okay";
};
/* NanoPi2: Header "CON2", NanoPC-T2: EEPROM (MAC-Addr.) and Audio */
i2c0:i2c@c00a4000 {
status ="okay";
};
/* NanoPi2: Header "CON2" and HDMI, NanoPC-T2: HDMI */
i2c1:i2c@c00a5000 {
status ="okay";
};
/* NanoPi2: LCD interface, NanoPC-T2: LCD, LVDS and MIPI interfaces */
i2c2:i2c@c00a6000 {
status ="okay";
};
dp0:dp@c0102800 {
status = "okay";
module = <0>;
lcd-type = "lvds";
dp-device {
format = <0>; /* 0:VESA, 1:JEIDA */
};
dp-sync {
h_active_len = <1024>;
h_front_porch = <84>;
h_back_porch = <84>;
h_sync_width = <88>;
h_sync_invert = <0>;
v_active_len = <600>;
v_front_porch = <10>;
v_back_porch = <10>;
v_sync_width = <20>;
v_sync_invert = <0>;
};
dp-ctrl {
clk_src_lv0 = <3>;
clk_div_lv0 = <16>;
clk_src_lv1 = <7>;
clk_div_lv1 = <1>;
out_format = <2>;
};
dp-planes {
layer_top {
screen_width = <1024>;
screen_height = <600>;
back_color = <0x0>;
};
layer_1 { /* RGB 1 */
width = <1024>;
height = <600>;
format = <0x06530000>;
pixel_byte = <4>;
};
};
};
};

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@ -0,0 +1,135 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Nexell's s5p6818 SoC pin-mux and pin-config device tree source
*
* (C) Copyright 2020 Stefan Bosch <stefan_b@posteo.net>
*
* Copyright (C) 2016 Nexell Co., Ltd.
* http://www.nexell.co.kr
*
* Nexell's s5p6818 SoC pin-mux and pin-config options are listed as
* device tree nodes in this file.
*/
pinctrl@C0010000 {
/*
* values for "pin-pull":
* pulldown resistor = 0
* pullup = 1
* no pullup/down = 2
*/
/* MMC */
mmc0_clk: mmc0-clk {
pins = "gpioa-29";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <2>;
};
mmc0_cmd: mmc0-cmd {
pins = "gpioa-31";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <1>;
};
mmc0_bus4: mmc0-bus-width4 {
pins = "gpiob-1, gpiob-3, gpiob-5, gpiob-7";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <1>;
};
mmc1_clk: mmc1-clk {
pins = "gpiod-22";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <2>;
};
mmc1_cmd: mmc1-cmd {
pins = "gpiod-23";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <1>;
};
mmc1_bus4: mmc1-bus-width4 {
pins = "gpiod-24, gpiod-25, gpiod-26, gpiod-27";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <1>;
};
mmc2_clk: mmc2-clk {
pins = "gpioc-18";
pin-function = <2>;
pin-pull = <2>;
pin-strength = <2>;
};
mmc2_cmd: mmc2-cmd {
pins = "gpioc-19";
pin-function = <2>;
pin-pull = <2>;
pin-strength = <1>;
};
mmc2_bus4: mmc2-bus-width4 {
pins = "gpioc-20, gpioc-21, gpioc-22, gpioc-23";
pin-function = <2>;
pin-pull = <2>;
pin-strength = <1>;
};
mmc2_bus8: mmc2-bus-width8 {
nexell,pins = "gpioe-21", "gpioe-22", "gpioe-23", "gpioe-24";
pin-function = <2>;
pin-pull = <2>;
pin-strength = <1>;
};
/* I2C */
i2c0_sda:i2c0-sda {
pins = "gpiod-3";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <0>;
};
i2c0_scl:i2c0-scl {
pins = "gpiod-2";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <0>;
};
i2c1_sda:i2c1-sda {
pins = "gpiod-5";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <0>;
};
i2c1_scl:i2c1-scl {
pins = "gpiod-4";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <0>;
};
i2c2_sda:i2c2-sda {
pins = "gpiod-7";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <0>;
};
i2c2_scl:i2c2-scl {
pins = "gpiod-6";
pin-function = <1>;
pin-pull = <2>;
pin-strength = <0>;
};
};

170
arch/arm/dts/s5p4418.dtsi Normal file
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@ -0,0 +1,170 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2020 Stefan Bosch <stefan_b@posteo.net>
*
* (C) Copyright 2016 Nexell
* Youngbok, Park <park@nexell.co.kr>
*
*/
#include "skeleton.dtsi"
/ {
#include "s5p4418-pinctrl.dtsi"
aliases {
mmc0 = &mmc0;
mmc1 = &mmc1;
mmc2 = &mmc2;
gmac = "/ethernet@c0060000";
};
mmc2:mmc@c0069000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,nexell-dwmmc";
reg = <0xc0069000 0x1000>;
bus-width = <4>;
index = <2>;
max-frequency = <50000000>;
pinctrl-names = "default";
pinctrl-0 = <&mmc2_clk>, <&mmc2_cmd>, <&mmc2_bus4>;
status = "disabled";
};
mmc1:mmc@c0068000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,nexell-dwmmc";
reg = <0xc0068000 0x1000>;
bus-width = <4>;
index = <1>;
max-frequency = <50000000>;
pinctrl-names = "default";
pinctrl-0 = <&mmc1_clk>, <&mmc1_cmd>, <&mmc1_bus4>;
status = "disabled";
};
mmc0:mmc@c0062000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,nexell-dwmmc";
reg = <0xc0062000 0x1000>;
bus-width = <4>;
index = <0>;
max-frequency = <50000000>;
pinctrl-names = "default";
pinctrl-0 = <&mmc0_clk>, <&mmc0_cmd>, <&mmc0_bus4>;
status = "disabled";
};
i2c0:i2c@c00a4000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,s5pxx18-i2c";
reg = <0xc00a4000 0x100>;
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c0_sda>, <&i2c0_scl>;
status ="disabled";
};
i2c1:i2c@c00a5000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,s5pxx18-i2c";
reg = <0xc00a5000 0x100>;
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c1_sda>, <&i2c1_scl>;
status ="disabled";
};
i2c2:i2c@c00a6000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,s5pxx18-i2c";
reg = <0xc00a6000 0x100>;
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c2_sda>, <&i2c2_scl>;
status ="disabled";
};
dp0:dp@c0102800 {
compatible = "nexell,nexell-display";
reg = <0xc0102800 0x100>;
index = <0>;
u-boot,dm-pre-reloc;
status = "disabled";
};
dp1:dp@c0102c00 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "nexell,nexell-display";
reg = <0xc0102c00 0x100>;
index = <1>;
status = "disabled";
};
gpio_a:gpio@c001a000 {
compatible = "nexell,nexell-gpio";
reg = <0xc001a000 0x00000010>;
altr,gpio-bank-width = <32>;
gpio-bank-name = "gpio_a";
gpio-controller;
#gpio-cells = <2>;
};
gpio_b:gpio@c001b000 {
compatible = "nexell,nexell-gpio";
reg = <0xc001b000 0x00000010>;
altr,gpio-bank-width = <32>;
gpio-bank-name = "gpio_b";
gpio-controller;
#gpio-cells = <2>;
};
gpio_c:gpio@c001c000 {
compatible = "nexell,nexell-gpio";
reg = <0xc001c000 0x00000010>;
nexell,gpio-bank-width = <32>;
gpio-bank-name = "gpio_c";
gpio-controller;
#gpio-cells = <2>;
};
gpio_d:gpio@c001d000 {
compatible = "nexell,nexell-gpio";
reg = <0xc001d000 0x00000010>;
nexell,gpio-bank-width = <32>;
gpio-bank-name = "gpio_d";
gpio-controller;
#gpio-cells = <2>;
};
gpio_e:gpio@c001e000 {
compatible = "nexell,nexell-gpio";
reg = <0xc001e000 0x00000010>;
nexell,gpio-bank-width = <32>;
gpio-bank-name = "gpio_e";
gpio-controller;
#gpio-cells = <2>;
};
gpio_alv:gpio@c0010800 {
compatible = "nexell,nexell-gpio";
reg = <0xc0010800 0x00000010>;
nexell,gpio-bank-width = <32>;
gpio-bank-name = "gpio_alv";
gpio-controller;
#gpio-cells = <2>;
};
pinctrl@C0010000 {
compatible = "nexell,s5pxx18-pinctrl";
reg = <0xc0010000 0xf000>;
u-boot,dm-pre-reloc;
};
};

37
board/friendlyarm/Kconfig Normal file
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@ -0,0 +1,37 @@
choice
prompt "LCD backlight control"
optional
default S5P4418_ONEWIRE
config S5P4418_ONEWIRE
bool "I2C / 1-Wire"
help
This enables LCD-Backlight control for FriendlyARM LCD-panels.
I2C is used if available, otherwise 1-Wire is used.
config PWM_NX
bool "PWM"
help
This enables LCD-Backlight control via PWM.
endchoice
config ROOT_DEV
int "ROOT_DEV"
help
Environment variable rootdev is set to this value if env. var. firstboot
does not exist. Otherwise rootdev is set to the MMC boot device. rootdev
determines (together with env. var. bootpart) where the OS (linux) is
booted from.
config BOOT_PART
int "BOOT_PART"
help
Environment variable bootpart is set to this value. bootpart determines
(together with env. var. rootdev) where the OS (linux) is booted from.
config ROOT_PART
int "ROOT_PART"
help
Environment variable rootpart is set to this value.
source "board/friendlyarm/nanopi2/Kconfig"

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@ -0,0 +1,12 @@
if TARGET_NANOPI2
config SYS_BOARD
default "nanopi2"
config SYS_VENDOR
default "friendlyarm"
config SYS_CONFIG_NAME
default "s5p4418_nanopi2"
endif

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@ -0,0 +1,7 @@
NANOPI2 BOARD
NANOPC-T2 BOARD
M: Stefan Bosch <stefan_b@posteo.net>
S: Maintained
F: board/s5p4418/nanopi2/
F: include/configs/s5p4418_nanopi2.h
F: configs/s5p4418_nanopi2_defconfig

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@ -0,0 +1,7 @@
# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2016 Nexell
# Hyunseok, Jung <hsjung@nexell.co.kr>
obj-y := board.o hwrev.o lcds.o
obj-$(CONFIG_S5P4418_ONEWIRE) += onewire.o

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@ -0,0 +1,575 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*/
#include <config.h>
#include <common.h>
#include <command.h>
#include <fdt_support.h>
#include <log.h>
#ifdef CONFIG_PWM_NX
#include <pwm.h>
#endif
#include <asm/io.h>
#include <asm/arch/nexell.h>
#include <asm/arch/nx_gpio.h>
#include <asm/arch/display.h>
#include <asm/arch/display_dev.h>
#include <u-boot/md5.h>
#include <linux/stringify.h>
#include "hwrev.h"
#include "onewire.h"
#include "nxp-fb.h"
#include <env_internal.h> /* for env_save() */
#include <asm/mach-types.h>
DECLARE_GLOBAL_DATA_PTR;
enum gpio_group {
gpio_a, gpio_b, gpio_c, gpio_d, gpio_e,
};
#ifdef CONFIG_PWM_NX
struct pwm_device {
int grp;
int bit;
int io_fn;
};
static inline void bd_pwm_config_gpio(int ch)
{
struct pwm_device pwm_dev[] = {
[0] = { .grp = gpio_d, .bit = 1, .io_fn = 0 },
[1] = { .grp = gpio_c, .bit = 13, .io_fn = 1 },
[2] = { .grp = gpio_c, .bit = 14, .io_fn = 1 },
[3] = { .grp = gpio_d, .bit = 0, .io_fn = 0 },
};
int gp = pwm_dev[ch].grp;
int io = pwm_dev[ch].bit;
/* pwm backlight OFF: HIGH, ON: LOW */
nx_gpio_set_pad_function(gp, io, pwm_dev[ch].io_fn);
nx_gpio_set_output_value(gp, io, 1);
nx_gpio_set_output_enable(gp, io, 1);
}
#endif
static void bd_backlight_off(void)
{
#ifdef CONFIG_S5P4418_ONEWIRE
onewire_set_backlight(0);
#elif defined(BACKLIGHT_CH)
bd_pwm_config_gpio(BACKLIGHT_CH);
#endif
}
static void bd_backlight_on(void)
{
#ifdef CONFIG_S5P4418_ONEWIRE
onewire_set_backlight(127);
#elif defined(BACKLIGHT_CH)
/* pwm backlight ON: HIGH, ON: LOW */
pwm_init(BACKLIGHT_CH,
BACKLIGHT_DIV, BACKLIGHT_INV);
pwm_config(BACKLIGHT_CH,
TO_DUTY_NS(BACKLIGHT_DUTY, BACKLIGHT_HZ),
TO_PERIOD_NS(BACKLIGHT_HZ));
#endif
}
static void bd_lcd_config_gpio(void)
{
int i;
for (i = 0; i < 28; i++) {
nx_gpio_set_pad_function(gpio_a, i, 1);
nx_gpio_set_drive_strength(gpio_a, i, 0);
nx_gpio_set_pull_mode(gpio_a, i, 2);
}
nx_gpio_set_drive_strength(gpio_a, 0, 1);
}
/* DEFAULT mmc dev for eMMC boot (dwmmc.2) */
static int mmc_boot_dev;
int board_mmc_bootdev(void)
{
return mmc_boot_dev;
}
/* call from common/env_mmc.c */
int mmc_get_env_dev(void)
{
return mmc_boot_dev;
}
#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard(void)
{
printf("Board: %s\n", get_board_name());
return 0;
}
#endif
int nx_display_fixup_dp(struct nx_display_dev *dp)
{
struct nxp_lcd *lcd = bd_get_lcd();
enum lcd_format fmt = bd_get_lcd_format();
struct nxp_lcd_timing *timing = &lcd->timing;
struct dp_sync_info *sync = &dp->sync;
struct dp_plane_info *plane = &dp->planes[0];
int i;
u32 clk = 800000000;
u32 div;
sync->h_active_len = lcd->width;
sync->h_sync_width = timing->h_sw;
sync->h_back_porch = timing->h_bp;
sync->h_front_porch = timing->h_fp;
sync->h_sync_invert = !lcd->polarity.inv_hsync;
sync->v_active_len = lcd->height;
sync->v_sync_width = timing->v_sw;
sync->v_back_porch = timing->v_bp;
sync->v_front_porch = timing->v_fp;
sync->v_sync_invert = !lcd->polarity.inv_vsync;
/* calculates pixel clock */
div = timing->h_sw + timing->h_bp + timing->h_fp + lcd->width;
div *= timing->v_sw + timing->v_bp + timing->v_fp + lcd->height;
div *= lcd->freq ? : 60;
clk /= div;
dp->ctrl.clk_div_lv0 = clk;
dp->ctrl.clk_inv_lv0 = lcd->polarity.rise_vclk;
dp->top.screen_width = lcd->width;
dp->top.screen_height = lcd->height;
for (i = 0; i < dp->top.plane_num; i++, plane++) {
if (plane->enable) {
plane->width = lcd->width;
plane->height = lcd->height;
}
}
/* initialize display device type */
if (fmt == LCD_RGB) {
dp->dev_type = DP_DEVICE_RGBLCD;
} else if (fmt == LCD_HDMI) {
struct dp_hdmi_dev *dev = (struct dp_hdmi_dev *)dp->device;
dp->dev_type = DP_DEVICE_HDMI;
if (lcd->width == 1920 && lcd->height == 1080)
dev->preset = 1;
else
dev->preset = 0;
} else {
struct dp_lvds_dev *dev = (struct dp_lvds_dev *)dp->device;
dp->dev_type = DP_DEVICE_LVDS;
dev->lvds_format = (fmt & 0x3);
}
return 0;
}
/* --------------------------------------------------------------------------
* initialize board status.
*/
#define MMC_BOOT_CH0 (0)
#define MMC_BOOT_CH1 (1 << 3)
#define MMC_BOOT_CH2 (1 << 19)
static void bd_bootdev_init(void)
{
unsigned int rst = readl(PHY_BASEADDR_CLKPWR + SYSRSTCONFIG);
rst &= (1 << 19) | (1 << 3);
if (rst == MMC_BOOT_CH0) {
/* mmc dev 1 for SD boot */
mmc_boot_dev = 1;
}
}
#ifdef CONFIG_S5P4418_ONEWIRE
static void bd_onewire_init(void)
{
unsigned char lcd;
unsigned short fw_ver;
onewire_init();
onewire_get_info(&lcd, &fw_ver);
}
#endif
static void bd_lcd_init(void)
{
struct nxp_lcd *cfg;
int id = -1;
int ret;
#ifdef CONFIG_S5P4418_ONEWIRE
id = onewire_get_lcd_id();
/* -1: onwire probe failed
* 0: bad
* >0: identified
*/
#endif
ret = bd_setup_lcd_by_id(id);
if (id <= 0 || ret != id) {
printf("Panel: N/A (%d)\n", id);
bd_setup_lcd_by_name("HDMI720P60");
} else {
printf("Panel: %s\n", bd_get_lcd_name());
cfg = bd_get_lcd();
if (cfg->gpio_init)
cfg->gpio_init();
}
}
static int mac_read_from_generic_eeprom(u8 *addr)
{
return -1;
}
static void make_ether_addr(u8 *addr)
{
u32 hash[20];
#define ETHER_MAC_TAG "ethmac"
memset(hash, 0, sizeof(hash));
memcpy(hash + 12, ETHER_MAC_TAG, sizeof(ETHER_MAC_TAG));
hash[4] = readl(PHY_BASEADDR_ECID + 0x00);
hash[5] = readl(PHY_BASEADDR_ECID + 0x04);
hash[6] = readl(PHY_BASEADDR_ECID + 0x08);
hash[7] = readl(PHY_BASEADDR_ECID + 0x0c);
md5((unsigned char *)&hash[4], 64, (unsigned char *)hash);
hash[0] ^= hash[2];
hash[1] ^= hash[3];
memcpy(addr, (char *)hash, 6);
addr[0] &= 0xfe; /* clear multicast bit */
addr[0] |= 0x02;
}
static void set_ether_addr(void)
{
unsigned char mac[6];
char ethaddr[20];
int ret;
if (env_get("ethaddr"))
return;
ret = mac_read_from_generic_eeprom(mac);
if (ret < 0)
make_ether_addr(mac);
sprintf(ethaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
if (!ret)
printf("MAC: [%s]\n", ethaddr);
env_set("ethaddr", ethaddr);
}
#ifdef CONFIG_REVISION_TAG
static void set_board_rev(void)
{
char info[64] = {0, };
snprintf(info, ARRAY_SIZE(info), "%02x", get_board_rev());
env_set("board_rev", info);
}
#endif
static void set_dtb_name(void)
{
char info[64] = {0, };
snprintf(info, ARRAY_SIZE(info),
"s5p4418-nanopi2-rev%02x.dtb", get_board_rev());
env_set("dtb_name", info);
}
static void bd_update_env(void)
{
char *lcdtype = env_get("lcdtype");
char *lcddpi = env_get("lcddpi");
char *bootargs = env_get("bootargs");
const char *name;
char *p = NULL;
int rootdev = board_mmc_bootdev();
int need_save = 0;
#define CMDLINE_LCD " lcd="
char cmdline[CONFIG_SYS_CBSIZE];
int n = 1;
if (rootdev != CONFIG_ROOT_DEV && !env_get("firstboot")) {
env_set_ulong("rootdev", rootdev);
env_set("firstboot", "0");
need_save = 1;
}
if (lcdtype) {
/* Setup again as user specified LCD in env */
bd_setup_lcd_by_name(lcdtype);
}
name = bd_get_lcd_name();
if (bootargs)
n = strlen(bootargs); /* isn't 0 for NULL */
else
cmdline[0] = '\0';
if ((n + strlen(name) + sizeof(CMDLINE_LCD)) > sizeof(cmdline)) {
printf("Error: `bootargs' is too large (%d)\n", n);
goto __exit;
}
if (bootargs) {
p = strstr(bootargs, CMDLINE_LCD);
if (p) {
n = (p - bootargs);
p += strlen(CMDLINE_LCD);
}
strncpy(cmdline, bootargs, n);
}
/* add `lcd=NAME,NUMdpi' */
strncpy(cmdline + n, CMDLINE_LCD, strlen(CMDLINE_LCD));
n += strlen(CMDLINE_LCD);
strcpy(cmdline + n, name);
n += strlen(name);
if (lcddpi) {
n += sprintf(cmdline + n, ",%sdpi", lcddpi);
} else {
int dpi = bd_get_lcd_density();
if (dpi > 0 && dpi < 600)
n += sprintf(cmdline + n, ",%ddpi", dpi);
}
/* copy remaining of bootargs */
if (p) {
p = strstr(p, " ");
if (p) {
strcpy(cmdline + n, p);
n += strlen(p);
}
}
/* append `bootdev=2' */
#define CMDLINE_BDEV " bootdev="
if (rootdev > 0 && !strstr(cmdline, CMDLINE_BDEV))
n += sprintf(cmdline + n, "%s2", CMDLINE_BDEV);
/* finally, let's update uboot env & save it */
if (bootargs && strncmp(cmdline, bootargs, sizeof(cmdline))) {
env_set("bootargs", cmdline);
need_save = 1;
}
__exit:
if (need_save)
env_save();
}
/* --------------------------------------------------------------------------
* call from u-boot
*/
int board_early_init_f(void)
{
return 0;
}
int board_init(void)
{
bd_hwrev_init();
bd_base_rev_init();
bd_bootdev_init();
#ifdef CONFIG_S5P4418_ONEWIRE
bd_onewire_init();
#endif
bd_backlight_off();
bd_lcd_config_gpio();
bd_lcd_init();
if (IS_ENABLED(CONFIG_SILENT_CONSOLE))
gd->flags |= GD_FLG_SILENT;
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
bd_update_env();
#ifdef CONFIG_REVISION_TAG
set_board_rev();
#endif
set_dtb_name();
set_ether_addr();
if (IS_ENABLED(CONFIG_SILENT_CONSOLE))
gd->flags &= ~GD_FLG_SILENT;
bd_backlight_on();
printf("\n");
return 0;
}
#endif
#ifdef CONFIG_SPLASH_SOURCE
#include <splash.h>
static struct splash_location splash_locations[] = {
{
.name = "mmc_fs",
.storage = SPLASH_STORAGE_MMC,
.flags = SPLASH_STORAGE_FS,
.devpart = __stringify(CONFIG_ROOT_DEV) ":"
__stringify(CONFIG_BOOT_PART),
},
};
int splash_screen_prepare(void)
{
int err;
char *env_cmd = env_get("load_splash");
debug("%s()\n", __func__);
if (env_cmd) {
err = run_command(env_cmd, 0);
} else {
char devpart[64] = { 0, };
int bootpart = env_get_ulong("bootpart", 0, CONFIG_BOOT_PART);
int rootdev;
if (env_get("firstboot"))
rootdev = env_get_ulong("rootdev", 0, CONFIG_ROOT_DEV);
else
rootdev = board_mmc_bootdev();
snprintf(devpart, ARRAY_SIZE(devpart), "%d:%d", rootdev,
bootpart);
splash_locations[0].devpart = devpart;
err = splash_source_load(splash_locations,
ARRAY_SIZE(splash_locations));
}
if (!err) {
char addr[64];
sprintf(addr, "0x%lx", gd->fb_base);
env_set("fb_addr", addr);
}
return err;
}
#endif
/* u-boot dram initialize */
int dram_init(void)
{
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
return 0;
}
/* u-boot dram board specific */
int dram_init_banksize(void)
{
#define SCR_USER_SIG6_READ (SCR_ALIVE_BASE + 0x0F0)
unsigned int reg_val = readl(SCR_USER_SIG6_READ);
/* set global data memory */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x00000100;
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = CONFIG_SYS_SDRAM_SIZE;
/* Number of Row: 14 bits */
if ((reg_val >> 28) == 14)
gd->bd->bi_dram[0].size -= 0x20000000;
/* Number of Memory Chips */
if ((reg_val & 0x3) > 1) {
gd->bd->bi_dram[1].start = 0x80000000;
gd->bd->bi_dram[1].size = 0x40000000;
}
return 0;
}
#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, struct bd_info *bd)
{
int nodeoff;
unsigned int rootdev;
unsigned int fb_addr;
if (board_mmc_bootdev() > 0) {
rootdev = fdt_getprop_u32_default(blob, "/board", "sdidx", 2);
if (rootdev) {
/* find or create "/chosen" node. */
nodeoff = fdt_find_or_add_subnode(blob, 0, "chosen");
if (nodeoff >= 0)
fdt_setprop_u32(blob, nodeoff, "linux,rootdev",
rootdev);
}
}
fb_addr = env_get_ulong("fb_addr", 0, 0);
if (fb_addr) {
nodeoff = fdt_path_offset(blob, "/reserved-memory");
if (nodeoff < 0)
return nodeoff;
nodeoff = fdt_add_subnode(blob, nodeoff, "display_reserved");
if (nodeoff >= 0) {
fdt32_t cells[2];
cells[0] = cpu_to_fdt32(fb_addr);
cells[1] = cpu_to_fdt32(0x800000);
fdt_setprop(blob, nodeoff, "reg", cells,
sizeof(cells[0]) * 2);
}
}
return 0;
}
#endif

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*/
#include <config.h>
#include <common.h>
#include <i2c.h>
#include <asm/io.h>
#include <asm/arch/nexell.h>
#include <asm/arch/nx_gpio.h>
/* Board revision list: <PCB3 | PCB2 | PCB1>
* 0b000 - NanoPi 2
* 0b001 - NanoPC-T2
* 0b010 - NanoPi S2
* 0b011 - Smart4418
* 0b100 - NanoPi Fire 2A
* 0b111 - NanoPi M2A
*
* Extented revision:
* 0b001 - Smart4418-SDK
*/
#define __IO_GRP 2 /* GPIO_C */
#define __IO_PCB1 26
#define __IO_PCB2 27
#define __IO_PCB3 25
static int pcb_rev = -1;
static int base_rev;
static void bd_hwrev_config_gpio(void)
{
int gpios[3][2] = {
{ __IO_PCB1, 1 },
{ __IO_PCB2, 1 },
{ __IO_PCB3, 1 },
};
int i;
/* gpio input mode, pull-down */
for (i = 0; i < 3; i++) {
nx_gpio_set_pad_function(__IO_GRP, gpios[i][0], gpios[i][1]);
nx_gpio_set_output_enable(__IO_GRP, gpios[i][0], 0);
nx_gpio_set_pull_mode(__IO_GRP, gpios[i][0], 0);
}
}
void bd_hwrev_init(void)
{
if (pcb_rev >= 0)
return;
bd_hwrev_config_gpio();
pcb_rev = nx_gpio_get_input_value(__IO_GRP, __IO_PCB1);
pcb_rev |= nx_gpio_get_input_value(__IO_GRP, __IO_PCB2) << 1;
pcb_rev |= nx_gpio_get_input_value(__IO_GRP, __IO_PCB3) << 2;
}
/* Get extended revision for SmartXX18 */
void bd_base_rev_init(void)
{
struct udevice *dev;
u8 val = 0;
if (pcb_rev != 0x3)
return;
#define PCA9536_I2C_BUS 2
#define PCA9636_I2C_ADDR 0x41
if (i2c_get_chip_for_busnum
(PCA9536_I2C_BUS, PCA9636_I2C_ADDR, 1, &dev))
return;
if (!dm_i2c_read(dev, 0, &val, 1))
base_rev = (val & 0xf);
}
/* To override __weak symbols */
u32 get_board_rev(void)
{
return (base_rev << 8) | pcb_rev;
}
const char *get_board_name(void)
{
bd_hwrev_init();
switch (pcb_rev) {
case 0:
return "NanoPi 2";
case 1:
return "NanoPC-T2";
case 2:
return "NanoPi S2";
case 3:
return "Smart4418";
case 4:
return "NanoPi Fire 2A";
case 7:
return "NanoPi M2A";
default:
return "s5p4418-X";
}
}

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/* SPDX-License-Identifier: GPL-2.0+
*
* Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*/
#ifndef __BD_HW_REV_H__
#define __BD_HW_REV_H__
extern void bd_hwrev_init(void);
extern void bd_base_rev_init(void);
extern u32 get_board_rev(void);
extern const char *get_board_name(void);
#endif /* __BD_HW_REV_H__ */

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2017 FriendlyARM (www.arm9.net)
*/
#include <config.h>
#include <common.h>
#include <errno.h>
#include <fdtdec.h>
#include <fdt_support.h>
#include <asm/io.h>
#include <asm/arch/nexell.h>
#include <asm/arch/display.h>
#include <asm/arch/nx_gpio.h>
#include "nxp-fb.h"
/*
* param @module_index for nx_gpio APIs and will be removed
* after support pinctrl
*/
#ifndef PAD_GPIO_A
#define PAD_GPIO_A 0
#endif
static inline void common_gpio_init(void)
{
/* PVCLK */
nx_gpio_set_fast_slew(PAD_GPIO_A, 0, 1);
}
static void s70_gpio_init(void)
{
int i;
/* PVCLK */
nx_gpio_set_drive_strength(PAD_GPIO_A, 0, 1);
/* RGB24 */
for (i = 1; i < 25; i++)
nx_gpio_set_drive_strength(PAD_GPIO_A, i, 2);
/* HS/VS/DE */
for (; i < 28; i++)
nx_gpio_set_drive_strength(PAD_GPIO_A, i, 1);
}
static void s702_gpio_init(void)
{
int i;
common_gpio_init();
nx_gpio_set_drive_strength(PAD_GPIO_A, 0, 2);
for (i = 1; i < 25; i++)
nx_gpio_set_drive_strength(PAD_GPIO_A, i, 0);
for (; i < 28; i++)
nx_gpio_set_drive_strength(PAD_GPIO_A, i, 1);
}
static void s430_gpio_init(void)
{
int i;
for (i = 0; i < 28; i++)
nx_gpio_set_drive_strength(PAD_GPIO_A, i, 1);
}
static void hd101_gpio_init(void)
{
int i;
common_gpio_init();
nx_gpio_set_drive_strength(PAD_GPIO_A, 0, 2);
for (i = 1; i < 25; i++)
nx_gpio_set_drive_strength(PAD_GPIO_A, i, 1);
nx_gpio_set_drive_strength(PAD_GPIO_A, 27, 1);
}
static void hd700_gpio_init(void)
{
hd101_gpio_init();
}
/* NXP display configs for supported LCD */
static struct nxp_lcd wxga_hd700 = {
.width = 800,
.height = 1280,
.p_width = 94,
.p_height = 151,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 20,
.h_bp = 20,
.h_sw = 24,
.v_fp = 4,
.v_fpe = 1,
.v_bp = 4,
.v_bpe = 1,
.v_sw = 8,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 0,
.inv_vsync = 0,
.inv_vden = 0,
},
.gpio_init = hd700_gpio_init,
};
static struct nxp_lcd wvga_s70 = {
.width = 800,
.height = 480,
.p_width = 155,
.p_height = 93,
.bpp = 24,
.freq = 61,
.timing = {
.h_fp = 48,
.h_bp = 36,
.h_sw = 10,
.v_fp = 22,
.v_fpe = 1,
.v_bp = 15,
.v_bpe = 1,
.v_sw = 8,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
.gpio_init = s70_gpio_init,
};
static struct nxp_lcd wvga_s702 = {
.width = 800,
.height = 480,
.p_width = 155,
.p_height = 93,
.bpp = 24,
.freq = 61,
.timing = {
.h_fp = 44,
.h_bp = 26,
.h_sw = 20,
.v_fp = 22,
.v_fpe = 1,
.v_bp = 15,
.v_bpe = 1,
.v_sw = 8,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
.gpio_init = s702_gpio_init,
};
static struct nxp_lcd wvga_s70d = {
.width = 800,
.height = 480,
.p_width = 155,
.p_height = 93,
.bpp = 24,
.freq = 61,
.timing = {
.h_fp = 80,
.h_bp = 78,
.h_sw = 10,
.v_fp = 22,
.v_fpe = 1,
.v_bp = 24,
.v_bpe = 1,
.v_sw = 8,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
.gpio_init = s702_gpio_init,
};
static struct nxp_lcd wvga_w50 = {
.width = 800,
.height = 480,
.p_width = 108,
.p_height = 64,
.bpp = 24,
.freq = 61,
.timing = {
.h_fp = 40,
.h_bp = 40,
.h_sw = 48,
.v_fp = 20,
.v_fpe = 1,
.v_bp = 20,
.v_bpe = 1,
.v_sw = 12,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
.gpio_init = s70_gpio_init,
};
static struct nxp_lcd wvga_s430 = {
.width = 480,
.height = 800,
.p_width = 108,
.p_height = 64,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 64,
.h_bp = 0,
.h_sw = 16,
.v_fp = 32,
.v_fpe = 1,
.v_bp = 0,
.v_bpe = 1,
.v_sw = 16,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
.gpio_init = s430_gpio_init,
};
static struct nxp_lcd wsvga_w101 = {
.width = 1024,
.height = 600,
.p_width = 204,
.p_height = 120,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 40,
.h_bp = 40,
.h_sw = 200,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 8,
.v_bpe = 1,
.v_sw = 16,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd wsvga_x710 = {
.width = 1024,
.height = 600,
.p_width = 154,
.p_height = 90,
.bpp = 24,
.freq = 61,
.timing = {
.h_fp = 84,
.h_bp = 84,
.h_sw = 88,
.v_fp = 10,
.v_fpe = 1,
.v_bp = 10,
.v_bpe = 1,
.v_sw = 20,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
.gpio_init = hd101_gpio_init,
};
static struct nxp_lcd xga_a97 = {
.width = 1024,
.height = 768,
.p_width = 200,
.p_height = 150,
.bpp = 24,
.freq = 61,
.timing = {
.h_fp = 12,
.h_bp = 12,
.h_sw = 4,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 8,
.v_bpe = 1,
.v_sw = 4,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd xga_lq150 = {
.width = 1024,
.height = 768,
.p_width = 304,
.p_height = 228,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 12,
.h_bp = 12,
.h_sw = 40,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 8,
.v_bpe = 1,
.v_sw = 40,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd vga_l80 = {
.width = 640,
.height = 480,
.p_width = 160,
.p_height = 120,
.bpp = 32,
.freq = 60,
.timing = {
.h_fp = 35,
.h_bp = 53,
.h_sw = 73,
.v_fp = 3,
.v_fpe = 1,
.v_bp = 29,
.v_bpe = 1,
.v_sw = 6,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd wxga_bp101 = {
.width = 1280,
.height = 800,
.p_width = 218,
.p_height = 136,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 20,
.h_bp = 20,
.h_sw = 24,
.v_fp = 4,
.v_fpe = 1,
.v_bp = 4,
.v_bpe = 1,
.v_sw = 8,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd wxga_hd101 = {
.width = 1280,
.height = 800,
.p_width = 218,
.p_height = 136,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 16,
.h_bp = 16,
.h_sw = 30,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 8,
.v_bpe = 1,
.v_sw = 12,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 0,
.inv_vsync = 0,
.inv_vden = 0,
},
.gpio_init = hd101_gpio_init,
};
static struct nxp_lcd hvga_h43 = {
.width = 480,
.height = 272,
.p_width = 96,
.p_height = 54,
.bpp = 32,
.freq = 65,
.timing = {
.h_fp = 5,
.h_bp = 40,
.h_sw = 2,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 8,
.v_bpe = 1,
.v_sw = 2,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd hvga_p43 = {
.width = 480,
.height = 272,
.p_width = 96,
.p_height = 54,
.bpp = 32,
.freq = 65,
.timing = {
.h_fp = 5,
.h_bp = 40,
.h_sw = 2,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 9,
.v_bpe = 1,
.v_sw = 2,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct nxp_lcd qvga_w35 = {
.width = 320,
.height = 240,
.p_width = 70,
.p_height = 52,
.bpp = 16,
.freq = 65,
.timing = {
.h_fp = 4,
.h_bp = 70,
.h_sw = 4,
.v_fp = 4,
.v_fpe = 1,
.v_bp = 12,
.v_bpe = 1,
.v_sw = 4,
},
.polarity = {
.rise_vclk = 1,
.inv_hsync = 0,
.inv_vsync = 0,
.inv_vden = 0,
},
};
/* HDMI */
static struct nxp_lcd hdmi_def = {
.width = 1920,
.height = 1080,
.p_width = 480,
.p_height = 320,
.bpp = 24,
.freq = 60,
.timing = {
.h_fp = 12,
.h_bp = 12,
.h_sw = 4,
.v_fp = 8,
.v_fpe = 1,
.v_bp = 8,
.v_bpe = 1,
.v_sw = 4,
},
.polarity = {
.rise_vclk = 0,
.inv_hsync = 1,
.inv_vsync = 1,
.inv_vden = 0,
},
};
static struct hdmi_config {
char *name;
int width;
int height;
} bd_hdmi_config[] = {
{ "HDMI1080P60", 1920, 1080 },
{ "HDMI1080I60", 1920, 1080 },
{ "HDMI1080P30", 1920, 1080 },
{ "HDMI1080P50", 1920, 1080 },
{ "HDMI1080I50", 1920, 1080 },
{ "HDMI1080P60D", 960, 536 },
{ "HDMI1080I60D", 960, 536 },
{ "HDMI1080P30D", 960, 536 },
{ "HDMI1080P50D", 960, 536 },
{ "HDMI1080I50D", 960, 536 },
{ "HDMI720P60", 1280, 720 },
{ "HDMI720P60D", 640, 360 },
{ "HDMI720P50", 1280, 720 },
{ "HDMI720P50D", 640, 360 },
{ "HDMI576P16X9", 720, 576 },
{ "HDMI576P16X9D", 720, 576 },
{ "HDMI576P4X3", 720, 576 },
{ "HDMI576P4X3D", 720, 576 },
{ "HDMI480P16X9", 720, 480 },
{ "HDMI480P16X9D", 720, 480 },
{ "HDMI480P4X3", 720, 480 },
{ "HDMI480P4X3D", 720, 480 },
};
/* Try to guess LCD panel by kernel command line, or
* using *HD101* as default
*/
static struct {
int id;
char *name;
struct nxp_lcd *lcd;
int dpi;
int ctp;
enum lcd_format fmt;
} bd_lcd_config[] = {
{ 25, "HD101", &wxga_hd101, 0, 1, LCD_RGB },
{ 32, "HD101B", &wxga_hd101, 0, 1, LCD_RGB },
{ 18, "HD700", &wxga_hd700, 213, 1, LCD_RGB },
{ 30, "HD702", &wxga_hd700, 213, 1, LCD_RGB },
{ 33, "H70", &wxga_hd700, 213, 0, LCD_VESA },
{ 3, "S70", &wvga_s70, 128, 1, LCD_RGB },
{ 36, "S701", &wvga_s70, 128, 1, LCD_RGB },
{ 24, "S702", &wvga_s702, 128, 3, LCD_RGB },
{ 26, "S70D", &wvga_s70d, 128, 0, LCD_RGB },
{ 14, "H43", &hvga_h43, 0, 0, LCD_RGB },
{ 19, "P43", &hvga_p43, 0, 0, LCD_RGB },
{ 8, "W35", &qvga_w35, 0, 0, LCD_RGB },
{ 28, "X710", &wsvga_x710, 0, 1, LCD_RGB },
{ 31, "S430", &wvga_s430, 180, 1, LCD_RGB },
{ 4, "W50", &wvga_w50, 0, 0, LCD_RGB },
/* TODO: Testing */
{ 15, "W101", &wsvga_w101, 0, 1, LCD_RGB },
{ 5, "L80", &vga_l80, 0, 1, LCD_RGB },
{ -1, "A97", &xga_a97, 0, 0, LCD_RGB },
{ -1, "LQ150", &xga_lq150, 0, 1, LCD_RGB },
{ -1, "BP101", &wxga_bp101, 0, 1, LCD_RGB },
/* Pls keep it at last */
{ 128, "HDMI", &hdmi_def, 0, 0, LCD_HDMI },
};
static int lcd_idx;
int bd_setup_lcd_by_id(int id)
{
int i;
for (i = 0; i < ARRAY_SIZE(bd_lcd_config); i++) {
if (bd_lcd_config[i].id == id) {
lcd_idx = i;
break;
}
}
if (i >= ARRAY_SIZE(bd_lcd_config)) {
/* NOT found */
return -19;
}
return bd_lcd_config[i].id;
}
int bd_setup_lcd_by_name(char *str)
{
char *delim;
int i;
delim = strchr(str, ',');
if (delim)
*delim++ = '\0';
if (!strncasecmp("HDMI", str, 4)) {
struct hdmi_config *cfg = &bd_hdmi_config[0];
struct nxp_lcd *lcd;
lcd_idx = ARRAY_SIZE(bd_lcd_config) - 1;
lcd = bd_lcd_config[lcd_idx].lcd;
for (i = 0; i < ARRAY_SIZE(bd_hdmi_config); i++, cfg++) {
if (!strcasecmp(cfg->name, str)) {
lcd->width = cfg->width;
lcd->height = cfg->height;
bd_lcd_config[lcd_idx].name = cfg->name;
goto __ret;
}
}
}
for (i = 0; i < ARRAY_SIZE(bd_lcd_config); i++) {
if (!strcasecmp(bd_lcd_config[i].name, str)) {
lcd_idx = i;
break;
}
}
__ret:
return 0;
}
struct nxp_lcd *bd_get_lcd(void)
{
return bd_lcd_config[lcd_idx].lcd;
}
const char *bd_get_lcd_name(void)
{
return bd_lcd_config[lcd_idx].name;
}
enum lcd_format bd_get_lcd_format(void)
{
return bd_lcd_config[lcd_idx].fmt;
}
int bd_get_lcd_density(void)
{
return bd_lcd_config[lcd_idx].dpi;
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
int bd_fixup_lcd_fdt(void *blob, struct nxp_lcd *lcd)
{
return 0;
}
#endif

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/* SPDX-License-Identifier: GPL-2.0+
*
* Copyright (c) 2017 FriendlyARM (www.arm9.net)
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Header file for NXP Display Driver
*/
#ifndef __MACH_NXP_FB_H__
#define __MACH_NXP_FB_H__
/*
* struct nxp_lcd_polarity
* @rise_vclk: if 1, video data is fetched at rising edge
* @inv_hsync: if HSYNC polarity is inversed
* @inv_vsync: if VSYNC polarity is inversed
* @inv_vden: if VDEN polarity is inversed
*/
struct nxp_lcd_polarity {
int rise_vclk;
int inv_hsync;
int inv_vsync;
int inv_vden;
};
/*
* struct nxp_lcd_timing
* @h_fp: horizontal front porch
* @h_bp: horizontal back porch
* @h_sw: horizontal sync width
* @v_fp: vertical front porch
* @v_fpe: vertical front porch for even field
* @v_bp: vertical back porch
* @v_bpe: vertical back porch for even field
*/
struct nxp_lcd_timing {
int h_fp;
int h_bp;
int h_sw;
int v_fp;
int v_fpe;
int v_bp;
int v_bpe;
int v_sw;
};
/*
* struct nxp_lcd
* @width: horizontal resolution
* @height: vertical resolution
* @p_width: width of lcd in mm
* @p_height: height of lcd in mm
* @bpp: bits per pixel
* @freq: vframe frequency
* @timing: timing values
* @polarity: polarity settings
* @gpio_init: pointer to GPIO init function
*
*/
struct nxp_lcd {
int width;
int height;
int p_width;
int p_height;
int bpp;
int freq;
struct nxp_lcd_timing timing;
struct nxp_lcd_polarity polarity;
void (*gpio_init)(void);
};
/**
* Public interfaces
*/
enum lcd_format {
LCD_VESA = 0,
LCD_JEIDA = 1,
LCD_LOC = 2,
LCD_RGB = 4,
LCD_HDMI = 5,
};
extern int bd_setup_lcd_by_id(int id);
extern int bd_setup_lcd_by_name(char *name);
extern struct nxp_lcd *bd_get_lcd(void);
extern const char *bd_get_lcd_name(void);
extern int bd_get_lcd_density(void);
extern enum lcd_format bd_get_lcd_format(void);
extern int bd_fixup_lcd_fdt(void *blob, struct nxp_lcd *cfg);
#endif /* __MACH_NXP_FB_H__ */

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*/
#include <config.h>
#include <common.h>
#include <errno.h>
#include <asm/io.h>
#include <asm/arch/clk.h>
#include <i2c.h>
#include <pwm.h>
#include <irq_func.h>
#include <asm/arch/nexell.h>
#include <asm/arch/nx_gpio.h>
#ifndef NSEC_PER_SEC
#define NSEC_PER_SEC 1000000000L
#endif
#define SAMPLE_BPS 9600
#define SAMPLE_IN_US 101 /* (1000000 / BPS) */
#define REQ_INFO 0x60U
#define REQ_BL 0x80U
#define BUS_I2C 0x18
#define ONEWIRE_I2C_BUS 2
#define ONEWIRE_I2C_ADDR 0x2f
static int bus_type = -1;
static int lcd_id = -1;
static unsigned short lcd_fwrev;
static int current_brightness = -1;
#ifdef CONFIG_DM_I2C
static struct udevice *i2c_dev;
#endif
/* debug */
#if (0)
#define DBGOUT(msg...) do { printf("onewire: " msg); } while (0)
#else
#define DBGOUT(msg...) do {} while (0)
#endif
/* based on web page from http://lfh1986.blogspot.com */
static unsigned char crc8_ow(unsigned int v, unsigned int len)
{
unsigned char crc = 0xACU;
while (len--) {
if ((crc & 0x80U) != 0) {
crc <<= 1;
crc ^= 0x7U;
} else {
crc <<= 1;
}
if ((v & (1U << 31)) != 0)
crc ^= 0x7U;
v <<= 1;
}
return crc;
}
/* GPIO helpers */
#define __IO_GRP 2 /* GPIOC15 */
#define __IO_IDX 15
static inline void set_pin_as_input(void)
{
nx_gpio_set_output_enable(__IO_GRP, __IO_IDX, 0);
}
static inline void set_pin_as_output(void)
{
nx_gpio_set_output_enable(__IO_GRP, __IO_IDX, 1);
}
static inline void set_pin_value(int v)
{
nx_gpio_set_output_value(__IO_GRP, __IO_IDX, !!v);
}
static inline int get_pin_value(void)
{
return nx_gpio_get_input_value(__IO_GRP, __IO_IDX);
}
/* Timer helpers */
#define PWM_CH 3
#define PWM_TCON (PHY_BASEADDR_PWM + 0x08)
#define PWM_TCON_START (1 << 16)
#define PWM_TINT_CSTAT (PHY_BASEADDR_PWM + 0x44)
static int onewire_init_timer(void)
{
int period_ns = NSEC_PER_SEC / SAMPLE_BPS;
/* range: 1080~1970 */
period_ns -= 1525;
return pwm_config(PWM_CH, period_ns >> 1, period_ns);
}
static void wait_one_tick(void)
{
unsigned int tcon;
tcon = readl(PWM_TCON);
tcon |= PWM_TCON_START;
writel(tcon, PWM_TCON);
while (1) {
if (readl(PWM_TINT_CSTAT) & (1 << (5 + PWM_CH)))
break;
}
writel((1 << (5 + PWM_CH)), PWM_TINT_CSTAT);
tcon &= ~PWM_TCON_START;
writel(tcon, PWM_TCON);
}
/* Session handler */
static int onewire_session(unsigned char req, unsigned char res[])
{
unsigned int Req;
unsigned int *Res;
int ints = disable_interrupts();
int i;
int ret;
Req = (req << 24) | (crc8_ow(req << 24, 8) << 16);
Res = (unsigned int *)res;
set_pin_value(1);
set_pin_as_output();
for (i = 0; i < 60; i++)
wait_one_tick();
set_pin_value(0);
for (i = 0; i < 2; i++)
wait_one_tick();
for (i = 0; i < 16; i++) {
int v = !!(Req & (1U << 31));
Req <<= 1;
set_pin_value(v);
wait_one_tick();
}
wait_one_tick();
set_pin_as_input();
wait_one_tick();
for (i = 0; i < 32; i++) {
(*Res) <<= 1;
(*Res) |= get_pin_value();
wait_one_tick();
}
set_pin_value(1);
set_pin_as_output();
if (ints)
enable_interrupts();
ret = crc8_ow(*Res, 24) == res[0];
DBGOUT("req = %02X, res = %02X%02X%02X%02X, ret = %d\n",
req, res[3], res[2], res[1], res[0], ret);
return ret;
}
static int onewire_i2c_do_request(unsigned char req, unsigned char *buf)
{
unsigned char tx[4];
int ret;
tx[0] = req;
tx[1] = crc8_ow(req << 24, 8);
#ifdef CONFIG_DM_I2C
if (dm_i2c_write(i2c_dev, 0, tx, 2))
return -EIO;
if (!buf)
return 0;
if (dm_i2c_read(i2c_dev, 0, buf, 4))
return -EIO;
#else
if (i2c_write(ONEWIRE_I2C_ADDR, 0, 0, tx, 2))
return -EIO;
if (!buf) /* NO READ */
return 0;
if (i2c_read(ONEWIRE_I2C_ADDR, 0, 0, buf, 4))
return -EIO;
#endif
ret = crc8_ow((buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8), 24);
DBGOUT("req = %02X, res = %02X%02X%02X%02X, ret = %02x\n",
req, buf[0], buf[1], buf[2], buf[3], ret);
return (ret == buf[3]) ? 0 : -EIO;
}
static void onewire_i2c_init(void)
{
unsigned char buf[4];
int ret;
#ifdef CONFIG_DM_I2C
ret = i2c_get_chip_for_busnum(ONEWIRE_I2C_BUS,
ONEWIRE_I2C_ADDR, 0, &i2c_dev);
#else
i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
i2c_set_bus_num(ONEWIRE_I2C_BUS);
ret = i2c_probe(ONEWIRE_I2C_ADDR);
#endif
if (ret)
return;
ret = onewire_i2c_do_request(REQ_INFO, buf);
if (!ret) {
lcd_id = buf[0];
lcd_fwrev = buf[1] * 0x100 + buf[2];
bus_type = BUS_I2C;
}
}
void onewire_init(void)
{
/* GPIO, Pull-off */
nx_gpio_set_pad_function(__IO_GRP, __IO_IDX, 1);
nx_gpio_set_pull_mode(__IO_GRP, __IO_IDX, 2);
onewire_init_timer();
onewire_i2c_init();
}
int onewire_get_info(unsigned char *lcd, unsigned short *fw_ver)
{
unsigned char res[4];
int i;
if (bus_type == BUS_I2C && lcd_id > 0) {
*lcd = lcd_id;
*fw_ver = lcd_fwrev;
return 0;
}
for (i = 0; i < 3; i++) {
if (onewire_session(REQ_INFO, res)) {
*lcd = res[3];
*fw_ver = res[2] * 0x100 + res[1];
lcd_id = *lcd;
DBGOUT("lcd = %d, fw_ver = %x\n", *lcd, *fw_ver);
return 0;
}
}
/* LCD unknown or not connected */
*lcd = 0;
*fw_ver = -1;
return -1;
}
int onewire_get_lcd_id(void)
{
return lcd_id;
}
int onewire_set_backlight(int brightness)
{
unsigned char res[4];
int i;
if (brightness == current_brightness)
return 0;
if (brightness > 127)
brightness = 127;
else if (brightness < 0)
brightness = 0;
if (bus_type == BUS_I2C) {
onewire_i2c_do_request((REQ_BL | brightness), NULL);
current_brightness = brightness;
return 0;
}
for (i = 0; i < 3; i++) {
if (onewire_session((REQ_BL | brightness), res)) {
current_brightness = brightness;
return 0;
}
}
return -1;
}

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/* SPDX-License-Identifier: GPL-2.0+
*
* Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*/
#ifndef __ONE_WIRE_H__
#define __ONE_WIRE_H__
extern void onewire_init(void);
extern int onewire_get_info(unsigned char *lcd, unsigned short *fw_ver);
extern int onewire_get_lcd_id(void);
extern int onewire_set_backlight(int brightness);
#endif /* __ONE_WIRE_H__ */