mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
d1611086e0
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>
109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
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* (http://www.friendlyarm.com)
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*/
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#include <config.h>
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#include <common.h>
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#include <i2c.h>
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#include <asm/io.h>
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#include <asm/arch/nexell.h>
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#include <asm/arch/nx_gpio.h>
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/* Board revision list: <PCB3 | PCB2 | PCB1>
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* 0b000 - NanoPi 2
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* 0b001 - NanoPC-T2
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* 0b010 - NanoPi S2
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* 0b011 - Smart4418
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* 0b100 - NanoPi Fire 2A
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* 0b111 - NanoPi M2A
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*
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* Extented revision:
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* 0b001 - Smart4418-SDK
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*/
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#define __IO_GRP 2 /* GPIO_C */
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#define __IO_PCB1 26
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#define __IO_PCB2 27
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#define __IO_PCB3 25
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static int pcb_rev = -1;
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static int base_rev;
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static void bd_hwrev_config_gpio(void)
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{
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int gpios[3][2] = {
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{ __IO_PCB1, 1 },
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{ __IO_PCB2, 1 },
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{ __IO_PCB3, 1 },
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};
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int i;
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/* gpio input mode, pull-down */
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for (i = 0; i < 3; i++) {
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nx_gpio_set_pad_function(__IO_GRP, gpios[i][0], gpios[i][1]);
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nx_gpio_set_output_enable(__IO_GRP, gpios[i][0], 0);
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nx_gpio_set_pull_mode(__IO_GRP, gpios[i][0], 0);
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}
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}
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void bd_hwrev_init(void)
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{
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if (pcb_rev >= 0)
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return;
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bd_hwrev_config_gpio();
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pcb_rev = nx_gpio_get_input_value(__IO_GRP, __IO_PCB1);
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pcb_rev |= nx_gpio_get_input_value(__IO_GRP, __IO_PCB2) << 1;
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pcb_rev |= nx_gpio_get_input_value(__IO_GRP, __IO_PCB3) << 2;
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}
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/* Get extended revision for SmartXX18 */
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void bd_base_rev_init(void)
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{
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struct udevice *dev;
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u8 val = 0;
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if (pcb_rev != 0x3)
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return;
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#define PCA9536_I2C_BUS 2
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#define PCA9636_I2C_ADDR 0x41
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if (i2c_get_chip_for_busnum
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(PCA9536_I2C_BUS, PCA9636_I2C_ADDR, 1, &dev))
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return;
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if (!dm_i2c_read(dev, 0, &val, 1))
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base_rev = (val & 0xf);
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}
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/* To override __weak symbols */
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u32 get_board_rev(void)
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{
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return (base_rev << 8) | pcb_rev;
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}
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const char *get_board_name(void)
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{
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bd_hwrev_init();
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switch (pcb_rev) {
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case 0:
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return "NanoPi 2";
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case 1:
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return "NanoPC-T2";
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case 2:
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return "NanoPi S2";
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case 3:
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return "Smart4418";
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case 4:
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return "NanoPi Fire 2A";
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case 7:
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return "NanoPi M2A";
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default:
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return "s5p4418-X";
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}
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}
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