mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-14 07:06:19 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
240 lines
6.0 KiB
C
240 lines
6.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015-2017 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#include <common.h>
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#include <spl.h>
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#include <stdio.h>
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#include <linux/log2.h>
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#include "../init.h"
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#include "../sbc/sbc-regs.h"
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#include "../sg-regs.h"
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#include "../soc-info.h"
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#include "boot-device.h"
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struct uniphier_boot_device_info {
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unsigned int soc_id;
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unsigned int boot_device_sel_shift;
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const struct uniphier_boot_device *boot_device_table;
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const unsigned int *boot_device_count;
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int (*boot_device_is_usb)(u32 pinmon);
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unsigned int (*boot_device_fixup)(unsigned int mode);
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int have_internal_stm;
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};
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static const struct uniphier_boot_device_info uniphier_boot_device_info[] = {
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#if defined(CONFIG_ARCH_UNIPHIER_LD4)
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{
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.soc_id = UNIPHIER_LD4_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_ld4_boot_device_table,
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.boot_device_count = &uniphier_ld4_boot_device_count,
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.have_internal_stm = 1,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_PRO4)
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{
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.soc_id = UNIPHIER_PRO4_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_ld4_boot_device_table,
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.boot_device_count = &uniphier_ld4_boot_device_count,
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.have_internal_stm = 0,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_SLD8)
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{
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.soc_id = UNIPHIER_SLD8_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_ld4_boot_device_table,
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.boot_device_count = &uniphier_ld4_boot_device_count,
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.have_internal_stm = 1,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
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{
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.soc_id = UNIPHIER_PRO5_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_pro5_boot_device_table,
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.boot_device_count = &uniphier_pro5_boot_device_count,
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.have_internal_stm = 0,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_PXS2)
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{
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.soc_id = UNIPHIER_PXS2_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_pxs2_boot_device_table,
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.boot_device_count = &uniphier_pxs2_boot_device_count,
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.boot_device_is_usb = uniphier_pxs2_boot_device_is_usb,
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.boot_device_fixup = uniphier_pxs2_boot_device_fixup,
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.have_internal_stm = 0,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_LD6B)
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{
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.soc_id = UNIPHIER_LD6B_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_pxs2_boot_device_table,
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.boot_device_count = &uniphier_pxs2_boot_device_count,
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.boot_device_is_usb = uniphier_pxs2_boot_device_is_usb,
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.boot_device_fixup = uniphier_pxs2_boot_device_fixup,
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.have_internal_stm = 1, /* STM on A-chip */
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_LD11)
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{
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.soc_id = UNIPHIER_LD11_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_ld11_boot_device_table,
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.boot_device_count = &uniphier_ld11_boot_device_count,
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.boot_device_is_usb = uniphier_ld11_boot_device_is_usb,
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.boot_device_fixup = uniphier_ld11_boot_device_fixup,
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.have_internal_stm = 1,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_LD20)
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{
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.soc_id = UNIPHIER_LD20_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_ld11_boot_device_table,
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.boot_device_count = &uniphier_ld11_boot_device_count,
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.boot_device_is_usb = uniphier_ld20_boot_device_is_usb,
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.boot_device_fixup = uniphier_ld11_boot_device_fixup,
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.have_internal_stm = 1,
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},
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#endif
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#if defined(CONFIG_ARCH_UNIPHIER_PXS3)
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{
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.soc_id = UNIPHIER_PXS3_ID,
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.boot_device_sel_shift = 1,
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.boot_device_table = uniphier_pxs3_boot_device_table,
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.boot_device_count = &uniphier_pxs3_boot_device_count,
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.boot_device_is_usb = uniphier_pxs3_boot_device_is_usb,
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.have_internal_stm = 0,
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},
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#endif
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};
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UNIPHIER_DEFINE_SOCDATA_FUNC(uniphier_get_boot_device_info,
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uniphier_boot_device_info)
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static unsigned int __uniphier_boot_device_raw(
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const struct uniphier_boot_device_info *info)
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{
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u32 pinmon;
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unsigned int boot_sel;
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if (boot_is_swapped())
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return BOOT_DEVICE_NOR;
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pinmon = readl(SG_PINMON0);
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if (info->boot_device_is_usb && info->boot_device_is_usb(pinmon))
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return BOOT_DEVICE_USB;
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boot_sel = pinmon >> info->boot_device_sel_shift;
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BUG_ON(!is_power_of_2(*info->boot_device_count));
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boot_sel &= *info->boot_device_count - 1;
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return info->boot_device_table[boot_sel].boot_device;
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}
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unsigned int uniphier_boot_device_raw(void)
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{
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const struct uniphier_boot_device_info *info;
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info = uniphier_get_boot_device_info();
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if (!info) {
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pr_err("unsupported SoC\n");
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return BOOT_DEVICE_NONE;
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}
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return __uniphier_boot_device_raw(info);
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}
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u32 spl_boot_device(void)
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{
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const struct uniphier_boot_device_info *info;
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u32 raw_mode;
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info = uniphier_get_boot_device_info();
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if (!info) {
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pr_err("unsupported SoC\n");
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return BOOT_DEVICE_NONE;
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}
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raw_mode = __uniphier_boot_device_raw(info);
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return info->boot_device_fixup ?
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info->boot_device_fixup(raw_mode) : raw_mode;
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}
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int uniphier_have_internal_stm(void)
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{
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const struct uniphier_boot_device_info *info;
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info = uniphier_get_boot_device_info();
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if (!info) {
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pr_err("unsupported SoC\n");
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return -ENOTSUPP;
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}
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return info->have_internal_stm;
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}
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int uniphier_boot_from_backend(void)
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{
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return !!(readl(SG_PINMON0) & BIT(27));
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}
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#ifndef CONFIG_SPL_BUILD
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static int do_pinmon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const struct uniphier_boot_device_info *info;
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u32 pinmon;
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unsigned int boot_device_count, boot_sel;
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int i;
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info = uniphier_get_boot_device_info();
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if (!info) {
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pr_err("unsupported SoC\n");
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return CMD_RET_FAILURE;
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}
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if (uniphier_have_internal_stm())
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printf("STB Micon: %s\n",
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uniphier_boot_from_backend() ? "OFF" : "ON");
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printf("Boot Swap: %s\n", boot_is_swapped() ? "ON" : "OFF");
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pinmon = readl(SG_PINMON0);
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if (info->boot_device_is_usb)
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printf("USB Boot: %s\n",
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info->boot_device_is_usb(pinmon) ? "ON" : "OFF");
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boot_device_count = *info->boot_device_count;
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boot_sel = pinmon >> info->boot_device_sel_shift;
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boot_sel &= boot_device_count - 1;
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printf("\nBoot Mode Sel:\n");
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for (i = 0; i < boot_device_count; i++)
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printf(" %c %02x %s\n", i == boot_sel ? '*' : ' ', i,
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info->boot_device_table[i].desc);
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(
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pinmon, 1, 1, do_pinmon,
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"pin monitor",
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""
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);
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#endif /* !CONFIG_SPL_BUILD */
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