From f4e5880d0f3496a3151fe24d87ca2d08d3403a83 Mon Sep 17 00:00:00 2001 From: Roman Yeryomin Date: Wed, 17 Jan 2018 00:07:58 +0200 Subject: ramips: preliminary support for 4.14 - removed upstreamed patches - 0901-spansion_nand_id_fix.patch is disabled, not clear if it's needed Signed-off-by: Roman Yeryomin Signed-off-by: John Crispin --- .../patches-4.14/0200-linkit_bootstrap.patch | 97 ++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 target/linux/ramips/patches-4.14/0200-linkit_bootstrap.patch (limited to 'target/linux/ramips/patches-4.14/0200-linkit_bootstrap.patch') diff --git a/target/linux/ramips/patches-4.14/0200-linkit_bootstrap.patch b/target/linux/ramips/patches-4.14/0200-linkit_bootstrap.patch new file mode 100644 index 0000000000..865ae79f43 --- /dev/null +++ b/target/linux/ramips/patches-4.14/0200-linkit_bootstrap.patch @@ -0,0 +1,97 @@ +--- a/drivers/misc/Makefile ++++ b/drivers/misc/Makefile +@@ -57,6 +57,7 @@ obj-$(CONFIG_CXL_BASE) += cxl/ + obj-$(CONFIG_ASPEED_LPC_CTRL) += aspeed-lpc-ctrl.o + obj-$(CONFIG_ASPEED_LPC_SNOOP) += aspeed-lpc-snoop.o + obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o ++obj-$(CONFIG_SOC_MT7620) += linkit.o + + lkdtm-$(CONFIG_LKDTM) += lkdtm_core.o + lkdtm-$(CONFIG_LKDTM) += lkdtm_bugs.o +--- /dev/null ++++ b/drivers/misc/linkit.c +@@ -0,0 +1,84 @@ ++/* ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * publishhed by the Free Software Foundation. ++ * ++ * Copyright (C) 2015 John Crispin ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++ ++#define LINKIT_LATCH_GPIO 11 ++ ++struct linkit_hw_data { ++ char board[16]; ++ char rev[16]; ++}; ++ ++static void sanify_string(char *s) ++{ ++ int i; ++ ++ for (i = 0; i < 15; i++) ++ if (s[i] <= 0x20) ++ s[i] = '\0'; ++ s[15] = '\0'; ++} ++ ++static int linkit_probe(struct platform_device *pdev) ++{ ++ struct linkit_hw_data hw; ++ struct mtd_info *mtd; ++ size_t retlen; ++ int ret; ++ ++ mtd = get_mtd_device_nm("factory"); ++ if (IS_ERR(mtd)) ++ return PTR_ERR(mtd); ++ ++ ret = mtd_read(mtd, 0x400, sizeof(hw), &retlen, (u_char *) &hw); ++ put_mtd_device(mtd); ++ ++ sanify_string(hw.board); ++ sanify_string(hw.rev); ++ ++ dev_info(&pdev->dev, "Version : %s\n", hw.board); ++ dev_info(&pdev->dev, "Revision : %s\n", hw.rev); ++ ++ if (!strcmp(hw.board, "LINKITS7688")) { ++ dev_info(&pdev->dev, "setting up bootstrap latch\n"); ++ ++ if (devm_gpio_request(&pdev->dev, LINKIT_LATCH_GPIO, "bootstrap")) { ++ dev_err(&pdev->dev, "failed to setup bootstrap gpio\n"); ++ return -1; ++ } ++ gpio_direction_output(LINKIT_LATCH_GPIO, 0); ++ } ++ ++ return 0; ++} ++ ++static const struct of_device_id linkit_match[] = { ++ { .compatible = "mediatek,linkit" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, linkit_match); ++ ++static struct platform_driver linkit_driver = { ++ .probe = linkit_probe, ++ .driver = { ++ .name = "mtk-linkit", ++ .owner = THIS_MODULE, ++ .of_match_table = linkit_match, ++ }, ++}; ++ ++int __init linkit_init(void) ++{ ++ return platform_driver_register(&linkit_driver); ++} ++late_initcall_sync(linkit_init); -- cgit v1.2.3