From 5d535aa40bb73f248d307a2cfc58e6187465036d Mon Sep 17 00:00:00 2001 From: Pankaj Bansal Date: Sat, 17 Aug 2019 01:07:32 +0000 Subject: [PATCH] board: fsl: lx2160a: implement board_fix_fdt lx2160a rev1 and rev2 SoC has different pcie controller. The pcie controller device tree node fields "compatible" and registers names needs to be updated accordingly This change in device tree is handled as part of fdt fixups. These changes would only be applied if the soc revision is not rev1. Signed-off-by: Pankaj Bansal Signed-off-by: Priyanka Jain --- board/freescale/lx2160a/lx2160a.c | 68 +++++++++++++++++++++++++++++++++++++++ configs/lx2160aqds_tfa_defconfig | 1 + configs/lx2160ardb_tfa_defconfig | 1 + 3 files changed, 70 insertions(+) diff --git a/board/freescale/lx2160a/lx2160a.c b/board/freescale/lx2160a/lx2160a.c index 7f19a1a..2a8dbca 100644 --- a/board/freescale/lx2160a/lx2160a.c +++ b/board/freescale/lx2160a/lx2160a.c @@ -20,6 +20,8 @@ #include #include #include +#include +#include #include #include #include "../common/qixis.h" @@ -116,6 +118,72 @@ int board_early_init_f(void) return 0; } +#ifdef CONFIG_OF_BOARD_FIXUP +int board_fix_fdt(void *fdt) +{ + char *reg_names, *reg_name; + int names_len, old_name_len, new_name_len, remaining_names_len; + struct str_map { + char *old_str; + char *new_str; + } reg_names_map[] = { + { "ccsr", "dip" }, + { "pf_ctrl", "ctrl" } + }; + int off = -1, i; + + if (IS_SVR_REV(get_svr(), 1, 0)) + return 0; + + off = fdt_node_offset_by_compatible(fdt, -1, "fsl,lx2160a-pcie"); + while (off != -FDT_ERR_NOTFOUND) { + fdt_setprop(fdt, off, "compatible", "fsl,ls-pcie", + strlen("fsl,ls-pcie") + 1); + + reg_names = (char *)fdt_getprop(fdt, off, "reg-names", + &names_len); + if (!reg_names) + continue; + + reg_name = reg_names; + remaining_names_len = names_len - (reg_name - reg_names); + for (i = 0; (i < ARRAY_SIZE(reg_names_map)) && names_len; i++) { + old_name_len = strlen(reg_names_map[i].old_str); + new_name_len = strlen(reg_names_map[i].new_str); + if (memcmp(reg_name, reg_names_map[i].old_str, + old_name_len) == 0) { + /* first only leave required bytes for new_str + * and copy rest of the string after it + */ + memcpy(reg_name + new_name_len, + reg_name + old_name_len, + remaining_names_len - old_name_len); + /* Now copy new_str */ + memcpy(reg_name, reg_names_map[i].new_str, + new_name_len); + names_len -= old_name_len; + names_len += new_name_len; + } + + reg_name = memchr(reg_name, '\0', remaining_names_len); + if (!reg_name) + break; + + reg_name += 1; + + remaining_names_len = names_len - + (reg_name - reg_names); + } + + fdt_setprop(fdt, off, "reg-names", reg_names, names_len); + off = fdt_node_offset_by_compatible(fdt, off, + "fsl,lx2160a-pcie"); + } + + return 0; +} +#endif + #if defined(CONFIG_TARGET_LX2160AQDS) void esdhc_dspi_status_fixup(void *blob) { diff --git a/configs/lx2160aqds_tfa_defconfig b/configs/lx2160aqds_tfa_defconfig index 4e85543..e38c2a1 100644 --- a/configs/lx2160aqds_tfa_defconfig +++ b/configs/lx2160aqds_tfa_defconfig @@ -9,6 +9,7 @@ CONFIG_SEC_FIRMWARE_ARMV8_PSCI=y CONFIG_AHCI=y CONFIG_FIT_VERBOSE=y CONFIG_OF_BOARD_SETUP=y +CONFIG_OF_BOARD_FIXUP=y CONFIG_OF_STDOUT_VIA_ALIAS=y CONFIG_BOOTDELAY=10 CONFIG_USE_BOOTARGS=y diff --git a/configs/lx2160ardb_tfa_defconfig b/configs/lx2160ardb_tfa_defconfig index f08b3f4..6d14b6f 100644 --- a/configs/lx2160ardb_tfa_defconfig +++ b/configs/lx2160ardb_tfa_defconfig @@ -10,6 +10,7 @@ CONFIG_SEC_FIRMWARE_ARMV8_PSCI=y CONFIG_AHCI=y CONFIG_FIT_VERBOSE=y CONFIG_OF_BOARD_SETUP=y +CONFIG_OF_BOARD_FIXUP=y CONFIG_OF_STDOUT_VIA_ALIAS=y CONFIG_BOOTDELAY=10 CONFIG_USE_BOOTARGS=y -- 2.7.4