| Message ID | 20190516033236.10594-13-peng.fan@nxp.com |
|---|---|
| State | Superseded |
| Delegated to: | Stefano Babic |
| Headers | show
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[U-Boot,01/15] mx7ulp: Add common plugin codes for mx7ulp
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diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c index 7119ee4a07..6c53aa106e 100644 --- a/arch/arm/mach-imx/mx7ulp/soc.c +++ b/arch/arm/mach-imx/mx7ulp/soc.c @@ -18,10 +18,13 @@ struct imx_sec_config_fuse_t const imx_sec_config_fuse = { }; #endif +#define ROM_VERSION_ADDR 0x80 u32 get_cpu_rev(void) { - /* Temporally hard code the CPU rev to 0x73, rev 1.0. Fix it later */ - return (MXC_CPU_MX7ULP << 12) | (1 << 4); + /* Check the ROM version for cpu revision */ + u32 rom_version = readl((void __iomem *)ROM_VERSION_ADDR); + + return (MXC_CPU_MX7ULP << 12) | (rom_version & 0xFF); } #ifdef CONFIG_REVISION_TAG
Since there is no register for CPU revision, we use ROM version to check the A0 or B0 chip. Signed-off-by: Peng Fan <peng.fan@nxp.com> --- arch/arm/mach-imx/mx7ulp/soc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)