From 58da865e27f4a50d95b962bb6b299c18bcf8a5d3 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Fri, 28 Apr 2023 12:08:32 +0800 Subject: imx9: add i.MX93 variants support According to datasheet, iMX93 has fused parts with CORE1 or NPU or both disabled. So update code to support it, the kernel device tree runtime update will be added in future patches. Signed-off-by: Peng Fan --- arch/arm/mach-imx/imx9/soc.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-imx/imx9/soc.c') diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c index ca312ff455..439f899bc4 100644 --- a/arch/arm/mach-imx/imx9/soc.c +++ b/arch/arm/mach-imx/imx9/soc.c @@ -159,11 +159,34 @@ static void set_cpu_info(struct sentinel_get_info_data *info) memcpy((void *)&gd->arch.uid, &info->uid, 4 * sizeof(u32)); } +static u32 get_cpu_variant_type(u32 type) +{ + /* word 19 */ + u32 val = readl((ulong)FSB_BASE_ADDR + 0x8000 + (19 << 2)); + u32 val2 = readl((ulong)FSB_BASE_ADDR + 0x8000 + (20 << 2)); + bool npu_disable = !!(val & BIT(13)); + bool core1_disable = !!(val & BIT(15)); + u32 pack_9x9_fused = BIT(4) | BIT(17) | BIT(19) | BIT(24); + + if ((val2 & pack_9x9_fused) == pack_9x9_fused) + type = MXC_CPU_IMX9322; + + if (npu_disable && core1_disable) + return type + 3; + else if (npu_disable) + return type + 2; + else if (core1_disable) + return type + 1; + + return type; +} + u32 get_cpu_rev(void) { u32 rev = (gd->arch.soc_rev >> 24) - 0xa0; - return (MXC_CPU_IMX93 << 12) | (CHIP_REV_1_0 + rev); + return (get_cpu_variant_type(MXC_CPU_IMX93) << 12) | + (CHIP_REV_1_0 + rev); } #define UNLOCK_WORD 0xD928C520 /* unlock word */ -- cgit v1.2.3