mx6: soc: update get_cpu_rev and get_imx_type for mx6solo/sololite

[karo-tx-uboot.git] / arch / arm / cpu / armv7 / mx6 / soc.c

diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index bc65767e7d8d934105dcfa6bb2f5c92a71341fe9..a8aad5dd0a6c8548277021ebe8f6e159dbf31b9b 100644 (file)
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -31,17 +31,33 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/imx-common/boot_mode.h>
 
+struct scu_regs {
+       u32     ctrl;
+       u32     config;
+       u32     status;
+       u32     invalidate;
+       u32     fpga_rev;
+};
+
 u32 get_cpu_rev(void)
 {
        struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
-       int reg = readl(&anatop->digprog);
-
-       /* Read mx6 variant: quad, dual or solo */
-       int system_rev = (reg >> 4) & 0xFF000;
-       /* Read mx6 silicon revision */
-       system_rev |= (reg & 0xFF) + 0x10;
-
-       return system_rev;
+       u32 reg = readl(&anatop->digprog_sololite);
+       u32 type = ((reg >> 16) & 0xff);
+
+       if (type != MXC_CPU_MX6SL) {
+               reg = readl(&anatop->digprog);
+               type = ((reg >> 16) & 0xff);
+               if (type == MXC_CPU_MX6DL) {
+                       struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR;
+                       u32 cfg = readl(&scu->config) & 3;
+
+                       if (!cfg)
+                               type = MXC_CPU_MX6SOLO;
+               }
+       }
+       reg &= 0xff;            /* mx6 silicon revision */
+       return (type << 12) | (reg + 0x10);
 }
 
 void init_aips(void)