intel_scu_ipc: Use the new cpu identification function

This provides an architecture level board identify function to replace the
cpuid direct usage

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 5 insertions, 12 deletions

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 2245876836e..5258749138d 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -74,8 +74,6 @@ struct intel_scu_ipc_dev {
 
 static struct intel_scu_ipc_dev  ipcdev; /* Only one for now */
 
-#define PLATFORM_LANGWELL 1
-#define PLATFORM_PENWELL 2
 static int platform;            /* Platform type */
 
 /*
@@ -169,7 +167,7 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
                 return -ENODEV;
         }
 
-        if (platform == PLATFORM_LANGWELL) {
+        if (platform != MRST_CPU_CHIP_PENWELL) {
                 /* Entry is 4 bytes for read/write, 5 bytes for read modify */
                 for (nc = 0; nc < count; nc++, offset += 3) {
                         cbuf[offset] = addr[nc];
@@ -217,7 +215,7 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
         if (id == IPC_CMD_PCNTRL_R) { /* Read rbuf */
                 /* Workaround: values are read as 0 without memcpy_fromio */
                 memcpy_fromio(cbuf, ipcdev.ipc_base + 0x90, 16);
-                if (platform == PLATFORM_LANGWELL) {
+                if (platform != MRST_CPU_CHIP_PENWELL) {
                         for (nc = 0, offset = 2; nc < count; nc++, offset += 3)
                                 data[nc] = ipc_data_readb(offset);
                 } else {
@@ -741,14 +739,9 @@ static struct pci_driver ipc_driver = {
 
 static int __init intel_scu_ipc_init(void)
 {
-        if (boot_cpu_data.x86 == 6 &&
-                boot_cpu_data.x86_model == 0x27 &&
-                boot_cpu_data.x86_mask == 1)
-                        platform = PLATFORM_PENWELL;
-        else if (boot_cpu_data.x86 == 6 &&
-                boot_cpu_data.x86_model == 0x26)
-                        platform = PLATFORM_LANGWELL;
-
+        platform = mrst_identify_cpu();
+        if (platform == 0)
+                return -ENODEV;
         return  pci_register_driver(&ipc_driver);
 }