This provides an architecture level board identify function to replace the
cpuid direct usage
Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
---
drivers/platform/x86/intel_scu_ipc.c | 17 +++++------------
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 2245876..5258749 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);
}
--
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