[ARM] Kirkwood: add support for newer SoC models
Add support to the Kirkwood port for newer device models and silicon
revisions. Instead of looking at the DEVICE_ID register, the device
version is now determined by looking at the PCI-Express device ID and
revision registers, as it is done for orion5x, and this information
is used to determine the TCLK frequency, again, as it is done for
orion5x.
Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 2e79dab..c8516e3 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -532,6 +532,12 @@
int __init kirkwood_find_tclk(void)
{
+ u32 dev, rev;
+
+ kirkwood_pcie_id(&dev, &rev);
+ if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
+ return 200000000;
+
return 166666667;
}
@@ -549,18 +555,37 @@
/*****************************************************************************
* General
****************************************************************************/
+/*
+ * Identify device ID and revision.
+ */
static char * __init kirkwood_id(void)
{
- switch (readl(DEVICE_ID) & 0x3) {
- case 0:
- return "88F6180";
- case 1:
- return "88F6192";
- case 2:
- return "88F6281";
- }
+ u32 dev, rev;
- return "unknown 88F6000 variant";
+ kirkwood_pcie_id(&dev, &rev);
+
+ if (dev == MV88F6281_DEV_ID) {
+ if (rev == MV88F6281_REV_Z0)
+ return "MV88F6281-Z0";
+ else if (rev == MV88F6281_REV_A0)
+ return "MV88F6281-A0";
+ else
+ return "MV88F6281-Rev-Unsupported";
+ } else if (dev == MV88F6192_DEV_ID) {
+ if (rev == MV88F6192_REV_Z0)
+ return "MV88F6192-Z0";
+ else if (rev == MV88F6192_REV_A0)
+ return "MV88F6192-A0";
+ else
+ return "MV88F6192-Rev-Unsupported";
+ } else if (dev == MV88F6180_DEV_ID) {
+ if (rev == MV88F6180_REV_A0)
+ return "MV88F6180-Rev-A0";
+ else
+ return "MV88F6180-Rev-Unsupported";
+ } else {
+ return "Device-Unknown";
+ }
}
static int __init is_l2_writethrough(void)
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 69cd113..02abef1 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -28,6 +28,8 @@
void kirkwood_setup_pcie_mem_win(int window, u32 base, u32 size,
int maj, int min);
+void kirkwood_pcie_id(u32 *dev, u32 *rev);
+
void kirkwood_ehci_init(void);
void kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data);
void kirkwood_pcie_init(void);
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index 5c69992..eae4240 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -68,6 +68,20 @@
#define L2_WRITETHROUGH 0x00000010
/*
+ * Supported devices and revisions.
+ */
+#define MV88F6281_DEV_ID 0x6281
+#define MV88F6281_REV_Z0 0
+#define MV88F6281_REV_A0 2
+
+#define MV88F6192_DEV_ID 0x6192
+#define MV88F6192_REV_Z0 0
+#define MV88F6192_REV_A0 2
+
+#define MV88F6180_DEV_ID 0x6180
+#define MV88F6180_REV_A0 2
+
+/*
* Register Map
*/
#define DDR_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x00000)
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 2195fa3..f6b08f2 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -18,6 +18,12 @@
#define PCIE_BASE ((void __iomem *)PCIE_VIRT_BASE)
+void __init kirkwood_pcie_id(u32 *dev, u32 *rev)
+{
+ *dev = orion_pcie_dev_id(PCIE_BASE);
+ *rev = orion_pcie_rev(PCIE_BASE);
+}
+
static int pcie_valid_config(int bus, int dev)
{
/*