net: ti: cpsw-common: Isolate getting syscon address from assigning macid
ti_cm_get_macid() is used to get a syscon node from the dt, read the
efuse address and then assign the macid read from the address. Divide
these two steps into separate functions one of which can be called from
ofdata_to_platdata() while the other can be called from _probe(). This
ensures that platdata can be assigned statically in a board file when
OF_CONTROL is not enabled. Also add a macid_sel_compat in private data
to get information about the macid byte placement.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
diff --git a/drivers/net/ti/cpsw-common.c b/drivers/net/ti/cpsw-common.c
index 6c8ddbd..ac12cfe 100644
--- a/drivers/net/ti/cpsw-common.c
+++ b/drivers/net/ti/cpsw-common.c
@@ -16,35 +16,11 @@
#define CTRL_MAC_REG(offset, id) ((offset) + 0x8 * (id))
-static int davinci_emac_3517_get_macid(struct udevice *dev, u16 offset,
- int slave, u8 *mac_addr)
+static void davinci_emac_3517_get_macid(u32 addr, u8 *mac_addr)
{
- void *fdt = (void *)gd->fdt_blob;
- int node = dev_of_offset(dev);
- u32 macid_lsb;
- u32 macid_msb;
- fdt32_t gmii = 0;
- int syscon;
- u32 addr;
-
- syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
- if (syscon < 0) {
- pr_err("Syscon offset not found\n");
- return -ENOENT;
- }
-
- addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii),
- sizeof(u32), MAP_NOCACHE);
- if (addr == FDT_ADDR_T_NONE) {
- pr_err("Not able to get syscon address to get mac efuse address\n");
- return -ENOENT;
- }
-
- addr += CTRL_MAC_REG(offset, slave);
-
/* try reading mac address from efuse */
- macid_lsb = readl(addr);
- macid_msb = readl(addr + 4);
+ u32 macid_lsb = readl(addr);
+ u32 macid_msb = readl(addr + 4);
mac_addr[0] = (macid_msb >> 16) & 0xff;
mac_addr[1] = (macid_msb >> 8) & 0xff;
@@ -52,39 +28,13 @@
mac_addr[3] = (macid_lsb >> 16) & 0xff;
mac_addr[4] = (macid_lsb >> 8) & 0xff;
mac_addr[5] = macid_lsb & 0xff;
-
- return 0;
}
-static int cpsw_am33xx_cm_get_macid(struct udevice *dev, u16 offset, int slave,
- u8 *mac_addr)
+static void cpsw_am33xx_cm_get_macid(u32 addr, u8 *mac_addr)
{
- void *fdt = (void *)gd->fdt_blob;
- int node = dev_of_offset(dev);
- u32 macid_lo;
- u32 macid_hi;
- fdt32_t gmii = 0;
- int syscon;
- u32 addr;
-
- syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
- if (syscon < 0) {
- pr_err("Syscon offset not found\n");
- return -ENOENT;
- }
-
- addr = (u32)map_physmem(fdt_translate_address(fdt, syscon, &gmii),
- sizeof(u32), MAP_NOCACHE);
- if (addr == FDT_ADDR_T_NONE) {
- pr_err("Not able to get syscon address to get mac efuse address\n");
- return -ENOENT;
- }
-
- addr += CTRL_MAC_REG(offset, slave);
-
/* try reading mac address from efuse */
- macid_lo = readl(addr);
- macid_hi = readl(addr + 4);
+ u32 macid_lo = readl(addr);
+ u32 macid_hi = readl(addr + 4);
mac_addr[5] = (macid_lo >> 8) & 0xff;
mac_addr[4] = macid_lo & 0xff;
@@ -92,30 +42,65 @@
mac_addr[2] = (macid_hi >> 16) & 0xff;
mac_addr[1] = (macid_hi >> 8) & 0xff;
mac_addr[0] = macid_hi & 0xff;
-
- return 0;
}
-int ti_cm_get_macid(struct udevice *dev, int slave, u8 *mac_addr)
+void ti_cm_get_macid(struct udevice *dev, struct cpsw_platform_data *data,
+ u8 *mac_addr)
{
- if (of_machine_is_compatible("ti,dm8148"))
- return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
+ if (!strcmp(data->macid_sel_compat, "cpsw,am33xx"))
+ cpsw_am33xx_cm_get_macid(data->syscon_addr, mac_addr);
+ else if (!strcmp(data->macid_sel_compat, "davinci,emac"))
+ davinci_emac_3517_get_macid(data->syscon_addr, mac_addr);
+}
- if (of_machine_is_compatible("ti,am33xx"))
- return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
+int ti_cm_get_macid_addr(struct udevice *dev, int slave,
+ struct cpsw_platform_data *data)
+{
+ void *fdt = (void *)gd->fdt_blob;
+ int node = dev_of_offset(dev);
+ fdt32_t gmii = 0;
+ int syscon;
+ u16 offset;
- if (device_is_compatible(dev, "ti,am3517-emac"))
- return davinci_emac_3517_get_macid(dev, 0x110, slave, mac_addr);
+ if (of_machine_is_compatible("ti,dm8148")) {
+ offset = 0x630;
+ data->macid_sel_compat = "cpsw,am33xx";
+ } else if (of_machine_is_compatible("ti,am33xx")) {
+ offset = 0x630;
+ data->macid_sel_compat = "cpsw,am33xx";
+ } else if (device_is_compatible(dev, "ti,am3517-emac")) {
+ offset = 0x110;
+ data->macid_sel_compat = "davinci,emac";
+ } else if (device_is_compatible(dev, "ti,dm816-emac")) {
+ offset = 0x30;
+ data->macid_sel_compat = "cpsw,am33xx";
+ } else if (of_machine_is_compatible("ti,am43")) {
+ offset = 0x630;
+ data->macid_sel_compat = "cpsw,am33xx";
+ } else if (of_machine_is_compatible("ti,dra7")) {
+ offset = 0x514;
+ data->macid_sel_compat = "davinci,emac";
+ } else {
+ dev_err(dev, "incompatible machine/device type for reading mac address\n");
+ return -ENOENT;
+ }
- if (device_is_compatible(dev, "ti,dm816-emac"))
- return cpsw_am33xx_cm_get_macid(dev, 0x30, slave, mac_addr);
+ syscon = fdtdec_lookup_phandle(fdt, node, "syscon");
+ if (syscon < 0) {
+ pr_err("Syscon offset not found\n");
+ return -ENOENT;
+ }
- if (of_machine_is_compatible("ti,am43"))
- return cpsw_am33xx_cm_get_macid(dev, 0x630, slave, mac_addr);
+ data->syscon_addr = (u32)map_physmem(fdt_translate_address(fdt, syscon,
+ &gmii),
+ sizeof(u32), MAP_NOCACHE);
+ if (data->syscon_addr == FDT_ADDR_T_NONE) {
+ pr_err("Not able to get syscon address to get mac efuse address\n");
+ return -ENOENT;
+ }
- if (of_machine_is_compatible("ti,dra7"))
- return davinci_emac_3517_get_macid(dev, 0x514, slave, mac_addr);
+ data->syscon_addr += CTRL_MAC_REG(offset, slave);
- dev_err(dev, "incompatible machine/device type for reading mac address\n");
- return -ENOENT;
+ return 0;
+
}