POWERPC: Bring the fs_no calculation to the relevant SoC enumeration

The fs_no mean used to be fs_enet driver driven, hence it was an
enumeration across all the possible fs_enet "users" in the SoC. Now, with
QE on the pipeline, and to make DTS descriptions more clear, fs_no features
relevant SoC part number, with additional field to describe the SoC type.

Another reason for that is now not only fs_enet is going to utilize those
stuff. There might be UART, HLDC, and even USB, so to prevent confusion and
be ready for upcoming OF_device transfer, fs_enet and cpm_uart drivers were
updated in that concern, as well as the relevant DTS.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>

6 files changed, 66 insertions, 9 deletions

diff --git a/arch/powerpc/boot/dts/mpc8560ads.dts b/arch/powerpc/boot/dts/mpc8560ads.dts
index ba5c943a6fe9..2b168486aeba 100644
--- a/arch/powerpc/boot/dts/mpc8560ads.dts
+++ b/arch/powerpc/boot/dts/mpc8560ads.dts
@@ -244,7 +244,7 @@
                                 device_type = "serial";
                                 compatible = "cpm_uart";
                                 model = "SCC";
-                                device-id = <2>;
+                                device-id = <1>;
                                 reg = <91a00 20 88000 100>;
                                 clock-setup = <00ffffff 0>;
                                 rx-clock = <1>;
@@ -258,7 +258,7 @@
                                 device_type = "serial";
                                 compatible = "cpm_uart";
                                 model = "SCC";
-                                device-id = <3>;
+                                device-id = <2>;
                                 reg = <91a20 20 88100 100>;
                                 clock-setup = <ff00ffff 90000>;
                                 rx-clock = <2>;
@@ -272,7 +272,7 @@
                                 device_type = "network";
                                 compatible = "fs_enet";
                                 model = "FCC";
-                                device-id = <3>;
+                                device-id = <2>;
                                 reg = <91320 20 88500 100 913a0 30>;
                                 mac-address = [ 00 00 0C 00 02 FD ];
                                 clock-setup = <ff00ffff 250000>;
@@ -287,7 +287,7 @@
                                 device_type = "network";
                                 compatible = "fs_enet";
                                 model = "FCC";
-                                device-id = <4>;
+                                device-id = <3>;
                                 reg = <91340 20 88600 100 913d0 30>;
                                 mac-address = [ 00 00 0C 00 03 FD ];
                                 clock-setup = <ffff00ff 3700>;
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 4e72bb983636..022ed275ea68 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -622,6 +622,7 @@ static int __init fs_enet_of_init(void)
 
                 id = get_property(np, "device-id", NULL);
                 fs_enet_data.fs_no = *id;
+                strcpy(fs_enet_data.fs_type, model);
 
                 mdio = of_get_parent(phy);
                 ret = of_address_to_resource(mdio, 0, &res);
@@ -635,7 +636,7 @@ static int __init fs_enet_of_init(void)
                 fs_enet_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL));
 
                 if (strstr(model, "FCC")) {
-                        int fcc_index = fs_get_fcc_index(*id);
+                        int fcc_index = *id - 1;
 
                         fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0);
                         fs_enet_data.rx_ring = 32;
@@ -688,6 +689,7 @@ static int __init cpm_uart_of_init(void)
                 struct resource r[3];
                 struct fs_uart_platform_info cpm_uart_data;
                 const int *id;
+                const char *model;
 
                 memset(r, 0, sizeof(r));
                 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
@@ -716,6 +718,10 @@ static int __init cpm_uart_of_init(void)
 
                 id = get_property(np, "device-id", NULL);
                 cpm_uart_data.fs_no = *id;
+
+                model = (char*)get_property(np, "model", NULL);
+                strcpy(cpm_uart_data.fs_type, model);
+
                 cpm_uart_data.uart_clk = ppc_proc_freq;
 
                 cpm_uart_data.tx_num_fifo = 4;
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index f358ee61d9b9..3e2a3a20d50a 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -944,12 +944,13 @@ extern int fs_mii_connect(struct net_device *dev);
 extern void fs_mii_disconnect(struct net_device *dev);
 
 static struct net_device *fs_init_instance(struct device *dev,
-                const struct fs_platform_info *fpi)
+                struct fs_platform_info *fpi)
 {
         struct net_device *ndev = NULL;
         struct fs_enet_private *fep = NULL;
         int privsize, i, r, err = 0, registered = 0;
 
+        fpi->fs_no = fs_get_id(fpi);
         /* guard */
         if ((unsigned int)fpi->fs_no >= FS_MAX_INDEX)
                 return ERR_PTR(-EINVAL);
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 24613a68f5cc..a0d6136deb9b 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -1023,15 +1023,17 @@ int cpm_uart_drv_get_platform_data(struct platform_device *pdev, int is_con)
 {
         struct resource *r;
         struct fs_uart_platform_info *pdata = pdev->dev.platform_data;
-        int idx = pdata->fs_no; /* It is UART_SMCx or UART_SCCx index */
+        int idx;        /* It is UART_SMCx or UART_SCCx index */
         struct uart_cpm_port *pinfo;
         int line;
         u32 mem, pram;
 
+        idx = pdata->fs_no = fs_uart_get_id(pdata);
+
         line = cpm_uart_id2nr(idx);
         if(line < 0) {
                 printk(KERN_ERR"%s(): port %d is not registered", __FUNCTION__, idx);
-                return -1;
+                return -EINVAL;
         }
 
         pinfo = (struct uart_cpm_port *) &cpm_uart_ports[idx];
@@ -1263,11 +1265,12 @@ static int cpm_uart_drv_probe(struct device *dev)
         }
 
         pdata = pdev->dev.platform_data;
-        pr_debug("cpm_uart_drv_probe: Adding CPM UART %d\n", cpm_uart_id2nr(pdata->fs_no));
 
         if ((ret = cpm_uart_drv_get_platform_data(pdev, 0)))
                 return ret;
 
+        pr_debug("cpm_uart_drv_probe: Adding CPM UART %d\n", cpm_uart_id2nr(pdata->fs_no));
+
         if (pdata->init_ioports)
                 pdata->init_ioports(pdata);
 
diff --git a/include/linux/fs_enet_pd.h b/include/linux/fs_enet_pd.h
index 932223550aca..543cd3cd9e77 100644
--- a/include/linux/fs_enet_pd.h
+++ b/include/linux/fs_enet_pd.h
@@ -55,6 +55,30 @@ static inline int fs_get_scc_index(enum fs_id id)
         return -1;
 }
 
+static inline int fs_fec_index2id(int index)
+{
+        int id = fsid_fec1 + index - 1;
+        if (id >= fsid_fec1 && id <= fsid_fec2)
+                return id;
+        return FS_MAX_INDEX;
+                }
+
+static inline int fs_fcc_index2id(int index)
+{
+        int id = fsid_fcc1 + index - 1;
+        if (id >= fsid_fcc1 && id <= fsid_fcc3)
+                return id;
+        return FS_MAX_INDEX;
+}
+
+static inline int fs_scc_index2id(int index)
+{
+        int id = fsid_scc1 + index - 1;
+        if (id >= fsid_scc1 && id <= fsid_scc4)
+                return id;
+        return FS_MAX_INDEX;
+}
+
 enum fs_mii_method {
         fsmii_fixed,
         fsmii_fec,
@@ -91,6 +115,7 @@ struct fs_platform_info {
         void(*init_ioports)(struct fs_platform_info *);
         /* device specific information */
         int fs_no;              /* controller index            */
+        char fs_type[4];        /* controller type             */
 
         u32 cp_page;            /* CPM page */
         u32 cp_block;           /* CPM sblock */
@@ -126,4 +151,16 @@ struct fs_mii_fec_platform_info {
         u32 irq[32];
         u32 mii_speed;
 };
+
+static inline int fs_get_id(struct fs_platform_info *fpi)
+{
+        if(strstr(fpi->fs_type, "SCC"))
+                return fs_scc_index2id(fpi->fs_no);
+        if(strstr(fpi->fs_type, "FCC"))
+                return fs_fcc_index2id(fpi->fs_no);
+        if(strstr(fpi->fs_type, "FEC"))
+                return fs_fec_index2id(fpi->fs_no);
+        return fpi->fs_no;
+}
+
 #endif
diff --git a/include/linux/fs_uart_pd.h b/include/linux/fs_uart_pd.h
index a99a020f95c2..809bb9ffc788 100644
--- a/include/linux/fs_uart_pd.h
+++ b/include/linux/fs_uart_pd.h
@@ -49,6 +49,7 @@ struct fs_uart_platform_info {
         void(*init_ioports)(struct fs_uart_platform_info *);
         /* device specific information */
         int fs_no;              /* controller index */
+        char fs_type[4];        /* controller type  */
         u32 uart_clk;
         u8 tx_num_fifo;
         u8 tx_buf_size;
@@ -59,4 +60,13 @@ struct fs_uart_platform_info {
         u8 clk_tx;
 };
 
+static inline int fs_uart_get_id(struct fs_uart_platform_info *fpi)
+{
+        if(strstr(fpi->fs_type, "SMC"))
+                return fs_uart_id_smc2fsid(fpi->fs_no);
+        if(strstr(fpi->fs_type, "SCC"))
+                return fs_uart_id_scc2fsid(fpi->fs_no);
+        return fpi->fs_no;
+}
+
 #endif