[PATCH 33.3 v2 4/5] LEON3: Network initialization code updated to new AMBAPP layer

Daniel Hellstrom daniel at gaisler.com
Tue Apr 17 09:25:41 CDT 2012


Updated SMC91111, GRETH and open_eth driver registration
code to use new AMBAPP Layer.

Signed-off-by: Daniel Hellstrom <daniel at gaisler.com>
---
 .../lib/libbsp/sparc/leon3/leon_greth/leon_greth.c |   16 ++++---
 .../sparc/leon3/leon_open_eth/leon_open_eth.c      |   35 ++++++++---------
 .../sparc/leon3/leon_smc91111/leon_smc91111.c      |   40 ++++++++++++-------
 3 files changed, 50 insertions(+), 41 deletions(-)

diff --git a/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c b/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c
index 5641575..4c4c0b1 100644
--- a/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c
+++ b/c/src/lib/libbsp/sparc/leon3/leon_greth/leon_greth.c
@@ -31,17 +31,19 @@ int rtems_leon_greth_driver_attach(
   int attach
 )
 {
-  int device_found = 0;
   unsigned int base_addr = 0; /* avoid warnings */
   unsigned int eth_irq = 0;   /* avoid warnings */
-	amba_apb_device apbgreth;
+  struct ambapp_dev *adev;
+  struct ambapp_apb_info *apb;
 
   /* Scan for MAC AHB slave interface */
-	device_found = amba_find_apbslv(&amba_conf,VENDOR_GAISLER,GAISLER_ETHMAC,&apbgreth);
-  if (device_found == 1)
-  {
-		base_addr = apbgreth.start;
-		eth_irq = apbgreth.irq;
+  adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_APB_SLVS),
+                                 VENDOR_GAISLER, GAISLER_ETHMAC,
+                                 ambapp_find_by_idx, NULL);
+  if (adev) {
+    apb = DEV_TO_APB(adev);
+    base_addr = apb->start;
+    eth_irq = apb->irq;
 
     /* clear control register and reset NIC */
     *(volatile int *) base_addr = 0;
diff --git a/c/src/lib/libbsp/sparc/leon3/leon_open_eth/leon_open_eth.c b/c/src/lib/libbsp/sparc/leon3/leon_open_eth/leon_open_eth.c
index 5799f83..a6bb848 100644
--- a/c/src/lib/libbsp/sparc/leon3/leon_open_eth/leon_open_eth.c
+++ b/c/src/lib/libbsp/sparc/leon3/leon_open_eth/leon_open_eth.c
@@ -31,31 +31,27 @@ int rtems_leon_open_eth_driver_attach(
   int attach
 )
 {
-  int device_found = 0;
-  int i;
-  unsigned int conf, iobar;
   unsigned int base_addr = 0; /* avoid warnings */
   unsigned int eth_irq = 0;   /* avoid warnings */
-
+  struct ambapp_dev *adev;
+  struct ambapp_ahb_info *ahb;
 
   /* Scan for MAC AHB slave interface */
-  for (i = 0; i < amba_conf.ahbslv.devnr; i++)
-  {
-    conf = amba_get_confword(amba_conf.ahbslv, i, 0);
-    if (((amba_vendor(conf) == VENDOR_OPENCORES) && (amba_device(conf) == OPENCORES_ETHMAC)) ||
-        ((amba_vendor(conf) == VENDOR_GAISLER) && (amba_device(conf) == GAISLER_ETHAHB)))
-    {
-      iobar = amba_ahb_get_membar(amba_conf.ahbslv, i, 0);
-      base_addr = amba_iobar_start(LEON3_IO_AREA, iobar);
-      eth_irq = amba_irq(conf);
-      device_found = 1;
-      break;
-    }
+  adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_AHB_SLVS),
+                                 VENDOR_OPENCORES, OPENCORES_ETHMAC,
+                                 ambapp_find_by_idx, NULL);
+  if (!adev) {
+    adev = (void *)ambapp_for_each(&ambapp_plb, (OPTIONS_ALL|OPTIONS_AHB_SLVS),
+                                   VENDOR_GAISLER, GAISLER_ETHAHB,
+                                   ambapp_find_by_idx, NULL);
   }
 
-
-  if (device_found)
+  if (adev)
   {
+    ahb = DEV_TO_AHB(adev);
+    base_addr = ahb->start[0];
+    eth_irq = ahb->irq;
+
     /* clear control register and reset NIC */
     *(volatile int *) base_addr = 0;
     *(volatile int *) base_addr = 0x800;
@@ -65,7 +61,8 @@ int rtems_leon_open_eth_driver_attach(
     leon_open_eth_configuration.txd_count = TDA_COUNT;
     leon_open_eth_configuration.rxd_count = RDA_COUNT;
     /* enable 100 MHz operation only if cpu frequency >= 50 MHz */
-    if (LEON3_Timer_Regs->scaler_reload >= 49) leon_open_eth_configuration.en100MHz = 1;
+    if (LEON3_Timer_Regs->scaler_reload >= 49)
+      leon_open_eth_configuration.en100MHz = 1;
     if (rtems_open_eth_driver_attach( config, &leon_open_eth_configuration )) {
       LEON_Clear_interrupt(eth_irq);
       LEON_Unmask_interrupt(eth_irq);
diff --git a/c/src/lib/libbsp/sparc/leon3/leon_smc91111/leon_smc91111.c b/c/src/lib/libbsp/sparc/leon3/leon_smc91111/leon_smc91111.c
index 841c4b6..9e582fb 100644
--- a/c/src/lib/libbsp/sparc/leon3/leon_smc91111/leon_smc91111.c
+++ b/c/src/lib/libbsp/sparc/leon3/leon_smc91111/leon_smc91111.c
@@ -1,11 +1,14 @@
-/*
- *  $Id$
+/*  LEON3 BSP SMC91111 registration and low-level initialization
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
  */
 
 #include <bsp.h>
 #include <libchip/smc91111exp.h>
 #include <rtems/bspIo.h>
-
+#include <ambapp.h>
 
 #define SMC91111_BASE_ADDR (void*)0x20000300
 #define SMC91111_BASE_IRQ  4
@@ -32,21 +35,29 @@ rtems_smc91111_driver_attach_leon3 (struct rtems_bsdnet_ifconfig *config,
 {
   unsigned long addr_mctrl = 0;
   LEON3_IOPORT_Regs_Map *io;
+  struct ambapp_apb_info apbpio;
+  struct ambapp_apb_info apbmctrl;
 
-  amba_apb_device apbpio;
-  amba_ahb_device apbmctrl;
-
-  if ( amba_find_apbslv(&amba_conf,VENDOR_GAISLER,GAISLER_PIOPORT,&apbpio) != 1 ){
+  if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_GPIO, &apbpio)
+      != 1) {
     printk("SMC9111_leon3: didn't find PIO\n");
     return 0;
   }
 
-  /* Find LEON2 memory controller */
-  if ( amba_find_ahbslv(&amba_conf,VENDOR_ESA,ESA_MCTRL,&apbmctrl) != 1 ){
-    /* LEON2 memory controller not found, search for fault tolerant memory controller */
-    if ( amba_find_ahbslv(&amba_conf,VENDOR_GAISLER,GAISLER_FTMCTRL,&apbmctrl) != 1 ) {
-      printk("SMC9111_leon3: didn't find any memory controller\n");
-      return 0;
+  /* In order to access the SMC controller the memory controller must have
+   * I/O bus enabled. Find first memory controller.
+   */
+  if (ambapp_find_apbslv(&ambapp_plb, VENDOR_ESA, ESA_MCTRL, &apbmctrl) != 1) {
+    if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_FTMCTRL,
+                           &apbmctrl) != 1) {
+      if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_FTSRCTRL,
+                             &apbmctrl) != 1) {
+        if (ambapp_find_apbslv(&ambapp_plb, VENDOR_GAISLER, GAISLER_FTSRCTRL8,
+                               &apbmctrl) != 1) {
+          printk("SMC9111_leon3: didn't find any memory controller\n");
+          return 0;
+        }
+      }
     }
   }
 
@@ -68,6 +79,5 @@ rtems_smc91111_driver_attach_leon3 (struct rtems_bsdnet_ifconfig *config,
   /* Setup memory controller I/O waitstates */
   *((volatile unsigned int *) addr_mctrl) |= 0x10f80000;	/* enable I/O area access */
 
-    return _rtems_smc91111_driver_attach (config,
-            &leon_scmv91111_configuration);
+  return _rtems_smc91111_driver_attach(config, &leon_scmv91111_configuration);
 };
-- 
1.7.0.4



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