[PATCH] ppc32: ppc_sys fixes for 8xx and 82xx

This patch fixes a numbers of issues regarding to that both 8xx and 82xx
began to use ppc_sys model:
	- Platform is now identified by default deviceless SOC, if no
BOARD_CHIP_NAME is specified in the bard-specific header. For the list
of supported names refer to (arch/ppc/syslib/) mpc8xx_sys.c and
mpc82xx_sys.c for 8xx and 82xx respectively.
	- Fixed a bug in identification by name - if the name was not found,
it returned -1 instead of default deviceless ppc_spec.
	- fixed devices amount in the 8xx platform system descriptions

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

9 files changed, 26 insertions, 2 deletions

diff --git a/arch/ppc/platforms/fads.h b/arch/ppc/platforms/fads.h
index b60c56450b67..a48fb8d723e4 100644
--- a/arch/ppc/platforms/fads.h
+++ b/arch/ppc/platforms/fads.h
@@ -25,6 +25,8 @@
 
 #if defined(CONFIG_MPC86XADS)
 
+#define BOARD_CHIP_NAME "MPC86X"
+
 /* U-Boot maps BCSR to 0xff080000 */
 #define BCSR_ADDR               ((uint)0xff080000)
 
diff --git a/arch/ppc/platforms/mpc885ads.h b/arch/ppc/platforms/mpc885ads.h
index eb386635b0fd..a80b7d116b49 100644
--- a/arch/ppc/platforms/mpc885ads.h
+++ b/arch/ppc/platforms/mpc885ads.h
@@ -88,5 +88,7 @@
 #define SICR_ENET_MASK  ((uint)0x00ff0000)
 #define SICR_ENET_CLKRT ((uint)0x002c0000)
 
+#define BOARD_CHIP_NAME "MPC885"
+
 #endif /* __ASM_MPC885ADS_H__ */
 #endif /* __KERNEL__ */
diff --git a/arch/ppc/syslib/m8260_setup.c b/arch/ppc/syslib/m8260_setup.c
index 8f80a42dfdb7..76a2aa4ce65e 100644
--- a/arch/ppc/syslib/m8260_setup.c
+++ b/arch/ppc/syslib/m8260_setup.c
@@ -62,6 +62,10 @@ m8260_setup_arch(void)
         if (initrd_start)
                 ROOT_DEV = Root_RAM0;
 #endif
+
+        identify_ppc_sys_by_name_and_id(BOARD_CHIP_NAME,
+                                in_be32(CPM_MAP_ADDR + CPM_IMMR_OFFSET));
+
         m82xx_board_setup();
 }
 
diff --git a/arch/ppc/syslib/m8xx_setup.c b/arch/ppc/syslib/m8xx_setup.c
index a192719929d3..97ffbc70574f 100644
--- a/arch/ppc/syslib/m8xx_setup.c
+++ b/arch/ppc/syslib/m8xx_setup.c
@@ -399,6 +399,8 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
                 strcpy(cmd_line, (char *)(r6+KERNELBASE));
         }
 
+        identify_ppc_sys_by_name(BOARD_CHIP_NAME);
+
         ppc_md.setup_arch               = m8xx_setup_arch;
         ppc_md.show_percpuinfo          = m8xx_show_percpuinfo;
         ppc_md.init_IRQ                 = m8xx_init_IRQ;
diff --git a/arch/ppc/syslib/mpc8xx_sys.c b/arch/ppc/syslib/mpc8xx_sys.c
index a532ccc861c0..3cc27d29e3af 100644
--- a/arch/ppc/syslib/mpc8xx_sys.c
+++ b/arch/ppc/syslib/mpc8xx_sys.c
@@ -24,7 +24,7 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                 .ppc_sys_name   = "MPC86X",
                 .mask           = 0xFFFFFFFF,
                 .value          = 0x00000000,
-                .num_devices    = 2,
+                .num_devices    = 7,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC8xx_CPM_FEC1,
@@ -40,7 +40,7 @@ struct ppc_sys_spec ppc_sys_specs[] = {
                 .ppc_sys_name   = "MPC885",
                 .mask           = 0xFFFFFFFF,
                 .value          = 0x00000000,
-                .num_devices    = 3,
+                .num_devices    = 8,
                 .device_list    = (enum ppc_sys_devices[])
                 {
                         MPC8xx_CPM_FEC1,
diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c
index 52ba0c68078d..62ee86e80711 100644
--- a/arch/ppc/syslib/ppc_sys.c
+++ b/arch/ppc/syslib/ppc_sys.c
@@ -69,6 +69,9 @@ static int __init find_chip_by_name_and_id(char *name, u32 id)
                         matched[j++] = i;
                 i++;
         }
+
+        ret = i;
+
         if (j != 0) {
                 for (i = 0; i < j; i++) {
                         if ((ppc_sys_specs[matched[i]].mask & id) ==
diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h
index 9483d4bfacf7..43d2ebbc7748 100644
--- a/include/asm-ppc/cpm2.h
+++ b/include/asm-ppc/cpm2.h
@@ -1087,6 +1087,9 @@ typedef struct im_idma {
 #define SCCR_PCIDF_MSK  0x00000078      /* PCI division factor  */
 #define SCCR_PCIDF_SHIFT 3
 
+#ifndef CPM_IMMR_OFFSET
+#define CPM_IMMR_OFFSET 0x101a8
+#endif
 
 #endif /* __CPM2__ */
 #endif /* __KERNEL__ */
diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h
index 9694eca16e92..321452695039 100644
--- a/include/asm-ppc/mpc8260.h
+++ b/include/asm-ppc/mpc8260.h
@@ -92,6 +92,10 @@ enum ppc_sys_devices {
 extern unsigned char __res[];
 #endif
 
+#ifndef BOARD_CHIP_NAME
+#define BOARD_CHIP_NAME ""
+#endif
+
 #endif /* CONFIG_8260 */
 #endif /* !__ASM_PPC_MPC8260_H__ */
 #endif /* __KERNEL__ */
diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h
index 208a2e11daee..46f159cf589e 100644
--- a/include/asm-ppc/mpc8xx.h
+++ b/include/asm-ppc/mpc8xx.h
@@ -113,6 +113,10 @@ enum ppc_sys_devices {
         MPC8xx_CPM_USB,
 };
 
+#ifndef BOARD_CHIP_NAME
+#define BOARD_CHIP_NAME ""
+#endif
+
 #endif /* !__ASSEMBLY__ */
 #endif /* CONFIG_8xx */
 #endif /* __CONFIG_8xx_DEFS */