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authorKumar Gala <galak@kernel.crashing.org>2010-12-30 12:09:53 -0600
committerKumar Gala <galak@kernel.crashing.org>2011-01-14 01:32:21 -0600
commita09b9b68d492e978ef0e14cae93ff9cfbc2d3e4b (patch)
tree07f0d677a4d7ac227abc90cdbbd90d306641f76e /arch/powerpc/cpu
parent213ac73e2caff8b477c31f85d8132f8cc116f366 (diff)
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powerpc/8xxx: Refactor SRIO initialization into common code
Moved the SRIO init out of corenet_ds and into common code for 8xxx/QorIQ processors that have SRIO. We mimic what we do with PCIe controllers for SRIO. We utilize the fact that SRIO is over serdes to determine if its configured or not and thus can setup the LAWs needed for it dynamically. We additionally update the device tree (to remove the SRIO nodes) if the board doesn't have SRIO enabled. Introduced the following standard defines for board config.h: CONFIG_SYS_SRIO - Chip has SRIO or not CONFIG_SRIO1 - Board has SRIO 1 port available CONFIG_SRIO2 - Board has SRIO 2 port available (where 'n' is the port #) CONFIG_SYS_SRIOn_MEM_VIRT - virtual address in u-boot CONFIG_SYS_SRIOn_MEM_PHYS - physical address (for law setup) CONFIG_SYS_SRIOn_MEM_SIZE - size of window (for law setup) [ These mimic what we have for PCI and PCIe controllers ] Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'arch/powerpc/cpu')
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu_init.c8
-rw-r--r--arch/powerpc/cpu/mpc85xx/fdt.c7
-rw-r--r--arch/powerpc/cpu/mpc8xxx/Makefile1
-rw-r--r--arch/powerpc/cpu/mpc8xxx/fdt.c23
-rw-r--r--arch/powerpc/cpu/mpc8xxx/srio.c86
5 files changed, 122 insertions, 3 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index 4a6cc65..1d016c4 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2007-2010 Freescale Semiconductor, Inc.
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
*
* (C) Copyright 2003 Motorola Inc.
* Modified by Xianghua Xiao, X.Xiao@motorola.com
@@ -40,6 +40,8 @@
DECLARE_GLOBAL_DATA_PTR;
+extern void srio_init(void);
+
#ifdef CONFIG_QE
extern qe_iop_conf_t qe_iop_conf_tab[];
extern void qe_config_iopin(u8 port, u8 pin, int dir,
@@ -384,6 +386,10 @@ int cpu_init_r(void)
/* needs to be in ram since code uses global static vars */
fsl_serdes_init();
+#ifdef CONFIG_SYS_SRIO
+ srio_init();
+#endif
+
#if defined(CONFIG_MP)
setup_mp();
#endif
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c
index 53e0596..00fa752 100644
--- a/arch/powerpc/cpu/mpc85xx/fdt.c
+++ b/arch/powerpc/cpu/mpc85xx/fdt.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2007-2010 Freescale Semiconductor, Inc.
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
@@ -38,6 +38,7 @@ DECLARE_GLOBAL_DATA_PTR;
extern void ft_qe_setup(void *blob);
extern void ft_fixup_num_cores(void *blob);
+extern void ft_srio_setup(void *blob);
#ifdef CONFIG_MP
#include "mp.h"
@@ -478,4 +479,8 @@ void ft_cpu_setup(void *blob, bd_t *bd)
fdt_fixup_qportals(blob);
#endif
+
+#ifdef CONFIG_SYS_SRIO
+ ft_srio_setup(blob);
+#endif
}
diff --git a/arch/powerpc/cpu/mpc8xxx/Makefile b/arch/powerpc/cpu/mpc8xxx/Makefile
index 95c73be..5dfd65b 100644
--- a/arch/powerpc/cpu/mpc8xxx/Makefile
+++ b/arch/powerpc/cpu/mpc8xxx/Makefile
@@ -16,6 +16,7 @@ endif
COBJS-$(CONFIG_OF_LIBFDT) += fdt.o
COBJS-$(CONFIG_FSL_LBC) += fsl_lbc.o
+COBJS-$(CONFIG_SYS_SRIO) += srio.o
SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
diff --git a/arch/powerpc/cpu/mpc8xxx/fdt.c b/arch/powerpc/cpu/mpc8xxx/fdt.c
index 54e60bb..0c166fd 100644
--- a/arch/powerpc/cpu/mpc8xxx/fdt.c
+++ b/arch/powerpc/cpu/mpc8xxx/fdt.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
*
* This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
* arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
@@ -28,6 +28,7 @@
#include <fdt_support.h>
#include <asm/mp.h>
#include <asm/fsl_enet.h>
+#include <asm/fsl_serdes.h>
#if defined(CONFIG_MP) && (defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx))
static int ft_del_cpuhandle(void *blob, int cpuhandle)
@@ -239,3 +240,23 @@ int fdt_fixup_phy_connection(void *blob, int offset, enum fsl_phy_enet_if phyc)
return fdt_setprop_string(blob, offset, "phy-connection-type",
fsl_phy_enet_if_str[phyc]);
}
+
+#ifdef CONFIG_SYS_SRIO
+void ft_srio_setup(void *blob)
+{
+#ifdef CONFIG_SRIO1
+ if (!is_serdes_configured(SRIO1)) {
+ fdt_del_node_and_alias(blob, "rio0");
+ }
+#else
+ fdt_del_node_and_alias(blob, "rio0");
+#endif
+#ifdef CONFIG_SRIO2
+ if (!is_serdes_configured(SRIO2)) {
+ fdt_del_node_and_alias(blob, "rio1");
+ }
+#else
+ fdt_del_node_and_alias(blob, "rio1");
+#endif
+}
+#endif
diff --git a/arch/powerpc/cpu/mpc8xxx/srio.c b/arch/powerpc/cpu/mpc8xxx/srio.c
new file mode 100644
index 0000000..e46d328
--- /dev/null
+++ b/arch/powerpc/cpu/mpc8xxx/srio.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_serdes.h>
+
+#if defined(CONFIG_FSL_CORENET)
+ #define _DEVDISR_SRIO1 FSL_CORENET_DEVDISR_SRIO1
+ #define _DEVDISR_SRIO2 FSL_CORENET_DEVDISR_SRIO2
+ #define _DEVDISR_RMU FSL_CORENET_DEVDISR_RMU
+ #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
+#elif defined(CONFIG_MPC85xx)
+ #define _DEVDISR_SRIO1 MPC85xx_DEVDISR_SRIO
+ #define _DEVDISR_SRIO2 MPC85xx_DEVDISR_SRIO
+ #define _DEVDISR_RMU MPC85xx_DEVDISR_RMSG
+ #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
+#elif defined(CONFIG_MPC86xx)
+ #define _DEVDISR_SRIO1 MPC86xx_DEVDISR_SRIO
+ #define _DEVDISR_SRIO2 MPC86xx_DEVDISR_SRIO
+ #define _DEVDISR_RMU MPC86xx_DEVDISR_RMSG
+ #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \
+ (&((immap_t *)CONFIG_SYS_IMMR)->im_gur)
+#else
+#error "No defines for DEVDISR_SRIO"
+#endif
+
+void srio_init(void)
+{
+ ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR;
+ int srio1_used = 0, srio2_used = 0;
+
+ if (is_serdes_configured(SRIO1)) {
+ set_next_law(CONFIG_SYS_SRIO1_MEM_PHYS,
+ law_size_bits(CONFIG_SYS_SRIO1_MEM_SIZE),
+ LAW_TRGT_IF_RIO_1);
+ srio1_used = 1;
+ printf("SRIO1: enabled\n");
+ } else {
+ printf("SRIO1: disabled\n");
+ }
+
+#ifdef CONFIG_SRIO2
+ if (is_serdes_configured(SRIO2)) {
+ set_next_law(CONFIG_SYS_SRIO2_MEM_PHYS,
+ law_size_bits(CONFIG_SYS_SRIO2_MEM_SIZE),
+ LAW_TRGT_IF_RIO_2);
+ srio2_used = 1;
+ printf("SRIO2: enabled\n");
+ } else {
+ printf("SRIO2: disabled\n");
+ }
+#endif
+
+#ifdef CONFIG_FSL_CORENET
+ /* On FSL_CORENET devices we can disable individual ports */
+ if (!srio1_used)
+ setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO1);
+ if (!srio2_used)
+ setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO2);
+#endif
+
+ /* neither port is used - disable everything */
+ if (!srio1_used && !srio2_used) {
+ setbits_be32(&gur->devdisr, _DEVDISR_SRIO1);
+ setbits_be32(&gur->devdisr, _DEVDISR_SRIO2);
+ setbits_be32(&gur->devdisr, _DEVDISR_RMU);
+ }
+}