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authorLennert Buytenhek <buytenh@wantstofly.org>2006-06-22 10:30:56 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-22 10:30:56 +0100
commit8b76a68c6caafef5a91cdc80958aecaca76a8896 (patch)
treef22a684595267ee6b087381a00a543f46482c8a1 /arch/arm/common
parent744da2cb598639767ddcc90ca855771bc524fe76 (diff)
[ARM] 3620/2: ixp23xx: add uengine loader support
Patch from Lennert Buytenhek This patch allows the ixp2000 uengine loader that is already in the tree to also be used on the ixp23xx. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/common')
-rw-r--r--arch/arm/common/Makefile1
-rw-r--r--arch/arm/common/uengine.c58
2 files changed, 49 insertions, 10 deletions
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 847e3e6356c..e1289a256ce 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -16,3 +16,4 @@ obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o
obj-$(CONFIG_SHARPSL_PM) += sharpsl_pm.o
obj-$(CONFIG_SHARP_SCOOP) += scoop.o
obj-$(CONFIG_ARCH_IXP2000) += uengine.o
+obj-$(CONFIG_ARCH_IXP23XX) += uengine.o
diff --git a/arch/arm/common/uengine.c b/arch/arm/common/uengine.c
index a1310b71004..dfca596a9a2 100644
--- a/arch/arm/common/uengine.c
+++ b/arch/arm/common/uengine.c
@@ -18,10 +18,26 @@
#include <linux/module.h>
#include <linux/string.h>
#include <asm/hardware.h>
-#include <asm/arch/ixp2000-regs.h>
+#include <asm/arch/hardware.h>
#include <asm/hardware/uengine.h>
#include <asm/io.h>
+#if defined(CONFIG_ARCH_IXP2000)
+#define IXP_UENGINE_CSR_VIRT_BASE IXP2000_UENGINE_CSR_VIRT_BASE
+#define IXP_PRODUCT_ID IXP2000_PRODUCT_ID
+#define IXP_MISC_CONTROL IXP2000_MISC_CONTROL
+#define IXP_RESET1 IXP2000_RESET1
+#else
+#if defined(CONFIG_ARCH_IXP23XX)
+#define IXP_UENGINE_CSR_VIRT_BASE IXP23XX_UENGINE_CSR_VIRT_BASE
+#define IXP_PRODUCT_ID IXP23XX_PRODUCT_ID
+#define IXP_MISC_CONTROL IXP23XX_MISC_CONTROL
+#define IXP_RESET1 IXP23XX_RESET1
+#else
+#error unknown platform
+#endif
+#endif
+
#define USTORE_ADDRESS 0x000
#define USTORE_DATA_LOWER 0x004
#define USTORE_DATA_UPPER 0x008
@@ -43,7 +59,7 @@ u32 ixp2000_uengine_mask;
static void *ixp2000_uengine_csr_area(int uengine)
{
- return ((void *)IXP2000_UENGINE_CSR_VIRT_BASE) + (uengine << 10);
+ return ((void *)IXP_UENGINE_CSR_VIRT_BASE) + (uengine << 10);
}
/*
@@ -91,8 +107,13 @@ EXPORT_SYMBOL(ixp2000_uengine_csr_write);
void ixp2000_uengine_reset(u32 uengine_mask)
{
- ixp2000_reg_wrb(IXP2000_RESET1, uengine_mask & ixp2000_uengine_mask);
- ixp2000_reg_wrb(IXP2000_RESET1, 0);
+ u32 value;
+
+ value = ixp2000_reg_read(IXP_RESET1) & ~ixp2000_uengine_mask;
+
+ uengine_mask &= ixp2000_uengine_mask;
+ ixp2000_reg_wrb(IXP_RESET1, value | uengine_mask);
+ ixp2000_reg_wrb(IXP_RESET1, value);
}
EXPORT_SYMBOL(ixp2000_uengine_reset);
@@ -235,11 +256,12 @@ static int check_ixp_type(struct ixp2000_uengine_code *c)
u32 product_id;
u32 rev;
- product_id = ixp2000_reg_read(IXP2000_PRODUCT_ID);
+ product_id = ixp2000_reg_read(IXP_PRODUCT_ID);
if (((product_id >> 16) & 0x1f) != 0)
return 0;
switch ((product_id >> 8) & 0xff) {
+#ifdef CONFIG_ARCH_IXP2000
case 0: /* IXP2800 */
if (!(c->cpu_model_bitmask & 4))
return 0;
@@ -254,6 +276,14 @@ static int check_ixp_type(struct ixp2000_uengine_code *c)
if (!(c->cpu_model_bitmask & 2))
return 0;
break;
+#endif
+
+#ifdef CONFIG_ARCH_IXP23XX
+ case 4: /* IXP23xx */
+ if (!(c->cpu_model_bitmask & 0x3f0))
+ return 0;
+ break;
+#endif
default:
return 0;
@@ -432,7 +462,8 @@ static int __init ixp2000_uengine_init(void)
/*
* Determine number of microengines present.
*/
- switch ((ixp2000_reg_read(IXP2000_PRODUCT_ID) >> 8) & 0x1fff) {
+ switch ((ixp2000_reg_read(IXP_PRODUCT_ID) >> 8) & 0x1fff) {
+#ifdef CONFIG_ARCH_IXP2000
case 0: /* IXP2800 */
case 1: /* IXP2850 */
ixp2000_uengine_mask = 0x00ff00ff;
@@ -441,10 +472,17 @@ static int __init ixp2000_uengine_init(void)
case 2: /* IXP2400 */
ixp2000_uengine_mask = 0x000f000f;
break;
+#endif
+
+#ifdef CONFIG_ARCH_IXP23XX
+ case 4: /* IXP23xx */
+ ixp2000_uengine_mask = (*IXP23XX_EXP_CFG_FUSE >> 8) & 0xf;
+ break;
+#endif
default:
printk(KERN_INFO "Detected unknown IXP2000 model (%.8x)\n",
- (unsigned int)ixp2000_reg_read(IXP2000_PRODUCT_ID));
+ (unsigned int)ixp2000_reg_read(IXP_PRODUCT_ID));
ixp2000_uengine_mask = 0x00000000;
break;
}
@@ -457,15 +495,15 @@ static int __init ixp2000_uengine_init(void)
/*
* Synchronise timestamp counters across all microengines.
*/
- value = ixp2000_reg_read(IXP2000_MISC_CONTROL);
- ixp2000_reg_wrb(IXP2000_MISC_CONTROL, value & ~0x80);
+ value = ixp2000_reg_read(IXP_MISC_CONTROL);
+ ixp2000_reg_wrb(IXP_MISC_CONTROL, value & ~0x80);
for (uengine = 0; uengine < 32; uengine++) {
if (ixp2000_uengine_mask & (1 << uengine)) {
ixp2000_uengine_csr_write(uengine, TIMESTAMP_LOW, 0);
ixp2000_uengine_csr_write(uengine, TIMESTAMP_HIGH, 0);
}
}
- ixp2000_reg_wrb(IXP2000_MISC_CONTROL, value | 0x80);
+ ixp2000_reg_wrb(IXP_MISC_CONTROL, value | 0x80);
return 0;
}