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authorSascha Hauer <s.hauer@pengutronix.de>2010-03-25 10:44:12 +0300
committerSascha Hauer <s.hauer@pengutronix.de>2010-03-25 10:44:12 +0300
commit0491fcbb76339cecbe4b6b1e862fb0c166bacf2d (patch)
treebedf421a0ccabbef074460c36d8129eed43c0d7e /arch/arm
parentae7a3f13ab59784d9d5041d8ecb08477a049e2c6 (diff)
parentfc300206ad07e771ed003d35b1dc179eaf0c508f (diff)
downloadlinux-0491fcbb76339cecbe4b6b1e862fb0c166bacf2d.tar.xz
Merge branch 'mx51' into mxc-rc
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-mx5/clock-mx51.c2
-rw-r--r--arch/arm/mach-mx5/cpu.c53
-rw-r--r--arch/arm/mach-mx5/mm.c32
-rw-r--r--arch/arm/plat-mxc/include/mach/mx51.h33
-rw-r--r--arch/arm/plat-mxc/include/mach/uncompress.h4
5 files changed, 83 insertions, 41 deletions
diff --git a/arch/arm/mach-mx5/clock-mx51.c b/arch/arm/mach-mx5/clock-mx51.c
index be90c03101cd..8f85f73b83a8 100644
--- a/arch/arm/mach-mx5/clock-mx51.c
+++ b/arch/arm/mach-mx5/clock-mx51.c
@@ -757,7 +757,7 @@ DEFINE_CLOCK(uart3_ipg_clk, 2, MXC_CCM_CCGR1, MXC_CCM_CCGRx_CG7_OFFSET,
/* GPT */
DEFINE_CLOCK(gpt_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG9_OFFSET,
- NULL, NULL, &ipg_perclk, NULL);
+ NULL, NULL, &ipg_clk, NULL);
DEFINE_CLOCK(gpt_ipg_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG10_OFFSET,
NULL, NULL, &ipg_clk, NULL);
diff --git a/arch/arm/mach-mx5/cpu.c b/arch/arm/mach-mx5/cpu.c
index 41c769f08c4d..2d37785e3857 100644
--- a/arch/arm/mach-mx5/cpu.c
+++ b/arch/arm/mach-mx5/cpu.c
@@ -14,9 +14,62 @@
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/module.h>
#include <mach/hardware.h>
#include <asm/io.h>
+static int cpu_silicon_rev = -1;
+
+#define SI_REV 0x48
+
+static void query_silicon_parameter(void)
+{
+ void __iomem *rom = ioremap(MX51_IROM_BASE_ADDR, MX51_IROM_SIZE);
+ u32 rev;
+
+ if (!rom) {
+ cpu_silicon_rev = -EINVAL;
+ return;
+ }
+
+ rev = readl(rom + SI_REV);
+ switch (rev) {
+ case 0x1:
+ cpu_silicon_rev = MX51_CHIP_REV_1_0;
+ break;
+ case 0x2:
+ cpu_silicon_rev = MX51_CHIP_REV_1_1;
+ break;
+ case 0x10:
+ cpu_silicon_rev = MX51_CHIP_REV_2_0;
+ break;
+ case 0x20:
+ cpu_silicon_rev = MX51_CHIP_REV_3_0;
+ break;
+ default:
+ cpu_silicon_rev = 0;
+ }
+
+ iounmap(rom);
+}
+
+/*
+ * Returns:
+ * the silicon revision of the cpu
+ * -EINVAL - not a mx51
+ */
+int mx51_revision(void)
+{
+ if (!cpu_is_mx51())
+ return -EINVAL;
+
+ if (cpu_silicon_rev == -1)
+ query_silicon_parameter();
+
+ return cpu_silicon_rev;
+}
+EXPORT_SYMBOL(mx51_revision);
+
static int __init post_cpu_init(void)
{
unsigned int reg;
diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c
index c21e18be7af8..b7677ef80cc4 100644
--- a/arch/arm/mach-mx5/mm.c
+++ b/arch/arm/mach-mx5/mm.c
@@ -35,11 +35,6 @@ static struct map_desc mxc_io_desc[] __initdata = {
.length = MX51_DEBUG_SIZE,
.type = MT_DEVICE
}, {
- .virtual = MX51_TZIC_BASE_ADDR_VIRT,
- .pfn = __phys_to_pfn(MX51_TZIC_BASE_ADDR),
- .length = MX51_TZIC_SIZE,
- .type = MT_DEVICE
- }, {
.virtual = MX51_AIPS1_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(MX51_AIPS1_BASE_ADDR),
.length = MX51_AIPS1_SIZE,
@@ -54,11 +49,6 @@ static struct map_desc mxc_io_desc[] __initdata = {
.pfn = __phys_to_pfn(MX51_AIPS2_BASE_ADDR),
.length = MX51_AIPS2_SIZE,
.type = MT_DEVICE
- }, {
- .virtual = MX51_NFC_AXI_BASE_ADDR_VIRT,
- .pfn = __phys_to_pfn(MX51_NFC_AXI_BASE_ADDR),
- .length = MX51_NFC_AXI_SIZE,
- .type = MT_DEVICE
},
};
@@ -69,14 +59,6 @@ static struct map_desc mxc_io_desc[] __initdata = {
*/
void __init mx51_map_io(void)
{
- u32 tzic_addr;
-
- if (mx51_revision() < MX51_CHIP_REV_2_0)
- tzic_addr = 0x8FFFC000;
- else
- tzic_addr = 0xE0003000;
- mxc_io_desc[2].pfn = __phys_to_pfn(tzic_addr);
-
mxc_set_cpu_type(MXC_CPU_MX51);
mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG_BASE_ADDR));
@@ -85,5 +67,17 @@ void __init mx51_map_io(void)
void __init mx51_init_irq(void)
{
- tzic_init_irq(MX51_IO_ADDRESS(MX51_TZIC_BASE_ADDR));
+ unsigned long tzic_addr;
+ void __iomem *tzic_virt;
+
+ if (mx51_revision() < MX51_CHIP_REV_2_0)
+ tzic_addr = MX51_TZIC_BASE_ADDR_TO1;
+ else
+ tzic_addr = MX51_TZIC_BASE_ADDR;
+
+ tzic_virt = ioremap(tzic_addr, SZ_16K);
+ if (!tzic_virt)
+ panic("unable to map TZIC interrupt controller\n");
+
+ tzic_init_irq(tzic_virt);
}
diff --git a/arch/arm/plat-mxc/include/mach/mx51.h b/arch/arm/plat-mxc/include/mach/mx51.h
index 771532b6b4a6..5aad344d5651 100644
--- a/arch/arm/plat-mxc/include/mach/mx51.h
+++ b/arch/arm/plat-mxc/include/mach/mx51.h
@@ -14,7 +14,7 @@
* FB100000 70000000 1M SPBA 0
* FB000000 73F00000 1M AIPS 1
* FB200000 83F00000 1M AIPS 2
- * FA100000 8FFFC000 16K TZIC (interrupt controller)
+ * 8FFFC000 16K TZIC (interrupt controller)
* 90000000 256M CSD0 SDRAM/DDR
* A0000000 256M CSD1 SDRAM/DDR
* B0000000 128M CS0 Flash
@@ -23,11 +23,17 @@
* C8000000 64M CS3 Flash
* CC000000 32M CS4 SRAM
* CE000000 32M CS5 SRAM
- * F9000000 CFFF0000 64K NFC (NAND Flash AXI)
+ * CFFF0000 64K NFC (NAND Flash AXI)
*
*/
/*
+ * IROM
+ */
+#define MX51_IROM_BASE_ADDR 0x0
+#define MX51_IROM_SIZE SZ_64K
+
+/*
* IRAM
*/
#define MX51_IRAM_BASE_ADDR 0x1FFE0000 /* internal ram */
@@ -40,7 +46,6 @@
* NFC
*/
#define MX51_NFC_AXI_BASE_ADDR 0xCFFF0000 /* NAND flash AXI */
-#define MX51_NFC_AXI_BASE_ADDR_VIRT 0xF9000000
#define MX51_NFC_AXI_SIZE SZ_64K
/*
@@ -49,9 +54,8 @@
#define MX51_GPU_BASE_ADDR 0x20000000
#define MX51_GPU2D_BASE_ADDR 0xD0000000
-#define MX51_TZIC_BASE_ADDR 0x8FFFC000
-#define MX51_TZIC_BASE_ADDR_VIRT 0xFA100000
-#define MX51_TZIC_SIZE SZ_16K
+#define MX51_TZIC_BASE_ADDR_TO1 0x8FFFC000
+#define MX51_TZIC_BASE_ADDR 0xE0000000
#define MX51_DEBUG_BASE_ADDR 0x60000000
#define MX51_DEBUG_BASE_ADDR_VIRT 0xFA200000
@@ -232,12 +236,10 @@
#define MX51_IO_ADDRESS(x) \
(void __iomem *) \
(MX51_IS_MODULE(x, IRAM) ? MX51_IRAM_IO_ADDRESS(x) : \
- MX51_IS_MODULE(x, TZIC) ? MX51_TZIC_IO_ADDRESS(x) : \
MX51_IS_MODULE(x, DEBUG) ? MX51_DEBUG_IO_ADDRESS(x) : \
MX51_IS_MODULE(x, SPBA0) ? MX51_SPBA0_IO_ADDRESS(x) : \
MX51_IS_MODULE(x, AIPS1) ? MX51_AIPS1_IO_ADDRESS(x) : \
- MX51_IS_MODULE(x, AIPS2) ? MX51_AIPS2_IO_ADDRESS(x) : \
- MX51_IS_MODULE(x, NFC_AXI) ? MX51_NFC_AXI_IO_ADDRESS(x) : \
+ MX51_IS_MODULE(x, AIPS2) ? MX51_AIPS2_IO_ADDRESS(x) : \
0xDEADBEEF)
/*
@@ -246,9 +248,6 @@
#define MX51_IRAM_IO_ADDRESS(x) \
(((x) - MX51_IRAM_BASE_ADDR) + MX51_IRAM_BASE_ADDR_VIRT)
-#define MX51_TZIC_IO_ADDRESS(x) \
- (((x) - MX51_TZIC_BASE_ADDR) + MX51_TZIC_BASE_ADDR_VIRT)
-
#define MX51_DEBUG_IO_ADDRESS(x) \
(((x) - MX51_DEBUG_BASE_ADDR) + MX51_DEBUG_BASE_ADDR_VIRT)
@@ -261,9 +260,6 @@
#define MX51_AIPS2_IO_ADDRESS(x) \
(((x) - MX51_AIPS2_BASE_ADDR) + MX51_AIPS2_BASE_ADDR_VIRT)
-#define MX51_NFC_AXI_IO_ADDRESS(x) \
- (((x) - MX51_NFC_AXI_BASE_ADDR) + MX51_NFC_AXI_BASE_ADDR_VIRT)
-
#define MX51_IS_MEM_DEVICE_NONSHARED(x) 0
/*
@@ -443,12 +439,7 @@
#if !defined(__ASSEMBLY__) && !defined(__MXC_BOOT_UNCOMPRESS)
-extern unsigned int system_rev;
-
-static inline unsigned int mx51_revision(void)
-{
- return system_rev;
-}
+extern int mx51_revision(void);
#endif
#endif /* __ASM_ARCH_MXC_MX51_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
index 52e476a150ca..b6d3d0fddc48 100644
--- a/arch/arm/plat-mxc/include/mach/uncompress.h
+++ b/arch/arm/plat-mxc/include/mach/uncompress.h
@@ -66,6 +66,7 @@ static inline void flush(void)
#define MX2X_UART1_BASE_ADDR 0x1000a000
#define MX3X_UART1_BASE_ADDR 0x43F90000
#define MX3X_UART2_BASE_ADDR 0x43F94000
+#define MX51_UART1_BASE_ADDR 0x73fbc000
static __inline__ void __arch_decomp_setup(unsigned long arch_id)
{
@@ -101,6 +102,9 @@ static __inline__ void __arch_decomp_setup(unsigned long arch_id)
case MACH_TYPE_MAGX_ZN5:
uart_base = MX3X_UART2_BASE_ADDR;
break;
+ case MACH_TYPE_MX51_BABBAGE:
+ uart_base = MX51_UART1_BASE_ADDR;
+ break;
default:
break;
}