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author | Olof Johansson <olof@lixom.net> | 2012-02-07 15:20:38 -0800 |
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committer | Olof Johansson <olof@lixom.net> | 2012-02-07 15:20:38 -0800 |
commit | d052e161c4067cf21daacb1de960a1e449babfe4 (patch) | |
tree | 7a2c24d269b5b631439d4d02345feeec98977ece /arch/arm/mach-mxs/include | |
parent | a5f17d1f4c2831b9b9bf8b1a537cdbac995d6e13 (diff) | |
parent | 79ce72aa2cf205cc1c1f7d9e898141c4d67da4af (diff) | |
download | op-kernel-dev-d052e161c4067cf21daacb1de960a1e449babfe4.zip op-kernel-dev-d052e161c4067cf21daacb1de960a1e449babfe4.tar.gz |
Merge branch 'mxs/boards' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/boards
* 'mxs/boards' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: mxs: Add initial support for Bluegiga APX4 Development Kit
ARM: mxs: read correct values when setting up MAC
ARM: mx28evk: Simplify GPIO requests
ARM: mx28: Remove duplicate OCOTP error message
ARM: mxs: detect SoC by checking CHIPID register
Diffstat (limited to 'arch/arm/mach-mxs/include')
-rw-r--r-- | arch/arm/mach-mxs/include/mach/digctl.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-mxs/include/mach/mxs.h | 29 | ||||
-rw-r--r-- | arch/arm/mach-mxs/include/mach/uncompress.h | 13 |
3 files changed, 23 insertions, 20 deletions
diff --git a/arch/arm/mach-mxs/include/mach/digctl.h b/arch/arm/mach-mxs/include/mach/digctl.h index 49a888c..1796406 100644 --- a/arch/arm/mach-mxs/include/mach/digctl.h +++ b/arch/arm/mach-mxs/include/mach/digctl.h @@ -18,4 +18,5 @@ #define HW_DIGCTL_CTRL 0x0 #define BP_DIGCTL_CTRL_SAIF_CLKMUX 10 #define BM_DIGCTL_CTRL_SAIF_CLKMUX (0x3 << 10) +#define HW_DIGCTL_CHIPID 0x310 #endif diff --git a/arch/arm/mach-mxs/include/mach/mxs.h b/arch/arm/mach-mxs/include/mach/mxs.h index bde5f66..7d4fb6d 100644 --- a/arch/arm/mach-mxs/include/mach/mxs.h +++ b/arch/arm/mach-mxs/include/mach/mxs.h @@ -23,22 +23,10 @@ #include <linux/io.h> #endif #include <asm/mach-types.h> +#include <mach/digctl.h> #include <mach/hardware.h> /* - * MXS CPU types - */ -#define cpu_is_mx23() ( \ - machine_is_mx23evk() || \ - machine_is_stmp378x() || \ - 0) -#define cpu_is_mx28() ( \ - machine_is_mx28evk() || \ - machine_is_m28evk() || \ - machine_is_tx28() || \ - 0) - -/* * IO addresses common to MXS-based */ #define MXS_IO_BASE_ADDR 0x80000000 @@ -109,6 +97,21 @@ static inline void __mxs_togl(u32 mask, void __iomem *reg) { __raw_writel(mask, reg + MXS_TOG_ADDR); } + +/* + * MXS CPU types + */ +#define MXS_CHIPID (MXS_IO_ADDRESS(MXS_DIGCTL_BASE_ADDR) + HW_DIGCTL_CHIPID) + +static inline int cpu_is_mx23(void) +{ + return ((__raw_readl(MXS_CHIPID) >> 16) == 0x3780); +} + +static inline int cpu_is_mx28(void) +{ + return ((__raw_readl(MXS_CHIPID) >> 16) == 0x2800); +} #endif #endif /* __MACH_MXS_H__ */ diff --git a/arch/arm/mach-mxs/include/mach/uncompress.h b/arch/arm/mach-mxs/include/mach/uncompress.h index 6777674..ef28114 100644 --- a/arch/arm/mach-mxs/include/mach/uncompress.h +++ b/arch/arm/mach-mxs/include/mach/uncompress.h @@ -18,8 +18,6 @@ #ifndef __MACH_MXS_UNCOMPRESS_H__ #define __MACH_MXS_UNCOMPRESS_H__ -#include <asm/mach-types.h> - unsigned long mxs_duart_base; #define MXS_DUART(x) (*(volatile unsigned long *)(mxs_duart_base + (x))) @@ -55,16 +53,17 @@ static inline void flush(void) #define MX23_DUART_BASE_ADDR 0x80070000 #define MX28_DUART_BASE_ADDR 0x80074000 +#define MXS_DIGCTL_CHIPID 0x8001c310 static inline void __arch_decomp_setup(unsigned long arch_id) { - switch (arch_id) { - case MACH_TYPE_MX23EVK: + u16 chipid = (*(volatile unsigned long *) MXS_DIGCTL_CHIPID) >> 16; + + switch (chipid) { + case 0x3780: mxs_duart_base = MX23_DUART_BASE_ADDR; break; - case MACH_TYPE_MX28EVK: - case MACH_TYPE_M28EVK: - case MACH_TYPE_TX28: + case 0x2800: mxs_duart_base = MX28_DUART_BASE_ADDR; break; default: |