diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 20:31:25 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 20:31:25 -0700 |
commit | 16ee792e45cf0c97ce061fce03c36cab5551ec72 (patch) | |
tree | dc68af705fbac4b5d71325aa972730199bb187dd /arch/arm/mach-imx/cpu-imx31.c | |
parent | f906fb1d70e016726fccfb0d978c5d425503db9d (diff) | |
parent | efa62e1355f0495f37f1296754b8880947c8da72 (diff) |
Merge branch 'next/devel' of git://git.linaro.org/people/arnd/arm-soc
* 'next/devel' of git://git.linaro.org/people/arnd/arm-soc: (50 commits)
ARM: tegra: update defconfig
arm/tegra: Harmony: Configure PMC for low-level interrupts
arm/tegra: device tree support for ventana board
arm/tegra: add support for ventana pinmuxing
arm/tegra: prepare Seaboard pinmux code for derived boards
arm/tegra: pinmux: ioremap registers
gpio/tegra: Convert to a platform device
arm/tegra: Convert pinmux driver to a platform device
arm/dt: Tegra: Add pinmux node to tegra20.dtsi
arm/tegra: Prep boards for gpio/pinmux conversion to pdevs
ARM: mx5: fix clock usage for suspend
ARM i.MX entry-macro.S: remove now unused code
ARM i.MX boards: use CONFIG_MULTI_IRQ_HANDLER
ARM i.MX tzic: add handle_irq function
ARM i.MX avic: add handle_irq function
ARM: mx25: Add the missing IIM base definition
ARM i.MX avic: convert to use generic irq chip
mx31moboard: Add poweroff support
ARM: mach-qong: Add watchdog support
ARM: davinci: AM18x: Add wl1271/wlan support
...
Fix up conflicts in:
arch/arm/mach-at91/at91sam9g45.c
arch/arm/mach-mx5/devices-imx53.h
arch/arm/plat-mxc/include/mach/memory.h
Diffstat (limited to 'arch/arm/mach-imx/cpu-imx31.c')
-rw-r--r-- | arch/arm/mach-imx/cpu-imx31.c | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/arch/arm/mach-imx/cpu-imx31.c b/arch/arm/mach-imx/cpu-imx31.c index a3780700a88..3f2345f0cda 100644 --- a/arch/arm/mach-imx/cpu-imx31.c +++ b/arch/arm/mach-imx/cpu-imx31.c @@ -13,45 +13,50 @@ #include <linux/io.h> #include <mach/hardware.h> #include <mach/iim.h> +#include <mach/common.h> -unsigned int mx31_cpu_rev; -EXPORT_SYMBOL(mx31_cpu_rev); +static int mx31_cpu_rev = -1; static struct { u8 srev; const char *name; - const char *v; unsigned int rev; -} mx31_cpu_type[] __initdata = { - { .srev = 0x00, .name = "i.MX31(L)", .v = "1.0", .rev = IMX_CHIP_REVISION_1_0 }, - { .srev = 0x10, .name = "i.MX31", .v = "1.1", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x11, .name = "i.MX31L", .v = "1.1", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x12, .name = "i.MX31", .v = "1.15", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x13, .name = "i.MX31L", .v = "1.15", .rev = IMX_CHIP_REVISION_1_1 }, - { .srev = 0x14, .name = "i.MX31", .v = "1.2", .rev = IMX_CHIP_REVISION_1_2 }, - { .srev = 0x15, .name = "i.MX31L", .v = "1.2", .rev = IMX_CHIP_REVISION_1_2 }, - { .srev = 0x28, .name = "i.MX31", .v = "2.0", .rev = IMX_CHIP_REVISION_2_0 }, - { .srev = 0x29, .name = "i.MX31L", .v = "2.0", .rev = IMX_CHIP_REVISION_2_0 }, +} mx31_cpu_type[] = { + { .srev = 0x00, .name = "i.MX31(L)", .rev = IMX_CHIP_REVISION_1_0 }, + { .srev = 0x10, .name = "i.MX31", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x11, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x12, .name = "i.MX31", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x13, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_1_1 }, + { .srev = 0x14, .name = "i.MX31", .rev = IMX_CHIP_REVISION_1_2 }, + { .srev = 0x15, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_1_2 }, + { .srev = 0x28, .name = "i.MX31", .rev = IMX_CHIP_REVISION_2_0 }, + { .srev = 0x29, .name = "i.MX31L", .rev = IMX_CHIP_REVISION_2_0 }, }; -void __init mx31_read_cpu_rev(void) +static int mx31_read_cpu_rev(void) { u32 i, srev; /* read SREV register from IIM module */ srev = __raw_readl(MX31_IO_ADDRESS(MX31_IIM_BASE_ADDR + MXC_IIMSREV)); + srev &= 0xff; for (i = 0; i < ARRAY_SIZE(mx31_cpu_type); i++) if (srev == mx31_cpu_type[i].srev) { - printk(KERN_INFO - "CPU identified as %s, silicon rev %s\n", - mx31_cpu_type[i].name, mx31_cpu_type[i].v); - - mx31_cpu_rev = mx31_cpu_type[i].rev; - return; + imx_print_silicon_rev(mx31_cpu_type[i].name, + mx31_cpu_type[i].rev); + return mx31_cpu_type[i].rev; } - mx31_cpu_rev = IMX_CHIP_REVISION_UNKNOWN; + imx_print_silicon_rev("i.MX31", IMX_CHIP_REVISION_UNKNOWN); + return IMX_CHIP_REVISION_UNKNOWN; +} + +int mx31_revision(void) +{ + if (mx31_cpu_rev == -1) + mx31_cpu_rev = mx31_read_cpu_rev(); - printk(KERN_WARNING "Unknown CPU identifier. srev = %02x\n", srev); + return mx31_cpu_rev; } +EXPORT_SYMBOL(mx31_revision); |