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author | Olof Johansson <olof@lixom.net> | 2012-11-30 10:47:30 +0400 |
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committer | Olof Johansson <olof@lixom.net> | 2012-11-30 10:47:30 +0400 |
commit | 77f9db89c928773e5fb1df0df4d13d5cc8abd178 (patch) | |
tree | 40be55deab65bf593b9831dc10318272283d8500 /arch/arm/mach-imx/mach-imx6q.c | |
parent | 68fb31706d50dd5d337cd7928aeb780358b910a5 (diff) | |
parent | 64507dd7028e3e0145077e73b8374bd75aea117c (diff) | |
download | linux-77f9db89c928773e5fb1df0df4d13d5cc8abd178.tar.xz |
Merge branch 'next/dt' into next/pm2
By Lee Jones (42) and others
via Olof Johansson (13) and others
* next/dt: (249 commits)
ARM: ux500: Rename dbx500 cpufreq code to be more generic
ARM: dts: add missing ux500 device trees
ARM: ux500: Stop registering the PCM driver from platform code
ARM: ux500: Move board specific GPIO info out to subordinate DTS files
ARM: ux500: Disable the MMCI gpio-regulator by default
ARM: Kirkwood: remove kirkwood_ehci_init() from new boards
ARM: Kirkwood: Add support LED of OpenBlocks A6
ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6
ARM: kirkwood: Add NAND partiton map for OpenBlocks A6
ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6
ARM: kirkwood: Add support DT of second I2C bus
ARM: kirkwood: Convert mplcec4 board to pinctrl
ARM: Kirkwood: Convert km_kirkwood to pinctrl
ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl
ARM: Kirkwood: Convert IX2-200 to pinctrl.
ARM: Kirkwood: Convert lsxl boards to pinctrl.
ARM: Kirkwood: Convert ib62x0 to pinctrl.
ARM: Kirkwood: Convert GoFlex Net to pinctrl.
ARM: Kirkwood: Convert dreamplug to pinctrl.
ARM: Kirkwood: Convert dockstar to pinctrl.
...
Diffstat (limited to 'arch/arm/mach-imx/mach-imx6q.c')
-rw-r--r-- | arch/arm/mach-imx/mach-imx6q.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 978b6dd00de4..9511142d436c 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -38,6 +38,40 @@ #include "cpuidle.h" #include "hardware.h" +#define IMX6Q_ANALOG_DIGPROG 0x260 + +static int imx6q_revision(void) +{ + struct device_node *np; + void __iomem *base; + static u32 rev; + + if (!rev) { + np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop"); + if (!np) + return IMX_CHIP_REVISION_UNKNOWN; + base = of_iomap(np, 0); + if (!base) { + of_node_put(np); + return IMX_CHIP_REVISION_UNKNOWN; + } + rev = readl_relaxed(base + IMX6Q_ANALOG_DIGPROG); + iounmap(base); + of_node_put(np); + } + + switch (rev & 0xff) { + case 0: + return IMX_CHIP_REVISION_1_0; + case 1: + return IMX_CHIP_REVISION_1_1; + case 2: + return IMX_CHIP_REVISION_1_2; + default: + return IMX_CHIP_REVISION_UNKNOWN; + } +} + void imx6q_restart(char mode, const char *cmd) { struct device_node *np; @@ -192,6 +226,7 @@ static void __init imx6q_timer_init(void) { mx6q_clocks_init(); twd_local_timer_of_register(); + imx_print_silicon_rev("i.MX6Q", imx6q_revision()); } static struct sys_timer imx6q_timer = { |