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| author | Shawn Guo <shawn.guo@linaro.org> | 2013-04-01 22:13:32 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-04-12 19:28:15 +0800 |
| commit | 3c03a2fed63881abf5ecb5596625157ecfc9e4eb (patch) | |
| tree | 778ca5a06bce20eb35f4c459505a3c5bf46a0c0a /arch/arm/mach-imx/mach-imx6q.c | |
| parent | 9a37ac481aab63c61488562c03125ba279ad57c6 (diff) | |
| download | linux-3c03a2fed63881abf5ecb5596625157ecfc9e4eb.tar.bz2 | |
ARM: imx: add initial imx6dl support
The i.MX6 DualLite/Solo is another i.MX6 family SoC, which is highly
compatible with i.MX6 Quad/Dual. And that's why we choose to support
it using imx6q code with cpu_is_imx6dl() check when necessary.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx/mach-imx6q.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6q.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 221f31991939..8aa9d9065e8e 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -39,23 +39,32 @@ #include "cpuidle.h" #include "hardware.h" +static u32 chip_revision; + int imx6q_revision(void) { - static u32 rev; + return chip_revision; +} - if (!rev) - rev = imx_anatop_get_digprog(); +static void __init imx6q_init_revision(void) +{ + u32 rev = imx_anatop_get_digprog(); switch (rev & 0xff) { case 0: - return IMX_CHIP_REVISION_1_0; + chip_revision = IMX_CHIP_REVISION_1_0; + break; case 1: - return IMX_CHIP_REVISION_1_1; + chip_revision = IMX_CHIP_REVISION_1_1; + break; case 2: - return IMX_CHIP_REVISION_1_2; + chip_revision = IMX_CHIP_REVISION_1_2; + break; default: - return IMX_CHIP_REVISION_UNKNOWN; + chip_revision = IMX_CHIP_REVISION_UNKNOWN; } + + mxc_set_cpu_type(rev >> 16 & 0xff); } void imx6q_restart(char mode, const char *cmd) @@ -247,6 +256,7 @@ static void __init imx6q_map_io(void) static void __init imx6q_init_irq(void) { + imx6q_init_revision(); l2x0_of_init(0, ~0UL); imx_src_init(); imx_gpc_init(); @@ -257,15 +267,17 @@ static void __init imx6q_timer_init(void) { mx6q_clocks_init(); twd_local_timer_of_register(); - imx_print_silicon_rev("i.MX6Q", imx6q_revision()); + imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q", + imx6q_revision()); } static const char *imx6q_dt_compat[] __initdata = { + "fsl,imx6dl", "fsl,imx6q", NULL, }; -DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad (Device Tree)") +DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad/DualLite (Device Tree)") .smp = smp_ops(imx_smp_ops), .map_io = imx6q_map_io, .init_irq = imx6q_init_irq, |