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Diffstat (limited to 'arch/arm/mach-imx/mach-imx6q.c')
-rw-r--r--arch/arm/mach-imx/mach-imx6q.c74
1 files changed, 25 insertions, 49 deletions
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 99502eeefdf7..5536fd81379a 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2011 Freescale Semiconductor, Inc.
+ * Copyright 2011-2013 Freescale Semiconductor, Inc.
* Copyright 2011 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
@@ -38,38 +38,32 @@
#include "cpuidle.h"
#include "hardware.h"
-#define IMX6Q_ANALOG_DIGPROG 0x260
+static u32 chip_revision;
-static int imx6q_revision(void)
+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);
- }
+ return chip_revision;
+}
+
+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);
}
static void imx6q_restart(char mode, const char *cmd)
@@ -164,29 +158,7 @@ static void __init imx6q_1588_init(void)
}
static void __init imx6q_usb_init(void)
{
- struct regmap *anatop;
-
-#define HW_ANADIG_USB1_CHRG_DETECT 0x000001b0
-#define HW_ANADIG_USB2_CHRG_DETECT 0x00000210
-
-#define BM_ANADIG_USB_CHRG_DETECT_EN_B 0x00100000
-#define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B 0x00080000
-
- anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop");
- if (!IS_ERR(anatop)) {
- /*
- * The external charger detector needs to be disabled,
- * or the signal at DP will be poor
- */
- regmap_write(anatop, HW_ANADIG_USB1_CHRG_DETECT,
- BM_ANADIG_USB_CHRG_DETECT_EN_B
- | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
- regmap_write(anatop, HW_ANADIG_USB2_CHRG_DETECT,
- BM_ANADIG_USB_CHRG_DETECT_EN_B |
- BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
- } else {
- pr_warn("failed to find fsl,imx6q-anatop regmap\n");
- }
+ imx_anatop_usb_chrg_detect_disable();
}
static void __init imx6q_init_machine(void)
@@ -196,6 +168,7 @@ static void __init imx6q_init_machine(void)
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+ imx_anatop_init();
imx6q_pm_init();
imx6q_usb_init();
imx6q_1588_init();
@@ -282,6 +255,7 @@ 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();
@@ -292,15 +266,17 @@ static void __init imx6q_timer_init(void)
{
mx6q_clocks_init();
clocksource_of_init();
- 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,