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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-07 11:02:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-07 11:02:18 -0700
commitfcba914542082b272f31c8e4c40000b88ed3208d (patch)
treefb28069bf571d93420daafd501b4e97f221d526c /arch/arm/mach-imx
parenta8c4b90e670be3b01e9395c7310639c8109fc77e (diff)
parent5c5f0421a8eea5bdaba9b9313c5bb4833aeb39cd (diff)
Merge tag 'soc-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates (part 3) from Arnd Bergmann: "This is the third and smallest of the SoC specific updates. Changes include: - SMP support for the Xilinx zynq platform - Smaller imx changes - LPAE support for mvebu - Moving the orion5x, kirkwood, dove and mvebu platforms to a common "mbus" driver for their internal devices. It would be good to get feedback on the location of the "mbus" driver. Since this is used on multiple platforms may potentially get shared with other architectures (powerpc and arm64), it was moved to drivers/bus/. We expect other similar drivers to get moved to the same place in order to avoid creating more top-level directories under drivers/ or cluttering up the messy drivers/misc/ even more." * tag 'soc-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits) ARM: imx: reset_controller may be disabled ARM: mvebu: Align the internal registers virtual base to support LPAE ARM: mvebu: Limit the DMA zone when LPAE is selected arm: plat-orion: remove addr-map code arm: mach-mv78xx0: convert to use the mvebu-mbus driver arm: mach-orion5x: convert to use mvebu-mbus driver arm: mach-dove: convert to use mvebu-mbus driver arm: mach-kirkwood: convert to use mvebu-mbus driver arm: mach-mvebu: convert to use mvebu-mbus driver ARM i.MX53: set CLK_SET_RATE_PARENT flag on the tve_ext_sel clock ARM i.MX53: tve_di clock is not part of the CCM, but of TVE ARM i.MX53: make tve_ext_sel propagate rate change to PLL ARM i.MX53: Remove unused tve_gate clkdev entry ARM i.MX5: Remove tve_sel clock from i.MX53 clock tree ARM: i.MX5: Add PATA and SRTC clocks ARM: imx: do not bring up unavailable cores ARM: imx: add initial imx6dl support ARM: imx1: mm: add call to mxc_device_init ARM: imx_v4_v5_defconfig: Add CONFIG_GPIO_SYSFS ARM: imx_v6_v7_defconfig: Select CONFIG_PERF_EVENTS ...
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r--arch/arm/mach-imx/Kconfig10
-rw-r--r--arch/arm/mach-imx/Makefile1
-rw-r--r--arch/arm/mach-imx/anatop.c103
-rw-r--r--arch/arm/mach-imx/clk-imx51-imx53.c75
-rw-r--r--arch/arm/mach-imx/clk-imx6q.c126
-rw-r--r--arch/arm/mach-imx/clk.h17
-rw-r--r--arch/arm/mach-imx/common.h10
-rw-r--r--arch/arm/mach-imx/gpc.c23
-rw-r--r--arch/arm/mach-imx/mach-imx6q.c74
-rw-r--r--arch/arm/mach-imx/mm-imx1.c2
-rw-r--r--arch/arm/mach-imx/mxc.h11
-rw-r--r--arch/arm/mach-imx/platsmp.c4
-rw-r--r--arch/arm/mach-imx/pm-imx6q.c4
-rw-r--r--arch/arm/mach-imx/src.c66
14 files changed, 444 insertions, 82 deletions
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 2ebc97e16b91..78f795d73cb6 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -65,6 +65,9 @@ config IRAM_ALLOC
bool
select GENERIC_ALLOCATOR
+config HAVE_IMX_ANATOP
+ bool
+
config HAVE_IMX_GPC
bool
@@ -73,6 +76,7 @@ config HAVE_IMX_MMDC
config HAVE_IMX_SRC
def_bool y if SMP
+ select ARCH_HAS_RESET_CONTROLLER
config IMX_HAVE_IOMUX_V1
bool
@@ -115,6 +119,8 @@ config SOC_IMX25
config SOC_IMX27
bool
+ select ARCH_HAS_CPUFREQ
+ select ARCH_HAS_OPP
select COMMON_CLK
select CPU_ARM926T
select IMX_HAVE_IOMUX_V1
@@ -142,6 +148,7 @@ config SOC_IMX35
config SOC_IMX5
bool
select ARCH_HAS_CPUFREQ
+ select ARCH_HAS_OPP
select ARCH_MXC_IOMUX_V3
select COMMON_CLK
select CPU_V7
@@ -783,7 +790,7 @@ config SOC_IMX53
This enables support for Freescale i.MX53 processor.
config SOC_IMX6Q
- bool "i.MX6 Quad support"
+ bool "i.MX6 Quad/DualLite support"
select ARCH_HAS_CPUFREQ
select ARCH_HAS_OPP
select ARM_CPU_SUSPEND if PM
@@ -796,6 +803,7 @@ config SOC_IMX6Q
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if LOCAL_TIMERS
select HAVE_CAN_FLEXCAN if CAN
+ select HAVE_IMX_ANATOP
select HAVE_IMX_GPC
select HAVE_IMX_MMDC
select HAVE_IMX_SRC
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index fbe60a145344..930958973f81 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -91,6 +91,7 @@ obj-$(CONFIG_MACH_EUKREA_CPUIMX35SD) += mach-cpuimx35.o
obj-$(CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD) += eukrea_mbimxsd35-baseboard.o
obj-$(CONFIG_MACH_VPR200) += mach-vpr200.o
+obj-$(CONFIG_HAVE_IMX_ANATOP) += anatop.o
obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
obj-$(CONFIG_HAVE_IMX_MMDC) += mmdc.o
obj-$(CONFIG_HAVE_IMX_SRC) += src.o
diff --git a/arch/arm/mach-imx/anatop.c b/arch/arm/mach-imx/anatop.c
new file mode 100644
index 000000000000..0cfa07dd9aa4
--- /dev/null
+++ b/arch/arm/mach-imx/anatop.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include "common.h"
+
+#define REG_SET 0x4
+#define REG_CLR 0x8
+
+#define ANADIG_REG_2P5 0x130
+#define ANADIG_REG_CORE 0x140
+#define ANADIG_ANA_MISC0 0x150
+#define ANADIG_USB1_CHRG_DETECT 0x1b0
+#define ANADIG_USB2_CHRG_DETECT 0x210
+#define ANADIG_DIGPROG 0x260
+
+#define BM_ANADIG_REG_2P5_ENABLE_WEAK_LINREG 0x40000
+#define BM_ANADIG_REG_CORE_FET_ODRIVE 0x20000000
+#define BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG 0x1000
+#define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B 0x80000
+#define BM_ANADIG_USB_CHRG_DETECT_EN_B 0x100000
+
+static struct regmap *anatop;
+
+static void imx_anatop_enable_weak2p5(bool enable)
+{
+ u32 reg, val;
+
+ regmap_read(anatop, ANADIG_ANA_MISC0, &val);
+
+ /* can only be enabled when stop_mode_config is clear. */
+ reg = ANADIG_REG_2P5;
+ reg += (enable && (val & BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG) == 0) ?
+ REG_SET : REG_CLR;
+ regmap_write(anatop, reg, BM_ANADIG_REG_2P5_ENABLE_WEAK_LINREG);
+}
+
+static void imx_anatop_enable_fet_odrive(bool enable)
+{
+ regmap_write(anatop, ANADIG_REG_CORE + (enable ? REG_SET : REG_CLR),
+ BM_ANADIG_REG_CORE_FET_ODRIVE);
+}
+
+void imx_anatop_pre_suspend(void)
+{
+ imx_anatop_enable_weak2p5(true);
+ imx_anatop_enable_fet_odrive(true);
+}
+
+void imx_anatop_post_resume(void)
+{
+ imx_anatop_enable_fet_odrive(false);
+ imx_anatop_enable_weak2p5(false);
+}
+
+void imx_anatop_usb_chrg_detect_disable(void)
+{
+ regmap_write(anatop, ANADIG_USB1_CHRG_DETECT,
+ BM_ANADIG_USB_CHRG_DETECT_EN_B
+ | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
+ regmap_write(anatop, ANADIG_USB2_CHRG_DETECT,
+ BM_ANADIG_USB_CHRG_DETECT_EN_B |
+ BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
+}
+
+u32 imx_anatop_get_digprog(void)
+{
+ struct device_node *np;
+ void __iomem *anatop_base;
+ static u32 digprog;
+
+ if (digprog)
+ return digprog;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
+ anatop_base = of_iomap(np, 0);
+ WARN_ON(!anatop_base);
+ digprog = readl_relaxed(anatop_base + ANADIG_DIGPROG);
+
+ return digprog;
+}
+
+void __init imx_anatop_init(void)
+{
+ anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop");
+ if (IS_ERR(anatop)) {
+ pr_err("%s: failed to find imx6q-anatop regmap!\n", __func__);
+ return;
+ }
+}
diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index 2bc623b414c1..6fc486b6a3c6 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -45,16 +45,40 @@ static const char *mx53_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "
static const char *mx53_ldb_di1_sel[] = { "pll3_sw", "pll4_sw", };
static const char *mx51_tve_ext_sel[] = { "osc", "ckih1", };
static const char *mx53_tve_ext_sel[] = { "pll4_sw", "ckih1", };
-static const char *tve_sel[] = { "tve_pred", "tve_ext_sel", };
+static const char *mx51_tve_sel[] = { "tve_pred", "tve_ext_sel", };
static const char *ipu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", };
+static const char *gpu3d_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb" };
+static const char *gpu2d_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb" };
static const char *vpu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", };
static const char *mx53_can_sel[] = { "ipg", "ckih1", "ckih2", "lp_apm", };
+static const char *mx53_cko1_sel[] = {
+ "cpu_podf", "pll1_sw", "pll2_sw", "pll3_sw",
+ "emi_slow_podf", "pll4_sw", "nfc_podf", "dummy",
+ "di_pred", "dummy", "dummy", "ahb",
+ "ipg", "per_root", "ckil", "dummy",};
+static const char *mx53_cko2_sel[] = {
+ "dummy"/* dptc_core */, "dummy"/* dptc_perich */,
+ "dummy", "esdhc_a_podf",
+ "usboh3_podf", "dummy"/* wrck_clk_root */,
+ "ecspi_podf", "dummy"/* pll1_ref_clk */,
+ "esdhc_b_podf", "dummy"/* ddr_clk_root */,
+ "dummy"/* arm_axi_clk_root */, "dummy"/* usb_phy_out */,
+ "vpu_sel", "ipu_sel",
+ "osc", "ckih1",
+ "dummy", "esdhc_c_sel",
+ "ssi1_root_podf", "ssi2_root_podf",
+ "dummy", "dummy",
+ "dummy"/* lpsr_clk_root */, "dummy"/* pgc_clk_root */,
+ "dummy"/* tve_out */, "usb_phy_sel",
+ "tve_sel", "lp_apm",
+ "uart_root", "dummy"/* spdif0_clk_root */,
+ "dummy", "dummy", };
enum imx5_clks {
dummy, ckil, osc, ckih1, ckih2, ahb, ipg, axi_a, axi_b, uart_pred,
uart_root, esdhc_a_pred, esdhc_b_pred, esdhc_c_s, esdhc_d_s,
emi_sel, emi_slow_podf, nfc_podf, ecspi_pred, ecspi_podf, usboh3_pred,
- usboh3_podf, usb_phy_pred, usb_phy_podf, cpu_podf, di_pred, tve_di,
+ usboh3_podf, usb_phy_pred, usb_phy_podf, cpu_podf, di_pred, tve_di_unused,
tve_s, uart1_ipg_gate, uart1_per_gate, uart2_ipg_gate,
uart2_per_gate, uart3_ipg_gate, uart3_per_gate, i2c1_gate, i2c2_gate,
gpt_ipg_gate, pwm1_ipg_gate, pwm1_hf_gate, pwm2_ipg_gate, pwm2_hf_gate,
@@ -83,7 +107,10 @@ enum imx5_clks {
ssi2_root_gate, ssi3_root_gate, ssi_ext1_gate, ssi_ext2_gate,
epit1_ipg_gate, epit1_hf_gate, epit2_ipg_gate, epit2_hf_gate,
can_sel, can1_serial_gate, can1_ipg_gate,
- owire_gate,
+ owire_gate, gpu3d_s, gpu2d_s, gpu3d_gate, gpu2d_gate, garb_gate,
+ cko1_sel, cko1_podf, cko1,
+ cko2_sel, cko2_podf, cko2,
+ srtc_gate, pata_gate,
clk_max
};
@@ -160,8 +187,6 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
usb_phy_sel_str, ARRAY_SIZE(usb_phy_sel_str));
clk[cpu_podf] = imx_clk_divider("cpu_podf", "pll1_sw", MXC_CCM_CACRR, 0, 3);
clk[di_pred] = imx_clk_divider("di_pred", "pll3_sw", MXC_CCM_CDCDR, 6, 3);
- clk[tve_di] = imx_clk_fixed("tve_di", 65000000); /* FIXME */
- clk[tve_s] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1, tve_sel, ARRAY_SIZE(tve_sel));
clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", MXC_CCM_CCGR0, 30);
clk[uart1_ipg_gate] = imx_clk_gate2("uart1_ipg_gate", "ipg", MXC_CCM_CCGR1, 6);
clk[uart1_per_gate] = imx_clk_gate2("uart1_per_gate", "uart_root", MXC_CCM_CCGR1, 8);
@@ -200,6 +225,11 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
clk[nfc_gate] = imx_clk_gate2("nfc_gate", "nfc_podf", MXC_CCM_CCGR5, 20);
clk[ipu_di0_gate] = imx_clk_gate2("ipu_di0_gate", "ipu_di0_sel", MXC_CCM_CCGR6, 10);
clk[ipu_di1_gate] = imx_clk_gate2("ipu_di1_gate", "ipu_di1_sel", MXC_CCM_CCGR6, 12);
+ clk[gpu3d_s] = imx_clk_mux("gpu3d_sel", MXC_CCM_CBCMR, 4, 2, gpu3d_sel, ARRAY_SIZE(gpu3d_sel));
+ clk[gpu2d_s] = imx_clk_mux("gpu2d_sel", MXC_CCM_CBCMR, 16, 2, gpu2d_sel, ARRAY_SIZE(gpu2d_sel));
+ clk[gpu3d_gate] = imx_clk_gate2("gpu3d_gate", "gpu3d_sel", MXC_CCM_CCGR5, 2);
+ clk[garb_gate] = imx_clk_gate2("garb_gate", "axi_a", MXC_CCM_CCGR5, 4);
+ clk[gpu2d_gate] = imx_clk_gate2("gpu2d_gate", "gpu2d_sel", MXC_CCM_CCGR6, 14);
clk[vpu_s] = imx_clk_mux("vpu_sel", MXC_CCM_CBCMR, 14, 2, vpu_sel, ARRAY_SIZE(vpu_sel));
clk[vpu_gate] = imx_clk_gate2("vpu_gate", "vpu_sel", MXC_CCM_CCGR5, 6);
clk[vpu_reference_gate] = imx_clk_gate2("vpu_reference_gate", "osc", MXC_CCM_CCGR5, 8);
@@ -235,6 +265,8 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
clk[epit2_ipg_gate] = imx_clk_gate2("epit2_ipg_gate", "ipg", MXC_CCM_CCGR2, 6);
clk[epit2_hf_gate] = imx_clk_gate2("epit2_hf_gate", "per_root", MXC_CCM_CCGR2, 8);
clk[owire_gate] = imx_clk_gate2("owire_gate", "per_root", MXC_CCM_CCGR2, 22);
+ clk[srtc_gate] = imx_clk_gate2("srtc_gate", "per_root", MXC_CCM_CCGR4, 28);
+ clk[pata_gate] = imx_clk_gate2("pata_gate", "ipg", MXC_CCM_CCGR4, 0);
for (i = 0; i < ARRAY_SIZE(clk); i++)
if (IS_ERR(clk[i]))
@@ -286,7 +318,6 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.0");
clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.1");
clk_register_clkdev(clk[dummy], NULL, "imx-keypad");
- clk_register_clkdev(clk[tve_gate], NULL, "imx-tve.0");
clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx-tve.0");
clk_register_clkdev(clk[gpc_dvfs], "gpc_dvfs", NULL);
clk_register_clkdev(clk[epit1_ipg_gate], "ipg", "imx-epit.0");
@@ -331,8 +362,10 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
mx51_ipu_di0_sel, ARRAY_SIZE(mx51_ipu_di0_sel));
clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3,
mx51_ipu_di1_sel, ARRAY_SIZE(mx51_ipu_di1_sel));
- clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1,
- mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel));
+ clk[tve_ext_sel] = imx_clk_mux_flags("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1,
+ mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel), CLK_SET_RATE_PARENT);
+ clk[tve_s] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1,
+ mx51_tve_sel, ARRAY_SIZE(mx51_tve_sel));
clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_sel", MXC_CCM_CCGR2, 30);
clk[tve_pred] = imx_clk_divider("tve_pred", "pll3_sw", MXC_CCM_CDCDR, 28, 3);
clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2);
@@ -420,23 +453,23 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE);
clk[pll4_sw] = imx_clk_pllv2("pll4_sw", "osc", MX53_DPLL4_BASE);
- clk[ldb_di1_sel] = imx_clk_mux("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1,
- mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel));
clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
- clk[ldb_di1_div] = imx_clk_divider("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1);
+ clk[ldb_di1_div] = imx_clk_divider_flags("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1, 0);
+ clk[ldb_di1_sel] = imx_clk_mux_flags("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1,
+ mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel), CLK_SET_RATE_PARENT);
clk[di_pll4_podf] = imx_clk_divider("di_pll4_podf", "pll4_sw", MXC_CCM_CDCDR, 16, 3);
- clk[ldb_di0_sel] = imx_clk_mux("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1,
- mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel));
clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7);
- clk[ldb_di0_div] = imx_clk_divider("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1);
+ clk[ldb_di0_div] = imx_clk_divider_flags("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1, 0);
+ clk[ldb_di0_sel] = imx_clk_mux_flags("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1,
+ mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel), CLK_SET_RATE_PARENT);
clk[ldb_di0_gate] = imx_clk_gate2("ldb_di0_gate", "ldb_di0_div", MXC_CCM_CCGR6, 28);
clk[ldb_di1_gate] = imx_clk_gate2("ldb_di1_gate", "ldb_di1_div", MXC_CCM_CCGR6, 30);
clk[ipu_di0_sel] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3,
mx53_ipu_di0_sel, ARRAY_SIZE(mx53_ipu_di0_sel));
clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3,
mx53_ipu_di1_sel, ARRAY_SIZE(mx53_ipu_di1_sel));
- clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1,
- mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel));
+ clk[tve_ext_sel] = imx_clk_mux_flags("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1,
+ mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel), CLK_SET_RATE_PARENT);
clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_pred", MXC_CCM_CCGR2, 30);
clk[tve_pred] = imx_clk_divider("tve_pred", "tve_ext_sel", MXC_CCM_CDCDR, 28, 3);
clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2);
@@ -453,6 +486,16 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
clk[can2_ipg_gate] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 6);
clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22);
+ clk[cko1_sel] = imx_clk_mux("cko1_sel", MXC_CCM_CCOSR, 0, 4,
+ mx53_cko1_sel, ARRAY_SIZE(mx53_cko1_sel));
+ clk[cko1_podf] = imx_clk_divider("cko1_podf", "cko1_sel", MXC_CCM_CCOSR, 4, 3);
+ clk[cko1] = imx_clk_gate2("cko1", "cko1_podf", MXC_CCM_CCOSR, 7);
+
+ clk[cko2_sel] = imx_clk_mux("cko2_sel", MXC_CCM_CCOSR, 16, 5,
+ mx53_cko2_sel, ARRAY_SIZE(mx53_cko2_sel));
+ clk[cko2_podf] = imx_clk_divider("cko2_podf", "cko2_sel", MXC_CCM_CCOSR, 21, 3);
+ clk[cko2] = imx_clk_gate2("cko2", "cko2_podf", MXC_CCM_CCOSR, 24);
+
for (i = 0; i < ARRAY_SIZE(clk); i++)
if (IS_ERR(clk[i]))
pr_err("i.MX53 clk %d: register failed with %ld\n",
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index d38e54f5b6d7..151259003086 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-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
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
+#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/of.h>
@@ -22,6 +23,12 @@
#include "clk.h"
#include "common.h"
+#include "hardware.h"
+
+#define CCR 0x0
+#define BM_CCR_WB_COUNT (0x7 << 16)
+#define BM_CCR_RBC_BYPASS_COUNT (0x3f << 21)
+#define BM_CCR_RBC_EN (0x1 << 27)
#define CCGR0 0x68
#define CCGR1 0x6c
@@ -67,6 +74,67 @@ void imx6q_set_chicken_bit(void)
writel_relaxed(val, ccm_base + CGPR);
}
+static void imx6q_enable_rbc(bool enable)
+{
+ u32 val;
+ static bool last_rbc_mode;
+
+ if (last_rbc_mode == enable)
+ return;
+ /*
+ * need to mask all interrupts in GPC before
+ * operating RBC configurations
+ */
+ imx_gpc_mask_all();
+
+ /* configure RBC enable bit */
+ val = readl_relaxed(ccm_base + CCR);
+ val &= ~BM_CCR_RBC_EN;
+ val |= enable ? BM_CCR_RBC_EN : 0;
+ writel_relaxed(val, ccm_base + CCR);
+
+ /* configure RBC count */
+ val = readl_relaxed(ccm_base + CCR);
+ val &= ~BM_CCR_RBC_BYPASS_COUNT;
+ val |= enable ? BM_CCR_RBC_BYPASS_COUNT : 0;
+ writel(val, ccm_base + CCR);
+
+ /*
+ * need to delay at least 2 cycles of CKIL(32K)
+ * due to hardware design requirement, which is
+ * ~61us, here we use 65us for safe
+ */
+ udelay(65);
+
+ /* restore GPC interrupt mask settings */
+ imx_gpc_restore_all();
+
+ last_rbc_mode = enable;
+}
+
+static void imx6q_enable_wb(bool enable)
+{
+ u32 val;
+ static bool last_wb_mode;
+
+ if (last_wb_mode == enable)
+ return;
+
+ /* configure well bias enable bit */
+ val = readl_relaxed(ccm_base + CLPCR);
+ val &= ~BM_CLPCR_WB_PER_AT_LPM;
+ val |= enable ? BM_CLPCR_WB_PER_AT_LPM : 0;
+ writel_relaxed(val, ccm_base + CLPCR);
+
+ /* configure well bias count */
+ val = readl_relaxed(ccm_base + CCR);
+ val &= ~BM_CCR_WB_COUNT;
+ val |= enable ? BM_CCR_WB_COUNT : 0;
+ writel_relaxed(val, ccm_base + CCR);
+
+ last_wb_mode = enable;
+}
+
int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
{
u32 val = readl_relaxed(ccm_base + CLPCR);
@@ -74,6 +142,8 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
val &= ~BM_CLPCR_LPM;
switch (mode) {
case WAIT_CLOCKED:
+ imx6q_enable_wb(false);
+ imx6q_enable_rbc(false);
break;
case WAIT_UNCLOCKED:
val |= 0x1 << BP_CLPCR_LPM;
@@ -92,6 +162,8 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
val |= 0x3 << BP_CLPCR_STBY_COUNT;
val |= BM_CLPCR_VSTBY;
val |= BM_CLPCR_SBYOS;
+ imx6q_enable_wb(true);
+ imx6q_enable_rbc(true);
break;
default:
return -EINVAL;
@@ -109,29 +181,29 @@ static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", };
static const char *periph_sels[] = { "periph_pre", "periph_clk2", };
static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", };
static const char *axi_sels[] = { "periph", "pll2_pfd2_396m", "pll3_pfd1_540m", };
-static const char *audio_sels[] = { "pll4_audio", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
+static const char *audio_sels[] = { "pll4_post_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
static const char *gpu_axi_sels[] = { "axi", "ahb", };
static const char *gpu2d_core_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
static const char *gpu3d_core_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd9_720m", };
static const char *ipu_sels[] = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
static const char *ldb_di_sels[] = { "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", };
-static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
+static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
static const char *ipu1_di0_sels[] = { "ipu1_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *ipu1_di1_sels[] = { "ipu1_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *ipu2_di0_sels[] = { "ipu2_di0_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *ipu2_di1_sels[] = { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
static const char *hsi_tx_sels[] = { "pll3_120m", "pll2_pfd2_396m", };
static const char *pcie_axi_sels[] = { "axi", "ahb", };
-static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio", };
+static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_post_div", };
static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", };
static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", };
static const char *emi_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", };
static const char *vdo_axi_sels[] = { "axi", "ahb", };
static const char *vpu_axi_sels[] = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", };
-static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video",
+static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div",
"dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0",
- "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio", };
+ "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_post_div", };
enum mx6q_clks {
dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m,
@@ -165,7 +237,7 @@ enum mx6q_clks {
pll4_audio, pll5_video, pll8_mlb, pll7_usb_host, pll6_enet, ssi1_ipg,
ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
- usbphy2_gate, clk_max
+ usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, clk_max
};
static struct clk *clk[clk_max];
@@ -182,6 +254,21 @@ static struct clk_div_table clk_enet_ref_table[] = {
{ .val = 3, .div = 4, },
};
+static struct clk_div_table post_div_table[] = {
+ { .val = 2, .div = 1, },
+ { .val = 1, .div = 2, },
+ { .val = 0, .div = 4, },
+ { }
+};
+
+static struct clk_div_table video_div_table[] = {
+ { .val = 0, .div = 1, },
+ { .val = 1, .div = 2, },
+ { .val = 2, .div = 1, },
+ { .val = 3, .div = 4, },
+ { }
+};
+
int __init mx6q_clocks_init(void)
{
struct device_node *np;
@@ -208,6 +295,14 @@ int __init mx6q_clocks_init(void)
base = of_iomap(np, 0);
WARN_ON(!base);
+ /* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */
+ if (cpu_is_imx6q() && imx6q_revision() == IMX_CHIP_REVISION_1_0) {
+ post_div_table[1].div = 1;
+ post_div_table[2].div = 1;
+ video_div_table[1].div = 1;
+ video_div_table[2].div = 1;
+ };
+
/* type name parent_name base div_mask */
clk[pll1_sys] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1_sys", "osc", base, 0x7f);
clk[pll2_bus] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus", "osc", base + 0x30, 0x1);
@@ -260,6 +355,10 @@ int __init mx6q_clocks_init(void)
clk[pll3_60m] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8);
clk[twd] = imx_clk_fixed_factor("twd", "arm", 1, 2);
+ clk[pll4_post_div] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock);
+ clk[pll5_post_div] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock);
+ clk[pll5_video_div] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock);
+
np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ccm");
base = of_iomap(np, 0);
WARN_ON(!base);
@@ -283,8 +382,8 @@ int __init mx6q_clocks_init(void)
clk[gpu3d_shader_sel] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8, 2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels));
clk[ipu1_sel] = imx_clk_mux("ipu1_sel", base + 0x3c, 9, 2, ipu_sels, ARRAY_SIZE(ipu_sels));
clk[ipu2_sel] = imx_clk_mux("ipu2_sel", base + 0x3c, 14, 2, ipu_sels, ARRAY_SIZE(ipu_sels));
- clk[ldb_di0_sel] = imx_clk_mux("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
- clk[ldb_di1_sel] = imx_clk_mux("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
+ clk[ldb_di0_sel] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
+ clk[ldb_di1_sel] = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
clk[ipu1_di0_pre_sel] = imx_clk_mux("ipu1_di0_pre_sel", base + 0x34, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
clk[ipu1_di1_pre_sel] = imx_clk_mux("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
clk[ipu2_di0_pre_sel] = imx_clk_mux("ipu2_di0_pre_sel", base + 0x38, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels));
@@ -332,9 +431,9 @@ int __init mx6q_clocks_init(void)
clk[ipu1_podf] = imx_clk_divider("ipu1_podf", "ipu1_sel", base + 0x3c, 11, 3);
clk[ipu2_podf] = imx_clk_divider("ipu2_podf", "ipu2_sel", base + 0x3c, 16, 3);
clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7);
- clk[ldb_di0_podf] = imx_clk_divider("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1);
+ clk[ldb_di0_podf] = imx_clk_divider_flags("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1, 0);
clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
- clk[ldb_di1_podf] = imx_clk_divider("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1);
+ clk[ldb_di1_podf] = imx_clk_divider_flags("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1, 0);
clk[ipu1_di0_pre] = imx_clk_divider("ipu1_di0_pre", "ipu1_di0_pre_sel", base + 0x34, 3, 3);
clk[ipu1_di1_pre] = imx_clk_divider("ipu1_di1_pre", "ipu1_di1_pre_sel", base + 0x34, 12, 3);
clk[ipu2_di0_pre] = imx_clk_divider("ipu2_di0_pre", "ipu2_di0_pre_sel", base + 0x38, 3, 3);
@@ -448,6 +547,11 @@ int __init mx6q_clocks_init(void)
clk_register_clkdev(clk[cko1], "cko1", NULL);
clk_register_clkdev(clk[arm], NULL, "cpu0");
+ if (imx6q_revision() != IMX_CHIP_REVISION_1_0) {
+ clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]);
+ clk_set_parent(clk[ldb_di1_sel], clk[pll5_video_div]);
+ }
+
/*
* The gpmi needs 100MHz frequency in the EDO/Sync mode,
* We can not get the 100MHz from the pll2_pfd0_352m.
diff --git a/arch/arm/mach-imx/clk.h b/arch/arm/mach-imx/clk.h
index 9d1f3b99d1d3..d9d9d9c66dff 100644
--- a/arch/arm/mach-imx/clk.h
+++ b/arch/arm/mach-imx/clk.h
@@ -59,6 +59,14 @@ static inline struct clk *imx_clk_divider(const char *name, const char *parent,
reg, shift, width, 0, &imx_ccm_lock);
}
+static inline struct clk *imx_clk_divider_flags(const char *name,
+ const char *parent, void __iomem *reg, u8 shift, u8 width,
+ unsigned long flags)
+{
+ return clk_register_divider(NULL, name, parent, flags,
+ reg, shift, width, 0, &imx_ccm_lock);
+}
+
static inline struct clk *imx_clk_gate(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
@@ -73,6 +81,15 @@ static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
width, 0, &imx_ccm_lock);
}
+static inline struct clk *imx_clk_mux_flags(const char *name,
+ void __iomem *reg, u8 shift, u8 width, const char **parents,
+ int num_parents, unsigned long flags)
+{
+ return clk_register_mux(NULL, name, parents, num_parents,
+ flags, reg, shift, width, 0,
+ &imx_ccm_lock);
+}
+
static inline struct clk *imx_clk_fixed_factor(const char *name,
const char *parent, unsigned int mult, unsigned int div)
{
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 9fea2522d7a3..4cba7dbb079f 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2004-2013 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
@@ -74,6 +74,7 @@ extern void mxc_set_cpu_type(unsigned int type);
extern void mxc_restart(char, const char *);
extern void mxc_arch_reset_init(void __iomem *);
extern int mx53_revision(void);
+extern int imx6q_revision(void);
extern int mx53_display_revision(void);
extern void imx_set_aips(void __iomem *);
extern int mxc_device_init(void);
@@ -128,6 +129,13 @@ extern void imx_src_prepare_restart(void);
extern void imx_gpc_init(void);
extern void imx_gpc_pre_suspend(void);
extern void imx_gpc_post_resume(void);
+extern void imx_gpc_mask_all(void);
+extern void imx_gpc_restore_all(void);
+extern void imx_anatop_init(void);
+extern void imx_anatop_pre_suspend(void);
+extern void imx_anatop_post_resume(void);
+extern void imx_anatop_usb_chrg_detect_disable(void);
+extern u32 imx_anatop_get_digprog(void);
extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
extern void imx6q_set_chicken_bit(void);
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index 02b61cdf39b9..44a65e9ff1fc 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.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
@@ -69,6 +69,27 @@ static int imx_gpc_irq_set_wake(struct irq_data *d, unsigned int on)
return 0;
}
+void imx_gpc_mask_all(void)
+{
+ void __iomem *reg_imr1 = gpc_base + GPC_IMR1;
+ int i;
+
+ for (i = 0; i < IMR_NUM; i++) {
+ gpc_saved_imrs[i] = readl_relaxed(reg_imr1 + i * 4);
+ writel_relaxed(~0, reg_imr1 + i * 4);
+ }
+
+}
+
+void imx_gpc_restore_all(void)
+{
+ void __iomem *reg_imr1 = gpc_base + GPC_IMR1;
+ int i;
+
+ for (i = 0; i < IMR_NUM; i++)
+ writel_relaxed(gpc_saved_imrs[i], reg_imr1 + i * 4);
+}
+
static void imx_gpc_irq_unmask(struct irq_data *d)
{
void __iomem *reg;
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,
diff --git a/arch/arm/mach-imx/mm-imx1.c b/arch/arm/mach-imx/mm-imx1.c
index 7a146671e65a..3c609c52d3eb 100644
--- a/arch/arm/mach-imx/mm-imx1.c
+++ b/arch/arm/mach-imx/mm-imx1.c
@@ -51,6 +51,8 @@ void __init mx1_init_irq(void)
void __init imx1_soc_init(void)
{
+ mxc_device_init();
+
mxc_register_gpio("imx1-gpio", 0, MX1_GPIO1_BASE_ADDR, SZ_256,
MX1_GPIO_INT_PORTA, 0);
mxc_register_gpio("imx1-gpio", 1, MX1_GPIO2_BASE_ADDR, SZ_256,
diff --git a/arch/arm/mach-imx/mxc.h b/arch/arm/mach-imx/mxc.h
index 7dce17a9fe6c..8629e5be7ecd 100644
--- a/arch/arm/mach-imx/mxc.h
+++ b/arch/arm/mach-imx/mxc.h
@@ -34,6 +34,8 @@
#define MXC_CPU_MX35 35
#define MXC_CPU_MX51 51
#define MXC_CPU_MX53 53
+#define MXC_CPU_IMX6DL 0x61
+#define MXC_CPU_IMX6Q 0x63
#define IMX_CHIP_REVISION_1_0 0x10
#define IMX_CHIP_REVISION_1_1 0x11
@@ -150,6 +152,15 @@ extern unsigned int __mxc_cpu_type;
#endif
#ifndef __ASSEMBLY__
+static inline bool cpu_is_imx6dl(void)
+{
+ return __mxc_cpu_type == MXC_CPU_IMX6DL;
+}
+
+static inline bool cpu_is_imx6q(void)
+{
+ return __mxc_cpu_type == MXC_CPU_IMX6Q;
+}
struct cpu_op {
u32 cpu_rate;
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 77e9a25ed0f6..4a69305db65e 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -68,8 +68,8 @@ static void __init imx_smp_init_cpus(void)
ncores = scu_get_core_count(scu_base);
- for (i = 0; i < ncores; i++)
- set_cpu_possible(i, true);
+ for (i = ncores; i < NR_CPUS; i++)
+ set_cpu_possible(i, false);
}
void imx_smp_prepare(void)
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index 5faba7a3c95f..204942749e21 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-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
@@ -34,10 +34,12 @@ static int imx6q_pm_enter(suspend_state_t state)
case PM_SUSPEND_MEM:
imx6q_set_lpm(STOP_POWER_OFF);
imx_gpc_pre_suspend();
+ imx_anatop_pre_suspend();
imx_set_cpu_jump(0, v7_cpu_resume);
/* Zzz ... */
cpu_suspend(0, imx6q_suspend_finish);
imx_smp_prepare();
+ imx_anatop_post_resume();
imx_gpc_post_resume();
imx6q_set_lpm(WAIT_CLOCKED);
break;
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 97d086889481..10a6b1a8c5ac 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -14,6 +14,7 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/reset-controller.h>
#include <linux/smp.h>
#include <asm/smp_plat.h>
#include "common.h"
@@ -21,10 +22,65 @@
#define SRC_SCR 0x000
#define SRC_GPR1 0x020
#define BP_SRC_SCR_WARM_RESET_ENABLE 0
+#define BP_SRC_SCR_SW_GPU_RST 1
+#define BP_SRC_SCR_SW_VPU_RST 2
+#define BP_SRC_SCR_SW_IPU1_RST 3
+#define BP_SRC_SCR_SW_OPEN_VG_RST 4
+#define BP_SRC_SCR_SW_IPU2_RST 12
#define BP_SRC_SCR_CORE1_RST 14
#define BP_SRC_SCR_CORE1_ENABLE 22
static void __iomem *src_base;
+static DEFINE_SPINLOCK(scr_lock);
+
+static const int sw_reset_bits[5] = {
+ BP_SRC_SCR_SW_GPU_RST,
+ BP_SRC_SCR_SW_VPU_RST,
+ BP_SRC_SCR_SW_IPU1_RST,
+ BP_SRC_SCR_SW_OPEN_VG_RST,
+ BP_SRC_SCR_SW_IPU2_RST
+};
+
+static int imx_src_reset_module(struct reset_controller_dev *rcdev,
+ unsigned long sw_reset_idx)
+{
+ unsigned long timeout;
+ unsigned long flags;
+ int bit;
+ u32 val;
+
+ if (!src_base)
+ return -ENODEV;
+
+ if (sw_reset_idx >= ARRAY_SIZE(sw_reset_bits))
+ return -EINVAL;
+
+ bit = 1 << sw_reset_bits[sw_reset_idx];
+
+ spin_lock_irqsave(&scr_lock, flags);
+ val = readl_relaxed(src_base + SRC_SCR);
+ val |= bit;
+ writel_relaxed(val, src_base + SRC_SCR);
+ spin_unlock_irqrestore(&scr_lock, flags);
+
+ timeout = jiffies + msecs_to_jiffies(1000);
+ while (readl(src_base + SRC_SCR) & bit) {
+ if (time_after(jiffies, timeout))
+ return -ETIME;
+ cpu_relax();
+ }
+
+ return 0;
+}
+
+static struct reset_control_ops imx_src_ops = {
+ .reset = imx_src_reset_module,
+};
+
+static struct reset_controller_dev imx_reset_controller = {
+ .ops = &imx_src_ops,
+ .nr_resets = ARRAY_SIZE(sw_reset_bits),
+};
void imx_enable_cpu(int cpu, bool enable)
{
@@ -32,9 +88,11 @@ void imx_enable_cpu(int cpu, bool enable)
cpu = cpu_logical_map(cpu);
mask = 1 << (BP_SRC_SCR_CORE1_ENABLE + cpu - 1);
+ spin_lock(&scr_lock);
val = readl_relaxed(src_base + SRC_SCR);
val = enable ? val | mask : val & ~mask;
writel_relaxed(val, src_base + SRC_SCR);
+ spin_unlock(&scr_lock);
}
void imx_set_cpu_jump(int cpu, void *jump_addr)
@@ -61,9 +119,11 @@ void imx_src_prepare_restart(void)
u32 val;
/* clear enable bits of secondary cores */
+ spin_lock(&scr_lock);
val = readl_relaxed(src_base + SRC_SCR);
val &= ~(0x7 << BP_SRC_SCR_CORE1_ENABLE);
writel_relaxed(val, src_base + SRC_SCR);
+ spin_unlock(&scr_lock);
/* clear persistent entry register of primary core */
writel_relaxed(0, src_base + SRC_GPR1);
@@ -80,11 +140,17 @@ void __init imx_src_init(void)
src_base = of_iomap(np, 0);
WARN_ON(!src_base);
+ imx_reset_controller.of_node = np;
+ if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
+ reset_controller_register(&imx_reset_controller);
+
/*
* force warm reset sources to generate cold reset
* for a more reliable restart
*/
+ spin_lock(&scr_lock);
val = readl_relaxed(src_base + SRC_SCR);
val &= ~(1 << BP_SRC_SCR_WARM_RESET_ENABLE);
writel_relaxed(val, src_base + SRC_SCR);
+ spin_unlock(&scr_lock);
}