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authorStephen Boyd <sboyd@codeaurora.org>2016-11-16 11:16:07 -0800
committerStephen Boyd <sboyd@codeaurora.org>2016-11-16 11:16:07 -0800
commitc284a7ba725429a85cbc21d111067b8d003901d9 (patch)
tree880c06711c78a7baac9b7f281357f47aa08d2056 /drivers/clk
parent977f0ab0581d61b2b46cc08857818c425cd24f55 (diff)
parent73cd5e53caba2425f5b73ad0950544d1168ad27b (diff)
Merge tag 'imx-clk-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next
Pull i.MX clock updates from Shawn Guo: - A patch series to fix the long standing issue with glitchy parent mux of ldb_di_clk, which can hang up LVDS display when ipu_di_clk is sourced from ldb_di_clk. - A patch to add imx6ull clock support on top of imx6ul clock driver. * tag 'imx-clk-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: clk: imx: clk-imx6ul: add clk support for imx6ull clk: imx6: Fix procedure to switch the parent of LDB_DI_CLK clk: imx6: Make the LDB_DI0 and LDB_DI1 clocks read-only clk: imx6: Mask mmdc_ch1 handshake for periph2_sel and mmdc_ch1_axi_podf
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/imx/clk-imx6q.c283
-rw-r--r--drivers/clk/imx/clk-imx6ul.c72
-rw-r--r--drivers/clk/imx/clk.h8
3 files changed, 342 insertions, 21 deletions
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index ce8ea10407e4..42ffc1c92bab 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -156,10 +156,267 @@ static struct clk ** const uart_clks[] __initconst = {
NULL
};
+static int ldb_di_sel_by_clock_id(int clock_id)
+{
+ switch (clock_id) {
+ case IMX6QDL_CLK_PLL5_VIDEO_DIV:
+ if (clk_on_imx6q() &&
+ imx_get_soc_revision() == IMX_CHIP_REVISION_1_0)
+ return -ENOENT;
+ return 0;
+ case IMX6QDL_CLK_PLL2_PFD0_352M:
+ return 1;
+ case IMX6QDL_CLK_PLL2_PFD2_396M:
+ return 2;
+ case IMX6QDL_CLK_MMDC_CH1_AXI:
+ return 3;
+ case IMX6QDL_CLK_PLL3_USB_OTG:
+ return 4;
+ default:
+ return -ENOENT;
+ }
+}
+
+static void of_assigned_ldb_sels(struct device_node *node,
+ unsigned int *ldb_di0_sel,
+ unsigned int *ldb_di1_sel)
+{
+ struct of_phandle_args clkspec;
+ int index, rc, num_parents;
+ int parent, child, sel;
+
+ num_parents = of_count_phandle_with_args(node, "assigned-clock-parents",
+ "#clock-cells");
+ for (index = 0; index < num_parents; index++) {
+ rc = of_parse_phandle_with_args(node, "assigned-clock-parents",
+ "#clock-cells", index, &clkspec);
+ if (rc < 0) {
+ /* skip empty (null) phandles */
+ if (rc == -ENOENT)
+ continue;
+ else
+ return;
+ }
+ if (clkspec.np != node || clkspec.args[0] >= IMX6QDL_CLK_END) {
+ pr_err("ccm: parent clock %d not in ccm\n", index);
+ return;
+ }
+ parent = clkspec.args[0];
+
+ rc = of_parse_phandle_with_args(node, "assigned-clocks",
+ "#clock-cells", index, &clkspec);
+ if (rc < 0)
+ return;
+ if (clkspec.np != node || clkspec.args[0] >= IMX6QDL_CLK_END) {
+ pr_err("ccm: child clock %d not in ccm\n", index);
+ return;
+ }
+ child = clkspec.args[0];
+
+ if (child != IMX6QDL_CLK_LDB_DI0_SEL &&
+ child != IMX6QDL_CLK_LDB_DI1_SEL)
+ continue;
+
+ sel = ldb_di_sel_by_clock_id(parent);
+ if (sel < 0) {
+ pr_err("ccm: invalid ldb_di%d parent clock: %d\n",
+ child == IMX6QDL_CLK_LDB_DI1_SEL, parent);
+ continue;
+ }
+
+ if (child == IMX6QDL_CLK_LDB_DI0_SEL)
+ *ldb_di0_sel = sel;
+ if (child == IMX6QDL_CLK_LDB_DI1_SEL)
+ *ldb_di1_sel = sel;
+ }
+}
+
+#define CCM_CCDR 0x04
+#define CCM_CCSR 0x0c
+#define CCM_CS2CDR 0x2c
+
+#define CCDR_MMDC_CH1_MASK BIT(16)
+#define CCSR_PLL3_SW_CLK_SEL BIT(0)
+
+#define CS2CDR_LDB_DI0_CLK_SEL_SHIFT 9
+#define CS2CDR_LDB_DI1_CLK_SEL_SHIFT 12
+
+static void __init imx6q_mmdc_ch1_mask_handshake(void __iomem *ccm_base)
+{
+ unsigned int reg;
+
+ reg = readl_relaxed(ccm_base + CCM_CCDR);
+ reg |= CCDR_MMDC_CH1_MASK;
+ writel_relaxed(reg, ccm_base + CCM_CCDR);
+}
+
+/*
+ * The only way to disable the MMDC_CH1 clock is to move it to pll3_sw_clk
+ * via periph2_clk2_sel and then to disable pll3_sw_clk by selecting the
+ * bypass clock source, since there is no CG bit for mmdc_ch1.
+ */
+static void mmdc_ch1_disable(void __iomem *ccm_base)
+{
+ unsigned int reg;
+
+ clk_set_parent(clk[IMX6QDL_CLK_PERIPH2_CLK2_SEL],
+ clk[IMX6QDL_CLK_PLL3_USB_OTG]);
+
+ /*
+ * Handshake with mmdc_ch1 module must be masked when changing
+ * periph2_clk_sel.
+ */
+ clk_set_parent(clk[IMX6QDL_CLK_PERIPH2], clk[IMX6QDL_CLK_PERIPH2_CLK2]);
+
+ /* Disable pll3_sw_clk by selecting the bypass clock source */
+ reg = readl_relaxed(ccm_base + CCM_CCSR);
+ reg |= CCSR_PLL3_SW_CLK_SEL;
+ writel_relaxed(reg, ccm_base + CCM_CCSR);
+}
+
+static void mmdc_ch1_reenable(void __iomem *ccm_base)
+{
+ unsigned int reg;
+
+ /* Enable pll3_sw_clk by disabling the bypass */
+ reg = readl_relaxed(ccm_base + CCM_CCSR);
+ reg &= ~CCSR_PLL3_SW_CLK_SEL;
+ writel_relaxed(reg, ccm_base + CCM_CCSR);
+
+ clk_set_parent(clk[IMX6QDL_CLK_PERIPH2], clk[IMX6QDL_CLK_PERIPH2_PRE]);
+}
+
+/*
+ * We have to follow a strict procedure when changing the LDB clock source,
+ * otherwise we risk introducing a glitch that can lock up the LDB divider.
+ * Things to keep in mind:
+ *
+ * 1. The current and new parent clock inputs to the mux must be disabled.
+ * 2. The default clock input for ldb_di0/1_clk_sel is mmdc_ch1_axi, which
+ * has no CG bit.
+ * 3. pll2_pfd2_396m can not be gated if it is used as memory clock.
+ * 4. In the RTL implementation of the LDB_DI_CLK_SEL muxes the top four
+ * options are in one mux and the PLL3 option along with three unused
+ * inputs is in a second mux. There is a third mux with two inputs used
+ * to decide between the first and second 4-port mux:
+ *
+ * pll5_video_div 0 --|\
+ * pll2_pfd0_352m 1 --| |_
+ * pll2_pfd2_396m 2 --| | `-|\
+ * mmdc_ch1_axi 3 --|/ | |
+ * | |--
+ * pll3_usb_otg 4 --|\ | |
+ * 5 --| |_,-|/
+ * 6 --| |
+ * 7 --|/
+ *
+ * The ldb_di0/1_clk_sel[1:0] bits control both 4-port muxes at the same time.
+ * The ldb_di0/1_clk_sel[2] bit controls the 2-port mux. The code below
+ * switches the parent to the bottom mux first and then manipulates the top
+ * mux to ensure that no glitch will enter the divider.
+ */
+static void init_ldb_clks(struct device_node *np, void __iomem *ccm_base)
+{
+ unsigned int reg;
+ unsigned int sel[2][4];
+ int i;
+
+ reg = readl_relaxed(ccm_base + CCM_CS2CDR);
+ sel[0][0] = (reg >> CS2CDR_LDB_DI0_CLK_SEL_SHIFT) & 7;
+ sel[1][0] = (reg >> CS2CDR_LDB_DI1_CLK_SEL_SHIFT) & 7;
+
+ sel[0][3] = sel[0][2] = sel[0][1] = sel[0][0];
+ sel[1][3] = sel[1][2] = sel[1][1] = sel[1][0];
+
+ of_assigned_ldb_sels(np, &sel[0][3], &sel[1][3]);
+
+ for (i = 0; i < 2; i++) {
+ /* Warn if a glitch might have been introduced already */
+ if (sel[i][0] != 3) {
+ pr_warn("ccm: ldb_di%d_sel already changed from reset value: %d\n",
+ i, sel[i][0]);
+ }
+
+ if (sel[i][0] == sel[i][3])
+ continue;
+
+ /* Only switch to or from pll2_pfd2_396m if it is disabled */
+ if ((sel[i][0] == 2 || sel[i][3] == 2) &&
+ (clk_get_parent(clk[IMX6QDL_CLK_PERIPH_PRE]) ==
+ clk[IMX6QDL_CLK_PLL2_PFD2_396M])) {
+ pr_err("ccm: ldb_di%d_sel: couldn't disable pll2_pfd2_396m\n",
+ i);
+ sel[i][3] = sel[i][2] = sel[i][1] = sel[i][0];
+ continue;
+ }
+
+ /* First switch to the bottom mux */
+ sel[i][1] = sel[i][0] | 4;
+
+ /* Then configure the top mux before switching back to it */
+ sel[i][2] = sel[i][3] | 4;
+
+ pr_debug("ccm: switching ldb_di%d_sel: %d->%d->%d->%d\n", i,
+ sel[i][0], sel[i][1], sel[i][2], sel[i][3]);
+ }
+
+ if (sel[0][0] == sel[0][3] && sel[1][0] == sel[1][3])
+ return;
+
+ mmdc_ch1_disable(ccm_base);
+
+ for (i = 1; i < 4; i++) {
+ reg = readl_relaxed(ccm_base + CCM_CS2CDR);
+ reg &= ~((7 << CS2CDR_LDB_DI0_CLK_SEL_SHIFT) |
+ (7 << CS2CDR_LDB_DI1_CLK_SEL_SHIFT));
+ reg |= ((sel[0][i] << CS2CDR_LDB_DI0_CLK_SEL_SHIFT) |
+ (sel[1][i] << CS2CDR_LDB_DI1_CLK_SEL_SHIFT));
+ writel_relaxed(reg, ccm_base + CCM_CS2CDR);
+ }
+
+ mmdc_ch1_reenable(ccm_base);
+}
+
+#define CCM_ANALOG_PLL_VIDEO 0xa0
+#define CCM_ANALOG_PFD_480 0xf0
+#define CCM_ANALOG_PFD_528 0x100
+
+#define PLL_ENABLE BIT(13)
+
+#define PFD0_CLKGATE BIT(7)
+#define PFD1_CLKGATE BIT(15)
+#define PFD2_CLKGATE BIT(23)
+#define PFD3_CLKGATE BIT(31)
+
+static void disable_anatop_clocks(void __iomem *anatop_base)
+{
+ unsigned int reg;
+
+ /* Make sure PLL2 PFDs 0-2 are gated */
+ reg = readl_relaxed(anatop_base + CCM_ANALOG_PFD_528);
+ /* Cannot gate PFD2 if pll2_pfd2_396m is the parent of MMDC clock */
+ if (clk_get_parent(clk[IMX6QDL_CLK_PERIPH_PRE]) ==
+ clk[IMX6QDL_CLK_PLL2_PFD2_396M])
+ reg |= PFD0_CLKGATE | PFD1_CLKGATE;
+ else
+ reg |= PFD0_CLKGATE | PFD1_CLKGATE | PFD2_CLKGATE;
+ writel_relaxed(reg, anatop_base + CCM_ANALOG_PFD_528);
+
+ /* Make sure PLL3 PFDs 0-3 are gated */
+ reg = readl_relaxed(anatop_base + CCM_ANALOG_PFD_480);
+ reg |= PFD0_CLKGATE | PFD1_CLKGATE | PFD2_CLKGATE | PFD3_CLKGATE;
+ writel_relaxed(reg, anatop_base + CCM_ANALOG_PFD_480);
+
+ /* Make sure PLL5 is disabled */
+ reg = readl_relaxed(anatop_base + CCM_ANALOG_PLL_VIDEO);
+ reg &= ~PLL_ENABLE;
+ writel_relaxed(reg, anatop_base + CCM_ANALOG_PLL_VIDEO);
+}
+
static void __init imx6q_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
- void __iomem *base;
+ void __iomem *anatop_base, *base;
int i;
int ret;
@@ -172,7 +429,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_ANACLK2] = imx_obtain_fixed_clock("anaclk2", 0);
np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
- base = of_iomap(np, 0);
+ anatop_base = base = of_iomap(np, 0);
WARN_ON(!base);
/* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */
@@ -330,8 +587,20 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_GPU3D_SHADER_SEL] = imx_clk_mux("gpu3d_shader_sel", base + 0x18, 8, 2, gpu3d_shader_sels, ARRAY_SIZE(gpu3d_shader_sels));
clk[IMX6QDL_CLK_IPU1_SEL] = imx_clk_mux("ipu1_sel", base + 0x3c, 9, 2, ipu_sels, ARRAY_SIZE(ipu_sels));
clk[IMX6QDL_CLK_IPU2_SEL] = imx_clk_mux("ipu2_sel", base + 0x3c, 14, 2, ipu_sels, ARRAY_SIZE(ipu_sels));
- clk[IMX6QDL_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[IMX6QDL_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);
+
+ disable_anatop_clocks(anatop_base);
+
+ imx6q_mmdc_ch1_mask_handshake(base);
+
+ /*
+ * The LDB_DI0/1_SEL muxes are registered read-only due to a hardware
+ * bug. Set the muxes to the requested values before registering the
+ * ldb_di_sel clocks.
+ */
+ init_ldb_clks(np, base);
+
+ clk[IMX6QDL_CLK_LDB_DI0_SEL] = imx_clk_mux_ldb("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
+ clk[IMX6QDL_CLK_LDB_DI1_SEL] = imx_clk_mux_ldb("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL] = imx_clk_mux_flags("ipu1_di0_pre_sel", base + 0x34, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT);
clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL] = imx_clk_mux_flags("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT);
clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL] = imx_clk_mux_flags("ipu2_di0_pre_sel", base + 0x38, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT);
@@ -582,12 +851,6 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk_register_clkdev(clk[IMX6QDL_CLK_ENET_REF], "enet_ref", NULL);
- if ((imx_get_soc_revision() != IMX_CHIP_REVISION_1_0) ||
- clk_on_imx6dl()) {
- clk_set_parent(clk[IMX6QDL_CLK_LDB_DI0_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
- clk_set_parent(clk[IMX6QDL_CLK_LDB_DI1_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
- }
-
clk_set_rate(clk[IMX6QDL_CLK_PLL3_PFD1_540M], 540000000);
if (clk_on_imx6dl())
clk_set_parent(clk[IMX6QDL_CLK_IPU1_SEL], clk[IMX6QDL_CLK_PLL3_PFD1_540M]);
diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c
index d1d7787ce211..75c35fb12b60 100644
--- a/drivers/clk/imx/clk-imx6ul.c
+++ b/drivers/clk/imx/clk-imx6ul.c
@@ -64,6 +64,10 @@ static const char *perclk_sels[] = { "ipg", "osc", };
static const char *lcdif_sels[] = { "lcdif_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", };
static const char *csi_sels[] = { "osc", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
static const char *sim_sels[] = { "sim_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", };
+/* epdc_pre_sels, epdc_sels, esai_sels only exists on i.MX6ULL */
+static const char *epdc_pre_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd2_508m", };
+static const char *esai_sels[] = { "pll4_audio_div", "pll3_pfd2_508m", "pll5_video_div", "pll3_usb_otg", };
+static const char *epdc_sels[] = { "epdc_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", };
static struct clk *clks[IMX6UL_CLK_END];
static struct clk_onecell_data clk_data;
@@ -102,6 +106,17 @@ static u32 share_count_audio;
static u32 share_count_sai1;
static u32 share_count_sai2;
static u32 share_count_sai3;
+static u32 share_count_esai;
+
+static inline int clk_on_imx6ul(void)
+{
+ return of_machine_is_compatible("fsl,imx6ul");
+}
+
+static inline int clk_on_imx6ull(void)
+{
+ return of_machine_is_compatible("fsl,imx6ull");
+}
static void __init imx6ul_clocks_init(struct device_node *ccm_node)
{
@@ -238,12 +253,19 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clks[IMX6UL_CLK_QSPI1_SEL] = imx_clk_mux("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels));
clks[IMX6UL_CLK_PERCLK_SEL] = imx_clk_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels));
clks[IMX6UL_CLK_CAN_SEL] = imx_clk_mux("can_sel", base + 0x20, 8, 2, can_sels, ARRAY_SIZE(can_sels));
+ if (clk_on_imx6ull())
+ clks[IMX6ULL_CLK_ESAI_SEL] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, esai_sels, ARRAY_SIZE(esai_sels));
clks[IMX6UL_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels));
clks[IMX6UL_CLK_ENFC_SEL] = imx_clk_mux("enfc_sel", base + 0x2c, 15, 3, enfc_sels, ARRAY_SIZE(enfc_sels));
clks[IMX6UL_CLK_LDB_DI0_SEL] = imx_clk_mux("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di0_sels, ARRAY_SIZE(ldb_di0_sels));
clks[IMX6UL_CLK_SPDIF_SEL] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, spdif_sels, ARRAY_SIZE(spdif_sels));
- clks[IMX6UL_CLK_SIM_PRE_SEL] = imx_clk_mux("sim_pre_sel", base + 0x34, 15, 3, sim_pre_sels, ARRAY_SIZE(sim_pre_sels));
- clks[IMX6UL_CLK_SIM_SEL] = imx_clk_mux("sim_sel", base + 0x34, 9, 3, sim_sels, ARRAY_SIZE(sim_sels));
+ if (clk_on_imx6ul()) {
+ clks[IMX6UL_CLK_SIM_PRE_SEL] = imx_clk_mux("sim_pre_sel", base + 0x34, 15, 3, sim_pre_sels, ARRAY_SIZE(sim_pre_sels));
+ clks[IMX6UL_CLK_SIM_SEL] = imx_clk_mux("sim_sel", base + 0x34, 9, 3, sim_sels, ARRAY_SIZE(sim_sels));
+ } else if (clk_on_imx6ull()) {
+ clks[IMX6ULL_CLK_EPDC_PRE_SEL] = imx_clk_mux("epdc_pre_sel", base + 0x34, 15, 3, epdc_pre_sels, ARRAY_SIZE(epdc_pre_sels));
+ clks[IMX6ULL_CLK_EPDC_SEL] = imx_clk_mux("epdc_sel", base + 0x34, 9, 3, epdc_sels, ARRAY_SIZE(epdc_sels));
+ }
clks[IMX6UL_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels));
clks[IMX6UL_CLK_LCDIF_PRE_SEL] = imx_clk_mux("lcdif_pre_sel", base + 0x38, 15, 3, lcdif_pre_sels, ARRAY_SIZE(lcdif_pre_sels));
clks[IMX6UL_CLK_LCDIF_SEL] = imx_clk_mux("lcdif_sel", base + 0x38, 9, 3, lcdif_sels, ARRAY_SIZE(lcdif_sels));
@@ -276,6 +298,10 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clks[IMX6UL_CLK_SAI3_PODF] = imx_clk_divider("sai3_podf", "sai3_pred", base + 0x28, 16, 6);
clks[IMX6UL_CLK_SAI1_PRED] = imx_clk_divider("sai1_pred", "sai1_sel", base + 0x28, 6, 3);
clks[IMX6UL_CLK_SAI1_PODF] = imx_clk_divider("sai1_podf", "sai1_pred", base + 0x28, 0, 6);
+ if (clk_on_imx6ull()) {
+ clks[IMX6ULL_CLK_ESAI_PRED] = imx_clk_divider("esai_pred", "esai_sel", base + 0x28, 9, 3);
+ clks[IMX6ULL_CLK_ESAI_PODF] = imx_clk_divider("esai_podf", "esai_pred", base + 0x28, 25, 3);
+ }
clks[IMX6UL_CLK_ENFC_PRED] = imx_clk_divider("enfc_pred", "enfc_sel", base + 0x2c, 18, 3);
clks[IMX6UL_CLK_ENFC_PODF] = imx_clk_divider("enfc_podf", "enfc_pred", base + 0x2c, 21, 6);
clks[IMX6UL_CLK_SAI2_PRED] = imx_clk_divider("sai2_pred", "sai2_sel", base + 0x2c, 6, 3);
@@ -298,9 +324,15 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clks[IMX6UL_CLK_APBHDMA] = imx_clk_gate2("apbh_dma", "bch_podf", base + 0x68, 4);
clks[IMX6UL_CLK_ASRC_IPG] = imx_clk_gate2_shared("asrc_ipg", "ahb", base + 0x68, 6, &share_count_asrc);
clks[IMX6UL_CLK_ASRC_MEM] = imx_clk_gate2_shared("asrc_mem", "ahb", base + 0x68, 6, &share_count_asrc);
- clks[IMX6UL_CLK_CAAM_MEM] = imx_clk_gate2("caam_mem", "ahb", base + 0x68, 8);
- clks[IMX6UL_CLK_CAAM_ACLK] = imx_clk_gate2("caam_aclk", "ahb", base + 0x68, 10);
- clks[IMX6UL_CLK_CAAM_IPG] = imx_clk_gate2("caam_ipg", "ipg", base + 0x68, 12);
+ if (clk_on_imx6ul()) {
+ clks[IMX6UL_CLK_CAAM_MEM] = imx_clk_gate2("caam_mem", "ahb", base + 0x68, 8);
+ clks[IMX6UL_CLK_CAAM_ACLK] = imx_clk_gate2("caam_aclk", "ahb", base + 0x68, 10);
+ clks[IMX6UL_CLK_CAAM_IPG] = imx_clk_gate2("caam_ipg", "ipg", base + 0x68, 12);
+ } else if (clk_on_imx6ull()) {
+ clks[IMX6ULL_CLK_DCP_CLK] = imx_clk_gate2("dcp", "ahb", base + 0x68, 10);
+ clks[IMX6UL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x68, 12);
+ clks[IMX6UL_CLK_ENET_AHB] = imx_clk_gate2("enet_ahb", "ahb", base + 0x68, 12);
+ }
clks[IMX6UL_CLK_CAN1_IPG] = imx_clk_gate2("can1_ipg", "ipg", base + 0x68, 14);
clks[IMX6UL_CLK_CAN1_SERIAL] = imx_clk_gate2("can1_serial", "can_podf", base + 0x68, 16);
clks[IMX6UL_CLK_CAN2_IPG] = imx_clk_gate2("can2_ipg", "ipg", base + 0x68, 18);
@@ -309,7 +341,10 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clks[IMX6UL_CLK_GPT2_SERIAL] = imx_clk_gate2("gpt2_serial", "perclk", base + 0x68, 26);
clks[IMX6UL_CLK_UART2_IPG] = imx_clk_gate2("uart2_ipg", "ipg", base + 0x68, 28);
clks[IMX6UL_CLK_UART2_SERIAL] = imx_clk_gate2("uart2_serial", "uart_podf", base + 0x68, 28);
- clks[IMX6UL_CLK_AIPSTZ3] = imx_clk_gate2("aips_tz3", "ahb", base + 0x68, 30);
+ if (clk_on_imx6ul())
+ clks[IMX6UL_CLK_AIPSTZ3] = imx_clk_gate2("aips_tz3", "ahb", base + 0x68, 30);
+ else if (clk_on_imx6ull())
+ clks[IMX6UL_CLK_AIPSTZ3] = imx_clk_gate2("aips_tz3", "ahb", base + 0x80, 18);
/* CCGR1 */
clks[IMX6UL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_podf", base + 0x6c, 0);
@@ -328,6 +363,11 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clks[IMX6UL_CLK_UART4_SERIAL] = imx_clk_gate2("uart4_serail", "uart_podf", base + 0x6c, 24);
/* CCGR2 */
+ if (clk_on_imx6ull()) {
+ clks[IMX6ULL_CLK_ESAI_EXTAL] = imx_clk_gate2_shared("esai_extal", "esai_podf", base + 0x70, 0, &share_count_esai);
+ clks[IMX6ULL_CLK_ESAI_IPG] = imx_clk_gate2_shared("esai_ipg", "ahb", base + 0x70, 0, &share_count_esai);
+ clks[IMX6ULL_CLK_ESAI_MEM] = imx_clk_gate2_shared("esai_mem", "ahb", base + 0x70, 0, &share_count_esai);
+ }
clks[IMX6UL_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x70, 2);
clks[IMX6UL_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6);
clks[IMX6UL_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8);
@@ -340,8 +380,13 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
/* CCGR3 */
clks[IMX6UL_CLK_UART5_IPG] = imx_clk_gate2("uart5_ipg", "ipg", base + 0x74, 2);
clks[IMX6UL_CLK_UART5_SERIAL] = imx_clk_gate2("uart5_serial", "uart_podf", base + 0x74, 2);
- clks[IMX6UL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x74, 4);
- clks[IMX6UL_CLK_ENET_AHB] = imx_clk_gate2("enet_ahb", "ahb", base + 0x74, 4);
+ if (clk_on_imx6ul()) {
+ clks[IMX6UL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x74, 4);
+ clks[IMX6UL_CLK_ENET_AHB] = imx_clk_gate2("enet_ahb", "ahb", base + 0x74, 4);
+ } else if (clk_on_imx6ull()) {
+ clks[IMX6ULL_CLK_EPDC_ACLK] = imx_clk_gate2("epdc_aclk", "axi", base + 0x74, 4);
+ clks[IMX6ULL_CLK_EPDC_PIX] = imx_clk_gate2("epdc_pix", "epdc_podf", base + 0x74, 4);
+ }
clks[IMX6UL_CLK_UART6_IPG] = imx_clk_gate2("uart6_ipg", "ipg", base + 0x74, 6);
clks[IMX6UL_CLK_UART6_SERIAL] = imx_clk_gate2("uart6_serial", "uart_podf", base + 0x74, 6);
clks[IMX6UL_CLK_LCDIF_PIX] = imx_clk_gate2("lcdif_pix", "lcdif_podf", base + 0x74, 10);
@@ -385,8 +430,10 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clks[IMX6UL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0);
clks[IMX6UL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2);
clks[IMX6UL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4);
- clks[IMX6UL_CLK_SIM1] = imx_clk_gate2("sim1", "sim_sel", base + 0x80, 6);
- clks[IMX6UL_CLK_SIM2] = imx_clk_gate2("sim2", "sim_sel", base + 0x80, 8);
+ if (clk_on_imx6ul()) {
+ clks[IMX6UL_CLK_SIM1] = imx_clk_gate2("sim1", "sim_sel", base + 0x80, 6);
+ clks[IMX6UL_CLK_SIM2] = imx_clk_gate2("sim2", "sim_sel", base + 0x80, 8);
+ }
clks[IMX6UL_CLK_EIM] = imx_clk_gate2("eim", "eim_slow_podf", base + 0x80, 10);
clks[IMX6UL_CLK_PWM8] = imx_clk_gate2("pwm8", "perclk", base + 0x80, 16);
clks[IMX6UL_CLK_UART8_IPG] = imx_clk_gate2("uart8_ipg", "ipg", base + 0x80, 14);
@@ -441,7 +488,10 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
}
clk_set_parent(clks[IMX6UL_CLK_CAN_SEL], clks[IMX6UL_CLK_PLL3_60M]);
- clk_set_parent(clks[IMX6UL_CLK_SIM_PRE_SEL], clks[IMX6UL_CLK_PLL3_USB_OTG]);
+ if (clk_on_imx6ul())
+ clk_set_parent(clks[IMX6UL_CLK_SIM_PRE_SEL], clks[IMX6UL_CLK_PLL3_USB_OTG]);
+ else if (clk_on_imx6ull())
+ clk_set_parent(clks[IMX6ULL_CLK_EPDC_PRE_SEL], clks[IMX6UL_CLK_PLL3_PFD2]);
clk_set_parent(clks[IMX6UL_CLK_ENFC_SEL], clks[IMX6UL_CLK_PLL2_PFD2]);
}
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 3799ff82a9b4..4afad3b96a61 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -75,6 +75,14 @@ static inline struct clk *imx_clk_fixed(const char *name, int rate)
return clk_register_fixed_rate(NULL, name, NULL, 0, rate);
}
+static inline struct clk *imx_clk_mux_ldb(const char *name, void __iomem *reg,
+ u8 shift, u8 width, const char **parents, int num_parents)
+{
+ return clk_register_mux(NULL, name, parents, num_parents,
+ CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, reg,
+ shift, width, CLK_MUX_READ_ONLY, &imx_ccm_lock);
+}
+
static inline struct clk *imx_clk_fixed_factor(const char *name,
const char *parent, unsigned int mult, unsigned int div)
{