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-rw-r--r--drivers/clk/imx/clk-imx25.c12
-rw-r--r--drivers/clk/imx/clk-imx27.c13
-rw-r--r--drivers/clk/imx/clk-imx31.c35
-rw-r--r--drivers/clk/imx/clk-imx35.c59
-rw-r--r--drivers/clk/imx/clk-imx51-imx53.c16
-rw-r--r--drivers/clk/imx/clk-imx6q.c12
-rw-r--r--drivers/clk/imx/clk-imx6sl.c12
-rw-r--r--drivers/clk/imx/clk-imx6sx.c9
-rw-r--r--drivers/clk/imx/clk-imx6ul.c18
-rw-r--r--drivers/clk/imx/clk-imx7d.c14
-rw-r--r--drivers/clk/imx/clk-vf610.c1
-rw-r--r--drivers/clk/imx/clk.c38
-rw-r--r--drivers/clk/imx/clk.h1
13 files changed, 209 insertions, 31 deletions
diff --git a/drivers/clk/imx/clk-imx25.c b/drivers/clk/imx/clk-imx25.c
index ec1a4c1dacf1..c4c141cab444 100644
--- a/drivers/clk/imx/clk-imx25.c
+++ b/drivers/clk/imx/clk-imx25.c
@@ -86,6 +86,16 @@ enum mx25_clks {
static struct clk *clk[clk_max];
+static struct clk ** const uart_clks[] __initconst = {
+ &clk[uart_ipg_per],
+ &clk[uart1_ipg],
+ &clk[uart2_ipg],
+ &clk[uart3_ipg],
+ &clk[uart4_ipg],
+ &clk[uart5_ipg],
+ NULL
+};
+
static int __init __mx25_clocks_init(unsigned long osc_rate,
void __iomem *ccm_base)
{
@@ -233,6 +243,8 @@ static int __init __mx25_clocks_init(unsigned long osc_rate,
*/
clk_set_parent(clk[cko_sel], clk[ipg]);
+ imx_register_uart_clocks(uart_clks);
+
return 0;
}
diff --git a/drivers/clk/imx/clk-imx27.c b/drivers/clk/imx/clk-imx27.c
index d9d50d54ef2a..0d7b8df04dfa 100644
--- a/drivers/clk/imx/clk-imx27.c
+++ b/drivers/clk/imx/clk-imx27.c
@@ -47,6 +47,17 @@ static const char *ssi_sel_clks[] = { "spll_gate", "mpll", };
static struct clk *clk[IMX27_CLK_MAX];
static struct clk_onecell_data clk_data;
+static struct clk ** const uart_clks[] __initconst = {
+ &clk[IMX27_CLK_PER1_GATE],
+ &clk[IMX27_CLK_UART1_IPG_GATE],
+ &clk[IMX27_CLK_UART2_IPG_GATE],
+ &clk[IMX27_CLK_UART3_IPG_GATE],
+ &clk[IMX27_CLK_UART4_IPG_GATE],
+ &clk[IMX27_CLK_UART5_IPG_GATE],
+ &clk[IMX27_CLK_UART6_IPG_GATE],
+ NULL
+};
+
static void __init _mx27_clocks_init(unsigned long fref)
{
BUG_ON(!ccm);
@@ -163,6 +174,8 @@ static void __init _mx27_clocks_init(unsigned long fref)
clk_prepare_enable(clk[IMX27_CLK_EMI_AHB_GATE]);
+ imx_register_uart_clocks(uart_clks);
+
imx_print_silicon_rev("i.MX27", mx27_revision());
}
diff --git a/drivers/clk/imx/clk-imx31.c b/drivers/clk/imx/clk-imx31.c
index 1f8383475bb3..f65b8b1a974a 100644
--- a/drivers/clk/imx/clk-imx31.c
+++ b/drivers/clk/imx/clk-imx31.c
@@ -62,7 +62,17 @@ enum mx31_clks {
static struct clk *clk[clk_max];
static struct clk_onecell_data clk_data;
-int __init mx31_clocks_init(unsigned long fref)
+static struct clk ** const uart_clks[] __initconst = {
+ &clk[ipg],
+ &clk[uart1_gate],
+ &clk[uart2_gate],
+ &clk[uart3_gate],
+ &clk[uart4_gate],
+ &clk[uart5_gate],
+ NULL
+};
+
+static void __init _mx31_clocks_init(unsigned long fref)
{
void __iomem *base;
struct device_node *np;
@@ -132,6 +142,12 @@ int __init mx31_clocks_init(unsigned long fref)
imx_check_clocks(clk, ARRAY_SIZE(clk));
+ clk_set_parent(clk[csi], clk[upll]);
+ clk_prepare_enable(clk[emi_gate]);
+ clk_prepare_enable(clk[iim_gate]);
+ mx31_revision();
+ clk_disable_unprepare(clk[iim_gate]);
+
np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm");
if (np) {
@@ -139,6 +155,13 @@ int __init mx31_clocks_init(unsigned long fref)
clk_data.clk_num = ARRAY_SIZE(clk);
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
}
+}
+
+int __init mx31_clocks_init(void)
+{
+ u32 fref = 26000000; /* default */
+
+ _mx31_clocks_init(fref);
clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
@@ -194,12 +217,8 @@ int __init mx31_clocks_init(unsigned long fref)
clk_register_clkdev(clk[sdma_gate], NULL, "imx31-sdma");
clk_register_clkdev(clk[iim_gate], "iim", NULL);
- clk_set_parent(clk[csi], clk[upll]);
- clk_prepare_enable(clk[emi_gate]);
- clk_prepare_enable(clk[iim_gate]);
- mx31_revision();
- clk_disable_unprepare(clk[iim_gate]);
+ imx_register_uart_clocks(uart_clks);
mxc_timer_init(MX31_GPT1_BASE_ADDR, MX31_INT_GPT, GPT_TYPE_IMX31);
return 0;
@@ -218,5 +237,7 @@ int __init mx31_clocks_init_dt(void)
break;
}
- return mx31_clocks_init(fref);
+ _mx31_clocks_init(fref);
+
+ return 0;
}
diff --git a/drivers/clk/imx/clk-imx35.c b/drivers/clk/imx/clk-imx35.c
index 8623cd4e49fd..a71d24cb4c06 100644
--- a/drivers/clk/imx/clk-imx35.c
+++ b/drivers/clk/imx/clk-imx35.c
@@ -84,7 +84,15 @@ enum mx35_clks {
static struct clk *clk[clk_max];
-int __init mx35_clocks_init(void)
+static struct clk ** const uart_clks[] __initconst = {
+ &clk[ipg],
+ &clk[uart1_gate],
+ &clk[uart2_gate],
+ &clk[uart3_gate],
+ NULL
+};
+
+static void __init _mx35_clocks_init(void)
{
void __iomem *base;
u32 pdr0, consumer_sel, hsp_sel;
@@ -220,6 +228,32 @@ int __init mx35_clocks_init(void)
imx_check_clocks(clk, ARRAY_SIZE(clk));
+ clk_prepare_enable(clk[spba_gate]);
+ clk_prepare_enable(clk[gpio1_gate]);
+ clk_prepare_enable(clk[gpio2_gate]);
+ clk_prepare_enable(clk[gpio3_gate]);
+ clk_prepare_enable(clk[iim_gate]);
+ clk_prepare_enable(clk[emi_gate]);
+ clk_prepare_enable(clk[max_gate]);
+ clk_prepare_enable(clk[iomuxc_gate]);
+
+ /*
+ * SCC is needed to boot via mmc after a watchdog reset. The clock code
+ * before conversion to common clk also enabled UART1 (which isn't
+ * handled here and not needed for mmc) and IIM (which is enabled
+ * unconditionally above).
+ */
+ clk_prepare_enable(clk[scc_gate]);
+
+ imx_register_uart_clocks(uart_clks);
+
+ imx_print_silicon_rev("i.MX35", mx35_revision());
+}
+
+int __init mx35_clocks_init(void)
+{
+ _mx35_clocks_init();
+
clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
@@ -279,25 +313,6 @@ int __init mx35_clocks_init(void)
clk_register_clkdev(clk[csi_gate], NULL, "mx3-camera.0");
clk_register_clkdev(clk[admux_gate], "audmux", NULL);
- clk_prepare_enable(clk[spba_gate]);
- clk_prepare_enable(clk[gpio1_gate]);
- clk_prepare_enable(clk[gpio2_gate]);
- clk_prepare_enable(clk[gpio3_gate]);
- clk_prepare_enable(clk[iim_gate]);
- clk_prepare_enable(clk[emi_gate]);
- clk_prepare_enable(clk[max_gate]);
- clk_prepare_enable(clk[iomuxc_gate]);
-
- /*
- * SCC is needed to boot via mmc after a watchdog reset. The clock code
- * before conversion to common clk also enabled UART1 (which isn't
- * handled here and not needed for mmc) and IIM (which is enabled
- * unconditionally above).
- */
- clk_prepare_enable(clk[scc_gate]);
-
- imx_print_silicon_rev("i.MX35", mx35_revision());
-
mxc_timer_init(MX35_GPT1_BASE_ADDR, MX35_INT_GPT, GPT_TYPE_IMX31);
return 0;
@@ -305,10 +320,10 @@ int __init mx35_clocks_init(void)
static void __init mx35_clocks_init_dt(struct device_node *ccm_node)
{
+ _mx35_clocks_init();
+
clk_data.clks = clk;
clk_data.clk_num = ARRAY_SIZE(clk);
of_clk_add_provider(ccm_node, of_clk_src_onecell_get, &clk_data);
-
- mx35_clocks_init();
}
CLK_OF_DECLARE(imx35, "fsl,imx35-ccm", mx35_clocks_init_dt);
diff --git a/drivers/clk/imx/clk-imx51-imx53.c b/drivers/clk/imx/clk-imx51-imx53.c
index a7e4f394be0d..c6770348d2ab 100644
--- a/drivers/clk/imx/clk-imx51-imx53.c
+++ b/drivers/clk/imx/clk-imx51-imx53.c
@@ -130,6 +130,20 @@ static const char *cpu_podf_sels[] = { "pll1_sw", "step_sel" };
static struct clk *clk[IMX5_CLK_END];
static struct clk_onecell_data clk_data;
+static struct clk ** const uart_clks[] __initconst = {
+ &clk[IMX5_CLK_UART1_IPG_GATE],
+ &clk[IMX5_CLK_UART1_PER_GATE],
+ &clk[IMX5_CLK_UART2_IPG_GATE],
+ &clk[IMX5_CLK_UART2_PER_GATE],
+ &clk[IMX5_CLK_UART3_IPG_GATE],
+ &clk[IMX5_CLK_UART3_PER_GATE],
+ &clk[IMX5_CLK_UART4_IPG_GATE],
+ &clk[IMX5_CLK_UART4_PER_GATE],
+ &clk[IMX5_CLK_UART5_IPG_GATE],
+ &clk[IMX5_CLK_UART5_PER_GATE],
+ NULL
+};
+
static void __init mx5_clocks_common_init(void __iomem *ccm_base)
{
clk[IMX5_CLK_DUMMY] = imx_clk_fixed("dummy", 0);
@@ -310,6 +324,8 @@ static void __init mx5_clocks_common_init(void __iomem *ccm_base)
clk_prepare_enable(clk[IMX5_CLK_TMAX1]);
clk_prepare_enable(clk[IMX5_CLK_TMAX2]); /* esdhc2, fec */
clk_prepare_enable(clk[IMX5_CLK_TMAX3]); /* esdhc1, esdhc4 */
+
+ imx_register_uart_clocks(uart_clks);
}
static void __init mx50_clocks_init(struct device_node *np)
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index b2c1c047dc94..c1935081d34a 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -119,6 +119,7 @@ static unsigned int share_count_ssi1;
static unsigned int share_count_ssi2;
static unsigned int share_count_ssi3;
static unsigned int share_count_mipi_core_cfg;
+static unsigned int share_count_spdif;
static inline int clk_on_imx6q(void)
{
@@ -130,6 +131,12 @@ static inline int clk_on_imx6dl(void)
return of_machine_is_compatible("fsl,imx6dl");
}
+static struct clk ** const uart_clks[] __initconst = {
+ &clk[IMX6QDL_CLK_UART_IPG],
+ &clk[IMX6QDL_CLK_UART_SERIAL],
+ NULL
+};
+
static void __init imx6q_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@@ -456,7 +463,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_SATA] = imx_clk_gate2("sata", "ahb", base + 0x7c, 4);
clk[IMX6QDL_CLK_SDMA] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6);
clk[IMX6QDL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
- clk[IMX6QDL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif_podf", base + 0x7c, 14);
+ clk[IMX6QDL_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif_podf", base + 0x7c, 14, &share_count_spdif);
+ clk[IMX6QDL_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_spdif);
clk[IMX6QDL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
clk[IMX6QDL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
clk[IMX6QDL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
@@ -541,5 +549,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
/* All existing boards with PCIe use LVDS1 */
if (IS_ENABLED(CONFIG_PCI_IMX6))
clk_set_parent(clk[IMX6QDL_CLK_LVDS1_SEL], clk[IMX6QDL_CLK_SATA_REF_100M]);
+
+ imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx6q, "fsl,imx6q-ccm", imx6q_clocks_init);
diff --git a/drivers/clk/imx/clk-imx6sl.c b/drivers/clk/imx/clk-imx6sl.c
index a0d4cf26cfa9..1be6230a07af 100644
--- a/drivers/clk/imx/clk-imx6sl.c
+++ b/drivers/clk/imx/clk-imx6sl.c
@@ -97,6 +97,7 @@ static struct clk_div_table video_div_table[] = {
static unsigned int share_count_ssi1;
static unsigned int share_count_ssi2;
static unsigned int share_count_ssi3;
+static unsigned int share_count_spdif;
static struct clk *clks[IMX6SL_CLK_END];
static struct clk_onecell_data clk_data;
@@ -184,6 +185,12 @@ void imx6sl_set_wait_clk(bool enter)
imx6sl_enable_pll_arm(false);
}
+static struct clk ** const uart_clks[] __initconst = {
+ &clks[IMX6SL_CLK_UART],
+ &clks[IMX6SL_CLK_UART_SERIAL],
+ NULL
+};
+
static void __init imx6sl_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@@ -391,7 +398,8 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
clks[IMX6SL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22);
clks[IMX6SL_CLK_SDMA] = imx_clk_gate2("sdma", "ipg", base + 0x7c, 6);
clks[IMX6SL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
- clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif0_podf", base + 0x7c, 14);
+ clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif0_podf", base + 0x7c, 14, &share_count_spdif);
+ clks[IMX6SL_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_spdif);
clks[IMX6SL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
clks[IMX6SL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
clks[IMX6SL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
@@ -439,5 +447,7 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
clk_set_parent(clks[IMX6SL_CLK_LCDIF_AXI_SEL],
clks[IMX6SL_CLK_PLL2_PFD2]);
+
+ imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init);
diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c
index 5b95c2c2bf52..fea125eb4330 100644
--- a/drivers/clk/imx/clk-imx6sx.c
+++ b/drivers/clk/imx/clk-imx6sx.c
@@ -135,6 +135,12 @@ static u32 share_count_ssi1;
static u32 share_count_ssi2;
static u32 share_count_ssi3;
+static struct clk ** const uart_clks[] __initconst = {
+ &clks[IMX6SX_CLK_UART_IPG],
+ &clks[IMX6SX_CLK_UART_SERIAL],
+ NULL
+};
+
static void __init imx6sx_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@@ -454,6 +460,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
clks[IMX6SX_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12);
clks[IMX6SX_CLK_AUDIO] = imx_clk_gate2_shared("audio", "audio_podf", base + 0x7c, 14, &share_count_audio);
clks[IMX6SX_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif_podf", base + 0x7c, 14, &share_count_audio);
+ clks[IMX6SX_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_audio);
clks[IMX6SX_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1);
clks[IMX6SX_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2);
clks[IMX6SX_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3);
@@ -557,5 +564,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]);
clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]);
+
+ imx_register_uart_clocks(uart_clks);
}
CLK_OF_DECLARE(imx6sx, "fsl,imx6sx-ccm", imx6sx_clocks_init);
diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c
index aaa36650695f..01718d05e952 100644
--- a/drivers/clk/imx/clk-imx6ul.c
+++ b/drivers/clk/imx/clk-imx6ul.c
@@ -407,6 +407,24 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
clk_data.clk_num = ARRAY_SIZE(clks);
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+ /*
+ * Lower the AHB clock rate before changing the parent clock source,
+ * as AHB clock rate can NOT be higher than 133MHz, but its parent
+ * will be switched from 396MHz PFD to 528MHz PLL in order to increase
+ * AXI clock rate, so we need to lower AHB rate first to make sure at
+ * any time, AHB rate is <= 133MHz.
+ */
+ clk_set_rate(clks[IMX6UL_CLK_AHB], 99000000);
+
+ /* Change periph_pre clock to pll2_bus to adjust AXI rate to 264MHz */
+ clk_set_parent(clks[IMX6UL_CLK_PERIPH_CLK2_SEL], clks[IMX6UL_CLK_PLL3_USB_OTG]);
+ clk_set_parent(clks[IMX6UL_CLK_PERIPH], clks[IMX6UL_CLK_PERIPH_CLK2]);
+ clk_set_parent(clks[IMX6UL_CLK_PERIPH_PRE], clks[IMX6UL_CLK_PLL2_BUS]);
+ clk_set_parent(clks[IMX6UL_CLK_PERIPH], clks[IMX6UL_CLK_PERIPH_PRE]);
+
+ /* Make sure AHB rate is 132MHz */
+ clk_set_rate(clks[IMX6UL_CLK_AHB], 132000000);
+
/* set perclk to from OSC */
clk_set_parent(clks[IMX6UL_CLK_PERCLK_SEL], clks[IMX6UL_CLK_OSC]);
diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
index 71f3a94b472c..448ef321948b 100644
--- a/drivers/clk/imx/clk-imx7d.c
+++ b/drivers/clk/imx/clk-imx7d.c
@@ -363,6 +363,17 @@ static const char *pll_video_bypass_sel[] = { "pll_video_main", "pll_video_main_
static struct clk_onecell_data clk_data;
+static struct clk ** const uart_clks[] __initconst = {
+ &clks[IMX7D_UART1_ROOT_CLK],
+ &clks[IMX7D_UART2_ROOT_CLK],
+ &clks[IMX7D_UART3_ROOT_CLK],
+ &clks[IMX7D_UART4_ROOT_CLK],
+ &clks[IMX7D_UART5_ROOT_CLK],
+ &clks[IMX7D_UART6_ROOT_CLK],
+ &clks[IMX7D_UART7_ROOT_CLK],
+ NULL
+};
+
static void __init imx7d_clocks_init(struct device_node *ccm_node)
{
struct device_node *np;
@@ -818,6 +829,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
clks[IMX7D_CSI_MCLK_ROOT_CLK] = imx_clk_gate2("csi_mclk_root_clk", "csi_mclk_post_div", base + 0x4490, 0);
clks[IMX7D_AUDIO_MCLK_ROOT_CLK] = imx_clk_gate2("audio_mclk_root_clk", "audio_mclk_post_div", base + 0x4790, 0);
clks[IMX7D_WRCLK_ROOT_CLK] = imx_clk_gate2("wrclk_root_clk", "wrclk_post_div", base + 0x47a0, 0);
+ clks[IMX7D_ADC_ROOT_CLK] = imx_clk_gate2("adc_root_clk", "ipg_root_clk", base + 0x4200, 0);
clks[IMX7D_GPT_3M_CLK] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8);
@@ -856,5 +868,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
/* set uart module clock's parent clock source that must be great then 80MHz */
clk_set_parent(clks[IMX7D_UART1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);
+ imx_register_uart_clocks(uart_clks);
+
}
CLK_OF_DECLARE(imx7d, "fsl,imx7d-ccm", imx7d_clocks_init);
diff --git a/drivers/clk/imx/clk-vf610.c b/drivers/clk/imx/clk-vf610.c
index bff45ead7389..d1b1c95177bb 100644
--- a/drivers/clk/imx/clk-vf610.c
+++ b/drivers/clk/imx/clk-vf610.c
@@ -387,6 +387,7 @@ static void __init vf610_clocks_init(struct device_node *ccm_node)
clk[VF610_CLK_SNVS] = imx_clk_gate2("snvs-rtc", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(7));
clk[VF610_CLK_DAP] = imx_clk_gate("dap", "platform_bus", CCM_CCSR, 24);
+ clk[VF610_CLK_OCOTP] = imx_clk_gate("ocotp", "ipg_bus", CCM_CCGR6, CCM_CCGRx_CGn(5));
imx_check_clocks(clk, ARRAY_SIZE(clk));
diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c
index df12b5307175..a634b1185be3 100644
--- a/drivers/clk/imx/clk.c
+++ b/drivers/clk/imx/clk.c
@@ -73,3 +73,41 @@ void imx_cscmr1_fixup(u32 *val)
*val ^= CSCMR1_FIXUP;
return;
}
+
+static int imx_keep_uart_clocks __initdata;
+static struct clk ** const *imx_uart_clocks __initdata;
+
+static int __init imx_keep_uart_clocks_param(char *str)
+{
+ imx_keep_uart_clocks = 1;
+
+ return 0;
+}
+__setup_param("earlycon", imx_keep_uart_earlycon,
+ imx_keep_uart_clocks_param, 0);
+__setup_param("earlyprintk", imx_keep_uart_earlyprintk,
+ imx_keep_uart_clocks_param, 0);
+
+void __init imx_register_uart_clocks(struct clk ** const clks[])
+{
+ if (imx_keep_uart_clocks) {
+ int i;
+
+ imx_uart_clocks = clks;
+ for (i = 0; imx_uart_clocks[i]; i++)
+ clk_prepare_enable(*imx_uart_clocks[i]);
+ }
+}
+
+static int __init imx_clk_disable_uart(void)
+{
+ if (imx_keep_uart_clocks && imx_uart_clocks) {
+ int i;
+
+ for (i = 0; imx_uart_clocks[i]; i++)
+ clk_disable_unprepare(*imx_uart_clocks[i]);
+ }
+
+ return 0;
+}
+late_initcall_sync(imx_clk_disable_uart);
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 1049b0c7d818..c94ac5c26226 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -7,6 +7,7 @@
extern spinlock_t imx_ccm_lock;
void imx_check_clocks(struct clk *clks[], unsigned int count);
+void imx_register_uart_clocks(struct clk ** const clks[]);
extern void imx_cscmr1_fixup(u32 *val);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 15:31:54 +0000