--- /dev/null
+* Clock bindings for Freescale i.MX31
+
+Required properties:
+- compatible: Should be "fsl,imx31-ccm"
+- reg: Address and length of the register set
+- interrupts: Should contain CCM interrupt
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell. The following is a full list of i.MX31
+clocks and IDs.
+
+ Clock ID
+ -----------------------
+ dummy 0
+ ckih 1
+ ckil 2
+ mpll 3
+ spll 4
+ upll 5
+ mcu_main 6
+ hsp 7
+ ahb 8
+ nfc 9
+ ipg 10
+ per_div 11
+ per 12
+ csi_sel 13
+ fir_sel 14
+ csi_div 15
+ usb_div_pre 16
+ usb_div_post 17
+ fir_div_pre 18
+ fir_div_post 19
+ sdhc1_gate 20
+ sdhc2_gate 21
+ gpt_gate 22
+ epit1_gate 23
+ epit2_gate 24
+ iim_gate 25
+ ata_gate 26
+ sdma_gate 27
+ cspi3_gate 28
+ rng_gate 29
+ uart1_gate 30
+ uart2_gate 31
+ ssi1_gate 32
+ i2c1_gate 33
+ i2c2_gate 34
+ i2c3_gate 35
+ hantro_gate 36
+ mstick1_gate 37
+ mstick2_gate 38
+ csi_gate 39
+ rtc_gate 40
+ wdog_gate 41
+ pwm_gate 42
+ sim_gate 43
+ ect_gate 44
+ usb_gate 45
+ kpp_gate 46
+ ipu_gate 47
+ uart3_gate 48
+ uart4_gate 49
+ uart5_gate 50
+ owire_gate 51
+ ssi2_gate 52
+ cspi1_gate 53
+ cspi2_gate 54
+ gacc_gate 55
+ emi_gate 56
+ rtic_gate 57
+ firi_gate 58
+
+Examples:
+
+clks: ccm@53f80000{
+ compatible = "fsl,imx31-ccm";
+ reg = <0x53f80000 0x4000>;
+ interrupts = <0 31 0x04 0 53 0x04>;
+ #clock-cells = <1>;
+};
+
+uart1: serial@43f90000 {
+ compatible = "fsl,imx31-uart", "fsl,imx21-uart";
+ reg = <0x43f90000 0x4000>;
+ interrupts = <45>;
+ clocks = <&clks 10>, <&clks 30>;
+ clock-names = "ipg", "per";
+ status = "disabled";
+};
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43f90000 0x4000>;
interrupts = <45>;
+ clocks = <&clks 10>, <&clks 30>;
+ clock-names = "ipg", "per";
status = "disabled";
};
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43f94000 0x4000>;
interrupts = <32>;
+ clocks = <&clks 10>, <&clks 31>;
+ clock-names = "ipg", "per";
status = "disabled";
};
uart4: serial@43fb0000 {
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43fb0000 0x4000>;
+ clocks = <&clks 10>, <&clks 49>;
+ clock-names = "ipg", "per";
interrupts = <46>;
status = "disabled";
};
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x43fb4000 0x4000>;
interrupts = <47>;
+ clocks = <&clks 10>, <&clks 50>;
+ clock-names = "ipg", "per";
status = "disabled";
};
};
compatible = "fsl,imx31-uart", "fsl,imx21-uart";
reg = <0x5000c000 0x4000>;
interrupts = <18>;
+ clocks = <&clks 10>, <&clks 48>;
+ clock-names = "ipg", "per";
status = "disabled";
};
+
+ clks: ccm@53f80000{
+ compatible = "fsl,imx31-ccm";
+ reg = <0x53f80000 0x4000>;
+ interrupts = <0 31 0x04 0 53 0x04>;
+ #clock-cells = <1>;
+ };
};
};
};
CONFIG_ARCH_MXC=y
CONFIG_ARCH_MULTI_V6=y
CONFIG_ARCH_MULTI_V7=y
+CONFIG_MACH_IMX31_DT=y
CONFIG_MACH_MX31LILLY=y
CONFIG_MACH_MX31LITE=y
CONFIG_MACH_PCM037=y
"32k", "usb_div", "dptc",
};
-static const char *ssi_sel_clks[] = { "spll", "mpll", };
+static const char *ssi_sel_clks[] = { "spll_gate", "mpll", };
enum mx27_clks {
dummy, ckih, ckil, mpll, spll, mpll_main2, ahb, ipg, nfc_div, per1_div,
csi_ahb_gate, brom_ahb_gate, ata_ahb_gate, wdog_ipg_gate, usb_ipg_gate,
uart6_ipg_gate, uart5_ipg_gate, uart4_ipg_gate, uart3_ipg_gate,
uart2_ipg_gate, uart1_ipg_gate, ckih_div1p5, fpm, mpll_osc_sel,
- mpll_sel, clk_max
+ mpll_sel, spll_gate, clk_max
};
static struct clk *clk[clk_max];
ARRAY_SIZE(mpll_sel_clks));
clk[mpll] = imx_clk_pllv1("mpll", "mpll_sel", CCM_MPCTL0);
clk[spll] = imx_clk_pllv1("spll", "ckih", CCM_SPCTL0);
+ clk[spll_gate] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1);
clk[mpll_main2] = imx_clk_fixed_factor("mpll_main2", "mpll", 2, 3);
if (mx27_revision() >= IMX_CHIP_REVISION_2_0) {
clk[per4_div] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6);
clk[vpu_sel] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks));
clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6);
- clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 28, 3);
+ clk[usb_div] = imx_clk_divider("usb_div", "spll_gate", CCM_CSCR, 28, 3);
clk[cpu_sel] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks));
clk[clko_sel] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks));
if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
static const char *fir_sel[] = { "mcu_main", "upll", "spll" };
enum mx31_clks {
- ckih, ckil, mpll, spll, upll, mcu_main, hsp, ahb, nfc, ipg, per_div,
- per, csi, fir, csi_div, usb_div_pre, usb_div_post, fir_div_pre,
+ dummy, ckih, ckil, mpll, spll, upll, mcu_main, hsp, ahb, nfc, ipg,
+ per_div, per, csi, fir, csi_div, usb_div_pre, usb_div_post, fir_div_pre,
fir_div_post, sdhc1_gate, sdhc2_gate, gpt_gate, epit1_gate, epit2_gate,
iim_gate, ata_gate, sdma_gate, cspi3_gate, rng_gate, uart1_gate,
uart2_gate, ssi1_gate, i2c1_gate, i2c2_gate, i2c3_gate, hantro_gate,
};
static struct clk *clk[clk_max];
+static struct clk_onecell_data clk_data;
int __init mx31_clocks_init(unsigned long fref)
{
void __iomem *base = MX31_IO_ADDRESS(MX31_CCM_BASE_ADDR);
int i;
+ struct device_node *np;
+ clk[dummy] = imx_clk_fixed("dummy", 0);
clk[ckih] = imx_clk_fixed("ckih", fref);
clk[ckil] = imx_clk_fixed("ckil", 32768);
clk[mpll] = imx_clk_pllv1("mpll", "ckih", base + MXC_CCM_MPCTL);
pr_err("imx31 clk %d: register failed with %ld\n",
i, PTR_ERR(clk[i]));
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx31-ccm");
+
+ if (np) {
+ clk_data.clks = clk;
+ clk_data.clk_num = ARRAY_SIZE(clk);
+ of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+ }
+
clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
clk_register_clkdev(clk[ipg], "ipg", "imx-gpt.0");
clk_register_clkdev(clk[cspi1_gate], NULL, "imx31-cspi.0");
static struct clk *clk[clk_max];
-int __init mx35_clocks_init()
+int __init mx35_clocks_init(void)
{
void __iomem *base = MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR);
u32 pdr0, consumer_sel, hsp_sel;
struct arm_ahb_div *aad;
unsigned char *hsp_div;
- int i;
+ u32 i;
pdr0 = __raw_readl(base + MXC_CCM_PDR0);
consumer_sel = (pdr0 >> 16) & 0xf;
#include "common.h"
#include "mx31.h"
-static const struct of_dev_auxdata imx31_auxdata_lookup[] __initconst = {
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART1_BASE_ADDR,
- "imx21-uart.0", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART2_BASE_ADDR,
- "imx21-uart.1", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART3_BASE_ADDR,
- "imx21-uart.2", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART4_BASE_ADDR,
- "imx21-uart.3", NULL),
- OF_DEV_AUXDATA("fsl,imx31-uart", MX31_UART5_BASE_ADDR,
- "imx21-uart.4", NULL),
- { /* sentinel */ }
-};
-
static void __init imx31_dt_init(void)
{
- of_platform_populate(NULL, of_default_bus_match_table,
- imx31_auxdata_lookup, NULL);
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *imx31_dt_board_compat[] __initdata = {
projects / firefly-linux-kernel-4.4.55.git / commitdiff