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Merge branch 'clk-imx7ulp' into clk-next

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* clk-imx7ulp:
  clk: imx: imx7ulp: add arm hsrun mode clocks support
  dt-bindings: clock: imx7ulp: add HSRUN mode related clocks
This commit is contained in:
Stephen Boyd 2018-12-14 14:03:38 -08:00
commit b677574bdf
2 changed files with 38 additions and 2 deletions
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31
drivers/clk/imx/clk-imx7ulp.c
View File

@ -29,6 +29,7 @@ static const char * const ddr_sels[] = { "apll_pfd_sel", "upll", };
static const char * const nic_sels[] = { "firc", "ddr_clk", };
static const char * const periph_plat_sels[] = { "dummy", "nic1_bus_clk", "nic1_clk", "ddr_clk", "apll_pfd2", "apll_pfd1", "apll_pfd0", "upll", };
static const char * const periph_bus_sels[] = { "dummy", "sosc_bus_clk", "mpll", "firc_bus_clk", "rosc", "nic1_bus_clk", "nic1_clk", "spll_bus_clk", };
static const char * const arm_sels[] = { "divcore", "dummy", "dummy", "hsrun_divcore", };
/* used by sosc/sirc/firc/ddr/spll/apll dividers */
static const struct clk_div_table ulp_div_table[] = {
@ -102,10 +103,12 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
/* scs/ddr/nic select different clock source requires that clock to be enabled first */
clks[IMX7ULP_CLK_SYS_SEL] = imx_clk_hw_mux2("scs_sel", base + 0x14, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
clks[IMX7ULP_CLK_HSRUN_SYS_SEL] = imx_clk_hw_mux2("hsrun_scs_sel", base + 0x1c, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));
clks[IMX7ULP_CLK_NIC_SEL] = imx_clk_hw_mux2("nic_sel", base + 0x40, 28, 1, nic_sels, ARRAY_SIZE(nic_sels));
clks[IMX7ULP_CLK_DDR_SEL] = imx_clk_hw_mux_flags("ddr_sel", base + 0x30, 24, 1, ddr_sels, ARRAY_SIZE(ddr_sels), CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE);
clks[IMX7ULP_CLK_CORE_DIV] = imx_clk_hw_divider_flags("divcore", "scs_sel", base + 0x14, 16, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
clks[IMX7ULP_CLK_CORE_DIV] = imx_clk_hw_divider_flags("divcore", "scs_sel", base + 0x14, 16, 4, CLK_SET_RATE_PARENT);
clks[IMX7ULP_CLK_HSRUN_CORE_DIV] = imx_clk_hw_divider_flags("hsrun_divcore", "hsrun_scs_sel", base + 0x1c, 16, 4, CLK_SET_RATE_PARENT);
clks[IMX7ULP_CLK_DDR_DIV] = imx_clk_divider_gate("ddr_clk", "ddr_sel", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, base + 0x30, 0, 3,
0, ulp_div_table, &imx_ccm_lock);
@ -218,3 +221,29 @@ static void __init imx7ulp_clk_pcc3_init(struct device_node *np)
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
}
CLK_OF_DECLARE(imx7ulp_clk_pcc3, "fsl,imx7ulp-pcc3", imx7ulp_clk_pcc3_init);
static void __init imx7ulp_clk_smc1_init(struct device_node *np)
{
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clks;
void __iomem *base;
clk_data = kzalloc(sizeof(*clk_data) + sizeof(*clk_data->hws) *
IMX7ULP_CLK_SMC1_END, GFP_KERNEL);
if (!clk_data)
return;
clk_data->num = IMX7ULP_CLK_SMC1_END;
clks = clk_data->hws;
/* SMC1 */
base = of_iomap(np, 0);
WARN_ON(!base);
clks[IMX7ULP_CLK_ARM] = imx_clk_hw_mux_flags("arm", base + 0x10, 8, 2, arm_sels, ARRAY_SIZE(arm_sels), CLK_IS_CRITICAL);
imx_check_clk_hws(clks, clk_data->num);
of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
}
CLK_OF_DECLARE(imx7ulp_clk_smc1, "fsl,imx7ulp-smc1", imx7ulp_clk_smc1_init);

9
include/dt-bindings/clock/imx7ulp-clock.h
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@ -54,8 +54,10 @@
#define IMX7ULP_CLK_SOSC_BUS_CLK 41
#define IMX7ULP_CLK_FIRC_BUS_CLK 42
#define IMX7ULP_CLK_SPLL_BUS_CLK 43
#define IMX7ULP_CLK_HSRUN_SYS_SEL 44
#define IMX7ULP_CLK_HSRUN_CORE_DIV 45
#define IMX7ULP_CLK_SCG1_END 44
#define IMX7ULP_CLK_SCG1_END 46
/* PCC2 */
#define IMX7ULP_CLK_DMA1 0
@ -106,4 +108,9 @@
#define IMX7ULP_CLK_PCC3_END 16
/* SMC1 */
#define IMX7ULP_CLK_ARM 0
#define IMX7ULP_CLK_SMC1_END 1
#endif /* __DT_BINDINGS_CLOCK_IMX7ULP_H */