diff options
| author | Gabriel Fernandez <gabriel.fernandez@st.com> | 2018-03-08 17:54:05 +0100 |
|---|---|---|
| committer | Michael Turquette <mturquette@baylibre.com> | 2018-03-11 15:40:34 -0700 |
| commit | 3a430067838a4e47ff473999b2f6a5a7be92dba7 (patch) | |
| tree | 303e72291f58449e72d526c4d82dee8626e5ae07 /drivers/clk/clk-stm32mp1.c | |
| parent | 44cd455a8edb4026ae2c1c6fb6895523712c4896 (diff) | |
clk: stm32mp1: add Debug clocks
RCC manages clock for debug and trace.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Diffstat (limited to 'drivers/clk/clk-stm32mp1.c')
| -rw-r--r-- | drivers/clk/clk-stm32mp1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c index b3a6ec4d9e9e..f1d5967b4b39 100644 --- a/drivers/clk/clk-stm32mp1.c +++ b/drivers/clk/clk-stm32mp1.c @@ -260,6 +260,10 @@ static const char * const mco2_src[] = { "ck_mpu", "ck_axi", "ck_mcu", "pll4_p", "ck_hse", "ck_hsi" }; +static const char * const ck_trace_src[] = { + "ck_axi" +}; + static const struct clk_div_table axi_div_table[] = { { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 }, { 4, 4 }, { 5, 4 }, { 6, 4 }, { 7, 4 }, @@ -280,6 +284,12 @@ static const struct clk_div_table apb_div_table[] = { { 0 }, }; +static const struct clk_div_table ck_trace_div_table[] = { + { 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 8 }, + { 4, 16 }, { 5, 16 }, { 6, 16 }, { 7, 16 }, + { 0 }, +}; + #define MAX_MUX_CLK 2 struct stm32_mmux { @@ -1980,6 +1990,18 @@ static const struct clock_config stm32mp1_clock_cfg[] = { _GATE(RCC_MCO2CFGR, 12, 0), _MUX(RCC_MCO2CFGR, 0, 3, 0), _DIV(RCC_MCO2CFGR, 4, 4, 0, NULL)), + + /* Debug clocks */ + FIXED_FACTOR(NO_ID, "ck_axi_div2", "ck_axi", 0, 1, 2), + + GATE(DBG, "ck_apb_dbg", "ck_axi_div2", 0, RCC_DBGCFGR, 8, 0), + + GATE(CK_DBG, "ck_sys_dbg", "ck_axi", 0, RCC_DBGCFGR, 8, 0), + + COMPOSITE(CK_TRACE, "ck_trace", ck_trace_src, CLK_OPS_PARENT_ENABLE, + _GATE(RCC_DBGCFGR, 9, 0), + _NO_MUX, + _DIV(RCC_DBGCFGR, 0, 3, 0, ck_trace_div_table)), }; struct stm32_clock_match_data { |