diff options
| author | Gabriel Fernandez <gabriel.fernandez@st.com> | 2018-03-08 17:54:03 +0100 |
|---|---|---|
| committer | Michael Turquette <mturquette@baylibre.com> | 2018-03-11 23:40:33 +0100 |
| commit | 2c87c9d33117446dab774a7e1b23806802f95c98 (patch) | |
| tree | 847d00a9136acdfe8b46a0564f685982a2aab53f /drivers/clk/clk-stm32mp1.c | |
| parent | clk: stm32mp1: add Peripheral & Kernel Clocks (diff) | |
| download | linux-2c87c9d33117446dab774a7e1b23806802f95c98.tar.xz linux-2c87c9d33117446dab774a7e1b23806802f95c98.zip | |
clk: stm32mp1: add RTC clock
This patch adds the RTC clock.
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 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/clk/clk-stm32mp1.c b/drivers/clk/clk-stm32mp1.c index b5379a224183..51e3e76b8fa5 100644 --- a/drivers/clk/clk-stm32mp1.c +++ b/drivers/clk/clk-stm32mp1.c @@ -248,6 +248,10 @@ static const char * const dsi_src[] = { "ck_dsi_phy", "pll4_p" }; +static const char * const rtc_src[] = { + "off", "ck_lse", "ck_lsi", "ck_hse_rtc" +}; + 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 }, @@ -1945,6 +1949,17 @@ static const struct clock_config stm32mp1_clock_cfg[] = { _NO_GATE, _MMUX(M_ETHCK), _DIV(RCC_ETHCKSELR, 4, 4, CLK_DIVIDER_ALLOW_ZERO, NULL)), + + /* RTC clock */ + DIV(NO_ID, "ck_hse_rtc", "ck_hse", 0, RCC_RTCDIVR, 0, 7, + CLK_DIVIDER_ALLOW_ZERO), + + COMPOSITE(RTC, "ck_rtc", rtc_src, CLK_OPS_PARENT_ENABLE | + CLK_SET_RATE_PARENT, + _GATE(RCC_BDCR, 20, 0), + _MUX(RCC_BDCR, 16, 2, 0), + _NO_DIV), + }; struct stm32_clock_match_data { |