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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>
hifive-unleashed-5.1
Gabriel Fernandez 2018-03-08 17:54:03 +01:00 committed by Michael Turquette
parent 1f80590b6b
commit 2c87c9d331
1 changed files with 15 additions and 0 deletions
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15
drivers/clk/clk-stm32mp1.c
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@ -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 {