diff options
Diffstat (limited to 'drivers/clk/ux500/u8500_of_clk.c')
| -rw-r--r-- | drivers/clk/ux500/u8500_of_clk.c | 165 |
1 files changed, 92 insertions, 73 deletions
diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c index e319ef912dc6..271c09644652 100644 --- a/drivers/clk/ux500/u8500_of_clk.c +++ b/drivers/clk/ux500/u8500_of_clk.c @@ -8,8 +8,7 @@ */ #include <linux/of.h> -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/of_address.h> #include <linux/clk-provider.h> #include <linux/mfd/dbx500-prcmu.h> #include <linux/platform_data/clk-ux500.h> @@ -54,14 +53,25 @@ static const struct of_device_id u8500_clk_of_match[] = { { }, }; -void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base) +/* CLKRST4 is missing making it hard to index things */ +enum clkrst_index { + CLKRST1_INDEX = 0, + CLKRST2_INDEX, + CLKRST3_INDEX, + CLKRST5_INDEX, + CLKRST6_INDEX, + CLKRST_MAX, +}; + +void u8500_clk_init(void) { struct prcmu_fw_version *fw_version; struct device_node *np = NULL; struct device_node *child = NULL; const char *sgaclk_parent = NULL; struct clk *clk, *rtc_clk, *twd_clk; + u32 bases[CLKRST_MAX]; + int i; if (of_have_populated_dt()) np = of_find_matching_node(NULL, u8500_clk_of_match); @@ -69,6 +79,15 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, pr_err("Either DT or U8500 Clock node not found\n"); return; } + for (i = 0; i < ARRAY_SIZE(bases); i++) { + struct resource r; + + if (of_address_to_resource(np, i, &r)) + /* Not much choice but to continue */ + pr_err("failed to get CLKRST %d base address\n", + i + 1); + bases[i] = r.start; + } /* Clock sources */ clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0, @@ -246,179 +265,179 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, */ /* PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", bases[CLKRST1_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 1, 0); - clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", bases[CLKRST1_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 1, 1); - clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", bases[CLKRST1_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 1, 2); - clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", bases[CLKRST1_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 1, 3); - clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", bases[CLKRST1_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 1, 4); - clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", bases[CLKRST1_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 1, 5); - clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", bases[CLKRST1_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 1, 6); - clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", bases[CLKRST1_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 1, 7); - clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", bases[CLKRST1_INDEX], BIT(8), 0); PRCC_PCLK_STORE(clk, 1, 8); - clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", bases[CLKRST1_INDEX], BIT(9), 0); PRCC_PCLK_STORE(clk, 1, 9); - clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", bases[CLKRST1_INDEX], BIT(10), 0); PRCC_PCLK_STORE(clk, 1, 10); - clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", bases[CLKRST1_INDEX], BIT(11), 0); PRCC_PCLK_STORE(clk, 1, 11); - clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", bases[CLKRST2_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 2, 0); - clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", bases[CLKRST2_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 2, 1); - clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", bases[CLKRST2_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 2, 2); - clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", bases[CLKRST2_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 2, 3); - clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", bases[CLKRST2_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 2, 4); - clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", bases[CLKRST2_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 2, 5); - clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", bases[CLKRST2_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 2, 6); - clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", bases[CLKRST2_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 2, 7); - clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", bases[CLKRST2_INDEX], BIT(8), 0); PRCC_PCLK_STORE(clk, 2, 8); - clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", bases[CLKRST2_INDEX], BIT(9), 0); PRCC_PCLK_STORE(clk, 2, 9); - clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", bases[CLKRST2_INDEX], BIT(10), 0); PRCC_PCLK_STORE(clk, 2, 10); - clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", bases[CLKRST2_INDEX], BIT(11), 0); PRCC_PCLK_STORE(clk, 2, 11); - clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", bases[CLKRST2_INDEX], BIT(12), 0); PRCC_PCLK_STORE(clk, 2, 12); - clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", bases[CLKRST3_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 3, 0); - clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", bases[CLKRST3_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 3, 1); - clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", bases[CLKRST3_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 3, 2); - clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", bases[CLKRST3_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 3, 3); - clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", bases[CLKRST3_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 3, 4); - clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", bases[CLKRST3_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 3, 5); - clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", bases[CLKRST3_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 3, 6); - clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", bases[CLKRST3_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 3, 7); - clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", bases[CLKRST3_INDEX], BIT(8), 0); PRCC_PCLK_STORE(clk, 3, 8); - clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base, + clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", bases[CLKRST5_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 5, 0); - clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base, + clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", bases[CLKRST5_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 5, 1); - clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", bases[CLKRST6_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 6, 0); - clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", bases[CLKRST6_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 6, 1); - clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", bases[CLKRST6_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 6, 2); - clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", bases[CLKRST6_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 6, 3); - clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", bases[CLKRST6_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 6, 4); - clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", bases[CLKRST6_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 6, 5); - clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", bases[CLKRST6_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 6, 6); - clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", bases[CLKRST6_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 6, 7); @@ -432,109 +451,109 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, /* Periph1 */ clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk", - clkrst1_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(0), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 0); clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk", - clkrst1_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(1), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 1); clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk", - clkrst1_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(2), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 2); clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", - clkrst1_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(3), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 3); clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", - clkrst1_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(4), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 4); clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk", - clkrst1_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(5), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 5); clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk", - clkrst1_base, BIT(6), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(6), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 6); clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", - clkrst1_base, BIT(8), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(8), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 8); clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", - clkrst1_base, BIT(9), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(9), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 9); clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", - clkrst1_base, BIT(10), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(10), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 10); /* Periph2 */ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", - clkrst2_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(0), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 0); clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk", - clkrst2_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(2), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 2); clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk", - clkrst2_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(3), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 3); clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk", - clkrst2_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(4), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 4); clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk", - clkrst2_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(5), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 5); /* Note that rate is received from parent. */ clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk", - clkrst2_base, BIT(6), + bases[CLKRST2_INDEX], BIT(6), CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); PRCC_KCLK_STORE(clk, 2, 6); clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk", - clkrst2_base, BIT(7), + bases[CLKRST2_INDEX], BIT(7), CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); PRCC_KCLK_STORE(clk, 2, 7); /* Periph3 */ clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk", - clkrst3_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(1), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 1); clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", - clkrst3_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(2), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 2); clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", - clkrst3_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(3), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 3); clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk", - clkrst3_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(4), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 4); clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k", - clkrst3_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(5), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 5); clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk", - clkrst3_base, BIT(6), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(6), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 6); clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk", - clkrst3_base, BIT(7), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(7), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 7); /* Periph6 */ clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk", - clkrst6_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST6_INDEX], BIT(0), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 6, 0); for_each_child_of_node(np, child) { |