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clk: tegra: make sdmmc2 and sdmmc4 as sdmmc clocks 

These clocks have low jitter paths to certain parents. To model these
correctly, use the sdmmc mux divider clock type.

Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Peter De-Schrijver 2018-07-12 14:53:02 +03:00 committed by Stephen Boyd
parent 633e79650b
commit c76a69e477
3 changed files with 12 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/clk/tegra/clk-id.h
View File

@ -227,13 +227,11 @@ enum clk_id {
tegra_clk_sdmmc1_9,
tegra_clk_sdmmc2,
tegra_clk_sdmmc2_8,
tegra_clk_sdmmc2_9,
tegra_clk_sdmmc3,
tegra_clk_sdmmc3_8,
tegra_clk_sdmmc3_9,
tegra_clk_sdmmc4,
tegra_clk_sdmmc4_8,
tegra_clk_sdmmc4_9,
tegra_clk_se,
tegra_clk_soc_therm,
tegra_clk_soc_therm_8,

11
drivers/clk/tegra/clk-tegra-periph.c
View File

@ -451,15 +451,6 @@ static u32 mux_pllp_pllc4_out2_pllc4_out1_clkm_pllc4_out0_idx[] = {
[0] = 0, [1] = 3, [2] = 4, [3] = 6, [4] = 7,
};
static const char *mux_pllp_clkm_pllc4_out2_out1_out0_lj[] = {
"pll_p",
"pll_c4_out2", "pll_c4_out0", /* LJ input */
"pll_c4_out2", "pll_c4_out1",
"pll_c4_out1", /* LJ input */
"clk_m", "pll_c4_out0"
};
#define mux_pllp_clkm_pllc4_out2_out1_out0_lj_idx NULL
static const char *mux_pllp_pllc2_c_c3_clkm[] = {
"pll_p", "pll_c2", "pll_c", "pll_c3", "clk_m"
};
@ -686,9 +677,7 @@ static struct tegra_periph_init_data periph_clks[] = {
MUX("sdmmc3", mux_pllp_pllc_pllm_clkm, CLK_SOURCE_SDMMC3, 69, TEGRA_PERIPH_ON_APB, tegra_clk_sdmmc3),
MUX("sdmmc4", mux_pllp_pllc_pllm_clkm, CLK_SOURCE_SDMMC4, 15, TEGRA_PERIPH_ON_APB, tegra_clk_sdmmc4),
MUX8("sdmmc1", mux_pllp_pllc4_out2_pllc4_out1_clkm_pllc4_out0, CLK_SOURCE_SDMMC1, 14, TEGRA_PERIPH_ON_APB, tegra_clk_sdmmc1_9),
MUX8("sdmmc2", mux_pllp_clkm_pllc4_out2_out1_out0_lj, CLK_SOURCE_SDMMC2, 9, TEGRA_PERIPH_ON_APB, tegra_clk_sdmmc2_9),
MUX8("sdmmc3", mux_pllp_pllc4_out2_pllc4_out1_clkm_pllc4_out0, CLK_SOURCE_SDMMC3, 69, TEGRA_PERIPH_ON_APB, tegra_clk_sdmmc3_9),
MUX8("sdmmc4", mux_pllp_clkm_pllc4_out2_out1_out0_lj, CLK_SOURCE_SDMMC4, 15, TEGRA_PERIPH_ON_APB, tegra_clk_sdmmc4_9),
MUX("la", mux_pllp_pllc_pllm_clkm, CLK_SOURCE_LA, 76, TEGRA_PERIPH_ON_APB, tegra_clk_la),
MUX("trace", mux_pllp_pllc_pllm_clkm, CLK_SOURCE_TRACE, 77, TEGRA_PERIPH_ON_APB, tegra_clk_trace),
MUX("owr", mux_pllp_pllc_pllm_clkm, CLK_SOURCE_OWR, 71, TEGRA_PERIPH_ON_APB, tegra_clk_owr),

14
drivers/clk/tegra/clk-tegra210.c
View File

@ -44,6 +44,8 @@
#define CLK_SOURCE_EMC 0x19c
#define CLK_SOURCE_SOR1 0x410
#define CLK_SOURCE_LA 0x1f8
#define CLK_SOURCE_SDMMC2 0x154
#define CLK_SOURCE_SDMMC4 0x164
#define PLLC_BASE 0x80
#define PLLC_OUT 0x84
@ -2286,11 +2288,9 @@ static struct tegra_clk tegra210_clks[tegra_clk_max] __initdata = {
[tegra_clk_rtc] = { .dt_id = TEGRA210_CLK_RTC, .present = true },
[tegra_clk_timer] = { .dt_id = TEGRA210_CLK_TIMER, .present = true },
[tegra_clk_uarta_8] = { .dt_id = TEGRA210_CLK_UARTA, .present = true },
[tegra_clk_sdmmc2_9] = { .dt_id = TEGRA210_CLK_SDMMC2, .present = true },
[tegra_clk_i2s1] = { .dt_id = TEGRA210_CLK_I2S1, .present = true },
[tegra_clk_i2c1] = { .dt_id = TEGRA210_CLK_I2C1, .present = true },
[tegra_clk_sdmmc1_9] = { .dt_id = TEGRA210_CLK_SDMMC1, .present = true },
[tegra_clk_sdmmc4_9] = { .dt_id = TEGRA210_CLK_SDMMC4, .present = true },
[tegra_clk_pwm] = { .dt_id = TEGRA210_CLK_PWM, .present = true },
[tegra_clk_i2s2] = { .dt_id = TEGRA210_CLK_I2S2, .present = true },
[tegra_clk_usbd] = { .dt_id = TEGRA210_CLK_USBD, .present = true },
@ -3030,6 +3030,16 @@ static __init void tegra210_periph_clk_init(void __iomem *clk_base,
0, NULL);
clks[TEGRA210_CLK_ACLK] = clk;
clk = tegra_clk_register_sdmmc_mux_div("sdmmc2", clk_base,
CLK_SOURCE_SDMMC2, 9,
TEGRA_DIVIDER_ROUND_UP, 0, NULL);
clks[TEGRA210_CLK_SDMMC2] = clk;
clk = tegra_clk_register_sdmmc_mux_div("sdmmc4", clk_base,
CLK_SOURCE_SDMMC4, 15,
TEGRA_DIVIDER_ROUND_UP, 0, NULL);
clks[TEGRA210_CLK_SDMMC4] = clk;
for (i = 0; i < ARRAY_SIZE(tegra210_periph); i++) {
struct tegra_periph_init_data *init = &tegra210_periph[i];
struct clk **clkp;