Allows to make relationship between DT and driver
more explicit and avoids duplication.
Signed-off-by: Lucas Stach <dev@xxxxxxxxxx>
---
drivers/clk/tegra/clk-tegra20.c | 168 +++++++++++++++++++---------------------
1 file changed, 80 insertions(+), 88 deletions(-)
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index cfb719f..ea39f46 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -19,6 +19,7 @@
#include <common.h>
#include <init.h>
#include <io.h>
+#include <dt-bindings/clock/tegra20-car.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/err.h>
@@ -29,23 +30,7 @@
static void __iomem *car_base;
-enum tegra20_clks {
- cpu, ac97 = 3, rtc, timer, uarta, uartb, gpio, sdmmc2, i2s1 = 11, i2c1,
- ndflash, sdmmc1, sdmmc4, twc, pwm, i2s2, epp, gr2d = 21, usbd, isp,
- gr3d, ide, disp2, disp1, host1x, vcp, cache2 = 31, mem, ahbdma, apbdma,
- kbc = 36, stat_mon, pmc, fuse, kfuse, sbc1, nor, spi, sbc2, xio, sbc3,
- dvc, dsi, mipi = 50, hdmi, csi, tvdac, i2c2, uartc, emc = 57, usb2,
- usb3, mpe, vde, bsea, bsev, speedo, uartd, uarte, i2c3, sbc4, sdmmc3,
- pex, owr, afi, csite, pcie_xclk, avpucq = 75, la, irama = 84, iramb,
- iramc, iramd, cram2, audio_2x, clk_d, csus = 92, cdev2, cdev1,
- vfir = 96, spdif_in, spdif_out, vi, vi_sensor, tvo, cve,
- osc, clk_32k, clk_m, sclk, cclk, hclk, pclk, blink, pll_a, pll_a_out0,
- pll_c, pll_c_out1, pll_d, pll_d_out0, pll_e, pll_m, pll_m_out1,
- pll_p, pll_p_out1, pll_p_out2, pll_p_out3, pll_p_out4, pll_u,
- pll_x, audio, pll_ref, twd, clk_max,
-};
-
-static struct clk *clks[clk_max];
+static struct clk *clks[TEGRA20_CLK_CLK_MAX];
static struct clk_onecell_data clk_data;
static unsigned int get_pll_ref_div(void)
@@ -58,11 +43,11 @@ static unsigned int get_pll_ref_div(void)
static void tegra20_osc_clk_init(void)
{
- clks[clk_m] = clk_fixed("clk_m", tegra_get_osc_clock());
- clks[clk_32k] = clk_fixed("clk_32k", 32768);
+ clks[TEGRA20_CLK_CLK_M] = clk_fixed("clk_m", tegra_get_osc_clock());
+ clks[TEGRA20_CLK_CLK_32K] = clk_fixed("clk_32k", 32768);
- clks[pll_ref] = clk_fixed_factor("pll_ref", "clk_m", 1,
- get_pll_ref_div(), 0);
+ clks[TEGRA20_CLK_PLL_REF] = clk_fixed_factor("pll_ref", "clk_m", 1,
+ get_pll_ref_div(), 0);
}
/* PLL frequency tables */
@@ -228,50 +213,52 @@ static struct tegra_clk_pll_params pll_u_params = {
static void tegra20_pll_init(void)
{
/* PLLC */
- clks[pll_c] = tegra_clk_register_pll("pll_c", "pll_ref", car_base,
- 0, 0, &pll_c_params, TEGRA_PLL_HAS_CPCON,
+ clks[TEGRA20_CLK_PLL_C] = tegra_clk_register_pll("pll_c", "pll_ref",
+ car_base, 0, 0, &pll_c_params, TEGRA_PLL_HAS_CPCON,
pll_c_freq_table);
- clks[pll_c_out1] = tegra_clk_register_pll_out("pll_c_out1", "pll_c",
- car_base + CRC_PLLC_OUT, 0, TEGRA_DIVIDER_ROUND_UP);
+ clks[TEGRA20_CLK_PLL_C_OUT1] = tegra_clk_register_pll_out("pll_c_out1",
+ "pll_c", car_base + CRC_PLLC_OUT, 0,
+ TEGRA_DIVIDER_ROUND_UP);
/* PLLP */
- clks[pll_p] = tegra_clk_register_pll("pll_p", "pll_ref", car_base,
- 0, 216000000, &pll_p_params, TEGRA_PLL_FIXED |
+ clks[TEGRA20_CLK_PLL_P] = tegra_clk_register_pll("pll_p", "pll_ref",
+ car_base, 0, 216000000, &pll_p_params, TEGRA_PLL_FIXED |
TEGRA_PLL_HAS_CPCON, pll_p_freq_table);
- clks[pll_p_out1] = tegra_clk_register_pll_out("pll_p_out1", "pll_p",
- car_base + CRC_PLLP_OUTA, 0,
+ clks[TEGRA20_CLK_PLL_P_OUT1] = tegra_clk_register_pll_out("pll_p_out1",
+ "pll_p", car_base + CRC_PLLP_OUTA, 0,
TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP);
- clks[pll_p_out2] = tegra_clk_register_pll_out("pll_p_out2", "pll_p",
- car_base + CRC_PLLP_OUTA, 16,
+ clks[TEGRA20_CLK_PLL_P_OUT2] = tegra_clk_register_pll_out("pll_p_out2",
+ "pll_p", car_base + CRC_PLLP_OUTA, 16,
TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP);
- clks[pll_p_out3] = tegra_clk_register_pll_out("pll_p_out3", "pll_p",
- car_base + CRC_PLLP_OUTB, 0,
+ clks[TEGRA20_CLK_PLL_P_OUT3] = tegra_clk_register_pll_out("pll_p_out3",
+ "pll_p", car_base + CRC_PLLP_OUTB, 0,
TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP);
- clks[pll_p_out4] = tegra_clk_register_pll_out("pll_p_out4", "pll_p",
- car_base + CRC_PLLP_OUTB, 16,
+ clks[TEGRA20_CLK_PLL_P_OUT4] = tegra_clk_register_pll_out("pll_p_out4",
+ "pll_p", car_base + CRC_PLLP_OUTB, 16,
TEGRA_DIVIDER_FIXED | TEGRA_DIVIDER_ROUND_UP);
/* PLLM */
- clks[pll_m] = tegra_clk_register_pll("pll_m", "pll_ref", car_base,
- 0, 0, &pll_m_params, TEGRA_PLL_HAS_CPCON,
+ clks[TEGRA20_CLK_PLL_M] = tegra_clk_register_pll("pll_m", "pll_ref",
+ car_base, 0, 0, &pll_m_params, TEGRA_PLL_HAS_CPCON,
pll_m_freq_table);
- clks[pll_m_out1] = tegra_clk_register_pll_out("pll_m_out1", "pll_m",
- car_base + CRC_PLLM_OUT, 0, TEGRA_DIVIDER_ROUND_UP);
+ clks[TEGRA20_CLK_PLL_M_OUT1] = tegra_clk_register_pll_out("pll_m_out1",
+ "pll_m", car_base + CRC_PLLM_OUT, 0,
+ TEGRA_DIVIDER_ROUND_UP);
/* PLLX */
- clks[pll_x] = tegra_clk_register_pll("pll_x", "pll_ref", car_base,
- 0, 0, &pll_x_params, TEGRA_PLL_HAS_CPCON,
+ clks[TEGRA20_CLK_PLL_X] = tegra_clk_register_pll("pll_x", "pll_ref",
+ car_base, 0, 0, &pll_x_params, TEGRA_PLL_HAS_CPCON,
pll_x_freq_table);
/* PLLU */
- clks[pll_u] = tegra_clk_register_pll("pll_u", "pll_ref", car_base,
- 0, 0, &pll_u_params, TEGRA_PLLU |
+ clks[TEGRA20_CLK_PLL_U] = tegra_clk_register_pll("pll_u", "pll_ref",
+ car_base, 0, 0, &pll_u_params, TEGRA_PLLU |
TEGRA_PLL_HAS_CPCON, pll_u_freq_table);
}
@@ -280,55 +267,60 @@ static const char *mux_pllpcm_clkm[] = {"pll_p", "pll_c", "pll_m", "clk_m"};
static void tegra20_periph_init(void)
{
/* peripheral clocks without a divider */
- clks[uarta] = tegra_clk_register_periph_nodiv("uarta", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_UARTA, uarta, TEGRA_PERIPH_ON_APB);
- clks[uartb] = tegra_clk_register_periph_nodiv("uartb", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_UARTB, uartb, TEGRA_PERIPH_ON_APB);
- clks[uartc] = tegra_clk_register_periph_nodiv("uartc", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_UARTC, uartc, TEGRA_PERIPH_ON_APB);
- clks[uartd] = tegra_clk_register_periph_nodiv("uartd", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_UARTD, uartd, TEGRA_PERIPH_ON_APB);
- clks[uarte] = tegra_clk_register_periph_nodiv("uarte", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_UARTE, uarte, TEGRA_PERIPH_ON_APB);
+ clks[TEGRA20_CLK_UARTA] = tegra_clk_register_periph_nodiv("uarta",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_UARTA, TEGRA20_CLK_UARTA,
+ TEGRA_PERIPH_ON_APB);
+ clks[TEGRA20_CLK_UARTB] = tegra_clk_register_periph_nodiv("uartb",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_UARTB, 7,
+ TEGRA_PERIPH_ON_APB);
+ clks[TEGRA20_CLK_UARTC] = tegra_clk_register_periph_nodiv("uartc",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_UARTC, TEGRA20_CLK_UARTC,
+ TEGRA_PERIPH_ON_APB);
+ clks[TEGRA20_CLK_UARTD] = tegra_clk_register_periph_nodiv("uartd",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_UARTD, TEGRA20_CLK_UARTD,
+ TEGRA_PERIPH_ON_APB);
+ clks[TEGRA20_CLK_UARTE] = tegra_clk_register_periph_nodiv("uarte",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_UARTE, TEGRA20_CLK_UARTE,
+ TEGRA_PERIPH_ON_APB);
/* peripheral clocks with a divider */
- clks[sdmmc1] = tegra_clk_register_periph("sdmmc1", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_SDMMC1, sdmmc1, 1);
- clks[sdmmc2] = tegra_clk_register_periph("sdmmc2", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_SDMMC2, sdmmc2, 1);
- clks[sdmmc3] = tegra_clk_register_periph("sdmmc3", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_SDMMC3, sdmmc3, 1);
- clks[sdmmc4] = tegra_clk_register_periph("sdmmc4", mux_pllpcm_clkm,
- ARRAY_SIZE(mux_pllpcm_clkm), car_base,
- CRC_CLK_SOURCE_SDMMC4, sdmmc4, 1);
+ clks[TEGRA20_CLK_SDMMC1] = tegra_clk_register_periph("sdmmc1",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_SDMMC1, TEGRA20_CLK_SDMMC1, 1);
+ clks[TEGRA20_CLK_SDMMC2] = tegra_clk_register_periph("sdmmc2",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_SDMMC2, TEGRA20_CLK_SDMMC2, 1);
+ clks[TEGRA20_CLK_SDMMC3] = tegra_clk_register_periph("sdmmc3",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_SDMMC3, TEGRA20_CLK_SDMMC3, 1);
+ clks[TEGRA20_CLK_SDMMC4] = tegra_clk_register_periph("sdmmc4",
+ mux_pllpcm_clkm, ARRAY_SIZE(mux_pllpcm_clkm), car_base,
+ CRC_CLK_SOURCE_SDMMC4, TEGRA20_CLK_SDMMC4, 1);
}
static struct tegra_clk_init_table init_table[] = {
- {pll_p, clk_max, 216000000, 1},
- {pll_p_out1, clk_max, 28800000, 1},
- {pll_p_out2, clk_max, 48000000, 1},
- {pll_p_out3, clk_max, 72000000, 1},
- {pll_p_out4, clk_max, 24000000, 1},
- {pll_c, clk_max, 600000000, 1},
- {pll_c_out1, clk_max, 120000000, 1},
- {uarta, pll_p, 0, 1},
- {uartb, pll_p, 0, 1},
- {uartc, pll_p, 0, 1},
- {uartd, pll_p, 0, 1},
- {uarte, pll_p, 0, 1},
- {sdmmc1, pll_p, 48000000, 0},
- {sdmmc2, pll_p, 48000000, 0},
- {sdmmc3, pll_p, 48000000, 0},
- {sdmmc4, pll_p, 48000000, 0},
- {clk_max, clk_max, 0, 0}, /* sentinel */
+ {TEGRA20_CLK_PLL_P, TEGRA20_CLK_CLK_MAX, 216000000, 1},
+ {TEGRA20_CLK_PLL_P_OUT1, TEGRA20_CLK_CLK_MAX, 28800000, 1},
+ {TEGRA20_CLK_PLL_P_OUT2, TEGRA20_CLK_CLK_MAX, 48000000, 1},
+ {TEGRA20_CLK_PLL_P_OUT3, TEGRA20_CLK_CLK_MAX, 72000000, 1},
+ {TEGRA20_CLK_PLL_P_OUT4, TEGRA20_CLK_CLK_MAX, 24000000, 1},
+ {TEGRA20_CLK_PLL_C, TEGRA20_CLK_CLK_MAX, 600000000, 1},
+ {TEGRA20_CLK_PLL_C_OUT1, TEGRA20_CLK_CLK_MAX, 120000000, 1},
+ {TEGRA20_CLK_UARTA, TEGRA20_CLK_PLL_P, 0, 1},
+ {TEGRA20_CLK_UARTB, TEGRA20_CLK_PLL_P, 0, 1},
+ {TEGRA20_CLK_UARTC, TEGRA20_CLK_PLL_P, 0, 1},
+ {TEGRA20_CLK_UARTD, TEGRA20_CLK_PLL_P, 0, 1},
+ {TEGRA20_CLK_UARTE, TEGRA20_CLK_PLL_P, 0, 1},
+ {TEGRA20_CLK_SDMMC1, TEGRA20_CLK_PLL_P, 48000000, 0},
+ {TEGRA20_CLK_SDMMC2, TEGRA20_CLK_PLL_P, 48000000, 0},
+ {TEGRA20_CLK_SDMMC3, TEGRA20_CLK_PLL_P, 48000000, 0},
+ {TEGRA20_CLK_SDMMC4, TEGRA20_CLK_PLL_P, 48000000, 0},
+ {TEGRA20_CLK_CLK_MAX, TEGRA20_CLK_CLK_MAX, 0, 0}, /* sentinel */
};
static int tegra20_car_probe(struct device_d *dev)
@@ -341,7 +333,7 @@ static int tegra20_car_probe(struct device_d *dev)
tegra20_pll_init();
tegra20_periph_init();
- tegra_init_from_table(init_table, clks, clk_max);
+ tegra_init_from_table(init_table, clks, TEGRA20_CLK_CLK_MAX);
/* speed up system bus */
writel(CRC_SCLK_BURST_POLICY_SYS_STATE_RUN <<
--
1.9.0
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