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clk: gxbb: add MMC gate clocks, and expose for DT 

Add the SD/eMMC gate clocks and expose them for use by DT.

While at it, also explose FCLK_DIV2 since this is one of the input
clocks to the mux internal to each of the SD/eMMC blocks.

Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Kevin Hilman 2016-08-02 14:40:11 -07:00 committed by Stephen Boyd
parent 29b4817d40
commit 33608dcd01
3 changed files with 18 additions and 2 deletions
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9
drivers/clk/meson/gxbb.c
View File

@ -583,6 +583,9 @@ static MESON_GATE(sdio, HHI_GCLK_MPEG0, 17);
static MESON_GATE(abuf, HHI_GCLK_MPEG0, 18);
static MESON_GATE(hiu_iface, HHI_GCLK_MPEG0, 19);
static MESON_GATE(assist_misc, HHI_GCLK_MPEG0, 23);
static MESON_GATE(emmc_a, HHI_GCLK_MPEG0, 24);
static MESON_GATE(emmc_b, HHI_GCLK_MPEG0, 25);
static MESON_GATE(emmc_c, HHI_GCLK_MPEG0, 26);
static MESON_GATE(spi, HHI_GCLK_MPEG0, 30);
static MESON_GATE(i2s_spdif, HHI_GCLK_MPEG1, 2);
@ -748,6 +751,9 @@ static struct clk_hw_onecell_data gxbb_hw_onecell_data = {
[CLKID_AO_AHB_BUS] = &gxbb_ao_ahb_bus.hw,
[CLKID_AO_IFACE] = &gxbb_ao_iface.hw,
[CLKID_AO_I2C] = &gxbb_ao_i2c.hw,
[CLKID_SD_EMMC_A] = &gxbb_emmc_a.hw,
[CLKID_SD_EMMC_B] = &gxbb_emmc_b.hw,
[CLKID_SD_EMMC_C] = &gxbb_emmc_c.hw,
},
.num = NR_CLKS,
};
@ -847,6 +853,9 @@ static struct clk_gate *gxbb_clk_gates[] = {
&gxbb_ao_ahb_bus,
&gxbb_ao_iface,
&gxbb_ao_i2c,
&gxbb_emmc_a,
&gxbb_emmc_b,
&gxbb_emmc_c,
};
static int gxbb_clkc_probe(struct platform_device *pdev)

7
drivers/clk/meson/gxbb.h
View File

@ -172,7 +172,7 @@
/* CLKID_CPUCLK */
#define CLKID_HDMI_PLL 2
#define CLKID_FIXED_PLL 3
#define CLKID_FCLK_DIV2 4
/* CLKID_FCLK_DIV2 */
#define CLKID_FCLK_DIV3 5
#define CLKID_FCLK_DIV4 6
#define CLKID_FCLK_DIV5 7
@ -262,8 +262,11 @@
#define CLKID_AO_AHB_BUS 91
#define CLKID_AO_IFACE 92
#define CLKID_AO_I2C 93
/* CLKID_SD_EMMC_A */
/* CLKID_SD_EMMC_B */
/* CLKID_SD_EMMC_C */
#define NR_CLKS 94
#define NR_CLKS 97
/* include the CLKIDs that have been made part of the stable DT binding */
#include <dt-bindings/clock/gxbb-clkc.h>

4
include/dt-bindings/clock/gxbb-clkc.h
View File

@ -6,7 +6,11 @@
#define __GXBB_CLKC_H
#define CLKID_CPUCLK 1
#define CLKID_FCLK_DIV2 4
#define CLKID_CLK81 12
#define CLKID_ETH 36
#define CLKID_SD_EMMC_A 94
#define CLKID_SD_EMMC_B 95
#define CLKID_SD_EMMC_C 96
#endif /* __GXBB_CLKC_H */