diff options
| author | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2012-11-17 15:22:29 +0100 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2012-11-20 14:44:00 +0100 |
| commit | c4c34d608482b48c1c007fecea5a7a5c65168fa2 (patch) | |
| tree | 3da57b6fd49826983b81f8a34d9eb9d49c4e169a /drivers/clk | |
| parent | clk: mvebu: add clock gating control provider for DT (diff) | |
| download | linux-c4c34d608482b48c1c007fecea5a7a5c65168fa2.tar.xz linux-c4c34d608482b48c1c007fecea5a7a5c65168fa2.zip | |
clk: mvebu: armada 370/XP add clock gating control provider for DT
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/mvebu/clk-gating-ctrl.c | 74 |
1 files changed, 73 insertions, 1 deletions
diff --git a/drivers/clk/mvebu/clk-gating-ctrl.c b/drivers/clk/mvebu/clk-gating-ctrl.c index fa69f87c5797..c6d3c263b070 100644 --- a/drivers/clk/mvebu/clk-gating-ctrl.c +++ b/drivers/clk/mvebu/clk-gating-ctrl.c @@ -88,10 +88,21 @@ static void __init mvebu_clk_gating_setup( } for (n = 0; n < ctrl->num_gates; n++) { + u8 flags = 0; const char *parent = (descr[n].parent) ? descr[n].parent : default_parent; + + /* + * On Armada 370, the DDR clock is a special case: it + * isn't taken by any driver, but should anyway be + * kept enabled, so we mark it as IGNORE_UNUSED for + * now. + */ + if (!strcmp(descr[n].name, "ddr")) + flags |= CLK_IGNORE_UNUSED; + ctrl->gates[n] = clk_register_gate(NULL, descr[n].name, parent, - 0, base, descr[n].bit_idx, 0, &ctrl->lock); + flags, base, descr[n].bit_idx, 0, &ctrl->lock); WARN_ON(IS_ERR(ctrl->gates[n])); } of_clk_add_provider(np, mvebu_clk_gating_get_src, ctrl); @@ -101,6 +112,53 @@ static void __init mvebu_clk_gating_setup( * SoC specific clock gating control */ +#ifdef CONFIG_MACH_ARMADA_370 +static const struct mvebu_soc_descr __initconst armada_370_gating_descr[] = { + { "audio", NULL, 0 }, + { "pex0_en", NULL, 1 }, + { "pex1_en", NULL, 2 }, + { "ge1", NULL, 3 }, + { "ge0", NULL, 4 }, + { "pex0", NULL, 5 }, + { "pex1", NULL, 9 }, + { "sata0", NULL, 15 }, + { "sdio", NULL, 17 }, + { "tdm", NULL, 25 }, + { "ddr", NULL, 28 }, + { "sata1", NULL, 30 }, + { } +}; +#endif + +#ifdef CONFIG_MACH_ARMADA_XP +static const struct mvebu_soc_descr __initconst armada_xp_gating_descr[] = { + { "audio", NULL, 0 }, + { "ge3", NULL, 1 }, + { "ge2", NULL, 2 }, + { "ge1", NULL, 3 }, + { "ge0", NULL, 4 }, + { "pex0", NULL, 5 }, + { "pex1", NULL, 6 }, + { "pex2", NULL, 7 }, + { "pex3", NULL, 8 }, + { "bp", NULL, 13 }, + { "sata0lnk", NULL, 14 }, + { "sata0", "sata0lnk", 15 }, + { "lcd", NULL, 16 }, + { "sdio", NULL, 17 }, + { "usb0", NULL, 18 }, + { "usb1", NULL, 19 }, + { "usb2", NULL, 20 }, + { "xor0", NULL, 22 }, + { "crypto", NULL, 23 }, + { "tdm", NULL, 25 }, + { "xor1", NULL, 28 }, + { "sata1lnk", NULL, 29 }, + { "sata1", "sata1lnk", 30 }, + { } +}; +#endif + #ifdef CONFIG_ARCH_DOVE static const struct mvebu_soc_descr __initconst dove_gating_descr[] = { { "usb0", NULL, 0 }, @@ -147,6 +205,20 @@ static const struct mvebu_soc_descr __initconst kirkwood_gating_descr[] = { #endif static const __initdata struct of_device_id clk_gating_match[] = { +#ifdef CONFIG_MACH_ARMADA_370 + { + .compatible = "marvell,armada-370-gating-clock", + .data = armada_370_gating_descr, + }, +#endif + +#ifdef CONFIG_MACH_ARMADA_XP + { + .compatible = "marvell,armada-xp-gating-clock", + .data = armada_xp_gating_descr, + }, +#endif + #ifdef CONFIG_ARCH_DOVE { .compatible = "marvell,dove-gating-clock", |