diff options
author | Lukasz Majewski <lukma@denx.de> | 2020-02-24 16:55:25 +0300 |
---|---|---|
committer | Lukasz Majewski <lukma@denx.de> | 2020-08-24 12:03:26 +0300 |
commit | 8d540ccb1128bac033eac77be997d28a1236d9f4 (patch) | |
tree | 1de08b1533ed988e164b9a0e10a23069e21951e5 /drivers/clk | |
parent | d71fac847904af35ebf8c47c42ccf9ee442190b3 (diff) | |
download | u-boot-8d540ccb1128bac033eac77be997d28a1236d9f4.tar.xz |
clk: imx: Add support for pllv3 enet clock
This code has been ported from Linux kernel v5.5.5 (tag) and has been
adjusted to U-Boot's DM.
It adds support for correct recognition of IMX_PLLV3_ENET flag in the
clk-pllv3.c driver.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/imx/clk-pllv3.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c index b4a9d587e1..feacaee1c4 100644 --- a/drivers/clk/imx/clk-pllv3.c +++ b/drivers/clk/imx/clk-pllv3.c @@ -20,6 +20,7 @@ #define UBOOT_DM_CLK_IMX_PLLV3_SYS "imx_clk_pllv3_sys" #define UBOOT_DM_CLK_IMX_PLLV3_USB "imx_clk_pllv3_usb" #define UBOOT_DM_CLK_IMX_PLLV3_AV "imx_clk_pllv3_av" +#define UBOOT_DM_CLK_IMX_PLLV3_ENET "imx_clk_pllv3_enet" #define PLL_NUM_OFFSET 0x10 #define PLL_DENOM_OFFSET 0x20 @@ -36,6 +37,7 @@ struct clk_pllv3 { u32 enable_bit; u32 div_mask; u32 div_shift; + unsigned long ref_clock; }; #define to_clk_pllv3(_clk) container_of(_clk, struct clk_pllv3, clk) @@ -232,6 +234,19 @@ static const struct clk_ops clk_pllv3_av_ops = { .set_rate = clk_pllv3_av_set_rate, }; +static ulong clk_pllv3_enet_get_rate(struct clk *clk) +{ + struct clk_pllv3 *pll = to_clk_pllv3(clk); + + return pll->ref_clock; +} + +static const struct clk_ops clk_pllv3_enet_ops = { + .enable = clk_pllv3_generic_enable, + .disable = clk_pllv3_generic_disable, + .get_rate = clk_pllv3_enet_get_rate, +}; + struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name, const char *parent_name, void __iomem *base, u32 div_mask) @@ -269,6 +284,10 @@ struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name, pll->div_shift = 0; pll->powerup_set = false; break; + case IMX_PLLV3_ENET: + drv_name = UBOOT_DM_CLK_IMX_PLLV3_ENET; + pll->ref_clock = 500000000; + break; default: kfree(pll); return ERR_PTR(-ENOTSUPP); @@ -314,3 +333,9 @@ U_BOOT_DRIVER(clk_pllv3_av) = { .ops = &clk_pllv3_av_ops, .flags = DM_FLAG_PRE_RELOC, }; + +U_BOOT_DRIVER(clk_pllv3_enet) = { + .name = UBOOT_DM_CLK_IMX_PLLV3_ENET, + .id = UCLASS_CLK, + .ops = &clk_pllv3_enet_ops, +}; |