diff options
| author | Johan Jonker <jbx6244@gmail.com> | 2022-04-09 19:55:06 +0300 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2022-04-18 06:25:13 +0300 |
| commit | 516e216a788f62d6638e69632d97bc5798d29f1c (patch) | |
| tree | b4e8ed6089d6cbf5beac9d1f9e8546b5bae3bf83 /drivers | |
| parent | 30a7b824aa5a2774bf320c20f1d460aea2a56db0 (diff) | |
| download | u-boot-516e216a788f62d6638e69632d97bc5798d29f1c.tar.xz | |
rockchip: timer: add OF_PLATDATA support for dw-apb-timer
The Rockchip rk3066 SoC has 3 dw-apb-timer nodes.
U-boot is compiled with OF_PLATDATA TPL/SPL options,
so add OF_PLATDATA support for the dw-apb-timer.
Also change driver name to be able to compile with
U-boot scripts. No reset OF_PLATDATA support was added,
because the rk3066 nodes don't need/have them.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/timer/dw-apb-timer.c | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/drivers/timer/dw-apb-timer.c b/drivers/timer/dw-apb-timer.c index 9aed5dd217..f722697934 100644 --- a/drivers/timer/dw-apb-timer.c +++ b/drivers/timer/dw-apb-timer.c @@ -8,10 +8,12 @@ #include <common.h> #include <dm.h> #include <clk.h> +#include <dt-structs.h> #include <malloc.h> #include <reset.h> #include <timer.h> #include <dm/device_compat.h> +#include <linux/kconfig.h> #include <asm/io.h> #include <asm/arch/timer.h> @@ -25,6 +27,12 @@ struct dw_apb_timer_priv { struct reset_ctl_bulk resets; }; +struct dw_apb_timer_plat { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_snps_dw_apb_timer dtplat; +#endif +}; + static u64 dw_apb_timer_get_count(struct udevice *dev) { struct dw_apb_timer_priv *priv = dev_get_priv(dev); @@ -43,20 +51,33 @@ static int dw_apb_timer_probe(struct udevice *dev) struct dw_apb_timer_priv *priv = dev_get_priv(dev); struct clk clk; int ret; +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dw_apb_timer_plat *plat = dev_get_plat(dev); + struct dtd_snps_dw_apb_timer *dtplat = &plat->dtplat; - ret = reset_get_bulk(dev, &priv->resets); - if (ret) - dev_warn(dev, "Can't get reset: %d\n", ret); - else - reset_deassert_bulk(&priv->resets); + priv->regs = dtplat->reg[0]; - ret = clk_get_by_index(dev, 0, &clk); - if (ret) + ret = clk_get_by_phandle(dev, &dtplat->clocks[0], &clk); + if (ret < 0) return ret; - uc_priv->clock_rate = clk_get_rate(&clk); + uc_priv->clock_rate = dtplat->clock_frequency; +#endif + if (CONFIG_IS_ENABLED(OF_REAL)) { + ret = reset_get_bulk(dev, &priv->resets); + if (ret) + dev_warn(dev, "Can't get reset: %d\n", ret); + else + reset_deassert_bulk(&priv->resets); + + ret = clk_get_by_index(dev, 0, &clk); + if (ret) + return ret; - clk_free(&clk); + uc_priv->clock_rate = clk_get_rate(&clk); + + clk_free(&clk); + } /* init timer */ writel(0xffffffff, priv->regs + DW_APB_LOAD_VAL); @@ -68,9 +89,11 @@ static int dw_apb_timer_probe(struct udevice *dev) static int dw_apb_timer_of_to_plat(struct udevice *dev) { - struct dw_apb_timer_priv *priv = dev_get_priv(dev); + if (CONFIG_IS_ENABLED(OF_REAL)) { + struct dw_apb_timer_priv *priv = dev_get_priv(dev); - priv->regs = dev_read_addr(dev); + priv->regs = dev_read_addr(dev); + } return 0; } @@ -91,8 +114,8 @@ static const struct udevice_id dw_apb_timer_ids[] = { {} }; -U_BOOT_DRIVER(dw_apb_timer) = { - .name = "dw_apb_timer", +U_BOOT_DRIVER(snps_dw_apb_timer) = { + .name = "snps_dw_apb_timer", .id = UCLASS_TIMER, .ops = &dw_apb_timer_ops, .probe = dw_apb_timer_probe, @@ -100,4 +123,5 @@ U_BOOT_DRIVER(dw_apb_timer) = { .of_to_plat = dw_apb_timer_of_to_plat, .remove = dw_apb_timer_remove, .priv_auto = sizeof(struct dw_apb_timer_priv), + .plat_auto = sizeof(struct dw_apb_timer_plat), }; |