diff options
author | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
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committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/arch/arm/mach-ipq40xx/clock-ipq4019.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/arch/arm/mach-ipq40xx/clock-ipq4019.c')
-rw-r--r-- | roms/u-boot/arch/arm/mach-ipq40xx/clock-ipq4019.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-ipq40xx/clock-ipq4019.c b/roms/u-boot/arch/arm/mach-ipq40xx/clock-ipq4019.c new file mode 100644 index 000000000..c1d5c4ecd --- /dev/null +++ b/roms/u-boot/arch/arm/mach-ipq40xx/clock-ipq4019.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Clock drivers for Qualcomm IPQ40xx + * + * Copyright (c) 2020 Sartura Ltd. + * + * Author: Robert Marko <robert.marko@sartura.hr> + * + */ + +#include <clk-uclass.h> +#include <common.h> +#include <dm.h> +#include <errno.h> + +#include <dt-bindings/clock/qcom,ipq4019-gcc.h> + +struct msm_clk_priv { + phys_addr_t base; +}; + +ulong msm_set_rate(struct clk *clk, ulong rate) +{ + switch (clk->id) { + case GCC_BLSP1_UART1_APPS_CLK: /*UART1*/ + /* This clock is already initialized by SBL1 */ + return 0; + default: + return -EINVAL; + } +} + +static int msm_clk_probe(struct udevice *dev) +{ + struct msm_clk_priv *priv = dev_get_priv(dev); + + priv->base = dev_read_addr(dev); + if (priv->base == FDT_ADDR_T_NONE) + return -EINVAL; + + return 0; +} + +static ulong msm_clk_set_rate(struct clk *clk, ulong rate) +{ + return msm_set_rate(clk, rate); +} + +static int msm_enable(struct clk *clk) +{ + switch (clk->id) { + case GCC_BLSP1_QUP1_SPI_APPS_CLK: /*SPI1*/ + /* This clock is already initialized by SBL1 */ + return 0; + case GCC_PRNG_AHB_CLK: /*PRNG*/ + /* This clock is already initialized by SBL1 */ + return 0; + case GCC_USB3_MASTER_CLK: + case GCC_USB3_SLEEP_CLK: + case GCC_USB3_MOCK_UTMI_CLK: + case GCC_USB2_MASTER_CLK: + case GCC_USB2_SLEEP_CLK: + case GCC_USB2_MOCK_UTMI_CLK: + /* These clocks is already initialized by SBL1 */ + return 0; + default: + return -EINVAL; + } +} + +static struct clk_ops msm_clk_ops = { + .set_rate = msm_clk_set_rate, + .enable = msm_enable, +}; + +static const struct udevice_id msm_clk_ids[] = { + { .compatible = "qcom,gcc-ipq4019" }, + { } +}; + +U_BOOT_DRIVER(clk_msm) = { + .name = "clk_msm", + .id = UCLASS_CLK, + .of_match = msm_clk_ids, + .ops = &msm_clk_ops, + .priv_auto = sizeof(struct msm_clk_priv), + .probe = msm_clk_probe, +}; |