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misc: imx8: add scfw api impementation

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Add clk/misc/pad/pm/rm scfw api implementaion for different
drivers to invoke. The low level code is using misc_call
to invoke imx8_scu driver.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan 2018-10-18 14:28:12 +02:00 committed by Stefano Babic
parent ef64e782ec
commit ad9d40acb4
3 changed files with 398 additions and 1 deletions
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30
arch/arm/include/asm/arch-imx8/sci/sci.h
View file

@ -55,4 +55,34 @@ static inline int sc_err_to_linux(sc_err_t err)
return ret;
}
/* PM API*/
int sc_pm_set_resource_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
sc_pm_power_mode_t mode);
int sc_pm_set_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_pm_clock_rate_t *rate);
int sc_pm_get_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_pm_clock_rate_t *rate);
int sc_pm_set_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_pm_clock_rate_t *rate);
int sc_pm_get_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_pm_clock_rate_t *rate);
int sc_pm_clock_enable(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_bool_t enable, sc_bool_t autog);
/* MISC API */
int sc_misc_get_control(sc_ipc_t ipc, sc_rsrc_t resource, sc_ctrl_t ctrl,
u32 *val);
void sc_misc_get_boot_dev(sc_ipc_t ipc, sc_rsrc_t *boot_dev);
void sc_misc_boot_status(sc_ipc_t ipc, sc_misc_boot_status_t status);
void sc_misc_build_info(sc_ipc_t ipc, u32 *build, u32 *commit);
int sc_misc_otp_fuse_read(sc_ipc_t ipc, u32 word, u32 *val);
/* RM API */
sc_bool_t sc_rm_is_memreg_owned(sc_ipc_t ipc, sc_rm_mr_t mr);
int sc_rm_get_memreg_info(sc_ipc_t ipc, sc_rm_mr_t mr, sc_faddr_t *addr_start,
sc_faddr_t *addr_end);
sc_bool_t sc_rm_is_resource_owned(sc_ipc_t ipc, sc_rsrc_t resource);
/* PAD API */
int sc_pad_set(sc_ipc_t ipc, sc_pad_t pad, u32 val);
#endif

2
drivers/misc/imx8/Makefile
View file

@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0+
obj-y += scu.o
obj-y += scu_api.o scu.o

367
drivers/misc/imx8/scu_api.c Normal file
View file

@ -0,0 +1,367 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2018 NXP
*
* Peng Fan <peng.fan@nxp.com>
*/
#include <common.h>
#include <asm/io.h>
#include <dm.h>
#include <asm/arch/sci/sci.h>
#include <misc.h>
DECLARE_GLOBAL_DATA_PTR;
/* CLK and PM */
int sc_pm_set_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_pm_clock_rate_t *rate)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_PM;
RPC_FUNC(&msg) = (u8)PM_FUNC_SET_CLOCK_RATE;
RPC_U32(&msg, 0U) = *(u32 *)rate;
RPC_U16(&msg, 4U) = (u16)resource;
RPC_U8(&msg, 6U) = (u8)clk;
RPC_SIZE(&msg) = 3U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: rate:%u resource:%u: clk:%u res:%d\n",
__func__, *rate, resource, clk, RPC_R8(&msg));
*rate = RPC_U32(&msg, 0U);
return ret;
}
int sc_pm_get_clock_rate(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_pm_clock_rate_t *rate)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_PM;
RPC_FUNC(&msg) = (u8)PM_FUNC_GET_CLOCK_RATE;
RPC_U16(&msg, 0U) = (u16)resource;
RPC_U8(&msg, 2U) = (u8)clk;
RPC_SIZE(&msg) = 2U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret) {
printf("%s: resource:%d clk:%d: res:%d\n",
__func__, resource, clk, RPC_R8(&msg));
return ret;
}
if (rate)
*rate = RPC_U32(&msg, 0U);
return 0;
}
int sc_pm_clock_enable(sc_ipc_t ipc, sc_rsrc_t resource, sc_pm_clk_t clk,
sc_bool_t enable, sc_bool_t autog)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_PM;
RPC_FUNC(&msg) = (u8)PM_FUNC_CLOCK_ENABLE;
RPC_U16(&msg, 0U) = (u16)resource;
RPC_U8(&msg, 2U) = (u8)clk;
RPC_U8(&msg, 3U) = (u8)enable;
RPC_U8(&msg, 4U) = (u8)autog;
RPC_SIZE(&msg) = 3U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: resource:%d clk:%d: enable:%d autog: %d, res:%d\n",
__func__, resource, clk, enable, autog, RPC_R8(&msg));
return ret;
}
int sc_pm_set_resource_power_mode(sc_ipc_t ipc, sc_rsrc_t resource,
sc_pm_power_mode_t mode)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_PM;
RPC_FUNC(&msg) = (u8)PM_FUNC_SET_RESOURCE_POWER_MODE;
RPC_U16(&msg, 0U) = (u16)resource;
RPC_U8(&msg, 2U) = (u8)mode;
RPC_SIZE(&msg) = 2U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: resource:%d mode:%d: res:%d\n",
__func__, resource, mode, RPC_R8(&msg));
return ret;
}
/* PAD */
int sc_pad_set(sc_ipc_t ipc, sc_pad_t pad, u32 val)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_PAD;
RPC_FUNC(&msg) = (u8)PAD_FUNC_SET;
RPC_U32(&msg, 0U) = (u32)val;
RPC_U16(&msg, 4U) = (u16)pad;
RPC_SIZE(&msg) = 3U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: val:%d pad:%d: res:%d\n",
__func__, val, pad, RPC_R8(&msg));
return ret;
}
/* MISC */
int sc_misc_get_control(sc_ipc_t ipc, sc_rsrc_t resource, sc_ctrl_t ctrl,
u32 *val)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_MISC;
RPC_FUNC(&msg) = (u8)MISC_FUNC_GET_CONTROL;
RPC_U32(&msg, 0U) = (u32)ctrl;
RPC_U16(&msg, 4U) = (u16)resource;
RPC_SIZE(&msg) = 3U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: ctrl:%d resource:%d: res:%d\n",
__func__, ctrl, resource, RPC_R8(&msg));
if (!val)
*val = RPC_U32(&msg, 0U);
return ret;
}
void sc_misc_get_boot_dev(sc_ipc_t ipc, sc_rsrc_t *boot_dev)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_MISC;
RPC_FUNC(&msg) = (u8)MISC_FUNC_GET_BOOT_DEV;
RPC_SIZE(&msg) = 1U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: res:%d\n", __func__, RPC_R8(&msg));
if (!boot_dev)
*boot_dev = RPC_U16(&msg, 0U);
}
void sc_misc_boot_status(sc_ipc_t ipc, sc_misc_boot_status_t status)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_MISC;
RPC_FUNC(&msg) = (u8)MISC_FUNC_BOOT_STATUS;
RPC_U8(&msg, 0U) = (u8)status;
RPC_SIZE(&msg) = 2U;
ret = misc_call(dev, SC_TRUE, &msg, size, &msg, size);
if (ret)
printf("%s: status:%d res:%d\n",
__func__, status, RPC_R8(&msg));
}
void sc_misc_build_info(sc_ipc_t ipc, u32 *build, u32 *commit)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = SC_RPC_SVC_MISC;
RPC_FUNC(&msg) = MISC_FUNC_BUILD_INFO;
RPC_SIZE(&msg) = 1;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret < 0) {
printf("%s: err: %d\n", __func__, ret);
return;
}
if (build)
*build = RPC_U32(&msg, 0);
if (commit)
*commit = RPC_U32(&msg, 4);
}
int sc_misc_otp_fuse_read(sc_ipc_t ipc, u32 word, u32 *val)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = SC_RPC_SVC_MISC;
RPC_FUNC(&msg) = MISC_FUNC_OTP_FUSE_READ;
RPC_U32(&msg, 0) = word;
RPC_SIZE(&msg) = 2;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret < 0)
return ret;
if (val)
*val = RPC_U32(&msg, 0U);
return 0;
}
/* RM */
sc_bool_t sc_rm_is_memreg_owned(sc_ipc_t ipc, sc_rm_mr_t mr)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
sc_err_t result;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_RM;
RPC_FUNC(&msg) = (u8)RM_FUNC_IS_MEMREG_OWNED;
RPC_U8(&msg, 0U) = (u8)mr;
RPC_SIZE(&msg) = 2U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
result = RPC_R8(&msg);
if (result != 0 && result != 1) {
printf("%s: mr:%d res:%d\n", __func__, mr, RPC_R8(&msg));
if (ret)
printf("%s: mr:%d res:%d\n", __func__, mr,
RPC_R8(&msg));
}
return (sc_bool_t)result;
}
int sc_rm_get_memreg_info(sc_ipc_t ipc, sc_rm_mr_t mr, sc_faddr_t *addr_start,
sc_faddr_t *addr_end)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_RM;
RPC_FUNC(&msg) = (u8)RM_FUNC_GET_MEMREG_INFO;
RPC_U8(&msg, 0U) = (u8)mr;
RPC_SIZE(&msg) = 2U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s: mr:%d res:%d\n", __func__, mr, RPC_R8(&msg));
if (addr_start)
*addr_start = ((u64)RPC_U32(&msg, 0U) << 32U) |
RPC_U32(&msg, 4U);
if (addr_end)
*addr_end = ((u64)RPC_U32(&msg, 8U) << 32U) |
RPC_U32(&msg, 12U);
return ret;
}
sc_bool_t sc_rm_is_resource_owned(sc_ipc_t ipc, sc_rsrc_t resource)
{
struct udevice *dev = gd->arch.scu_dev;
int size = sizeof(struct sc_rpc_msg_s);
struct sc_rpc_msg_s msg;
int ret;
u8 result;
if (!dev)
hang();
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SVC(&msg) = (u8)SC_RPC_SVC_RM;
RPC_FUNC(&msg) = (u8)RM_FUNC_IS_RESOURCE_OWNED;
RPC_U16(&msg, 0U) = (u16)resource;
RPC_SIZE(&msg) = 2U;
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
result = RPC_R8(&msg);
if (result != 0 && result != 1) {
printf("%s: resource:%d res:%d\n",
__func__, resource, RPC_R8(&msg));
if (ret)
printf("%s: res:%d res:%d\n", __func__, resource,
RPC_R8(&msg));
}
return !!result;
}