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iMX8M: Add support to enable CONFIG_IMX_HAB

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Add some SOC level codes and build configurations to use HAB lib for
CONFIG_IMX_HAB (secure boot), like adding the SEC_CONFIG fuse, enable
fuse driver, CAAM clock function, and add CAAM secure RAM to MMU table.

The FSL_CAAM is temporally not enabled for iMX8M when CONFIG_IMX_HAB is set,
because we don't need the CAAM driver for SPL.

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Ye Li 2021-03-25 17:30:17 +08:00 committed by Otavio Salvador
parent 3ca32d2430
commit 25d89d5535
5 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/include/asm/arch-imx8m/clock.h
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@ -275,3 +275,4 @@ void enable_ocotp_clk(unsigned char enable);
int enable_i2c_clk(unsigned char enable, unsigned int i2c_num);
int set_clk_enet(enum enet_freq type);
int set_clk_eqos(enum enet_freq type);
void hab_caam_clock_enable(unsigned char enable);

2
arch/arm/mach-imx/Kconfig
View File

@ -43,7 +43,7 @@ config USE_IMXIMG_PLUGIN
config IMX_HAB
bool "Support i.MX HAB features"
depends on ARCH_MX7 || ARCH_MX6 || ARCH_MX5
depends on ARCH_MX7 || ARCH_MX6 || ARCH_MX5 || ARCH_IMX8M
select FSL_CAAM if HAS_CAAM
imply CMD_DEKBLOB
help

1
arch/arm/mach-imx/Makefile
View File

@ -16,6 +16,7 @@ endif
obj-$(CONFIG_ENV_IS_IN_MMC) += mmc_env.o
obj-$(CONFIG_FEC_MXC) += mac.o
obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
obj-$(CONFIG_IMX_HAB) += hab.o
obj-y += cpu.o
endif

8
arch/arm/mach-imx/imx8m/clock_imx8mm.c
View File

@ -21,6 +21,14 @@ DECLARE_GLOBAL_DATA_PTR;
static struct anamix_pll *ana_pll = (struct anamix_pll *)ANATOP_BASE_ADDR;
static u32 get_root_clk(enum clk_root_index clock_id);
#ifdef CONFIG_IMX_HAB
void hab_caam_clock_enable(unsigned char enable)
{
/* The CAAM clock is always on for iMX8M */
}
#endif
void enable_ocotp_clk(unsigned char enable)
{
clock_enable(CCGR_OCOTP, !!enable);

7
arch/arm/mach-imx/imx8m/clock_imx8mq.c
View File

@ -310,6 +310,13 @@ static u32 get_root_clk(enum clk_root_index clock_id)
return root_src_clk / (post_podf + 1) / (pre_podf + 1);
}
#ifdef CONFIG_IMX_HAB
void hab_caam_clock_enable(unsigned char enable)
{
/* The CAAM clock is always on for iMX8M */
}
#endif
#ifdef CONFIG_MXC_OCOTP
void enable_ocotp_clk(unsigned char enable)
{