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arm: spear: enable SSP1, 2 and 3 clocks when SPI controller driver is built

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SPI controllers SSP1, 2 and 3 require to enable their respective clocks.
Let's enable them only when the SPI controller driver is built.

Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
This commit is contained in:
Quentin Schulz 2018-08-31 16:28:30 +02:00 committed by Tom Rini
parent 8a4791fa08
commit ac47fbee6d
2 changed files with 5 additions and 0 deletions
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3
arch/arm/cpu/arm926ejs/spear/cpu.c
View file

@ -52,6 +52,9 @@ int arch_cpu_init(void)
#if defined(CONFIG_SPEAR_GPIO)
periph1_clken |= MISC_GPIO3ENB | MISC_GPIO4ENB;
#endif
#if defined(CONFIG_PL022_SPI)
periph1_clken |= MISC_SSP1ENB | MISC_SSP2ENB | MISC_SSP3ENB;
#endif
writel(periph1_clken, &misc_p->periph1_clken);

2
arch/arm/include/asm/arch-spear/spr_misc.h
View file

@ -146,11 +146,13 @@ struct misc_regs {
#define MISC_SMIENB 0x00200000
#define MISC_GPIO3ENB 0x00040000
#define MISC_GPT3ENB 0x00010000
#define MISC_SSP3ENB 0x00004000
#define MISC_GPIO4ENB 0x00002000
#define MISC_GPT2ENB 0x00000800
#define MISC_FSMCENB 0x00000200
#define MISC_I2CENB 0x00000080
#define MISC_SSP2ENB 0x00000070
#define MISC_SSP1ENB 0x00000020
#define MISC_UART0ENB 0x00000008
/* PERIPH_CLK_CFG */