diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-sunxi/spl_spi_sunxi.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/arm/mach-sunxi/spl_spi_sunxi.c b/arch/arm/mach-sunxi/spl_spi_sunxi.c index 5b4598a25b..cab6affe8d 100644 --- a/arch/arm/mach-sunxi/spl_spi_sunxi.c +++ b/arch/arm/mach-sunxi/spl_spi_sunxi.c @@ -100,9 +100,14 @@ static void spi0_pinmux_setup(unsigned int pin_function) sunxi_gpio_set_cfgpin(SUNXI_GPC(3), pin_function); } +static bool is_sun6i_gen_spi(void) +{ + return IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I); +} + static uintptr_t spi0_base_address(void) { - if (!IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) + if (!is_sun6i_gen_spi()) return 0x01C05000; return 0x01C68000; @@ -116,7 +121,7 @@ static void spi0_enable_clock(void) uintptr_t base = spi0_base_address(); /* Deassert SPI0 reset on SUN6I */ - if (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) + if (is_sun6i_gen_spi()) setbits_le32(SUN6I_BUS_SOFT_RST_REG0, (1 << AHB_RESET_SPI0_SHIFT)); @@ -124,12 +129,12 @@ static void spi0_enable_clock(void) setbits_le32(CCM_AHB_GATING0, (1 << AHB_GATE_OFFSET_SPI0)); /* Divide by 4 */ - writel(SPI0_CLK_DIV_BY_4, base + (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I) ? + writel(SPI0_CLK_DIV_BY_4, base + (is_sun6i_gen_spi() ? SUN6I_SPI0_CCTL : SUN4I_SPI0_CCTL)); /* 24MHz from OSC24M */ writel((1 << 31), CCM_SPI0_CLK); - if (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) { + if (is_sun6i_gen_spi()) { /* Enable SPI in the master mode and do a soft reset */ setbits_le32(base + SUN6I_SPI0_GCR, SUN6I_CTL_MASTER | SUN6I_CTL_ENABLE | SUN6I_CTL_SRST); @@ -150,7 +155,7 @@ static void spi0_disable_clock(void) uintptr_t base = spi0_base_address(); /* Disable the SPI0 controller */ - if (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) + if (is_sun6i_gen_spi()) clrbits_le32(base + SUN6I_SPI0_GCR, SUN6I_CTL_MASTER | SUN6I_CTL_ENABLE); else @@ -164,7 +169,7 @@ static void spi0_disable_clock(void) clrbits_le32(CCM_AHB_GATING0, (1 << AHB_GATE_OFFSET_SPI0)); /* Assert SPI0 reset on SUN6I */ - if (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) + if (is_sun6i_gen_spi()) clrbits_le32(SUN6I_BUS_SOFT_RST_REG0, (1 << AHB_RESET_SPI0_SHIFT)); } @@ -184,7 +189,8 @@ static void spi0_deinit(void) { /* New SoCs can disable pins, older could only set them as input */ unsigned int pin_function = SUNXI_GPIO_INPUT; - if (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) + + if (is_sun6i_gen_spi()) pin_function = SUNXI_GPIO_DISABLE; spi0_disable_clock(); @@ -245,7 +251,7 @@ static void spi0_read_data(void *buf, u32 addr, u32 len) if (chunk_len > SPI_READ_MAX_SIZE) chunk_len = SPI_READ_MAX_SIZE; - if (IS_ENABLED(CONFIG_SUNXI_GEN_SUN6I)) { + if (is_sun6i_gen_spi()) { sunxi_spi0_read_data(buf8, addr, chunk_len, base + SUN6I_SPI0_TCR, SUN6I_TCR_XCH, |