Dear Rajeshwari Shinde,
On 14/12/12 20:56, Rajeshwari Shinde wrote:
Api is added to decode peripheral id based on the interrupt number of the peripheral.
Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com Acked-by; Simon Glass sjg@chromium.org
Changes in V1: -Rebased on latest u-boot-samsung arch/arm/cpu/armv7/exynos/pinmux.c | 28 ++++++++++++++++++++++++++ arch/arm/include/asm/arch-exynos/periph.h | 31 ++++++++++++++++------------ arch/arm/include/asm/arch-exynos/pinmux.h | 8 +++++++ 3 files changed, 54 insertions(+), 13 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c index f02f441..f9f6911 100644 --- a/arch/arm/cpu/armv7/exynos/pinmux.c +++ b/arch/arm/cpu/armv7/exynos/pinmux.c @@ -22,6 +22,7 @@ */
#include <common.h> +#include <fdtdec.h> #include <asm/arch/gpio.h> #include <asm/arch/pinmux.h> #include <asm/arch/sromc.h> @@ -396,3 +397,30 @@ int exynos_pinmux_config(int peripheral, int flags) return -1; } }
+#ifdef CONFIG_OF_CONTROL +static int exynos5_pinmux_decode_periph_id(const void *blob, int node) +{
- int err;
- u32 cell[3];
- err = fdtdec_get_int_array(blob, node, "interrupts", cell,
ARRAY_SIZE(cell));- if (err)
return PERIPH_ID_NONE;- if ((131 > cell[1]) || (cell[1] < 31))
What means 131 and 31?
return cell[1];- debug(" invalid peripheral id\n");
- return PERIPH_ID_NONE;
+}
+int pinmux_decode_periph_id(const void *blob, int node) +{
- if (cpu_is_exynos5())
return exynos5_pinmux_decode_periph_id(blob, node);- else
return PERIPH_ID_NONE;+} +#endif diff --git a/arch/arm/include/asm/arch-exynos/periph.h b/arch/arm/include/asm/arch-exynos/periph.h index 13abd2d..783b77c 100644 --- a/arch/arm/include/asm/arch-exynos/periph.h +++ b/arch/arm/include/asm/arch-exynos/periph.h @@ -25,12 +25,17 @@ #define __ASM_ARM_ARCH_PERIPH_H
/*
- Peripherals requiring clock/pinmux configuration. List will
- Peripherals requiring pinmux configuration0. List will
configuration0?
- grow with support for more devices getting added.
*/
- Numbering based on interrupt table.
enum periph_id {
- PERIPH_ID_I2C0,
- PERIPH_ID_UART0 = 51,
- PERIPH_ID_UART1,
- PERIPH_ID_UART2,
- PERIPH_ID_UART3,
- PERIPH_ID_I2C0 = 56, PERIPH_ID_I2C1, PERIPH_ID_I2C2, PERIPH_ID_I2C3,
@@ -38,22 +43,22 @@ enum periph_id { PERIPH_ID_I2C5, PERIPH_ID_I2C6, PERIPH_ID_I2C7,
- PERIPH_ID_I2S1,
- PERIPH_ID_SDMMC0,
- PERIPH_ID_SPI0 = 68,
- PERIPH_ID_SPI1,
- PERIPH_ID_SPI2,
- PERIPH_ID_SDMMC0 = 75, PERIPH_ID_SDMMC1, PERIPH_ID_SDMMC2, PERIPH_ID_SDMMC3,
- PERIPH_ID_SDMMC4,
- PERIPH_ID_SROMC,
- PERIPH_ID_SPI0,
- PERIPH_ID_SPI1,
- PERIPH_ID_SPI2,
- PERIPH_ID_I2S1 = 99,
+/* Since following peripherals do not have shared peripheral interrupts (SPIs)
Please check multi line comment rule.
- they are numbered arbitiraly after the maximum SPIs Exynos has (128)
- */
- PERIPH_ID_SROMC = 128, PERIPH_ID_SPI3, PERIPH_ID_SPI4,
- PERIPH_ID_UART0,
- PERIPH_ID_UART1,
- PERIPH_ID_UART2,
- PERIPH_ID_UART3,
PERIPH_ID_SDMMC4,
PERIPH_ID_COUNT, PERIPH_ID_NONE = -1,
diff --git a/arch/arm/include/asm/arch-exynos/pinmux.h b/arch/arm/include/asm/arch-exynos/pinmux.h index 10ea736..00cbb0d 100644 --- a/arch/arm/include/asm/arch-exynos/pinmux.h +++ b/arch/arm/include/asm/arch-exynos/pinmux.h @@ -55,4 +55,12 @@ enum { */ int exynos_pinmux_config(int peripheral, int flags);
+/**
please remove "*".
- Decode the peripheral id using the interrpt numbers.
- @param blob Device tree blbo
- @param node FDT I2C node to find
- @return peripheral id if ok, PERIPH_ID_NONE on error
- */
+int pinmux_decode_periph_id(const void *blob, int node); #endif
-- Thanks, Minkyu Kang.