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| author | Hans de Goede <hdegoede@redhat.com> | 2015-01-26 16:59:12 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-02-02 13:55:14 +0100 |
| commit | 37d46dd3c4f3617b88a5797aab3600d3a4f32bd5 (patch) | |
| tree | 79aab56d1f8695dd58eddd3f2945192e52371c1f /arch/arm | |
| parent | d35488c7359ac5b6e20d9fe1895360aa7f3122f2 (diff) | |
| download | u-boot-imx-37d46dd3c4f3617b88a5797aab3600d3a4f32bd5.zip u-boot-imx-37d46dd3c4f3617b88a5797aab3600d3a4f32bd5.tar.gz u-boot-imx-37d46dd3c4f3617b88a5797aab3600d3a4f32bd5.tar.bz2 | |
sunxi: rsb: Move rsb_set_device_mode() call to rsb_init()
It turns out that the device_mode_data is rsb specific, rather then slave
specific, so integrate the rsb_set_device_mode() call into rsb_init().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/rsb.c | 11 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-sunxi/rsb.h | 4 |
2 files changed, 10 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/rsb.c b/arch/arm/cpu/armv7/sunxi/rsb.c index 55e9433..b00befb 100644 --- a/arch/arm/cpu/armv7/sunxi/rsb.c +++ b/arch/arm/cpu/armv7/sunxi/rsb.c @@ -16,6 +16,8 @@ #include <asm/arch/prcm.h> #include <asm/arch/rsb.h> +static int rsb_set_device_mode(void); + static void rsb_cfg_io(void) { #ifdef CONFIG_MACH_SUN8I @@ -53,7 +55,7 @@ static void rsb_set_clk(void) writel((cd_odly << 8) | div, &rsb->ccr); } -void rsb_init(void) +int rsb_init(void) { struct sunxi_rsb_reg * const rsb = (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; @@ -65,6 +67,8 @@ void rsb_init(void) writel(RSB_CTRL_SOFT_RST, &rsb->ctrl); rsb_set_clk(); + + return rsb_set_device_mode(); } static int rsb_await_trans(void) @@ -99,13 +103,14 @@ static int rsb_await_trans(void) return ret; } -int rsb_set_device_mode(u32 device_mode_data) +static int rsb_set_device_mode(void) { struct sunxi_rsb_reg * const rsb = (struct sunxi_rsb_reg *)SUNXI_RSB_BASE; unsigned long tmo = timer_get_us() + 1000000; - writel(RSB_DMCR_DEVICE_MODE_START | device_mode_data, &rsb->dmcr); + writel(RSB_DMCR_DEVICE_MODE_START | RSB_DMCR_DEVICE_MODE_DATA, + &rsb->dmcr); while (readl(&rsb->dmcr) & RSB_DMCR_DEVICE_MODE_START) { if (timer_get_us() > tmo) diff --git a/arch/arm/include/asm/arch-sunxi/rsb.h b/arch/arm/include/asm/arch-sunxi/rsb.h index 95a595a..a893466 100644 --- a/arch/arm/include/asm/arch-sunxi/rsb.h +++ b/arch/arm/include/asm/arch-sunxi/rsb.h @@ -37,6 +37,7 @@ struct sunxi_rsb_reg { #define RSB_STAT_TERR_INT (1 << 1) #define RSB_STAT_LBSY_INT (1 << 2) +#define RSB_DMCR_DEVICE_MODE_DATA 0x7c3e00 #define RSB_DMCR_DEVICE_MODE_START (1 << 31) #define RSB_CMD_BYTE_WRITE 0x4e @@ -46,8 +47,7 @@ struct sunxi_rsb_reg { #define RSB_DEVADDR_RUNTIME_ADDR(x) ((x) << 16) #define RSB_DEVADDR_DEVICE_ADDR(x) ((x) << 0) -void rsb_init(void); -int rsb_set_device_mode(u32 device_mode_data); +int rsb_init(void); int rsb_set_device_address(u16 device_addr, u16 runtime_addr); int rsb_write(const u16 runtime_device_addr, const u8 reg_addr, u8 data); int rsb_read(const u16 runtime_device_addr, const u8 reg_addr, u8 *data); |