Hi Johannes, The changes look good to me, but you need to split the patch into 3 patches:
- rk3328 clock driver; - rkspi driver; - rk3328-u-boot.dtsi BTW: the patch no need reply-to previous mail, you can make a new thread. Thanks, - Kever On 2020/7/4 上午2:08, Johannes Krottmayer wrote:
Add U-Boot SPI support for the RK3328 Signed-off-by: Johannes Krottmayer <krj...@gmail.com> Cc: Kever Yang <kever.y...@rock-chips.com> Cc: Jagan Teki <ja...@amarulasolutions.com> --- It's a initial SPI support. Not sure if "rk3399_spi_params" is also needed. Probing of the SPI flash devices works. Tested with the PINE64 Rock64 board. Okay? arch/arm/dts/rk3328-u-boot.dtsi | 5 +++++ drivers/clk/rockchip/clk_rk3328.c | 31 +++++++++++++++++++++++++++++++ drivers/spi/rk_spi.c | 2 ++ 3 files changed, 38 insertions(+) diff --git a/arch/arm/dts/rk3328-u-boot.dtsi b/arch/arm/dts/rk3328-u-boot.dtsi index c69e13e11e..c980daae99 100644 --- a/arch/arm/dts/rk3328-u-boot.dtsi +++ b/arch/arm/dts/rk3328-u-boot.dtsi @@ -7,6 +7,7 @@ aliases { mmc0 = &emmc; mmc1 = &sdmmc; + spi0 = &spi0; };chosen {@@ -66,3 +67,7 @@ &usb20_otg { hnp-srp-disable; }; + +&spi0 { + u-boot,dm-pre-reloc; +}; diff --git a/drivers/clk/rockchip/clk_rk3328.c b/drivers/clk/rockchip/clk_rk3328.c index 02d3b08efa..bd95ab832b 100644 --- a/drivers/clk/rockchip/clk_rk3328.c +++ b/drivers/clk/rockchip/clk_rk3328.c @@ -555,6 +555,31 @@ static ulong rk3328_saradc_set_clk(struct rk3328_cru *cru, uint hz) return rk3328_saradc_get_clk(cru); }+static ulong rk3328_spi_get_clk(struct rk3328_cru *cru)+{ + u32 div, val; + + val = readl(&cru->clksel_con[24]); + div = (val & CLK_SPI_DIV_CON_MASK) >> CLK_SPI_DIV_CON_SHIFT; + + return DIV_TO_RATE(OSC_HZ, div); +} + +static ulong rk3328_spi_set_clk(struct rk3328_cru *cru, uint hz) +{ + u32 src_clk_div; + + src_clk_div = GPLL_HZ / hz; + assert(src_clk_div < 128); + + rk_clrsetreg(&cru->clksel_con[24], + CLK_PWM_PLL_SEL_MASK | CLK_PWM_DIV_CON_MASK, + CLK_PWM_PLL_SEL_GPLL << CLK_PWM_PLL_SEL_SHIFT | + (src_clk_div - 1) << CLK_PWM_DIV_CON_SHIFT); + + return rk3328_spi_get_clk(cru); +} + static ulong rk3328_clk_get_rate(struct clk *clk) { struct rk3328_clk_priv *priv = dev_get_priv(clk->dev); @@ -581,6 +606,9 @@ static ulong rk3328_clk_get_rate(struct clk *clk) case SCLK_SARADC: rate = rk3328_saradc_get_clk(priv->cru); break; + case SCLK_SPI: + rate = rk3328_spi_get_clk(priv->cru); + break; default: return -ENOENT; } @@ -617,6 +645,9 @@ static ulong rk3328_clk_set_rate(struct clk *clk, ulong rate) case SCLK_SARADC: ret = rk3328_saradc_set_clk(priv->cru, rate); break; + case SCLK_SPI: + ret = rk3328_spi_set_clk(priv->cru, rate); + break; case DCLK_LCDC: case SCLK_PDM: case SCLK_RTC32K: diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c index 833cb04922..0495e04945 100644 --- a/drivers/spi/rk_spi.c +++ b/drivers/spi/rk_spi.c @@ -545,7 +545,9 @@ const struct rockchip_spi_params rk3399_spi_params = { };static const struct udevice_id rockchip_spi_ids[] = {+ { .compatible = "rockchip,rk3066-spi" }, { .compatible = "rockchip,rk3288-spi" }, + { .compatible = "rockchip,rk3328-spi" }, { .compatible = "rockchip,rk3368-spi", .data = (ulong)&rk3399_spi_params }, { .compatible = "rockchip,rk3399-spi",
