[U-Boot] [PATCH 43/50] rockchip: pinctrl: Reduce the size for SPL

[Eddie Cai]

Hi Simon

I think the best way to reduce SPL size is to jump back to boot rom.
Which don't require eMMC, SD card driver in SPL any more. Even clock
and pinctrl driver is not required. All we need is DDR initialization.
We should do as little thing as possible in SPL and let U-boot take
care others.

Thanks

Eddie

2016-01-14 7:25 GMT+08:00 Simon Glass <sjg at chromium.org>:
> This file has many features that are not needed by SPL. Use #ifdef to
> remove the unused features and reduce the code size.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
>  drivers/pinctrl/rockchip/pinctrl_rk3288.c | 20 +++++++++++++++++---
>  1 file changed, 17 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3288.c b/drivers/pinctrl/rockchip/pinctrl_rk3288.c
> index 0e7721e..53b8cf2 100644
> --- a/drivers/pinctrl/rockchip/pinctrl_rk3288.c
> +++ b/drivers/pinctrl/rockchip/pinctrl_rk3288.c
> @@ -158,6 +158,7 @@ static void pinctrl_rk3288_i2c_config(struct rk3288_grf *grf,
>                                 GPIO0_C0_MASK << GPIO0_C0_SHIFT,
>                                 GPIO0_C0_I2C0PMU_SCL << GPIO0_C0_SHIFT);
>                 break;
> +#ifndef CONFIG_SPL_BUILD
>         case PERIPH_ID_I2C1:
>                 rk_clrsetreg(&grf->gpio8a_iomux,
>                              GPIO8A4_MASK << GPIO8A4_SHIFT |
> @@ -194,12 +195,14 @@ static void pinctrl_rk3288_i2c_config(struct rk3288_grf *grf,
>                              GPIO7C4_MASK << GPIO7C4_SHIFT,
>                              GPIO7C4_I2C5HDMI_SCL << GPIO7C4_SHIFT);
>                 break;
> +#endif
>         default:
>                 debug("i2c id = %d iomux error!\n", i2c_id);
>                 break;
>         }
>  }
>
> +#ifndef CONFIG_SPL_BUILD
>  static void pinctrl_rk3288_lcdc_config(struct rk3288_grf *grf, int lcd_id)
>  {
>         switch (lcd_id) {
> @@ -219,11 +222,13 @@ static void pinctrl_rk3288_lcdc_config(struct rk3288_grf *grf, int lcd_id)
>                 break;
>         }
>  }
> +#endif
>
>  static int pinctrl_rk3288_spi_config(struct rk3288_grf *grf,
>                                      enum periph_id spi_id, int cs)
>  {
>         switch (spi_id) {
> +#ifndef CONFIG_SPL_BUILD
>         case PERIPH_ID_SPI0:
>                 switch (cs) {
>                 case 0:
> @@ -260,6 +265,7 @@ static int pinctrl_rk3288_spi_config(struct rk3288_grf *grf,
>                              GPIO7B5_SPI1_CSN0 << GPIO7B5_SHIFT |
>                              GPIO7B4_SPI1_CLK << GPIO7B4_SHIFT);
>                 break;
> +#endif
>         case PERIPH_ID_SPI2:
>                 switch (cs) {
>                 case 0:
> @@ -297,6 +303,7 @@ err:
>  static void pinctrl_rk3288_uart_config(struct rk3288_grf *grf, int uart_id)
>  {
>         switch (uart_id) {
> +#ifndef CONFIG_SPL_BUILD
>         case PERIPH_ID_UART_BT:
>                 rk_clrsetreg(&grf->gpio4c_iomux,
>                              GPIO4C3_MASK << GPIO4C3_SHIFT |
> @@ -319,6 +326,7 @@ static void pinctrl_rk3288_uart_config(struct rk3288_grf *grf, int uart_id)
>                              GPIO5B1_UART1BB_SOUT << GPIO5B1_SHIFT |
>                              GPIO5B0_UART1BB_SIN << GPIO5B0_SHIFT);
>                 break;
> +#endif
>         case PERIPH_ID_UART_DBG:
>                 rk_clrsetreg(&grf->gpio7ch_iomux,
>                              GPIO7C7_MASK << GPIO7C7_SHIFT |
> @@ -326,6 +334,7 @@ static void pinctrl_rk3288_uart_config(struct rk3288_grf *grf, int uart_id)
>                              GPIO7C7_UART2DBG_SOUT << GPIO7C7_SHIFT |
>                              GPIO7C6_UART2DBG_SIN << GPIO7C6_SHIFT);
>                 break;
> +#ifndef CONFIG_SPL_BUILD
>         case PERIPH_ID_UART_GPS:
>                 rk_clrsetreg(&grf->gpio7b_iomux,
>                              GPIO7B2_MASK << GPIO7B2_SHIFT |
> @@ -349,6 +358,7 @@ static void pinctrl_rk3288_uart_config(struct rk3288_grf *grf, int uart_id)
>                              GPIO5B6_UART4EXP_SOUT << GPIO5B6_SHIFT |
>                              GPIO5B7_UART4EXP_SIN << GPIO5B7_SHIFT);
>                 break;
> +#endif
>         default:
>                 debug("uart id = %d iomux error!\n", uart_id);
>                 break;
> @@ -393,6 +403,7 @@ static void pinctrl_rk3288_sdmmc_config(struct rk3288_grf *grf, int mmc_id)
>         }
>  }
>
> +#ifndef CONFIG_SPL_BUILD
>  static void pinctrl_rk3288_hdmi_config(struct rk3288_grf *grf, int hdmi_id)
>  {
>         switch (hdmi_id) {
> @@ -407,6 +418,7 @@ static void pinctrl_rk3288_hdmi_config(struct rk3288_grf *grf, int hdmi_id)
>                 break;
>         }
>  }
> +#endif
>
>  static int rk3288_pinctrl_request(struct udevice *dev, int func, int flags)
>  {
> @@ -441,17 +453,19 @@ static int rk3288_pinctrl_request(struct udevice *dev, int func, int flags)
>         case PERIPH_ID_UART4:
>                 pinctrl_rk3288_uart_config(priv->grf, func);
>                 break;
> +#ifndef CONFIG_SPL_BUILD
>         case PERIPH_ID_LCDC0:
>         case PERIPH_ID_LCDC1:
>                 pinctrl_rk3288_lcdc_config(priv->grf, func);
>                 break;
> +       case PERIPH_ID_HDMI:
> +               pinctrl_rk3288_hdmi_config(priv->grf, func);
> +               break;
> +#endif
>         case PERIPH_ID_SDMMC0:
>         case PERIPH_ID_SDMMC1:
>                 pinctrl_rk3288_sdmmc_config(priv->grf, func);
>                 break;
> -       case PERIPH_ID_HDMI:
> -               pinctrl_rk3288_hdmi_config(priv->grf, func);
> -               break;
>         default:
>                 return -EINVAL;
>         }
> --
> 2.6.0.rc2.230.g3dd15c0
>
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