[U-Boot] [PATCH 1/7] omap5: add qspi support

[Lokesh Vutla]

On Wednesday 10 July 2013 04:55 PM, Sourav Poddar wrote:
> From: Matt Porter <mporter at ti.com>
> 
> Add QSPI definitions and clock configuration support.
> 
> Signed-off-by: Matt Porter <mporter at ti.com>
> Signed-off-by: Sourav Poddar <sourav.poddar at ti.com>
> ---
>  arch/arm/cpu/armv7/omap5/hw_data.c     |    7 ++++++-
>  arch/arm/cpu/armv7/omap5/prcm-regs.c   |    1 +
>  arch/arm/include/asm/arch-omap5/omap.h |    3 +++
>  arch/arm/include/asm/arch-omap5/spl.h  |    1 +
>  arch/arm/include/asm/omap_common.h     |    1 +
>  5 files changed, 12 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
> index 9374c6a..046ce44 100644
> --- a/arch/arm/cpu/armv7/omap5/hw_data.c
> +++ b/arch/arm/cpu/armv7/omap5/hw_data.c
> @@ -186,7 +186,7 @@ static const struct dpll_params per_dpll_params_768mhz_es2[NUM_SYS_CLKS] = {
>  
>  static const struct dpll_params per_dpll_params_768mhz_dra7xx[NUM_SYS_CLKS] = {
>  	{32, 0, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1},		/* 12 MHz   */
> -	{96, 4, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1},		/* 20 MHz   */
> +	{96, 4, 4, 1, 3, 4, 4, 2, -1, -1, -1, -1},		/* 20 MHz   */
>  	{160, 6, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1},		/* 16.8 MHz */
>  	{20, 0, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1},		/* 19.2 MHz */
>  	{192, 12, 4, 1, 3, 4, 10, 2, -1, -1, -1, -1},		/* 26 MHz   */
> @@ -423,6 +423,7 @@ void enable_basic_clocks(void)
>  		(*prcm)->cm_wkup_wdtimer2_clkctrl,
>  		(*prcm)->cm_l4per_uart3_clkctrl,
>  		(*prcm)->cm_l4per_i2c1_clkctrl,
> +		(*prcm)->cm_l4per_qspi_clkctrl,
Keep this also under CONFIG_TI_QSPI because we should enable QSPI clocks
only if support is available.

Thanks,
Lokesh
>  		0
>  	};
>  
> @@ -451,6 +452,10 @@ void enable_basic_clocks(void)
>  			 clk_modules_explicit_en_essential,
>  			 1);
>  
> +#ifdef CONFIG_TI_QSPI
> +	setbits_le32((*prcm)->cm_l4per_qspi_clkctrl, (1<<24));
> +#endif
> +
>  	/* Enable SCRM OPT clocks for PER and CORE dpll */
>  	setbits_le32((*prcm)->cm_wkupaon_scrm_clkctrl,
>  			OPTFCLKEN_SCRM_PER_MASK);
> diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
> index 331117c..debc56b 100644
> --- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
> +++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
> @@ -926,6 +926,7 @@ struct prcm_regs const dra7xx_prcm = {
>  	.cm_l4per_gpio8_clkctrl			= 0x4a009818,
>  	.cm_l4per_mmcsd3_clkctrl		= 0x4a009820,
>  	.cm_l4per_mmcsd4_clkctrl		= 0x4a009828,
> +	.cm_l4per_qspi_clkctrl			= 0x4a009838,
>  	.cm_l4per_uart1_clkctrl			= 0x4a009840,
>  	.cm_l4per_uart2_clkctrl			= 0x4a009848,
>  	.cm_l4per_uart3_clkctrl			= 0x4a009850,
> diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
> index e7d79fc..d2c4930 100644
> --- a/arch/arm/include/asm/arch-omap5/omap.h
> +++ b/arch/arm/include/asm/arch-omap5/omap.h
> @@ -67,6 +67,9 @@
>  /* GPMC */
>  #define OMAP54XX_GPMC_BASE	0x50000000
>  
> +/* QSPI */
> +#define QSPI_BASE		0x4B300000
> +
>  /*
>   * Hardware Register Details
>   */
> diff --git a/arch/arm/include/asm/arch-omap5/spl.h b/arch/arm/include/asm/arch-omap5/spl.h
> index d4d353c..8905cb8 100644
> --- a/arch/arm/include/asm/arch-omap5/spl.h
> +++ b/arch/arm/include/asm/arch-omap5/spl.h
> @@ -31,6 +31,7 @@
>  #define BOOT_DEVICE_MMC1        5
>  #define BOOT_DEVICE_MMC2        6
>  #define BOOT_DEVICE_MMC2_2	7
> +#define BOOT_DEVICE_SPI		10
>  
>  #define MMC_BOOT_DEVICES_START	BOOT_DEVICE_MMC1
>  #define MMC_BOOT_DEVICES_END	BOOT_DEVICE_MMC2_2
> diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
> index fa28358..c8d4619 100644
> --- a/arch/arm/include/asm/omap_common.h
> +++ b/arch/arm/include/asm/omap_common.h
> @@ -279,6 +279,7 @@ struct prcm_regs {
>  	u32 cm_l4per_mmcsd4_clkctrl;
>  	u32 cm_l4per_msprohg_clkctrl;
>  	u32 cm_l4per_slimbus2_clkctrl;
> +	u32 cm_l4per_qspi_clkctrl;
>  	u32 cm_l4per_uart1_clkctrl;
>  	u32 cm_l4per_uart2_clkctrl;
>  	u32 cm_l4per_uart3_clkctrl;
>