[U-Boot] [PATCH V2 06/20] imx: mx7ulp: handle all the lpuarts in get_lpuart_clk
Stefano Babic
sbabic at denx.de
Sun Feb 12 09:20:31 UTC 2017
On 27/12/2016 11:04, Peng Fan wrote:
> Add handle the lpuarts in get_lpuart_clk.
>
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> Signed-off-by: Ye Li <ye.li at nxp.com>
> Cc: Stefano Babic <sbabic at denx.de>
> ---
>
> V2:
> None
>
> arch/arm/cpu/armv7/mx7ulp/clock.c | 34 +++++++++++++++++++++++++++++++---
> 1 file changed, 31 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/mx7ulp/clock.c b/arch/arm/cpu/armv7/mx7ulp/clock.c
> index 534f632..0c34d88 100644
> --- a/arch/arm/cpu/armv7/mx7ulp/clock.c
> +++ b/arch/arm/cpu/armv7/mx7ulp/clock.c
> @@ -42,7 +42,35 @@ static u32 get_ipg_clk(void)
>
> u32 get_lpuart_clk(void)
> {
> - return pcc_clock_get_rate(PER_CLK_LPUART4);
> + int index = 0;
> +
> + const u32 lpuart_array[] = {
> + LPUART0_RBASE,
> + LPUART1_RBASE,
> + LPUART2_RBASE,
> + LPUART3_RBASE,
> + LPUART4_RBASE,
> + LPUART5_RBASE,
> + LPUART6_RBASE,
> + LPUART7_RBASE,
> + };
> +
> + const enum pcc_clk lpuart_pcc_clks[] = {
> + PER_CLK_LPUART4,
> + PER_CLK_LPUART5,
> + PER_CLK_LPUART6,
> + PER_CLK_LPUART7,
> + };
> +
> + for (index = 0; index < 8; index++) {
> + if (lpuart_array[index] == LPUART_BASE)
> + break;
> + }
> +
> + if (index < 4 || index > 7)
> + return 0;
> +
> + return pcc_clock_get_rate(lpuart_pcc_clks[index - 4]);
> }
>
> unsigned int mxc_get_clock(enum mxc_clock clk)
> @@ -59,7 +87,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
> case MXC_I2C_CLK:
> return pcc_clock_get_rate(PER_CLK_LPI2C4);
> case MXC_UART_CLK:
> - return pcc_clock_get_rate(PER_CLK_LPUART4);
> + return get_lpuart_clk();
> case MXC_ESDHC_CLK:
> return pcc_clock_get_rate(PER_CLK_USDHC0);
> case MXC_ESDHC2_CLK:
> @@ -264,7 +292,7 @@ int do_mx7_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>
> printf("CORE %8d kHz\n", scg_clk_get_rate(SCG_CORE_CLK) / 1000);
> printf("IPG %8d kHz\n", mxc_get_clock(MXC_IPG_CLK) / 1000);
> - printf("UART %8d kHz\n", pcc_clock_get_rate(PER_CLK_LPUART4) / 1000);
> + printf("UART %8d kHz\n", mxc_get_clock(MXC_UART_CLK) / 1000);
> printf("AHB %8d kHz\n", mxc_get_clock(MXC_AHB_CLK) / 1000);
> printf("AXI %8d kHz\n", mxc_get_clock(MXC_AXI_CLK) / 1000);
> printf("DDR %8d kHz\n", mxc_get_clock(MXC_DDR_CLK) / 1000);
>
As far as I understand, you can better squash this patch with 4/20
Best regards,
Stefano Babic
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