Date: Sat, 21 Sep 2013 19:42:37 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r255764 - head/sys/mips/atheros Message-ID: <201309211942.r8LJgb3T025341@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: adrian Date: Sat Sep 21 19:42:37 2013 New Revision: 255764 URL: http://svnweb.freebsd.org/changeset/base/255764 Log: Fix the AR933x CPU UART support by using the correct clock when calculating the UART frequency. Tested: * AR933x (carambola 2 board), UART now works again Approved by: re Modified: head/sys/mips/atheros/ar933x_chip.c Modified: head/sys/mips/atheros/ar933x_chip.c ============================================================================== --- head/sys/mips/atheros/ar933x_chip.c Sat Sep 21 16:46:34 2013 (r255763) +++ head/sys/mips/atheros/ar933x_chip.c Sat Sep 21 19:42:37 2013 (r255764) @@ -115,8 +115,14 @@ ar933x_chip_detect_sys_frequency(void) u_ar71xx_ahb_freq = freq / t; } - /* XXX uart should be the refclk, no? */ - u_ar71xx_uart_freq = u_ar71xx_ahb_freq; + /* On the AR933x, the UART frequency is the reference clock, + * not the AHB bus clock. + */ + u_ar71xx_uart_freq = u_ar71xx_refclk; + + /* + * XXX check what the watchdog frequency should be? + */ u_ar71xx_wdt_freq = u_ar71xx_ahb_freq; }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201309211942.r8LJgb3T025341>