From 47c5455a489c8e558ecb002a3a97a030ce490f9e Mon Sep 17 00:00:00 2001 From: Helmut Raiger Date: Thu, 29 Sep 2011 05:45:03 +0000 Subject: mx31: provide readable WEIM CS accessor setup_weimcs() and some macros are added to support the setup for i.MX31 WEIM chip selects. As a compromise between verbosity and readability an ASCII-art'ish bit comment is used instead of bitfields. All i.MX31 boards have been patched to use this approach using a helper program to verify the changes. Signed-off-by: Helmut Raiger Acked-by: Stefano Babic --- board/freescale/mx31ads/mx31ads.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'board/freescale/mx31ads') diff --git a/board/freescale/mx31ads/mx31ads.c b/board/freescale/mx31ads/mx31ads.c index 4dd1e63..c668837 100644 --- a/board/freescale/mx31ads/mx31ads.c +++ b/board/freescale/mx31ads/mx31ads.c @@ -25,6 +25,7 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -48,9 +49,16 @@ int board_early_init_f(void) * the only non-zero field "Wait State Control" is set to half the * default value. */ - __REG(CSCR_U(0)) = 0x00000f00; - __REG(CSCR_L(0)) = 0x10000D03; - __REG(CSCR_A(0)) = 0x00720900; + static const struct mxc_weimcs cs0 = { + /* sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */ + CSCR_U(0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0), + /* oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */ + CSCR_L(1, 0, 0, 0, 0, 1, 5, 0, 0, 0, 1, 1), + /* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/ + CSCR_A(0, 0, 7, 2, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0) + }; + + mxc_setup_weimcs(0, &cs0); /* setup pins for UART1 */ mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX); -- cgit v1.1