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/imx31_phycore/imx31_phycore.c | 41 +++++++++++++++++++++++++++++-------- 1 file changed, 32 insertions(+), 9 deletions(-) (limited to 'board/imx31_phycore') diff --git a/board/imx31_phycore/imx31_phycore.c b/board/imx31_phycore/imx31_phycore.c index 773900e3c..a697e4791 100644 --- a/board/imx31_phycore/imx31_phycore.c +++ b/board/imx31_phycore/imx31_phycore.c @@ -27,6 +27,7 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -49,17 +50,39 @@ int board_init(void) int board_early_init_f(void) { - __REG(CSCR_U(0)) = 0x0000cf03; /* CS0: Nor Flash */ - __REG(CSCR_L(0)) = 0x10000d03; - __REG(CSCR_A(0)) = 0x00720900; + /* CS0: Nor Flash */ + 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, 3, 15, 0, 0, 3), + /* 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) + }; + + /* CS1: Network Controller */ + static const struct mxc_weimcs cs1 = { + /* sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */ + CSCR_U(0, 0, 0, 0, 0, 0, 0, 0, 3, 31, 0, 0, 6), + /* oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */ + CSCR_L(4, 4, 4, 10, 4, 0, 5, 4, 0, 0, 0, 1), + /* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/ + CSCR_A(4, 4, 4, 4, 0, 1, 4, 3, 0, 0, 0, 0, 1, 0) + }; - __REG(CSCR_U(1)) = 0x0000df06; /* CS1: Network Controller */ - __REG(CSCR_L(1)) = 0x444a4541; - __REG(CSCR_A(1)) = 0x44443302; + /* CS4: SRAM */ + static const struct mxc_weimcs cs4 = { + /* sp wp bcd bcs psz pme sync dol cnc wsc ew wws edc */ + CSCR_U(0, 0, 0, 0, 0, 0, 0, 0, 3, 24, 0, 4, 3), + /* oea oen ebwa ebwn csa ebc dsz csn psr cre wrap csen */ + CSCR_L(2, 2, 2, 5, 2, 0, 5, 2, 0, 0, 0, 1), + /* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/ + CSCR_A(2, 2, 2, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0) + }; - __REG(CSCR_U(4)) = 0x0000d843; /* CS4: SRAM */ - __REG(CSCR_L(4)) = 0x22252521; - __REG(CSCR_A(4)) = 0x22220a00; + mxc_setup_weimcs(0, &cs0); + mxc_setup_weimcs(1, &cs1); + mxc_setup_weimcs(4, &cs4); /* setup pins for UART1 */ mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX); -- cgit v1.2.3