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| author | Helmut Raiger <helmut.raiger@hale.at> | 2011-09-29 05:45:03 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-10-27 21:56:30 +0200 |
| commit | 47c5455a489c8e558ecb002a3a97a030ce490f9e (patch) | |
| tree | a0ecca9a95071e6a963ed4d4abedfa5bf8e7745b /board/logicpd/imx31_litekit | |
| parent | 43883dc3e50e224ea68031bf34b766544311bf60 (diff) | |
| download | u-boot-imx-47c5455a489c8e558ecb002a3a97a030ce490f9e.zip u-boot-imx-47c5455a489c8e558ecb002a3a97a030ce490f9e.tar.gz u-boot-imx-47c5455a489c8e558ecb002a3a97a030ce490f9e.tar.bz2 | |
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 <helmut.raiger@hale.at>
Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'board/logicpd/imx31_litekit')
| -rw-r--r-- | board/logicpd/imx31_litekit/imx31_litekit.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/board/logicpd/imx31_litekit/imx31_litekit.c b/board/logicpd/imx31_litekit/imx31_litekit.c index 7214008..c04b351 100644 --- a/board/logicpd/imx31_litekit/imx31_litekit.c +++ b/board/logicpd/imx31_litekit/imx31_litekit.c @@ -26,6 +26,7 @@ #include <netdev.h> #include <asm/arch/clock.h> #include <asm/arch/imx-regs.h> +#include <asm/arch/sys_proto.h> DECLARE_GLOBAL_DATA_PTR; @@ -39,13 +40,28 @@ int dram_init(void) int board_early_init_f(void) { - __REG(CSCR_U(0)) = 0x0000cf03; /* CS0: Nor Flash */ - __REG(CSCR_L(0)) = 0xa0330d01; - __REG(CSCR_A(0)) = 0x00220800; + /* 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(10, 0, 3, 3, 0, 1, 5, 0, 0, 0, 0, 1), + /* ebra ebrn rwa rwn mum lah lbn lba dww dct wwu age cnc2 fce*/ + CSCR_A(0, 0, 2, 2, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0) + }; - __REG(CSCR_U(4)) = 0x0000dcf6; /* CS4: Network Controller */ - __REG(CSCR_L(4)) = 0x444a4541; - __REG(CSCR_A(4)) = 0x44443302; + /* CS4: Network Controller */ + 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, 28, 1, 7, 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) + }; + + mxc_setup_weimcs(0, &cs0); + mxc_setup_weimcs(4, &cs4); /* setup pins for UART1 */ mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX); |