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ipq806x: implement GPIO API

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Add implementation of the GPIO API defined in src/include/gpiolib.h.
Also, clean up the GPIO driver, make it use pointers instead of
integers for register address.

This requires a touch in the SPI driver, where the CS GPIO is toggled
and in the board function where it enables USB interface.

BUG=chrome-os-partner:30489
TEST=tested with the following patches, observed proto0 properly read
     the board ID.

Original-Change-Id: I0962947c6bb32a854ca300752d259a48e9e7b4eb
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/210115
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
(cherry picked from commit e951f735001509d135cc61530ed0eecb5fc31a85)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I8a612dce000931835054086c1b02ebfc43dc57d2
Reviewed-on: http://review.coreboot.org/8718
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Vadim Bendebury
2014-07-25 17:34:42 -07:00
committed by Patrick Georgi
parent 9c9c336464
commit d36ef6a51d
5 changed files with 58 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/soc/qualcomm/ipq806x/spi.c
View File

@@ -279,13 +279,13 @@ static int check_qup_clk_state(unsigned int core_num, int enable)
static void CS_change(int port_num, int cs_num, int enable)
{
unsigned int cs_gpio = cs_gpio_array[port_num][cs_num];
uint32_t addr = GPIO_IN_OUT_ADDR(cs_gpio);
void *addr = GPIO_IN_OUT_ADDR(cs_gpio);
uint32_t val = readl_i(addr);
val &= (~(1 << GPIO_OUTPUT));
if (!enable)
val |= (1 << GPIO_OUTPUT);
writel_i(val, addr);
writel(val, addr);
}
/*